Reversible dust collection device suitable for slag pool

Abstract

The turnover dust collection device comprises a traction mechanism, a dust collection cover, a telescopic pipeline, a bent pipe I, a bent pipe II and a main exhaust pipe, the dust collection cover is arranged on the slag pool in an openable and closable mode, the traction mechanism is connected with the dust collection cover and used for driving the dust collection cover to be turned over and opened, one end of the bent pipe I is communicated with the top end of the dust collection cover, and the other end of the bent pipe II is communicated with the main exhaust pipe. Compared with the prior art, dust and water vapor can be effectively prevented from escaping, operation is convenient, and the structure is simple.

Description

Technical Field

[0001] This utility model relates to the technical field of treating environmental pollutants generated during steel production, and in particular to the technical field of a reversible dust collection device suitable for slag ponds. Background Technology

[0002] During the steel production and smelting process, a large amount of high-temperature molten steel slag is generated. To effectively treat the slag and separate iron and other impurities, it needs to undergo water treatment, cooling, and hot quenching before a series of subsequent processing steps to achieve comprehensive resource utilization. This process generates a large amount of dust and water vapor, significantly impacting the surrounding environment and on-site operations. With the increasing national environmental protection efforts, in May 2018, the Ministry of Ecology and Environment released a draft for comments on the "Work Plan for Ultra-Low Emission Transformation of Steel Enterprises," proposing that the particulate matter emission concentration during this process should be less than or equal to 10 mg / m³. 3 Therefore, it is crucial to collect and treat pollutants during the slag water injection and cooling process. Existing technologies mainly involve either no relevant measures or simply using enclosures.

[0003] Without such measures, the production site environment is extremely harsh, posing potential safety hazards and impacting the health of workers.

[0004] While using barriers improves safety, their effectiveness is limited, allowing dust and moisture to escape. Furthermore, the barriers need to be moved when dumping and cleaning molten slag, making operations inconvenient. Summary of the Invention

[0005] The purpose of this invention is to solve the problems in the prior art and propose a reversible dust collection device suitable for slag pits, which can effectively prevent dust and water vapor from escaping, and is easy to operate and has a simple structure.

[0006] To achieve the above objectives, this utility model proposes a reversible dust collection device suitable for slag pits, including a pulling mechanism, a dust collection hood, a telescopic pipe, a bend I, a bend II, and a main exhaust pipe. The dust collection hood is openable and closable on the slag pit. The pulling mechanism is connected to the dust collection hood to drive it to rotate and open. One end of the bend I is connected to the top of the dust collection hood, and the other end of the bend I is connected to one end of the bend II through the telescopic pipe. The other end of the bend II is rotatably connected to the main exhaust pipe.

[0007] Preferably, the dust collection hood is a hollow trapezoidal structure with an open bottom and a closed top. A support frame is provided around the lower perimeter of the dust collection hood, and a rotating shaft is provided at the rear end of the support frame. Rotatable bushings are fitted at both ends of the rotating shaft, and the bushings are fixedly connected to a support baffle plate provided on the slag pool.

[0008] Preferably, the pulling mechanism includes a movable pulley, a fixed pulley, a metal rope, a fixed base, and a winch. The fixed base is provided with a fixed pulley, and the front side of the dust collection hood is provided with a movable pulley. A metal rope is wound around the movable pulley and the fixed pulley. One end of the metal rope is fixedly connected to a rope fixing block on the fixed base, and the other end of the metal rope is fixedly connected to the winch. The winch is used to wind the metal rope.

[0009] Preferably, the telescopic pipe includes an outer sleeve and a telescopic tube inserted inside the outer sleeve, and a sealing ring is provided between the outer sleeve and the telescopic tube.

[0010] Preferably, the main exhaust pipe is sleeved on the corresponding end of the bend II, and a sealing ring is provided between the main exhaust pipe and the bend II.

[0011] Preferably, the slag pool is provided with a support mechanism for supporting the dust collection hood. The support mechanism includes a base, a support arm, rollers, an axle, an upper baffle, a lower baffle, and a baffle wheel body. The base is provided with an upper baffle and a lower baffle. The rear end of the upper baffle is provided with a downwardly inclined guide rail, and the front end of the lower baffle is provided with an upwardly inclined guide rail. One end of the support arm is hinged to the dust collection hood, and the other end is provided with a slidable axle. The end of the axle facing the upper baffle is provided with a roller that is close to the upper baffle and rolls on the base. The base is provided with a baffle wheel body close to the downward guide rail on the path of the roller rolling backward.

[0012] The beneficial effects of this utility model are as follows: This utility model features an openable and closable dust collection hood installed on the slag pool. A pulling mechanism is connected to the dust collection hood to drive it to flip open. One end of bend I is connected to the top of the dust collection hood, and the other end of bend I is connected to one end of bend II through a telescopic pipe. The other end of bend II is rotatably connected to the main exhaust pipe. The dust collection hood effectively prevents dust and water vapor from escaping. The pulling mechanism pulls the dust collection hood to flip open, facilitating the dumping and cleaning of molten slag. The combination of bend I, telescopic pipe, bend II, and main exhaust pipe transports dust and water vapor to the corresponding processing equipment for centralized treatment. Compared with the prior art, this utility model can effectively prevent dust and water vapor from escaping, and is easy to operate and has a simple structure.

[0013] The features and advantages of this utility model will be described in detail through embodiments and accompanying drawings. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a reversible dust collection device suitable for slag pits according to this utility model;

[0015] Figure 2 yes Figure 1 Schematic diagram of the A-direction section;

[0016] Figure 3 This is a diagram showing the dust collection hood in operation;

[0017] Figure 4 This is a top view of the support structure.

[0018] In the diagram: 1-Pull mechanism, 2-Dust collection hood, 3-Telescopic pipe, 4-Bend I, 5-Bend II, 6-Main exhaust pipe, 7-Support frame, 8-Support baffle, 9-Slag pit, 10-Sealing ring, 11-Moving pulley, 12-Fixed pulley, 13-Metal rope, 14-Fixed seat, 15-Winder, 20-Shaft sleeve, 21-Rotating shaft, 31-Outer sleeve, 32-Telescopic pipe, 90-Support mechanism, 901-Base, 902-Support arm, 903-Roller, 904-Axle, 905-Upper baffle, 906-Lower baffle, 907-Guide wheel body, 908-Downward guide rail, 909-Upward guide rail, 910-Backward rolling path, 911-Forward rolling path. Detailed Implementation

[0019] See Figure 1 , Figure 2 , Figure 3 and Figure 4 This utility model discloses a reversible dust collection device suitable for slag pits, comprising a pulling mechanism 1, a dust collection hood 2, a telescopic pipe 3, a bend I4, a bend II5, and a main exhaust pipe 6. The dust collection hood 2 is openable and closable on the slag pit 9. The pulling mechanism 1 is connected to the dust collection hood 2 to drive it to rotate and open. One end of the bend I4 is connected to the top of the dust collection hood 2, and the other end of the bend I4 is connected to one end of the bend II5 through the telescopic pipe 3. The other end of the bend II5 is rotatably connected to the main exhaust pipe 6.

[0020] The dust collection hood 2 is a hollow trapezoidal structure with an open bottom and a closed top. A support frame 7 is provided around the lower perimeter of the dust collection hood 2. A rotating shaft 21 is provided at the rear end of the support frame 7. Rotatable bushings 20 are fitted at both ends of the rotating shaft 21. The bushings 20 are fixedly connected to the support baffle 8 provided on the slag pool 9.

[0021] The pulling mechanism 1 includes a movable pulley 11, a fixed pulley 12, a metal rope 13, a fixed base 14, and a winch 15. The fixed base 14 is provided with a fixed pulley 12, and the front side of the dust collection hood 2 is provided with a movable pulley 11. A metal rope 13 is wound around the movable pulley 11 and the fixed pulley 12. One end of the metal rope 13 is fixedly connected to a rope fixing block 16 on the fixed base 14, and the other end of the metal rope 13 is fixedly connected to the winch 15. The winch 15 is used to wind the metal rope 13.

[0022] The telescopic pipe 3 includes an outer sleeve 31 and a telescopic pipe 32 inserted inside the outer sleeve 31, and a sealing ring 10 is provided between the outer sleeve 31 and the telescopic pipe 32.

[0023] The main exhaust pipe 6 is sleeved on the corresponding end of the bend II5, and a sealing ring 10 is provided between the main exhaust pipe 6 and the bend II5.

[0024] The slag pool 9 is provided with a support mechanism 90 for supporting the dust collection hood 2. The support mechanism 90 includes a base 901, a support arm 902, a roller 903, a wheel axle 904, an upper baffle 905, a lower baffle 906, and a baffle wheel body 907. The base 901 is provided with an upper baffle 905 and a lower baffle 906. The rear end of the upper baffle 905 is provided with a downwardly inclined guide rail 908. The front end of the lower baffle 906 is provided with an upwardly inclined guide rail 909. One end of the support arm 902 is hinged to the dust collection hood 2, and the other end is provided with a slidable wheel axle 904. The end of the wheel axle 904 facing the upper baffle 905 is provided with a roller 903 that is close to the upper baffle 905 and rolls on the base 901. The base 901 is provided with a baffle wheel body 907 close to the downward guide rail 908 on the path of the roller 903 rolling backward.

[0025] The working process of this utility model:

[0026] In the operation of this utility model, a reversible dust collection device suitable for slag pits, the dust and water vapor generated by slag flushing enter the dust collection hood 2, and then pass through the bend pipe I4, the telescopic pipe 3, the bend pipe II5 and the main exhaust pipe 6 in sequence, and finally enter the corresponding treatment equipment for centralized treatment.

[0027] When the dust collection hood 2 is opened, the winch 15 is started. The winch 15 winds the metal rope 13, and the moving pulley 11 and the fixed pulley 12 pull the dust collection hood 2 to rotate clockwise to open it.

[0028] During the clockwise rotation of the dust collection hood 2 to open, the support arm 902 pulls the roller 903 to roll along the backward rolling path 910 on the base 901. When the roller 903 passes the guide wheel body 907, the winch 15 stops working. At this time, the guide wheel body 907 blocks the front end of the roller 903. When the dust collection hood 2 closes by rotating counterclockwise, the dust collection hood 2 pushes the roller 903 forward through the support arm 902. However, the roller 903 is blocked by the guide wheel body 907 and cannot move forward, thus supporting the dust collection hood 2, preventing the dust collection hood 2 from closing, improving the reliability of the dust collection hood 2 after opening, and further improving the safety of use.

[0029] When the dust collection hood 2 needs to be closed, the winch 15 is started and rotates the dust collection hood 2 clockwise. The support arm 902 pulls the roller 903 backward along the base 901. When the roller 903 passes the downward guide rail 908, the downward guide rail 908 forces the roller 903 to move downward. The roller 903 drives the axle 904 to slide downward, causing the roller 903 to move from the backward rolling path 910 into the forward rolling path 911. In this way, the roller 903 avoids the stop wheel body 907. Then, start the winch 15 to unwind. At this time, the dust collection hood 2 rotates counterclockwise to close under its own weight. During the closing process, the dust collection hood 2 pushes the roller 903 to roll forward along the forward rolling path 911 through the support arm 902. When the roller 903 passes the upward guide rail 909, the upward guide rail 909 forces the roller 903 to move upward, so that the roller 903 re-enters the backward rolling path 910 from the forward rolling path 911. At this time, the dust collection hood 2 also completes to close.

[0030] The above embodiments are illustrative of the present invention and are not intended to limit the present invention. Any simple modifications to the present invention are within the protection scope of the present invention.

Claims

1. A reversible dust collection device suitable for slag pits, characterized in that: It includes a pulling mechanism (1), a dust collection hood (2), a telescopic pipe (3), a bend I (4), a bend II (5), and a main exhaust pipe (6). The dust collection hood (2) is openable and closable on the slag pool (9). The pulling mechanism (1) is connected to the dust collection hood (2) to drive it to rotate and open. One end of the bend I (4) is connected to the top of the dust collection hood (2). The other end of the bend I (4) is connected to one end of the bend II (5) through the telescopic pipe (3). The other end of the bend II (5) is rotatably connected to the main exhaust pipe (6).

2. The reversible dust collection device suitable for slag pits as described in claim 1, characterized in that: The dust collection hood (2) is a hollow trapezoidal structure with an open bottom and a closed top. A support frame (7) is provided around the lower end of the dust collection hood (2). A rotating shaft (21) is provided at the rear end of the support frame (7). Rotary bushings (20) are fitted at both ends of the rotating shaft (21). The bushings (20) are fixedly connected to the support baffle (8) provided on the slag pool (9).

3. The reversible dust collection device suitable for slag pits as described in claim 1, characterized in that: The pulling mechanism (1) includes a movable pulley (11), a fixed pulley (12), a metal rope (13), a fixed seat (14), and a winch (15). The fixed seat (14) is provided with a fixed pulley (12), and the front side of the dust collection hood (2) is provided with a movable pulley (11). The movable pulley (11) and the fixed pulley (12) are wound with a metal rope (13). One end of the metal rope (13) is fixedly connected to a rope fixing block (16) on the fixed seat (14), and the other end of the metal rope (13) is fixedly connected to the winch (15). The winch (15) is used to wind the metal rope (13).

4. The reversible dust collection device suitable for slag pits as described in claim 1, characterized in that: The telescopic pipe (3) includes an outer sleeve (31) and a telescopic pipe (32) inserted inside the outer sleeve (31), and a sealing ring (10) is provided between the outer sleeve (31) and the telescopic pipe (32).

5. A reversible dust collection device suitable for slag pits as described in claim 1, characterized in that: The main exhaust pipe (6) is fitted onto the corresponding end of the bend pipe II (5), and a sealing ring (10) is provided between the main exhaust pipe (6) and the bend pipe II (5).

6. The reversible dust collection device suitable for slag pits as described in claim 1, characterized in that: The slag pit (9) is provided with a support mechanism (90) for supporting the dust collection hood (2). The support mechanism (90) includes a base (901), a support arm (902), a roller (903), a wheel axle (904), an upper baffle (905), a lower baffle (906), and a baffle wheel body (907). The base (901) is provided with an upper baffle (905) and a lower baffle (906). The rear end of the upper baffle (905) is provided with a downwardly inclined guide rail (908). The front end of the lower baffle (906) is provided with a downwardly inclined guide rail (908). The end is provided with an upward guide rail (909) that is inclined upward. One end of the support arm (902) is hinged to the support dust collection cover (2), and the other end is provided with a slidable axle (904). The end of the axle (904) facing the upper baffle (905) is provided with a roller (903) that is close to the upper baffle (905) and rolls on the base (901). The base (901) is provided with a baffle body (907) that is close to the downward guide rail (908) on the backward rolling path (910) of the roller (903).

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