Efficient rotary dust removal device for steel scrap cutting in steelmaking workshop

Abstract

The invention relates to the technical field of air pollution dust removal, in particular to an efficient rotary dust removal device for steel scrap cutting in a steelmaking workshop, which comprises a mounting frame, a dust removal box is fixedly connected to the top of the mounting frame, a dust removal pipeline is arranged at the bottom of the dust removal box, a rotating mechanism is arranged at one end of the dust removal pipeline, and the rotating mechanism comprises a communicating pipe. The top of the communicating pipe is communicated and fixedly connected to the dust removal pipeline through a first flange plate; by arranging the rotating mechanism, a second motor is started, an output shaft of the second motor drives a second gear to rotate, the second gear drives a first gear to rotate, the first gear drives a second flange plate to rotate, the second flange plate drives a dust removal air pipe and a dust removal cover to rotate, and the dust removal cover rotates according to needs; and dust can be effectively removed in a rotating radius area, and whether a crane is lifted to approach or not can be detected through a crane detector, so that the function of automatically avoiding the lifting crane is realized.

Description

Technical Field

[0001] The invention relates to the technical field of atmospheric pollution dust removal, in particular to a high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop. Background Art

[0002] A large amount of scrap steel is generated during the steel production process. Most of the scrap steel generated during the production process of steelmaking workshops are irregular in shape and the cutting time is not fixed. A large amount of high-temperature dust and smoke will be generated during the cutting of scrap steel. If direct and effective dust removal cannot be arranged, on the one hand, solid waste pollution will affect the healthy working environment of production operators. On the other hand, a large amount of smoke and dust generated during the short period of scrap steel cutting will overflow into the factory and affect other processes in the steelmaking workshop.

[0003] A Chinese patent with announcement number CN204934174U discloses a movable top-suction dust hood, which includes a dust removal pipe, a dust hood body, a track, a motor and a reducer. The dust removal pipe is fixed above the slag pool, and the track is installed on both sides of the slag pool through a bracket. The front end of the track is located at the scrap steel cutting position in the slag pool, and the rear end of the track is located outside the slag pool. The height of the track is higher than the height of the operator. The upper end of the dust hood body is connected to the dust removal pipe, and the lower sides of the dust hood body are slidably matched with the track. The motor and the reducer are installed on the dust hood body, and the motor and the reducer are engaged with the track through the drive wheel. By adopting a movable top-suction dust hood, on the one hand, it avoids the phenomenon that the original fixed top-suction dust hood affects the operation of the magnetic disk crane to transport scrap steel. On the other hand, it overcomes the problem of insufficient suction of the original side-suction dust hood, and successfully solves the difficult problem of smoke and dust control in the slag yard scrap steel cutting. The on-site cutting operation is completely unaffected by the dust removal facilities, and no smoke and dust escapes during the burning and cutting of scrap steel, effectively improving the working environment of the operation site and greatly reducing the impact on the health of the operators.

[0004] In the current existing technology, the dust hood is moved as a whole by means of a track. Although the dust removal effect can be achieved, the span is large, and the track and the dust hood occupy a large area. When a vehicle passes by, it is impossible to avoid it in time. In particular, if a workshop is equipped with multiple dust hoods, it will cause the workshop to be more crowded, affecting normal production.

[0005] To this end, the present invention provides a high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop. Summary of the Invention

[0006] To this end, the technical problem to be solved by the present invention is to overcome the problem in the prior art that the dust hood is moved as a whole through a track. Although the dust removal effect can be achieved, the span is large, and the track and the dust hood occupy a large area. When a vehicle passes by, it is impossible to avoid it in time. In particular, if a workshop is equipped with multiple dust hoods, it will cause the workshop to be more crowded, affecting normal production.

[0007] In order to solve the above technical problems, the present invention provides a high-efficiency rotating dust removal device for scrap steel cutting in a steelmaking workshop, comprising a mounting frame, a dust removal box is fixedly connected to the top of the mounting frame, a dust removal duct is provided at the bottom of the dust removal box, a rotating mechanism is provided at one end of the dust removal duct, the rotating mechanism comprises a connecting pipe, the top of the connecting pipe is connected and fixed to the dust removal duct through a first flange; the bottom of the connecting pipe is rotatably connected to a first gear through a bearing; a dust removal air duct is provided below the connecting pipe, one end of the dust removal air duct is fixed to the first gear through a second flange; the other end of the dust removal air duct is connected and fixed to a dust removal cover; a rectangular plate is sleeved on the outer wall of the connecting pipe, a second motor is fixed to the bottom of the rectangular plate, a second gear is fixed to the output shaft of the second motor, and the second gear is meshed with the first gear; an electric valve is provided on the dust removal duct.

[0008] In one embodiment of the present invention, a driving detector is installed at one end of the dust removal air duct close to the dust removal cover, and the driving detector is electrically connected to the second motor.

[0009] In one embodiment of the present invention, a rotating column is sleeved on the outer side of one end of the dust removal duct close to the second flange, the bottom of the rotating column is rotatably connected to the base through a bearing, and a support plate is fixed on the side wall of the rotating column, and the support plate is arranged at the bottom of the dust removal duct.

[0010] In one embodiment of the present invention, a water pipe is fixedly connected to the top of the dust removal hood through a fixed block, one end of the water pipe is connected to a water inlet pipe, and the water inlet pipe is externally connected to a water tank and a water pump; a plurality of nozzles are linearly arranged at the bottom of the water pipe, and a flame detector is embedded in the bottom of the dust removal hood, and the flame detector is electrically connected to the water pump.

[0011] In one embodiment of the present invention, the installation angles of the nozzles are all greater than 60°, and the installation angles of the nozzles are all less than 90°.

[0012] In one embodiment of the present invention, a top plate is fixedly connected to the top inner wall of the dust removal box, and a plurality of dust removal bags are fixedly connected to the top plate in a linear arrangement; two drop hoppers are fixedly connected to the bottom of the dust removal box; an air outlet is fixedly connected to the top side wall of the dust removal box, and a mounting plate is fixedly connected to the top outer wall of the dust removal box, and a fan is fixedly connected to the mounting plate, and the fan cooperates with the air outlet.

[0013] In one embodiment of the present invention, a connecting plate is provided inside the dust removal box, and a plurality of swing rods are fixedly connected to the side wall of the connecting plate, and the swing rods are respectively provided on one side of the dust removal bag; a driving mechanism is provided on the other side wall of the connecting plate.

[0014] In one embodiment of the present invention, the driving mechanism includes a rack fixedly connected to a connecting plate; a first motor is fixedly connected to the outer wall of the dust removal box, the output shaft of the first motor is fixedly connected to a disc, and a limiting column is fixedly connected to the disc; a handle is rotatably connected to the inner wall of the dust removal box through a pin shaft, a limiting opening is provided at one end of the handle, the limiting column slides in the limiting opening, and a fan-shaped gear is fixedly connected to the other end of the handle, and the fan-shaped gear is meshed with the rack.

[0015] In one embodiment of the present invention, two sliders are fixedly connected to the side wall of the rack away from the swing rod, two fixed plates are fixedly connected to the inner wall of the dust removal box, a sliding rod is fixedly connected between the two fixed plates, and the sliding rod slides in the two sliders.

[0016] In one embodiment of the present invention, the bottoms of two of the swing arms are fixed with a first movable plate, the bottoms of two adjacent swing arms are fixed with a second movable plate, the first movable plates are respectively plugged into the adjacent second movable plates, and the bottom ends of the first movable plate and the second movable plate are both fixed with rubber hammers for hammering down the inner wall of the hopper.

[0017] The above technical solution of the present invention has the following advantages over the prior art:

[0018] The present invention describes an efficient rotary dust removal device for scrap steel cutting in a steelmaking workshop. A rotating mechanism is provided, and a second motor is turned on. The second gear is driven to rotate by the output shaft of the second motor, and the first gear is driven to rotate by the second gear. The second flange is driven to rotate by the first gear, and the dust removal air duct and the dust removal cover are driven to rotate by the second flange. The dust removal cover rotates as needed, and effective dust removal can be performed within the rotation radius area. The vehicle detector can also detect whether a crane is approaching, thereby realizing the function of automatically avoiding the crane.

[0019] The present invention relates to a high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop. A flame detector is provided. During the dust removal process, the dust removal hood detects a flame through the flame detector, thereby transmitting a signal to the system. The system controls the water pump to start, and the water in the water tank is sprayed toward the sparks through the water inlet pipe, the water delivery pipe and the nozzle, thereby preventing the sparks from being sucked in and damaging the pipes in the device.

[0020] The high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop described in the present invention is configured by setting a swing lever, turning on a first motor, so that the output shaft of the first motor drives a disc to rotate, which drives a limit column to rotate through the disc, and the limit column drives a handle to reciprocate around a pin shaft by squeezing a limit opening, which drives a sector gear to reciprocate through the handle, which drives a rack to reciprocate through the sector gear, which drives a connecting plate to reciprocate through the rack, and which drives a swing lever to reciprocate through the connecting plate, thereby realizing the function of beating a dust bag, thereby realizing the function of cleaning and separating solid waste particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the contents of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0022] Figure 1 is a perspective view of the present invention;

[0023] Figure 2 is a cross-sectional view of the dust removal air duct in the present invention;

[0024] Figure 3 is a perspective view of the first gear and the second gear in the present invention;

[0025] Figure 4 It is a three-dimensional diagram of the dust cover of the present invention;

[0026] Figure 5 is a cross-sectional view of the dust removal box of the present invention;

[0027] Figure 6 is a three-dimensional diagram of the swing lever of the present invention;

[0028] Figure 7 is a three-dimensional diagram of the sector gear in the present invention;

[0029] Description of the accompanying drawings: 1. Mounting frame; 2. Dust removal box; 21. Mounting plate; 211. Fan; 212. Air outlet; 22. Top plate; 221. Dust bag; 23. Drop hopper; 24. Swing rod; 241. Connecting plate; 242. Rack; 243. Slider; 244. Sliding rod; 245. Fixed plate; 246. First movable plate; 247. Second movable plate; 25. First motor; 251. Disc; 252. Sector gear; 253. Limiting column; 2 54. Handle; 255. Limiting port; 3. Dust removal duct; 31. Electric valve; 32. Connecting pipe; 321. First flange; 33. Dust removal duct; 331. Second flange; 332. First gear; 333. Second gear; 334. Second motor; 335. Rectangular plate; 336. Driving detector; 34. Rotating column; 35. Base; 36. Dust hood; 361. Nozzle; 362. Water pipe; 363. Water inlet pipe; 364. Flame detector. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it. However, the embodiments are not intended to limit the present invention.

[0031] See also Figure 1 - Figure 4 The present invention provides a high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop, comprising a mounting frame 1, a dust removal box 2 being fixedly connected to the top of the mounting frame 1, a dust removal pipe 3 being provided at the bottom of the dust removal box 2, a rotating mechanism being provided at one end of the dust removal pipe 3, the rotating mechanism comprising a connecting pipe 32, the top of the connecting pipe 32 being connected and fixed to the dust removal pipe 3 through a first flange 321; the bottom of the connecting pipe 32 being rotatably connected to a first gear 332 through a bearing; a dust removal air duct 33 being provided below the connecting pipe 32, one end of the dust removal air duct 33 being fixedly connected to the first gear 332 through a second flange 331; the other end of the dust removal air duct 33 being connected and fixedly connected to a dust removal cover 36; a rectangular plate 335 being sleeved on the outer wall of the connecting pipe 32, a second motor 334 being fixedly connected to the bottom of the rectangular plate 335, a second gear 333 being fixedly connected to the output shaft of the second motor 334, and the second gear 333 being meshed with the first gear 332; an electric valve 31 is provided on the dust removal pipe 3.

[0032] Most of the scrap steel produced in the production process of steelmaking workshops are of irregular shape and the cutting time is not fixed. A large amount of high-temperature dust and smoke will be generated during the scrap steel cutting. If direct and effective dust removal cannot be arranged, on the one hand, solid waste pollution will affect the healthy working environment of production operators. On the other hand, a large amount of smoke and dust generated during the short period of scrap steel cutting will overflow into the factory building, which will also affect other processes in the steelmaking workshop. In the existing technology, either a large transverse vehicle is used to move the dust removal hood 36 as a whole, or the entire span of the dust removal hood 36 is installed on a factory building with a large span of dozens of meters, or a large winch or hydraulic jacking device is used to rotate or lift the large dust removal hood as a whole, which greatly increases the investment cost of scrap steel cutting and directly reduces the effective efficiency of scrap steel cutting.

[0033] By setting a dust removal pipe 3 for connecting to the dust removal box 2, since the scrap steel cutting time is not fixed and the air volume required for dust removal is not large, a dust collector can be shared with other unorganized or organized smoke emission points; when the rotating mechanism provided by the present invention is in use, by turning on the second motor 334, the second gear 333 is driven to rotate by the output shaft of the second motor 334, the first gear 332 is driven to rotate by the second gear 333, the second flange 331 is driven to rotate by the first gear 332, and the dust removal air duct 33 and the dust removal cover 36 are driven to rotate by the second flange 331. The dust removal cover 36 rotates as needed, and effective dust removal can be carried out within the rotation radius area, and the function of automatically avoiding the crane vehicle can also be realized; it also has the advantages of not requiring a large transverse vehicle, not requiring the installation of a large dust removal cover 36, and not requiring a dedicated large air volume dust collector; wherein an electric valve 31 is provided, and the electric valve 31 can be automatically or manually opened and closed according to the needs of scrap steel cutting. On the one hand, the air volume distribution of the dust collector will not be wasted, and on the other hand, energy consumption can be saved. The present invention is not limited to the dust removal of scrap steel cutting, but also can be used to remove solid waste from other similar steelmaking workshops, chemical workshops and the like.

[0034] Furthermore, if Figure 2 and Figure 3 As shown, a driving detector 336 is installed at one end of the dust removal air duct 33 close to the dust removal cover 36 , and the driving detector 336 is electrically connected to the second motor 334 .

[0035] When in use, the vehicle detector 336 provided by the present invention detects whether a crane is approaching based on changes in the electric field and magnetic field. If a crane is approaching, the electric rotation mechanism is automatically started to quickly avoid the passing crane or the crane carrying large pieces of scrap steel, thereby protecting the entire rotating dust removal device.

[0036] Furthermore, if Figure 2 As shown, a rotating column 34 is sleeved on the outer side of one end of the dust removal duct 33 close to the second flange 331, and the bottom of the rotating column 34 is rotatably connected to the base 35 through a bearing. A support plate is fixed on the side wall of the rotating column 34, and the support plate is arranged at the bottom of the dust removal duct 33.

[0037] The rotating column 34 provided by the present invention is used to bear the load of the entire rotating mechanism when rotating, ensuring that the work is carried out under the premise of safety first, and ensuring that the entire rotating mechanism will not be twisted, deformed or even fall off; at the same time, because the scrap steel cutting area needs to lift slag pots, slag basins or large pieces of scrap steel, it is necessary to drive back and forth to work, the rotating mechanism drives the dust removal hood 36 to rotate as a whole, which can effectively avoid damage to the dust removal device caused by the driving and lifting; in addition, because the lifting and storage areas of large pieces of scrap steel are not fixed, the rotation angle can be manually adjusted at any angle within the rotation radius of the rotating mechanism, and the dust removal hood 36 can be dusted at a fixed point as needed. By providing a base 35, the stability of the entire dust removal device and the safety of rotation are guaranteed, ensuring that the entire mechanism can achieve the goal of controlling unorganized smoke emissions under the premise of safety first.

[0038] Furthermore, if Figure 4 As shown, a water pipe 362 is fixedly connected to the top of the dust removal hood 36 through a fixed block, one end of the water pipe 362 is connected and fixed to a water inlet pipe 363, and the water inlet pipe 363 is externally connected to a water tank and a water pump; a plurality of nozzles 361 are linearly arranged at the bottom of the water pipe 362, and a flame detector 364 is embedded in the bottom of the dust removal hood 36, and the flame detector 364 is electrically connected to the water pump.

[0039] When in use, the nozzle 361 provided by the present invention is used to atomize sparks generated during the cutting process. During the dust removal process, the dust removal hood 36 detects the flame through the flame detector 364, thereby transmitting the signal to the system, and controlling the water pump to start, and the water in the water tank is sprayed toward the sparks through the water inlet pipe 363, the water supply pipe 362 and the nozzle 361, to prevent the sparks from being inhaled and damaging the pipes in the device.

[0040] Furthermore, if Figure 4 As shown, the installation angle of the nozzle 361 is greater than 60°, and the installation angle of the nozzle 361 is less than 90°.

[0041] The installation angle of the nozzle 361 is between 60° and 90°, which is convenient for eliminating sparks within the dust cover 36 and, on the other hand, reduces smoke and dust from entering through the nozzle 361 and causing the nozzle 361 to be blocked.

[0042] Furthermore, if Figure 5 As shown, a top plate 22 is fixedly connected to the top inner wall of the dust removal box 2, and a plurality of dust removal bags 221 are fixedly connected to the top plate 22 in a linear arrangement; two drop hoppers 23 are fixedly connected to the bottom of the dust removal box 2; an air outlet duct 212 is fixedly connected to the top side wall of the dust removal box 2, and a mounting plate 21 is fixedly connected to the top outer wall of the dust removal box 2, and a fan 211 is fixedly connected to the mounting plate 21, and the fan 211 cooperates with the air outlet duct 212.

[0043] Solid waste pollution enters the dust removal box 2 through the dust removal air duct, is dusted by the dust removal bag 221, and is quickly purified and discharged under the action of the fan 211. The solid waste particles are finally dust-removed and filtered by the dust removal bag 221.

[0044] Furthermore, if Figure 5 and Figure 6 As shown, a connecting plate 241 is provided inside the dust removal box 2, and a plurality of swing rods 24 are fixedly connected to the side wall of the connecting plate 241. The swing rods 24 are respectively provided on one side of the dust removal bag 221; a driving mechanism is provided on the other side wall of the connecting plate 241.

[0045] When the swing rod 24 provided by the present invention is in use, the driving mechanism is turned on to drive the swing rod 24 to swing back and forth, and the dust on the dust bag 221 is knocked down into the drop hopper 23 by the swing rod 24, thereby improving the filtering effect of the dust bag 221.

[0046] Furthermore, if Figure 6 and Figure 7 As shown, the driving mechanism includes a rack 242 fixedly connected to the connecting plate 241; a first motor 25 is fixedly connected to the outer wall of the dust removal box 2, and the output shaft of the first motor 25 is fixedly connected to a disc 251, and a limiting column 253 is fixedly connected to the disc 251; a handle 254 is rotatably connected to the inner wall of the dust removal box 2 through a pin shaft, and a limiting opening 255 is provided at one end of the handle 254, and the limiting column 253 slides in the limiting opening 255, and the other end of the handle 254 is fixedly connected to a fan gear 252, and the fan gear 252 is engaged with the rack 242.

[0047] When the sector gear 252 and rack 242 provided by the present invention are in use, by turning on the first motor 25, the output shaft of the first motor 25 drives the disc 251 to rotate, and the disc 251 drives the limiting column 253 to rotate, and the limiting column 253 drives the handle 254 to reciprocate around the pin shaft by squeezing the limiting opening 255, and the sector gear 252 is driven to reciprocate by the handle 254, and the rack 242 is driven to reciprocate by the sector gear 252, and the connecting plate 241 is driven to reciprocate by the rack 242, and the swing rod 24 is driven to reciprocate by the connecting plate 241, thereby realizing the function of beating the dust bag 221.

[0048] Furthermore, if Figure 6 As shown, two sliders 243 are fixedly connected to the side wall of the rack 242 away from the swing rod 24, and two fixed plates 245 are fixedly connected to the inner wall of the dust removal box 2. A slide bar 244 is fixedly connected between the two fixed plates 245, and the slide bar 244 slides in the two sliders 243.

[0049] When the slider 243 and the slide bar 244 provided by the present invention are in use, the rack 242 drives the slider 243 to move during the movement of the rack 242 , and the slider 243 slides on the slide bar 244 , and the slide bar 244 limits the rack 242 to move in the horizontal direction.

[0050] Furthermore, if Figure 6 As shown, the bottoms of two of the swing arms 24 are fixed with a first movable plate 246, and the bottoms of two adjacent swing arms 24 are fixed with a second movable plate 247. The first movable plates 246 are respectively plugged into the adjacent second movable plates 247. The bottom ends of the first movable plates 246 and the second movable plates 247 are both fixed with rubber hammers for hammering down the inner wall of the hopper 23.

[0051] When the first movable plate 246 and the second movable plate 247 provided by the present invention are in use, the swing rod 24 drives the first movable plate 246 and the second movable plate 247 to move respectively during the swinging process, and the first movable plate 246 and the second movable plate 247 respectively drive the connected rubber hammer to move, and the rubber hammer hits the drop hopper 23, so as to facilitate the unified cleaning of dust on the inner wall of the dust removal box 2 and the drop hopper 23 at the bottom of the drop hopper 23.

[0052] Working principle: Most of the scrap steel produced in the production process of steelmaking workshops are of irregular shape and the cutting time is not fixed. A large amount of high-temperature dust and smoke will be generated during the scrap steel cutting. If a direct and effective dust removal cannot be arranged, on the one hand, solid waste pollution will affect the healthy working environment of production operators. On the other hand, a large amount of smoke and dust generated in a short period of time during the scrap steel cutting process will overflow into the factory building and also affect other processes in the steelmaking workshop; by turning on the second motor 334, the output shaft of the second motor 334 drives the second gear 333 to rotate, and the second gear 333 drives the first gear 332 to rotate, and the first gear 332 drives the second flange 331 to rotate, and the second flange 331 drives the dust removal air duct 33 and dust removal cover 36 to rotate. The dust removal cover 36 rotates as needed, and effective dust removal can be carried out within the rotation radius area. It can also realize the function of automatically avoiding the crane vehicle. It also has the advantages of not requiring a large lateral vehicle, not requiring the installation of a large dust removal cover 36, and not requiring a dedicated large air volume dust collector. An electric valve 31 is provided, which can be opened and closed automatically or manually according to the needs of scrap steel cutting. On the one hand, it does not waste the air volume distribution of the dust collector, and on the other hand, it can also save energy consumption. According to the changes in the electric and magnetic fields, it is detected whether a crane is approaching. If a crane is approaching, the electric rotation mechanism is automatically started to quickly avoid the crane passing by or the crane lifting large pieces of scrap steel, protecting the entire set of rotating dust removal devices. When in use, the rotating column 34 is used to bear the load of the entire rotating mechanism during rotation, ensuring that the work is carried out under the premise of safety first, and ensuring that the entire rotating mechanism will not be twisted, deformed or even fall off; at the same time, because the scrap steel cutting area needs to lift slag pots, slag basins or large pieces of scrap steel, it requires driving back and forth to work, the rotating mechanism drives the dust removal hood 36 to rotate as a whole, which can effectively avoid damage to the dust removal device caused by driving and lifting; in addition, because the lifting and storage area of large pieces of scrap steel is not fixed, the rotation angle can be manually adjusted at any angle within the rotation radius of the rotating mechanism, and the dust removal hood 36 can be dusted at a fixed point as needed. During the dust removal process, the dust removal hood 36 detects a flame through the flame detector 364, thereby transmitting a signal to the system, which controls the water pump to start, and the water in the water tank is sprayed towards the sparks through the water inlet pipe 363, the water supply pipe 362 and the nozzle 361 to prevent the sparks from being inhaled and damaging the pipes in the device.

[0053] By turning on the first motor 25, the output shaft of the first motor 25 drives the disc 251 to rotate, which in turn drives the limiting post 253 to rotate. The limiting post 253, by squeezing the limiting opening 255, drives the handle 254 to reciprocate about the pin. The handle 254 drives the sector gear 252 to reciprocate, which in turn drives the rack 242 to reciprocate, which in turn drives the connecting plate 241 to reciprocate, and which in turn drives the swing arm 24 to reciprocate, thereby beating the dust bag 221. During the swinging process, the swing arm 24 drives the first movable plate 246 and the second movable plate 247 to move, respectively. The first movable plate 246 and the second movable plate 247 respectively drive the connected rubber hammers to move. The rubber hammers strike the hopper 23, thereby cleaning the dust on the inner walls of the dust box 2 and the hopper 23 and depositing them at the bottom of the hopper 23. This achieves the function of cleaning and separating solid waste particles.

[0054] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop, comprising: a mounting frame (1); a dust removal box (2) fixedly connected to the top of the mounting frame (1); a dust removal duct (3) provided at the bottom of the dust removal box (2); a rotating mechanism provided at one end of the dust removal duct (3); and characterized in that: The rotating mechanism comprises a connecting pipe (32), the top of the connecting pipe (32) is connected and fixed to the dust removal pipe (3) through a first flange (321); the bottom of the connecting pipe (32) is rotatably connected to the first gear (332) through a bearing; a dust removal air duct (33) is provided below the connecting pipe (32), one end of the dust removal air duct (33) is fixed to the first gear (332) through a second flange (331); the other end of the dust removal air duct (33) is connected and fixed to a dust removal cover (36); a rectangular plate (335) is sleeved on the outer wall of the connecting pipe (32), a second motor (334) is fixed to the bottom of the rectangular plate (335), a second gear (333) is fixed to the output shaft of the second motor (334), and the second gear (333) is meshed with the first gear (332); and an electric valve (31) is provided on the dust removal pipe (3).

2. The high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop according to claim 1, characterized in that: A driving detector (336) is installed at one end of the dust removal air duct (33) close to the dust removal cover (36), and the driving detector (336) is electrically connected to the second motor (334).

3. The high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop according to claim 2, characterized in that: A rotating column (34) is sleeved on the outer side of one end of the dust removal air duct (33) close to the second flange (331), and the bottom of the rotating column (34) is rotatably connected to a base (35) through a bearing. A support plate is fixed to the side wall of the rotating column (34), and the support plate is arranged at the bottom of the dust removal air duct (33).

4. The high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop according to claim 3 is characterized in that: The top of the dust removal cover (36) is fixedly connected to a water pipe (362) via a fixed block, one end of the water pipe (362) is connected and fixedly connected to a water inlet pipe (363), and the water inlet pipe (363) is externally connected to a water tank and a water pump; a plurality of nozzles (361) are linearly arranged and installed at the bottom of the water pipe (362), and a flame detector (364) is embedded and installed at the bottom of the dust removal cover (36), and the flame detector (364) is electrically connected to the water pump.

5. The high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop according to claim 4, characterized in that: The installation angle of the nozzle (361) is greater than 60°, and the installation angle of the nozzle (361) is less than 90°.

6. The high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop according to claim 5, characterized in that: A top plate (22) is fixedly connected to the inner wall of the top end of the dust removal box (2), and a plurality of dust removal bags (221) are fixedly connected to the top plate (22) in a linear arrangement; two drop hoppers (23) are fixedly connected to the bottom of the dust removal box (2); an air outlet duct (212) is connected and fixedly connected to the top side wall of the dust removal box (2); a mounting plate (21) is fixedly connected to the outer wall of the top end of the dust removal box (2), and a fan (211) is fixedly connected to the mounting plate (21), and the fan (211) cooperates with the air outlet duct (212).

7. The high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop according to claim 6, characterized in that: A connecting plate (241) is provided inside the dust removal box (2), a plurality of swinging rods (24) are fixedly connected to the side wall of the connecting plate (241), and the swinging rods (24) are respectively provided on one side of the dust removal bag (221); a driving mechanism is provided on the other side wall of the connecting plate (241).

8. The high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop according to claim 7, characterized in that: The driving mechanism comprises a rack (242) fixedly connected to a connecting plate (241); a first motor (25) is fixedly connected to the outer wall of the dust removal box (2); an output shaft of the first motor (25) is fixedly connected to a disc (251); a limiting column (253) is fixedly connected to the disc (251); a handle (254) is rotatably connected to the inner wall of the dust removal box (2) via a pin shaft; a limiting opening (255) is provided at one end of the handle (254); the limiting column (253) slides in the limiting opening (255); a sector gear (252) is fixedly connected to the other end of the handle (254); and the sector gear (252) is meshed with the rack (242).

9. The high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop according to claim 8, characterized in that: Two sliders (243) are fixedly connected to the side wall of the rack (242) away from the swing rod (24), two fixed plates (245) are fixedly connected to the inner wall of the dust removal box (2), a slider (244) is fixedly connected between the two fixed plates (245), and the slider (244) slides in the two sliders (243).

10. The high-efficiency rotary dust removal device for scrap steel cutting in a steelmaking workshop according to claim 9, characterized in that: The bottoms of two of the swinging rods (24) are fixedly connected to a first movable plate (246), and the bottoms of two adjacent swinging rods (24) are fixedly connected to a second movable plate (247). The first movable plates (246) are respectively plugged into the adjacent second movable plates (247). The bottom ends of the first movable plates (246) and the second movable plates (247) are both fixedly connected to rubber hammers for hammering down the inner wall of the hopper (23).

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