Dust removal device of mining screening machine

Abstract

The invention discloses a dust removal device of a mining screening machine, and relates to the field of dust removal devices of screening machines, the dust removal device comprises a collection box, a dust suction pipe is arranged on one side of the collection box, an air fan is mounted on the other side of the collection box, a plurality of filter plates and a supporting plate for supporting the filter plates are arranged in the collection box, and a cleaning plate is arranged on the side, close to the air fan, of the supporting plate. The cleaning plate is slidably connected with the supporting plate in the arrangement direction of the filter plates, the collecting box is provided with a driving part used for driving the cleaning plate to move, a plurality of exhaust holes are formed in the side, close to the supporting plate, of the cleaning plate, an air supply part used for conveying high-speed airflow into the exhaust holes is fixedly arranged on the outer side of the collecting box, and a dust accumulation box is arranged at the lower end of the collecting box. And the collecting box is vertically provided with an ash discharging opening right opposite to the ash accumulating box, a guide plate is arranged in the collecting box, the guide plate and the cleaning plate are arranged in parallel, the guide plate and the cleaning plate synchronously move, and the side, close to the supporting plate, of the guide plate is vertically provided with an avoiding groove. The device has the effect of improving the dust removal convenience in the mineral separation process.

Description

Technical Field

[0001] The invention relates to the field of dust removal devices, in particular to a dust removal device for a mining screening machine. Background Art

[0002] In the mineral processing work, the ore screening process can remove large-diameter waste rock and meaningless soil components, and effectively enrich useful minerals. In order to improve the screening effect of the ore, the screening machine needs to drive the ore to roll continuously during the mineral processing process, which will generate a lot of dust. In order to prevent the free diffusion of dust from affecting the working environment, some mineral processing equipment will also be equipped with dust removal devices.

[0003] For related technologies, please refer to the Chinese patent with announcement number CN219273919U, which discloses a dust removal device for producing quartz stone by a drum screening machine, including a transfer box, one end of which is fixedly connected to a receiving box, the other end of which is fixedly installed with a discharge box, a spiral rotating rod movably installed inside the transfer box, and a dust collection box fixedly installed at the bottom of the transfer box. This device transports quartz stone through the spiral rotating rod in the transfer box, absorbs dust during the movement of the quartz stone, and can be installed at the feed and discharge of the drum screening machine, without affecting the normal use of the drum screening machine.

[0004] With regard to the above-mentioned related technologies, the beneficiation of ore is usually carried out in large quantities, and a large amount of dust will be generated in this process. When the dust removal device is continuously running, the filter plate in the dust collection box will continue to absorb dust. If the dust removal device works for a long time, the filtering function of the filter plate will decrease with the increase of dust. To clean the filter plate, the dust removal device needs to be shut down and the filter plate needs to be removed from the dust collection box before cleaning. The cleaning process is inconvenient and will affect the working efficiency of the dust removal device, making dust removal inconvenient. Summary of the invention

[0005] In order to improve the convenience of dust removal during the mineral processing process, the present application provides a dust removal device for a mining screening machine.

[0006] The present application provides a dust removal device for a mining screening machine, which adopts the following technical solution: A dust removal device for a mining screening machine comprises a collection box, which is hollow and has a dust suction pipe for connecting to the screening machine on one side of the collection box, an air fan is installed on the side of the collection box away from the dust suction pipe, a filter plate is arranged in the collection box, the filter plate is located between the air fan and the dust suction pipe, a plurality of filter plates are arranged, a support plate is fixedly connected to the collection box in the horizontal direction, the support plate is arranged vertically and divides the collection box into two independent spaces, a plurality of through openings corresponding to the filter plates are opened in the horizontal direction on the support plate, the filter plate is located in the through opening and connected to the support plate, a cleaning plate is arranged in the collection box, the cleaning plate is located on the side of the support plate close to the air fan, and It is slidably connected with the support plate along the arrangement direction of the filter plates, and the collecting box is provided with a driving part for driving the cleaning plate to move. A plurality of exhaust holes are provided on the side of the cleaning plate close to the support plate, and an air supply part is fixedly provided on the outside of the collecting box. An air supply pipe is connected between the air supply part and the cleaning plate, and the air supply part conveys high-speed airflow to all the exhaust holes through the air supply pipe. A ash box is provided at the lower end of the collecting box, and an ash discharge port is vertically opened in the collecting box, which is opposite to the ash box, and the ash discharge port is located on the side of the supporting plate close to the dust suction pipe. A guide plate is provided in the collecting box, and the guide plate is parallel to the cleaning plate and moves synchronously with the cleaning plate. An avoidance groove is vertically opened on the side of the guide plate close to the support plate.

[0007] By adopting the above technical solution, when the air fan is working, the airflow mixed with dust in the mining screening machine is sucked through the dust suction pipe. After the airflow enters the collection box along the suction pipe, it passes through the opening on the support plate and is discharged from the air fan. After the airflow passes through the filter plate, the filter plate filters the airflow and traps the dust on the side of the support plate close to the dust suction pipe. In the initial state, the cleaning plate and the guide plate are both located on one side of the support plate. When the filter plate needs to be cleaned, the cleaning plate is driven to move by the driving member. When the cleaning plate covers any opening, the guide plate is located on the side of the corresponding opening away from the cleaning plate. At this time, the air supply member conveys high-speed airflow to all exhaust holes through the air supply pipe. The airflow impacts the filter plate, and then the dust attached to the filter plate is shaken off. At this time, the guide plate prevents the impacted dust from spreading in the collection box, and guides the dust to fall into the ash box along the ash discharge port through the avoidance groove, thereby completing the cleaning of a group of filter plates. Repeat the above operation, so that the cleaning plate cleans all filter plates in turn. There is no need to manually clean the filter plate, and there is no need to stop the machine during the cleaning process, which is conducive to improving the convenience of dust removal in the mineral processing process.

[0008] Optionally, a plurality of baffles are provided on one side of the collection box close to the ash storage box, the baffles are located directly below the ash discharge port and correspond one-to-one to the filter plates, all the baffles are arranged along the moving direction of the cleaning plate, and two adjacent baffles are in conflict with each other, an elastic member is provided between the baffle and the collection box, and the elastic member applies a thrust directed to the dust suction pipe to the baffle, the support plate is located at the upper end of all baffles and contacts the upper end surface of the baffle, a guide block is fixedly provided on the upper end of the baffle, and a push block corresponding to the guide block is fixedly provided on the lower end of the cleaning plate, and the push block is driven to contact and separate with the guide block when the cleaning plate moves, and the guide block is driven close to the air fan when the push block contacts the guide block.

[0009] By adopting the above technical solution, in the initial state, when the cleaning plate is located at the end of the support plate, the push plate does not contact any guide block. At this time, the baffle blocks the ash discharge port under the action of the elastic member 1, reducing the probability of dust in the ash storage box floating again during the airflow. When the cleaning plate moves, it drives the push blocks to approach the guide blocks one by one, and then drives the baffles to move one by one, so that the baffles avoid the guide plates.

[0010] Optionally, the lower end of the support plate is vertically slidably connected to a flat plate, the flat plate is located above all baffles, an elastic member three is provided between the support plate and the flat plate, the elastic member three is used to push the flat plate close to the baffle, and a blade portion is fixedly provided on the side of the lower end of the flat plate close to the dust collection pipe, and the blade portion contacts the upper end of the baffle.

[0011] By adopting the above technical solution, under the action of the elastic member three, the flat plate drives the blade part to fit with the baffle. When the baffle moves under the action of the push block, the blade part scrapes and cleans the upper end surface of the baffle, thereby reducing the probability of dust adhering to the upper end of the baffle.

[0012] Optionally, the guide plate is provided with sealing plates on both sides along the width direction, and the two sealing plates are slidably connected to the guide plate in the direction approaching or moving away from the support plate. When the guide plate is directly opposite to any filter plate, the filter plate is located between the two sealing plates, and an elastic member 2 is provided between the sealing plate and the guide plate. The elastic member 2 applies a thrust to the sealing plate approaching the support plate. A scraper is fixedly connected to the side of the two sealing plates away from each other. When the elastic member 2 is in a natural state, the scraper fits the support plate.

[0013] By adopting the above technical solution, the second elastic member drives the sealing plate to fit with the support plate, which is beneficial to improve the sealing effect between the guide plate and the support plate. When the guide plate moves, the sealing plate cleans the side of the support plate close to the dust collection pipe through the scraper, which is beneficial to reduce the probability of dust adhering to the support plate.

[0014] Optionally, a cleaning ring is provided in the collecting box, and the cleaning ring is located on a side of the support plate close to the dust suction pipe. The outer edge of the cleaning ring is in contact with the inner wall of the collecting box, and the cleaning ring is slidably connected to the collecting box along the direction of the dust suction pipe pointing to the air fan. The collecting box is provided with a pushing member for driving the cleaning ring to move. A discharge outlet connected to the dust storage box is vertically opened on one side of the collecting box close to the dust suction pipe, and the width of the discharge outlet is no greater than the width of the cleaning ring.

[0015] By adopting the above technical solution, in the initial state, the cleaning ring is located at the discharge port and blocks the discharge port. When the inner wall of the collection box needs to be cleaned, the cleaning ring is driven by the pushing member to move along the direction of the dust suction pipe to the support plate. When the cleaning ring moves, the dust attached to the inner wall of the collection box is cleaned and the dust is pushed to move toward the ash discharge port. During the movement of the cleaning ring, if dust falls on the side of the cleaning ring away from the support ring, the dust is driven to move toward the discharge port when the cleaning ring is reset, so that this part of the dust passes through the discharge port and falls into the ash storage box.

[0016] Optionally, the collection box is vertically opened with a stay port connected to the ash discharge port, the stay port is located at one end of the ash discharge port along the length direction, and the length of the stay port is not less than the width of the guide plate, and a supporting plate adapted to the stay port is fixedly provided on one side of the guide plate away from the support plate.

[0017] By adopting the above technical solution, when the cleaning ring pushes the dust to move toward the ash discharge port, part of the dust will fall directly into the ash discharge port. At this time, the dust cleaned by the part of the cleaning ring facing the guide plate will fall into the retention port. The support plate supports this part of the dust and blocks the ash discharge port. When the guide plate moves, the side wall of the retention port cleans the dust on the upper end surface of the support plate.

[0018] Optionally, the pushing member includes a motor 1, a screw, a moving block and a baffle plate, the moving block is fixedly connected to the upper end of the cleaning ring, the collecting box is provided with a through groove adapted to the moving block, the moving block is located in the through groove and is slidingly connected to the collecting box along the length direction of the through groove, the screw is arranged along the length direction of the through groove and is rotatably connected to the collecting box, and the screw passes through the moving block and is threadedly connected to the moving block, the motor 1 is fixedly connected to the collecting box for driving the screw to rotate, the baffle plate is fixedly connected to the lower end of the moving block, and the baffle plate extends toward the support plate.

[0019] By adopting the above technical solution, when the motor drives the lead screw to rotate, the lead screw pushes the moving block to move along the through slot, and when the moving block moves, it drives the shielding plate to pass through the through slot. In the initial state, the cleaning ring is located at the discharge port position, and the shielding plate shields the through slot, reducing the probability of dust falling into the through slot.

[0020] Optionally, the guide plate is provided with an impact plate, which is located in the avoidance groove and does not contact the inner wall of the avoidance groove. A connecting piece is provided between the impact plate and the guide plate, and the connecting piece is located at the upper end of the impact plate. The guide plate suspends the impact plate through the connecting piece so that the impact plate swings vertically and the largest end face of the impact plate faces the support plate.

[0021] By adopting the above technical solution, when the cleaning plate transports airflow to the filter plate, the airflow drives the impact plate to shake. Under the action of the connecting piece, the impact plate impacts the guide plate, causing the guide plate to vibrate, which is conducive to making the dust on the side of the guide plate away from the support plate fall off.

[0022] Optionally, the collecting box is provided with a plurality of spray pipes, which are located at the upper end of the ash box and arranged along the length direction of the ash box, a plurality of nozzles are fixedly provided at the lower end of the spray pipes, a water tank is installed outside the collecting box, all the spray pipes are connected to the water tank, the water tank is provided with a water pump for conveying water to the spray pipes, and the ash box is slidably connected to the collecting box in the horizontal direction.

[0023] By adopting the above technical solution, when dust enters the ash box, the water pump in the water tank is started, so that water enters the nozzle along the spray pipe, and the nozzle sprays water mist to reduce dust in the ash box. When the ash box needs to be cleaned, the ash box can be moved out from under the collection box.

[0024] Optionally, a plurality of movable holes are opened laterally on one side of the cleaning plate close to the support plate, and impact rods are provided in all the movable holes, which are slidably connected to the cleaning plate along the axial direction of the movable hole. A frame is fixedly provided on the outer side of the filter plate along the circumferential direction, and a reset member is provided between the impact rod and the cleaning plate. When relative displacement occurs between the impact rod and the cleaning plate, the reset member is used to drive the impact rod to reset. The cleaning plate is also provided with an air duct independent of the exhaust hole, and one end of all the movable holes away from the support plate is connected to the air duct. The collecting box is provided with a control member, which is used to control the connection and disconnection of the air supply pipe and the air duct, or to control the connection and disconnection of the air supply pipe and the exhaust hole.

[0025] By adopting the above technical solution, when the air flow hits the filter plate, the air supply pipe is connected to all the exhaust holes through the control component. On the other hand, when the air supply pipe is connected to the movable hole, the air flow provided by the air supply component enters the movable hole and pushes the impact rod to move. When the impact rod collides with the frame, it drives the frame to vibrate, thereby causing the dust on the filter plate to fall off, which is beneficial to reduce the probability of dust generated by the filter plate during the cleaning process. The filter plate is cleaned in different ways, which improves the cleaning convenience of the filter plate.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. When the air fan is working, the airflow mixed with dust in the mining screening machine is sucked through the dust suction pipe. The airflow enters the collection box along the suction pipe and passes through the opening on the support plate and is discharged from the air fan. After the airflow passes through the filter plate, the filter plate filters the airflow and traps the dust on the side of the support plate close to the dust suction pipe. In the initial state, the cleaning plate and the guide plate are both located on one side of the support plate. When the filter plate needs to be cleaned, the cleaning plate is driven to move by the driving member. When the cleaning plate covers any opening, the guide plate is located on the side of the corresponding opening away from the cleaning plate. At this time, the air supply member conveys high-speed airflow to all exhaust holes through the air supply pipe. The airflow impacts the filter plate, and then shakes off the dust attached to the filter plate. At this time, the guide plate prevents the impacted dust from spreading in the collection box, and guides the dust along the ash discharge port into the ash storage box through the avoidance groove, thereby completing the cleaning of a group of filter plates. Repeat the above operation, so that the cleaning plate cleans all filter plates in turn. There is no need to manually clean the filter plate, and there is no need to stop the machine during the cleaning process, which is conducive to improving the convenience of dust removal in the mineral processing process; 2. When the air flow impacts the filter plate, the air supply pipe is connected to all the exhaust holes through the control part. On the other hand, when the air supply pipe is connected to the movable hole, the air flow provided by the air supply part enters the movable hole and pushes the impact rod to move. When the impact rod collides with the frame, it drives the frame to vibrate, thereby causing the dust on the filter plate to fall off, which is beneficial to reduce the probability of dust generation during the cleaning process of the filter. The filter plate can be cleaned in different ways, which improves the cleaning convenience of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0028] Figure 2 This is a schematic diagram intended to highlight the internal structure of the collection box and ash box.

[0029] Figure 3 It is a schematic diagram intended to highlight the support plate structure.

[0030] Figure 4 yes Figure 3 Schematic diagram of the enlarged portion B.

[0031] Figure 5 This is a schematic diagram intended to highlight the external structure of the cleaning board.

[0032] Figure 6 It is a schematic diagram intended to highlight the connection structure between the cleaning plate and the ventilation disk.

[0033] Figure 7 This is a schematic diagram intended to highlight the structure of the guide plate.

[0034] Figure 8 yes Figure 3 Enlarged schematic diagram of part C.

[0035] Fig. 9 It is a schematic diagram intended to highlight the connection structure between the water tank and the sprinkler pipe.

[0036] Fig.10 It is a schematic diagram intended to highlight the connection structure between the cleaning plate and the impact rod.

[0037] Fig.11 yes Figure 2 Enlarged schematic diagram of part A.

[0038] Description of reference numerals: 1. collecting box; 11. dust suction pipe; 12. air fan; 13. bottom plate; 131. discharge port; 14. dust discharge port; 141. stay port; 15. baffle; 151. elastic member 1; 152. guide block; 161. motor 1; 162. lead screw; 163. moving block; 164. shielding plate; 17. spray pipe; 171. spray head; 18. water tank; 181. water pump; 19. translation plate; 191. thrust spring; 2. filter plate; 21. frame; 3. support plate; 31. through port; 32. flat plate; 321. elastic member 3; 322. blade portion; 4. cleaning plate; 41. exhaust hole; 411. first cavity; 412, vent hole; 42, push block; 43, moving hole; 441, impact rod; 442, reset member; 45, second cavity; 46, air duct; 471, turntable; 472, multi-faceted rod; 48, ventilation plate; 481, air inlet; 482, multi-faceted hole; 5, driving member; 6, air supply member; 61, air supply pipe; 7, dust box; 71, avoidance hole; 72, buffer hole; 73, support shell; 74, buffer soft bag; 8, guide plate; 81, avoidance groove; 82, support plate; 83, impact plate; 84, connecting member; 841, rotating shaft; 842, swing rod; 85, sealing plate; 851, elastic member 2; 852, scraper; 9, cleaning ring. DETAILED DESCRIPTION

[0039] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0040] The embodiment of the present application discloses a dust removal device for a mining screening machine.

[0041] Example: Reference Figure 1 and Figure 2 A dust removal device for a mining screening machine includes a collection box 1, a dust box 7 is provided at the lower end of the collection box 1, the dust box 7 is slidably connected to the collection box 1 in the horizontal direction, and the collection box 1 is provided with a receiving portion adapted to the dust box 7. In the initial state, the dust box 7 is located in the receiving portion and is in a working state. A bottom plate 13 is fixedly connected in the horizontal direction inside the collection box 1, the bottom plate 13 is located at the upper end of the dust box 7, and isolates the dust box 7 from the collection box 1.

[0042] Reference Figure 1 and Figure 2 The collecting box 1 is hollow, and one end of the collecting box 1 is connected to a dust suction pipe 11, and the other end of the collecting box 1 is installed with an air fan 12. When the air fan 12 is working, the gas in the collecting box 1 is discharged along the dust suction pipe 11 pointing to the air fan 12. The end of the dust suction pipe 11 away from the collecting box 1 is used to be connected to the working area of ​​the mining screening machine. When the gas in the collecting box 1 is discharged, the dust and gas generated in the working area are absorbed by the dust suction pipe 11, so that the dust generated in the screening process and the air flow enter the collecting box 1 at the same time.

[0043] Reference Figure 1 and Figure 2 A support plate 3 is fixedly provided in the collection box 1. The support plate 3 is located between the dust suction pipe 11 and the air fan 12, and separates the dust suction pipe 11 from the air fan 12. The support plate 3 has multiple openings 31 opened in the transverse direction. Filter plates 2 are arranged in all the openings 31. The filter plates 2 are fixedly provided with a frame 21 in the circumferential direction. The support plate 3 is connected to the filter plates 2 through the frame 21, thereby supporting and positioning the filter plates 2. After the gas enters the collection box 1 along the dust suction pipe 11, it passes through the filter plates 2 in the openings 31 under the action of the air fan 12 and is discharged by the air fan 12. During the movement of the airflow, the filter plate 2 filters the airflow, so that the dust in the airflow adheres to the side of the filter plate 2 close to the dust suction pipe 11.

[0044] Reference Figure 1 and Figure 2 The bottom plate 13 is provided with an ash discharge port 14 for connecting the ash storage box 7 and the collection box 1. The ash discharge port 14 is located near the support plate 3 and below the filter plate 2. A plurality of baffles 15 are provided at the lower end of the bottom plate 13. The plurality of baffles 15 are arranged along the arrangement direction of the filter plates 2, and two adjacent baffles 15 fit each other. The baffles 15 are slidably connected to the bottom plate 13 along the length direction, and an elastic member 151 is provided between the bottom plate 13 and the baffle 15. The elastic member 151 is a spring. One end of the spring is fixedly connected to the bottom plate 13, and the other end of the spring is fixedly connected to the baffle 15. The elastic member 151 applies a thrust to the baffle 15 close to the dust suction pipe 11.

[0045] Reference Figure 2 and Figure 3 The lower end of the bottom plate 13 is fixedly connected with a positioning block corresponding to the baffle 15. The baffle 15 contacts the positioning block under the action of the elastic member 151. At this time, all the baffles 15 cooperate to block the ash discharge port 14. A cleaning plate 4 and a guide plate 8 are also provided in the collection box 1. The cleaning plate 4 is located on the side of the support plate 3 close to the air fan 12. The guide plate 8 is parallel to the cleaning plate 4 and is located on the side of the support plate 3 close to the dust suction pipe 11. The projections of the cleaning plate 4 and the guide plate 8 on the support plate 3 overlap, and the end surface area of ​​the cleaning plate 4 and the guide plate 8 close to each other is larger than the diameter of the through port 31.

[0046] Reference Figure 2 and Figure 3 The cleaning plate 4 and the guide plate 8 are both slidably connected to the support plate 3 along the arrangement direction of the filter plate 2. The collection box 1 is provided with a driving member 5 for driving the cleaning plate 4 and the guide plate 8 to move. The driving member 5 includes a second motor, a first screw, a second screw and a sprocket set. The first screw and the second screw are both arranged along the moving direction of the cleaning plate 4, and the first screw and the second screw are rotatably connected to the collection box 1 around their own axes.

[0047] Reference Figure 2 and Figure 3 , screw rod 1 passes through cleaning plate 4 and is threadedly connected with cleaning plate 4. Under the limiting action of support plate 3 and collection box 1, screw rod 1 drives cleaning plate 4 to move when it rotates; screw rod 2 passes through guide plate 8 and is threadedly connected with guide plate 8. When screw rod 2 rotates, it drives guide plate 8 to move. Motor 2 is installed outside collection box 1. Sprocket set connects screw rod 1 and screw rod 2 with output shaft of motor 2, so that when motor 2 works, it drives screw rod 1 and screw rod 2 to rotate at the same time, thereby making cleaning plate 4 and guide plate 8 move synchronously.

[0048] Reference Figure 2 and Figure 3 A stop portion is provided at one end of the support plate 3 along the length direction, and the width of the stop portion is not less than the width of the cleaning plate 4. In the initial state, the cleaning plate 4 and the guide plate 8 are both located at the stop portion, and there is no need to block the through opening 31.

[0049] Reference Figure 5 and Figure 6 A plurality of evenly arranged exhaust holes 41 are provided on one side of the cleaning plate 4 close to the supporting plate 3, and a first cavity 411 is provided on the cleaning plate 4 to communicate with all the exhaust holes 41. A vent hole 412 is provided on one side of the cleaning plate 4 in a lateral direction to communicate with the first cavity 411, and a ventilation disk 48 is rotatably connected to the side of the cleaning plate 4 in which the vent hole 412 is provided, and the ventilation disk 48 is provided with an air inlet hole 481 in a radial direction, and when the ventilation disk 48 rotates, the air inlet hole 481 is connected or disconnected with the air inlet hole 412.

[0050] Reference Figure 1 and Figure 6 The end of the ventilation disk 48 away from the cleaning plate 4 is connected with an air supply pipe 61, and the air supply pipe 61 is connected with the air inlet 481. The outside of the collecting box 1 is equipped with an air supply member 6, which includes a gas cylinder and a solenoid valve. The gas cylinder is connected with the ventilation disk 48 through the air supply pipe 61. The solenoid valve is installed on the side of the gas supply pipe 61 close to the gas cylinder, and is used to control the connection and disconnection between the gas cylinder and the air supply pipe 61. The air supply pipe 61 is a hose, and moves synchronously with the movement of the cleaning plate 4.

[0051] Reference Figure 3 and Figure 7The side of the guide plate 8 close to the support plate 3 is provided with an avoidance groove 81, the lower end of which is connected to the outside. When the cleaning plate 4 is directly opposite to the through opening 31, the avoidance groove 81 is connected to the end of the through opening 31 away from the cleaning plate 4. A push block 42 is fixedly connected to the lower end of the cleaning plate 4, and a guide block 152 corresponding to the push block 42 is fixedly connected to the upper end of the baffle 15. When the cleaning plate 4 is located at the stop portion, the push block 42 does not contact any of the baffles 15.

[0052] Reference Figure 5 and Figure 7 When the filter plate 2 needs to be cleaned, the cleaning plate 4 is driven by the driving member 5 to move toward any filter plate 2, so that the guide plate 8 and the cleaning plate 4 are respectively located on both sides of the corresponding filter plate 2, and the push block 42 and the guide block 152 are both inclined. However, when the cleaning plate 4 moves, the push block 42 conflicts with the guide block 152 and pushes the guide block 152 toward the air fan 12. When the guide block 152 moves, it drives the baffle 15 to move, so that the baffle 15 avoids the guide plate 8, and then the guide plate 8 connects the corresponding opening 31 with the cavity where the ash box 7 is located through the avoidance groove 81.

[0053] Reference Figure 5 and Figure 8 The lower end of the support plate 3 is vertically slidably connected to a flat plate 32. An elastic member 321 is provided between the flat plate 32 and the support plate 3. The elastic member 321 is a spring. One end of the spring is fixedly connected to the flat plate 32, and the other end of the spring is fixedly connected to the support plate 3. The elastic member 321 applies a thrust to the flat plate 32 to approach the baffle 15, so that the flat plate 32 fits the baffle 15. A blade portion 322 is fixedly provided on the side of the flat plate 32 close to the dust suction pipe 11. When the baffle 15 moves away from the dust suction pipe 11 under the action of the push block 42, the blade portion 322 cleans the upper end of the baffle 15 during the relative movement between the baffle 15 and the flat plate 32.

[0054] Reference Figure 1 and Figure 6 When the gas cylinder is connected to the gas supply pipe 61, a high-speed airflow is delivered to the air inlet 481 through the air supply pipe 61, and the high-speed airflow flows along the air inlet 481 and the air vent 412 in sequence, and enters the first cavity 411, and finally sprays out from the exhaust hole 41 to the filter plate 2, thereby impacting the dust on the filter plate 2, so that the dust on the filter plate 2 is discharged in the avoidance groove 81 (reference Figure 7 ) into the cavity where the dust box 7 is located. The guide plate 8 guides and limits the dust, thereby reducing the probability of dust being raised again in the collection box 1.

[0055] Reference Figure 6, sealing plates 85 are provided on both sides of the guide plate 8 along the width direction, and the sealing plates 85 are slidably connected with the guide plate 8 in the direction of approaching or moving away from the support plate 3. When the guide plate 8 moves, the two sealing plates 85 are driven to move, and when the avoidance groove 81 is connected with any through port 31, the filter plate 2 in the through port 31 is located between the two sealing plates 85. An elastic member 851 is provided between the sealing plate 85 and the guide plate 8. The elastic member 851 is a spring, one end of which is fixedly connected to the sealing plate 85, and the other end of which is fixedly connected to the guide plate 8. In the natural state, the elastic member 851 pushes the sealing plate 85 to fit with the support plate 3, thereby improving the sealing effect between the guide plate 8 and the support plate 3 during the cleaning process.

[0056] Reference Figure 6 A scraper 852 is fixedly provided along the length direction on the side of the two sealing plates 85 that are away from each other. When the sealing plate 85 moves, the scraper 852 is driven to move, and the scraper 852 is in contact with the support plate 3. When the guide plate 8 moves, the sealing plate 85 uses the scraper 852 to scrape and clean the end surface of the support plate 3 close to the dust suction pipe 11, thereby facilitating the cleaning of dust attached to the support plate 3.

[0057] Reference Figure 6 , an impact plate 83 is arranged in the avoidance groove 81, and the guide plate 8 is provided with a connecting piece 84 for hanging the impact plate 83, and the connecting piece 84 includes a rotating shaft 841 and a swing rod 842, the rotating shaft 841 is located in the avoidance groove 81 and is fixedly connected to the guide plate 8, and the rotating shaft 841 passes through the swing rod 842 and is rotatably connected to the swing rod 842. The impact plate 83 is fixedly connected to the end of the swing rod 842 away from the rotating shaft 841, and in a natural state, the largest end face of the impact plate 83 is opposite to the support plate 3. When the cleaning plate 4 cleans the filter plate 2 through the exhaust hole 41, the airflow passes through the filter plate 2 and then impacts the impact plate 83, so that the impact plate 83 collides with the guide plate 8, thereby driving the guide plate 8 to vibrate, so as to facilitate the shaking off of the dust on the outside of the guide plate 8.

[0058] Reference Figure 2 and Fig. 9 A plurality of spray pipes 17 are arranged at the upper end of the ash box 7, and all the spray pipes 17 are fixedly connected to the collection box 1. A water tank 18 is installed outside the collection box 1, and the water tank 18 is used to store clean water. All the spray pipes 17 are connected to the water tank 18, and the water tank 18 is installed with a water pump 181. After the dust is discharged into the ash box 7, the water pump 181 inputs the water in the water tank 18 into all the spray pipes 17. A plurality of nozzles 171 are installed along the length direction at the lower end of the spray pipe 17. High-speed flowing water enters the nozzle 171 along the spray pipe 17 and is sprayed out by the nozzle 171, thereby performing dust reduction treatment on the dust in the ash box 7, and further reducing the probability of dust being raised again in the ash box 7.

[0059] Reference Figure 2 and Fig. 9 A plurality of avoidance holes 71 are provided on the upper end of the ash box 7, and the spray pipe 17 passes through the avoidance holes 71 and fits against the inner wall of the avoidance holes 71. When cleaning the ash box 7, the ash box 7 is moved out from under the collecting box 1, and the upper end of the spray pipe 17 is cleaned through the side of the avoidance holes 71 during the movement of the ash box 7, which is helpful to reduce the probability of dust accumulation on the spray pipe 17.

[0060] Reference Figure 1 and Fig. 9 A buffer hole 72 communicating with the outside is provided on one side of the ash box 7. A buffer soft bag 74 corresponding to the buffer hole 72 is installed on the outside of the ash box 7. A support shell 73 is fixed on the outside of the ash box 7. The support shell 73 is sleeved on the outside of the buffer soft bag 74 and supports the buffer soft bag 74. The buffer soft bag 74 is made of breathable fabric. When dust and air flow enter the ash box 7 along the avoidance groove 81, the original air in the ash box 7 is discharged from the buffer hole 72 and enters the buffer soft bag 74. The buffer soft bag 74 filters the air and buffers the gas in the ash box 7.

[0061] Reference Figure 6 and Fig.10 A plurality of moving holes 43 are also formed on one side of the cleaning plate 4 close to the supporting plate 3. A striking rod 441 is provided in all the moving holes 43. The striking rod 441 is slidably connected to the cleaning plate 4 along the axis direction of the moving hole 43. A reset member 442 is provided between the striking rod 441 and the cleaning plate 4. The reset member 442 is a spring. One end of the spring is fixedly connected to the striking rod 441, and the other end of the spring is fixedly connected to the cleaning plate 4. When the reset member 442 is in a natural state, all the striking rods 441 are located in the corresponding moving holes 43.

[0062] Reference Figure 6 and Fig.10 The cleaning plate 4 is provided with a second cavity 45 connected with all the movable holes 43. When the impact rod 441 is located in the movable hole 43, the second cavity 45 is not connected with the first cavity 411. The cleaning plate 4 is provided with an air passage 46 connected with the second cavity 45. When the ventilation disk 48 rotates, the air inlet hole 481 switches between the air passage 46 and the air hole 412. The collecting box 1 is provided with a control part for rotating the ventilation disk 48. The control part includes a turntable 471 and a multi-faceted rod 472. The turntable 471 passes through the collecting box 1 and is rotatably connected with the collecting box 1. The multi-faceted rod 472 is located on the side of the turntable 471 close to the cleaning plate 4 and is coaxially fixed with the turntable 471.

[0063] Reference Figure 2 and Figure 6, a multi-faceted hole 482 adapted to the multi-faceted rod 472 is provided on one side of the ventilation disc 48 close to the rotating disc 471. When the cleaning plate 4 is located at the stop position, the ventilation disc 48 is directly opposite to the rotating disc 471, and the multi-faceted rod 472 is inserted into the multi-faceted hole 482. In another working state of the cleaning plate 4, the operator rotates the rotating disc 471 from the outside, so that the rotating disc 471 drives the ventilation disc 48 to rotate through the multi-faceted rod 472, so that the ventilation disc 48 drives the air inlet 481 to separate from the air hole 412, and the air inlet 481 is connected to the air passage 46.

[0064] Reference Figure 3 and Figure 6 When the cleaning plate 4 is facing any filter plate 2, the airflow in the air supply member 6 enters the air inlet 481 along the air supply pipe 61, and enters the moving hole 43 along the air duct 46 and the second cavity 45 in turn. At this time, the airflow pushes the impact rod 441 in the moving hole 43 to move. The distribution position of the impact rod 441 corresponds to the frame 21 of the filter plate 2. After the impact rod 441 collides with the frame 21, the frame 21 vibrates, thereby vibrating the filter plate 2 and cleaning the filter plate 2. Cleaning the filter plate 2 by vibrating the filter plate 2 is beneficial to reducing the probability of secondary dust lifting.

[0065] Reference Figure 2 A cleaning ring 9 is provided in the collection box 1. The cleaning ring 9 is located on the side of the support plate 3 close to the dust suction pipe 11, and the outer edge of the cleaning ring 9 is in contact with the inner wall of the collection box 1. The collection box 1 is provided with a pusher for driving the cleaning ring 9 to move. The pusher includes a motor 161, a lead screw 162, a moving block 163 and a shielding plate 164. The moving block 163 is located at the upper end of the cleaning ring 9 and is fixedly connected to the cleaning ring 9. A through groove is provided at the upper end of the collection box 1 along the length direction. The moving block 163 is located in the through groove and is slidably connected to the inner wall of the through groove along the length direction of the through groove.

[0066] Reference Figure 2 The lead screw 162 is located in the through slot and is connected to the collection box 1 for rotation around its own axis. The motor 161 is installed outside the collection box 1 for driving the lead screw 162 to rotate. Under the limiting effect of the through slot, the lead screw 162 drives the moving block 163 to move when it rotates. In the initial state, the cleaning ring 9 is located at one end of the collection box 1 close to the dust suction pipe 11. When the moving block 163 moves, it drives the cleaning ring 9 to move closer to the support plate 3.

[0067] Reference Figure 2When the cleaning ring 9 moves, it cleans the inner wall of the collection box 1. The shielding plate 164 is located in the through groove and is fixedly connected to the side of the moving block 163 close to the support plate 3. When the moving block 163 moves, it drives the shielding plate 164 to move. In the initial state, the cleaning ring 9 is close to the dust suction pipe 11. At this time, the shielding plate 164 shields the through groove, thereby reducing the probability of dust entering the through groove during the dust suction process.

[0068] Reference Figure 2 and Figure 8 When the cleaning ring 9 moves toward the support plate 3, the dust is driven to move toward the ash discharge port 14. The bottom plate 13 opens a stop port 141 vertically connected to the ash discharge port 14. When the guide plate 8 is located at the stop portion, it faces the stop port 141. When the cleaning ring 9 moves, the dust cleaned by the portion facing the guide plate 8 moves toward the stop port 141. The guide plate 8 is fixedly connected to a supporting plate 82 corresponding to the stop port 141. When the guide plate 8 is located at the stop port 141, the supporting plate 82 blocks the stop port 141. The dust falling into the stop port 141 stays above the supporting plate 82. The remaining dust falls into the ash discharge port 14 under the action of the cleaning ring 9, thereby facilitating the cleaning of the inner wall of the collection box 1.

[0069] Reference Figure 2 and Figure 8 The bottom plate 13 is provided with an outlet 131 on one side close to the dust suction pipe 11. In the initial state, the cleaning ring 9 is located at the outlet 131, thereby blocking the outlet 131. The width of the outlet 131 is smaller than the width of the cleaning ring 9. When the cleaning ring 9 is reset, it pushes the dust away from the side of the support plate 3 to move toward the outlet 131.

[0070] Reference Figure 2 and Fig.11 , a translation plate 19 is provided at the lower end of the bottom plate 13, and the translation plate 19 is slidably connected to the bottom plate 13 in the direction of approaching or moving away from the support plate 3. A thrust spring 191 is provided between the translation plate 19 and the bottom plate 13, and the thrust spring 191 applies a thrust to the translation plate 19 to move toward the support plate 3. A slope is provided on one side of the support plate 82 in the transverse direction, and the translation plate 19 is provided with a bevel corresponding to the slope. When the support plate 82 approaches the resting position, the slope contacts the bevel, and then the support plate 82 pushes the translation plate 19 away from the support plate 3, so that the translation plate 19 avoids the support plate 82.

[0071] Reference Figure 2 and Fig.11When the guide plate 8 moves away from the stop opening 141, the side of the stop opening 141 cleans the dust on the support plate 82. When the support plate 82 completely leaves the stop opening 141, the translation plate 19 blocks the stop opening 141 under the action of the thrust spring 191, thereby reducing the probability of dust in the dust box 7 entering the collection box 1 from the stop opening 141 during the cleaning of the filter plate 2.

[0072] The working principle of the dust removal device of a mining screening machine in the embodiment of the present application is as follows: when the air fan 12 is working, the dust generated by the ore screening machine is sucked through the dust suction pipe 11. After the dust enters the collection box 1, it passes through the opening 31 on the support plate 3. At this time, the filter plate 2 filters the airflow passing through the filter plate 2, and the dust is trapped on the side of the filter plate 2 close to the dust suction pipe 11. When cleaning the filter plate 2, the cleaning plate 4 is driven by the driving member 5 to move out from the stop portion, so that the cleaning plate 4 is directly opposite to any opening 31. At this time, the air source member conveys a high-speed airflow into the first cavity 411 of the cleaning plate 4 through the air supply pipe 61. After the airflow passes through the exhaust hole 41, it impacts the filter plate 2. Under the action of the guide plate 8, the dust attached to the filter plate 2 is made to fall into the ash storage box 7 along the avoidance groove 81 through the ash discharge port 14. Repeat the above operation to move the cleaning plate 4 to the next opening 31, and then clean all the filter plates 2 in turn. When cleaning the filter plate 2, there is no need to remove the filter plate 2, which is conducive to improving the convenience of dust removal in the mineral processing process.

[0073] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A dust removal device for a mining screening machine, comprising a collecting box (1), the collecting box (1) being hollow, and a dust suction pipe (11) for connecting to the screening machine is provided on one side of the collecting box (1), an air fan (12) is installed on the side of the collecting box (1) away from the dust suction pipe (11), a filter plate (2) is provided in the collecting box (1), and the filter plate (2) is located between the air fan (12) and the dust suction pipe (11), characterized in that: The filter plates (2) are provided with a plurality of them. A support plate (3) is fixedly connected in the horizontal direction in the collection box (1). The support plate (3) is arranged vertically and divides the collection box (1) into two independent spaces. The support plate (3) is opened in the horizontal direction with a plurality of openings (31) corresponding to the filter plates (2) one by one. The filter plates (2) are located in the openings (31) and are connected to the support plate (3). A cleaning plate (4) is provided in the collection box (1). The cleaning plate (4) is located on a side of the support plate (3) close to the air fan (12) and is slidably connected to the support plate (3) along the arrangement direction of the filter plates (2). The collection box (1) is provided with a driving member (5) for driving the cleaning plate (4) to move. The cleaning plate (4) is provided with a plurality of openings (31) on a side close to the support plate (3). The collecting box (1) is provided with a dry exhaust hole (41), an air supply member (6) is fixedly arranged on the outside of the collecting box (1), an air supply pipe (61) is connected between the air supply member (6) and the cleaning plate (4), and the air supply member (6) conveys high-speed airflow to all the exhaust holes (41) through the air supply pipe (61), a dust box (7) is arranged at the lower end of the collecting box (1), and the collecting box (1) is provided with a dust discharge port (14) vertically opposite to the dust box (7), and the dust discharge port (14) is located on a side of the supporting plate (3) close to the dust suction pipe (11), and a guide plate (8) is arranged in parallel with the cleaning plate (4) and moves synchronously with the cleaning plate (4), and a avoidance groove (81) is vertically opened on a side of the guide plate (8) close to the supporting plate (3).

2. A dust removal device for a mining screening machine according to claim 1, characterized in that: A plurality of baffles (15) are provided on one side of the collection box (1) close to the dust storage box (7). The baffles (15) are located directly below the dust discharge port (14) and correspond one to one with the filter plates (2). All the baffles (15) are arranged along the moving direction of the cleaning plate (4), and two adjacent baffles (15) are in contact with each other. An elastic member (151) is provided between the baffle (15) and the collection box (1). The elastic member (151) applies a pushing force to the baffle (15) toward the dust collection pipe (11). The support plate (3) is located at the upper end of all the baffles (15) and contacts the upper end surface of the baffles (15). A guide block (152) is fixedly provided at the upper end of the baffle (15). A push block (42) corresponding to the guide block (152) is fixedly provided at the lower end of the cleaning plate (4). When the cleaning plate (4) moves, the push block (42) is driven to contact and separate from the guide block (152). When the push block (42) contacts the guide block (152), the guide block (152) is driven to approach the air fan (12).

3. A dust removal device for a mining screening machine according to claim 2, characterized in that: The lower end of the support plate (3) is vertically slidably connected to a flat plate (32), the flat plate (32) being located above all the baffles (15), a third elastic member (321) being provided between the support plate (3) and the flat plate (32), the third elastic member (321) being used to push the flat plate (32) close to the baffle (15), a blade portion (322) being fixedly provided on a side of the lower end of the flat plate (32) close to the dust suction pipe (11), the blade portion (322) being in contact with an upper end of the baffle (15).

4. The dust removal device for a mining screening machine according to claim 1, characterized in that: The guide plate (8) is provided with sealing plates (85) on both sides along the width direction. The two sealing plates (85) are slidably connected to the guide plate (8) in a direction approaching or moving away from the support plate (3). When the guide plate (8) is directly opposite to any filter plate (2), the filter plate (2) is located between the two sealing plates (85). A second elastic member (851) is provided between the sealing plate (85) and the guide plate (8). The second elastic member (851) applies a thrust to the sealing plate (85) approaching the support plate (3). The two sealing plates (85) are fixedly connected with a scraper (852) on the side away from each other. When the second elastic member (851) is in a natural state, the scraper (852) is in contact with the support plate (3).

5. The dust removal device for a mining screening machine according to claim 1, characterized in that: A cleaning ring (9) is arranged in the collection box (1). The cleaning ring (9) is located on a side of the support plate (3) close to the dust suction pipe (11). The outer edge of the cleaning ring (9) is in contact with the inner wall of the collection box (1). The cleaning ring (9) is slidably connected to the collection box (1) along the direction in which the dust suction pipe (11) points to the air fan (12). The collection box (1) is provided with a pushing member for driving the cleaning ring (9) to move. A discharge port (131) connected to the dust storage box (7) is vertically opened on one side of the collection box (1) close to the dust suction pipe (11). The width of the discharge port (131) is not greater than the width of the cleaning ring (9).

6. The dust removal device for a mining screening machine according to claim 1, characterized in that: The collection box (1) is provided with a stop opening (141) in a vertical direction and connected to the ash discharge opening (14); the stop opening (141) is located at one end of the ash discharge opening (14) in a length direction, and the length of the stop opening (141) is not less than the width of the guide plate (8); a support plate (82) adapted to the stop opening (141) is fixedly provided on one side of the guide plate (8) facing away from the support plate (3).

7. The dust removal device for a mining screening machine according to claim 5, characterized in that: The pushing member comprises a motor 1 (161), a lead screw (162), a moving block (163) and a shielding plate (164); the moving block (163) is fixedly connected to the upper end of the cleaning ring (9); the collection box (1) is provided with a through slot adapted to the moving block (163); the moving block (163) is located in the through slot and is slidably connected to the collection box (1) along the length direction of the through slot; the lead screw (162) is arranged along the length direction of the through slot and is rotatably connected to the collection box (1); the lead screw (162) passes through the moving block (163) and is threadedly connected to the moving block (163); the motor 1 (161) is fixedly connected to the collection box (1) for driving the lead screw (162) to rotate; the shielding plate (164) is fixedly connected to the lower end of the moving block (163), and the shielding plate (164) extends toward the support plate (3).

8. The dust removal device for a mining screening machine according to claim 1, characterized in that: The guide plate (8) is provided with a strike plate (83), the strike plate (83) is located in the avoidance groove (81) and does not contact the inner wall of the avoidance groove (81), a connecting piece (84) is provided between the strike plate (83) and the guide plate (8), the connecting piece (84) is located at the upper end of the strike plate (83), and the guide plate (8) suspends the strike plate (83) through the connecting piece (84), so that the strike plate (83) swings vertically, and the largest end surface of the strike plate (83) faces the support plate (3).

9. The dust removal device of a mining screening machine according to claim 1, characterized in that: The collection box (1) is provided with a plurality of spray pipes (17), the spray pipes (17) are located at the upper end of the ash box (7) and are arranged along the length direction of the ash box (7), a plurality of spray heads (171) are fixedly provided at the lower end of the spray pipes (17), a water tank (18) is installed outside the collection box (1), all the spray pipes (17) are connected to the water tank (18), the water tank (18) is provided with a water pump (181) for conveying water to the spray pipes (17), and the ash box (7) is slidably connected to the collection box (1) in the transverse direction.

10. The dust removal device for a mining screening machine according to claim 1, characterized in that: A plurality of movable holes (43) are opened in the transverse direction on one side of the cleaning plate (4) close to the support plate (3), and a striking rod (441) is arranged in each of the movable holes (43). The striking rod (441) is slidably connected to the cleaning plate (4) along the axis direction of the movable hole (43), and a frame (21) is fixedly arranged on the outer side of the filter plate (2) along the circumferential direction. A reset member (442) is arranged between the striking rod (441) and the cleaning plate (4), and a reset member (442) is arranged between the striking rod (441) and the cleaning plate (4). When relative displacement occurs, the reset member (442) is used to drive the impact rod (441) to reset. The cleaning plate (4) is also provided with an air passage (46) independent of the exhaust hole (41). One end of all the movable holes (43) away from the support plate (3) is connected to the air passage (46). The collection box (1) is provided with a control member, which is used to control the connection and disconnection between the air supply pipe (61) and the air passage (46), or to control the connection and disconnection between the air supply pipe (61) and the exhaust hole (41).

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