Self-carrying automatic feeding device of submerged arc furnace

Abstract

The invention relates to the technical field of submerged arc furnace automatic feeding equipment, in particular to a submerged arc furnace self-carrying automatic feeding device which comprises a walking device, a feeding control mechanism is arranged on the walking device, and a support is arranged on the feeding control mechanism. A feeding system, a feeding power mechanism and a distribution nozzle control mechanism are arranged on the bracket; the feeding control mechanism, the feeding system, the feeding power mechanism and the material distribution nozzle control mechanism are electrically connected with the walking device respectively; the feeding system comprises a stock bin, a feeding groove and a material distribution nozzle, the feeding groove is connected with a feeding power mechanism, and the material distribution nozzle is connected with a material distribution nozzle control mechanism. The invention aims to provide the self-carrying material automatic feeding device of the submerged arc furnace, which realizes the uniformity and continuity of mixture conveying and the convenience of feeding while omitting a mixture feeding section, and ensures the material distribution requirement of a triangular area of a hearth in the feeding process.

Description

Technical Field

[0001] The invention relates to the technical field of charging equipment for submerged arc furnaces, and in particular to an automatic charging device for submerged arc furnaces with self-contained materials. Background Art

[0002] The traditional method of charging a submerged arc furnace is manual charging. When the mixed material is transported to the furnace, the ore is manually added with a shovel. The heavier ore is thrown far away, while the lighter and powdery ore is burned near the surface. During the charging process, some powdery ore is also pulled away by the chimney and burned in the air. This often results in carbon shortages and partial misalignment in the furnace triangular area. This leads to high labor intensity, long charging times, severe heat loss, and uneven charging.

[0003] To overcome the drawbacks of manual feeding, a Chinese patent application with publication number CN203464732U provides a charging vehicle for an electric arc furnace, comprising: a forklift and a charging device, wherein the front end of the forklift is equipped with the charging device; the charging device is mainly composed of a support sleeve, a push cylinder, a feeding hopper, and a pushing plate. The support sleeve is arranged horizontally, with the rear end fixed to the forklift, the front end is equipped with a feeding hopper, the feeding hopper is installed with a pushing plate, the pushing cylinder is installed horizontally inside the support sleeve, the cylinder barrel of the pushing cylinder is installed at the rear end of the support sleeve, and the piston rod of the pushing cylinder is fixed to the pushing plate. However, after the forklift adds the mixed material into the furnace, a scraper is used to scrape the mixed material apart. This feeding method does not provide continuity in the feeding of the mixed material, resulting in more serious heat energy loss, uneven feeding, and more serious material deviation.

[0004] To overcome the drawbacks of manual and forklift charging, Chinese patent publication number CN103925799B discloses a top charging system for an ore-bearing furnace. Each system can charge two ore-bearing furnaces, requiring low equipment investment. The plant structure is compact and easy to construct. The technology is mature, operating stably, with a low failure rate and a good operating environment. It can also automate the top charging process. The plant structure is simple and inexpensive, optimizing the structure of the ore-bearing furnace. However, top charging involves high-altitude feeding, and due to the varying specific gravities of the mixed materials, the mixed materials cannot fall synchronously into the furnace. Furthermore, during high-altitude feeding, the powdered mixed materials are drawn away by the chimney. Furthermore, the heavier ore in the mixture easily falls into the deeper layers of the material, while the lighter reducing agent can only fall onto the surface of the material. Even with a scraper, it is difficult to evenly spread the mixture. Consequently, heavy ore that has fallen into the deeper layers of the material cannot be evenly spread, resulting in a serious imbalance in the overall reaction of the material surface.

[0005] To overcome the drawbacks of manual, forklift, and top-loading methods, Chinese patent publication number CN111735310B discloses a charging device for an ore-bearing furnace. The device comprises a support plate, a vibrating feeder mechanism, a distribution device, a travel device, a rotating device, a support frame, a variable-length boom, and an adjustable tilt mechanism. The present invention utilizes the adjustable tilt mechanism to adjust the angle of the entire vibrating feeder mechanism, thereby ensuring that the vibrating feeder mechanism can smoothly enter the furnace even when the furnace door is opened at a low height. By adjusting the angle of the entire vibrating feeder mechanism, the distribution device is raised in a variable-length manner, which not only meets the distribution requirements of the furnace triangular area but also ensures that the discharge end of the distribution device maintains a certain distance from the material in the furnace, achieving uniform distribution even when the material surface is too high.

[0006] When charging an existing ore-heating furnace, the conveying path of the mixture includes three sections, namely the batching section, the feeding section and the feeding section; the batching section refers to mixing the raw ore with carbonaceous reducing agents such as petroleum coke, charcoal, washed coal, wood chips, etc. in a certain proportion to form a mixture; the feeding section refers to conveying the mixture to the storage silo through a pipeline, conveyor belt or carrier; the feeding section refers to conveying the mixture in the storage silo to the furnace of the ore-heating furnace through the ore-heating furnace feeding equipment.

[0007] However, when using the aforementioned methods of manual charging, forklift charging, furnace top charging, and automatic charging (CN111735310B) to charge a submerged arc furnace, a feeding section is essential. In order to ensure the uniformity and continuity of the mixed material during the transportation process from the batching section to the charging section, as well as the convenience of charging, it is necessary to modify the structure and position of the existing feeding section's conveying device, storage silo, storage silo discharge pipe, storage silo feed motor, and other equipment to make them suitable for the charging equipment and charging methods. Summary of the Invention

[0008] In response to the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide an automatic feeding device for a submerged arc furnace which omits the mixed material feeding section while achieving uniformity, continuity and convenience of mixed material transportation, and uniform distribution of materials without dead angles during the feeding process, thereby ensuring the distribution requirements of the furnace triangular area.

[0009] The technical solution of the present invention is as follows: An automatic feeding device for an electric arc furnace with its own material, comprising a walking device, a feeding control mechanism is provided on the walking device, a bracket is provided on the feeding control mechanism, a feeding system, a feeding power mechanism and a feeding nozzle control mechanism are provided on the bracket; the feeding control mechanism, the feeding system, the feeding power mechanism and the feeding nozzle control mechanism are electrically connected to the walking device respectively; the feeding system comprises a silo, a feeding trough and a feeding nozzle, the silo is fixedly provided on the feeding control mechanism, and the discharge end of the silo matches the feed end of the feeding trough, and the feeding trough is provided on the bracket; the discharge end of the feeding trough matches the feed end of the feeding nozzle, and the feeding nozzle is hinged to the bracket; the feeding trough is connected to the feeding power mechanism, and the feeding nozzle is connected to the feeding nozzle control mechanism.

[0010] Preferably, the traveling device includes a traveling device bracket, and a control mechanism, a power source, a counterweight, a steering wheel, and a traveling wheel are provided on the traveling device bracket; the control mechanism is composed of one or a combination of a control panel, a steering wheel, an operating lever, and pedals, and the control mechanism is electrically connected to the power source; the power source is one of a gasoline engine, a diesel engine, a gasoline generator, a diesel generator, an external power supply drive motor, and a self-powered power supply drive motor; the steering wheel is transmission-connected to the power source, the traveling wheel is provided on the traveling device bracket, and the steering wheel is electrically connected to the control mechanism; the counterweight is provided on the traveling device bracket close to the steering wheel, and the feeding control mechanism is provided on the traveling device bracket close to the traveling wheel.

[0011] Preferably, the feeding control mechanism includes a telescopic frame, a load-bearing frame, and a first hydraulic cylinder. The telescopic frame is sleeved on the load-bearing frame and can slide. The load-bearing frame and the first hydraulic cylinder are fixedly arranged on the walking device bracket near the walking wheel; the first hydraulic cylinder is electrically connected to the control mechanism, and the working end of the first hydraulic cylinder is connected to the telescopic frame; the silo and the bracket are fixedly arranged on the telescopic frame; the load-bearing frame is a concave structure, and the outer edge of the telescopic frame is slidably connected to the inner wall of the load-bearing frame.

[0012] Preferably, the silo includes a silo storage area, a silo buffer area, a silo feeding area, and a silo discharge area. The silo storage area is fixedly arranged on the telescopic frame and is connected with the silo feeding area and the silo discharge area. The silo storage area is an inverted cone barrel structure. The silo discharge area is arranged in the cone top area of ​​the silo storage area, and the silo feeding area is arranged in the cone barrel bottom area of ​​the silo storage area; the silo buffer area is a V-shaped structure, the silo buffer area is arranged on the inclined surface of the silo storage area, and the open end of the silo buffer area is connected with the silo storage area; the silo discharge area is placed in the feed end of the feeding trough, and the outer diameter value of the silo discharge area is smaller than the inner diameter value of the feeding trough.

[0013] Preferably, the feeding trough includes a guard plate and a feed plate, the guard plate is a door-type structure, the outer edge of the guard plate is fixedly connected to the inner wall of the bracket, and the feed end of the guard plate matches the discharge area of ​​the hopper; the feed plate is a trough-type structure with one end open, the inner wall of the feed plate is slidingly connected to the outer edge of the guard plate, and the outer edge of the feed plate is slidingly connected to the bracket; the open end of the feed plate and the discharge end of the guard plate constitute the discharge end of the feeding trough and match the feed end of the distributing nozzle; a pulley set is provided on the bracket, and the outer edge of the feed plate is slidingly connected to the bracket through the pulley set; the feed plate is connected to the feeding power mechanism.

[0014] Preferably, the dispensing nozzle includes a dispensing nozzle cavity, a dispensing nozzle cavity feed area, a dispensing nozzle cavity discharge area, a first hinged rod, a first connecting plate, a second hinged rod, a connecting hole, and a receiving area. The dispensing nozzle cavity is a trapezoidal structure. The dispensing nozzle cavity feed area is arranged close to the long bottom side of the dispensing nozzle cavity, and the dispensing nozzle cavity discharge area is arranged close to the short side of the dispensing nozzle cavity. The dispensing nozzle cavity feed area matches the discharge end of the feeding trough, and the dispensing nozzle cavity is hinged to the bracket through the first hinged rod; the outer edge of the dispensing nozzle cavity feed area is hinged to the first connecting plate through the second hinged rod, and the first connecting plate is provided with a connecting hole, and the dispensing nozzle cavity feed area is provided with a receiving area. The inner diameter value of the receiving area is the same as the inner diameter value of the dispensing nozzle cavity feed area and is larger than the outer diameter value of the feeding trough.

[0015] Preferably, the feeding power mechanism includes a feeding power source, an eccentric wheel, and a first connecting rod. The feeding power source is fixedly mounted on the bracket and is electrically connected to the power source and the control mechanism respectively. The eccentric wheel is arranged at the working end of the feeding power source. One end of the first connecting rod is hinged to the eccentric wheel, and the other end of the first connecting rod is hinged to the outer edge of the feeding plate.

[0016] Preferably, the fabric nozzle control mechanism includes a second hydraulic cylinder, a transmission bent rod and a second connecting rod, the second hydraulic cylinder is fixedly arranged on the bracket, the working end of the second hydraulic cylinder is hinged to the transmission bent rod, one end of the second connecting rod is hinged to the transmission bent rod, and the other end of the second connecting rod is fixedly connected to the first connecting plate through a connecting hole.

[0017] Preferably, the transmission bent rod includes a first truss, a first connecting frame, a second truss, a second connecting frame, and a second connecting plate. The end of the first truss is hinged to the bracket, one end of the first connecting frame is fixedly connected to the first truss, and the other end of the first connecting frame is hinged to the second truss; one end of the second connecting frame is fixedly connected to the first truss, and the other end of the second connecting frame is hinged to one end of the second connecting rod through the second connecting plate.

[0018] Preferably, the feeding trough is a trough-shaped structure with one end open, and the discharge end of the feeding trough matches the feed end of the distributing nozzle; the outer edge of the feeding trough is provided with a vibration motor and an elastic buffer reset device, the feeding trough is connected to the bracket through the elastic buffer reset device, and the vibration motor is electrically connected to the power source and the control mechanism respectively.

[0019] The submerged arc furnace described in this article refers to an electric arc furnace or resistance furnace, which is the main production equipment of ferroalloy enterprises, mainly used to produce ferrosilicon, silicomanganese and other ferroalloys. When the submerged arc furnace is in operation, the furnace temperature is above 1800°C, and depending on the furnace conditions, the mixture needs to be frequently transported into the furnace.

[0020] The ferroalloy described in the present invention specifically refers to industrial silicon. In actual operation, the common models of ore-arc furnaces for industrial silicon are 12500KVA, 25000KVA and 33000KVA.

[0021] The charging mentioned in the present invention refers to the process in which workers add a mixture of raw ore and carbonaceous reducing agent into the furnace of the submerged arc furnace through specific equipment and methods.

[0022] The above mentioned in the present invention refers to the two-dimensional rectangular coordinate system in the same plane with the ground as the reference line, with the horizontal direction being the x-axis and the vertical direction being the y-axis, and the above refers to the y-axis direction.

[0023] The three-dimensional left-handed coordinate system described in this invention is established by extending your left hand and positioning your thumb and index finger in an "L" shape, with the thumb pointing right, the index finger pointing up, and the remaining fingers pointing forward. The thumb, index finger, and remaining fingers represent the positive directions of the x, y, and z axes, respectively.

[0024] For the present invention, the contact point between the steering wheel and the horizontal ground is used as the reference. The contact point is the origin o of the three-dimensional left-handed coordinate system. x, y, and z represent the positive directions of the x-axis, y-axis, and z-axis, respectively. -x, -y, and -z represent the negative directions of the x-axis, y-axis, and z-axis, respectively.

[0025] The electrical connections described in this article refer to the connections between wires or conductors within a device. These connections ensure the smooth flow of current to power the device. These connections may include direct contact, connections controlled by switches or relays, or connections achieved through components such as capacitors and inductors.

[0026] The phrase "matching the discharge end of one device with the feed end of another device" used in this disclosure refers to matching the device structure and state of the discharge end of one device with the feed end of another device. This represents the conventional understanding by those skilled in the art of the process of a mixed material passing from the discharge end of one device to the feed end of another device, and this process does not affect the operation of other devices or structures.

[0027] The hydraulic energy sources of the first hydraulic cylinder and the second hydraulic cylinder of the present invention are both power sources, and the operation of the first hydraulic cylinder and the second hydraulic cylinder is controlled by a control mechanism.

[0028] The beneficial effects of the present invention are:

[0029] The arrangement of the walking device of the present invention omits the feeding section, and there is no need to circulate the mixed material through the feeding section. The mixed material is directly transported to the feeding section through the walking device, and the interior of the ore-fired furnace is automatically fed through the cooperation of the walking device, the feeding control mechanism, the feeding system and the feeding power mechanism.

[0030] The present invention uses vibration or sliding to achieve feeding of the feeding trough, achieving uniform and continuous mixed material delivery and convenient feeding. The arrangement of the feeding nozzle and feeding nozzle control mechanism realizes a wide feeding range in the furnace of the submerged arc furnace, ensuring the feeding requirements of the furnace triangular area. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0032] Figure 1 This is a structural diagram of an automatic charging device for a submerged arc furnace with self-contained materials proposed by the present invention;

[0033] Figure 2 for Figure 1 A schematic diagram of the structure in another direction;

[0034] Figure 3 for Figure 1A schematic diagram of the structure in another direction;

[0035] Figure 4 for Figure 1 Schematic diagram of the power device and telescopic structure;

[0036] Figure 5 for Figure 4 Schematic diagram of the cross-section structure of the telescopic structure;

[0037] Figure 6 for Figure 1 Schematic diagram of the main structure of the silo;

[0038] Figure 7 for Figure 6 AA structural diagram;

[0039] Figure 8 for Figure 1 Schematic diagram of the feeding trough structure;

[0040] Figure 9 for Figure 8 BB direction structural diagram;

[0041] Figure 10 for Figure 8 Schematic diagram of CC direction structure;

[0042] Figure 11 for Figure 1 Schematic diagram of the fabric nozzle structure;

[0043] Figure 12 for Figure 11 Schematic diagram of the three-dimensional structure;

[0044] Figure 13 for Figure 3 Schematic diagram of the transmission crank rod structure;

[0045] Figure 14 This is a structural schematic diagram of another embodiment of the automatic charging device for a submerged arc furnace provided by the present invention;

[0046] In the figure: 100, walking device; 101, control mechanism; 102, power source; 103, counterweight; 104, steering wheel; 105, walking wheel; 106, walking device bracket; 200, feeding control mechanism; 201, telescopic frame; 202, load-bearing frame; 203, first hydraulic cylinder; 300, feeding system; 301, silo; 301a, silo storage area; 301b, silo buffer zone; 301c, silo feeding area; 301d, silo discharge area; 302, feeding chute; 302a, material guard plate; 302b, feeding plate; 303, feeding nozzle; 303a, feeding nozzle cavity; 303b, feeding area of ​​feeding nozzle cavity; 303c, feeding nozzle Material cavity discharge area; 303d, first articulated rod; 303e, first connecting plate; 303f, second articulated rod; 303g, connecting hole; 303h, receiving area; 304, pulley group; 400, feeding power mechanism; 401, feeding power source; 402, eccentric wheel; 403, first connecting rod; 500, cloth nozzle control mechanism; 501, second hydraulic cylinder; 502, transmission curved rod; 502a, first truss; 502b, first connecting frame; 502c, second truss; 502d, second connecting frame; 502e, second connecting plate; 503, second connecting rod; 600, vibration motor; 601, elastic buffer reset device; 700, bracket;. DETAILED DESCRIPTION

[0047] like Figure 1-Figure 3 The invention relates to an automatic feeding device for a submerged arc furnace, comprising a walking device 100, a feeding control mechanism 200 being provided on the walking device 100, a bracket 700 being provided on the feeding control mechanism 200, a feeding system 300, a feeding power mechanism 400 and a feeding nozzle control mechanism 500 being provided on the bracket 700; the feeding control mechanism 200, the feeding system 300, the feeding power mechanism 400 and the feeding nozzle control mechanism 500 are electrically connected to the walking device 100 respectively; the feeding system 300 includes a silo 301, a feeding trough 302 and a distributing nozzle 303, the hopper 301 is fixedly arranged on the feeding control mechanism 200, and the discharge end of the hopper 301 matches the feed end of the feeding trough 302, and the feeding trough 302 is arranged on the bracket 700; the discharge end of the feeding trough 302 matches the feed end of the distributing nozzle 303, and the distributing nozzle 303 is hinged to the bracket 700; the feeding trough 302 is connected to the feeding power mechanism 400, and the distributing nozzle 303 is connected to the distributing nozzle control mechanism 500.

[0048] The walking device 100 is mainly used to transport the mixed material from the batching section to the feeding section. This configuration omits the feeding section, saving space. In actual production, when a manufacturer uses the present invention, there is no need to add a feeding section or renovate the existing factory building. It can be used directly, reducing renovation costs and facilitating promotion.

[0049] Another function of the travel device 100 is to coordinate with the charging control mechanism 200 and the charging system 300 to ensure that the charging nozzle 303 in the charging system 300 can accurately pass through the fire door and enter the furnace, thereby enabling charging within the furnace. Specifically, the travel device 100 enables the charging system 300 to enter and exit the furnace, and provides power for the charging control mechanism 200, the charging system 300, the charging power mechanism 400, and the charging nozzle control mechanism 500.

[0050] The bracket 700 is mainly used to support the feeding control mechanism 200, the feeding system 300, the feeding power mechanism 400 and the material dispensing nozzle control mechanism 500, and makes the feeding control mechanism 200, the feeding system 300, the feeding power mechanism 400 and the material dispensing nozzle control mechanism 500 easy to control.

[0051] The main function of the feeding control mechanism 200 is to realize the lifting and lowering of the bracket 700 and the silo 301. During the movement of the walking device 100 from the batching section to the feeding section, the silo 301 is filled with mixed materials. The feeding control mechanism 200 controls the silo 301, the bracket 700 and the mechanism installed on the bracket 700 to move a certain distance toward the ground, thereby lowering the center of gravity of the automatic feeding device of the submerged arc furnace with its own materials, ensuring the safe operation of the automatic feeding device of the submerged arc furnace with its own materials. When the walking device 100 moves to the feeding section, for example, to ensure that the feeding nozzle 303 and the bracket 700 can enter the furnace through the fire door, the feeding control mechanism 200 controls the bracket 700 to move within a fixed path, so that the bracket 700 and the feeding nozzle 303 meet the conditions for entering the furnace through the fire door.

[0052] The main function of the material distribution nozzle control mechanism 500 is to control the material distribution nozzle 303 to work, ensure the material distribution range of the material distribution nozzle 303, and ensure the material distribution demand of the furnace triangle area.

[0053] The main function of the feeding power mechanism 400 is to provide power support for the operation of the feeding trough 302, so as to achieve uniform and continuous movement of the mixed material inside the feeding trough 302.

[0054] The main function of the silo 301 is to load the mixed material. That is, under the control of the traveling device 100, the silo 301 loads the mixed material from the batching section to the feeding section. The main function of the feeding chute 302 is to transport the mixed material from the silo 301 to the distribution nozzle 303. The distribution nozzle 303, under the control of the distribution nozzle control mechanism 500, distributes the mixed material to the triangular area within the furnace.

[0055] like Figures 1-4 As shown, the walking device 100 includes a walking device bracket 106, on which a control mechanism 101, a power source 102, a counterweight 103, a steering wheel 104, and a walking wheel 105 are provided; the control mechanism 101 is composed of one or more combinations of a control panel, a steering wheel, an operating lever, and a pedal, and the control mechanism 101 is electrically connected to the power source 102; the power source 102 is one of a gasoline engine, a diesel engine, a gasoline generator, a diesel generator, an external power supply drive motor, and a self-powered power supply drive motor; the steering wheel 104 is transmission-connected to the power source 102, and the walking wheel 105 is arranged on the walking device bracket 106, and the steering wheel 104 is electrically connected to the control mechanism 101; the counterweight 103 is arranged on the walking device bracket 106 near the steering wheel 104, and the feeding control mechanism 200 is arranged on the walking device bracket 106 near the walking wheel 105.

[0056] The control mechanism 101 primarily controls the operation of the power source 102, steering wheel 104, feeding control mechanism 200, feeding system 300, feeding power mechanism 400, and feeding nozzle control mechanism 500. The power source for steering wheel 104 is power source 102. The movement of steering wheel 104 drives the movement of the traveling device bracket 106, thereby achieving the overall movement of the traveling device 100.

[0057] The main function of the power source 102 is to provide kinetic energy for the operation of the control mechanism 101, the steering wheel 104, the feeding control mechanism 200, the feeding system 300, the feeding power mechanism 400 and the feeding nozzle control mechanism 500. The kinetic energy of the power source 102 is one or a combination of electrical energy, mechanical energy and hydraulic energy.

[0058] In the present invention, the movement path of the steering wheel 104 can be controlled on the ground with the horizontal ground as the reference line. The movement path of the steering wheel 104 is controlled by the control mechanism 101.

[0059] The steering wheel 104 described in the present invention is transmission-connected to the power source 102. Transmission connection is a functional term, meaning that the movement of the steering wheel 104 is driven by the power source 102, but the steering wheel 104 is not directly connected to the power source 102. Specifically, the running gear bracket 106 is also provided with a steering device and a bearing. The steering wheel 104 is bearing-connected to the working end of the bearing. The steering wheel 104 is connected to the steering device. The control mechanism 101 controls the operation of the steering device to control the motion path of the steering wheel 104. The power source 102 drives the bearing to operate and drive the steering wheel 104 to move. The steering device and bearing are existing equipment, and the present invention does not change the structure, operation mode, or working principle of the steering device and bearing. Therefore, they are not shown in the drawings of the specification and are not described in detail in the specification. For those skilled in the art, knowing that the motion path of the steering wheel 104 is controllable, they will understand the connection method of the steering wheel 104 to the running gear bracket 106, and will also understand the need for the steering device and bearing, as well as the structure, operation mode, and working principle of the steering device and bearing.

[0060] With the contact point between the steering wheel 104 and the horizontal ground as the reference, the steering wheel 104 moves within the three-dimensional left-handed coordinate system. By controlling the motion path of the steering wheel 104, the bracket 700 drives the feeding chute 302 and the material distribution nozzle 303 to achieve reciprocating motion from x to -x or -x to x along the x-axis within the furnace. With the contact point between the steering wheel 104 and the horizontal ground as the reference, within the three-dimensional left-handed coordinate system, the steering wheel 104 does not move. The control mechanism 101 controls the material distribution nozzle 303's discharge end to achieve reciprocating motion from z to -z or -z to z along the z-axis within the furnace via the material distribution nozzle control mechanism 500.

[0061] like Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 As shown, the feeding control mechanism 200 includes a telescopic frame 201, a load-bearing frame 202, and a first hydraulic cylinder 203. The telescopic frame 201 is sleeved on the load-bearing frame 202 and can slide. The load-bearing frame 202 and the first hydraulic cylinder 203 are fixedly arranged on the walking device bracket 106 near the walking wheel 105; the first hydraulic cylinder 203 is electrically connected to the control mechanism 101, and the working end of the first hydraulic cylinder 203 is connected to the telescopic frame 201; the silo 301 and the bracket 700 are fixedly arranged on the telescopic frame 201; the load-bearing frame 202 is a concave structure, and the outer edge of the telescopic frame 201 is slidably connected to the inner wall of the load-bearing frame 202.

[0062] The telescopic frame 201 primarily controls the movement of the feeding control mechanism 200, feeding system 300, feeding power mechanism 400, and dispensing nozzle control mechanism 500 along a specific path. Specifically, within a three-dimensional left-handed coordinate system, the control mechanism 101, via the telescopic frame 201, controls the feeding control mechanism 200, feeding system 300, feeding power mechanism 400, and dispensing nozzle control mechanism 500 in the y-to--y or -y-to-y direction along the y-axis, using the contact point between the steering wheel 104 and the horizontal ground as a reference.

[0063] The movement of the telescopic frame 201 within the path included in the load-bearing frame 202 is achieved by the first hydraulic cylinder 203. With the contact point between the steering wheel 104 and the horizontal ground as the reference, within the three-dimensional left-handed coordinate system, when the working end of the first hydraulic cylinder 203 retracts, the telescopic frame 201 moves from the y to -y direction within the path included in the load-bearing frame 202; when the working end of the first hydraulic cylinder 203 extends, the telescopic frame 201 moves from the -y to y direction within the path included in the load-bearing frame 202. The "path included in the load-bearing frame 202" referred to herein refers to the path along which the telescopic frame 201 can move within the load-bearing frame 202, and the length of the movement path of the telescopic frame 201 does not exceed the length of the path included in the load-bearing frame 202.

[0064] The charging control mechanism 200 primarily functions to raise and lower the support 700 and silo 301. While the traveling device 100 moves from the batching section to the charging section, the silo 301 is filled with mixed material. At this point, the center of gravity of the silo 301 is high, making the transportation of the mixed material less safe. To ensure the safe operation of the automatic charging system for the submerged arc furnace, the telescopic frame 201 moves from the y to -y direction within the path of the support frame 202. When the traveling device 100 reaches the charging section, to ensure that the material dispensing nozzle 303 and the support 700 can smoothly pass through the fire door and enter the furnace, the telescopic frame 201 moves from the -y to y direction within the path of the support frame 202, or from the y to -y direction within the path of the support frame 202. Simultaneously, the telescopic frame 201 cooperates with the steering wheel 104 to ensure that the support 700 and material dispensing nozzle 303 meet the requirements for passing through the fire door and entering the furnace.

[0065] Since the bracket 700 is set on the telescopic frame 201, the telescopic frame 201 is placed on the load-bearing frame 202, and the load-bearing frame 202 is set close to the walking wheel 105, in order to maintain the stability of the walking device 100, a counterweight block 103 needs to be set close to the steering wheel 104.

[0066] like Figure 6-Figure 7As shown, the silo 301 includes a silo storage area 301a, a silo buffer area 301b, a silo feeding area 301c, and a silo discharge area 301d. The silo storage area 301a is fixedly arranged on the telescopic frame 201 and is connected to the silo feeding area 301c and the silo discharge area 301d. The silo storage area 301a is an inverted cone barrel structure. The silo discharge area 301d is arranged at the cone top area of ​​the silo storage area 301a. c is arranged in the conical barrel bottom area of ​​the silo storage area 301a; the silo buffer area 301b is a V-shaped structure, and the silo buffer area 301b is arranged on the inclined surface of the silo storage area 301a, and the open end of the silo buffer area 301b is connected to the silo storage area 301a; the silo discharge area 301d is placed in the feed end of the feeding trough 302, and the outer diameter value of the silo discharge area 301d is smaller than the inner diameter value of the feeding trough 302.

[0067] The main function of the silo 301 is to store the mixed material from the batching section to the feeding section and to feed the feeding trough 302 in the feeding system 300. The traditional silo 30 has a conical structure, with the top of the cone as the discharge port and the bottom of the cone as the feed port. During the transportation of the mixed material, the undulating movement path of the traveling device 100 causes the mixed material to compact in the storage area of ​​the silo 301, preventing timely feeding of the feeding trough 302 and affecting the furnace condition.

[0068] The main function of setting up the silo buffer zone 301b is to increase the movement space of the mixed material from the silo storage area 301a to the silo discharge area 301d, play the role of caching the mixed material, ensure that the mixed material is in a fluffy state during the process of being transported from the batching section to the feeding section, and prevent the silo discharge area 301d from being blocked.

[0069] like Figures 8-10 As shown, the feeding trough 302 includes a guard plate 302a and a feeding plate 302b. The guard plate 302a is a door-type structure. The outer edge of the guard plate 302a is fixedly connected to the inner wall of the bracket 700. The feeding end of the guard plate 302a matches the discharge area 301d of the hopper. The feeding plate 302b is a trough-type structure with one end open. The inner wall of the feeding plate 302b is slidably connected to the outer edge of the guard plate 302a. The outer edge of the plate 302b is slidably connected to the bracket 700; the open end of the feeding plate 302b and the discharge end of the guard plate 302a constitute the discharge end of the feeding trough 302 and match the feed end of the cloth nozzle 303; a pulley set 304 is provided on the bracket 700, and the outer edge of the feeding plate 302b is slidably connected to the bracket 700 through the pulley set 304; the feeding plate 302b is connected to the feeding power mechanism 400.

[0070] The main function of the material protection plate 302a is to prevent the mixed material from being scattered during the process of conveying the mixed material by the feeding plate 302b. Another main function is to meet the feeding amount of the feeding plate 302b.

[0071] The feeding chute 302 of the present invention uses a sliding feeding mechanism. Specifically, within a three-dimensional left-handed coordinate system, with the horizontal ground as the reference line, the motion path of the feed plate 302b on the bracket 700 is the x-axis. The feed plate 302b reciprocates in the x-to--x and -x-to-x directions. During its movement from the -x-to-x direction, the feed plate 302b conveys the mixed material from the silo discharge area 301d to the feed end of the dispensing nozzle 303. Due to the limited motion path of the feed plate 302b, inertia causes the mixed material to fall into the dispensing nozzle 303 or accumulate at the dispensing nozzle 303. During its movement from the x-to--x direction, the mixed material at the dispensing nozzle 303 loses its support due to the push of the trailing material, causing it to fall into the dispensing nozzle 303.

[0072] In order to ensure the uniformity of the mixture and the uniformity of the amount of mixture entering the feeding nozzle 303, the movement path and movement mode of the feeding plate 302b are restricted. When the feeding plate 302b adopts sliding feeding, its feeding amount is limited. In order to meet the feeding requirements, a material protection plate 302a is set.

[0073] Sliding feeding is the most cost-effective feeding method for 12500KVA and 25000KVA industrial silicon submerged arc furnaces. These two types of submerged arc furnaces generally require smaller feed volumes than 33000KVA submerged arc furnaces, and sliding feeding can meet actual production needs. Vibratory feeding allows for larger feed volumes in feeding trough 302, requiring higher power, making it suitable for 33000KVA submerged arc furnaces. Screw feeding can lead to severe material jamming in feeding trough 302. This occurs when the gap between the outer edge of the screw feeder and the inner wall of feeding trough 302 becomes jammed, causing raw ore or carbonaceous reducing agent to become lodged in the gap during the movement of the mixed material, causing feeding trough 302 to shut down.

[0074] The arrangement of the pulley block 304 is for the purpose of ensuring that the feed plate 302b moves more conveniently on the one hand, and for the purpose of supporting the feed plate 302b on the other hand.

[0075] Figure 11-12As shown, the distributing nozzle 303 includes a distributing nozzle cavity 303a, a distributing nozzle cavity feeding area 303b, a distributing nozzle cavity discharging area 303c, a first hinge rod 303d, a first connecting plate 303e, a second hinge rod 303f, a connecting hole 303g, and a receiving area 303h. The distributing nozzle cavity 303a is a trapezoidal structure. The distributing nozzle cavity feeding area 303b is close to the long bottom side of the distributing nozzle cavity 303a, and the distributing nozzle cavity discharging area 303c is close to the short side of the distributing nozzle cavity 303a. 03b matches the discharge end of the feeding trough 302, and the feeding nozzle cavity 303a is hinged to the bracket 700 through the first hinge rod 303d; the outer edge of the feeding area 303b of the feeding nozzle cavity is hinged to the first connecting plate 303e through the second hinge rod 303f, and the first connecting plate 303e is provided with a connecting hole 303g, and the feeding area 303b of the feeding nozzle cavity is provided with a receiving area 303h, and the inner diameter value of the receiving area 303h is the same as the inner diameter value of the feeding area 303b of the feeding nozzle cavity and is larger than the outer diameter value of the feeding trough 302.

[0076] The inner diameter of the feeding area 303b of the material distributing nozzle cavity is greater than the inner diameter of the material distributing nozzle cavity discharge area 303c. This setting is to ensure the uniformity of feeding and ensure that the mixed material amount enters the furnace evenly from the material distributing nozzle cavity discharge area 303c.

[0077] With the contact point between steering wheel 104 and the horizontal ground as the reference point, within the three-dimensional left-handed coordinate system, steering wheel 104 is stationary. Control mechanism 101, through dispensing nozzle control mechanism 500, controls dispensing nozzle cavity discharge area 303c to achieve reciprocating motion along the z-axis within the furnace, either in the z-to--z or -z-to-z direction. The first hinged rod 303d is provided to ensure controllable motion path of dispensing nozzle 303.

[0078] The first connecting plate 303e, second hinged rod 303f, and connecting hole 303g are designed to ensure that the dispensing nozzle control mechanism 500 controls the motion path of the dispensing nozzle cavity discharge area 303c. The receiving area 303h is designed to ensure that the open end of the feed plate 302b and the dispensing end of the material guard plate 302a, which form the dispensing end of the feeding chute 302, pass directly through the receiving area 303h into the dispensing nozzle cavity 303a, preventing material spillage in the dispensing nozzle cavity feed area 303b. This also ensures that the portions of the feed plate 302b and material guard plate 302a within the dispensing nozzle cavity 303a do not interfere with the motion path of the dispensing nozzle 303, thereby ensuring the dispensing range of the dispensing nozzle 303.

[0079] The feed nozzle cavity 303a is hinged to the bracket 700 via a first hinge rod 303d. The outer edge of the feed nozzle cavity feed area 303b is hinged to the first connecting plate 303e via a second hinge rod 303f. This hinged connection is designed to extend the life of the equipment and eliminate the need for lubrication. In actual operation, the internal temperature of the furnace exceeds 1800°C. Using other hinged connections can easily damage the equipment.

[0080] like Figure 3 As shown, the feeding power mechanism 400 includes a feeding power source 401, an eccentric wheel 402, and a first connecting rod 403. The feeding power source 401 is fixedly arranged on the bracket 700 and is electrically connected to the power source 102 and the control mechanism 101 respectively. The eccentric wheel 402 is arranged at the working end of the feeding power source 401, one end of the first connecting rod 403 is hinged to the eccentric wheel 402, and the other end of the first connecting rod 403 is hinged to the outer edge of the feeding plate 302b.

[0081] The primary function of the eccentric wheel 402 is to ensure that the motion path of the feed plate 302b is controllable and repeatable. The feeding power source 401 is either an electric motor or a hydraulic cylinder. The electric motor derives its electrical power from the power source 102 and is controlled by the control mechanism 101. The hydraulic cylinder derives its hydraulic energy from the power source 102. The power source 102 converts the hydraulic energy into mechanical energy, driving the hydraulic cylinder, which is controlled by the control mechanism 101.

[0082] When the charging power source 401 is a hydraulic cylinder, the eccentric wheel 402 still needs to be set, because when charging, part of the first connecting rod 403 is inside the furnace, and the temperature inside the furnace is as high as 1800°C. If the working end of the hydraulic cylinder is directly used to contact the first connecting rod 403, there is a problem of short working life of the hydraulic cylinder. The hydraulic cylinder needs to be replaced within a short working time, which is not conducive to the charging work.

[0083] like Figure 3 As shown, the cloth nozzle control mechanism 500 includes a second hydraulic cylinder 501, a transmission bent rod 502 and a second connecting rod 503. The second hydraulic cylinder 501 is fixedly arranged on the bracket 700. The working end of the second hydraulic cylinder 501 is hinged to the transmission bent rod 502. One end of the second connecting rod 503 is hinged to the transmission bent rod 502. The other end of the second connecting rod 503 is fixedly connected to the first connecting plate 303e through the connecting hole 303g.

[0084] The second hydraulic cylinder 501 is electrically connected to the control mechanism 101, and the control mechanism 101 controls the extension and contraction of the second hydraulic cylinder 501. When the second hydraulic cylinder 501 is working, it drives the transmission bent rod 502 and the second connecting rod 503 to move. The movement of the transmission bent rod 502 and the second connecting rod 503 drives the cloth nozzle 303 to move.

[0085] With the contact point between the steering wheel 104 and the horizontal ground as the reference, within the three-dimensional left-hand coordinate system, the control mechanism 101 controls the distributing nozzle cavity discharge area 303c via the second hydraulic cylinder 501 to achieve movement in the z-to--z or -z-to-z direction along the z-axis. Specifically, when the working end of the second hydraulic cylinder 501 is extended, the distributing nozzle cavity discharge area 303c achieves z-to--z movement within the furnace; when the working end of the second hydraulic cylinder 501 is retracted, the distributing nozzle cavity discharge area 303c achieves -z-to-z movement within the furnace.

[0086] The length of the second connecting rod 503 is smaller than the length of the bracket 700 .

[0087] like Figure 13 As shown, the transmission bent rod 502 comprises a first truss 502a, a first connecting frame 502b, a second truss 502c, a second connecting frame 502d, and a second connecting plate 502e. The end of the first truss 502a is hinged to the bracket 700, one end of the first connecting frame 502b is fixedly connected to the first truss 502a, and the other end of the first connecting frame 502b is hinged to the second truss 502c; one end of the second connecting frame 502d is fixedly connected to the first truss 502a, and the other end of the second connecting frame 502d is hinged to one end of the second connecting rod 503 through the second connecting plate 502e.

[0088] The connection relationship between each component of the transmission crankshaft 502 is a mechanical connection, which ensures a long working time in the high temperature environment of the charging section, and is easy to replace and repair, thereby ensuring the continuity of charging of the submerged arc furnace.

[0089] like Figure 14 As shown, as another embodiment of the present invention, the feeding trough 302 is a trough-shaped structure with one end open, and the discharge end of the feeding trough 302 matches the feed end of the distribution nozzle 303; the outer edge of the feeding trough 302 is provided with a vibration motor 600 and an elastic buffer reset device 601, and the feeding trough 302 is connected to the bracket 700 through the elastic buffer reset device 601, and the vibration motor 600 is electrically connected to the power source 102 and the control mechanism 101 respectively.

[0090] The feeding method of the feeding trough 302 of the present invention is vibration feeding, which has a large feeding capacity and strong universality.

[0091] like Figures 1-14As shown, during operation, the power source 102 is activated, and the control mechanism 101 is turned on. The control mechanism 101 and the power source 102 cooperate to control the motion path of the steering wheel 104. The steering wheel 104 cooperates with the running wheels 105 to drive the traveling device 100, the material distributing mechanism 200, the feeding system 300, the feeding power mechanism 400, and the feeding nozzle control mechanism 500 to the batching section. The batching section adds the mixed material to the hopper 301, completing the loading of the batching section. After the loading of the batching section is completed, the power source 102 is activated, and the control mechanism 101 is turned on. The control mechanism 101 and the power source 102 cooperate to control the motion path of the steering wheel 104. The steering wheel 104 cooperates with the running wheels 105 to drive the traveling device 100, the material distributing mechanism 200, the feeding system 300, the feeding power mechanism 400, and the feeding nozzle control mechanism 500 to the feeding section.

[0092] During charging, the power source 102 is activated, and the control mechanism 101 controls the steering wheel 104 to adjust the position of the charging system 300, facilitating the charging nozzle 303 to pass through the submerged arc furnace fire door and enter the furnace. With the horizontal plane of the steering wheel 104 as the reference line, if the position of the support 700, the charging nozzle 303, or the charging plate 302a is higher than the upper edge of the submerged arc furnace fire door, the control mechanism 101 controls the working end of the first hydraulic cylinder 203 to retract a certain distance. At this time, the distance moved by the telescopic frame 201 toward the reference line is the same as the distance the working end of the first hydraulic cylinder 203 has retracted. The movement of the telescopic frame 201 drives the support 700, the charging nozzle 303, and the charging plate 302a toward the reference line, facilitating the support 700, the charging nozzle 303, and the charging plate 302a to enter the furnace.

[0093] Through the coordination of the control mechanism 101 and the power source 102, the motion path of the steering wheel 104 is controlled, positioning the distributing nozzle discharge area 303c within the furnace charging area. At this time, for safety reasons, a certain safe distance is maintained between the outer edge of the silo 301 near the side of the ore furnace fire door and the outer edge of the ore furnace. The equipment between the outer edge of the silo 301 and the distributing nozzle discharge area 303c is located within the furnace. The control mechanism 101 activates the charging power source 401, which drives the eccentric wheel 402 and the first connecting rod 403 to achieve reciprocating motion of the feed plate 302b. The operation of the feed plate 302b transports the mixed material from the silo discharge area 301d to the distributing nozzle cavity 303a. Under the action of gravity, the mixed material enters the furnace through the distributing nozzle cavity discharge area 303c, thereby charging the ore furnace.

[0094] In order to enable the distribution nozzle 303 to distribute the material in the furnace without dead angles, the control mechanism 101 controls the second hydraulic cylinder 501 and the steering wheel 104 to drive the distribution nozzle 303 to move in the furnace, thereby controlling the distribution point of the mixed material in the discharge area 303c of the distribution nozzle cavity.

[0095] When distributing materials in the z-axis direction, with the contact point between the steering wheel 104 and the horizontal ground as a reference, in the three-dimensional left-hand coordinate system, the steering wheel 104 does not move, and the second hydraulic cylinder 502 is controlled by the control mechanism 101. When the second hydraulic cylinder 502 is working, it drives the second truss 502c and the first connecting frame 502b to work. The first connecting frame 502b drives the second connecting frame 502d and the second connecting plate 502e to work. The second connecting plate 502e drives the material discharging area 303c of the material distributing nozzle cavity through the second connecting rod 503 to move. On the z-axis in the same plane, the reciprocating motion of the material distributing area 303c of the material distributing nozzle cavity in the z-to--z or -z-to-z direction is realized to complete the material distributing in the z-axis direction.

[0096] When distributing materials in the x-axis direction, the control mechanism 101 controls the movement of the steering wheel 104 in the three-dimensional left-hand coordinate system, with the contact point between the steering wheel 104 and the horizontal ground as the reference. On the x-axis, the movement of the steering wheel 104 drives the bracket 700 to move back and forth in the x to -x or -x to x direction. The movement of the bracket 700 drives the distributing nozzle 303 to follow the movement of the bracket 700, so that the distributing nozzle material cavity discharge area 303c can reciprocate in the x to -x or -x to x direction, thereby completing the distributing materials in the x-axis direction.

[0097] After the material distribution is completed, the control mechanism 101 controls the movement of the steering wheel 104, driving the material distribution nozzle 303 out of the fire door. The control mechanism 101 controls the movement of the steering wheel 104 to achieve the control of the movement path of the steering wheel 104. The steering wheel 104 cooperates with the running wheel 105 to drive the traveling device 100, the material distribution mechanism 200, the charging system 300, the charging power mechanism 400, and the material distribution nozzle control mechanism 500 to the material distribution section. The material distribution section adds the mixed material to the hopper 301, completing the mixed material loading. The control mechanism 101 controls the movement of the steering wheel 104 to transport the mixed material to the charging section and start charging. The loading, feeding, and feeding, loading process is repeated to achieve uniform and continuous mixed material transportation and convenient charging. The material distribution during the charging process is uniform and there are no dead angles, ensuring the material distribution requirements of the furnace triangular area.

[0098] When the feeding method is vibratory feeding, the control mechanism 101 and the power source 102 cooperate to control the motion path of the steering wheel 104, placing the nozzle discharge area 303c in the furnace feeding area. At this time, for safety reasons, a certain safety distance is left between the outer edge of the silo 301 near the side of the ore furnace fire door and the outer edge of the ore furnace, and the equipment between the outer edge of the silo 301 and the nozzle discharge area 303c is located within the furnace. The control mechanism 101 and the power source 102 cooperate to activate the vibration motor 600, which cooperates with the elastic buffer reset device 601 to activate the feeding chute 302. The feeding chute 302 transports the mixed material from the silo discharge area 301d to the nozzle cavity 303a. Under the action of gravity, the mixed material enters the furnace through the nozzle cavity discharge area 303c, thus completing the feeding of the ore furnace.

Claims

1. An automatic feeding device for a submerged arc furnace, characterized in that: The invention comprises a walking device (100), wherein a feeding control mechanism (200) is arranged on the walking device (100), a bracket (700) is arranged on the feeding control mechanism (200), and a feeding system (300), a feeding power mechanism (400) and a material distributing nozzle control mechanism (500) are arranged on the bracket (700); the feeding control mechanism (200), the feeding system (300), the feeding power mechanism (400) and the material distributing nozzle control mechanism (500) are respectively electrically connected to the walking device (100); the feeding system (300) comprises a material bin (301), a feeding trough (302), and a feeding trough (303). 02) and a material distributing nozzle (303), the material bin (301) is fixedly arranged on the feeding control mechanism (200), and the discharge end of the material bin (301) matches the feeding end of the feeding trough (302), and the feeding trough (302) is arranged on the bracket (700); the discharge end of the feeding trough (302) matches the feeding end of the material distributing nozzle (303), and the material distributing nozzle (303) is hinged to the bracket (700); the feeding trough (302) is connected to the feeding power mechanism (400), and the material distributing nozzle (303) is connected to the material distributing nozzle control mechanism (500).

2. The automatic feeding device for a submerged arc furnace according to claim 1, characterized in that: The walking device (100) comprises a walking device bracket (106), on which a control mechanism (101), a power source (102), a counterweight (103), a steering wheel (104), and a walking wheel (105) are arranged; the control mechanism (101) is composed of one or a combination of a control panel, a steering wheel, an operating lever, and a pedal; the control mechanism (101) is electrically connected to the power source (102); the power source (102) is a gasoline engine, a diesel engine, a gasoline generator, or a combination of a plurality of the above. , a diesel generator, an external power supply drive motor, and a self-contained power supply drive motor; the steering wheel (104) is transmission-connected to the power source (102), the running wheel (105) is arranged on the running device bracket (106), and the steering wheel (104) is electrically connected to the control mechanism (101); the counterweight (103) is arranged on the running device bracket (106) near the steering wheel (104), and the feeding control mechanism (200) is arranged on the running device bracket (106) near the running wheel (105).

3. The automatic feeding device for a submerged arc furnace according to claim 2, characterized in that: The feeding control mechanism (200) comprises a telescopic frame (201), a load-bearing frame (202), and a first hydraulic cylinder (203); the telescopic frame (201) is sleeved on the load-bearing frame (202) and is slidable; the load-bearing frame (202) and the first hydraulic cylinder (203) are fixedly arranged on a walking device bracket (106) near the walking wheel (105); the first hydraulic cylinder (203) is electrically connected to the control mechanism (101), and the working end of the first hydraulic cylinder (203) is connected to the telescopic frame (201); the silo (301) and the bracket (700) are fixedly arranged on the telescopic frame (201); the load-bearing frame (202) is a concave structure, and the outer edge of the telescopic frame (201) is slidably connected to the inner wall of the load-bearing frame (202).

4. The automatic feeding device for a submerged arc furnace according to claim 3 is characterized in that: The silo (301) comprises a silo material storage area (301a), a silo buffer area (301b), a silo material feeding area (301c), and a silo material discharge area (301d). The silo material storage area (301a) is fixedly arranged on the telescopic frame (201) and is connected to the silo material feeding area (301c) and the silo material discharge area (301d). The silo material storage area (301a) is an inverted cone barrel structure. The silo material discharge area (301d) is arranged at the cone top area of ​​the silo material storage area (301a). c) is arranged in the conical barrel bottom area of ​​the silo material storage area (301a); the silo buffer area (301b) is a V-shaped structure, the silo buffer area (301b) is arranged on the inclined surface of the silo material storage area (301a), and the open end of the silo buffer area (301b) is connected to the silo material storage area (301a); the silo discharge area (301d) is placed in the feed end of the feeding trough (302), and the outer diameter value of the silo discharge area (301d) is smaller than the inner diameter value of the feeding trough (302).

5. The automatic feeding device for a submerged arc furnace according to claim 4, characterized in that: The feeding trough (302) includes a material guarding plate (302a) and a material feeding plate (302b), wherein the material guarding plate (302a) is a door-type structure, the outer edge of the material guarding plate (302a) is fixedly connected to the inner wall of the bracket (700), and the feeding end of the material guarding plate (302a) matches the material bin discharge area (301d); the material feeding plate (302b) is a trough-type structure with one end open, the inner wall of the material feeding plate (302b) is slidably connected to the outer edge of the material guarding plate (302a), and the material feeding plate (30 2b) is slidably connected to the bracket (700); the open end of the feed plate (302b) and the discharge end of the material guard plate (302a) constitute the discharge end of the feeding trough (302) and match the feed end of the material dispensing nozzle (303); a pulley block (304) is provided on the bracket (700), and the outer edge of the feed plate (302b) is slidably connected to the bracket (700) through the pulley block (304); the feed plate (302b) is connected to the feeding power mechanism (400).

6. The automatic feeding device for a submerged arc furnace according to claim 5, characterized in that: The distributing nozzle (303) comprises a distributing nozzle cavity (303a), a distributing nozzle cavity feeding area (303b), a distributing nozzle cavity discharging area (303c), a first hinge rod (303d), a first connecting plate (303e), a second hinge rod (303f), a connecting hole (303g), and a receiving area (303h). The distributing nozzle cavity (303a) is a trapezoidal structure. The distributing nozzle cavity feeding area (303b) is arranged close to the long bottom side of the distributing nozzle cavity (303a), and the distributing nozzle cavity discharging area (303c) is arranged close to the short side of the distributing nozzle cavity (303a). b) matching the discharge end of the feeding trough (302), the material distributing nozzle cavity (303a) is hinged to the bracket (700) via a first hinge rod (303d); the outer edge of the feeding area (303b) of the material distributing nozzle cavity is hinged to the first connecting plate (303e) via a second hinge rod (303f), the first connecting plate (303e) is provided with a connecting hole (303g), the material distributing nozzle cavity feeding area (303b) is provided with a receiving area (303h), the inner diameter value of the receiving area (303h) is the same as the inner diameter value of the material distributing nozzle cavity feeding area (303b) and is greater than the outer diameter value of the feeding trough (302).

7. The automatic feeding device for a submerged arc furnace according to claim 6, characterized in that: The feeding power mechanism (400) includes a feeding power source (401), an eccentric wheel (402), and a first connecting rod (403). The feeding power source (401) is fixedly arranged on a bracket (700) and is electrically connected to a power source (102) and a control mechanism (101) respectively. The eccentric wheel (402) is arranged at a working end of the feeding power source (401). One end of the first connecting rod (403) is hinged to the eccentric wheel (402), and the other end of the first connecting rod (403) is hinged to an outer edge of the feeding plate (302b).

8. The automatic feeding device for a submerged arc furnace according to claim 7, characterized in that: The cloth nozzle control mechanism (500) comprises a second hydraulic cylinder (501), a transmission bent rod (502) and a second connecting rod (503); the second hydraulic cylinder (501) is fixedly arranged on a bracket (700); the working end of the second hydraulic cylinder (501) is hinged to the transmission bent rod (502); one end of the second connecting rod (503) is hinged to the transmission bent rod (502); the other end of the second connecting rod (503) is fixedly connected to the first connecting plate (303e) through a connecting hole (303g).

9. The automatic feeding device for a submerged arc furnace according to claim 8, characterized in that: The transmission bent rod (502) comprises a first truss (502a), a first connecting frame (502b), a second truss (502c), a second connecting frame (502d), and a second connecting plate (502e); the end of the first truss (502a) is hinged to the bracket (700); one end of the first connecting frame (502b) is fixedly connected to the first truss (502a); the other end of the first connecting frame (502b) is hinged to the second truss (502c); one end of the second connecting frame (502d) is fixedly connected to the first truss (502a); the other end of the second connecting frame (502d) is hinged to one end of the second connecting rod (503) via the second connecting plate (502e).

10. The automatic feeding device for a submerged arc furnace according to claim 4, characterized in that: The feeding trough (302) is a trough-shaped structure with one end open, and the discharge end of the feeding trough (302) matches the feed end of the material dispensing nozzle (303); a vibration motor (600) and an elastic buffer reset device (601) are provided on the outer edge of the feeding trough (302), the feeding trough (302) is connected to the bracket (700) through the elastic buffer reset device (601), and the vibration motor (600) is electrically connected to the power source (102) and the control mechanism (101) respectively.

Images