Automatic control feeding device of refining furnace

Abstract

The utility model provides an automatic control feeding device for a refining furnace, which relates to the technical field of smelting feeding and comprises a molten steel oxygen determination detector entering the refining furnace to detect the oxygen content of molten steel, a first pipe, a second pipe communicated with the first pipe and provided with an included angle, and a motor in signal connection with the molten steel oxygen determination detector, wherein a transmission part in the motor is combined with the second pipe, and when the motor drives the second pipe to axially rotate, the first pipe dives into molten steel in the furnace in a reciprocating manner; according to the invention, when the molten steel oxygen content detected by the molten steel oxygen determination detection piece exceeds a threshold value, the motor drives the second pipe to axially rotate, and at the same time, the batching structure presses the deoxidizer into the second pipe, and the deoxidizer is guided into the first pipe under continuous and periodic continuous extrusion, so that the deoxidizer can be rapidly dissolved in the molten steel in combination with the process that the first pipe dives into the molten steel in a reciprocating manner; and the deoxidizing agent in the pipe is fed into the molten steel.

Description

Technical Field

[0001] This utility model relates to the field of metallurgical feeding technology, and in particular to an automatic control feeding device for refining furnaces. Background Technology

[0002] In steel refining, deoxidizers need to be added to the furnace. Currently, patent application number 200620086249.X describes four deoxidizer addition methods, including its own technical solution. Due to space limitations, this utility model patent does not specify when the deoxidizer should be added. Furthermore, the addition method still relies heavily on manual operation, and the addition technology needs to be updated. Utility Model Content

[0003] The purpose of this invention is to provide an automatic control feeding device for refining furnaces to solve the above-mentioned technical problems.

[0004] To solve the above-mentioned technical problems, this utility model adopts the following technical solution:

[0005] The automatic control feeding device for refining furnace includes a steel oxygen detection element that enters the refining furnace to detect the oxygen content of molten steel, a first pipe, a second pipe that is connected to the first pipe and has an angle, and a motor that is connected to the steel oxygen detection element by signal.

[0006] The transmission part of the motor is connected to the second tube. When the motor drives the second tube to rotate axially, the first tube reciprocates and sinks into the molten steel in the furnace.

[0007] It also includes a batching structure, which, when the second pipe rotates axially, presses deoxidizer into the second pipe, introduces the deoxidizer into the first pipe, and sends it into the molten steel.

[0008] Preferably, when the oxygen content in the molten steel detected by the oxygen detector exceeds the threshold, the motor drives the second tube to rotate axially.

[0009] Preferably, the motor is the drive unit of the batching structure.

[0010] Preferably, the feeding structure includes a material frame and a slider, wherein the second tube passes through the axis of the material frame and extends outward, wherein one extension of the second tube is combined with the first tube, and the other extension of the second tube has a flange that is fixedly combined with the transmission part of the motor.

[0011] The material frame is equipped with a first chamber for holding the deoxidizer, and a second chamber located at the tail.

[0012] The second tube has a plurality of first grooves within the area of ​​the first cavity, and the second tube has a plurality of second grooves within the area of ​​the second cavity;

[0013] The slider is located inside the second cavity, and the slider loops around the second tube;

[0014] The slider is equipped with a limiting block that enters the second groove, and a top rod located inside the second tube, whose axis coincides with the second tube and is fixed by the limiting block;

[0015] The push rod extends into the area where multiple first slots are installed;

[0016] It also includes a plurality of protrusions arrayed at the bottom of the second cavity, a plurality of rolling balls arrayed at the end of the slider and facing the plurality of protrusions, and a spring that loops around the second tube and whose two ends are in contact with the slider and the flange respectively.

[0017] When the motor drives the second tube to rotate axially, several balls at the slider bounce repeatedly relative to several protrusions, causing the slider to slide back and forth relative to the second tube.

[0018] Preferably, when the push rod reciprocates relative to the second tube, it squeezes the deoxidizer that enters the second tube from the first groove and forces the deoxidizer into the second tube.

[0019] Preferably, the first cavity also contains an auger that loops around the second tube.

[0020] Preferably, the gap between adjacent protrusions is the contact area between the rolling ball and the bottom of the second cavity.

[0021] Preferably, the material frame is fixed, and the second tube coincides with the axis of the material frame via the bearing frame sleeve.

[0022] The beneficial effects of this utility model are:

[0023] In this invention, when the oxygen content of the molten steel detected by the oxygen detector exceeds the threshold, the motor drives the second tube to rotate axially. At the same time, the feeding structure presses deoxidizer into the second tube and introduces the deoxidizer into the first tube under continuous periodic extrusion. In combination with the process of the first tube reciprocating into the molten steel, the deoxidizer located in the tube is sent into the interior of the molten steel. Attached Figure Description

[0024] Figure 1 A schematic diagram of the automatic control feeding device for a refining furnace;

[0025] Figure 2 for Figure 1 Cross-sectional view;

[0026] Figure 3 for Figure 2 Further cross-sectional view after the material frame has been removed;

[0027] Figure 4 for Figure 3 A local location in the separated 3D image;

[0028] Reference numerals in the attached drawings: 1. Oxygen detection element for molten steel; 2. First pipe; 3. Second pipe; 4. Material frame; 5. Motor; 6. First cavity; 7. Second cavity; 8. Slider; 9. Spring; 10. Flange; 11. First groove; 12. Screwdriver; 13. Ball; 14. Protrusion; 15. Second groove; 16. Top rod; 17. Limiting block. Detailed Implementation

[0029] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0030] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0031] Example 1

[0032] In this embodiment, an automatic control feeding device for a refining furnace is proposed. Please refer to [link to relevant documentation]. Figures 1-4 The automatic control feeding device for the refining furnace includes a steel oxygen detector 1 that enters the refining furnace to detect the oxygen content of the molten steel.

[0033] To further explain, the molten steel oxygen detection device 1 includes a molten steel oxygen probe and a handle for mounting the molten steel oxygen probe. The molten steel oxygen probe enters the furnace from outside the furnace and is submerged in the molten steel.

[0034] Please see Figures 1-4 The automatic control feeding device for the furnace also includes a first pipe 2, a second pipe 3 connected to the first pipe 2 and having an angle, and a motor 5 connected to the oxygen detection element 1 of molten steel.

[0035] It should be noted that the angle between the first tube 2 and the second tube 3 should preferably be greater than or equal to 90°.

[0036] To further explain, the transmission part used in motor 5 is combined with the second tube 3, thereby... Figure 1 For reference, when motor 5 drives the second tube 3 to rotate axially, the first tube 2 reciprocates as it descends into the molten steel inside the furnace.

[0037] Of course, it also includes the feeding structure, the function of which is to press deoxidizer into the second pipe 3 when the second pipe 3 rotates axially, and to introduce the deoxidizer into the first pipe 2 under continuous periodic extrusion, so as to send the deoxidizer located in the pipe into the interior of the molten steel in combination with the process of the first pipe 2 reciprocatingly submerging into the molten steel.

[0038] In this embodiment, it should be noted that when the oxygen content of the molten steel detected by the oxygen detection device 1 exceeds the threshold, the motor 5 drives the second tube 3 to rotate axially. The rotation time of the motor 5 can be preset, or it can be adaptively adjusted in combination with the change of oxygen content in the molten steel.

[0039] Please continue reading Figures 1-4 Regarding the feeding structure, it includes a material frame 4 and a slider 8. The second tube 3 is inserted through the axis of the material frame 4 and extends outward. One extension of the second tube 3 is connected to the first tube 2, and the other extension of the second tube 3 is equipped with a flange 10, which is fixedly connected to the transmission part of the motor 5.

[0040] Please see Figure 2 The material frame 4 is equipped with a first chamber 6 for holding the deoxidizer, and a second chamber 7 located at the tail.

[0041] Please see Figures 2-4 The second tube 3 has three first slots 11 arranged around the area of ​​the first cavity 6, and the second tube 3 has three second slots 15 arranged around the area of ​​the second cavity 7.

[0042] by Figure 2 and Figure 3 For reference, slider 8 is located in the second cavity 7 and slider 8 encircles the second tube 3. It should be noted that slider 8 is equipped with a limiting block 17 that enters the second groove 15, and a push rod 16 located in the second tube 3 with its axis overlapping the second tube 3 and fixed by the limiting block 17. The push rod 16 extends to the setting area of ​​the three first grooves 11.

[0043] Please continue reading Figure 2 and Figure 3 The bottom of the second cavity 7 has four protrusions 14, and the end of the slider 8 has four rolling balls 13 that are directly opposite the four protrusions 14. In order to enable the slider 8 to slide repeatedly, a spring 9 is also provided that loops around the second tube 3 and contacts the slider 8 and the flange 10 at both ends respectively.

[0044] To further explain, when the motor 5 drives the second tube 3 to rotate axially, the four balls 13 at the slider 8 repeatedly bounce relative to the four protrusions 14, causing the slider 8 to slide back and forth relative to the second tube 3.

[0045] To further explain, as the slider 8 reciprocates relative to the second tube 3, the push rod 16 squeezes the deoxidizer that enters the second tube 3 from the first groove 11 and presses the deoxidizer into the second tube 3 to achieve the desired effect of ingredient preparation.

[0046] The following aspects also need to be explained in this embodiment:

[0047] First, there is also a screw conveyor 12 that is looped around the second tube 3 inside the first cavity 6.

[0048] Second, the gap between adjacent protrusions 14 is the contact area between the rolling ball 13 and the bottom of the second cavity 7.

[0049] Third, the material frame 4 is fixed, and the second tube 3 coincides with the axis of the material frame 4 via the bearing frame sleeve.

[0050] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0051] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A refining furnace automatic control feeding device, including a molten steel oxygen detection device for detecting the oxygen content of molten steel entering the refining furnace, characterized in that: It also includes a first tube, a second tube connected to the first tube and having an included angle, and a motor connected to the signal of the molten steel oxygen detection member; The transmission part used in the motor is combined with the second tube. When the motor drives the second tube to rotate axially, the first tube reciprocates and dives into the molten steel in the furnace. It also includes a batching structure. When the second tube rotates axially, the batching structure presses a deoxidizer into the second tube, guides the deoxidizer into the first tube and then sends it into the molten steel.

2. The automatic control feeding device for a refining furnace according to claim 1 is characterized in that: When the oxygen content of the molten steel detected by the molten steel oxygen detector exceeds a threshold value, the motor drives the second tube to rotate axially.

3. The automatic control feeding device for a refining furnace according to claim 1 is characterized in that: The motor is the driving part of the batching structure.

4. The automatic control feeding device for a refining furnace according to claim 3 is characterized in that: The material distribution structure includes a material frame and a slider, wherein the second tube penetrates through the axis of the material frame and extends outward, wherein an extension of the second tube is combined with the first tube, and another extension of the second tube has a flange fixedly combined with the transmission part of the motor; The material frame is provided with a first cavity for containing the deoxidizer, and a second cavity at the rear; The second tube has a plurality of first grooves within the range of the first cavity, and the second tube has a plurality of second grooves within the range of the second cavity; The slider is located in the second cavity, and the slider is encircled by the second tube; The slider is provided with a stop block which enters the second groove, and a push rod which is located in the second tube and has an axis which coincides with the second tube and is fixed by the stop block; The top rod extends toward the area where the plurality of first grooves are arranged; It also includes a plurality of protrusions arrayed at the bottom of the second cavity, a plurality of rolling balls arrayed at the end of the slider and facing the plurality of protrusions, and a spring encircling the second tube and having two ends respectively in contact with the slider and the flange; When the motor drives the second tube to rotate axially, a plurality of balls on the slider bounce repeatedly relative to a plurality of protrusions, so that the slider slides back and forth relative to the second tube.

5. The automatic control feeding device for a refining furnace according to claim 4 is characterized in that: When the slider reciprocates relative to the second tube, the push rod squeezes the deoxidizer entering the second tube from the first groove and presses the deoxidizer into the second tube.

6. The automatic control feeding device for a refining furnace according to claim 1 is characterized in that: The first cavity also has an auger trapped at the second tube.

7. The automatic control feeding device for a refining furnace according to claim 4 is characterized in that: The gap between adjacent protrusions is the contact area between the rolling ball and the bottom of the second cavity.

8. The automatic control feeding device for a refining furnace according to claim 4 is characterized in that: The material frame is fixed, and the second tube coincides with the axis of the material frame via the bearing frame sleeve.

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