A dust removal device for a mining screening machine

Abstract

The present invention discloses a dust removal device for a mining screening machine, which relates to the field of dust removal devices for screening machines. The device comprises a collection box, a dust suction pipe is provided on one side of the collection box, an air fan is installed on the other side of the collection box, a plurality of filter plates and a support plate for supporting the filter plates are provided in the collection box, a cleaning plate is provided on the side of the support plate close to the air fan, the cleaning plate is slidably connected to the support plate along the arrangement direction of the filter plates, the collection box is provided with a driving member 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, an air supply member is fixedly provided on the outside of the collection box for conveying high-speed airflow into the exhaust holes, an ash box is provided at the lower end of the collection box, and an ash discharge port is vertically opened in the collection box that is directly opposite to the ash box, a guide plate is provided in the collection box, the guide plate is arranged parallel to the cleaning plate and moves synchronously with the cleaning plate, and an avoidance groove is vertically opened on the side of the guide plate close to the support plate. The present invention has the effect of improving the convenience of dust removal in the mineral processing process.

Description

Technical Field

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

[0002] During mineral processing, ore screening removes large-diameter waste rock and insignificant soil components, effectively enriching useful minerals. To improve screening efficiency, the screener must continuously tumble the ore, generating a significant amount of dust. To prevent dust from freely dispersing and affecting the working environment, some mineral processing equipment is equipped with dust removal devices.

[0003] For related technology, please refer to Chinese patent publication number CN219273919U, which discloses a dust removal device for quartz stone production using a drum screening machine. The device comprises a transfer box, one end of which is fixedly connected to a receiving box, the other end of which is fixedly mounted to a discharge box, a spiral rod movably mounted inside the transfer box, and a dust collection box fixedly mounted at the bottom of the transfer box. This device transports quartz stone using the spiral rod inside the transfer box, absorbing dust during the movement of the quartz stone. The device can be installed at the feed and discharge points of the drum screening machine without affecting its normal operation.

[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 relatively 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:

[0007] A dust removal device for a mining screening machine includes 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 provided in the collection box, the filter plate is located between the air fan and the dust suction pipe, a plurality of filter plates are provided, a support plate is fixedly connected to the collection box in the horizontal direction, the support plate is vertically arranged, 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 is connected to the support plate, a cleaning plate is provided 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 to the support plate along the arrangement direction of the filter plates, and the collection box is provided with a driving part for driving the cleaning plate to move. A number of exhaust holes are provided on the side of the cleaning plate close to the support plate. An air supply part is fixed to the outside of the collection box, and an air supply pipe is connected between the air supply part and the cleaning plate. The air supply part conveys high-speed airflow to all the exhaust holes through the air supply pipe. A dust box is provided at the lower end of the collection box, and an ash discharge port is vertically opened in the collection box, which is opposite to the ash box. The ash discharge port is located on the side of the support plate close to the dust suction pipe. A guide plate is provided in the collection 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.

[0008] By adopting the above technical solution, when the air fan is working, the airflow mixed with dust in the mining screening machine is sucked in 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 by the air fan. After passing through the filter plate, the filter plate filters the airflow and traps the dust on the side of the support plate near 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 delivers high-speed airflow to all exhaust holes through the air supply pipe. The airflow impacts the filter plate and 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. The above operation is repeated so that the cleaning plate cleans all filter plates in turn. Manual cleaning of the filter plates is unnecessary, and there is no need to stop the machine during the cleaning process, which is beneficial to improving the dust removal convenience in the mineral processing process.

[0009] Optionally, a plurality of baffles are provided on one side of the collection box close to the dust storage box. The baffles are located directly below the ash discharge port and correspond one-to-one to the filter plates. All baffles are arranged along the moving direction of the cleaning plate, and two adjacent baffles conflict with each other. An elastic member is provided between the baffle and the collection box. The elastic member applies a thrust toward 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. When the cleaning plate moves, the push block is driven to contact and separate with the guide block. When the push block contacts the guide block, it drives the guide block close to the air fan.

[0010] 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, under the action of the elastic member 1, blocks the ash discharge port, reducing the probability of dust in the ash box being re-floated during airflow. When the cleaning plate moves, it drives the push blocks closer to the guide blocks one by one, and then drives the baffles to move one by one, so that the baffles avoid the guide plates.

[0011] Optionally, the lower end of the support plate is vertically slidably connected to a flat plate, the flat plate is located above all baffles, and 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 fixed 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.

[0012] By adopting the above technical solution, under the action of the elastic member three, the flat plate drives the blade portion to fit with the baffle. When the baffle moves under the action of the push block, the blade portion scrapes and cleans the upper end surface of the baffle, thereby reducing the probability of dust adhering to the end of the baffle.

[0013] 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 of approaching or moving away from the support plate. When the guide plate is facing 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 close to 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.

[0014] By adopting the above technical solution, the second elastic member drives the sealing plate to fit with the support plate, which is beneficial to improving 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.

[0015] Optionally, a cleaning ring is provided in the collection box, and the cleaning ring is located on the 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 collection box, and the cleaning ring is slidingly connected to the collection box along the direction of the dust suction pipe pointing to the air fan. The collection box is provided with a pushing member for driving the cleaning ring to move. The side of the collection box close to the dust suction pipe is vertically opened with an exhaust port connected to the dust box, and the width of the exhaust port is not greater than the width of the cleaning ring.

[0016] By adopting the above technical solution, in the initial state, the cleaning ring is located at the discharge outlet and blocks the discharge outlet. 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 pointing 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 dust discharge outlet. During the movement of the cleaning ring, if dust falls on the side of the cleaning ring away from the support ring, the dust will be driven to move toward the discharge outlet when the cleaning ring is reset, so that this part of the dust passes through the discharge outlet and falls into the dust box.

[0017] 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 support plate adapted to the stay port is fixed on the side of the guide plate facing away from the support plate.

[0018] 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 face of the support plate.

[0019] 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 collection 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 collection 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 collection 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 collection box, and is used to drive 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.

[0020] 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 the moving block drives the shield plate through the through slot. In the initial state, the cleaning ring is located at the discharge position, and the shield plate blocks the through slot, reducing the probability of dust falling into the through slot.

[0021] 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 is opposite to the support plate.

[0022] 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 causing the dust on the side of the guide plate away from the support plate to fall off.

[0023] Optionally, the collection 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 fixed at the lower end of the spray pipes. A water tank is installed outside the collection box. All the spray pipes are connected to the water tank. The water tank is provided with a water pump for delivering water to the spray pipes. The ash box is slidably connected to the collection box in the horizontal direction.

[0024] 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 the 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.

[0025] Optionally, the cleaning plate has a plurality of movable holes opened laterally on one side close to the support plate, and an impact rod is provided in all the movable holes, which is slidingly connected to the cleaning plate along the axis 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 the end of all the movable holes away from the support plate is connected to the air duct, and the collection 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.

[0026] 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. By cleaning the filter plate in different ways, the cleaning convenience of the filter plate is improved.

[0027] In summary, this application includes at least one of the following beneficial technical effects:

[0028] 1. When the air fan is working, the airflow mixed with dust in the mining screening machine is sucked in 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 transmits high-speed airflow to all exhaust holes through the air supply pipe. The airflow impacts the filter plate, thereby shaking 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 for manual operation when cleaning 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.

[0029] 2. When the air flow hits 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 is cleaned in different ways, which improves the cleaning convenience of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the embodiment.

[0031] Figure 2 This is a schematic diagram intended to highlight the internal structure of the collection box and dust box.

[0032] Figure 3 This is a schematic diagram intended to highlight the support plate structure.

[0033] Figure 4 yes Figure 3 Schematic diagram of the enlarged portion B.

[0034] Figure 5 This is a schematic diagram intended to highlight the external structure of the cleaning board.

[0035] Figure 6 This is a schematic diagram intended to highlight the connection structure between the cleaning plate and the ventilation disk.

[0036] Figure 7 This is a schematic diagram intended to highlight the guide plate structure.

[0037] Figure 8 yes Figure 3Enlarged schematic diagram of part C.

[0038] Figure 9 This is a schematic diagram intended to highlight the connection structure between the water tank and the sprinkler pipe.

[0039] Figure 10 It is a schematic diagram intended to highlight the connection structure between the cleaning plate and the impact rod.

[0040] Figure 11 yes Figure 2 Enlarged schematic diagram of part A.

[0041] Explanation of Reference Numerals: 1. Collection Box; 11. Dust Collection Pipe; 12. Air Fan; 13. Bottom Plate; 131. Exhaust Port; 14. Ash Exhaust Port; 141. Stay Port; 15. Baffle; 151. Elastic Component 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 Component 3; 322. Blade; 4. Cleaning Plate; 41. Exhaust Hole; 411. First Cavity; 412. Air vent; 42. Push block; 43. Moving hole; 441. Impact rod; 442. Reset member; 45. Second cavity; 46. Air duct; 471. Turntable; 472. Multifaceted rod; 48. Ventilation plate; 481. Air inlet; 482. Multifaceted hole; 5. Driving member; 6. Air supply member; 61. Air supply pipe; 7. Ash 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. Swinging rod; 85. Closing plate; 851. Elastic member 2; 852. Scraper; 9. Cleaning ring. DETAILED DESCRIPTION

[0042] The present application is further described in detail below in conjunction with all the accompanying drawings.

[0043] An embodiment of the present application discloses a dust removal device for a mining screening machine.

[0044] Example:

[0045] Reference Figure 1 and Figure 2A dust removal device for a mining screening machine includes a collection box 1. An ash box 7 is provided at the lower end of the collection box 1. The ash box 7 is laterally slidably connected to the collection box 1 and has a receiving portion adapted for the ash box 7. Initially, the ash box 7 is located in the receiving portion and is in an operational state. A bottom plate 13 is laterally fixedly connected to the collection box 1. The bottom plate 13 is located at the upper end of the ash box 7 and isolates the ash box 7 from the collection box 1.

[0046] Reference Figure 1 and Figure 2 The collection box 1 is hollow, and one end of the collection box 1 is connected to a dust suction pipe 11, and the other end of the collection box 1 is installed with an air fan 12. When the air fan 12 is working, the gas in the collection box 1 is discharged along the dust suction pipe 11 in the direction of the air fan 12. The end of the dust suction pipe 11 away from the collection box 1 is used to connect to the working area of the mining screening machine. When the gas in the collection 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 during the screening process and the air flow enter the collection box 1 at the same time.

[0047] 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 horizontal direction. Filter plates 2 are provided in all openings 31. The filter plates 2 are fixed with a frame 21 along 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.

[0048] Reference Figure 1 and Figure 2 The bottom plate 13 defines 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 disposed at the lower end of the bottom plate 13. These baffles 15 are arranged along the arrangement of the filter plates 2, and adjacent baffles 15 are abutted against each other. The baffles 15 are slidably connected to the bottom plate 13 along their length. An elastic member 151 is disposed between the bottom plate 13 and the baffles 15. The elastic member 151 is a spring with one end fixedly connected to the bottom plate 13 and the other end fixedly connected to the baffle 15. The elastic member 151 applies a thrust force to the baffle 15 toward the dust collection tube 11.

[0049] Reference Figure 2 and Figure 3The lower end of the base plate 13 is fixedly connected to a positioning block corresponding to the baffle 15. The baffle 15, under the action of the elastic member 151, contacts the positioning block. At this point, all baffles 15 cooperate to block the ash discharge port 14. The collection box 1 also includes a cleaning plate 4 and a guide plate 8. The cleaning plate 4 is located on the side of the support plate 3 near 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 near the dust collection pipe 11. The projections of the cleaning plate 4 and the guide plate 8 on the support plate 3 overlap, and the area of the end surface of the cleaning plate 4 and the guide plate 8 near each other is larger than the diameter of the opening 31.

[0050] 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 group. 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 both rotatably connected to the collection box 1 around their own axes.

[0051] Reference Figure 2 and Figure 3 Screw 1 passes through cleaning plate 4 and is threadedly connected to it. Under the restraining action of support plate 3 and collection box 1, screw 1 rotates, driving cleaning plate 4 to move. Screw 2 passes through guide plate 8 and is threadedly connected to it. Rotating screw 2 drives guide plate 8 to move. Motor 2 is mounted outside collection box 1. A sprocket assembly connects screws 1 and 2 to the output shaft of motor 2, allowing motor 2 to rotate both screws simultaneously when motor 2 is operating, thereby causing cleaning plate 4 and guide plate 8 to move synchronously.

[0052] 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 opening 31.

[0053] Reference Figure 5 and Figure 6 The cleaning plate 4 has a plurality of evenly spaced exhaust holes 41 on one side thereof, adjacent to the support plate 3, and a first cavity 411 communicating with all the exhaust holes 41. A vent hole 412 communicating with the first cavity 411 is formed on one side of the cleaning plate 4 along its transverse direction. A ventilation disk 48 is rotatably connected to the side of the cleaning plate 4 where the vent holes 412 are formed. The ventilation disk 48 has air inlet holes 481 formed radially therein. When the ventilation disk 48 rotates, the air inlet holes 481 are connected to or disconnected from the air inlet holes 412.

[0054] Reference Figure 1 and Figure 6The end of the aeration plate 48 away from the cleaning plate 4 is connected to an air supply pipe 61, which is connected to the air inlet 481. A gas supply component 6 is mounted on the outside of the collection box 1. The gas supply component 6 includes a gas cylinder and a solenoid valve. The gas cylinder is connected to the aeration plate 48 via the gas supply pipe 61. The solenoid valve is mounted on the side of the gas supply pipe 61 near the gas cylinder and is used to control the connection and disconnection between the gas cylinder and the gas supply pipe 61. The gas supply pipe 61 is a flexible hose and moves synchronously with the movement of the cleaning plate 4.

[0055] Reference Figure 3 and Figure 7 The guide plate 8 has an escape groove 81 on its side near the support plate 3. The lower end of the escape groove 81 is connected to the outside world. When the cleaning plate 4 is facing the through-port 31, the escape groove 81 is connected to the end of the through-port 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 in the resting position, the push block 42 does not contact any of the baffles 15.

[0056] 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 collides 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 dust box 7 is located through the avoidance groove 81.

[0057] Reference Figure 5 and Figure 8 The lower end of the support plate 3 is vertically slidably connected to a flat plate 32. A third elastic member 321 is provided between the flat plate 32 and the support plate 3. The third elastic member 321 is a spring, one end of which is fixedly connected to the flat plate 32, and the other end of which is fixedly connected to the support plate 3. The third elastic member 321 applies a thrust force to the flat plate 32 toward the baffle 15, causing the flat plate 32 to fit closely with the baffle 15. A blade portion 322 is fixedly provided on the side of the flat plate 32 near the dust collection pipe 11. When the baffle 15 moves away from the dust collection 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.

[0058] Reference Figure 1 and Figure 6When 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. The high-speed airflow flows along the air inlet 481 and the air vent 412 in sequence, enters the first cavity 411, and is finally ejected 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 (refer to 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.

[0059] Reference Figure 6 The guide plate 8 is provided with sealing plates 85 on both sides along its width. The sealing plates 85 are slidably connected to 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 move with it. When the avoidance groove 81 is connected to any opening 31, the filter plate 2 in the opening 31 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 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 its natural state, the second elastic member 851 pushes the sealing plate 85 into contact with the support plate 3, thereby improving the sealing effect between the guide plate 8 and the support plate 3 during the cleaning process.

[0060] Reference Figure 6 The two sealing plates 85 are fixed with scrapers 852 along the length direction on the side away from each other. When the sealing plates 85 move, the scrapers 852 are driven to move, and the scrapers 852 are in contact with the support plate 3. When the guide plate 8 moves, the sealing plate 85 uses the scrapers 852 to scrape and clean the end surface of the support plate 3 close to the dust collection pipe 11, thereby facilitating the cleaning of dust attached to the support plate 3.

[0061] Reference Figure 6 An impact plate 83 is provided in the avoidance groove 81, and a connecting piece 84 is provided on the guide plate 8 for suspending the impact plate 83. The connecting piece 84 includes a rotating shaft 841 and a swinging rod 842. The rotating shaft 841 is located in the avoidance groove 81 and is fixedly connected to the guide plate 8. The rotating shaft 841 passes through the swinging rod 842 and is rotatably connected to the swinging rod 842. The impact plate 83 is fixedly connected to the end of the swinging rod 842 away from the rotating shaft 841. In the 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 impacts the impact plate 83, causing the impact plate 83 to collide with the guide plate 8, thereby driving the guide plate 8 to vibrate, thereby facilitating the shaking off of dust on the outside of the guide plate 8.

[0062] Reference Figure 2 and Figure 9The upper end of the ash box 7 is equipped with multiple spray pipes 17, and all spray pipes 17 are fixedly connected to the collection box 1. A water tank 18 is installed on the outside of the collection box 1 for storing clean water. All spray pipes 17 are connected to the water tank 18, which is equipped with a water pump 181. After the dust is discharged into the ash box 7, the water pump 181 pumps the water in the water tank 18 into all spray pipes 17. The lower end of the spray pipe 17 is equipped with multiple nozzles 171 along its length. High-speed water flows along the spray pipe 17 into the nozzles 171 and is sprayed out by the nozzles 171, thereby reducing the dust in the ash box 7 and further reducing the probability of dust being raised again in the ash box 7.

[0063] Reference Figure 2 and Figure 9 The upper end of the ash box 7 is provided with a plurality of avoidance holes 71, through which the spray pipe 17 passes 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 collection box 1. During the movement, the ash box 7 cleans the upper end of the spray pipe 17 through the side of the avoidance holes 71, which helps to reduce the probability of dust accumulation above the spray pipe 17.

[0064] Reference Figure 1 and Figure 9 A buffer hole 72 communicating with the outside world is provided on one side of the ash box 7. A buffer bag 74 corresponding to the buffer hole 72 is mounted on the outside of the ash box 7. A support shell 73 is fixed to the outside of the ash box 7. The support shell 73 is mounted on the outside of the buffer bag 74 and supports the buffer bag 74. The buffer bag 74 is made of breathable fabric. When dust and air flow enter the ash box 7 along the avoidance groove 81, the air originally in the ash box 7 is discharged through the buffer hole 72 and enters the buffer bag 74. The buffer bag 74 filters the air and buffers the gas in the ash box 7.

[0065] Reference Figure 6 and Figure 10 The cleaning plate 4 also has multiple movable holes 43 formed on one side near the support plate 3. Each movable hole 43 is fitted with a striking rod 441, which is slidably connected to the cleaning plate 4 along the axis of the movable hole 43. A return member 442 is provided between the striking rod 441 and the cleaning plate 4. This return member 442 is a spring, one end of which is fixedly connected to the striking rod 441, and the other end of which is fixedly connected to the cleaning plate 4. When the return member 442 is in its natural position, all striking rods 441 are located within their corresponding movable holes 43.

[0066] Reference Figure 6 and Figure 10The cleaning plate 4 is provided with a second cavity 45 connected to all the movable holes 43. When the impact rod 441 is located in the movable hole 43, the second cavity 45 is not connected to the first cavity 411. The cleaning plate 4 is provided with an air duct 46 connected to the second cavity 45. When the ventilation disk 48 rotates, the air inlet 481 switches between the air duct 46 and the air duct 412. The collecting box 1 is provided with a control component for rotating the ventilation disk 48. The control component includes a turntable 471 and a polygonal rod 472. The turntable 471 passes through the collecting box 1 and is rotatably connected to the collecting box 1. The polygonal 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.

[0067] Reference Figure 2 and Figure 6 The side of the ventilation disc 48 near the rotating disc 471 is provided with a multi-faceted hole 482 adapted to the multi-faceted rod 472. When the cleaning plate 4 is in the rest position, the ventilation disc 48 is directly opposite 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 via the multi-faceted rod 472, so that the ventilation disc 48 drives the air inlet 481 to separate from the air vent 412, and the air inlet 481 is connected to the air duct 46.

[0068] 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 movable 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 movable 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, and then the filter plate 2 vibrates and cleans the filter plate 2. Cleaning the filter plate 2 by vibrating the filter plate 2 is beneficial to reduce the probability of dust being raised again.

[0069] Reference Figure 2 A cleaning ring 9 is disposed within the collection box 1. This ring is located on the side of the support plate 3 near the dust collection tube 11, with its outer edge in contact with the inner wall of the collection box 1. The collection box 1 is provided with a driving member for moving the cleaning ring 9. The driving member comprises 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 slot is defined along the length of the upper end of the collection box 1. The moving block 163 is located within the through slot and is slidably connected to the inner wall of the through slot along its length.

[0070] Reference Figure 2Screw 162 is located within the through slot and is rotatably connected to collection box 1 about its own axis. Motor 161 is mounted outside collection box 1 and drives screw 162. Driven by the through slot, screw 162 rotates, driving movable block 163. Initially, cleaning ring 9 is located at the end of collection box 1 near dust collection tube 11. Movement of movable block 163 drives cleaning ring 9 toward support plate 3.

[0071] Reference Figure 2 As the cleaning ring 9 moves, it cleans the inner wall of the collection box 1. The shielding plate 164 is located within the through-slot and is fixedly connected to the side of the moving block 163 near the support plate 3. The movement of the moving block 163 drives the shielding plate 164 with it. Initially, the cleaning ring 9 is positioned near the dust collection pipe 11. At this point, the shielding plate 164 blocks the through-slot, thereby reducing the chance of dust entering the through-slot during the vacuuming process.

[0072] Reference Figure 2 and Figure 8 When the cleaning ring 9 moves toward the support plate 3, it drives the dust to move toward the ash discharge port 14. The bottom plate 13 is vertically opened with a stop port 141 connected to the ash discharge port 14. When the guide plate 8 is located at the stop position, it is opposite to 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 that falls 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.

[0073] Reference Figure 2 and Figure 8 The bottom plate 13 has an exhaust port 131 on one side near the dust collection pipe 11. Initially, the cleaning ring 9 is positioned at the exhaust port 131, thereby blocking the exhaust port 131. The width of the exhaust port 131 is smaller than that of the cleaning ring 9. When the cleaning ring 9 is reset, it pushes dust away from the support plate 3 toward the exhaust port 131.

[0074] Reference Figure 2 and Figure 11A translation plate 19 is provided at the lower end of the base plate 13. The translation plate 19 is slidably connected to the base plate 13 in a direction toward or away from the support plate 3. A thrust spring 191 is provided between the translation plate 19 and the base plate 13, which applies a thrust force to the translation plate 19 toward the support plate 3. The support plate 82 has an inclined surface along one side thereof, and the translation plate 19 has a corresponding beveled edge. When the support plate 82 approaches the resting position, the inclined surface and the beveled edge contact, causing the support plate 82 to push the translation plate 19 away from the support plate 3, causing the translation plate 19 to avoid the support plate 82.

[0075] Reference Figure 2 and Figure 11 When the guide plate 8 moves away from the retention opening 141, the side of the retention opening 141 cleans the dust on the support plate 82. When the support plate 82 completely leaves the retention opening 141, the translation plate 19, under the action of the thrust spring 191, blocks the retention opening 141, thereby reducing the probability of dust in the dust box 7 entering the collection box 1 through the retention opening 141 during the cleaning of the filter plate 2.

[0076] The dust removal device of a mining screening machine according to the present embodiment of the present application operates as follows: when the air fan 12 is operating, dust generated by the ore screening machine is sucked through the dust suction pipe 11. The dust enters the collection box 1 and passes through the opening 31 on the support plate 3. The filter plate 2 then filters the airflow passing through the filter plate 2, trapping the dust on the side of the filter plate 2 near the dust suction pipe 11. When cleaning the filter plate 2, the driving member 5 drives the cleaning plate 4 out of the resting portion so that the cleaning plate 4 faces any opening 31. At this time, the air source member delivers high-speed airflow into the first cavity 411 of the cleaning plate 4 through the air supply pipe 61. The airflow passes through the exhaust hole 41 and impacts the filter plate 2. Under the action of the guide plate 8, the dust attached to the filter plate 2 is then driven along the avoidance groove 81 through the ash discharge port 14 and falls into the ash storage box 7. The above operation is repeated, and the cleaning plate 4 moves to the next opening 31, thereby cleaning all the filter plates 2 in sequence. The filter plates 2 do not need to be removed when cleaning, which improves the dust removal convenience during the mineral processing process.

[0077] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection 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 being provided on one side of the collecting box (1), an air fan (12) being installed on the side of the collecting box (1) away from the dust suction pipe (11), a filter plate (2) being provided in the collecting box (1), the filter plate (2) being located between the air fan (12) and the dust suction pipe (11), and characterized in that: The filter plates (2) are provided with a plurality of them. A support plate (3) is fixedly connected to the collection box (1) in the horizontal direction. The support plate (3) is vertically provided and divides the collection box (1) into two independent spaces. The support plate (3) is opened with a plurality of openings (31) corresponding to the filter plates (2) in the horizontal direction. 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) A driving member (5) is provided for driving the cleaning plate (4) to move. A plurality of exhaust holes (41) are provided on one side of the cleaning plate (4) close to the support plate (3). An air supply member (6) is fixedly provided on the outside of the collection box (1). An air supply pipe (61) is connected between the air supply member (6) and the cleaning plate (4). The air supply member (6) delivers high-speed airflow to all the exhaust holes (41) through the air supply pipe (61). An ash box (7) is provided at the lower end of the collection box (1), and an ash discharge port (14) is vertically opened on the collection box (1) and is directly opposite to the ash box (7). The ash discharge port (14) is located on the support plate (3) close to the dust collection pipe (1). 1), a guide plate (8) is provided in the collection box (1), the guide plate (8) is arranged in parallel with the cleaning plate (4) and moves synchronously with the cleaning plate (4), and a side of the guide plate (8) close to the support plate (3) is vertically opened with an avoidance groove (81); a side of the collection box (1) close to the ash box (7) is provided with a plurality of baffles (15), the baffles (15) are located just below the ash 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) conflict with each other, and the baffles (15) and the collection box (1) are arranged in a direction parallel to the cleaning plate (4), and two adjacent baffles (15) conflict with each other. An elastic member (151) is provided between the baffles (15), and the elastic member (151) applies a thrust directed toward the dust suction pipe (11) to the baffle (15). The support plate (3) is located at the upper end of all the baffles (15) and contacts the upper end surface of the baffle (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 with the guide block (152). When the push block (42) contacts with the guide block (152), the guide block (152) is driven to approach the air fan (12).

2. The dust removal device of a mining screening machine according to claim 1, 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 the upper end of the baffle (15).

3. The dust removal device of 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 the direction of approaching or moving away from the support plate (3). When the guide plate (8) is facing 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) to move it closer to the support plate (3). The two sealing plates (85) are fixedly connected to 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).

4. The dust removal device for a mining screening machine according to claim 1, characterized in that: A cleaning ring (9) is provided in the collection box (1), and 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), and the cleaning ring (9) is slidably connected to the collection box (1) along the direction of the dust suction pipe (11) pointing 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), and the width of the discharge port (131) is not greater than the width of the cleaning ring (9).

5. The dust removal device for a mining screening machine according to claim 1, characterized in that: The collecting 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) along the length direction, and the length of the stop opening (141) is not less than the width of the guide plate (8). A supporting 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).

6. The dust removal device for a mining screening machine according to claim 4, characterized in that: The pushing member comprises a motor (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 (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).

7. 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).

8. The dust removal device for 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), the lower end of the spray pipes (17) is fixedly provided with a plurality of spray heads (171), 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.

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

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