Die steel refining furnace structure

Abstract

The invention belongs to the technical field of die steel refining, particularly relates to a die steel refining furnace structure, and aims to solve the technical problems that a large amount of dust gas generated during working of a refining furnace is attached to the surface of an exhaust channel and is not easy to remove, and the gas emission efficiency is reduced along with the increase of time, so that the refining purity of die steel is influenced. According to the technical scheme, the refining furnace comprises a refining furnace body, a plurality of graphite electrodes are fixedly connected to the top of the refining furnace body at equal intervals, an exhaust port is formed in one side of the refining furnace body, an exhaust channel is fixedly connected to the interior of the exhaust port, and a collecting and filtering module is arranged in the exhaust channel. According to the die steel refining furnace structure, dust gas generated when a refining furnace is used is filtered and collected through the collecting and filtering module, and the situation that solid impurities such as dust are easily attached to the interior of an exhaust channel, the gas emission efficiency is reduced, and therefore the dust makes contact with die steel, and the refining purity of the die steel is affected is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of die steel refining, and particularly relates to a structure of a die steel refining furnace. Background Art

[0002] In recent years, with the continuous development of economic construction and the national defense industry, there are extremely high requirements for the variety and quality of steel. At the same time, it is necessary to improve the productivity of die steel and control the cost. Among them, the refining furnace is a smelting equipment in the hot processing industry, and is mostly used for a smelting equipment in the final deoxidation and alloying process of molten steel in ferrous metallurgy. According to different smelting purposes, there are different classifications. Commonly seen ones include argon blowing refining furnace, LF refining furnace, etc.

[0003] When the refining furnace is working, it will generate a large amount of dust-laden gas. Direct emission is easy to pollute the environment. Solid impurities such as dust in the gas are easy to adhere to the inside of the exhaust passage and are not easy to remove. Moreover, as time goes by, it will reduce the gas emission efficiency of the exhaust passage, so that the dust in the gas fully contacts the die steel in the refining furnace, affecting the refining purity of the die steel. Summary of the Invention

[0004] A structure of a die steel refining furnace provided by the present invention aims to solve the technical problem that a large amount of dust gas generated when the refining furnace is working adheres to the surface of the exhaust passage and is not easy to remove, and as time goes by, it reduces the gas emission efficiency, so that the dust in the gas contacts the die steel in the refining furnace, affecting the refining purity of the die steel.

[0005] The technical solution for the present invention to solve the above technical problems is as follows: A structure of a die steel refining furnace includes a refining furnace body. A plurality of graphite electrodes are fixedly connected to the top of the refining furnace body at equal intervals, and an exhaust port is opened on one side of the refining furnace body. An exhaust passage is fixedly connected inside the exhaust port. A collection and filtration module is arranged inside the exhaust passage, and the collection and filtration module includes a U-shaped baffle. Both sides of the U-shaped baffle are fixedly connected to the inner wall of the exhaust passage. Round holes one are opened on both sides of the U-shaped baffle, and rotating round tubes are connected inside the two round holes one through bearings. The opposite sides of the two rotating round tubes are fixedly connected to the same filter cylinder, and connecting tubes are movably connected inside the two rotating round tubes. The opposite sides of the two connecting tubes are fixedly connected to the same partition plate, and the partition plate is located inside the filter cylinder. An adjustment module is arranged inside the exhaust passage, and the adjustment module includes two adjustment plates.

[0006] By setting up a collection and filtration module and an adjustment module, a large amount of dust gas generated during the operation of the refining furnace can be filtered and collected, avoiding the easy attachment of solid impurities such as dust inside the exhaust passage, reducing the gas emission efficiency, thus causing the dust to contact the die steel and affecting the refining purity of the die steel. At the same time, by using the adjustment module to adjust the opening and closing according to the gas emission volume, the dust in the gas can be effectively filtered and collected, improving the other emission efficiency.

[0007] In a preferred solution, mounting plates are fixedly connected to the inner walls on both sides of the exhaust passage, and a plurality of telescopic springs are fixedly connected to one side of the two mounting plates at equal intervals. The same cleaning brush plate is fixedly connected to one side of the plurality of telescopic springs on the same side; a collection frame is fixedly connected to one side of the exhaust passage, and collection ports are provided on the opposite sides of the exhaust passage and the collection frame. A sealing plate is movably connected to one side of the collection port, and two sealing springs are fixedly connected to one side of the sealing plate. One ends of the two sealing springs are fixedly connected to the inner wall of one side of the same collection frame.

[0008] In a preferred solution, a moving hole is provided on one side of the exhaust passage, and an electric driving rod is fixedly connected to the outside of the moving hole. The driving end of the electric driving rod is fixedly connected to a blanking push plate. The blanking push plate is located above the U-shaped baffle, and a pushing roller is fixedly connected to one side of the blanking push plate.

[0009] In a preferred solution, a limiting hole is provided on one side of the exhaust passage, and a limiting column is connected to the inside of the limiting hole through a bearing. A T-shaped tooth plate is fixedly connected to the outside of the limiting column. A transmission gear is fixedly connected to the outside of one of the rotating circular tubes. The transmission gear located outside the exhaust passage is engaged with the T-shaped tooth plate through a tooth groove.

[0010] In a preferred solution, a slideway is provided on the side surface of the T-shaped tooth plate, and a driving motor is fixedly connected to one side of the exhaust passage. The driving end of the driving motor is connected to a rotating push rod through a coupling. A moving hole is provided on the side surface of the rotating push rod, and a pushing wheel is connected to the inside of the moving hole through a bearing. One end of the pushing wheel is located inside the slideway on the T-shaped tooth plate.

[0011] By setting up a U-shaped baffle and a filter cylinder, when the gas generated during the operation of the refining furnace enters the exhaust passage, the flue gas is blocked by the U-shaped baffle, and at the same time, the filter cylinder filters the gas, making the solid dust stay on the surface of the U-shaped baffle, avoiding the easy attachment of solid impurities such as dust inside the exhaust passage, reducing the gas emission efficiency, thus causing the dust to contact the die steel and affecting the refining purity of the die steel.

[0012] In a preferred embodiment, U-shaped limit frames are fixedly connected to both sides of the exhaust passage, and round holes II are formed on both sides of the two U-shaped limit frames. Rotating shafts are connected to the inside of the opposite two round holes II through bearings, and the outer parts of the two rotating shafts are fixedly connected to one side of the two adjusting frames. The opposite sides of the two adjusting frames located on the same rotating shaft are fixedly connected to one side of the same adjusting plate.

[0013] In a preferred embodiment, limiting tracks are fixedly connected to the inner walls on both sides of the exhaust passage, and two linkage sliding seats are slidably connected to the inside of the two limiting tracks. A moving cylinder is fixedly connected to one side of each of the plurality of linkage sliding seats. The moving cylinders are located inside the adjusting frames. Two round holes III are formed on both sides of the exhaust passage, and the same bidirectional lead screw is connected to the inside of the opposite two round holes III through a bearing.

[0014] In a preferred embodiment, belt pulleys are fixedly connected to one side of the two bidirectional lead screws, and the same transmission belt is slidably connected to the outside of the two belt pulleys.

[0015] In a preferred embodiment, a support plate is connected to one side of the exhaust passage through bolts, and a servo motor is fixedly connected to one side of the support plate. The driving end of the servo motor is connected to one side of one of the bidirectional lead screws through a coupling.

[0016] By providing a collection and filtration module and an adjustment module, the opening and closing of the exhaust port can be adjusted according to the amount of gas generated during the operation of the refining furnace. When there is too much gas, the exhaust resistance can be reduced to effectively filter and collect the gas. When there is too little gas, the exhaust gas flow rate can be relatively increased to improve the emission efficiency.

[0017] As can be seen from the above, a mold steel refining furnace structure provided by the present invention uses a collection and filtration module to filter and collect the dust gas generated during the use of the refining furnace, avoiding the problem that solid impurities such as dust are easily attached to the inside of the exhaust passage, reducing the gas emission efficiency, and thus preventing the dust from contacting the mold steel and affecting the refining purity of the mold steel. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is an overall structural schematic diagram of a mold steel refining furnace structure provided by the present invention; Figure 2 is a cross-sectional structural schematic diagram of the exhaust passage of a mold steel refining furnace structure provided by the present invention; Figure 3 is a side structural schematic diagram of the collection and filtration module of a mold steel refining furnace structure provided by the present invention; Figure 4 is a partial structural schematic diagram of the collection and filtration module of a mold steel refining furnace structure provided by the present invention; Figure 5Partial structural schematic diagram of the adjustment module of a mold steel refining furnace structure proposed by the present invention; In the drawings, the list of components represented by each reference numeral is as follows: 1. Refining furnace body; 2. Graphite electrode; 3. Exhaust passage; 4. Collection and filtration module; 401. U-shaped baffle; 402. Mounting plate; 403. Telescopic spring; 404. Cleaning brush plate; 405. Partition plate; 406. Connecting pipe; 407.; 408. Sealing plate; 409. Sealing spring; 410. Collection box; 411. Filter cylinder; 412. Electric drive rod; 413. Pushing roller; 414. Feeding push plate; 415. Drive motor; 416. Limit post; 417. T-shaped toothed plate; 418. Rotary push rod; 419. Pushing wheel; 420. Transmission gear; 5. Adjustment module; 501. Servo motor; 502. Transmission belt; 503. Bidirectional lead screw; 504. Limit track; 505. Moving cylinder; 506. Linkage slide; 507. Adjustment frame; 508. U-shaped limit frame; 509. Rotating shaft; 510. Adjustment plate; 511. Support plate. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present application will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0020] In the description of the present application, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0021] In the description of the present application, the term "for example" is used to mean "serving as an example, illustration, or explanation". Any embodiment described as "for example" in this application is not necessarily to be construed as more preferred or advantageous than other embodiments. The following description is given to enable any person skilled in the art to implement and use the present invention. In the following description, details are set forth for purposes of explanation. It should be understood that those of ordinary skill in the art can recognize that the present invention can be implemented without the use of these specific details. In other instances, well-known structures and processes are not elaborated in detail so as not to obscure the description of the present invention with unnecessary details. Therefore, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed in this application.

[0022] The structure of a die steel refining furnace disclosed by the present invention is mainly applied to the scenario where a large amount of dust gas generated during the operation of the refining furnace adheres to the surface of the exhaust passage and is not easily removed, and with the passage of time, the gas emission efficiency is reduced, so that the dust in the gas contacts the die steel in the refining furnace, affecting the refining purity of the die steel.

[0023] Refer to Figures 1 - 5 , a structure of a die steel refining furnace, comprising a refining furnace body 1. A plurality of graphite electrodes 2 are fixedly connected to the top of the refining furnace body 1 at equal intervals. An exhaust port is opened on one side of the refining furnace body 1. An exhaust passage 3 is fixedly connected inside the exhaust port. A collection and filtration module 4 is arranged inside the exhaust passage 3. The collection and filtration module 4 includes a U-shaped baffle 401. Both sides of the U-shaped baffle 401 are fixedly connected to the inner wall of the exhaust passage 3. Circular holes 1 are opened on both sides of the U-shaped baffle 401. A rotating circular tube 407 is connected inside each of the two circular holes 1 through a bearing. The opposite sides of the two rotating circular tubes 407 are fixedly connected to the same filter cylinder 411. A connecting tube 406 is movably connected inside each of the two rotating circular tubes 407. The opposite sides of the two connecting tubes 406 are fixedly connected to the same partition plate 405. The partition plate 405 is located inside the filter cylinder 411. An adjustment module 5 is arranged inside the exhaust passage 3. The adjustment module 5 includes two adjustment plates 510.

[0024] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, mounting plates 402 are fixedly connected to both inner walls on both sides of the exhaust passage 3, and a plurality of telescopic springs 403 are fixedly connected to one side of the two mounting plates 402 at equal intervals. One side of the plurality of telescopic springs 403 on the same side is fixedly connected to the same cleaning brush plate 404; a collection box 410 is fixedly connected to one side of the exhaust passage 3, and collection ports are provided on both sides of the exhaust passage 3 and the collection box 410 that face each other. One side of the collection port is movably connected to a sealing plate 408, and two sealing springs 409 are fixedly connected to one side of the sealing plate 408. One end of the two sealing springs 409 is fixedly connected to the inner wall on one side of the same collection box 410; a moving hole is provided on one side of the exhaust passage 3, and an electric drive rod 412 is fixedly connected to the outside of the moving hole. The driving end of the electric drive rod 412 is fixedly connected to a blanking push plate 414. The blanking push plate 414 is located above the U-shaped baffle 401. A pushing roller 413 is fixedly connected to one side of the blanking push plate 414; a limiting hole is provided on one side of the exhaust passage 3, and a limiting column 416 is connected to the inside of the limiting hole through a bearing. A T-shaped tooth plate 417 is fixedly connected to the outside of the limiting column 416. A transmission gear 420 is fixedly connected to the outside of one of the rotating round tubes 407. The transmission gear 420 located outside the exhaust passage 3 is engaged with the T-shaped tooth plate 417 through a tooth groove; a slideway is provided on the side surface of the T-shaped tooth plate 417, and a driving motor 415 is fixedly connected to one side of the exhaust passage 3. The driving end of the driving motor 415 is connected to a rotating push rod 418 through a coupling. A moving hole is provided on the side surface of the rotating push rod 418, and a pushing wheel 419 is connected to the inside of the moving hole through a bearing. One end of the pushing wheel 419 is located inside the slideway on the T-shaped tooth plate 417.

[0025] Refer to Figure 1 , Figure 2 and Figure 5, in a preferred embodiment, U-shaped limiting frames 508 are fixedly connected to both sides of the exhaust passage 3, and round holes two are formed in both sides of the two U-shaped limiting frames 508. Rotating shafts 509 are connected to the inside of the opposite two round holes two through bearings. The outside of the two rotating shafts 509 is fixedly connected to one side of the two adjusting frames 507. The opposite sides of the two adjusting frames 507 located on the same rotating shaft 509 are fixedly connected to one side of the same adjusting plate 510; limiting tracks 504 are fixedly connected to the inner walls of both sides of the exhaust passage 3, and two linkage sliding seats 506 are slidably connected to the inside of the two limiting tracks 504. One side of each of the plurality of linkage sliding seats 506 is fixedly connected to a moving cylinder 505. The moving cylinder 505 is located inside the adjusting frame 507. Two round holes three are formed in both sides of the exhaust passage 3. The inside of the opposite two round holes three is connected to the same bidirectional lead screw 503 through a bearing; one side of each of the two bidirectional lead screws 503 is fixedly connected to a pulley, and the outside of the two pulleys is slidably connected to the same transmission belt 502; one side of the exhaust passage 3 is connected to a support plate 511 through a bolt, and a servo motor 501 is fixedly connected to one side of the support plate 511. The driving end of the servo motor 501 is connected to one side of one of the bidirectional lead screws 503 through a coupling.

[0026] Working principle: When the gas generated during the operation of the refining furnace enters the exhaust passage 3, it is blocked by the U-shaped baffle 401. The driving motor 415 is started. While the driving motor 415 makes the rotating push rod 418 operate, it also makes the T-shaped toothed plate 417 operate, driving the transmission gear 420 and the filter cylinder 411 to rotate bidirectionally together. The gas is filtered through the filter cylinder 411, so that the dust and solid impurities in the gas fall to one side of the U-shaped baffle 401 by gravity. At this time, the blocking plate 405 closes the filter holes below the filter cylinder 411 to prevent the dust and solid impurities from being sucked again. Then, by starting the electric driving rod 412 to drive the blanking push plate 414 to push the dust and solid impurities on the U-shaped baffle 401. When the push roller 413 on the blanking push plate 414 contacts the sealing plate 408, the sealing spring 409 on the sealing plate 408 is compressed at this time, and the sealing plate 408 is opened to discharge the dust and solid impurities. The dust and solid impurities are collected uniformly by the collection frame 410, and then the operation is repeated. When the push roller 413 is separated from the sealing plate 408, the sealing spring 409 resets to close the sealing plate 408. The filtered gas enters the exhaust passage 3 through the rotating round tube 407, avoiding the filtering end of the filter cylinder 411 always facing the flue gas inlet direction. At the same time, the outer part of the filter cylinder 411 is cleaned by the cleaning brush plate 404 to prevent the filter cylinder 411 from being blocked; when discharging the gas, it is adjusted to open and close according to the gas discharge volume. When the dust content in the flue gas is relatively high, the servo motor 501 is started at this time. The servo motor 501 drives one of the bidirectional lead screws 503 to make the other bidirectional lead screw 503 rotate simultaneously, so that the linkage sliding seat 506 moves towards each other within the limit track 504, and the moving cylinder 505 on the linkage sliding seat 506 drives the adjustment frame 507 to reduce the opening degree of the adjustment plate 510, and vice versa, the opening degree of the adjustment plate 510 of the smoke exhaust opening and closing plate is increased.

[0027] Although the preferred embodiments of the present invention have been described, those skilled in the art can make additional changes and modifications once they know the basic creative concept. Therefore, the appended claims are intended to be construed as including the preferred embodiments and all changes and modifications falling within the scope of the present invention.

[0028] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these modifications and variations.

Claims

1. A refining furnace structure for die steel, characterized in that, It includes a refining furnace body (1). A plurality of graphite electrodes (2) are fixedly connected to the top of the refining furnace body (1) at equal intervals. An exhaust port is provided on one side of the refining furnace body (1), and an exhaust passage (3) is fixedly connected inside the exhaust port. A collection and filtration module (4) is arranged inside the exhaust passage (3), and the collection and filtration module (4) includes a U-shaped baffle (401). Both sides of the U-shaped baffle (401) are fixedly connected to the inner wall of the exhaust passage (3). Circular holes one are provided on both sides of the U-shaped baffle (401), and a rotating circular tube (407) is connected inside both circular holes one through bearings. The opposite sides of the two rotating circular tubes (407) are fixedly connected to the same filter cylinder (411), and connecting tubes (406) are movably connected inside the two rotating circular tubes (407). The opposite sides of the two connecting tubes (406) are fixedly connected to the same partition board (405), and the partition board (405) is located inside the filter cylinder (411). An adjustment module (5) is arranged inside the exhaust passage (3), and the adjustment module (5) includes two adjustment plates (510).

2. The structure of a die steel refining furnace according to claim 1, characterized in that, Mounting plates (402) are fixedly connected to the inner walls on both sides of the exhaust passage (3), and a plurality of telescopic springs (403) are fixedly connected to one side of the two mounting plates (402) at equal intervals. The same cleaning brush plate (404) is fixedly connected to one side of the plurality of telescopic springs (403) on the same side.

3. The structure of a mold steel refining furnace according to claim 2, characterized in that, A collection box (410) is fixedly connected to one side of the exhaust passage (3), and collection ports are provided on the opposite sides of the exhaust passage (3) and the collection box (410). A sealing plate (408) is movably connected to one side of the collection port. Two sealing springs (409) are fixedly connected to one side of the sealing plate (408), and one ends of the two sealing springs (409) are fixedly connected to the inner wall on one side of the same collection box (410).

4. The structure of a die steel refining furnace according to claim 3, characterized in that, An activity hole is provided on one side of the exhaust passage (3), and an electric drive rod (412) is fixedly connected outside the activity hole. The drive end of the electric drive rod (412) is fixedly connected to a blanking push plate (414). The blanking push plate (414) is located above the U-shaped baffle (401), and a push roller (413) is fixedly connected to one side of the blanking push plate (414).

5. The structure of a die steel refining furnace according to claim 4, characterized in that, A limit hole is provided on one side of the exhaust passage (3), and a limit post (416) is connected inside the limit hole through a bearing. A T-shaped tooth plate (417) is fixedly connected to the outside of the limit post (416). A transmission gear (420) is fixedly connected to the outside of one of the rotating circular tubes (407). The transmission gear (420) located outside the exhaust passage (3) is meshed with the T-shaped tooth plate (417) through a tooth groove.

6. The structure of a die steel refining furnace according to claim 5, characterized in that, The side of the T-shaped tooth plate (417) is provided with a slideway, and a driving motor (415) is fixedly connected to one side of the exhaust passage (3). The driving end of the driving motor (415) is connected to a rotary push rod (418) through a coupling. An activity hole is provided on the side of the rotary push rod (418), and a push wheel (419) is connected to the inside of the activity hole through a bearing. One end of the push wheel (419) is located inside the slideway on the T-shaped tooth plate (417).

7. The structure of a die steel refining furnace according to claim 1, characterized in that, U-shaped limit frames (508) are fixedly connected to both sides of the exhaust passage (3), and round holes two are provided on both sides of the two U-shaped limit frames (508). Rotating shafts (509) are connected to the inside of the opposite two round holes two through bearings. The outside of the two rotating shafts (509) is fixedly connected to one side of the two adjusting frames (507), and the opposite sides of the two adjusting frames (507) located on the same rotating shaft (509) are fixedly connected to one side of the same adjusting plate (510).

8. A structure of a die steel refining furnace according to claim 7, characterized in that, Limit tracks (504) are fixedly connected to the inner walls of both sides of the exhaust passage (3), and two linkage sliding seats (506) are slidably connected to the inside of the two limit tracks (504). Moving cylinders (505) are fixedly connected to one side of the multiple linkage sliding seats (506). The moving cylinders (505) are located inside the adjusting frames (507). Two round holes three are provided on both sides of the exhaust passage (3), and the inside of the opposite two round holes three is connected to the same bidirectional lead screw (503) through a bearing.

9. The structure of a die steel refining furnace according to claim 8, characterized in that, One side of each of the two bidirectional lead screws (503) is fixedly connected with a belt pulley, and the outside of the two belt pulleys is slidably connected with the same transmission belt (502).

10. The structure of a mold steel refining furnace according to claim 9, characterized in that, A support plate (511) is connected to one side of the exhaust passage (3) through bolts, and a servo motor (501) is fixedly connected to one side of the support plate (511). The driving end of the servo motor (501) is connected to one side of one of the bidirectional lead screws (503) through a coupling.

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