Electric furnace installation and method for producing molten metal

Abstract

An electric furnace apparatus according to one embodiment of the present invention may comprise: a main body member having an internal space capable of processing a raw material; an electrode member mounted to be inserted into the internal space of the main body member; an input member installed in the main body member so as to be able to input a raw material into an internal space of the main body member; and an image capturing member mounted in the main body member to be able to capture an image of a region around the electrode member in the internal space of the main body member; and an input control section that detects a spacing distance (Dm) between the electrode member and a raw material stack formed of raw materials stacked around the electrode member by using a photograph image acquired by the photographing section, and controls the input of the raw material input from the input member to the main body member in accordance with the detected spacing distance (Dm). Accordingly, according to an embodiment of the present invention, a spacing distance between the electrode member and the raw material stack can be detected. In addition, the input of the raw material may be controlled according to the detected spacing distance between the electrode member and the raw material stack. Accordingly, the present invention can prevent the electrode member and the raw material stack from coming into contact with each other.

Description

Technical Field

[0001] The present invention relates to an electric furnace apparatus and a method for producing molten metal, and more particularly, to an electric furnace apparatus and a method for producing molten metal capable of performing uniform operation. Background Art

[0002] Recently, in order to cope with the climate change crisis, carbon neutral technology that minimizes carbon dioxide emissions is being actively developed. Therefore, the steel industry is researching and developing a hydrogen reduction steelmaking process technology that uses hydrogen instead of fossil fuels that emit carbon dioxide to produce direct reduced iron, and uses the direct reduced iron to produce steel. When the hydrogen reduction steelmaking process technology is commercialized, it can not only replace the blast furnace operation that produces a large amount of carbon dioxide, but also replace the converter operation by utilizing the electric furnace operation.

[0003] Direct reduced iron is melted by heat generated at the electrode part of the electric furnace equipment. However, direct reduced iron has a high content of metallic iron. Therefore, if the direct reduced iron contacts the electrode part of the electric furnace equipment, stable operation becomes impossible due to excessive supply of current or change in the current path caused by change in resistance. In addition, if the spacing distance between the electrode part and the raw material pile is too large, there is a problem of reduced operation rate in the electric furnace equipment.

[0004] (Prior Art Document) (Patent Document 1) Korean Registration No. 10-1406503 Summary of the invention

[0005] Technical issues

[0006] The present invention provides an electric furnace apparatus capable of uniform operation and a method for producing molten metal.

[0007] The present invention provides an electric furnace apparatus capable of uniformly heating raw materials and a method for producing molten metal.

[0008] The present invention provides an electric furnace facility capable of allowing uniform current to flow through an electrode part and a method for producing molten metal.

[0009] Technical Solution

[0010] The electric furnace apparatus according to an embodiment of the present invention includes: a main body part having an inner space capable of processing a raw material; an electrode part installed to be inserted into the inner space of the main body part; an input part installed in the main body part to be able to input the raw material into the inner space of the main body part; a photographing part installed in the main body part to be able to photograph an area around the electrode part in the inner space of the main body part; and an input control part that detects a spacing distance D between the electrode part and a raw material pile generated by the raw material piled around the electrode part by using a photographic image acquired by the photographing part. m , and according to the detection interval distance D m To control the input of raw materials from the input component to the main component.

[0011] The electric furnace apparatus may further include a supply component configured to supply the raw material to the input component and connected to the input component to adjust the amount of the raw material supplied to the input component, wherein the input control component is configured to adjust the amount of the raw material supplied to the input component according to the detected interval distance D m Controls the operation of supplied components.

[0012] The input control component may be configured to adjust the input voltage according to the spacing distance D between the pile of raw materials accumulated around the electrode component and the electrode component. m To control the input of raw materials into the main part, and use the spacing distance D m Different data controls the input of raw materials that are input closer to the inner wall of the body part than to the electrode part.

[0013] The main body part may include: a furnace body having an internal space; and a cover configured to cover an upper portion of the furnace body, wherein the electrode part and the input part are installed to pass through the cover in a vertical direction, and the photographing part is installed to the side wall of the furnace body to photograph the internal space of the main body part.

[0014] A hole may be defined through the side wall of the furnace in the thickness direction, the photographing member is installed to be inserted into the hole, a transmission window is installed to one end of the hole facing the inner surface of the furnace body, and the photographing member is installed to face the window.

[0015] The photographing member may be installed tilted such that its height decreases toward an end facing the interior space.

[0016] The input component may include: a first input component installed to be arranged around the electrode component; and a second input component installed outside the first input component to be farther away from the electrode component than the first input component, wherein the shooting component is installed to obtain a photographic image of the first raw material pile and the electrode component generated by inputting the raw material from the first input component into the inside of the main body component.

[0017] The supply component may include: a first supply component configured to supply the raw material to the first input component; and a second supply component configured to supply the raw material to the second input component, wherein the input control component may include: a first input control component configured to detect the spacing distance D between the electrode component and the first raw material pile by using a photo image. m , thus by using the detection interval distance D m to control the operation of the first supply component; and a second input control component configured to control the operation of the second supply component.

[0018] The first input control part may include: a recognition image generator configured to recognize the electrode part and the first raw material pile in the photo image to generate a recognition image in which the recognized electrode part and the first raw material pile are distinguished from each other; and a distance detector configured to detect a spacing distance D between the electrode part and the first raw material pile by using the recognition image. m and a first input controller, the first input controller is configured to be based on the interval distance D detected by the distance detector m To control the operation of the first supply component, wherein the first input controller can be determined by utilizing the detected interval distance D m The method of inputting the raw material from the first input member is determined as one of maintaining, increasing and decreasing the input amount or stopping the input based on a preset reference interval distance.

[0019] The electric furnace apparatus may further include a first sensor unit provided at one side of the first input part to detect a spacing distance between the first raw material pile and the cover, wherein the first input control part may include a first height detector configured to detect a height H of the first raw material pile by using the spacing distance between the first raw material pile and the cover detected by the first sensor unit. cm , and the first input controller is configured to, when the input method of the first input component is determined as one of an increase and a decrease in the input amount, by utilizing the height H of the first raw material pile cm To determine the input amount of the raw material to be input through the first input component.

[0020] The first input control part may include a second height detector configured to detect a height H of the first raw material pile by using the recognition image. cm , and the first input controller may be configured to, when determining the input method of the first input component as one of an increase and a decrease in the input amount, by utilizing the height H of the first raw material pile cmTo determine the input amount of the raw material to be input through the first input component.

[0021] The first input controller may be configured to, when determining the input method of the first input member as one of an increase and a decrease in the input amount, detect the interval distance D by using the detected interval distance D. m The difference between the reference spacing distance and the input amount of the raw material to be input through the first input member is determined.

[0022] The electric furnace apparatus may further include a second sensor unit disposed at one side of the second input component to detect a spacing distance between a second raw material pile generated by the raw material input from the second input component into the inside of the main body component and the cover, wherein the second input control component may include: a third height detector configured to detect a height H of the second raw material pile by utilizing the spacing distance between the second raw material pile and the cover detected by the second sensor unit. sm and a second input controller, the second input controller is configured to control the operation of the second supply component, thereby based on the height H of the second raw material pile detected sm To control at least one of whether the raw material is input from the second input component or the input amount of the raw material.

[0023] The method for manufacturing molten metal includes: inputting raw materials into an electric furnace; supplying power to an electrode component disposed in the electric furnace to melt the raw materials; photographing the interior of the electric furnace to obtain a photo image including the electrode component and a pile of raw materials piled around the electrode component; detecting a spacing distance D between the electrode component and the pile of raw materials by using the photo image m ; and by utilizing the spacing distance D between the electrode component and the raw material pile detected m To control the input of raw materials around the electrode components.

[0024] The distance D between the electrode component and the raw material pile m The detection may include: recognizing the electrode component and the raw material pile in the photo image to generate an identification image, by which the identified electrode component and the raw material pile are distinguished from each other; and detecting the spacing distance D between the electrode component identified by the identification image and the raw material pile. m .

[0025] The control of the input of the raw material input around the electrode component may include: based on the detected spacing distance D between the electrode component and the raw material pile. m to determine the input method as one of maintenance, increase and decrease of the input amount and stop of the input; and to input the raw material around the electrode member according to the determined input method.

[0026] The method may further include detecting the height of the raw material, wherein when the input method is determined as one of an increase and a decrease in the input amount in the determination of the input method, the control of the input of the raw material input around the electrode component may include determining the input amount of the raw material by utilizing the detected height of the raw material pile, and inputting the determined input amount of the raw material in the input of the raw material based on the determined input method.

[0027] The detection of the height of the raw material pile may include: emitting electromagnetic waves or light to the raw material pile by using a sensor unit disposed above the raw material pile to detect a spacing distance between the sensor unit and the raw material pile; and detecting the height H of the raw material pile by using the detected spacing distance between the sensor unit and the raw material pile. cm .

[0028] The method may further include determining a fault in the sensor unit, wherein the determination of the fault in the sensor unit may include comparing the detected interval distance between the sensor unit and the raw material pile with a predetermined fault determination distance to determine the fault in the sensor unit, and when it is determined that the fault in the sensor unit occurs, the height H of the raw material pile is cm The detection may include detecting the height H of the raw material pile identified on the identification image. cm .

[0029] When the input method is determined as one of increase and decrease of the input amount in the determination of the input method, the control of the input of the raw material input around the electrode part may include controlling the input of the raw material by utilizing the detected spacing distance D between the electrode part and the raw material pile. m The input amount of the raw material is determined by the difference from the preset reference interval distance, wherein in the input of the raw material based on the determined input method, the determined amount of the raw material can be input.

[0030] The method may further include using a spacing distance D between the electrode component and the raw material pile to detect m Different data are used to input the raw materials into a portion closer to the inner wall of the electric furnace than the electrode part.

[0031] The method may further include: detecting a height H of a second raw material pile formed in the electric furnace. sm , the second raw material pile is farther from the electrode component than the first raw material pile which is a raw material pile piled around the electrode component; detecting a height H of the second raw material pile provided in the electric furnace which is farther from the electrode component than the first raw material pile sm By using the height H of the second raw material pile detected smand determining the input method as one of maintaining, increasing and decreasing the input amount and stopping the input by using the dimensional relationship between the second raw material pile and the preset reference height; and sm The input amount of the raw material can be determined by the difference between the height H of the second raw material pile and the reference height H, wherein inputting the raw material to a position farther from the electrode component than the first raw material pile can include determining the input amount of the raw material to a position farther from the electrode component than the first raw material pile based on the height H of the second raw material pile sm Determine the input method and input quantity to input raw materials.

[0032] The raw material may include hydrogen direct reduced iron reduced by hydrogen.

[0033] Beneficial Effects

[0034] Therefore, according to an exemplary embodiment, the spacing distance between the electrode component and the raw material pile can be detected. In addition, the input of the raw material can be controlled according to the spacing distance between the detected electrode component and the raw material pile. This can prevent the electrode component from contacting the raw material pile. Therefore, when power is applied to the electrode component, oscillation of the current can be prevented from occurring at the electrode component. Therefore, a uniform current can flow through the electrode component. Therefore, the raw material can be uniformly heated, which allows uniform operation. In addition, it can prevent problems such as a reduction in the operating rate of the electric furnace equipment and the productivity of the molten metal due to oscillation. Therefore, the operating rate of the electric furnace equipment and the productivity of the molten metal can be improved.

[0035] In addition, the electrode unit and the raw material pile can be adjusted to be spaced apart from each other by a predetermined distance, thereby allowing the slag to be exposed to an appropriate area. Therefore, the loss of heat and the erosion of the refractory material caused by the exposed slag can be suppressed or prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 is a plan view of an electric furnace apparatus according to an exemplary embodiment when viewed from above.

[0037] Figure 2 is a cross-sectional view of an electric furnace apparatus according to an exemplary embodiment.

[0038] Figure 3 for Figure 1 A plan view of the portion shown.

[0039] Figure 4 is a plan view of a main body part of an electric furnace apparatus according to an exemplary embodiment when viewed from above, and shows a raw material pile, slag, and electrodes inside the main body part.

[0040] Figure 5 (a) is a photographic image I acquired from a photographing component according to an exemplary embodiment. sExamples of Figure 5 (b) is to use the photo image I s Generated recognition image I d Instance of .

[0041] Figure 6 (a) is a view illustrating a method of detecting a height of a first raw material pile using a first sensor unit and a first height detector according to an exemplary embodiment.

[0042] Figure 6 (b) is a view illustrating a method of detecting a height of a second material pile using a second sensor unit and a third height detector according to an exemplary embodiment.

[0043] Figure 7 The flowchart shows a method of inputting a raw material into a body part using a first input control part according to an exemplary embodiment.

[0044] Figure 8 The flowchart shows a method of inputting a raw material into a body part using a second input control part according to an exemplary embodiment. DETAILED DESCRIPTION

[0045] Hereinafter, embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. However, the present disclosure may be implemented in different forms and should not be construed as being limited to the exemplary embodiments set forth herein. On the contrary, these embodiments are provided so that the present disclosure will be exhaustive and complete, and will fully convey the scope of the present disclosure to those skilled in the art. In the accompanying drawings, for clarity of illustration, the dimensions are enlarged, and the same reference numerals refer to the same elements throughout.

[0046] Figure 1 is a plan view of an electric furnace apparatus according to an exemplary embodiment when viewed from above. Figure 2 is a cross-sectional view of an electric furnace apparatus according to an exemplary embodiment. Figure 3 for Figure 1 A plan view of the portion shown. Figure 4 is a plan view of a main body part of an electric furnace apparatus according to an exemplary embodiment when viewed from above, and shows a raw material pile, slag, and electrodes inside the main body part.

[0047] Here, Figure 2 is a cross-sectional view of an electrode member and a first input member according to an exemplary embodiment.

[0048] The electric furnace equipment is a device that melts the raw materials input therein to produce molten material (i.e., molten metal). Figure 1 and Figure 2 The electric furnace apparatus includes: a main body part 1000 having an internal space capable of processing raw materials; an electrode part 2000 installed to the main body part to supply heat for melting the raw materials M inside the main body part 1000; an input part 3000 installed to the main body part 1000 to input the raw materials M into the main body part 1000; a supply part 4000 to supply the raw materials M to the input part 3000; a photographing part 6000 installed to the main body part 1000 to photograph the interior of the main body part 1000; and an input control part 8000, which detects a pile P generated by the piled raw materials using an image obtained from the photographing part 6000. m The supply part 4000 is controlled to detect the spacing distance between the electrode part 2000 and the supply part 4000.

[0049] In addition, the electric furnace apparatus may include: a storage part 5000 in which the raw material M to be supplied to the supply part is stored; and a raw material pile P installed to the main body part 1000 to measure the raw material pile P accumulated inside the main body part 1000. m and a power supply member (not shown) connected to the electrode member 2000 to supply power.

[0050] The raw material M input to the internal space of the main body part 1000 may include direct reduced iron DRI. In addition, a reducing agent is input into the main body part 1000 to reduce DRI, and the reducing agent may be a gas containing hydrogen. A more specific example is that the reducing agent may be hydrogen. The reducing agent, which is a gas containing hydrogen, may be input into the main body part through a reducing agent supply pipeline installed separately from the input part 3000 (e.g., connected to the main body part 1000).

[0051] When power is supplied to the electrode part 2000 and heat is generated inside the body part 1000, the raw material M (ie, DRI) is melted. In addition, the raw material M is reduced by a reducing agent including hydrogen, thereby manufacturing a molten metal L.

[0052] The DRI may be at least one of low-grade direct reduced iron produced using an ore having an Fe content of less than 65 wt % and high-grade direct reduced iron produced using an ore having an Fe content of 65 wt % or more.

[0053] Furthermore, when a material containing hydrogen is used as a reducing agent, DRI reduced by hydrogen may be referred to as 'hydrogen direct reduced iron'. Therefore, an electric furnace apparatus that melts and reduces hydrogen direct reduced iron to produce molten metal L may be referred to as an electric furnace apparatus for melting hydrogen reduced direct reduced iron.

[0054] The use of a material containing hydrogen as a reducing agent is described above. However, various materials such as coke may be used as a reducing agent to reduce direct reduced iron.

[0055] In addition, the raw material introduced into the body part 1000 is not limited to direct reduced iron, and may include scrap having a higher Fe content than direct reduced iron. The scrap may be scrap having an Fe content exceeding 70 wt %, more preferably 85 wt % to 99 wt %.

[0056] Reference Figure 2 , the body part 1000 may include a furnace body 1100 having an internal space and a cover 1200 covering an opening defined in an upper portion of the furnace body 1100 .

[0057] The furnace body 1100 may have a cylindrical shape having an inner space and an open upper portion. Figure 1 and Figure 2 As shown, the furnace body 1100 may include an outer wall structure 1100a made of a steel plate or metal, and an inner wall structure 1100b made of a refractory material to surround the inner wall of the outer wall structure 1100a.

[0058] The furnace body 1100 may be provided with a first outlet (not shown) for discharging the molten metal L and a second outlet (not shown) for discharging the slag S floating on the upper portion of the molten metal L. The first outlet and the second outlet may each be provided on the side wall of the furnace body 1100 or the bottom of the furnace body 1100. For example, the first outlet may be provided on one side wall of the furnace body 1100, and the second outlet may be provided on the other side wall of the furnace body 1100. Here, the first outlet and the second outlet are not limited to the above-mentioned positions, and may be provided at various positions capable of discharging the molten metal L and the slag S to the outside.

[0059] A container capable of containing each of the molten metal L and the slag S is disposed outside the furnace body 1100. In other words, a first container may be disposed below the first outlet, and a second container may be disposed below the second outlet outside the furnace body 1100. Here, for example, the first container in which the molten metal L discharged from the first outlet is contained may be a ladle, and the second container in which the slag S discharged from the second outlet is contained may be a slag pot.

[0060] The cover 1200 is mounted on the furnace body 1100 to close the upper opening of the furnace body 1100. The cover 1200 may have a hole allowing a portion of each of the electrode part 2000, the input part 3000, and the sensor unit 7000 to pass therethrough.

[0061] like Figure 1 and Figure 2As shown, the main body part 1000 including the furnace body 1100 and the cover 1200 may have a square shape, and more specifically a rectangular shape. Figure 1 As shown, the main body part 1000 may have a rectangular shape having a length extending in one direction, the X-axis direction, which is shorter than a length extending in another direction, the Y-axis direction. In other words, the furnace body 1100 may have a rectangular shape having a length extending in one direction, the X-axis direction, which is shorter than a length extending in another direction, the Y-axis direction, and the cover 1200 may be provided in a shape corresponding to or the same as that of the furnace body 1100.

[0062] Here, the shape of the body part 1000 may not be limited thereto and may be circular. In addition, the shape of the body part 1000 may be changed to a polygon other than a rectangle, such as a triangle, a pentagon, or various other shapes.

[0063] The main body part 1000 may be referred to as an electric furnace.

[0064] The electrode part 2000 supplies heat energy to melt and reduce the raw material inside the body part 1000. The electrode part 2000 may have Figure 2 The shape extending in the vertical direction shown in the figure, and can be installed to pass through the cover 1200 of the main body part 1000 in the vertical direction. Here, one of the two ends of the electrode part 2000 in the extension direction can be arranged below the cover 1200, and the other end of the electrode part 2000 can be arranged above the cover. In addition, when one end of the electrode part 2000 is installed inside the main body part 1000, this end of the electrode part 2000 is installed at a predetermined distance from the upper part of the slag S. In addition, the other end of the electrode part 2000 protruding above the cover 1200 can be connected to a power supply component (not shown). Here, power can refer to voltage or current, and the heat generated in the electrode part 2000 can include resistance heat generated due to the applied power.

[0065] When the power supply part 4000 is operated to apply power to the electrode part 2000, the electrode part 2000 generates resistance due to the slag S and the arc resistance, thereby supplying heat energy into the body part 1000. Therefore, the slag is heated inside the body part 1000, and the raw material is melted by the heated slag S to produce molten metal L. In other words, Figure 2 and Figure 4 As shown, a pile P is generated by raw materials accumulated in the upper part of the slag S. m (P cm and P sm ), and the raw material pile P m The heated slag S is melted, thereby producing molten metal L.

[0066] When the raw material pile P inside the main body part 1000 is m (P cm and P sm ) is melted, from the raw material pile P closest to the slag S m (P cm and P sm ) layer or the lower layer in contact with the slag S, the raw material pile P m (P cm and P sm ) starts to melt. Then, over time, the raw materials in the upper layers melt as it moves downward.

[0067] like Figure 1 and Figure 4 As shown, the electrode component 2000 can be installed, for example, to be arranged at a central part or central area in a direction X-axis direction. Here, the central part or central area in a direction X-axis direction may include an area from a central position in a direction X-axis direction to a point at a predetermined distance from the central position.

[0068] In addition, a plurality of electrode parts 2000 may be provided, and the plurality of electrode parts 2000 may be arranged to be spaced apart from each other in another direction, the Y-axis direction, which intersects or is orthogonal to one direction, the X-axis direction.

[0069] The plurality of electrode parts 2000 may be connected to a single power supply part, and the power supply part may control power supplied to each of the plurality of electrode parts 2000. However, the power supply part is not limited thereto, and the plurality of power supply parts may be provided to be connected to the plurality of electrode parts 2000 one-to-one.

[0070] The input part 3000 (3100 and 3200) may have a shape that provides a passage through which the raw material M passes inside. For example, the input part 3000 may have a tube shape having an internal passage and open ends on both sides. The input part 3000 may be installed to pass through the cover 1200 in the vertical direction. Here, one end of the input part 3000 may be disposed below the cover 1200, and the other end may protrude above the cover. Here, the other end of the input part 3000 disposed above the cover 1200 serves as an inlet through which the raw material is introduced into the input part 3000, and the one end of the input part 3000 disposed below the cover 1200 serves as an outlet through which the raw material is discharged into the main body part 1000.

[0071] A plurality of input components 3000 are provided, and the plurality of input components 3000 (3100 and 3200) are arranged and installed in one direction, the X-axis direction, and another direction, the Y-axis direction, intersecting the one direction, the X-axis direction, respectively. To state this in another way: the input components 3000 may be arranged in a plurality of rows in each of one direction, the X-axis direction, and another direction, the Y-axis direction.

[0072] Hereinafter, for convenience of explanation, the input part installed around the electrode part 2000 will be referred to as the first input part 3100. In addition, the input part provided on the outer portion of the first input part 3100 may be referred to as the second input part 3200, such that the second input part is relatively farther from the electrode part 2000 than the first input part 3100.

[0073] like Figure 1 As shown, when the electrode part is disposed at the center portion in the one direction X-axis direction, the first input part 3100 may be described as an input part installed at the center portion in the one direction X-axis direction to be disposed around the electrode part 2000. In addition, the second input part 3200 may be described as an input part disposed on both outer sides of each of the first input parts 3100 with respect to the one side direction X-axis direction.

[0074] The case where the electrode component 2000 is disposed at the center portion in one direction and the first input component 3100 is disposed around the electrode component 2000 will be described again as follows. The first input component 3100 may be installed to be disposed at the center portion in one direction X-axis direction to be disposed around the electrode component 2000. A plurality of first input components 3100 are provided and arranged in another direction Y-axis direction. In addition, a plurality of first input components 3100 may also be arranged in one direction X-axis direction. In addition, each of the first input components 3100 may be installed to be disposed between two electrode components 2000. That is, one first input component 3100 may be installed between two adjacent electrode components 2000. In other words, the electrode component 2000 and the first input component 3100 may be arranged alternately in another direction Y-axis direction. In addition, the first input component 3100 may be installed between the electrode components on both sides in another direction Y-axis direction inside the body component 1000.

[0075] The second input component 3200 may be installed on both outer sides of the first input component 3100 in one direction, the X-axis direction. A plurality of second input components 3200 are provided and arranged in another direction, the Y-axis direction. The second input component 3200 differs from the first input component 3100 described above only in its installation position, and its shape or structure is the same. Therefore, the description of the second input component 3200 will be omitted.

[0076] As described above, a plurality of input components 3000 are provided and arranged in one direction, the X-axis direction, and another direction, the Y-axis direction, respectively. That is, the electric furnace apparatus may include a plurality of first input components 3100 and a plurality of second input components 3200, and the plurality of first input components 3100 and the plurality of second input components 3200 are arranged in each of one direction, the X-axis direction, and another direction, the Y-axis direction. Therefore, the positions of each of the plurality of first input components 3100 and the plurality of second input components 3200 are different from each other. The positions of each of the plurality of first input components 3100 and the plurality of second input components 3200 may be stored in the input control component 8000 described below.

[0077] The storage part 5000 is a device for storing raw materials M to be input to the main body part 1000, and the raw materials stored in the storage part 5000 may include direct reduced iron. The storage part 5000 may include a first storage part 5100 in which the raw materials to be supplied to the first input part 3100 are stored, and a second storage part 5200 in which the raw materials to be supplied to the second input part 3200 are stored.

[0078] The supply unit 4000 is a device for supplying raw materials to the plurality of input parts 3100 and 3200. The supply unit 4000 may include a first supply unit 4100 supplying the raw materials M to the first input part 3100 and a second input part 3200 supplying the raw materials to the second input part 3200.

[0079] First, the first supplying part 4100 will be described.

[0080] The first supply unit 4100 may include a first conveying member 4110 installed to connect the first storage part 5100 and the first input part 3100 , and a first adjusting member 4120 installed on the first conveying member 4110 .

[0081] The first conveying member 4110 may have a tube shape in which a passage is defined to allow the raw material M to pass therethrough. Both ends of the first conveying member 4110 may be open, and one end of the first conveying member 4110 may be connected to the first input part 3100 , and the other end may be connected to the first storage part 5100 .

[0082] The first regulating member 4120 regulates the communication between the first storage part 5100 and the first input part 3100, and regulates the input amount of the material M. The first regulating member 4120 may be mounted on the first conveying member 4110 connected between the first storage part 5100 and the first input part 3100. In addition, the first regulating member 4120 may be a device including a valve. The first regulating member 4120 may regulate the communication between the first storage part 5100 and the first input part 3100 by its opening and closing operation. In addition, the first control member 4120 may regulate the input amount of the raw material M supplied to the first input part 3100 by regulating the degree of its opening. Here, regulating the input amount may include regulating the input rate. In addition, the first control member 4120 is controlled by the input control member 8000 described below in terms of its operation. In other words, at least one of the open / closed state or the degree of opening may be controlled by the input control member 8000.

[0083] The above-mentioned first supply unit 4100 may be provided in a plurality of numbers to be connected to each of the plurality of first input parts 3100. In other words, the first supply unit 4100 may be connected to each of the plurality of first input parts 3100 individually.

[0084] The second supply part 4200 supplies raw materials to the second input part 3200, and is different from the supply unit 1 4100 only in the target of its supply, and its configuration is the same or similar. That is, the second supply unit 4200 may include a second conveying member 4210 installed to connect the second storage part 5200 and the second input part 3200, and a second regulating member 4220 installed on the second conveying member 4210. Here, the second conveying member 4210 and the second regulating member 4220 of the second supply part 4200 have the same shape and structure as the above-mentioned first conveying member 4110 and the first regulating member 4120. Therefore, the description of the second conveying member 4210 and the second regulating member 4220 will be omitted.

[0085] The above-mentioned second supply unit 4200 may be provided in a plurality of numbers to be connected to each of the plurality of second input parts 3200. In other words, the second supply unit 4200 may be connected to each of the plurality of second input parts 3200 individually.

[0086] In the above, if Figure 1 As shown, it is explained that a plurality of first supply units 4100 are connected to one first storage part 5100, and a plurality of second supply units 4200 are connected to one second storage part 5200. However, it is not limited thereto, and the first storage part 5100 and the second storage part 5200 can each be arranged in multiples. In addition, the first supply unit 4100 can be connected to each of the plurality of first storage parts 5100, and the second supply unit 4200 can be connected to each of the plurality of second storage parts 5200.

[0087] In addition, the first storage part 5100 and the second storage part 5200 may not be separately provided, and a single storage part may be provided. In this case, the plurality of first supply units 4100 and the plurality of second supply units 4200 may be connected to the single storage part.

[0088] When the raw material M is input into the main body part 1000 using the input part 3000, the raw material is accumulated on the upper portion of the surface of the slag S. Therefore, a pile of the accumulated raw material is provided on the upper portion of the slag S, and hereinafter, it is referred to as a 'raw material pile P'. m '.

[0089] In addition, since the raw material M is input into the main body part 1000 by using the plurality of first input parts 3100 and the plurality of second input parts 3200, there are a plurality of raw material piles P provided inside the main body part 1000. m (P cm and P sm Here, the raw material pile P can be provided as many as the number of input parts 3000. m (P cm and P sm ), and if Figure 1 and Figure 4 As shown, the raw material pile is disposed to correspond to the lower side of each of the plurality of input members 3000 .

[0090] Raw material pile P m (P cm and P sm ) may be arranged to face the lower side of the input part 3000 (3100 and 3200) and provided in the same number as the input part 3000 (3100 and 3200). That is, the raw material pile P m (P cm and P sm ) may be disposed below each of the plurality of input parts 3000 (3100 and 3200). In other words, the plurality of raw material piles P m (P cmand P sm ) can be arranged in one direction, the X-axis direction, and in another direction, the Y-axis direction.

[0091] Hereinafter, the raw material pile input from the first input part 3100 to the main body part 1000 is referred to as the 'first raw material pile P'. cm ', and the raw material pile input from the second input part 3200 to the main part 1000 is referred to as 'second raw material pile P sm '.

[0092] Therefore, the first raw material pile P cm It can be interpreted as a raw material pile arranged around the electrode part 2000. For example, when a plurality of raw material piles are arranged in one direction relative to the electrode part 2000, the raw material pile P around the electrode part 2000 cm It may refer to the raw material pile P closest to the electrode part 2000 among the plurality of raw material piles arranged in the one direction. cm In addition, the plurality of raw material piles P cm The raw material pile P around the electrode unit 2000 may be arranged around the electrode component 2000 in the circumferential direction of the electrode component 2000. In this case, the raw material pile P around the electrode unit 2000 cm The raw material piles P may be arranged around the electrode unit 2000 in the circumferential direction. cm In addition, when the electrode component 2000 is detected and the raw material pile P disposed around the electrode component 2000 is cm When the spacing distance between the plurality of raw material piles P arranged around the electrode component 2000 is cm The spacing distance D between each of the electrodes and the electrode component 2000 cm .

[0093] Furthermore, the second raw material pile P can be described sm Set in the first raw material pile P cm , so that it is farther away from the electrode unit 2000 than the first raw material pile.

[0094] Sensor units 7000: 7100 and 7200 are used to measure the raw material pile P m (P cm and P sm) in height and installed in the main body part 1000. For example, the sensor unit 7000 may be installed to pass through the cover 1200 in the vertical direction. In other words, a hole through which the sensor unit 7000 may pass may be defined in the cover 1200, and the sensor unit 7000 may be inserted into the hole. Here, the sensor unit 7000 may be installed so that its end is disposed on the same plane as the bottom surface of the cover 1200. Here, the bottom surface of the cover 1200 may be referred to as a surface facing the inside of the main body part 1000.

[0095] The sensor unit 7000 (7100 and 7200) is used to measure and detect the distance from the raw material pile P m (P cm and P sm ) to detect the raw material pile P m (P cm and P sm That is, when the sensor unit 7000 (7100 and 7200) measures the height of the raw material pile P m (P cm and P sm ), the measured spacing distance may be transmitted to the input control part 8000. In addition, the input control part 8000 may communicate with the raw material pile P by utilizing the sensor unit 7000 (7100 and 7200). m (P cm and P sm ) to detect the raw material pile P m (P cm and P sm )’s height.

[0096] The detection sensor unit 7000 (7100 and 7200) and the raw material pile P will be described later together with the input control part 8000. m (P cm and P sm ) and detecting the raw material pile P by using the detected spacing distance m (P cm and P sm )’s height method.

[0097] The sensor unit 7000 (7100 and 7200) may include a distance sensor (i.e., a radar sensor) that emits electromagnetic waves into the main body part 1000 and measures the distance using the reflected electromagnetic waves. Here, the sensor unit 7000 is not limited to the above-mentioned radar sensor, and may include an optical sensor that emits light such as ultrasound or infrared and measures the distance using the reflected light. In the following, the example in which the sensor unit 7000 includes a radar sensor that emits electromagnetic waves will be described.

[0098] The sensor units 7000 (7100 and 7200) may be provided in the same or corresponding number as the input components 3000, 3100, 3200. That is, the plurality of sensor units 7000 (7100 and 7200) may be provided in the same number as the input components 3000, 3100, and 3200. In addition, the sensor units 7000 (7100 and 7200) may be arranged in pairs with the input components 3000, 3100, and 3200. Specifically, as Figure 2 As shown, the sensor unit 7000 (7100 and 7200) may be provided at one side of the input parts 3000, 3100, and 3200, and a one-to-one arrangement of the sensor unit 7000 (7100 and 7200) and each of the plurality of input parts may be provided.

[0099] Therefore, the plurality of sensor units 7000: 7100, 7200 may be arranged in the same manner as the plurality of input components 3000, 3100 and 3200. Figure 1 When describing the arrangement of the plurality of sensor units 7000 (7100 and 7200), the plurality of sensor units 7000 (7100 and 7200) may be arranged in a row in each of one direction, the X-axis direction, and another direction, the Y-axis direction, of the main body part. Explained in another way, the input part 7000 (7100 and 7200) may be arranged in a plurality of rows in each of one direction, the X-axis direction, and another direction, the Y-axis direction.

[0100] The raw material pile P generated by discharging the raw material M from the input parts 3000, 3100, 3200 m (P cm and P sm ) can be set to have a predetermined repose angle. The repose angle can be adjusted according to the size of the raw material particles and the ratio of the sizes. In addition, Figure 1 and Figure 4 As shown, the raw material pile P m (P cm and P sm ) may have a shape that widens toward its lower portion. m (P cm and P sm )'s topmost layer's height can be the highest in the width direction.

[0101] When the sensor unit 7000: 7100, 7200 is installed, the sensor unit can be set at the raw material pile P m (P cm and P sm) in the width direction of the central portion. In other words, the sensor units 7000: 7100, 7200 may be installed to face the raw material pile P m (P cm and P sm ) in the width direction. The sensor units 7000: 7100, 7200 are installed on the raw material pile P m (P cm and P sm ) in the width direction, the raw material pile P can be identified by multiple tests or operations. m (P cm and P sm ) in the width direction. In addition, since the raw material pile P m (P cm and P sm ) may be the highest in the width direction, and thus the sensor unit 7000 (7100 and 7200) is provided to be installed in such a manner that it is disposed at the top of the raw material pile P. m (P cm and P sm ) in the width direction of the center part.

[0102] Hereinafter, the sensor unit provided at one side of the first input part 3100 is referred to as the first sensor unit 7100, and the sensor unit provided at one side of the second input part 3200 is referred to as the second sensor unit 7200. Therefore, it can be understood that the first sensor unit 7100 is a sensor unit installed around the electrode part 2000, and the second sensor unit 7200 is a sensor unit provided on the outer side of the first sensor unit 7100 such that the distance thereof from the electrode part 2000 is greater than the distance of the first sensor unit 7100 from the electrode part 2000.

[0103] like Figure 1 As shown, when the electrode part is disposed at the central portion in one direction X-axis direction, the first sensor unit 7100 may be described as a sensor unit installed at the central portion in one direction X-axis direction to be disposed around the electrode part 2000. In addition, the second sensor unit 7200 may be described as a sensor unit disposed on both outer sides of each of the first sensor units 7100 with respect to one side direction X-axis direction.

[0104] The first sensor unit 7100 detects the first sensor unit 7100 and the first raw material pile P cm The first raw material pile P detected by the first sensor unit 7100 cmThe distance between the first raw material pile P is transmitted to the input control component 8000. The input control component 8000 uses the distance between the first raw material pile P cm The first raw material pile P is detected at a spacing distance cm Here, the first raw material pile P cm The height of the slag S can be the height between the upper surface of the slag S and the first raw material pile P cm The distance between the top layers.

[0105] The second sensor unit 7200 detects the second sensor unit 7200 and the second raw material pile P sm The second raw material pile P to be detected by the second sensor unit 7200 sm The distance between the first raw material pile P and the second raw material pile P is transmitted to the input control component 8000. The input control component 8000 uses the distance between the first raw material pile P and the second raw material pile P to transmit the distance between the first raw material pile P and the second raw material pile P to the input control component 8000. sm The second raw material pile P is detected at a distance of sm Here, the second raw material pile P sm The height of the slag S can be the height between the upper surface of the slag S and the second raw material pile P sm The distance between the top layers.

[0106] As described above, the sensor unit 7000 is provided at one side of each of the plurality of input parts 3000. In other words, the first sensor unit 7100 is provided at one side of each of the plurality of first input parts 3100, and the second sensor unit 7200 is provided at one side of each of the plurality of second input parts 3200. Therefore, the number of the first sensor units 7100 may be the same as that of the first input parts 3100, and the number of the second sensor units 7200 may be the same as that of the second input parts 3200.

[0107] Similarly, the sensor unit 7000: 7100, 7200 is provided on one side of the input part 3000 (3100 and 3200), which may mean that the input part 3000 (3100 and 3200) and the sensor unit 7000: 7100, 7200 are provided in a one-to-one matching or connection. For this purpose, as Figure 2 and Figure 3 As shown, the input component and the sensor unit can be mounted on a single body. Figure 2 , the first input part 3100 and the first sensor unit 7100 are installed on one body 31, and the second input part 3200 and the second sensor unit 7200 may be installed on another body (not shown).

[0108] As described above, the first sensor unit 7100 is installed on one side of each of the plurality of first input members 3100. The first sensor unit 7100 radiates electromagnetic waves downward to detect the first raw material pile P stacked therebelow. cm In addition, the distance between the detected first raw material pile P cm The first sensor unit 7100 transmits information including the position of the first input component 3100 matched or associated with the first sensor unit 7100 to the input control component 8000. In other words, the information transmitted to the input control component 8000 by the first sensor unit 7100 includes the position of the first input component 3100 associated with the first sensor unit 7100 and the distance from the first raw material pile P disposed below the first input component 3100. cm In addition, each of the plurality of sensor units 7100 can measure the distance from the first raw material pile P disposed therebelow. cm Therefore, the information transmitted to the input control part 8000 by each of the plurality of first sensor units 7100 includes the position of each first input part 3100 associated with the corresponding first sensor unit 7100 and the distance from the first raw material pile P disposed below the first input part 3100. cm The interval distance.

[0109] In addition, the second sensor unit 7200 is installed at one side of each of the plurality of second input members 3200, and the second sensor unit 7200 detects the second raw material pile P disposed therebelow. sm The distance between the detected and the second raw material pile P sm The second sensor unit 7200 transmits the information including the position of the second input component 3200 matched or associated with the second sensor unit 7200 to the input control component 8000. In other words, the information provided by the second sensor unit 7200 includes the position of the second input component 3200 associated with the second sensor unit 7200 and the distance from the second raw material pile P disposed below the second input component 3200. sm In addition, each of the plurality of second sensor units 7200 measures the distance from the second raw material pile P disposed therebelow. sm Therefore, the information provided by each of the plurality of second sensor units 7200 includes the position of each second input component 3200 associated with the corresponding second sensor unit 7200 and the distance from the second raw material pile P disposed below each second input component 3200. sm The interval distance.

[0110] Therefore, the input control part 8000 may detect the plurality of first raw material piles P based on the information transmitted from each of the plurality of first sensor units 7100 and the second sensor units 7200. cm and a plurality of second raw material piles P sm In other words, the first raw material piles P cm and a plurality of second raw material piles P sm The positions of the plurality of first raw material piles P are different from each other, and these positions are determined by the positions of the plurality of first input parts 3100 and the plurality of second input parts 3200. In addition, each of the plurality of first sensor units 7100 and the plurality of second sensor units 7200 transmits the position information of the plurality of first input parts 3100 and the plurality of second input parts 3200 to the input control part 8000. Therefore, the input control part 8000 can detect the plurality of first raw material piles P disposed at different positions. cm and a plurality of second raw material piles P sm The height of each of .

[0111] The photographing part 6000 is a device for photographing the inside of the main body part 1000 to obtain image or video data. For convenience of explanation, the data obtained from the photographing part 6000 will be referred to as 'image data'.

[0112] The photographing part 6000 is installed in the main body part 1000 to photograph the inside of the main body part 1000. More specifically, the photographing part 6000 is installed in the main body part 1000 to photograph the electrode unit 2000 and the first raw material pile P disposed around the electrode unit 2000. cm .

[0113] like Figure 1 and Figure 3 As shown, the photographing component 6000 may be installed in the furnace body 1100 of the main body component 1000. Figure 3 As shown in the enlarged view of , the photographing member 6000 may be installed to pass through the side wall of the furnace body 1100 or be inserted into the side wall of the furnace body 1100. More specifically, a hole 1111 may be provided in the side wall of the furnace body 1100, and at least a portion of the photographing member 6000 may be inserted into the hole. In addition, a transparent window 1110 may be installed to one end of the hole 1111 facing the inner space of the furnace body 1100. In this case, the window 1110 may be made of heat-resistant glass.

[0114] The photographing member 6000 is installed to be inserted into the hole 1111, with one end (specifically, the lens) being positioned to face the window 1110. In addition, the photographing member 6000 is installed at an angle to photograph the slag S disposed below the inside of the furnace body 1100. More specifically, in the photographing member 6000, when a side having a lens is referred to as one end and the opposite side is referred to as the other end, the photographing member 6000 is installed at an angle such that the height decreases from the other end toward the one end.

[0115] The photographing component 6000 may be installed on each of the two side walls of the furnace body 1100 in one direction X-axis direction. A plurality of photographing components 6000 may be installed on the two side walls of the furnace body 1100 in one direction X-axis direction, and the photographing components 6000 may be arranged in another direction Y-axis direction.

[0116] In addition, the photographing member 6000 may be installed on both side walls of the furnace body 1100 along another direction, that is, the Y-axis direction. Figure 1 One photographing member 6000 is shown installed on each of the side walls of the furnace body 1100 in the Y-axis direction in another direction, but a plurality of photographing members 6000 may be installed. The plurality of photographing members 6000 may be arranged in the X-axis direction in one direction.

[0117] Such a photographing component may include, for example, a three-dimensional scanning camera.

[0118] In the following, reference is made to Figure 4 Explain the spacing between the electrode unit and the raw material pile.

[0119] The electrode unit 2000 is installed so that a part is inserted into the inside of the main body part 1000, and one end thereof is disposed at a predetermined distance above the slag S. When power is applied to the electrode unit 2000, heat is generated by the slag resistance and the arc resistance, thereby heating the slag S. In addition, the raw material pile P loaded or piled on the upper portion of the heated slag S is heated by the heated slag S. m (P cm and P sm )melt.

[0120] At the same time, when the electrode component 2000 and the raw material pile P m (P cm and P sm) contact, an arc may occur unstably when power is applied to the electrode part 2000. Therefore, in the case where the current is unbalanced and flows unevenly through the electrode part 2000, oscillation may occur. When current oscillation occurs, the operation instability of the furnace may be increased, the operation efficiency of the electric furnace equipment may be reduced, or the productivity of the molten metal L may be reduced. For example, problems such as uneven melting of the raw material over time, insufficient melting of the raw material, or prolonged time required to melt the raw material may occur.

[0121] Therefore, when the raw material M is input into the body part 1000, it is necessary to ensure that the electrode part 2000 does not contact the raw material pile. Specifically, the raw material M is input so that the first raw material pile P formed around the electrode part 2000 cm The second raw material pile P sm Set in the first raw material pile P cm , so it does not contact the electrode component 2000.

[0122] The electrode component 2000 and the first raw material pile P cm The fact that there is no contact indicates that the electrode component 2000 and the first raw material pile P cm There is a spacing distance between the electrode component 2000 and the first raw material pile P cm When the electrode component 2000 and the first raw material pile P are spaced apart, cm When power is applied to the electrode part 2000, the exposed surface of the slag S begins to heat up, and the heat gradually diffuses. cm This operation of not contacting the electrode part 2000 and exposing the surface of the slag S around the electrode part 2000 to produce the molten metal L is referred to as an OSBF open slag bath furnace operation.

[0123] The electrode component 2000 and the first raw material pile P cm The spacing distance D between the electrode parts 2000 and the surface area of ​​the slag S exposed around the electrode part 2000 may vary according to the amount of raw materials input into the interior of the body part 1000 through the first input part 3100. That is, the more raw materials are input through the first input part 3100, the larger the first raw material pile P is. cm Therefore, the more raw materials are input through the first input part 3100, the electrode part 2000 and the first raw material pile P cm The smaller the spacing distance D between the electrodes, the smaller the surface area of ​​the slag S exposed around the electrode part 2000. Conversely, the less raw material is fed through the first input part 3100, the smaller the first raw material pile P is. cmTherefore, the less raw material is input through the first input part 3100, the electrode part 2000 and the first raw material stack P cm The larger the spacing distance D therebetween, and thus the larger the surface area of ​​the slag S exposed around the electrode part 2000 .

[0124] Here, the electrode component 2000 and the raw material pile P cm The spacing distance D between them refers to the horizontal spacing distance.

[0125] The electrode component 2000 and the first raw material pile P cm The smaller the spacing distance D between the electrode unit 2000 and the first raw material pile P, the higher the possibility of current oscillation when power is applied to the electrode part 2000. In other words, in the case where the current is not balanced and flows unevenly through the electrode part 2000, oscillation may occur. In addition, due to the increase in the unevenness of the current flowing through the electrode unit 2000, significant oscillation may occur. Conversely, the electrode unit 2000 is spaced apart from the first raw material pile P. cm The wider the distance D, the larger the surface area of ​​the slag S exposed to the outside, which may cause significant heat loss. In addition, the larger the surface area of ​​the exposed slag S, the higher the temperature of the molten metal L, which may cause the refractory material constituting the body part 1000 to erode faster.

[0126] Therefore, it is necessary to expose the surface of the slag S around the electrode part 2000 to an appropriate area. To achieve this, the first raw material pile P is provided around the electrode part 2000. cm The electrode component 2000 must be separated from the electrode component 2000 by an appropriate distance. cm The appropriate spacing distance between the electrode component 2000 and the first raw material pile P may be 0.2 m to 1.0 m. cm The appropriate spacing distance therebetween is not limited to the above-described example and may vary depending on factors such as the area of ​​the body part 1000 and the number of installed input parts.

[0127] Therefore, in this embodiment, during the operation of melting the raw materials in the body part 1000 to produce the molten metal L, the electrode part 2000 is measured to be close to the first raw material pile P. cm and adjusting the input amount of the raw material into the main body part 1000 based on the spacing distance.

[0128] Here, adjusting the input amount of the raw material includes the amount of the raw material input over time. Therefore, adjusting the input amount may also include adjusting the input speed.

[0129] The input control unit 8000 includes a first input control unit 8100, which detects the electrode unit 2000 and the first raw material pile P using the image acquired by the photographing unit 6000. cm and controlling the operation of the first supplying part 4100 based on the detected spacing distance.

[0130] In addition, the input control part 8000 includes a second input control part 8200, and the second input control part 8200 uses the second sensor unit 7200 to communicate with the second raw material pile P sm The spacing distance between the second raw material pile P sm The height of the second raw material pile P sm The operation of the second supplying component 4200 is controlled by the detection height.

[0131] In the following, reference will be made to Figures 1 to 5 The first input control component 8100 is described.

[0132] Figure 5 (a) is a photographic image I obtained from a photographing component according to an exemplary embodiment. s Examples of Figure 5 (b) is to use the photo image I s Generated recognition image I d Instance of .

[0133] Reference Figure 1 and Figure 3 The first input control component 8100 may include: a recognition image generator 8110, wherein the recognition image generator 8110 converts the image acquired from the photographing component 6000 into a “recognition image I” hereinafter. d ”, wherein the electrode component 2000, the first raw material pile P cm and slag S are distinguishable or identifiable; a distance detector 8120, wherein the distance detector 8120 recognizes the image I d The detection electrode component 2000 and the first raw material pile P cm The distance between m ; and a first input controller 8140, the first input controller 8140 based on the detected interval distance D m The operation of the first supplying part 4100 is controlled.

[0134] In addition, the first input control component 8100 may include a first height detector 8130, which uses the first sensor unit 7100 to detect the first raw material pile P. cm The distance between cmTo detect the first raw material pile P cm Height H cm a fault determiner 8150, the fault determiner 8150 detects a fault of the first sensor unit 7100; and a second height detector 8160, if it is determined that the first sensor unit 7100 fails, the second height detector 8160 uses the recognition image I d To detect the first raw material pile P cm Height H cm .

[0135] Here, the first sensor unit 7100 and the first raw material pile P cm The distance between cm Can refer to the vertical spacing distance.

[0136] Hereinafter, the image captured by the capturing component 6000 before being converted by the recognition image generator 8110 will be referred to as a “photo image I”. s ”.

[0137] The photographing component 6000 may photograph the area around the electrode component 2000. More specifically, the photographing component 6000 photographs the area around the electrode component 2000 to obtain a photo image including at least one of the following: s : The electrode component 2000, the cover 1200 around the electrode component 2000, and the first raw material pile P around the electrode component 2000 cm , and slag S, such as Figure 5 Here, the photo image I s The components included in the electrode component 2000, the cover 1200 around the electrode component 2000, the first raw material pile P around the electrode component 2000 cm and the background can be called "objects".

[0138] The recognition image generator 8110 recognizes the photo image I s The recognition image generator 8110 distinguishes and displays the recognized objects to generate a recognition image I d More specifically, the recognition image generator 8110 recognizes the photo image I s The different objects in the electrode assembly include an electrode component 2000, a cover 1200 around the electrode component, a first raw material pile P cm and slag S. The identified electrode component 2000, cover 1200, first raw material pile P are then distinguished and displayed. cm and slag S to generate the recognition image I d ,like Figure 5 as shown in (b).

[0139] Here, distinguishing the recognized objects in the recognition image generator 8110 may include, for example, marking or displaying a line along the outermost portion of each recognized object, hereinafter referred to as an “recognition line”. Figure 5 (b) As an example, the recognition image generator 8110 can respectively identify the electrode component 2000, the cover 1200 around the electrode component, and the first raw material pile P cm The outermost part of the slag S is marked with an identification line L d1 , L d2 , L d3 and L d4 .

[0140] The segmentation technology based on artificial intelligence or deep learning can be used to generate the above-mentioned recognition image I through the recognition image generator 8110. d The segmentation technique is to extract the pixel Pi level from the photo image I s In other words, when you want to know the position, shape, or which pixel Pi belongs to which object, the image I s is segmented and each pixel of the image is labeled.

[0141] The recognition or classification of objects using segmentation techniques in the recognition image generator 8110 may be generated through deep learning. That is, the recognition image generator 8110 may utilize a deep learning model trained with data in which a user or operator has extracted and recognized different objects in a photo image to generate the recognition image I hundreds or even thousands of times. d .

[0142] The distance detector 8120 recognizes the image I d The detection electrode component 2000 and the first raw material pile P cm The distance between m Here, when the recognition image I d A plurality of first raw material piles P are included cm When the distance detector 8120 detects the distance between the electrode component 2000 and the first raw material pile P located closest to or near the electrode component 2000, cm The distance between m The distance detector 8120 also detects the first raw material pile P cm The spacing distance D between the lower portion and one end of the electrode member 2000 is m Here, the first raw material pile P cm The lower part may refer to the first raw material pile P cm The distance detector 8120 may detect the portion or area of ​​the upper portion of the surface of the first raw material pile P that contacts the slag S. More specifically, the distance detector 8120 may detect the portion or area of ​​the upper portion of the surface of the first raw material pile P that contacts the slag S. cmThe spacing distance D between the boundary in contact with the surface of the slag S and one end of the electrode member 2000 is m Here, the recognition image I can be used d One end of the identified electrode component is located at the first raw material pile P cm The number of pixels Pi and the size of each pixel Pi are used to detect the contact between one end of the electrode component 2000 and the first raw material pile P cm The distance between m .

[0143] The distance between one end of the electrode member 2000 detected by the distance detector 8120 and the first raw material pile P cm The distance between m can be transmitted to the first input controller 8140. The first input controller 8140 then detects the interval distance D m Determine a method of inputting raw materials. Here, the method of inputting raw materials may include: a method of maintaining the current amount of raw materials input from the first input part 3100 to the main body part 1000 (first method); a method of reducing the input amount of raw materials from the first input part 3100 (second method); a method of increasing the input amount of raw materials from the first input part 3100 (third method); and a method of stopping the input of raw materials from the first input part 3100 (fourth method).

[0144] Therefore, the first input controller 8140 detects the interval distance D m One of the first to fourth methods described above is selected or determined. For this purpose, a reference interval distance used as a basis for selecting an input method is stored or set in the first input controller 8140. The reference interval distance may include a first reference interval distance D t1 and the second reference interval distance D t2 , the second reference interval distance D t2 Greater than the first reference interval distance D t1 In addition, the reference interval distance may also include a third reference interval distance D t3 , which is less than the first reference interval distance D t1 .

[0145] The first input controller 8140 detects the interval distance D m The distance D from the first reference t1 To the third reference interval distance D t3 Compare to select input method.

[0146] For example, when the detection interval D m Greater than or equal to the first reference interval distance D t1and is less than or equal to the second reference interval distance D t1 , the first input controller 8140 determines that the current raw material input amount from the first input part 3100 to the main body part 1000 will be maintained (first method).

[0147] In another example, when the detected separation distance D m Greater than or equal to the third reference interval distance D t3 and is smaller than the first reference interval distance D t1 , the first input controller 8140 determines that the input amount of the raw material from the first input component 3100 will be reduced (the second method).

[0148] In yet another example, when the detected separation distance D m Exceeding the second reference interval distance D t2 , the first input controller 8140 determines that the input amount of the raw material from the first input component 3100 will increase (third method).

[0149] In another example, when the detected interval distance D m Less than the third reference interval distance D t3 , the first input controller 8140 decides to stop inputting raw materials from the first input component 3100 (the fourth method).

[0150] The determination of the raw material input method for each of the plurality of first input parts 3100 may be performed for each of the plurality of first input parts 3100. That is, a plurality of photographing parts 6000 are provided to photograph the area around each of the plurality of first input parts 3100. In addition, the photograph image I acquired from each imaging unit 6000 s The image is transmitted to the recognition image generator 8110 of the first input control unit 8100. The recognition image generator 8110 generates a plurality of photo images I s The identification image I of each d Next, the distance detector 8120 uses a plurality of recognition images I d In each recognition image I d The detection electrode component 2000 and the first raw material pile P cm The distance between m Therefore, the first input controller 8140 can be based on the detected plurality of interval distances D m To determine the input method of each of the plurality of first input components 3100 .

[0151] When the first input controller 8140 determines the input method (the second method and the third method) by deciding to reduce or increase the input amount of the raw material, the first input controller 8140 determines the input amount of the raw material. That is, when the input amount is reduced or increased compared to the current amount input from the first input part 3100, the first input controller 8140 determines the amount of raw material to be input therethrough. Here, the first input controller 8140 determines the amount of raw material to be input therethrough by utilizing the first raw material pile P as detected by the first sensor unit 7100 and the first height detector 8130. cm The amount of raw material to be input through the first input member 3100 is determined based on the height of the raw material.

[0152] Figure 6 (a) is a diagram illustrating a method of detecting a height of a first raw material pile using a first sensor unit and a first height detector according to an exemplary embodiment.

[0153] In the following, reference will be made to Figure 6 (a) illustrates the detection of the first raw material pile P using the first sensor unit 7100 and the first height detector 8130 according to the embodiment. cm Height H cm method.

[0154] When the first sensor unit 7100 emits electromagnetic waves, the waves are transmitted from the first raw material pile P cm The first sensor unit 7100 is installed so that one end is located at the same height as the lower surface of the cover 1200. In addition, the first sensor unit 7100 is installed at the first raw material pile P cm The first raw material pile P is located at the center portion in the width direction of cm The topmost layer has the highest height at the center in the width direction.

[0155] Since the electromagnetic wave emitted from the first sensor unit 7100 is directed to the first raw material pile P cm The electromagnetic wave emitted by the first sensor unit 7100 is reflected from the center of the top layer in the width direction and thus is reflected away and then returns to the first sensor unit 7100. The first sensor unit 7100 calculates or detects the distance between one end of the first sensor unit 7100 and the first raw material pile P using the time taken for the electromagnetic wave emitted to return after being reflected. cm The distance between cm In other words, the first raw material pile P can be detected cm The spacing distance A between the center in the width direction of the top layer and one end of the first sensor unit 7100 cm Then, the first sensor unit 7100 to be detected is connected to the first raw material pile P cm The distance betweencm Transmitted to the first height detector 8130.

[0156] The first height detector 8130 detects the first raw material pile P by using the first sensor unit 7100 cm The distance between cm and the preset height A of the first sensor unit t To detect the first raw material pile P cm Height H cm Here, the height A of the first sensor unit 7100 is t It may refer to the distance from the surface of the slag S to one end of the first sensor unit 7100. The height A of the first sensor unit 7100 t It may be a measured value of the distance from the surface of the slag S to one end of the first sensor unit 7100. Alternatively, the height A of the first sensor unit 7100 may be t Can be a predetermined and stored value.

[0157] In addition, since one end of the first sensor unit 7100 is installed at the same height as the lower surface of the cover 1200, the height A of the first sensor unit 7100 measured from the surface of the slag S is t It may be the same height as the lower surface of the cover 1200 .

[0158] The first height detector 8130 calculates the height between the first sensor unit 7100 and the first raw material pile P cm The distance between cm and the height A of the first sensor unit 7100 t The difference between t -A cm The calculation result is detected as the first raw material pile P cm Height H cm .

[0159] The first input controller 8140 utilizes the first raw material pile P as detected by the first sensor unit 7100 and the first height detector 8130 cm Height H cm The first input controller 8140 determines the amount of raw material to be input through the first input component 3100. Here, the first input controller 8140 determines the amount of raw material to be input through the first input component 3100 by using the reference height H ct With the first raw material pile P cm Detection height H cm The difference between ct -H cm To determine the amount of raw material to be input.

[0160] In the following, a detailed example is provided for further explanation. For example, when using the recognition image Id The electrode component 2000 and the first raw material pile P cm The distance between m Greater than or equal to the third reference interval distance D t3 But less than the first reference interval distance D t1 , the first input controller 8140 determines to reduce the input amount of the raw material from the first input part 3100 (second method). In addition, the first input controller 8140 then uses the first raw material pile P detected by the first height detector 8130 to cm Height H cm In other words, based on the reference height H ct With the first raw material pile P cm Detection height H cm The difference between ct -H cm Here, the determined input amount of the raw material can be determined to be less than the current input amount, and the height difference H can be used to determine the input amount of the raw material. ct -H cm In other words, the first raw material pile P cm Detection height H cm With reference height H ct The difference between ct -H cm The larger the value is, the smaller the input amount of the determined raw material is. cm Detection height H cm With reference height H ct The difference between ct -H cm The smaller it is, the greater the input amount of raw materials is determined.

[0161] In another example, when using the recognition image I d The electrode component 2000 and the first raw material pile P cm The distance between m Exceeding the second reference interval distance D t2 , the first input controller 8140 determines to increase the input amount of the raw material from the first input part 3100 (third method). In addition, the first input controller 8140 then uses the first raw material pile P detected by the first height detector 8130 to cm Height H cm In other words, based on the reference height H ct With the first raw material pile P cm Detection height H cm The difference between ct -H cmHere, the determined input amount of the raw material can be determined to be greater than the current input amount, and the height difference H ct -H cm In addition, the first raw material pile P detected cm Height H cm With reference height H ct The difference between ct -H cm The larger the first raw material pile P is, the larger the input amount of the determined raw material is. cm Detection height H cm With reference height H ct The difference between ct -H cm The smaller it is, the smaller the input amount of raw materials required.

[0162] Meanwhile, the first sensor unit 7100 is installed closer to the electrode part 2000 and the exposed slag S than the second sensor unit 7200. In addition, the first sensor unit 7100, which is a distance sensor emitting radar or light, is more susceptible to damage by heat than the photographing part 6000. When the first sensor unit 7100 is damaged, it may malfunction, causing the first sensor unit 7100 to be out of alignment with the first raw material pile P. cm The detection interval distance A cm error.

[0163] For example, the first sensor unit 7100 measured by the first sensor unit 7100 is consistent with the first raw material pile P cm The distance between cm In addition, when the result is transmitted to the first height detector 8130, the first raw material pile P detected by the first height detector 8130 cm Height H cm This may indicate that the first raw material pile P cm Height H cm Similar to the height of the surface of the slag S.

[0164] On the contrary, the first sensor unit 7100 measured by the first sensor unit 7100 is consistent with the first raw material pile P cm The distance between cm When the result is transmitted to the first height detector 8130, the first raw material pile P detected by the first height detector 8130 cm Height H cm This may indicate that the first raw material pile P cm的 Height cm Similar height to cover 1200.

[0165] In this case, the first sensor unit 7100 measured by the first sensor unit 7100 and the first raw material pile P cm The distance between cm If it is too large or too small, it may not be used to determine the input amount of raw materials.

[0166] Therefore, the input control part 8000 according to the exemplary embodiment is provided with a fault determiner 8150 capable of judging whether the first sensor unit 7100 fails. The fault determiner 8150 may be based on the first sensor unit 7100 and the first raw material pile P. cm The distance between the measured or detected cm To determine the failure of the first sensor unit 7100.

[0167] For this purpose, the fault determiner 8150 has a fault judgment distance of the first sensor part 7100 stored or set, which is used as a standard for judging the fault. Here, the fault judgment distance may include the first fault judgment distance A e1 and the second fault judgment distance A e2 , the second fault judgment distance A e2 Greater than the first fault judgment distance A e1 .

[0168] When the first sensor unit 7100 detected by the first sensor unit 7100 is aligned with the first raw material pile P cm The distance between cm Greater than or equal to the first fault judgment distance A e1 and is less than or equal to the second fault judgment distance A e2 , the fault determiner 8150 determines that the first sensor unit 7100 operates normally.

[0169] However, when the first sensor unit 7100 detected by the first sensor unit 7100 is aligned with the first raw material pile P cm The distance between cm Less than the first fault judgment distance A e1 Or exceeds the second fault judgment distance A e2 , the fault determiner 8150 determines that the first sensor unit 7100 fails.

[0170] When the fault determiner 8150 determines that the first sensor unit 7100 fails, the second height detector 8160 uses the recognition image I d Detection of the first raw material pile P cm Height. Figure 5 (b), the second height detector 8160 recognizes image I dThe surface of the slag S is detected and the first raw material pile P m The spacing distance between the top layers is used to detect the first raw material pile P. cm Height H cm Here, the first raw material pile P cm Height H cm By using the surface of the slag S and the first raw material pile P cm It is calculated by the number of pixels Pi between the top layers and the size of each pixel Pi.

[0171] When the second height detector 8160 detects the first raw material pile P cm Height H cm Afterwards, the first input controller 8140 generates a first raw material pile P based on the first raw material pile P. cm Detection height H cm Determine the input amount of the raw material. By utilizing the first raw material pile P detected by the second height detector 8160 cm Height H cm The method for determining the input amount of the raw material is similar to that by using the height H detected by the first height detector 8130 cm The method for determining the input amount of raw materials is the same, so its description will be omitted.

[0172] As described above, the first raw material pile P is first measured using the first sensor unit 7100. cm Height H cm , and when it is determined that the first sensor unit 7100 fails, the recognition image I d Measuring the first raw material pile P cm Height H cm This is because the reliability of detecting the height of the raw material pile using the first sensor unit 7100 that emits electromagnetic waves or light is higher than detecting the height of the raw material pile using the image captured by the capturing part 6000. However, since the first sensor unit 7100 is more susceptible to damage by heat than the capturing part 6000, when it is determined that the first sensor unit 7100 has failed, the capturing part 6000 is used to measure the height of the raw material pile.

[0173] As described above, the input amount of the raw material input from the first input part 3100 may be determined for each of the plurality of first input parts 3100. In other words, the first height detector 8130 or the second height detector 8160 detects the plurality of first raw material piles P cm In addition, in the first input controller 8140, a reference height H may be set or stored for each position of the plurality of first input members 3100. ctHere, the reference height H of each position of the first input member 3100 is ct According to the first raw material pile P at each position cm Therefore, the first input controller 8140 can be based on a plurality of first raw material piles P cm The detection height H of each cm To determine the input amount of each of the plurality of first input components 3100. Therefore, the first input controller 8140 may control each of the plurality of supply components 4000 so that the raw material is input according to the determined input method and input amount of each of the plurality of first input components 3100.

[0174] In the above, the electrode component 2000 and the first raw material pile P cm The distance between m to determine the input method of the first input component 3100, and to use the first raw material pile P detected by the first height detector 8130 or the second height detector 8160. cm Height H cm To determine the input quantity.

[0175] However, the method is not limited thereto, and the electrode part 2000 and the first raw material stack P may be used. cm The distance between m To determine both the input method and the input amount. Regarding this, it will be explained below.

[0176] For example, when the detection interval D m Greater than or equal to the third reference interval distance D t3 and is smaller than the first reference interval distance D t1 , the first input controller 8140 determines the input method (second method) as reducing the input amount of the raw material from the first input part 3100. Next, the first input controller 8140 may calculate the detected interval distance D m The distance D from the first reference t1 The difference between m -D t1 Then, using the calculated difference D m -D t1 , determine the input amount of raw materials. Here, the detection interval distance D m The distance D from the first reference t1 The difference between m -D t1 The larger the input amount is, the smaller it is determined to be. Conversely, the detected interval distance D m The distance D from the first reference t1 The difference between m -Dt1 The smaller it is, the larger the input amount is determined to be.

[0177] In another example, when the detected separation distance D m Exceeding the second reference interval distance D t2 , the first input controller 8140 determines the input method (third method) as increasing the input amount of the raw material from the first input part 3100. Then, the first input regulator 8140 calculates the detected interval distance D m The distance D from the second reference t2 The difference between t2 -D m Then, using the calculated difference D t2 -D m , determine the input amount of raw materials. Here, the detection interval distance D m The distance D from the second reference t2 The difference between t2 -D m The larger the input amount is, the larger the input amount is determined to be. Conversely, the detected interval distance D m The distance D from the second reference t2 The difference between t2 -D m The smaller it is, the smaller the input amount is determined to be.

[0178] Reference Figure 1 and Figure 3 The second input control part 8200 may include a third height detector 8210, wherein the third height detector 8210 uses the interval distance A measured by using the second sensor unit 7200. sm To detect the second raw material pile P sm Height H sm and a second input controller 8220, the second input controller 8220 based on the second raw material pile P detected by the third height detector 8210 sm Height H sm To control the operation of the second supply component 4200.

[0179] In the following, reference will be made to Figure 6 (b) illustrates the detection of the second raw material pile P using the second sensor unit 7200 and the third height detector 8220 according to the embodiment. sm Height H sm method.

[0180] Figure 6 (b) is a diagram illustrating a method of detecting a height of a second material pile using a second sensor unit and a third height detector according to an exemplary embodiment.

[0181] The second sensor unit 7200 measures the distance in the same manner as the first sensor unit 7100, with the only difference being its installation position. That is, when the second sensor unit 7200 emits electromagnetic waves, the waves are transmitted from the second raw material pile P sm The second sensor unit 7200 is installed so that one end thereof is located at the same height as the lower surface of the cover 1200. In addition, the second sensor unit 7200 is installed at the second raw material pile P sm The second raw material pile P is located at the center portion in the width direction of sm The center of the top layer in the width direction is the highest point.

[0182] The electromagnetic waves emitted from the second sensor unit 7200 may be directed to the second raw material pile P sm The second sensor unit 7200 calculates or detects the distance between one end of the second sensor unit 7200 and the second raw material pile P using the time taken for the emitted electromagnetic wave to return after being reflected. sm The distance between sm In other words, it detects the second raw material pile P sm The spacing distance A between the center portion in the width direction of the topmost layer and one end portion of the second sensor unit 7200 is sm Then, the second sensor unit 7200 is connected to the first raw material pile P sm The detection interval distance A sm Transmitted to the third height detector 8210.

[0183] The third height detector 8210 uses the second sensor unit 7200 to detect the second raw material pile P sm The distance between sm and the preset height A of the second sensor unit t To detect the second raw material pile P sm Height H sm Here, the height A of the second sensor unit t The height A of the first sensor unit 7100 may be t same.

[0184] The third height detector 8210 calculates the height between the second sensor unit 7200 and the second raw material pile P sm The distance between sm The height A of the second sensor unit 7200 t The difference between t -A sm The calculation result is then also detected as the second raw material pile P smHeight H sm .

[0185] The second input controller 8220 uses the second raw material pile P detected by the second sensor unit 7200 and the third height detector 8210 sm Height H sm to determine the input method and input amount at the second input part 3200. For this purpose, in the second input controller 8220, a reference height may be set or stored, which serves as a basis for determining the input method and input amount.

[0186] Here, the reference height may include a first reference height H st1 , the second reference height H st2 and the third reference height H st3 , the second reference height H st2 Greater than the first reference height H st1 , the third reference height H st3 Greater than the second reference height H st2 .

[0187] The raw material input method may include: maintaining the current input amount of raw materials from the second input component 3200 to the main component 1000 (first method); reducing the input amount of raw materials from the second input component 3200 (second method); increasing the input amount of raw materials from the second input component 3200 (third method); or stopping the input of raw materials from the second input component 3200 (fourth method).

[0188] Therefore, the second input controller 8220 is based on the second raw material pile P sm Detection height H sm To determine or select one of the first method to the fourth method. That is, the second input controller 8220 sets the first reference height H st1 To the third reference height H st3 With the second raw material pile P sm Detection height H sm Make a comparison and choose the input method accordingly.

[0189] For example, when the second raw material pile P sm Detection height H sm Greater than or equal to the first reference height H st1 and is less than or equal to the second reference height H st2 When the second input controller 8220 decides to maintain the current input amount of the raw material input from the side first input component 3100 to the main body component 1000 (first method).

[0190] In another example, when the second raw material pile P smDetection height H sm Exceeding the second reference height H st2 But less than or equal to the third reference height H st3 , the second input controller 8220 decides to reduce the input amount of the raw material from the second input component 3200 (the second method).

[0191] In yet another example, when the second raw material pile P sm Detection height H sm Less than the first reference height H st1 When , the second input controller 8220 determines that the input amount of the raw material from the second input component 3200 will be increased (the third method).

[0192] In yet another example, when the second raw material pile P sm Detection height H sm When the third reference height is exceeded, the second input controller 8220 determines to stop inputting the raw material from the second input part 3200 (fourth method).

[0193] When the second input controller 8220 determines the input method (the second method and the third method) by deciding to reduce or increase the input amount of the raw material, the second input controller 8220 determines the input amount of the raw material. That is, when the input amount is reduced or increased compared to the current amount of the raw material input from the second input part 3200, the second input part 3200 determines the amount of the raw material to be input therethrough. In other words, the second input controller 8220 determines the amount of the raw material to be input therethrough by using the first reference height H st1 and the second reference height H st2 With the second raw material pile P sm Height H cm The difference between the two determines the input amount of raw materials.

[0194] In the following, a detailed example is provided for further explanation. For example, when the second raw material pile P sm Detection height H sm Exceeding the second reference height H st2 But less than or equal to the third reference height H st3 , the second input controller 8220 determines to reduce the input amount of the raw material from the second input part 3200 (second method). In addition, the second input controller 8220 then uses the second reference height H st2 With the second raw material pile P sm Detection height H sm Here, the determined raw material input amount is determined to be smaller than the current input amount, and it utilizes the height difference H st2 -H sm The second raw material pile Psm Detection height H sm With the second reference height H st2 The greater the difference between the two, the smaller the input amount of the raw material is determined to be. sm Detection height H sm With the second reference height H st2 The difference between st2 -H sm The smaller it is, the greater the input amount of raw materials is determined.

[0195] In another example, when the second raw material pile P sm Detection height H sm Less than the first reference height H st1 , the second input controller 8220 decides to increase the input amount of the raw material from the second input component 3200 (third method). In addition, the second input controller 8220 then uses the first reference height H st1 With the second raw material pile P sm Detection height H sm Here, the determined input amount of the raw material is set to be greater than the current input amount, and it utilizes the height difference H st1 -H sm The second raw material pile P sm Detection height H sm With the first reference height H st1 The difference between st2 -H sm The larger the value is, the larger the input amount of the raw material is determined to be. sm Detection height H sm With the second reference height H st2 The difference between st2 -H sm The smaller it is, the smaller the input amount of raw materials is determined to be.

[0196] The method of adjusting the input amount of the raw material from the second input part 3200 by the second input control part 8200 as described above can be applied to each of the plurality of second input parts 3200. That is, the second input control part 8200 can control the operation of each of the plurality of second supply parts 4200 using the same method as described above. More specifically, since the plurality of second sensor units 7200 are provided, the plurality of second raw material piles P can be detected. sm In addition, the first reference height H may be set or stored in the second input controller 8220 for each position of the plurality of second input components 3200. st1 To the third reference height H st3Here, the first reference height H of each position of the second input member 3200 is st1 To the third reference height H st3 According to the second raw material pile P at each position sm Therefore, the second input controller 8220 can use a plurality of second raw material piles P sm The detection height H of each sm The input method and input amount of each of the plurality of second input components 3200 are determined. Therefore, the second input controller 8220 may control each of the plurality of second supply components 4200 so that the raw material is input based on the input method and input amount determined for each of the plurality of second input components 3200.

[0197] As such, in the exemplary embodiment, the operation of the first supplying member is controlled by the spacing distance between the electrode member and the first raw material pile. In addition, the operation of the second supplying member is controlled by the height of the second raw material pile.

[0198] Therefore, the input control part 8000 according to the embodiment can be described as separately or independently controlling the first supply part 3100 and the second supply part 3200. In addition, due to the electrode part 2000 and the first raw material pile P m The distance between m to control the first supply component 3100, and based on the second raw material pile P s The input control part 8000 controls the second supply part 3200 based on the height of the electrode part 2000 and the first raw material pile P accumulated around the electrode part 2000. cm The distance between m to control the input of raw materials into the main component 1000, and can be described as using different spacing distances D m The data is used to control the input of the raw material (which is input closer to the inner wall of the main body part 1000 than the electrode part 2000).

[0199] In the above embodiment, the electric furnace apparatus in which the electrode part 2000 is provided at the center in the X-axis direction of the body part 1000 is described as an example.

[0200] However, it is not limited thereto, and the electrode component 2000 can be installed in various positions inside the main body component 1000. For example, the electrode component 2000 can be installed to one side of the main body component 1000, biased to one side of the X-axis direction. In addition, the electrode component 2000 can be installed at both sides of the center in the X-axis direction. In another example, the electrode component 2000 can be installed in the central part of the Y-axis direction of the main body component 1000, or biased to one side of the Y-axis direction, or installed on both sides of the center in the Y-axis direction.

[0201] In addition, the first input part 3100 may be installed around the electrode part 2000, the electrode part 2000 may be installed at various positions, and the second input part 3200 may be installed outside the first input part 3100 so that it is located farther from the electrode part 2000 than the first input part 3100. Therefore, the positions of the first input part 3100 and the second input part 3200 may vary according to the position of the electrode part 2000. Therefore, the positions of the first input part 3100 and the second input part 3200 may vary according to the position of the electrode part 2000.

[0202] Figure 7 is a flowchart illustrating a method of inputting a raw material into a body part using a first input control part according to an exemplary embodiment.

[0203] In the following, reference will be made to Figures 1 to 7 The operation of an electric furnace device according to an exemplary embodiment is described, which includes a process of inputting raw materials into a main body part using a first input control part. Here, the description overlapping with the above will be omitted or briefly described. Next, an example will be provided in which the electrode part 2000 is arranged at the center part in the X-axis direction of the main body part 1000. In addition, an example will be provided in which the height of the first raw material pile is used to determine the input amount of the raw material.

[0204] In order to manufacture the molten metal L, the raw material is input into the interior of the main body part 1000 using the plurality of input parts 3000 (3100 and 3200) (S100). That is, by opening the control members 4120 and 4220 of each of the plurality of supply parts 4000 (4100 and 4200), the raw material from the storage parts 5100 and 5200 is transferred to the input parts 3000 (3100 and 3200) through the transmission members 4110 and 4120. Therefore, the raw material M is input into the interior of the main body part 1000 through the input parts 3000 (3100 and 3200). Here, the raw material M may include, for example, direct reduced iron DRI. In addition, the reducing agent may be input into the main body part 1000 through a path different from the path of the input parts 3000 (3100 and 3200), and the reducing agent may be, for example, a gas including hydrogen.

[0205] Then, power is supplied to the electrode part 2000. Therefore, the electrode part 2000 generates heat energy inside the body part 1000 by causing resistance and arc resistance from the slag S. Therefore, the slag S inside the body part 1000 is heated, and the heated slag S melts the raw material, thereby generating molten metal.

[0206] When the molten metal L is generated, the interior of the main body part 1000 is photographed using the photographing part 6000 (S210). Figure 5 The photo image I shown in (a) s The photographic image I acquired by the photographing component 6000 s Transmitted to the recognition image generator 8110 of the first input controller 8100.

[0207] The recognition image generator 8110 recognizes the photo image I s The objects included in and different from each other to generate the recognition image I d (S220). Specifically, the recognition image generator 8110 recognizes the photo image I s The objects included in the electrode component 2000, the cover 1200 around the electrode component 2000, the first raw material pile P around the electrode component 2000 cm , and slag S. Then, the recognition image generator 8110 identifies the electrode part 2000, the cover 1200 around the electrode part 2000, and the first raw material pile P around the electrode part 2000. cm , and the outer boundary mark or display identification line L of the slag S d1 , L d2 , L d3 and L d4 , thus generating a line including the identification line L d1 , L d2, L d3 and L d4 The identification image Id.

[0208] When the recognition image I is generated d When the image is identified, it is transmitted to the distance detector 8120. Then the distance detector 8120 recognizes the image I d The upper detection electrode component 2000 and the first raw material pile P cm The distance between m (S230). That is, the distance detector 8120 detects the first raw material pile P cm The spacing distance D between the lower portion and one end of the electrode member 2000 is m More specifically, the distance detector 8120 can detect the first raw material pile P cm The distance between the boundary in contact with the surface of the slag S and one end of the electrode part 2000 .

[0209] When it is detected that the electrode component 2000 is aligned with the first raw material pile P cm The distance between m When the first input controller 8140 detects the interval distance D m Determine the raw material input method. In other words, the first input controller 8140 may select one of the following methods: maintain the current input amount of the raw material from the first input component 3100 (first method); reduce the input amount of the raw material from the first input component 3100 (second method); increase the input amount of the raw material from the first input component 3100 (third method); or stop the input of the raw material from the first input component 3100 (fourth method).

[0210] For this purpose, the first input controller 8140 may first detect the interval distance D m The first reference distance D t1 and the second reference distance D t2 Compare (S310). When the detected interval distance D m Greater than or equal to the first reference interval distance D t1 and is less than or equal to the second reference interval distance D t2 When (S310->Yes), the first input controller 8140 selects the first method, which will maintain the current input amount of the raw material from the first input component 3100 (S410).

[0211] However, when the detection interval D m is not greater than or equal to the first reference interval distance D t1 and is less than or equal to the second reference interval distance D t2When (S310->No), the detected interval distance D m The distance is compared with the reference distance again ( S320 and S330 ).

[0212] For example, the first input controller compares the detected separation distance D m Is it less than the first reference distance D? t1 (S320). When the detected interval distance D m Less than the first reference distance D t1 When (S320->Yes), it is further compared with a distance less than the first reference distance D t1 The third reference distance D t3 Compare (S330). When the detected interval distance D m Less than the third reference distance D t3 When (S330->Yes), the first input controller 8140 decides to stop inputting raw materials from the first input component 3100 (fourth method) (S420). In this case, the first input controller 8140 can operate the first control member 4120 to ensure that no more raw materials are discharged from the first input component 3100.

[0213] However, when comparing the detection interval D m Is it less than the first reference interval distance D? t1 In step (S320), when the detected interval distance D is determined m Not less than the first reference interval distance D t1 (S320->No), this means that the detected interval distance D m Exceeding the second reference interval distance D t2 (D m >D t2 ). When the detection interval distance D m Determined to exceed the second reference interval distance D t2 When (S320->No), the first input controller 8140 determines a third method, which increases the input amount of the raw material from the first input component 3100 (SS0).

[0214] In another example, when determining the detected separation distance D in step S330, m Not less than the third reference interval distance D t3 When (S330->No), the detected interval distance D can be determined. m Greater than or equal to the third reference interval distance D t3 and is smaller than the first reference interval distance D t1 When the detection interval distance D m is determined to be greater than or equal to the third reference interval distance D t3and is smaller than the first reference interval distance D t1 (S330->No), the first input controller 8140 determines a second method which reduces the input amount of the raw material from the first input component 3100 (S430).

[0215] The detection interval distance D m The distance D from the first to the third reference interval t1 , D t2 and D t3 The order of comparison is not limited to the above-described example, and various comparison orders may be used.

[0216] When the method of reducing or increasing the input amount of the raw material is determined, the first input controller 8140 determines the amount of the raw material to be input through the first input part 3100. To this end, the first sensor unit 7100 emits electromagnetic waves into the body part 1000 and detects the first sensor unit 7100 and the first raw material pile P. cm The distance between cm (S510) The first sensor unit 7100 is connected to the first raw material pile P cm The distance between cm First, it is transmitted to the fault determiner 8150. The fault determiner 8150 detects the interval distance A cm Determine the distance A from the first fault e1 and the second fault determination distance A e2 A comparison is made to determine whether the first sensor unit 7100 fails (S520).

[0217] Here, the first sensor unit 7100 and the first raw material pile P cm The distance between cm Greater than or equal to the first fault determination distance A e1 and is less than or equal to the second fault determination distance A e2 , the fault determiner 8150 determines that the first sensor unit 7100 is operating normally (S520->Yes). Then, the first height detector 8130 detects the distance A from the first sensor unit 7100 based on the detection interval. cm Calculate the first raw material pile P cm Height H cm (S531).

[0218] The first raw material pile P detected by the first height detector 8130 cm Height H cm is transmitted to the first input controller 8140, and the first input controller 8140 calculates the first raw material pile P cm Detection height H cm With reference height Hct The difference between ct -H cm (S540).

[0219] Using this height difference H ct -H cm , the first input controller 8140 determines the amount of raw material to be input into the body part 1000 through the first input part 3100. In other words, it determines the input amount of the raw material. For example, when the second method is determined to reduce the input amount of the raw material, the first input controller 8140 determines the amount of raw material to be input into the body part 1000 based on the calculated height difference H ct -H cm The input amount is calculated to reduce the raw material input compared to the current amount. Then the first input controller 8140 can operate the first supply unit 4100 to input the raw material in the determined amount. Therefore, the raw material is input to the main body part 1000 through the first input part 3100 in the determined input amount (S100).

[0220] In another example, when the third method is determined to increase the input amount of the raw material, the first input controller 8140 increases the input amount of the raw material based on the calculated height difference H. ct -H cm The input amount is determined to increase the raw material input. Then the first input controller 8140 can operate the first supply unit 4100 to input the raw material in the determined amount. Therefore, the raw material is input into the main body part 1000 through the first input part 3100 in the determined input amount (S100).

[0221] In addition, in step S520, when the first sensor unit 7100 is in contact with the first raw material pile P cm The distance between cm Less than the first fault determination distance A e1 Or exceeds the second fault determination distance A e2 , the fault determiner 8150 determines that the first sensor unit 7100 fails (S520->No). In this case, the second height detector 8160 uses the recognition image I d Detection of the first raw material pile P cm Height H cm (S532). The first raw material pile P cm Detection height H cm Used to determine the input amount of raw materials in the same way as before.

[0222] Adjusting the input amount of the raw material from the first input part 3100 by the first input control part 8100 as described above is applicable to each of the plurality of first input parts 3100. That is, the first input control part 8100 controls the operation of each of the plurality of first supply units 4100 in the same manner as described above.

[0223] For more specific description, a plurality of photographing units 6000 are provided, and each of the plurality of first input units 3100 is photographed. In addition, the photograph image I acquired from each imaging unit 6000 is s The image is transmitted to the recognition image generator 8110 of the first input control unit 8100. The recognition image generator 8110 generates a plurality of photo images I s Each of the generated recognition images I d Next, the distance detector 8120 uses a plurality of recognition images I d In each recognition image I d The detection electrode component 2000 and the first raw material pile P cm The distance between m Therefore, the first input controller 8140 can be based on the detected plurality of interval distances D m The input method of each of the plurality of first input members 3100 is determined. In addition, the first height detector 8130 or the second height detector 8160 detects the plurality of first raw material piles P cm Therefore, the first input controller 8140 can be based on the plurality of first raw material piles P cm The detection height H of each cm The input amount of each of the plurality of first input components 3100 is determined. Therefore, the first input controller 8140 may control each of the plurality of supply components 4000 so that the raw material is input according to the input method and input amount determined for each of the plurality of first input components 3100.

[0224] Figure 8 is a flowchart illustrating a method of inputting a raw material into a body part using a second input control part according to an exemplary embodiment.

[0225] In the following, reference will be made to Figures 1 to 6 and Figure 8 The operation of the electric furnace device according to an exemplary embodiment is described, which includes a process of inputting raw materials into the main body part using the second input control part. Figure 7 Description of the overlap.

[0226] By inputting raw materials into the interior of the body part 1000 using the plurality of first input parts 3100 and second input parts 3200 (S10) to produce molten metal L, the second sensor unit 7200 emits electromagnetic waves into the interior of the body part 1000 and detects the second sensor unit 7200 and the second raw material pile P. sm The distance between sm (S20). Next, the third height detector 8210 may use the detection interval distance A from the second sensor unit 7200. sm To detect the second raw material pile P sm Height H cm (S30).

[0227] When the second raw material pile P is detected sm Height H cm When the second input controller 8220 uses the second raw material pile P sm Detection height H cm In other words, the second input controller 8220 determines one of the following methods: maintaining the current input amount of the raw material from the second input component 3200 to the main body component 1000 (first method); reducing the input amount of the raw material from the second input component 3200 (second method); increasing the input amount of the raw material from the second input component 3200 (third method); or stopping the input of the raw material from the second input component 3200 (fourth method).

[0228] To this end, the second input controller 8220 firstly places the second raw material pile P sm Detection height H cm With the first reference height H st1 and the second reference height H st2 Compare (S41). sm Detection height H cm Greater than or equal to the first reference height H st1 and is less than or equal to the second reference height H st2 When (S310->Yes), the second input controller 8220 determines that the input amount of the raw material currently input from the second input part 3200 should be maintained (S51).

[0229] However, if the second raw material pile P sm Detection height H sm Not equal to or greater than the first reference height H st1 and is not equal to or less than the second reference height H st2 (S41->No), then the second raw material pile P is piled up again. sm Detection height H smCompare with the reference height (S42 and S43).

[0230] For example, first, the second raw material pile P sm Detection height H sm With the first reference height H st1 Compare (S42). sm Detection height H sm Less than the first reference height H st1 When (S42->Yes), the second input controller 8220 calculates the first reference height H st1 With the second raw material pile P sm Height H sm The difference between st1 -H sm (S52). Then, the second input controller 8220 determines the input method of the raw material as the third method, which increases the input amount of the raw material from the second input part 3200 (S53). In this case, the second input controller 8220 uses the first reference height H st1 With the second raw material pile P sm Height H sm The difference between st1 -H sm In other words, the second input controller 8220 determines the input amount of the raw material based on the calculated height difference H st1 -H sm The input amount is determined so that the raw material input increases compared to the current amount. In addition, the second input controller 8220 operates the second supply unit 4200 so that the raw material is input in a determined amount. Therefore, the raw material is input into the interior of the main body part 1000 in a determined amount through the second input part 3200 (S100).

[0231] However, when the second raw material pile P sm Detection height H sm Not less than the first reference height H st1 When (S42->No), the second raw material pile P sm Height H sm With the second reference height H st2 and the third reference height H st3 In other words, determine the second raw material pile P sm Detection height H sm Whether it exceeds the second reference height H st2 and is less than or equal to the third reference height H st3 (S43). When the second raw material pile P sm Detection height H sm Exceeding the second reference height H st2and is less than or equal to the third reference height H st3 When (S43->Yes), the second input controller 8220 calculates the second reference height H st2 With the second raw material pile P sm Height H sm The difference between st2 -H sm (S54). Then, the second input controller 8220 determines the input method as the second method, which reduces the input amount of the raw material from the second input part 3200 (S55). Here, the second input controller 8220 uses the second reference height H st2 With the second raw material pile P sm Height H sm The difference between st2 -H sm In other words, the second input controller 8220 determines the input amount of the raw material based on the calculated height difference H st2 -H sm The input amount is determined so that the raw material input is reduced compared to the current amount. In addition, the second input controller 8220 then operates the second supply unit 4200 so that the raw material is input in the determined amount. Therefore, the determined amount of raw material is input to the main body part 1000 through the second input part 3200 (S100).

[0232] In step S43, when the second raw material pile P sm Detection height H sm Exceeding the second reference height H st2 and not less than or equal to the third reference height H st3 This means that the second raw material pile P sm Height H sm Exceeding the third reference height H st3 (S43->No). In this case, the second input controller 8220 determines the input method as the fourth method, which stops the input of raw materials from the second input part 3200 (S56). The second input controller 8220 then operates the first control member 4120 to ensure that no more raw materials are discharged from the first input part 3100.

[0233] The method of controlling the input amount of the raw material from the second input part 3200 by the second input control part 8200 as described above is applied to each of the plurality of second input parts 3200. In other words, the second input control part 8200 controls the operation of each of the plurality of second supply units 4200 in the same manner as described above. More specifically, since the plurality of second sensor units 7200 are provided, the plurality of second raw material piles P can be detected. sm The height H of each smTherefore, the second input controller 8220 can be configured to utilize a plurality of second raw material piles P sm Detection height H sm The input method and input amount of each of the plurality of second input components 3200 are determined. Therefore, the second input controller 8220 may control each of the plurality of second supply units 4200 to input the raw material according to the input method and input amount determined for each of the plurality of second input components 3200.

[0234] According to an exemplary embodiment, the distance D between the electrode unit 2000 and the raw material pile may be detected. m Based on the detection distance D between the electrode unit 2000 and the raw material pile m , the raw material input can be controlled. This prevents the electrode unit 2000 from contacting the raw material pile. Therefore, when power is applied to the electrode unit 2000, the current oscillation in the electrode unit 2000 can be prevented. In other words, when power is applied to the electrode component 2000, a uniform current can flow through the electrode component 2000. Therefore, the raw material can be heated uniformly, which realizes uniform operation. In addition, it can prevent problems such as the operating rate of the electric furnace equipment and the productivity of the molten metal from being reduced due to oscillation. Therefore, the operating rate of the electric furnace equipment and the productivity of the molten metal can be improved.

[0235] In addition, the electrode unit and the raw material pile can be adjusted to be spaced apart from each other by a predetermined distance, thereby allowing the slag to be exposed to an appropriate area. Therefore, heat loss and erosion of refractory materials caused by the exposed slag can be suppressed or prevented.

[0236] In addition, the heights of the plurality of raw material piles may be detected, and the input of the raw material may be controlled according to the detected heights. Therefore, each of the plurality of raw material piles disposed inside the body part 1000 may be disposed to a target height.

[0237] Industrial Applicability

[0238] Therefore, according to an exemplary embodiment, the spacing distance between the electrode component and the raw material pile can be detected. In addition, the input of the raw material can be controlled according to the detection spacing distance between the electrode component and the raw material pile. This can prevent the electrode component from contacting the raw material pile. Therefore, when power is applied to the electrode component, current oscillation can be prevented from occurring at the electrode component. Therefore, a uniform current can flow through the electrode component. Therefore, the raw material can be uniformly heated, which realizes uniform operation. In addition, it can prevent problems such as the operating rate of the electric furnace equipment and the productivity of the molten metal from being reduced due to oscillation. Therefore, the operating rate of the electric furnace equipment and the productivity of the molten metal can be improved.

Claims

1. An electric furnace device, comprising: A main body component having an internal space capable of processing raw materials; an electrode member installed to be inserted into the internal space of the body member; an input component installed in the main body component so as to be able to input the raw material into the internal space of the main body component; a photographing member installed in the main body member so as to be able to photograph an area around the electrode member in the internal space of the main body member; and an input control unit for detecting a spacing distance (D) between the electrode unit and a raw material pile generated by the raw material accumulated around the electrode unit by using the photographic image acquired by the photographing unit; m ), and according to the detection interval distance (D m ) to control the input of the raw material from the input component to the main component.

2. The electric furnace apparatus according to claim 1, further comprising a supply part configured to supply the raw material to the input part and connected to the input part to adjust the amount of the raw material supplied to the input part, The input control component is configured to detect the separation distance (D m ) to control the operation of the supply component.

3. The electric furnace equipment according to claim 1 or 2, wherein the input control component is configured to adjust the input voltage according to the spacing distance (D m ) to control the input of the raw material into the main body component, and utilize the spacing distance (D m ) different data is used to control the input of the raw material which is input closer to the inner wall of the main body part than to the electrode part.

4. The electric furnace device according to claim 3, wherein the main body component comprises: A furnace body having the inner space; and a cover configured to cover an upper portion of the furnace body, The electrode member and the input member are installed to pass through the cover in a vertical direction, and the photographing member is installed to a side wall of the furnace body to photograph the inner space of the main body member.

5. The electric furnace apparatus according to claim 4, wherein a hole is defined passing through the side wall of the furnace in a thickness direction, the photographing component is installed to be inserted into the hole, a transmission window is installed to one end of the hole facing the inner surface of the furnace body, and the photographing component is installed to face the window. 6 . The electric furnace apparatus according to claim 4 , wherein the photographing member is installed obliquely such that a height thereof decreases toward an end facing the internal space.

7. The electric furnace apparatus according to claim 4, wherein the input component comprises: a first input member installed to be disposed around the electrode member; and a second input member installed outside the first input member so as to be farther from the electrode member than the first input member, The photographing means is installed to obtain a photographic image including a first raw material pile and the electrode member generated by inputting the raw material inputted into the interior of the body member from the first input means.

8. The electric furnace equipment according to claim 7, wherein the supply component comprises: a first supply component configured to supply the raw material to the first input component; and a second supply component configured to supply the raw material to the second input component, The input control component includes: a first input control unit configured to detect the spacing distance (D) between the electrode unit and the first raw material pile by using the photograph image; m ), thereby using the detection interval distance (D m ) to control the operation of the first supply component; and A second input control component is configured to control the operation of the second supply component.

9. The electric furnace apparatus according to claim 8, wherein the first input control component comprises: an identification image generator configured to identify the electrode component and the first raw material pile in the photograph image to generate an identification image in which the identified electrode component and the first raw material pile are distinguished from each other; a distance detector configured to detect the spacing distance (D) between the electrode component and the first raw material pile by using the recognition image; m ); and a first input controller configured to generate a first input signal based on the separation distance (D m ) to control the operation of the first supply component, The first input controller is determined by using the detected separation distance (D m ) and a preset reference interval distance to determine the method of inputting the raw material from the first input component as one of maintaining, increasing and decreasing the input amount or stopping the input.

10. The electric furnace apparatus according to claim 9, further comprising a first sensor unit provided at one side of the first input part to detect a spacing distance between the first raw material pile and the cover, wherein the first input control component includes a first height detector configured to detect a height (H) of the first raw material pile by utilizing the spacing distance between the first raw material pile and the cover detected by the first sensor unit. cm ),as well as The first input controller is configured to, when determining the input method of the first input member as one of an increase and a decrease in input amount, calculate the input amount by using the height (H) of the first raw material pile. cm ) to determine the input amount of the raw material to be input through the first input component.

11. The electric furnace apparatus according to claim 9, wherein the first input control component comprises a second height detector configured to detect a height (H) of the first raw material pile by using the recognition image. cm ),as well as The first input controller is configured to, when determining the input method of the first input member as one of an increase and a decrease in input amount, calculate the input amount by using the height (H) of the first raw material pile. cm ) to determine the input amount of the raw material to be input through the first input component.

12. The electric furnace apparatus according to claim 9, wherein the first input controller is configured to, when the input method of the first input component is determined as one of an increase and a decrease in input amount, detect the interval distance (D m ) and a reference spacing distance to determine an input amount of the raw material to be input through the first input component.

13. The electric furnace apparatus according to claim 8, further comprising a second sensor unit provided at one side of the second input part to detect a spacing distance between a second raw material pile generated by the raw material inputted from the second input part into the inside of the main body part and the cover, The second input control component comprises: a third height detector configured to detect a height (H) of the second raw material pile by using the spacing distance between the second raw material pile and the cover detected by the second sensor unit; sm ); and a second input controller configured to control the operation of the second supply component so as to adjust the height (H) of the second raw material pile based on the detected height (H) of the second raw material pile; sm ) to control whether or not to input the raw material or at least one of the input amount of the raw material from the second input component.

14. A method of producing molten metal, the method comprising: Input raw materials into the electric furnace; supplying power to an electrode member disposed in the electric furnace to melt the raw material; photographing the interior of the electric furnace to obtain a photographic image including the electrode component and a pile of raw materials accumulated around the electrode component; By using the photographic image, the spacing distance (D m ); as well as By using the detected spacing distance (D m ) to control the input of the raw material around the electrode component.

15. The method according to claim 14, wherein the spacing distance (D m ) include: recognizing the electrode component and the raw material pile in the photograph image to generate an identification image, by which the recognized electrode component and the raw material pile are distinguished from each other; as well as Detecting the spacing distance (D) between the electrode component identified by the identification image and the raw material pile m ).

16. The method of claim 15, wherein the controlling of the input of the raw material around the electrode component comprises: Based on the detected spacing distance (D m ) to determine the input method as one of maintaining, increasing and decreasing the input amount and stopping the input; as well as The raw material is fed around the electrode component according to the determined feeding method.

17. The method according to claim 16, further comprising detecting the height of the raw material, wherein when the input method is determined as one of an increase and a decrease in input amount in the determination of the input method, the control of the input of the raw material input around the electrode member includes determining the input amount of the raw material by utilizing the detected height of the raw material pile, and In the input of the raw material based on the determined input method, the determined input amount of the raw material is input.

18. The method of claim 17, wherein the detecting of the height of the raw material pile comprises: emitting electromagnetic waves or light to the raw material pile by using a sensor unit disposed above the raw material pile to detect a spacing distance between the sensor unit and the raw material pile; as well as The height (H) of the raw material pile is detected by using the detected spacing distance between the sensor unit and the raw material pile. cm ).

19. The method according to claim 18, further comprising determining a failure of the sensor unit, wherein the determination of the fault of the sensor unit includes comparing the detected interval distance between the sensor unit and the raw material pile with a predetermined fault determination distance to determine the fault of the sensor unit, When it is determined that the failure of the sensor unit occurs, the height (H cm ) includes detecting the height (H) of the raw material pile identified on the identification image. cm ).

20. The method according to claim 16, wherein when the input method is determined as one of an increase and a decrease in input amount in the determination of the input method, the control of the input of the raw material input around the electrode member includes controlling the input of the raw material by utilizing the detected spacing distance (D m ) and the preset reference interval distance to determine the input amount of raw materials, In the input of the raw material based on the determined input method, a determined amount of the raw material is input.

21. The method according to claim 14, further comprising detecting a spacing distance (D m ) different data to input the raw material to a portion closer to the inner wall of the electric furnace than the electrode part.

22. The method according to claim 21, further comprising: Detect the height (H) of the second raw material pile formed in the electric furnace. sm ), the second raw material pile is farther from the electrode component than the first raw material pile, the first raw material pile being a raw material pile stacked around the electrode component; Detecting a height (H) of the second raw material pile provided in the electric furnace which is farther from the electrode member than the first raw material pile sm ); By using the detected height (H) of the second raw material pile sm ) and a preset reference height to determine the input method as one of maintaining, increasing and decreasing the input amount and stopping the input; as well as By using the detected height (H) of the second raw material pile sm ) and the reference height to determine the input amount of the raw material, The step of inputting the raw material to a position farther from the electrode component than the first raw material pile includes inputting the raw material to a position farther from the electrode component than the first raw material pile based on a height (H sm ) to input the raw materials according to the input method and input amount determined by the manufacturer.

23. A method according to any one of claims 14 to 22, wherein the raw material comprises hydrogen direct reduced iron reduced by hydrogen.

Images