Tilting dust removal device for continuous casting tundish

Abstract

The utility model discloses a continuous casting tundish tipping dust removal device, and relates to the technical field of continuous casting, the continuous casting tundish tipping dust removal device comprises a dust removal fence, a dust removal cover plate, an atomization spraying pipe, a dust blocking curtain, a winding device and a dust remover, the dust removal fence is arranged around a tundish tipping area, and an opening is formed in the position, close to a tundish tipping car running track, of the dust removal fence; the dust removal cover plate is hinged to the top of the side, away from the opening, of the dust removal fence. The winding device drags the dust removal cover plate to rotate by a certain angle; the dust blocking curtain is installed on the edge, corresponding to the opening side of the dust removal fence, of the dust removal cover plate, and when the dust removal cover plate is in a horizontal state, the dust blocking curtain can completely block the opening of the dust removal fence; the atomizing and spraying pipe is mounted on the inner side of the dust removal cover plate and is used for atomizing and spraying water; and the dust remover is communicated with the upper part of the dust removal fence to suck away dust. Flying dust or harmful gas diffusion is avoided, the field working environment is improved, and the occupational disease generation probability is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of continuous casting, in particular to a tundish tilting dust removal device for continuous casting. Background Technique

[0002] When continuous casting is carried out for molten steel pouring, the molten steel in the ladle needs to be first poured into the tundish. In order to avoid the tundish being corroded by molten steel, refractory materials are built in the tundish. However, the refractory materials will also be damaged after long-term corrosion. The staff transports the tundish to a special location and dumps the residual refractory materials and attached cold steel in the tundish. A large amount of dust and heat will be generated during tilting, bringing great dust harm and heat radiation to the operators. Working in this environment for a long time will cause diseases such as pneumoconiosis and lung cancer. In the continuous casting industry, methods such as dust removal by a blower are commonly used, but the equipment investment for dust removal by a blower is large and the cost is high.

[0003] The Chinese utility model patent with the publication number of CN205762873U discloses a tundish tilting table dust removal spraying device for continuous casting. A spraying device is arranged in the tundish tilting area of continuous casting, and water is atomized and sprayed to remove dust and cool down. This patent directly sprays water on the tundish tilting area of continuous casting, which is easy to generate a large amount of harmful gases such as smoke, and there is still a large amount of dust flying into the air, and the dust removal effect is not ideal. Summary of the Invention

[0004] In order to solve the above technical problems, the utility model provides a tundish tilting dust removal device for continuous casting to improve the dust removal effect, reduce the high-temperature radiation and avoid harm to the operators.

[0005] The technical solution of the utility model is: a tundish tilting dust removal device for continuous casting, which includes a dust removal enclosure, a dust removal cover plate, an atomizing spray pipe, a dust curtain, a hoisting device and a dust collector. The dust removal enclosure is arranged around the tundish tilting area, and an opening is arranged at the dust removal enclosure near the running track of the tundish tilting car; the dust removal cover plate is hinged at the top of the side of the dust removal enclosure away from the opening; the hoisting device pulls the dust removal cover plate to rotate by a certain angle; the dust curtain is installed at the edge corresponding to the opening side of the dust removal cover plate and the dust removal enclosure. When the dust removal cover plate is in a horizontal state, the dust curtain can completely block the opening of the dust removal enclosure; the atomizing spray pipe is installed inside the dust removal cover plate for atomizing and spraying water; the dust collector is communicated with the upper part of the dust removal enclosure to suck away the dust.

[0006] Furthermore, an anti-falling chain is arranged between the dust removal cover plate and the dust removal enclosure, and the anti-falling chain makes the rotation angle of the dust removal cover plate less than 90 degrees.

[0007] Furthermore, the maximum rotation angle of the dust removal cover plate is 70 degrees.

[0008] Further, the hoisting device rotates the dust removal cover plate through a traction steel wire rope.

[0009] Further, the atomizing spray pipe is connected to a high-pressure water pipe, and a valve is arranged on the high-pressure water pipe.

[0010] Further, the hoisting device, the dust collector, and the high-pressure water pipe valve are respectively electrically connected to a controller, and the controller controls the switches of the hoisting device, the dust collector, and the atomizing spray pipe through a motor, a dust removal valve, and the valve respectively.

[0011] Further, the dust collector includes a dust suction pipe and a dust removal main pipe. One end of the dust suction pipe is communicated with the dust suction port at the upper part of the dust removal enclosure, and the other end of the dust suction pipe is communicated with the dust removal main pipe.

[0012] Further, the distance between the dust suction port and the upper part of the dust removal enclosure is 200 mm.

[0013] Further, the hoisting device and the dust collector are installed on a steel frame structure.

[0014] Further, a filter bag is arranged in the dust removal main pipe, and activated carbon is arranged in the filter bag.

[0015] The beneficial effects of the present utility model are as follows:

[0016] (1) In the use state of the present utility model, it is completely enclosed. After the tundish is tilted, the dust is enclosed in the dust removal enclosure. After being sprayed by the atomizing spray pipe, the purpose of bonding the dust and reducing the temperature can be achieved, and the rising part of the dust and harmful gases can be absorbed and treated by the dust collector.

[0017] (2) An opening is arranged at the position of the dust removal enclosure close to the running track of the tundish tilting car, and the tundish tilting car can conveniently enter and exit the dust removal enclosure through the track.

[0018] (3) The dust removal cover plate of the present utility model rotates from the horizontal state to an angle of 70 degrees with the horizontal. When the cold steel blocks attached in the tundish are very large, they can be transferred by overhead crane from above the dust removal enclosure.

[0019] (4) A filter bag is arranged in the dust removal main pipe of the present utility model, and activated carbon is arranged in the filter bag, which can filter dust to the maximum extent and adsorb a large amount of harmful gases at the same time.

[0020] (5) The hoisting device, the dust collector, and the high-pressure water pipe valve of the present utility model are respectively electrically connected to a controller. The operator can control the start or stop of the hoisting device, the dust collector, and the high-pressure water pipe valve with one key operation, and automatically control the rotation of the dust removal cover plate, the spraying of the atomizing spray pipe, the dust suction or closing of the dust collector. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the present utility model;

[0022] Figure 2 is a top view structural schematic diagram of the present utility model;

[0023] Wherein: 1, dust removal enclosure; 2, dust removal cover plate; 3, atomizing spray pipe; 4, dust curtain; 5, hoisting device; 6, anti-falling chain; 7, dust suction pipe; 8, dust removal main pipe; 9, dust collector; 10, tundish; 11, tundish tilting car; 12, track; 13, steel structure; 14, motor; 15, controller; 16, high-pressure water pipe; 17, valve; 18, dust removal valve; 19, steel wire rope. Specific embodiments

[0024] To make the objectives, technical solutions and advantages of the present utility model clearer, the following will combine the attached Figures 1 - 2 to clearly and completely describe the technical solutions of the present utility model. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of the embodiments. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art shall fall within the protection scope of the present utility model.

[0025] This embodiment provides a tundish tilting dust removal device for continuous casting, the structure of which is as Figure 1 、 Figure 2 shown, including a dust removal enclosure 1, a dust removal cover plate 2, an atomizing spray pipe 3, a dust curtain 4, a hoisting device 5, and a dust collector 6. The dust removal enclosure 1 is arranged around the tilting area of the tundish 10, and an opening is provided at the position where the dust removal enclosure 1 is close to the running track 12 of the tundish tilting car 11; the dust removal cover plate 2 is hinged to the top of the side of the dust removal enclosure 1 away from the opening; the hoisting device 5 pulls the dust removal cover plate 2 to rotate by a certain angle; the dust curtain 4 is installed at the edge corresponding to the opening side of the dust removal cover plate 2 and the dust removal enclosure 1. When the dust removal cover plate 2 is in a horizontal state, the dust curtain 4 can completely block the opening of the dust removal enclosure 1; the atomizing spray pipe 3 is installed inside the dust removal cover plate 2 for atomizing and spraying water; the dust collector 6 is communicated with the upper part of the dust removal enclosure 1 to suck away the dust.

[0026] The embodiment is further optimized as

[0027] as Figure 1 shown, an anti-falling chain 9 is arranged between the dust removal cover plate 2 and the dust removal enclosure 1, and the anti-falling chain 9 makes the rotation angle of the dust removal cover plate 2 less than 90 degrees. The optimal rotation angle of the dust removal cover plate 2 is 70 degrees, which is convenient for the dust removal cover plate 2 to return to the horizontal position and is beneficial to hoisting large pieces of cold steel out of the dust removal enclosure 1.

[0028] as Figure 1 、 Figure 2 shown, the hoisting device 5 rotates the dust removal cover plate 2 by pulling the steel wire rope 19.

[0029] As Figure 1 shown, the atomizing spray pipe 3 is connected to the high-pressure water pipe 16, and a valve 17 is provided on the high-pressure water pipe 16.

[0030] As Figure 2 shown, the hoisting device 5, the dust collector 6, and the high-pressure water pipe valve 17 are respectively electrically connected to the controller 15. The controller 15 controls the switches of the hoisting device 5, the dust collector 6, and the atomizing spray pipe 3 through the motor 14, the dust removal valve 18, and the valve 17 respectively.

[0031] As Figure 1 、 Figure 2 shown, the dust collector 6 includes a dust suction pipe 7 and a dust collection main pipe 8. One end of the dust suction pipe 7 is communicated with the dust suction port at the upper part of the dust collection enclosure, and the other end of the dust suction pipe 7 is communicated with the dust collection main pipe 8. The distance between the dust suction port and the upper part of the dust collection enclosure 1 is 200 mm.

[0032] As Figure 1 shown, the hoisting device 5 and the dust collector 6 are installed on the steel frame 13 structure.

[0033] A filter bag is arranged in the dust collection main pipe 8, and activated carbon is arranged in the filter bag.

[0034] The usage method of the present utility model:

[0035] The tundish 10 is hoisted onto the tipping car 11. The operator operates to transfer the tipping car 11 to the tipping position inside the dust collection enclosure 1, and places the dust collection cover plate 2 in the horizontal position. This dust collection device is in a completely sealed state. The operator operates with one key for the tipping work of the tundish 10. The dust removal valve 18 on the dust collection main pipe 8 will automatically open, the dust suction pipe 7 starts to work, and at the same time, the atomizing spray pipe 3 inside the dust collection cover plate 2 sprays water mist to prevent the diffusion of dust. After the tipping is completed, the operator operates with one key, the dust removal valve 18 closes, and the atomizing spray pipe 3 closes. The operator drives the tipping car out. If there are large pieces of cold steel, the operator operates the controller 15 to adjust the dust collection cover plate 2 to an angle of 70° with the horizontal. The overhead crane can lift out the large pieces of cold steel from the top of the dust collection enclosure 1. The dust collection enclosure 1 does not affect the hoisting and transfer of large pieces of cold steel. After the hoisting is completed, operate the controller 15 to adjust the dust collection cover plate 2 to the horizontal position.

[0036] In addition to the above embodiments, the present utility model can also have other implementation manners; all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope required by the present utility model.

Claims

1. A continuous casting tundish tipping dust removal device, characterized in that: The utility model comprises a dust removal enclosure (1), a dust removal cover plate (2), an atomizing spray pipe (3), a dust curtain (4), a hoisting device (5), and a dust collector (6). The dust removal enclosure (1) is arranged around the tipping area of ​​the tundish (10), and an opening is arranged on the dust removal enclosure (1) near the running track (12) of the tundish tipping vehicle (11); the dust removal cover plate (2) is hinged to the top of the dust removal enclosure (1) on the side away from the opening; the hoisting device (5) pulls the dust removal cover plate (2) to rotate at a certain angle; the dust curtain (4) is installed on the edge of the dust removal cover plate (2) corresponding to the opening side of the dust removal enclosure (1), and when the dust removal cover plate (2) is in a horizontal state, the dust curtain (4) can completely block the opening of the dust removal enclosure (1); the atomizing spray pipe (3) is installed on the inner side of the dust removal cover plate (2) for atomizing spraying of water; the dust collector (6) is connected to the upper part of the dust removal enclosure (1) to suck away dust.

2. The continuous casting tundish tipping dust removal device according to claim 1 is characterized in that: An anti-falling chain (9) is arranged between the dust removal cover plate (2) and the dust removal enclosure (1), and the anti-falling chain (9) enables the dust removal cover plate (2) to rotate at an angle less than 90 degrees.

3. The continuous casting tundish tipping dust removal device according to claim 2 is characterized in that: The maximum rotation angle of the dust removal cover plate (2) is 70 degrees.

4. The continuous casting tundish tipping dust removal device according to claim 1 is characterized in that: The hoisting device (5) rotates the dust removal cover plate (2) by pulling the steel wire rope (19).

5. The continuous casting tundish tipping dust removal device according to claim 1 is characterized in that: The atomizing spray pipe (3) is connected to a high-pressure water pipe (16), and a valve (17) is provided on the high-pressure water pipe (16).

6. The continuous casting tundish tipping dust removal device according to claim 5, characterized in that: The hoisting device (5), the dust collector (6) and the high-pressure water pipe valve (17) are respectively electrically connected to the controller (15), and the controller (15) controls the switching of the hoisting device (5), the dust collector (6) and the atomizing spray pipe (3) through the motor (14), the dust removal valve (18) and the valve (17).

7. The continuous casting tundish tipping dust removal device according to claim 1, characterized in that: The dust collector (6) comprises a dust suction pipe (7) and a dust removal main pipe (8); one end of the dust suction pipe (7) is connected to a dust suction port on the upper part of the dust removal enclosure, and the other end of the dust suction pipe (7) is connected to the dust removal main pipe (8).

8. The continuous casting tundish tipping dust removal device according to claim 7, characterized in that: The distance between the dust suction port and the upper part of the dust removal enclosure (1) is 200 mm.

9. The continuous casting tundish tipping dust removal device according to claim 7, characterized in that: A filter bag is arranged in the dust removal main pipe (8), and activated carbon is arranged in the filter bag.

10. The continuous casting tundish tipping dust removal device according to claim 1, characterized in that: The hoisting device (5) and the dust collector (6) are installed on a steel frame (13) structure.

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