A multi-stage screening coal gangue sorting device

Abstract

This invention discloses a multi-stage screening and sorting device for coal gangue, belonging to the technical field of coal gangue sorting equipment. It includes a separation box containing multiple layered steel meshes. Multiple separation hoppers, each connected to a different steel mesh, are connected to the lower side of the separation box. A motor and a striking assembly connected to the motor's output are fixedly installed below the separation box, causing the separation box to vibrate. An air extraction pipe is connected inside the separation box, and an extraction assembly is connected to the air extraction pipe. The striking assembly provides power to the extraction assembly. A collection box and a liquid tank, connected to the extraction assembly, are installed below the separation box. A spraying assembly is connected to the liquid tank and is also connected to the collection box. The extraction assembly provides power to the spraying assembly.

Description

Technical Field

[0001] This invention relates to the field of coal gangue sorting equipment, and specifically discloses a multi-stage screening coal gangue sorting device. Background Technology

[0002] Coal gangue is a major solid waste generated during coal mining and washing. It is also a low-calorific-value fuel and building material that can be recycled. Widely generated in coal mining and washing, its proper sorting and processing not only affects the utilization rate of coal resources but also impacts ecological protection and resource recycling. Coal gangue sorting is a core pre-process for the resource utilization of coal gangue. Sorting equipment separates coal gangue from coal and grades it according to particle size, enabling the classified recycling and tiered utilization of coal gangue. Therefore, multi-stage screening coal gangue sorting devices are core supporting equipment in the field of coal gangue treatment.

[0003] Multi-stage screening and sorting coal gangue is primarily designed for the multi-stage screening and precise sorting of coal gangue produced during mining and washing, effectively separating it from coal. It also grades the gangue according to particle size, adapting to the processing needs of coal mines and coal washing plants of different sizes. Widely used in underground coal mines and surface washing workshops, it improves sorting efficiency and accuracy, promotes the resource recycling of coal gangue, and reduces the environmental pressure from solid waste accumulation. In the actual multi-stage screening and sorting process, dust removal efficiency, energy consumption control, and system adaptability directly affect the working environment, processing efficiency, and equipment applicability. Currently, there are key issues that urgently need to be addressed in the application of multi-stage screening and sorting coal gangue with integrated dust removal systems.

[0004] Existing dust removal equipment can only simply suck up dust generated during operations, lacking a combined dust extraction and spraying structure. This prevents simultaneous dust extraction and suppression, resulting in low dust collection efficiency and a large amount of dust easily overflowing and spreading into the work area, polluting the workshop environment and endangering the health of operators. Furthermore, existing coal gangue screening dust removal equipment uses a fixed dust removal mode, unable to adaptively adjust the suction speed according to changes in the amount of material being screened. The suction airflow remains constant. When the amount of material being screened is large and dust generation is high, dust removal is incomplete, and dust easily overflows and spreads. When the amount of material being screened is small and dust generation is low, the constant airflow results in significant energy waste and low energy efficiency. In addition, the traditional equipment's dust extraction and spraying systems are independent, unable to synchronously adjust the water spray volume according to the suction airflow. This can lead to insufficient water spraying, resulting in inadequate wetting and adhesion of dust and poor dust removal, or excessive water spraying, wasting water resources and failing to meet energy-saving and green production requirements. Meanwhile, traditional dust collection structures cannot automatically adjust the conveying rate of the dust-water mixture based on the actual amount of dust and wastewater collected. As the operation progresses, the dust-water mixture in the collection box tends to accumulate and silt up, gradually encroaching on the dust collection space, thereby reducing the dust adsorption and collection efficiency and affecting the smooth progress of the dust collection process. Therefore, a multi-stage screening coal gangue sorting device was invented to address this defect. Summary of the Invention

[0005] To address the aforementioned technical problems, the present invention adopts the following technical solution: a multi-stage screening and sorting device for coal gangue, comprising: a separation box, wherein multiple layered steel meshes are installed inside the separation box, and multiple separation buckets connected to different steel meshes are connected to the lower side of the separation box, so that coal gangue of different sizes can be separated from the separation box through different separation buckets by using different steel meshes.

[0006] The motor has a striking component connected to its output end, which causes the separation box to vibrate.

[0007] The system consists of an extraction pipe and a collection box. One end of the extraction pipe extends into the separation chamber, and an extraction component is connected to the extraction pipe and then connected to the collection box. The extraction component sends the dust from the separation chamber into the collection box, and the tapping component provides the power source for the extraction component.

[0008] The system includes a liquid tank and a storage tank. The liquid tank contains water and is connected to a spraying assembly that is also connected to a collection box. The spraying assembly sprays water from the liquid tank into the collection box, which is connected to a pressure conveying assembly that quickly delivers the water and dust mixture from the collection box into the storage tank.

[0009] Furthermore, the striking assembly includes a support frame, on which a sliding shaft is slidably mounted. The sliding shaft is fixedly connected to the separation box. A first spring is wound around the outer surface of the sliding shaft. One end of the first spring is fixedly mounted on the support frame, and the other end of the first spring is fixedly mounted on the lower side of the separation box. A fixing rod is fixedly mounted on the support frame, and at least one impact rod is slidably mounted on the fixing rod. A side block is fixedly mounted on the lower side of the impact rod, and a positioning groove is provided on the side of the side block.

[0010] Furthermore, the motor output end is connected to a first transmission chain, a fixed frame is fixedly installed on the support frame, and a transmission shaft is rotatably installed on the fixed frame. The transmission shaft is connected to the motor output end through the first transmission chain to form a chain drive. A first turntable is fixedly installed at the end of the transmission shaft facing the moving rod, and a positioning block is eccentrically set at the end of the first turntable away from the transmission shaft. The positioning block is slidably installed on the inner wall of the positioning groove.

[0011] Furthermore, the mesh size of the steel mesh in the separation box gradually decreases from top to bottom. Each steel mesh is fixedly installed with a baffle on its lower side. The side of the baffle overlaps with the inner wall of different separation buckets. The baffles enable different steel meshes to be connected to different separation buckets in sequence. The steel mesh is installed at an angle inside the separation box, with the lowest point of the steel mesh connecting with the separation bucket.

[0012] Furthermore, the extraction assembly includes a first power plate fixedly mounted on the motor output end, an air extraction cylinder fixedly mounted on the lower end of the air extraction pipe, an inlet pipe connected to the air extraction pipe, the end of the inlet pipe away from the air extraction pipe communicating with the collection box, a transmission shaft rotatably mounted on the side of the fixed frame, a second power plate fixedly mounted on the outer surface of the transmission shaft, a swing linkage rotatably connected to the side of the first power plate away from the fixed frame, the end of the swing linkage away from the first power plate rotatably connected to the second power plate, a second turntable fixedly mounted to the end of the transmission shaft away from the second power plate, and a first connecting rod rotatably connected to the side of the second turntable away from the fixed frame.

[0013] Furthermore, the connection point between the first connecting rod and the second turntable is not located at the center of the second turntable, and the end of the first connecting rod away from the second turntable is rotatably connected to the first piston rod, which is slidably mounted on the inner wall of the suction cylinder.

[0014] Furthermore, the pressing assembly includes a support plate fixedly installed on the side of a support frame, a rotating shaft rotatably mounted on the support plate, a tilting plate fixedly mounted on the rotating shaft, an mounting bracket fixedly mounted on the support plate, a tray fixedly mounted on the mounting bracket, a collection box fixedly connected to the tray, a second connecting rod rotatably connected to the tilting plate, and the end of the second connecting rod away from the tilting plate rotatably connected to a first connecting rod; a first fixing block fixedly mounted on a fixed frame, a third connecting shaft rotatably mounted on the first fixing block, a second transmission chain connected to the third connecting shaft, the third connecting shaft connected to the motor output end through the second transmission chain to form a chain drive, a third power disc fixedly mounted on the outer surface of the third connecting shaft, a centrifugal tank provided on the side of the third power disc, a centrifugal rod fixedly mounted on the inner wall of the centrifugal tank, a moving displacement block slidably mounted on the outer surface of the centrifugal rod, a second spring wound around the outer surface of the centrifugal rod, one end of the second spring fixedly mounted on the inner wall of the centrifugal tank, the other end of the second spring fixedly mounted on the side of the moving displacement block, a second connecting rod rotatably mounted on the outer surface of the moving displacement block, and a second fixing block rotatably mounted on the end of the second connecting rod away from the moving displacement block, the second fixing block being fixedly connected to the tilting plate.

[0015] Furthermore, the spraying assembly includes a third turntable fixedly mounted on the outer surface of the rotating shaft. A moving block is eccentrically mounted on the side of the third turntable away from the rotating shaft. An installation block is fixedly mounted on a support plate. A moving rod is slidably mounted on the side of the installation block. A moving groove is provided on the side of the moving rod. The moving block is slidably mounted on the inner wall of the moving groove. A second piston rod is fixedly mounted on the moving rod. An air blower is fixedly mounted on the side of the liquid tank and communicates with the inside of the liquid tank. The second piston rod is slidably mounted on the inner wall of the air blower. A water supply pipe is connected to the side of the liquid tank. The end of the water supply pipe away from the liquid tank communicates with the collection box. A base plate is fixedly mounted on the tray and is fixedly connected to the collection box. A circular through hole is provided on the base plate. A nozzle is fixedly mounted in the circular through hole of the base plate. An intermediate block is fixedly mounted on the underside of the tray and communicates with the nozzle and the water supply pipe.

[0016] Furthermore, an intermediate tube is fixedly installed on the base plate. The intermediate tube is connected to the inside of the collection box. The end of the intermediate tube away from the collection box is connected to a conveying pipe. The end of the conveying pipe away from the intermediate tube is connected to the inside of the storage box.

[0017] Furthermore, a lifting plate is slidably installed on the inner wall of the collection box, and a lifting rod is fixedly installed on the lifting plate. A curved connecting rod is rotatably installed on the outer surface of the lifting rod. A fourth connecting shaft is rotatably installed at the end of the curved connecting rod away from the lifting rod. The fourth connecting shaft is fixedly connected to the second fixed block. An abutment frame is fixedly installed at the lower part of the lifting plate. The size of the abutment frame is smaller than the size of the lifting plate. Multiple brushes are fixedly installed in a ring shape on the side of the abutment frame. When the lifting plate slides along the inner wall of the collection box, the brushes can clean the inner wall of the collection box. Two fifth connecting shafts are fixedly installed on the side of the abutment frame. A rotating connecting rod is rotatably connected to the outer surface of the fifth connecting shaft. A crushing roller is rotatably installed at the end of the rotating connecting rod away from the fifth connecting shaft. The crushing roller rolls in contact with the bottom plate. The two rotating connecting rods are symmetrically arranged. When the lifting plate descends, the two crushing rollers roll towards each other and move closer together. When it rises, it disengages from the bottom plate.

[0018] The beneficial effects of this invention are:

[0019] This invention collects dust generated during the operation of the separation box through the cooperation of the extraction pipe and the extraction component. The extraction and spraying components work together to simultaneously extract dust and spray water, achieving rapid dust collection. The dust extraction speed is automatically adjusted according to the amount of coal gangue being screened. Simultaneously, the spraying and conveying components work together to adjust the amount of water sprayed based on the dust extraction speed, ensuring thorough dust adhesion to the coal gangue. At the same time, the rotational speed of the third power disc adjusts the descent height of the lifting plate along the collection box, thereby adjusting the speed at which the water and dust mixture in the collection box is delivered to the storage box according to the amount of water sprayed and dust collected, thus preventing excessive dust and water mixture from affecting dust adhesion efficiency. Attached Figure Description

[0020] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure proposed in this invention.

[0022] Figure 2 This is a schematic diagram of the position of the feed hopper proposed in this invention.

[0023] Figure 3 The present invention proposes Figure 2 A magnified view of a portion of point A in the middle.

[0024] Figure 4 The present invention proposes Figure 2 A magnified view of a portion of point B in the middle.

[0025] Figure 5This is a schematic diagram of the steel mesh position proposed in this invention.

[0026] Figure 6 The present invention proposes Figure 5 A magnified view of a portion of point C in the middle.

[0027] Figure 7 This is a schematic diagram showing the location of the collection box proposed in this invention.

[0028] Figure 8 This is a schematic diagram showing the location of the protective box proposed in this invention.

[0029] Figure 9 The present invention proposes Figure 8 A magnified view of a portion of point D in the middle.

[0030] Figure 10 This is a schematic diagram of the position of the transmission shaft proposed in this invention.

[0031] Figure 11 This invention proposes Figure 10 A magnified view of a portion of point E in the middle.

[0032] Figure 12 This is a schematic diagram of the liquid tank location proposed in this invention.

[0033] Figure 13 The present invention proposes Figure 12 A magnified view of a portion of point F in the middle.

[0034] Figure 14 This is a schematic diagram showing the location of the collection box proposed in this invention.

[0035] Figure 15 The present invention proposes Figure 14 A magnified view of a portion of point G in the middle.

[0036] Figure 16 This is a schematic diagram of the flip-plate structure proposed in this invention.

[0037] Figure 17 This is a schematic diagram showing the position of the rolling roller proposed in this invention.

[0038] Figure 18 The present invention proposes Figure 17 A magnified view of a portion of point H in the middle.

[0039] Figure 19 This is a schematic diagram of the collection box structure proposed in this invention.

[0040] Reference numerals: 101-Separation box; 102-Enclosed plate; 103-Feed hopper; 104-Separation hopper; 105-First fixed seat; 106-Second fixed seat; 107-Handle; 108-Iron ring; 109-Fixed cylinder; 110-Connecting rod; 111-Support frame; 112-Sliding shaft; 113-First spring; 114-Hook block; 115-Restricting shaft; 201-Lower rod; 202-Fixed rod; 203-Impact rod; 204-Moving rod; 205-Blocking ring; 206-Side block; 207-Steel mesh frame; 208-Steel mesh; 209-Baffle; 210- 211-First mounting bracket; 212-Collection box; 213-First turntable; 214-Protective box; 215-Positioning rod; 216-Positioning slot; 217-Positioning block; 218-Drive shaft; 219-Side panel; 220-Fixing bracket; 221-First drive chain; 301-Evacuation pipe; 302-Evacuation cylinder; 303-Support plate; 304-Flipping plate; 305-Collection box; 306-Infeed pipe; 307-First power plate; 308-Second power plate; 309-Transmission shaft; 310-Swing linkage; 311-Second turntable; 312-First piston rod; 3 13-First connecting rod; 314-First connecting shaft; 315-Motion displacement block; 316-Second connecting rod; 317-Rotating shaft; 318-Support column; 319-Second transmission chain; 320-First fixing block; 321-Third connecting shaft; 322-Third power plate; 323-Second fixing block; 324-Fourth connecting shaft; 325-Centrifuge tank; 326-Centrifuge rod; 327-Second spring; 401-Liquid tank; 402-Sealing cover; 403-Mounting plate; 404-Air blower; 405-Second piston rod; 406-First connecting rod; 407-Second connecting rod; 4 08-Conveying pipe; 409-Third turntable; 410-Moving rod; 411-Moving groove; 412-Moving block; 413-Mounting block; 414-Base plate; 415-Base plate; 416-Intermediate pipe; 417-Water supply pipe; 418-Mounting bracket; 419-Lifting rod; 420-Lifting plate; 421-Tray; 422-Sprayer head; 423-Intermediate block; 424-Contact frame; 425-Brush; 426-Lower block; 427-Fifth connecting shaft; 428-Rotating connecting rod; 429-Compacting roller; 430-Bending connecting rod; 501-Storage box; 502-Intermediate shaft. Detailed Implementation

[0041] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0042] As mentioned in the background section, this application proposes a multi-stage screening and sorting device for coal gangue.

[0043] Appendix Figure 1 To the attached Figure 5 As shown, the system includes a separation box 101, a sealing plate 102 mounted on the separation box 101, a feed hopper 103 fixedly mounted on the sealing plate 102, a cover plate rotatably mounted on the feed hopper 103, which can completely cover the feed hopper 103, and a lock connecting the feed hopper 103 and the cover plate, which can lock the feed hopper 103 and the cover plate, a first fixing seat 105 fixedly mounted on the separation box 101, a second fixing seat 106 fixedly mounted on the sealing plate 102, a hook block 114 fixedly mounted on the side of the second fixing seat 106, a handle 107 rotatably mounted on the side of the first fixing seat 105, an intermediate shaft 502 rotatably mounted on the side of the handle 107, an iron ring 108 slidably mounted on the side of the intermediate shaft 502, a spring wound around the outer surface of the iron ring 108, one end of the spring fixedly mounted on the iron ring 108, and the other end of the spring fixedly mounted on... On the intermediate shaft 502, multiple layered steel mesh frames 207 are installed inside the separation box 101. Each steel mesh frame 207 has a steel mesh 208 fixedly installed on it. Multiple separation buckets 104 are connected to the lower side of the separation box 101 and dock with different steel meshes 208. The mesh size of the steel meshes 208 in the separation box 101 gradually decreases from top to bottom. A baffle 209 is fixedly installed on the lower side of each steel mesh 208. The side of the baffle 209 overlaps with the inner wall of different separation buckets 104. The baffle 209 blocks the different steel meshes 208 and different separation buckets 104 in sequence. The steel meshes 208 are installed at an angle inside the separation box 101. The lowest point of the steel meshes 208 docks with the separation buckets 104. Through the steel meshes 208 with different mesh sizes, coal gangue of different sizes is separated from the separation box 101 through different separation buckets 104.

[0044] As mentioned in the background section, this application proposes a multi-stage screening and sorting device for coal gangue.

[0045] Appendix Figure 4 Appendix Figure 7 To the attached Figure 11As shown, the device includes a motor 219, the output of which is connected to a striking assembly. The striking assembly causes the separation box 101 to vibrate. The striking assembly includes a support frame 111, a sliding shaft 112 slidably mounted on the support frame 111, a connecting rod 110 fixedly mounted on the sliding shaft 112, and a fixed cylinder 109 fixedly mounted on the connecting rod 110. The fixed cylinder 109 is fixedly connected to the separation box 101. A first spring 113 is wound around the outer surface of the sliding shaft 112. One end of the first spring 113 is fixedly mounted on the support frame 111, and the other end is fixedly mounted on the connecting rod 110. On the side, a lower rod 201 is fixedly installed on the lower side of the connecting rod 110, a fixed rod 202 is fixedly installed on the support frame 111, and at least one impact rod 203 is slidably installed on the fixed rod 202. The end of the impact rod 203 facing the lower rod 201 is hemispherical. A retaining ring 205 is fixedly installed on the outer surface of the impact rod 203. The retaining ring 205 is located above the fixed rod 202. A moving rod 204 is fixedly installed on the lower side of the impact rod 203. A side block 206 is fixedly installed on the side of the moving rod 204. A positioning rod 214 is fixedly installed on the side of the side block 206. A positioning groove 215 is provided on the side of the positioning rod 214.

[0046] As mentioned in the background section, this application proposes a multi-stage screening and sorting device for coal gangue.

[0047] Appendix Figure 8 To the attached Figure 12 As shown, the output end of motor 219 is connected to a first transmission chain 221. A fixed frame 220 is fixedly installed on the support frame 111. A protective box 213 is fixedly installed on the fixed frame 220. A side panel 218 is fixedly installed on the side of the protective box 213. Motor 219 is located inside the protective box 213. A transmission shaft 217 is rotatably installed on the fixed frame 220. The transmission shaft 217 is rotatably connected to the protective box 213. The transmission shaft 217 is connected to the output end of motor 219 through the first transmission chain 221 and forms a chain drive. A first turntable 212 is fixedly installed at the end of the transmission shaft 217 facing the moving rod 204. A positioning block 216 is eccentrically set at the end of the first turntable 212 away from the transmission shaft 217. The positioning block 216 is slidably installed on the inner wall of the positioning groove 215.

[0048] As mentioned in the background section, this application proposes a multi-stage screening and sorting device for coal gangue.

[0049] Appendix Figure 5 To the attached Figure 8 As shown, a first mounting frame 210 is fixedly installed on the side of the support frame 111, and a collection box 211 is slidably installed on the first mounting frame 210. The collection box 211 has multiple interlayers, and the multiple interlayers are respectively connected to different separation buckets 104.

[0050] When starting work, the lock on the feed hopper 103 is opened, and then the cover is opened. The coal gangue to be sorted is fed into the separation box 101 through the feed hopper 103. Then the cover is rotated to close the feed hopper 103. Then the lock is used to lock the feed hopper 103 and the cover. Then the motor 219 is started. The motor 219 drives the positioning block 216 to move through the first turntable 212. Then the moving rod 204 drives the impact rod 203 to slide up and down along the fixed rod 202, thereby impacting the lower rod 201 and causing the separation box 101 to vibrate. When the vibration occurs, the coal gangue in the separation box 101 moves along the steel mesh 208. At this time, coal gangue of different sizes falls through the different sizes of the mesh 208 to complete the sorting and enters the different layers of the collection box 211 through the separation hopper 104.

[0051] As mentioned in the background section, this application proposes a multi-stage screening and sorting device for coal gangue.

[0052] Appendix Figure 1 Appendix Figure 7 Appendix Figure 9 To the attached Figure 13 As shown, the assembly includes an extraction pipe 301 and a collection box 305. One end of the extraction pipe 301 extends into the separation box 101. An extraction component is connected to the extraction pipe 301 and is connected to the collection box 305. The extraction component sends dust from the separation box 101 into the collection box 305. The extraction component provides power to the extraction component. The extraction component includes a first power plate 307 fixedly installed at the output end of the motor 219 and an extraction cylinder 302 fixedly installed at the lower end of the extraction pipe 301. An inlet pipe 306, which is a flexible hose, is connected to the extraction pipe 301. An inlet one-way valve is provided at the air inlet end of the extraction cylinder 302, and an outlet one-way valve is provided at the air outlet end of the extraction cylinder 302. The end of the inlet pipe 306 away from the extraction pipe 301 is connected to the collection box 305. A one-way valve is installed at the connection between the inlet pipe 306 and the collection box 305. The valve prevents the material in the collection box 305 from flowing back into the feed pipe 306. A transmission shaft 309 is rotatably mounted on the side of the fixed frame 220. A second power disk 308 is fixedly mounted on the outer surface of the transmission shaft 309. A swing link 310 is rotatably connected to the side of the first power disk 307 away from the fixed frame 220. The end of the swing link 310 away from the first power disk 307 is rotatably connected to the second power disk 308. A second turntable 311 is fixedly mounted to the end of the transmission shaft 309 away from the second power disk 308. A first connecting shaft 314 is eccentrically arranged on the side of the second turntable 311 away from the fixed frame 220. A first connecting rod 313 is rotatably connected to the outer surface of the first connecting shaft 314. A first piston rod 312 is rotatably connected to the end of the first connecting rod 313 away from the second turntable 311. The first piston rod 312 is slidably mounted on the inner wall of the suction cylinder 302.

[0053] Before operation, the motor 219 is started according to the amount of coal gangue to be screened. The more coal gangue to be screened, the faster the output speed of the motor 219. The motor 219 drives the swing connecting rod 310 to move through the first power disc 307. The swing connecting rod 310 drives the second power disc 308 to swing back and forth. The faster the output speed of the motor 219, the faster the swing speed of the second turntable 311. The second turntable 311 drives the first piston rod 312 to move back and forth along the inner wall of the air extraction cylinder 302 through the first connecting rod 313. Thus, the dust generated during the coal gangue sorting process is extracted into the collection box 305 through the feed pipe 306, thereby realizing the adjustment of the dust extraction speed according to the amount of coal gangue to be screened.

[0054] As mentioned in the background section, this application proposes a multi-stage screening and sorting device for coal gangue.

[0055] Appendix Figure 1 Appendix Figure 7 Appendix Figure 9 To the attached Figure 13 As shown, a first fixing block 320 is fixedly installed on the fixing frame 220. A third connecting shaft 321 is rotatably installed on the first fixing block 320. A second transmission chain 319 is connected to the third connecting shaft 321. The third connecting shaft 321 is connected to the output end of the motor 219 through the second transmission chain 319 to form a chain drive. A third power disk 322 is fixedly installed on the outer surface of the third connecting shaft 321. A centrifugal tank 325 is provided on the side of the third power disk 322. A centrifugal rod 326 is fixedly installed on the inner wall of the centrifugal tank 325. A motion displacement block 315 is slidably installed on the outer surface of the centrifugal rod 326. A second spring 327 is wound on the outer surface of the centrifugal rod 326. One end of the second spring 327 is fixedly installed on the inner wall of the centrifugal tank 325. The other end of the second spring 327 is fixedly installed on the side of the moving displacement block 315. When not in operation, the second spring 327 is in a natural state. When the third power disk starts to rotate, under the action of centrifugal force, the moving displacement block 315 moves along the inner wall of the centrifugal tank in a direction away from the center of the third power disk 322. At this time, the second spring 327 is in a stretched state. When the operation stops, the moving displacement block 315 returns to the initial position under the action of the tension of the second spring 327. The second connecting rod 316 is rotatably installed on the outer surface of the moving displacement block 315. The second fixing block 323 is rotatably installed on the end of the second connecting rod 316 away from the moving displacement block 315. The second fixing block 323 is fixedly connected to the flip plate 304.

[0056] As mentioned in the background section, this application proposes a multi-stage screening and sorting device for coal gangue.

[0057] Appendix Figure 10 To the attached Figure 15As shown, the system includes a liquid tank 401 with a screw-on cap 402. The liquid tank 401 is hollow and filled with water. Water can be added from the connection between the liquid tank 401 and the cap 402 after the cap 402 is removed. During operation, the cap 402 is screwed on, and the liquid tank 401 is sealed. A spraying assembly is connected to the liquid tank 401 and is connected to a collection box 305. The spraying assembly sprays water from the liquid tank 401 into the collection box 305. A pressure conveying assembly is also connected to the collection box 305, which quickly conveys the water and dust mixture in the collection box 305 into the storage box 501.

[0058] As mentioned in the background section, this application proposes a multi-stage screening and sorting device for coal gangue.

[0059] Appendix Figure 9 To the attached Figure 15 As shown, the pressurizing assembly includes a support plate 303 fixedly installed on the side of the support frame 111. A rotating shaft 317 is rotatably mounted on the support plate 303. A tilting plate 304 is fixedly mounted on the rotating shaft 317. A mounting bracket 418 is fixedly mounted on the support plate 303. A tray 421 is fixedly mounted on the mounting bracket 418. A base plate 415 is fixedly mounted on the tray 421. A circular through hole is provided on the base plate 415. A nozzle 4 is fixedly installed in the circular through hole of the base plate 415. 22. A middle block 423 is fixedly installed on the lower side of the tray 421. The middle block 423 is connected to the nozzle 422 and the water supply pipe 417. A check valve is installed at the connection between the middle block 423 and the water supply pipe 417. The check valve prevents the material in the collection box 305 from flowing back into the liquid tank 401. The collection box 305 is fixedly installed on the tray 421. During the rotation of the rotating shaft 317 around the support plate, the flip plate 304 does not contact the collection box 305.

[0060] As mentioned in the background section, this application proposes a multi-stage screening and sorting device for coal gangue.

[0061] Appendix Figure 11 To the attached Figure 19 As shown, the spraying assembly includes a third turntable 409 fixedly mounted on the outer surface of the rotating shaft 317. A moving block 412 is eccentrically arranged on the side of the third turntable 409 away from the rotating shaft 317. An installation block 413 is fixedly mounted on the support plate 303. An installation groove 414 is provided on the side of the installation block 413. A second connecting rod 407 is slidably mounted on the inner wall of the installation groove 414. A moving rod 410 is fixedly mounted on the side of the second connecting rod 407. A moving groove 411 is provided on the side of the moving rod 410. The moving block 412 is slidably mounted on the inner wall of the moving groove 411.

[0062] As mentioned in the background section, this application proposes a multi-stage screening and sorting device for coal gangue.

[0063] Appendix Figure 10 To the attached Figure 19 As shown, a first connecting rod 406 is fixedly installed on the second connecting rod 407, and a second piston rod 405 is fixedly installed on the first connecting rod 406. An air blower 404 is fixedly installed on the side of the liquid tank 401, and an mounting plate 403 is fixedly installed on the lower side of the air blower 404. The mounting plate 403 is fixedly connected to the support frame 111. The air blower 404 communicates with the interior of the liquid tank 401. The second piston rod 405 is slidably installed on the inner wall of the air blower 404. A water supply pipe 417 is connected to the side of the liquid tank 401. The water supply pipe 417 is a flexible hose. The end away from the liquid tank 401 is connected to the collection box 305. A base plate 415 is fixedly installed at the bottom of the support plate 303. The base plate 415 is provided with mounting holes. An intermediate tube 416 is fixedly installed on the inner wall of the mounting holes of the base plate 415. A sealing ring is installed at the connection between the base plate 415 and the intermediate tube 416. The intermediate tube 416 is connected to the inside of the collection box 305. The end of the intermediate tube 416 away from the collection box 305 is connected to a conveying pipe 408. The conveying pipe 408 is a flexible hose. The end of the conveying pipe 408 away from the intermediate tube 416 is connected to the inside of the storage box 501.

[0064] Motor 219 drives the third power disk 322 to rotate via the second transmission chain 319. The faster the output speed of motor 219, the faster the speed of the third power disk 322. At this time, the moving displacement block 315 overcomes the elastic force of the second spring 327 and deviates further from the center position of the third power disk 322. At this time, the second connecting rod 316 drives the rotating shaft 317 to reciprocate at a larger angle via the flip plate 304. The rotating shaft 317 drives the moving block 412 to move via the third turntable 409. The moving block 412 drives the second connecting rod 407 to move along the inner wall of the mounting groove 414. The second connecting rod 407 drives the second piston rod 405 to slide back and forth inside the air cylinder 404. The faster the output speed of the motor 219, the greater the distance that the second piston rod 405 slides back and forth inside the air cylinder 404. This allows water in the liquid tank 401 to be sent into the collection box 305 through the water supply pipe 417. The sprayed water adheres to the dust, thus achieving the goal that the faster the output speed of the motor 219, the more water is sent into the collection box 305. This allows the corresponding amount of water to be sent into the collection box 305 according to the amount of dust sent into the collection box 305.

[0065] As mentioned in the background section, this application proposes a multi-stage screening and sorting device for coal gangue.

[0066] Appendix Figure 11 To the attached Figure 18As shown, a lifting plate 420 is slidably installed on the inner wall of the collection box 305. The lifting plate 420 is fixedly connected to the end of the feed pipe 306 away from the suction pipe 301. A one-way valve is installed at the connection between the feed pipe 306 and the lifting plate 420. The one-way valve ensures that only the feed pipe 306 can deliver dust into the collection box 305. The end of the intermediate pipe 416 away from the output pipe 408 coincides with the upper surface of the base plate 415. When the lifting plate 420 slides along the inner wall of the collection box 305, it never contacts the intermediate pipe 416; the dust in the collection box 305 cannot flow back into the feed pipe 306, and the lifting plate 420... A lifting rod 419 is fixedly installed on the upper part of the lifting plate 420. A curved connecting rod 430 is rotatably installed on the outer surface of the lifting rod 419. A fourth connecting shaft 324 is rotatably installed at the end of the curved connecting rod 430 away from the lifting rod 419. The fourth connecting shaft 324 is fixedly connected to the second fixed block 323. An abutment frame 424 is fixedly installed at the lower part of the lifting plate 420. The size of the abutment frame 424 is smaller than the size of the lifting plate 420. Multiple brushes 425 are fixedly installed around the side of the abutment frame 424. When the lifting plate 420 slides along the inner wall of the collection box 305, the inner wall of the collection box 305 can be cleaned by the brushes 425.

[0067] As mentioned in the background section, this application proposes a multi-stage screening and sorting device for coal gangue.

[0068] Appendix Figure 12 To the attached Figure 19 As shown, two lower blocks 426 are fixedly installed on the side of the contact frame 424. A fifth connecting shaft 427 is fixedly installed on the side of each lower block 426. A rotating connecting rod 428 is rotatably connected to the outer surface of the fifth connecting shaft 427. A rolling roller 429 is rotatably installed at the end of the rotating connecting rod 428 away from the fifth connecting shaft 427. The rolling roller 429 rolls in contact with the base plate 415. The two rotating connecting rods 428 are symmetrically arranged. When the lifting plate 420 descends, the two rolling rollers 429 roll towards each other and move closer together. When it rises, they disengage from the base plate 415.

[0069] When the rotating shaft 317 reciprocates, the second connecting rod 316 drives the second fixed block 323 to move. At this time, the lifting plate 420 descends a greater distance along the collection box 305 via the bending connecting rod 430. The lifting plate 420 can then deliver the mixture of dust and water in the collection box 305 into the storage box 501 more quickly. At the same time, the faster the lifting plate 420 descends, the faster the rotating connecting rod 428 drives the crushing roller 429 to slide along the upper surface of the base plate 415. The crushing roller 429 crushes the larger dust particles on the base plate 415 and simultaneously pushes the mixture of water and dust into the storage box 501.

[0070] Working principle:

[0071] (a) When starting work, open the lock on the feed hopper 103, then open the cover plate, and feed the coal gangue to be sorted into the separation box 101 through the feed hopper 103. Then rotate the cover plate to close the feed hopper 103, and then lock the feed hopper 103 and the cover plate with the lock. Then the motor 219 starts. The motor 219 drives the positioning block 216 to move through the first turntable 212, and then drives the impact rod 203 to slide up and down along the fixed rod 202 through the moving rod 204, thereby impacting the lower rod 201, which in turn causes the separation box 101 to vibrate. When the vibration occurs, the coal gangue in the separation box 101 moves along the steel mesh 208. At this time, coal gangue of different sizes falls through the different size grids of the steel mesh 208 to complete the sorting, and enters the different layers of the collection box 211 through the separation hopper 104.

[0072] (ii) Before operation, the motor 219 is started according to the amount of coal gangue to be screened. The more coal gangue to be screened, the faster the output speed of the motor 219. The motor 219 drives the swing connecting rod 310 to move through the first power plate 307. The swing connecting rod 310 drives the second power plate 308 to swing back and forth. The faster the output speed of the motor 219, the faster the swing speed of the second turntable 311. The second turntable 311 drives the first piston rod 312 to move back and forth along the inner wall of the air extraction cylinder 302 through the first connecting rod 313. Thus, the dust generated during the coal gangue sorting process is extracted into the collection box 305 through the feed pipe 306. This allows the speed of dust extraction to be adjusted according to the amount of coal gangue to be screened, and the extracted dust is extracted into the collection box 305 through the feed pipe 306.

[0073] (III) The motor 219 drives the third power disk 322 to rotate via the second transmission chain 319. The faster the output speed of the motor 219, the faster the speed of the third power disk 322. At this time, the moving displacement block 315 overcomes the elastic force of the second spring 327 and deviates from the center position of the third power disk 322 by a greater distance. At this time, the second connecting rod 316 drives the rotating shaft 317 to reciprocate at a larger angle via the flip plate 304. The rotating shaft 317 drives the moving block 412 to move via the third turntable 409. The moving block 412 drives the second connecting rod 407 to move along the mounting groove 414. The inner wall slides back and forth, and the second connecting rod 407 drives the second piston rod 405 to slide back and forth along the inside of the air cylinder 404. The faster the output speed of the motor 219, the greater the distance that the second piston rod 405 slides back and forth along the inside of the air cylinder 404. As a result, the water in the liquid tank 401 is sent into the collection box 305 through the water supply pipe 417. The dust is adsorbed by the sprayed water, so that the more water is sent into the collection box 305 the faster the output speed of the motor 219, the more water is sent into the collection box 305. Thus, the corresponding amount of water is adaptively sent into the collection box 305 according to the amount of dust sent into the collection box 305.

[0074] (iv) When the rotating shaft 317 reciprocates, the second connecting rod 316 drives the second fixed block 323 to move. At this time, the lifting plate 420 is driven to descend a greater distance along the collection box 305 by the bending connecting rod 430. At this time, the mixture of dust and water in the collection box 305 can be sent into the storage box 501 more quickly by the lifting plate 420. At the same time, the faster the lifting plate 420 descends, the faster the rotating connecting rod 428 drives the crushing roller 429 to slide along the upper surface of the bottom plate 415. At this time, the two crushing rollers 429 approach each other to crush the larger dust particles on the bottom plate 415. When the lifting plate 420 rises to the highest position, the crushing roller 429 disengages from the bottom plate 415. The movement of the crushing roller 429 on the bottom plate 415 pushes the mixture of water and dust into the storage box 501.

[0075] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A multi-stage screening and sorting device for coal gangue, characterized in that, include: The separation box (101) is equipped with multiple layered steel meshes (208). Multiple separation buckets (104) connected to different steel meshes (208) are connected to the lower side of the separation box (101). Through different steel meshes (208), coal gangue of different sizes can be separated from the separation box (101) through different separation buckets (104). The motor (219) has a striking component connected to its output end, which causes the separation box (101) to vibrate. The suction pipe (301) and the collection box (305) are connected to the suction pipe (301). One end of the suction pipe (301) extends into the separation box (101). The suction pipe (301) is connected to the extraction component and is connected to the collection box (305). The dust in the separation box (101) is sent into the collection box (305) through the extraction component. The knocking component provides a power source for the extraction component. The liquid tank (401) contains water and is connected to a spraying assembly that is connected to a collection box (305). The spraying assembly can spray the water in the liquid tank (401) into the collection box (305). The collection box (305) is also connected to a pressure conveying assembly that can quickly convey the water and dust mixture in the collection box (305) into the storage box (501).

2. The multi-stage screening and sorting device for coal gangue according to claim 1, characterized in that, The striking assembly includes a support frame (111), on which a sliding shaft (112) is slidably mounted. The sliding shaft (112) is fixedly connected to the separation box (101). A first spring (113) is wound around the outer surface of the sliding shaft (112). One end of the first spring (113) is fixedly mounted on the support frame (111), and the other end of the first spring (113) is fixedly mounted on the lower side of the separation box (101). A fixing rod (202) is fixedly mounted on the support frame (111), and at least one impact rod (203) is slidably mounted on the fixing rod (202). A side block (206) is fixedly mounted on the lower side of the impact rod (203), and a positioning groove (215) is provided on the side of the side block (206).

3. The multi-stage screening and sorting device for coal gangue according to claim 2, characterized in that, The output end of the motor (219) is connected to the first transmission chain (221). A fixed frame (220) is fixedly installed on the support frame (111). A transmission shaft (217) is rotatably installed on the fixed frame (220). The transmission shaft (217) is connected to the output end of the motor (219) through the first transmission chain (221) to form a chain drive. A first turntable (212) is fixedly installed at one end of the transmission shaft (217) facing the moving rod (204). A positioning block (216) is eccentrically set at the end of the first turntable (212) away from the transmission shaft (217). The positioning block (216) is slidably installed on the inner wall of the positioning groove (215).

4. The multi-stage screening and sorting device for coal gangue according to claim 2, characterized in that, The mesh size of the steel mesh (208) in the separation box (101) gradually decreases from top to bottom. Each steel mesh (208) has a baffle (209) fixedly installed on its lower side. The baffle (209) overlaps with the inner wall of different separation buckets (104) through its side. The baffle (209) enables different steel meshes (208) to be connected to different separation buckets (104) in sequence. The steel mesh (208) is installed at an angle inside the separation box (101), and the lowest point of the steel mesh (208) is connected to the separation bucket (104).

5. A multi-stage screening and sorting device for coal gangue according to claim 3, characterized in that, The extraction assembly includes a first power plate (307) fixedly mounted on the output end of a motor (219), an air extraction cylinder (302) fixedly mounted on the lower end of an air extraction pipe (301), an inlet pipe (306) connected to the air extraction pipe (301), and an end of the inlet pipe (306) away from the air extraction pipe (301) communicating with a collection box (305). A transmission shaft (309) is rotatably mounted on the side of a mounting bracket (220), and a second power plate is fixedly mounted on the outer surface of the transmission shaft (309). 308), the side of the first power disk (307) away from the fixed frame (220) is rotatably connected to the swing link (310), the end of the swing link (310) away from the first power disk (307) is rotatably connected to the second power disk (308), the end of the transmission shaft (309) away from the second power disk (308) is fixedly installed with the second turntable (311), the side of the second turntable (311) away from the fixed frame (220) is rotatably connected to the first link (313).

6. A multi-stage screening and sorting device for coal gangue according to claim 5, characterized in that, The connection between the first connecting rod (313) and the second turntable (311) is not located at the center of the second turntable (311). The end of the first connecting rod (313) away from the second turntable (311) is rotatably connected to the first piston rod (312), and the first piston rod (312) is slidably installed on the inner wall of the suction cylinder (302).

7. A multi-stage screening and sorting device for coal gangue according to claim 5, characterized in that, The pressing assembly includes a support plate (303) fixedly installed on the side of the support frame (111), a rotating shaft (317) rotatably mounted on the support plate (303), a tilting plate (304) fixedly mounted on the rotating shaft (317), an installation bracket (418) fixedly mounted on the support plate (303), a tray (421) fixedly mounted on the installation bracket (418), and a collection box (305) fixedly connected to the tray (421); a first fixing block (320) is fixedly mounted on the fixing frame (220), a third connecting shaft (321) rotatably mounted on the first fixing block (320), a second transmission chain (319) connected to the third connecting shaft (321), and the third connecting shaft (321) is connected to the output end of the motor (219) through the second transmission chain (319) to form a chain drive. 1) A third power disk (322) is fixedly installed on the outer surface. A centrifugal tank (325) is provided on the side of the third power disk (322). A centrifugal rod (326) is fixedly installed on the inner wall of the centrifugal tank (325). A motion displacement block (315) is slidably installed on the outer surface of the centrifugal rod (326). A second spring (327) is wound on the outer surface of the centrifugal rod (326). One end of the second spring (327) is fixedly installed on the inner wall of the centrifugal tank (325). The other end of the second spring (327) is fixedly installed on the side of the second connecting shaft (315). A second connecting rod (316) is rotatably installed on the outer surface of the motion displacement block (315). A second fixing block (323) is rotatably installed on the end of the second connecting rod (316) away from the motion displacement block (315). The second fixing block (323) is fixedly connected to the flip plate (304).

8. A multi-stage screening and sorting device for coal gangue according to claim 7, characterized in that, The spraying assembly includes a third turntable (409) fixedly mounted on the outer surface of a rotating shaft (317). A moving block (412) is eccentrically mounted on the side of the third turntable (409) away from the rotating shaft (317). An mounting block (413) is fixedly mounted on a support plate (303). A moving rod (410) is slidably mounted on the side of the mounting block (413). A moving groove (411) is provided on the side of the moving rod (410). The moving block (412) is slidably mounted on the inner wall of the moving groove (411). A second piston rod (405) is fixedly mounted on the moving rod (410). An air blower (404) is fixedly mounted on the side of the liquid tank (401). The air blower (404) is connected to the interior of the liquid tank (401). The second piston rod (405) is slidably installed on the inner wall of the air cylinder (404). A water supply pipe (417) is connected to the side of the liquid tank (401). The end of the water supply pipe (417) away from the liquid tank (401) is connected to the collection box (305). A base plate (415) is fixedly installed on the tray (421). The base plate (415) is fixedly connected to the collection box (305). A circular through hole is provided on the base plate (415). A nozzle (422) is fixedly installed in the circular through hole of the base plate (415). A middle block (423) is fixedly installed on the lower side of the tray (421). The middle block (423) is connected to the nozzle (422) and the water supply pipe (417).

9. A multi-stage screening and sorting device for coal gangue according to claim 8, characterized in that, An intermediate tube (416) is fixedly installed on the base plate (415). The intermediate tube (416) is connected to the inside of the collection box (305). The end of the intermediate tube (416) away from the collection box (305) is connected to a conveying pipe (408). The end of the conveying pipe (408) away from the intermediate tube (416) is connected to the inside of the storage box (501).

10. A multi-stage screening and sorting device for coal gangue according to claim 9, characterized in that, A lifting plate (420) is slidably installed on the inner wall of the collection box (305). A lifting rod (419) is fixedly installed on the lifting plate (420). A curved connecting rod (430) is rotatably installed on the outer surface of the lifting rod (419). A fourth connecting shaft (324) is rotatably installed at the end of the curved connecting rod (430) away from the lifting rod (419). The fourth connecting shaft (324) is fixedly connected to the second fixing block (323). An abutment frame (424) is fixedly installed at the lower part of the lifting plate (420). The size of the contact frame (424) is smaller than that of the lifting plate (420). Multiple brushes (425) are fixedly installed around the side of the contact frame (424). When the lifting plate (420) slides along the inner wall of the collection box (305), the inner wall of the collection box (305) can be cleaned by the brushes (425). Two fifth connecting shafts (427) are fixedly installed on the side of the contact frame (424). A rotating connecting rod (428) is rotatably connected to the outer surface of the fifth connecting shaft (427). A crushing roller (429) is rotatably installed at the end of the rotating connecting rod (428) away from the fifth connecting shaft (427). The crushing roller (429) rolls in contact with the bottom plate (415). The two rotating connecting rods (428) are symmetrically arranged. When the lifting plate (420) descends, the two crushing rollers (429) roll towards each other and move closer together. When it rises, it disengages from the bottom plate (415).

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