Smoke backflow prevention material supplementing device of submerged arc furnace

Abstract

The utility model relates to the technical field of submerged arc furnaces, and discloses a reverse smoke prevention material supplementing device of a submerged arc furnace, which comprises a submerged arc furnace body, a smoke exhaust pipe is mounted on the left side of the submerged arc furnace body, a smoke prevention cap is mounted at the top of the smoke exhaust pipe, a material supplementing seat is connected to the bottom of the smoke exhaust pipe, and a sealing door is arranged at the front end of the material supplementing seat. A clamping pin is installed on the left side of the front end of the material supplementing base, and a sealing door is installed on the right side of the front end of the material supplementing base. According to the utility model, through the arrangement of the material supplementing smoke backflow prevention structure, the smoke exhaust pipe is arranged on the left side of the submerged arc furnace body and is communicated with the top of the material supplementing seat on the left side of the water outlet during use, the handle at the front end of the sealing door is rotated out from the bayonet lock at the front end of the material supplementing seat during use, and the sealing door is turned over at the front end of the material supplementing seat; the material supplementing opening in the front end of the material supplementing base is exposed, and when materials are supplemented into the submerged arc furnace body through the material supplementing opening, smoke dust can be discharged into the smoke exhaust pipe through the material supplementing base, so that the function of preventing smoke backflow during material supplementing is achieved.

Description

Technical Field

[0001] This utility model relates to the field of electric arc furnace technology, specifically to an anti-backdraft feeding device for an electric arc furnace. Background Technology

[0002] A submerged arc furnace, also known as an electric arc furnace or resistance furnace, is a type of equipment used for high-temperature smelting and reduction of ores. It is widely used in industries such as metallurgy and chemical engineering, and is mainly used to produce products such as ferroalloys, calcium carbide, and ferrosilicon. Its working principle is to use the high temperature generated by electrical energy or fuel combustion to cause the furnace charge to undergo a chemical reaction, ultimately obtaining the desired product.

[0003] Backflow of flue gas from a submerged arc furnace refers to the phenomenon where flue gas flows back into the working area from the charging port, electrode holes, or other openings. Backflow not only affects the production environment but can also lead to safety accidents, requiring effective prevention and control measures. Therefore, we propose an anti-backflow feeding device for submerged arc furnaces to address the aforementioned problem. Utility Model Content

[0004] The purpose of this utility model is to provide a backdraft prevention and feeding device for a submerged arc furnace to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a backdraft prevention and feeding device for a submerged arc furnace, comprising a submerged arc furnace body, an exhaust pipe installed on the left side of the submerged arc furnace body, a smoke-proof cap installed on the top of the exhaust pipe, a feeding seat connected to the bottom of the exhaust pipe, a sealing door opened at the front end of the feeding seat, a locking pin installed on the left side of the front end of the feeding seat, a sealing door installed on the right side of the front end of the feeding seat, a protective cover installed on the top of the submerged arc furnace body, and an electrode inserted into the top of the protective cover.

[0006] As a further technical solution of this utility model, the electric arc furnace body is connected to the outside through a flue pipe and a smoke cap, and the left side of the electric arc furnace body is connected to the flue pipe through a feeding seat.

[0007] As a further technical solution of this utility model, the sealing door flips at the front end of the feeding seat to cover the feeding port opened at the front end of the feeding seat, and the handle on the sealing door is engaged with the locking pin at the front end of the feeding seat.

[0008] As a further technical solution of this utility model, a sliding seat is connected to the bottom of the submerged arc furnace body, an adjusting seat is connected to the bottom of the sliding seat, an inner adjusting groove is provided inside the adjusting seat, a fixed seat is connected to the left side of the adjusting seat, a sliding groove is opened on the top of the fixed seat, a hydraulic mounting seat is provided on the top of the sliding groove, a sliding block is connected to the bottom of the hydraulic mounting seat, a locking screw is inserted into the top of the hydraulic mounting seat, a hydraulic cylinder is installed on the top of the hydraulic mounting seat, and a drain outlet is provided on the right side of the submerged arc furnace body.

[0009] As a further technical solution of this utility model, the sliding block at the bottom of the hydraulic mounting base slides inside the sliding groove of the fixed base, the hydraulic mounting base drives the hydraulic cylinder to slide on the top of the fixed base, and the locking screw is inserted into the top of the hydraulic mounting base and contacts the inside of the sliding groove.

[0010] As a further technical solution of this utility model, the hydraulic mounting seat is connected to the bottom of the electric arc furnace body through a hydraulic cylinder, the sliding seat at the bottom of the electric arc furnace body is engaged with the top of the adjusting seat, and the sliding seat at the bottom of the electric arc furnace body slides inside the inner adjusting groove on the inner side of the adjusting seat.

[0011] As a further technical solution of this utility model, the front and rear ends of the adjusting seat are provided with sliding rod grooves, a limiting rod is inserted inside the sliding rod groove, a sleeve is installed on the right side of the limiting rod, an adjusting handle is installed on the right side of the sleeve, an installation block is installed at the rear end of the sleeve, and a receiving cylinder is installed inside the limiting rod.

[0012] As a further technical solution of this utility model, the adjusting handle drives the limiting rod to be inserted into the sliding rod groove at the front and rear ends of the adjusting seat through the sleeve rod. The adjusting handle drives the sleeve rod and the limiting rod at the front end to flip. The mounting block at the rear end of the sleeve rod engages with the limiting rod at the rear end.

[0013] Compared with the prior art, the beneficial effects of this utility model are: the anti-backdraft feeding device of this kind of electric arc furnace not only realizes the function of feeding and preventing backdraft, realizes the function of furnace body adjustment, but also realizes the function of receiving and limiting the material.

[0014] (1) By setting up a feeding anti-backdraft structure, the present invention is beneficial as follows: When in use, the exhaust pipe is installed on the left side of the electric arc furnace body, and the exhaust pipe is connected to the top of the feeding seat on the left side of the drain outlet. When in use, the handle at the front end of the sealing door is rotated out from the latch at the front end of the feeding seat, and the sealing door is flipped at the front end of the feeding seat to expose the feeding port at the front end of the feeding seat. When feeding the inside of the electric arc furnace body through the feeding port, the smoke and dust will be discharged into the exhaust pipe through the feeding seat, thereby realizing the feeding anti-backdraft function. The smoke cap at the top of the exhaust pipe has windproof properties.

[0015] (2) By setting the furnace body adjustment structure, the present invention is beneficial as follows: When in use, the sliding block under the hydraulic mounting seat at the bottom of the hydraulic cylinder on the left side of the ferrous furnace body slides inside the sliding groove inside the fixed seat to adjust the bottom angle of the hydraulic cylinder supporting the ferrous furnace body. Then, the locking screw is inserted into the hydraulic mounting seat and fixed inside the sliding groove. After that, the hydraulic cylinder telescopically pulls the sliding seat at the bottom of the ferrous furnace body to slide inside the inner adjustment groove inside the adjustment seat, so that the ferrous furnace body rotates on the top of the adjustment seat, thereby realizing the furnace body adjustment function.

[0016] (3) By setting a material receiving limit structure, the present invention is beneficial in that: when in use, the sleeve on the right side of the limit rod is flipped and unfolded, the material receiving cylinder is pushed into the limit rod, the mounting block at the rear end of the sleeve rod is engaged with the rear limit rod, and then the limit rod is slid in the sliding rod groove at the front and rear ends of the adjusting seat to fix the position of the material receiving cylinder, thereby realizing the material receiving limit function. Attached Figure Description

[0017] Figure 1 This is a frontal cross-sectional view of the present invention.

[0018] Figure 2 This is an enlarged structural diagram of the exhaust pipe and the feed seat of this utility model;

[0019] Figure 3 This is a schematic cross-sectional view of the sliding seat and adjusting seat of this utility model;

[0020] Figure 4 This is a top view schematic diagram of the limiting rod and sleeve of this utility model.

[0021] In the diagram: 1. Exhaust pipe; 2. Protective cover; 3. Electrode; 4. Submerged arc furnace body; 5. Drain outlet; 6. Hydraulic cylinder; 7. Fixed seat; 8. Adjusting seat; 9. Sliding rod groove; 10. Receiving cylinder; 11. Limiting rod; 12. Adjusting handle; 13. Smoke cap; 14. Feeding seat; 15. Feeding port; 16. Locking pin; 17. Sealing door; 18. Hydraulic mounting seat; 19. Sliding seat; 20. Inner adjusting groove; 21. Sliding groove; 22. Sliding block; 23. Locking screw; 24. Sleeve rod; 25. Mounting block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4An embodiment of this utility model provides: a backdraft prevention and feeding device for a submerged arc furnace, including a submerged arc furnace body 4, an exhaust pipe 1 installed on the left side of the submerged arc furnace body 4, a smokeproof cap 13 installed on the top of the exhaust pipe 1, a feeding seat 14 connected to the bottom of the exhaust pipe 1, a sealing door 17 opened at the front end of the feeding seat 14, a locking pin 16 installed on the left side of the front end of the feeding seat 14, a sealing door 17 installed on the right side of the front end of the feeding seat 14, a protective cover 2 installed on the top of the submerged arc furnace body 4, and an electrode 3 inserted into the top of the protective cover 2;

[0024] The electric arc furnace body 4 is connected to the outside through the flue pipe 1 and the smoke cap 13. The left side of the electric arc furnace body 4 is connected to the flue pipe 1 through the feeding seat 14. The sealing door 17 flips at the front end of the feeding seat 14 to cover the feeding port 15 opened at the front end of the feeding seat 14. The handle on the sealing door 17 is engaged with the locking pin 16 at the front end of the feeding seat 14.

[0025] Specifically, such as Figure 1 and Figure 2 As shown, by setting up a feeding anti-backdraft structure, when in use, the exhaust pipe 1 is installed on the left side of the electric arc furnace body 4, and the exhaust pipe 1 is connected to the top of the feeding seat 14 on the left side of the drain outlet 5. When in use, the handle at the front end of the sealing door 17 is rotated out from the locking pin 16 at the front end of the feeding seat 14, and the sealing door 17 is flipped at the front end of the feeding seat 14, exposing the feeding port 15 at the front end of the feeding seat 14. When feeding material into the electric arc furnace body 4 through the feeding port 15, the smoke and dust will be discharged into the exhaust pipe 1 through the feeding seat 14, thereby realizing the feeding anti-backdraft function.

[0026] A sliding seat 19 is connected to the bottom of the electric arc furnace body 4. An adjusting seat 8 is connected to the bottom of the sliding seat 19. An inner adjusting groove 20 is provided inside the adjusting seat 8. A fixed seat 7 is connected to the left side of the adjusting seat 8. A sliding groove 21 is opened on the top of the fixed seat 7. A hydraulic mounting seat 18 is provided on the top of the sliding groove 21. A sliding block 22 is connected to the bottom of the hydraulic mounting seat 18. A locking screw 23 is inserted into the top of the hydraulic mounting seat 18. A hydraulic cylinder 6 is installed on the top of the hydraulic mounting seat 18. A drain outlet 5 is provided on the right side of the electric arc furnace body 4.

[0027] The sliding block 22 at the bottom of the hydraulic mounting base 18 slides inside the sliding groove 21 inside the fixed base 7. The hydraulic mounting base 18 drives the hydraulic cylinder 6 to slide on the top of the fixed base 7. The locking screw 23 is inserted into the top of the hydraulic mounting base 18 and contacts the inside of the sliding groove 21. The hydraulic mounting base 18 is connected to the bottom of the electric arc furnace body 4 through the hydraulic cylinder 6. The sliding seat 19 at the bottom of the electric arc furnace body 4 is engaged with the top of the adjusting seat 8. The sliding seat 19 at the bottom of the electric arc furnace body 4 slides inside the inner adjusting groove 20 on the inner side of the adjusting seat 8.

[0028] Specifically, such as Figure 1 and Figure 3As shown, by setting up a furnace body adjustment structure, during use, the sliding block 22 below the hydraulic mounting seat 18 at the bottom of the hydraulic cylinder 6 on the left side of the bottom of the ferroalloy furnace body 4 slides inside the sliding groove 21 inside the fixed seat 7, adjusting the bottom angle of the hydraulic cylinder 6 supporting the ferroalloy furnace body 4. Then, the locking screw 23 is inserted into the hydraulic mounting seat 18 and fixed inside the sliding groove 21. After that, the hydraulic cylinder 6 extends and slides the sliding seat 19 at the bottom of the ferroalloy furnace body 4 inside the inner adjustment groove 20 inside the adjustment seat 8, allowing the ferroalloy furnace body 4 to rotate on the top of the adjustment seat 8, thereby realizing the furnace body adjustment function.

[0029] The front and rear ends of the adjusting seat 8 are provided with sliding rod grooves 9. A limiting rod 11 is inserted inside the sliding rod groove 9. A sleeve rod 24 is installed on the right side of the limiting rod 11. An adjusting handle 12 is installed on the right side of the sleeve rod 24. An installation block 25 is installed at the rear end of the sleeve rod 24. A receiving cylinder 10 is installed inside the limiting rod 11.

[0030] The adjusting handle 12 drives the limiting rod 11 to be inserted into the sliding rod groove 9 at the front and rear ends of the adjusting seat 8 via the sleeve rod 24. The adjusting handle 12 drives the sleeve rod 24 and the front limiting rod 11 to flip over, and the mounting block 25 at the rear end of the sleeve rod 24 engages with the rear limiting rod 11.

[0031] Specifically, such as Figure 1 and Figure 4 As shown, by setting a material receiving limit structure, when in use, the sleeve 24 on the right side of the limit rod 11 is flipped and unfolded, the material receiving cylinder 10 is pushed into the limit rod 11, and the mounting block 25 at the rear end of the sleeve 24 is engaged with the rear limit rod 11. Then, the limit rod 11 is slid in the sliding rod groove 9 at the front and rear ends of the adjusting seat 8 to fix the position of the material receiving cylinder 10, thereby realizing the material receiving limit function.

[0032] Working Principle: In use, this invention heats the ore inside the submerged arc furnace body 4 via the electrode 3 at the top of the protective cover 2. During heating, the handle at the front of the sealing door 17 is rotated out from the latch 16 at the front of the feeding seat 14, causing the sealing door 17 to flip over at the front of the feeding seat 14, exposing the feeding port 15 at the front of the feeding seat 14. When feeding the ore into the submerged arc furnace body 4 through the feeding port 15, the smoke and dust will be discharged into the exhaust pipe 1 through the feeding seat 14, allowing the smoke and dust inside the submerged arc furnace body 4 to be discharged through the exhaust pipe 1 and the top smoke cap 13. Then, the sleeve 24 on the right side of the limiting rod 11 is flipped open, and the receiving cylinder 10 is pushed into the limiting rod 11. The mounting block 25 at the rear end of the sleeve 24 is then engaged with the rear limiting rod 1. 1. Engage the clamp, then slide the limiting rod 11 inside the sliding rod groove 9 at the front and rear ends of the adjusting seat 8 to fix the receiving cylinder 10 at the bottom of the electric arc furnace body 4. Finally, slide the sliding block 22 below the hydraulic mounting seat 18 at the bottom of the hydraulic cylinder 6 on the left side of the electric arc furnace body 4 inside the sliding groove 21 inside the fixing seat 7 to adjust the bottom angle of the hydraulic cylinder 6 supporting the electric arc furnace body 4. Then, insert the locking screw 23 into the hydraulic mounting seat 18 and fix it inside the sliding groove 21. Then, the hydraulic cylinder 6 extends and retracts, causing the sliding seat 19 at the bottom of the electric arc furnace body 4 to slide inside the inner adjusting groove 20 inside the adjusting seat 8, allowing the electric arc furnace body 4 to rotate on the top of the adjusting seat 8, so that the molten ore inside the electric arc furnace body 4 is poured into the receiving cylinder 10 from the drain port 5 on the right side.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A backdraft prevention and feeding device for a submerged arc furnace, comprising a submerged arc furnace body (4), characterized in that: A flue pipe (1) is installed on the left side of the electric arc furnace body (4). A smoke cap (13) is installed on the top of the flue pipe (1). A feeding seat (14) is connected to the bottom of the flue pipe (1). A sealing door (17) is opened at the front end of the feeding seat (14). A locking pin (16) is installed on the left side of the front end of the feeding seat (14). A sealing door (17) is installed on the right side of the front end of the feeding seat (14). A protective cover (2) is installed on the top of the electric arc furnace body (4). An electrode (3) is inserted into the top of the protective cover (2).

2. The anti-backflow feeding device for a submerged arc furnace according to claim 1, characterized in that: The electric arc furnace body (4) is connected to the outside through the flue pipe (1) and the smoke cap (13). The left side of the electric arc furnace body (4) is connected to the flue pipe (1) through the feeding seat (14).

3. The anti-backflow feeding device for a submerged arc furnace according to claim 1, characterized in that: The sealing door (17) flips over at the front end of the feeding seat (14) to cover the feeding port (15) opened at the front end of the feeding seat (14), and the handle on the sealing door (17) engages with the locking pin (16) at the front end of the feeding seat (14).

4. The anti-backflow feeding device for a submerged arc furnace according to claim 1, characterized in that: The bottom of the electric arc furnace body (4) is connected to a sliding seat (19), the bottom of the sliding seat (19) is connected to an adjusting seat (8), the interior of the adjusting seat (8) is provided with an inner adjusting groove (20), the left side of the adjusting seat (8) is connected to a fixed seat (7), the top of the fixed seat (7) is provided with a sliding groove (21), the top of the sliding groove (21) is provided with a hydraulic mounting seat (18), the bottom of the hydraulic mounting seat (18) is connected to a sliding block (22), the top of the hydraulic mounting seat (18) is inserted with a locking screw (23), the top of the hydraulic mounting seat (18) is installed with a hydraulic cylinder (6), and the right side of the electric arc furnace body (4) is provided with a drain outlet (5).

5. The anti-backflow feeding device for a submerged arc furnace according to claim 4, characterized in that: The sliding block (22) at the bottom of the hydraulic mounting base (18) slides inside the sliding groove (21) inside the fixed base (7). The hydraulic mounting base (18) drives the hydraulic cylinder (6) to slide on the top of the fixed base (7). The locking screw (23) is inserted into the top of the hydraulic mounting base (18) and contacts the inside of the sliding groove (21).

6. The anti-backflow feeding device for a submerged arc furnace according to claim 4, characterized in that: The hydraulic mounting base (18) is connected to the bottom of the electric arc furnace body (4) via a hydraulic cylinder (6). The sliding seat (19) at the bottom of the electric arc furnace body (4) is engaged with the top of the adjusting seat (8). The sliding seat (19) at the bottom of the electric arc furnace body (4) slides inside the inner adjusting groove (20) on the inner side of the adjusting seat (8).

7. The anti-backflow feeding device for a submerged arc furnace according to claim 4, characterized in that: The front and rear ends of the adjusting seat (8) are provided with sliding rod grooves (9), and a limiting rod (11) is inserted inside the sliding rod groove (9). A sleeve rod (24) is installed on the right side of the limiting rod (11), and an adjusting handle (12) is installed on the right side of the sleeve rod (24). An installation block (25) is installed at the rear end of the sleeve rod (24), and a receiving cylinder (10) is installed inside the limiting rod (11).

8. The anti-backdraft feeding device for a submerged arc furnace according to claim 7, characterized in that: The adjusting handle (12) drives the limiting rod (11) to be inserted into the sliding rod groove (9) at the front and rear ends of the adjusting seat (8) via the sleeve rod (24). The adjusting handle (12) drives the sleeve rod (24) and the limiting rod (11) at the front end to flip. The mounting block (25) at the rear end of the sleeve rod (24) engages with the limiting rod (11) at the rear end.

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