Raw coal screening and impurity removing device

Abstract

The embodiment of the invention provides a raw coal screening and impurity removing device, and relates to the technical field of raw coal impurity removing equipment. A raw coal screening and impurity removing device comprises a screening and loading mechanism, a raw coal drainage and vibration mechanism located at the upper end of the screening and loading mechanism, and a raw coal dispersing and dust falling mechanism located in the upper end of the screening and loading mechanism. The raw coal dispersing and dust falling mechanism is located at the lower end of the raw coal drainage and vibration mechanism. The jacking frame can rotate and periodically jack the coal jacking protruding block, in the process that raw coal is jacked and dispersed by the coal jacking protruding block, the first dust suction pipe and the second dust suction pipe suck raised dust, the dust suction effect is improved, meanwhile, the coal jacking protruding block slows down the moving speed of the raw coal, the dust suction time is shortened, and the dust suction efficiency is effectively improved. And meanwhile, when the top coal protruding blocks move upwards, raw coal is dispersed, raw coal accumulation is reduced, and subsequent dust collection and screening are facilitated.

Description

Technical Field

[0001] The present application relates to the technical field of raw coal impurity removal equipment, and in particular to a raw coal screening and impurity removal device. Background Art

[0002] In the process of coal processing, raw coal screening and impurity removal is a key step to ensure coal quality and improve the efficiency of subsequent processing. By reducing the dust content and fine debris in the raw coal, it can not only effectively reduce the harmful gas and dust emissions generated during coal combustion, thereby reducing the degree of pollution to the atmospheric environment, but also avoid the problem of incomplete coal combustion caused by excessive impurities, improve energy utilization efficiency, and reduce energy consumption costs.

[0003] However, during the use of existing raw coal impurity removal equipment, the raw coal often presents an uneven, agglomerated state when entering the screening process, which greatly reduces the accuracy and efficiency of subsequent screening, making it difficult to accurately screen out a large number of impurities, and mixing them into high-quality coal affects the quality of the coal. At the same time, during the dust suction process, the existing raw coal impurity removal equipment usually only absorbs the dust generated by the raw coal during the transportation process, which is not convenient for dust reduction work on the accumulated or agglomerated raw coal, further reducing the impurity removal quality of the raw coal. At the same time, most of the existing raw coal impurity removal equipment is not convenient for scraping and self-cleaning of the equipment, which affects the service life of the equipment and also reduces the impurity removal quality of the raw coal. Summary of the invention

[0004] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a raw coal screening and impurity removal device, which can enable the lifting frame to rotate and periodically lift the top coal block. In the process of the raw coal being lifted and dispersed by the top coal block, the first dust suction pipe and the second dust suction pipe absorb the raised dust, thereby improving the dust suction effect. At the same time, the top coal block also slows down the movement speed of the raw coal, thereby increasing the dust suction time and effectively improving the dust suction efficiency. At the same time, the top coal block disperses the raw coal when moving upward, thereby reducing the accumulation of raw coal, which is beneficial to subsequent dust suction and screening. At the same time, in the process of the raw coal dispersion and dust reduction mechanism periodically lifting the coal blocks, it will also drive the ash scraping and coal disturbing mechanism to rotate synchronously, so that the ash scraping frame can move the raw coal, so that the raw coal is more evenly distributed on the upper part of the conical cover, further assisting the dispersion of the raw coal. At the same time, the ash scraping frame can also scrape off the coal slag adhered to the surface of the conical cover, thereby realizing the cleaning of the conical cover, and part of the coal ash produced by scraping can be sucked away during the dust suction process, thereby realizing linked cleaning and ensuring smooth raw coal processing throughout the process.

[0005] A raw coal screening and impurity removal device according to an embodiment of the present application includes: Screening and loading mechanism; A raw coal drainage vibration mechanism, the raw coal drainage vibration mechanism is located at the upper end of the screening and loading mechanism; A raw coal dispersing and dust reduction mechanism, the raw coal dispersing and dust reduction mechanism is located inside the upper end of the screening and loading mechanism, the raw coal dispersing and dust reduction mechanism is located at the lower end of the raw coal diversion and vibration mechanism, the raw coal diversion and vibration mechanism drives the raw coal dispersing and dust reduction mechanism in the process of reciprocating vibration up and down, so that the raw coal dispersing and dust reduction mechanism disperses the raw coal and increases the dust collection time; The ash scraping and coal disturbing mechanism is located at the upper end of the raw coal dispersing and dust reduction mechanism. During the process of dispersing the raw coal, the raw coal dispersing and dust reduction mechanism synchronously drives the ash scraping and coal disturbing mechanism to rotate, so that the ash scraping and coal disturbing mechanism moves the raw coal while scraping off the coal slag attached to the surface of the raw coal drainage vibration mechanism.

[0006] According to some embodiments of the present application, the screening loading mechanism includes a dust removal box, the lower surface of the dust removal box is fixedly connected to the screening box, one side of the outer wall at the rear end of the screening box is fixedly connected to a first servo motor, the output end of the first servo motor extends to the interior of the screening box and is fixedly connected to a transmission rod, the outer wall in the middle of the transmission rod is fixedly connected to a cam, the inner wall of the screening box near the middle is fixedly connected to a mounting ring, the two sides of the upper surface of the rear end of the mounting ring are respectively fixedly connected to vibration springs, the upper end of the interior of the screening box is hingedly connected to a screening frame, the rear end of the lower surface of the screening frame is fixedly connected to a vibration seat, the cam cooperates with the vibration seat during rotation, the upper end of the vibration spring is fixedly connected to the lower surface of the screening frame, and the inner wall of the screening frame is fixedly connected to a screening net.

[0007] According to some embodiments of the present application, a collecting box is slidably connected to the interior of the lower end of the screening box, and a feed hopper is fixedly connected to the middle of the upper surface of the dust removal box.

[0008] According to some embodiments of the present application, the raw coal drainage vibration mechanism includes a second servo motor, an adjustment special-shaped ring and a conical cover, the second servo motor is fixedly connected to one side of the upper part of the outer wall of the front end of the dust removal box, the output end of the second servo motor is fixedly connected to a driving gear, one side of the upper surface of the front end of the dust removal box is rotatably connected to an intermediate gear seat, the driving gear and the intermediate gear seat are meshed with each other, the adjustment special-shaped ring is rotatably connected to the edge of the upper surface of the dust removal box, the upper end of the adjustment special-shaped ring is provided with an adjustment arc groove, and the outer wall of the lower end of the adjustment special-shaped ring is fixedly connected An outer gear ring is connected, the intermediate gear seat and the outer gear ring are meshed with each other, a cross is fixedly connected to the middle of the inner wall of the dust removal box, an assembly cover is rotatably connected to the edge of the upper surface of the cross, the conical cover is fixedly connected to the upper end of the assembly cover, the outer wall of the assembly cover is fixedly connected to a plurality of connecting lower blocks, the upper surfaces of the connecting lower blocks are fixedly connected to connecting rods, the upper ends of the connecting rods extend to the upper part of the dust removal box and are fixedly connected to connecting upper blocks, the ends of the connecting upper blocks close to the adjusting special-shaped ring are rotatably connected to balls, and the balls cooperate with the adjusting arc grooves; The lower end of the inner wall of the assembly cover is fixedly connected with a plurality of L-shaped connecting plates, the plate bodies of the L-shaped connecting plates pass through the cross and are fixedly connected with a drainage bucket, the inner wall of the lower end of the drainage bucket is fixedly connected with a drainage cover, the lower end of the drainage cover extends to the interior of the screening box, and the drainage cover is located at the upper end of the screening frame.

[0009] According to some embodiments of the present application, the raw coal dispersion and dust reduction mechanism includes a cross frame, the cross frame is fixedly connected to the middle part of the cross, both sides of the front end of the lower surface of the cross frame are fixedly connected with L-shaped connecting seats, the front ends of the L-shaped connecting seats are provided with a plurality of semi-arc teeth, the inner top surface of the front end of the conical cover is fixedly connected with a support frame, the inner wall of the lower end of the support frame is rotatably connected with a first rotating rod, the outer walls on both sides of the first rotating rod are fixedly connected with gear cylinders, and the gear cylinders are meshed with the semi-arc teeth during the rising process, the outer wall of the middle part of the first rotating rod is fixedly connected with a first bevel gear, the middle part of the upper end of the support frame is rotatably connected with a second rotating rod, the lower end of the second rotating rod passes through the cross frame and is fixedly connected with a second bevel gear, and the second bevel gear is meshed with the first bevel gear; The outer wall of the upper end of the second rotating rod is fixedly connected to the first large transmission wheel, the middle part of the inner wall of the front end of the assembly cover is fixedly connected to the adapter plate, the rear end of the upper surface of the adapter plate is rotatably connected to the middle rod, the outer wall of the lower end of the middle rod is fixedly connected to the first small transmission wheel, and the outer walls of the first large transmission wheel and the first small transmission wheel are sleeved with a first transmission belt; The inner wall of the assembly cover is fixedly connected with a plurality of positioning frames, and one end of the upper surface of the positioning frame near the middle of the assembly cover is fixedly connected with a positioning ring, and the upper end of the positioning ring is rotatably connected with an inner gear ring, and the outer wall of the intermediate rod near the lower end is fixedly connected with a driven gear, and the driven gear and the inner gear ring are meshed with each other, and the lower end of the outer wall of the inner gear ring is fixedly connected with a plurality of connecting long plates, and the upper surface of the connecting long plates is fixedly connected with a lifting frame, and the cover body of the conical cover is fixedly connected with a plurality of mounting frames, and the interior of the mounting frame is slidably connected with a top coal protrusion, and the corners of the lower surface of the top coal protrusion are fixedly connected with a second return spring, and the second return spring The lower surfaces are fixedly connected to the inner bottom surface of the mounting frame, and the middle part of the lower surface of the top coal protrusion is fixedly connected with a triangular lifting block, the lower end of the triangular lifting block penetrates the mounting frame and extends to the lower end of the mounting frame, and the lifting frame cooperates with the triangular lifting block during rotation, and the triangular lifting block drives the top coal protrusion to move upward inside the mounting frame, a first dust suction pipe is provided at the lower end of the dust removal box close to the inner wall, and a second dust suction pipe is provided at the upper end of the top of the dust removal box, and a connecting pipe is connected to one side of the rear ends of the first dust suction pipe and the second dust suction pipe, and the connecting pipe penetrates the dust removal box and extends to the outside of the dust removal box, and the first dust suction pipe is located at the lower part of the cross.

[0010] According to some embodiments of the present application, the outer wall at the front end of the L-shaped connecting seat is provided with a plurality of assembly grooves, a plurality of first return springs are fixedly connected to the inside of the assembly grooves, the semi-arc teeth slide inside the assembly grooves, and the outer wall at the rear end of the semi-arc teeth is fixedly connected to the front end of the first return spring.

[0011] According to some embodiments of the present application, the first large transmission wheel is located at the upper end of the cross frame.

[0012] According to some embodiments of the present application, one end of the connecting long plate away from the inner gear ring is fixedly connected to an annular frame, and the annular frame is slidably connected to the inner wall of the assembly cover.

[0013] According to some embodiments of the present application, a plurality of connecting shafts are provided on the inner top surface of the conical cover, and a knocking plate is provided on the outer wall in the middle of the connecting shaft, and the knocking plate extends to the interior of the mounting frame at one end close to the mounting frame, and a knocking arc block is fixedly connected to the end of the upper surface of the knocking plate away from the mounting frame, and the upper surface of the knocking arc block contacts the lower surface of the conical cover, and a lower pressure block is fixedly connected to the end of the upper surface of the knocking plate close to the mounting frame, and the top coal protrusion fits with the upper surface of the lower pressure block during the downward movement.

[0014] According to some embodiments of the present application, the ash scraping and coal disturbing mechanism includes a rotating seat, which is rotatably connected to the middle part of the inner top surface of the conical cover, the inner wall of the rotating seat is provided with a cylinder, the lower end of the outer wall of the cylinder is fixedly connected to a second large transmission wheel, the outer wall of the upper end of the intermediate rod is fixedly connected to a second small transmission wheel, the outer walls of the second large transmission wheel and the second small transmission wheel are sleeved with a second transmission belt, the upper end of the cylinder extends to the upper part of the conical cover and is fixedly connected to an umbrella cover, the lower surface of the umbrella cover is slidably connected to the middle part of the upper surface of the conical cover, and the upper surface of the umbrella cover is fixedly connected to multiple scraping frames.

[0015] The beneficial effects of the present application are as follows: when in use, the raw coal diversion vibration mechanism is located at the upper end of the screening and loading mechanism, and its up and down reciprocating vibration can guide the raw coal to flow to the screening and loading mechanism in an orderly manner, ensuring that the raw coal enters the subsequent processing flow evenly, and at the same time, the vibration process provides driving force for the raw coal dispersion and dust reduction mechanism at the lower end. When driven, the raw coal dispersion and dust reduction mechanism breaks up the raw coal, reduces the accumulation of raw coal, and allows the dust suction equipment to have more sufficient time to absorb dust. At the same time, the scraping and coal disturbing mechanism is synchronously driven to rotate when the raw coal is dispersed, which not only continuously stirs the raw coal, but also prevents the raw coal from agglomerating. The slag adhered to the surface of the raw coal drainage vibration mechanism will be scraped off to keep the surface of the equipment clean and maintain the efficient operation of each mechanism, providing a strong guarantee for the smooth progress of the whole process of raw coal screening and loading. Among them, by making the raw coal drainage vibration mechanism vibrate up and down, the first and second servo motors drive the active gear, the intermediate gear seat, the adjustment special-shaped ring, etc. to cooperate in sequence, so that the assembly cover and the cone cover can vibrate up and down reciprocatingly, thereby ensuring that the raw coal flows evenly and loosely to the top of the screening frame, effectively reducing the accumulation of raw coal lumps and improving the efficiency of subsequent screening. Secondly, the raw coal In the process of the drainage vibration mechanism moving upward, the lifting frame can be rotated and the top coal bulge can be periodically lifted. In the process of the raw coal being lifted and dispersed by the top coal bulge, the first dust suction pipe and the second dust suction pipe absorb the raised dust to improve the dust suction effect. At the same time, the top coal bulge also slows down the movement speed of the raw coal, increases the dust suction time, and effectively improves the dust suction efficiency. At the same time, the top coal bulge disperses the raw coal when moving upward, reduces the accumulation of raw coal, and is beneficial to subsequent dust suction and screening. Thirdly, when the top coal bulge moves downward, it will cause the knocking arc block at the end of the knocking plate to Knocking on the conical hood can shake off impurities such as coal slag attached to the inner wall of the conical hood, further assisting in impurity removal; fourthly, in the process of periodically lifting coal blocks by the raw coal dispersion and dust reduction mechanism, it will also drive the scraper and coal disturbing mechanism to rotate synchronously, so that the scraper frame can move the raw coal, making the raw coal more evenly distributed on the upper part of the conical hood, further assisting in the dispersion of the raw coal; at the same time, the scraper frame can also scrape off the coal slag adhered to the surface of the conical hood, thereby realizing the cleaning of the conical hood, and part of the coal ash produced by scraping can be sucked away during the dust collection process, realizing linked cleaning, and ensuring smooth raw coal processing throughout the process.

[0016] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of a raw coal screening and impurity removal device according to an embodiment of the present application; Figure 2 It is a schematic diagram of the three-dimensional structure of the raw coal drainage vibration mechanism and the raw coal dispersion and dust reduction mechanism according to the embodiment of the present application; Figure 3 It is a cross-sectional view of a screening and loading mechanism and a three-dimensional structural schematic diagram of a raw coal drainage vibration mechanism and a ash scraping and coal disturbing mechanism according to an embodiment of the present application; Figure 4 is a cross-sectional view of a screening and loading mechanism according to an embodiment of the present application; Figure 5 is a cross-sectional view of a screening box according to an embodiment of the present application; Figure 6 It is a cross-sectional view of a dust removal box and a three-dimensional structural schematic diagram of a raw coal drainage vibration mechanism according to an embodiment of the present application; Figure 7 is a cross-sectional view of a raw coal drainage vibration mechanism according to an embodiment of the present application; Figure 8 This is a first assembly diagram of the raw coal dispersion and dust reduction mechanism and the cone cover according to an embodiment of the present application; Fig. 9 is a second assembly diagram of the raw coal dispersion and dust reduction mechanism and the cone cover according to an embodiment of the present application; Fig.10 is a schematic diagram of the three-dimensional structure of the raw coal dispersion and dust reduction mechanism according to an embodiment of the present application; Fig.11 is a first view of an L-shaped connecting seat, a semi-arc tooth and a gear cylinder according to an embodiment of the present application; Fig.12 is a cross-sectional view of a mounting frame according to an embodiment of the present application; Fig.13 This is a first assembly diagram of the raw coal dispersing and dust reduction mechanism and the ash scraping and coal disturbing mechanism according to an embodiment of the present application; Fig.14is a second assembly diagram of the raw coal dispersing and dust reduction mechanism and the ash scraping and coal disturbing mechanism according to an embodiment of the present application; Fig.15 is an assembly diagram of a first dust suction pipe, a second dust suction pipe and a dust removal box according to an embodiment of the present application; Fig.16 is a second view of the L-shaped connecting seat, the semi-arc teeth and the gear cylinder according to an embodiment of the present application; Fig.17 is an assembly diagram of a jacking frame, a triangular jacking block and a conical cover according to an embodiment of the present application; Fig.18 This is a first assembly diagram of a jacking frame, a triangular jacking block and a plaster scraping frame according to an embodiment of the present application; Fig.19 This is a second assembly drawing of the jacking frame, triangular jacking block and scraping frame according to an embodiment of the present application.

[0019] Icons: 1. Screening loading mechanism; 101. Dust removal box; 102. Screening box; 103. First servo motor; 104. Transmission rod; 105. Cam; 106. Mounting ring; 107. Vibration spring; 108. Screening frame; 109. Vibration seat; 110. Screening net; 111. Collection box; 112. Feed hopper; 2. Raw coal drainage vibration mechanism; 201. Second servo motor; 202. Driving gear; 203. Intermediate gear seat; 204. Adjustment of special-shaped ring ; 205, adjusting arc groove; 206, outer gear ring; 207, cross; 208, assembly cover; 209, connecting lower block; 210, connecting rod; 211, connecting upper block; 212, ball bearing; 213, L-shaped connecting plate; 214, drainage bucket; 215, drainage cover; 216, cone cover; 3, raw coal dispersion and dust reduction mechanism; 301, cross frame; 302, L-shaped connecting seat; 303, assembly groove; 304, first return spring; 305, semi-arc teeth; 306, support Support frame; 307, first rotating rod; 308, first bevel gear; 309, second rotating rod; 310, second bevel gear; 311, first large transmission wheel; 312, adapter plate; 313, intermediate rod; 314, first small transmission wheel; 315, first transmission belt; 316, gear cylinder; 317, positioning frame; 318, positioning ring; 319, inner gear ring; 320, driven gear; 321, connecting long board; 322, ring frame; 323, lifting frame; 324, installation frame; 325. Top coal bulge; 326. Second return spring; 327. Triangular lifting block; 328. Connecting shaft; 329. Knocking plate; 330. Knocking arc block; 331. Pressing block; 332. First dust suction pipe; 333. Second dust suction pipe; 334. Connecting pipe; 4. Dust scraping and coal disturbing mechanism; 401. Rotating seat; 402. Cylinder; 403. Second large transmission wheel; 404. Second small transmission wheel; 405. Second transmission belt; 406. Umbrella cover; 407. Dust scraping frame. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0021] In order to make the purpose, technical solutions and advantages of the implementation methods of this application clearer, the technical solutions in the implementation methods of this application will be clearly and completely described below in conjunction with the drawings in the implementation methods of this application. Obviously, the described implementation methods are part of the implementation methods of this application, not all of the implementation methods. Based on the implementation methods in this application, all other implementation methods obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0022] A raw coal screening and impurity removal device according to an embodiment of the present application is described below with reference to the accompanying drawings.

[0023] like Figure 1-Figure 19 As shown, a raw coal screening and impurity removal device according to an embodiment of the present application includes: a screening and loading mechanism 1, a raw coal drainage and vibration mechanism 2, a raw coal dispersion and dust reduction mechanism 3 and a dust scraping and coal disturbing mechanism 4.

[0024] like Figure 1 , Figure 2 and Figure 3 The figure shows a screening and loading mechanism 1, a raw coal drainage and vibration mechanism 2, the raw coal drainage and vibration mechanism 2 is located at the upper end of the screening and loading mechanism 1, a raw coal dispersing and dust reduction mechanism 3, the raw coal dispersing and dust reduction mechanism 3 is located inside the upper end of the screening and loading mechanism 1, the raw coal dispersing and dust reduction mechanism 3 is located at the lower end of the raw coal drainage and vibration mechanism 2, the raw coal drainage and vibration mechanism 2 drives the raw coal dispersing and dust reduction mechanism 3 in the process of reciprocating vibration up and down, so that the raw coal dispersing and dust reduction mechanism 3 disperses the raw coal and increases the dust suction time, and the ash scraping and coal disturbing mechanism 4, the ash scraping and coal disturbing mechanism 4 is located at the upper end of the raw coal dispersing and dust reduction mechanism 3, and the raw coal dispersing and dust reduction mechanism 3 synchronously drives the ash scraping and coal disturbing mechanism 4 to rotate in the process of dispersing the raw coal, so that the ash scraping and coal disturbing mechanism 4 moves the raw coal and scrapes off the coal slag attached to the surface of the raw coal drainage and vibration mechanism 2.

[0025] When in use, the raw coal diversion vibration mechanism 2 is located at the upper end of the screening and loading mechanism 1, and its up and down reciprocating vibration can guide the raw coal to flow to the screening and loading mechanism 1 in an orderly manner, ensuring that the raw coal enters the subsequent processing flow evenly. At the same time, the vibration process provides driving force for the raw coal dispersion and dust reduction mechanism 3 at the lower end. The raw coal dispersion and dust reduction mechanism 3 is driven to break up the raw coal to avoid raw coal accumulation, so that the dust suction equipment has more sufficient time to absorb dust. At the same time, the scraping and coal disturbing mechanism 4 is synchronously driven to rotate when the raw coal is dispersed. It not only continuously stirs the raw coal to prevent the raw coal from agglomerating and clogging, but also scrapes off the coal slag adhered to the surface of the raw coal diversion vibration mechanism 2, keeps the equipment surface clean, maintains the efficient operation of each mechanism, and provides a strong guarantee for the smooth progress of the whole process of raw coal screening and loading.

[0026] like Figure 4 and Figure 5 The screening loading mechanism 1 includes a dust removal box 101, a screening box 102 is fixedly connected to the lower surface of the dust removal box 101, a first servo motor 103 is fixedly connected to one side of the rear end outer wall of the screening box 102, an output end of the first servo motor 103 extends to the interior of the screening box 102 and is fixedly connected to a transmission rod 104, a cam 105 is fixedly connected to the outer wall in the middle of the transmission rod 104, a mounting ring 106 is fixedly connected to the inner wall of the screening box 102 near the middle, and both sides of the upper surface of the rear end of the mounting ring 106 are respectively fixedly connected to It is connected to a vibration spring 107, and the upper end of the interior of the screening box 102 is hingedly connected to a screening frame 108, and the rear end of the lower surface of the screening frame 108 is fixedly connected to a vibration seat 109. The cam 105 cooperates with the vibration seat 109 during rotation. The upper end of the vibration spring 107 is fixedly connected to the lower surface of the screening frame 108, and the inner wall of the screening frame 108 is fixedly connected to a screening net 110. The lower end of the screening box 102 is internally slidably connected to a collecting box 111, and the middle part of the upper surface of the dust removal box 101 is fixedly connected to a feed hopper 112.

[0027] like Figure 6 and Figure 7The raw coal drainage vibration mechanism 2 includes a second servo motor 201, an adjusting special-shaped ring 204 and a conical cover 216. The second servo motor 201 is fixedly connected to one side of the upper part of the outer wall of the front end of the dust removal box 101. The output end of the second servo motor 201 is fixedly connected to a driving gear 202. One side of the upper surface of the front end of the dust removal box 101 is rotatably connected to an intermediate gear seat 203. The driving gear 202 and the intermediate gear seat 203 are meshed with each other. The adjusting special-shaped ring 204 is rotatably connected to the edge of the upper surface of the dust removal box 101. The upper end of the adjusting special-shaped ring 204 is provided with an adjusting arc groove 205. The outer wall of the lower end of the adjusting special-shaped ring 204 is fixedly connected to an outer gear ring 206. The intermediate gear seat 203 is meshed with the outer gear ring 206, and a cross 207 is fixedly connected to the middle of the inner wall of the dust removal box 101. The edge of the upper surface of the cross 207 is rotatably connected to the assembly cover 208. The cone cover 216 is fixedly connected to the upper end of the assembly cover 208. The outer wall of the assembly cover 208 is fixedly connected to a plurality of lower connecting blocks 209. The upper surface of the lower connecting blocks 209 is fixedly connected to a connecting rod 210. The upper ends of the connecting rods 210 extend to the upper part of the dust removal box 101 and are fixedly connected to the upper connecting blocks 211. The ends of the upper connecting blocks 211 close to the adjusting special-shaped ring 204 are rotatably connected to the balls 212, and the balls 212 and the adjusting arc grooves 205 are mutually connected. In coordination, the lower end of the inner wall of the assembly cover 208 is fixedly connected with a plurality of L-shaped connecting plates 213, the plate bodies of the L-shaped connecting plates 213 all penetrate the cross 207 and are fixedly connected with a drainage bucket 214, the inner wall of the lower end of the drainage bucket 214 is fixedly connected with a drainage cover 215, the lower end of the drainage cover 215 extends to the interior of the screening box 102, and the drainage cover 215 is located at the upper end of the screening frame 108. Specifically, in the process of screening and removing impurities from the raw coal, the raw coal is first poured from the feed hopper 112 and enters the raw coal drainage vibration mechanism 2 in the dust removal box 101. When the raw coal drainage vibration mechanism 2 is working, the second servo motor 201 is started to drive the driving gear 202 to rotate, and the main The moving gear 202 is meshed with the intermediate gear seat 203, and the intermediate gear seat 203 is meshed with the outer gear ring 206 of the adjusting special-shaped ring 204, so that the adjusting special-shaped ring 204 rotates. During the rotation of the adjusting special-shaped ring 204, the adjusting arc groove 205 at its upper end cooperates with the ball 212 connected to the end of the upper block 211, driving the assembly cover 208 and the conical cover 216 fixed thereon to vibrate up and down. At the same time, the L-shaped connecting plate 213 on the inner wall of the assembly cover 208 drives the drainage bucket 214 and the drainage cover 215 to vibrate, guiding the raw coal to the top of the screening frame 108, and the vibration helps to loosen the raw coal, prevent caking and accumulation, and allow the raw coal to enter the subsequent screening link more evenly.

[0028] like Figure 8 , Fig. 9 , Fig.10 , Fig.11 and Fig.12The raw coal dispersion and dust reduction mechanism 3 includes a cross frame 301, which is fixedly connected to the middle part of the cross 207. Both sides of the front end of the lower surface of the cross frame 301 are fixedly connected with L-shaped connecting seats 302, and the front ends of the L-shaped connecting seats 302 are provided with a plurality of semi-arc teeth 305. The inner top surface of the front end of the conical cover 216 is fixedly connected with a support frame 306, and the inner wall of the lower end of the support frame 306 is rotatably connected with a first rotating rod 307. The outer walls on both sides of the first rotating rod 307 are fixedly connected with gear cylinders 316, and the gear cylinders 316 mesh with the semi-arc teeth 305 during the rising process. The outer wall of the middle part of the first rotating rod 307 is fixedly connected with a first bevel gear 308, and the middle part of the upper end of the support frame 306 is rotatably connected with a second rotating rod 309, wherein the second rotating rod 30 The upper and lower ends of 9 are both provided with a rotation support structure with the support frame 306, thereby ensuring the stability of the second rotating rod 309 during the rotation process. The lower end of the second rotating rod 309 passes through the cross frame 301 and is fixedly connected to the second bevel gear 310. The second bevel gear 310 is meshed with the first bevel gear 308. The outer wall of the upper end of the second rotating rod 309 is fixedly connected to the first large transmission wheel 311, and the middle part of the inner wall of the front end of the assembly cover 208 is fixedly connected to the adapter plate 312. The rear end of the upper surface of the adapter plate 312 is rotatably connected to the intermediate rod 313. The outer wall of the lower end of the intermediate rod 313 is fixedly connected to the first small transmission wheel 314. The outer walls of the first large transmission wheel 311 and the first small transmission wheel 314 are sleeved with a first transmission belt 315. The inner wall of the assembly cover 208 is fixedly connected to A plurality of positioning frames 317 are provided, and a positioning ring 318 is fixedly connected to one end of the upper surface of the positioning frame 317 near the middle of the assembly cover 208. The upper end of the positioning ring 318 is rotatably connected to an inner gear ring 319. A driven gear 320 is fixedly connected to the outer wall of the intermediate rod 313 near the lower end. The driven gear 320 and the inner gear ring 319 are meshed with each other. A plurality of connecting long plates 321 are fixedly connected to the lower end of the outer wall of the inner gear ring 319. A jacking frame 323 is fixedly connected to the upper surface of the connecting long plates 321. A plurality of mounting frames 324 are fixedly connected to the cover body of the conical cover 216. A top coal protrusion 325 is slidably connected to the interior of the mounting frame 324. A second return spring 326 is fixedly connected to the corner of the lower surface of the top coal protrusion 325. The lower surface of the second return spring 326 The top coal protrusion 325 is fixedly connected to the inner bottom surface of the mounting frame 324, and the middle part of the lower surface of the top coal protrusion 325 is fixedly connected with a triangular jacking block 327, and the lower end of the triangular jacking block 327 penetrates the mounting frame 324 and extends to the lower end of the mounting frame 324. During the rotation of the jacking frame 323, the triangular jacking block 327 cooperates with the triangular jacking block 327, and the triangular jacking block 327 drives the top coal protrusion 325 to move upward inside the mounting frame 324. A first dust suction pipe 332 is provided at the lower end of the dust removal box 101 near the inner wall, and a second dust suction pipe 333 is provided at the upper end of the top of the dust removal box 101. One side of the rear ends of the first dust suction pipe 332 and the second dust suction pipe 333 are both connected with a connecting pipe 334, and the connecting pipe 334 penetrates the dust removal box 101 and extends to the outside of the dust removal box 101.The first dust suction pipe 332 is located at the lower part of the cross 207, and the outer wall of the front end of the L-shaped connecting seat 302 is provided with a plurality of assembly grooves 303, and the interior of the assembly grooves 303 is fixedly connected with a plurality of first return springs 304, and the semi-arc teeth 305 slide inside the assembly grooves 303, and the outer wall of the rear end of the semi-arc teeth 305 is fixedly connected to the front end of the first return spring 304, and the first large transmission wheel 311 is located at the upper end of the cross frame 301, and the end of the connecting long plate 321 away from the inner gear ring 319 is fixedly connected with an annular frame 322, and the annular frame 322 is slidably connected to the inner wall of the assembly cover 208, and the inner top surface of the conical cover 216 is provided with a plurality of connecting shafts 328, and the outer wall of the middle part of the connecting shaft 328 is provided with a knocking plate 329. The end of the plate 329 close to the mounting frame 324 extends to the inside of the mounting frame 324, and the end of the upper surface of the knocking plate 329 away from the mounting frame 324 is fixedly connected to a knocking arc block 330, and the upper surface of the knocking arc block 330 contacts the lower surface of the conical cover 216, and the upper surface of the knocking arc block 331 is fixedly connected to the end of the upper surface of the knocking plate 329 close to the mounting frame 324. During the downward movement of the top coal protrusion 325, it fits with the upper surface of the lower pressure block 331. Specifically, when the conical cover 216 moves upward, the gear cylinder 316 on the top surface support frame 306 at its front end will rise accordingly, and the gear cylinder 316 will mesh with the semi-arc teeth 305 at the front end of the L-shaped connecting seat 302, driving the first rotating rod 307 to rotate, and the first bevel gear on the first rotating rod 307 The second bevel gear 310 on the second rotating rod 309 is meshed with the second bevel gear 310 on the second rotating rod 309 to rotate the second rotating rod 309, and the second rotating rod 309 drives the first large transmission wheel 311 at the upper end to rotate, and drives the first small transmission wheel 314 at the lower end of the intermediate rod 313 to rotate through the first transmission belt 315. The rotation of the intermediate rod 313 makes the driven gear 320 drive the inner gear ring 319 to rotate, and the connecting long plate 321 and the lifting frame 323 of the outer wall of the inner gear ring 319 rotate accordingly. During the rotation of the lifting frame 323, the triangular lifting block 327 on the cone cover 216 is matched to periodically lift the top coal protrusion 325 upward. When the top coal protrusion 325 moves upward, the raw coal is dispersed to avoid the accumulation of raw coal, and relative movement is generated between the raw coal particles, which is beneficial to the subsequent dust collection and Screening, at the same time, in the process of the conical cover 216 moving downward, due to the action of the first return spring 304, the semi-arc tooth 305 will move toward the inside of the assembly groove 303, so that the tooth cylinder 316 cannot rotate, thereby ensuring that the raw coal feeding process is more stable and not easy to be blocked. Among them, the shape of the semi-arc tooth 305 is an upper arc surface and a lower plane. In the process of the tooth cylinder 316 moving upward, it will contact the plane of the semi-arc tooth 305, and then cooperate with the tooth cylinder 316 to rotate the first rotating rod 307. In the process of the tooth cylinder 316 moving downward, it will contact the arc surface of the semi-arc tooth 305. The semi-arc tooth 305 will move toward the inside of the assembly groove 303, so that the tooth cylinder 316 cannot drive the first rotating rod 307 to rotate.At the same time, the second dust suction pipe 333 and the first dust suction pipe 332 are connected to the external dust suction equipment through the connecting pipe 334. In the process of the raw coal being lifted and dispersed, the raised dust is sucked, the dust suction effect is improved, and the dust impurity content in the raw coal is reduced. At the same time, a knocking plate 329 is provided on the connecting shaft 328. When the top coal protrusion 325 moves downward, it will fit with the lower pressing block 331 on the knocking plate 329, driving the knocking plate 329 to swing. The knocking arc block 330 at the end of the knocking plate 329 knocks the conical cover 216, so that impurities such as coal slag attached to the inner wall of the conical cover 216 are shaken off, further assisting in impurity removal. At the same time, the ash scraping and coal disturbing mechanism 4 is in the raw coal dispersion and dust reduction mechanism 3 During operation, the second small transmission wheel 404 at the upper end of the middle rod 313 drives the second large transmission wheel 403 on the outer wall of the cylinder 402 to rotate through the second transmission belt 405, so that the cylinder 402 and the umbrella cover 406 fixed thereon rotate, and the scraper frame 407 on the umbrella cover 406 rotates accordingly. On the one hand, the scraper frame 407 moves the raw coal to make it more evenly distributed on the conical cover 216, further promoting the dispersion of the raw coal. On the other hand, the scraper frame 407 scrapes off the coal slag attached to the surface of the conical cover 216 in the raw coal drainage vibration mechanism 2 to prevent the accumulation of coal slag from affecting the flow of raw coal and subsequent processing. The scraped coal slag can be sucked away during the dust collection process.

[0029] like Fig.13 and Fig.14The scraping and coal disturbing mechanism 4 includes a rotating seat 401, which is rotatably connected to the middle part of the inner top surface of the conical cover 216, and the inner wall of the rotating seat 401 is provided with a cylinder 402. The lower end of the outer wall of the cylinder 402 is fixedly connected to the second large transmission wheel 403, and the outer wall of the upper end of the intermediate rod 313 is fixedly connected to the second small transmission wheel 404. The outer walls of the second large transmission wheel 403 and the second small transmission wheel 404 are sleeved with a second transmission belt 405. The upper end of the cylinder 402 extends to the upper part of the conical cover 216 and is fixedly connected to an umbrella cover 406. The lower surface of the umbrella cover 406 is slidably connected to the middle part of the upper surface of the conical cover 216, and the upper surface of the umbrella cover 406 is fixedly connected to a plurality of scraping frames 407. Specifically, the distribution positions of the plurality of scraping frames 407 are The devices are all arranged in the middle of multiple jacking frames 323, so that the top coal protrusion 325 will not get stuck with the scraper frame 407 during the upward movement, thereby ensuring the normal operation of the equipment. Finally, the raw coal that has been pre-treated by drainage, dispersion, dust reduction, and coal disturbance enters the interior of the screening box 102, and the first servo motor 103 is started to drive the transmission rod 104 and the cam 105 to rotate. The cam 105 cooperates with the vibration seat 109 on the lower surface of the screening frame 108, and with the assistance of the vibration spring 107, the screening frame 108 vibrates up and down, and the screening net 110 on the inner wall of the screening frame 108 screens the raw coal. The raw coal fragments that do not meet the particle size requirements fall into the interior of the collecting box 111 through the screening net 110, and the large particles of raw coal that pass through the screening will be shaken by the vibration of the screening frame 108. The raw coal is transmitted to the outside of the screening box 102, and the staff collects and processes the screened raw coal. The whole device cooperates with various mechanisms to achieve efficient screening and impurity removal of the raw coal. Among them, by making the raw coal diversion vibration mechanism 2 vibrate up and down, firstly, the second servo motor 201 drives the driving gear 202, the intermediate gear seat 203, the adjustment special-shaped ring 204, etc. to cooperate in sequence, so that the assembly cover 208 and the cone cover 216 vibrate up and down reciprocatingly, thereby ensuring that the raw coal flows evenly and loosely to the top of the screening frame 108, effectively reducing the accumulation of raw coal lumps and improving the efficiency of subsequent screening. Secondly, during the upward movement of the raw coal diversion vibration mechanism 2, the lifting frame 323 can be rotated and the top coal protrusion 325 can be periodically lifted. When the raw coal is lifted by the top coal protrusion 325 During the dispersion process, the first dust suction pipe 332 and the second dust suction pipe 333 absorb the raised dust to improve the dust suction effect. At the same time, the top coal protrusion 325 also slows down the movement speed of the raw coal, increases the dust suction time, and effectively improves the dust suction efficiency. At the same time, the top coal protrusion 325 disperses the raw coal when moving upward, reduces the accumulation of raw coal, and is beneficial to subsequent dust suction and screening. Third, when the top coal protrusion 325 moves downward, the knocking arc block 330 at the end of the knocking plate 329 knocks the conical cover 216, so that impurities such as coal slag attached to the inner wall of the conical cover 216 are shaken off, further assisting in impurity removal. Fourth, in the process of the raw coal dispersing and dust reduction mechanism 3 periodically lifting the coal blocks, it will also drive the ash scraping and coal disturbing mechanism 4 to rotate synchronously, so that the ash scraping frame 407 can move the raw coal at will.The raw coal is distributed more evenly on the upper part of the conical cover 216, which further helps to disperse the raw coal. At the same time, the scraper frame 407 can also scrape off the coal slag adhered to the surface of the conical cover 216, thereby cleaning the conical cover 216. Part of the coal ash produced by scraping can be sucked away during the dust collection process, realizing linkage cleaning and ensuring smooth raw coal processing throughout the process.

[0030] Specifically, the working principle of the raw coal screening and impurity removal device is as follows: in the process of screening and impurity removal of raw coal, the raw coal is first poured from the feed hopper 112 and enters the raw coal drainage vibration mechanism 2 in the dust removal box 101. When the raw coal drainage vibration mechanism 2 is working, the second servo motor 201 is started to drive the driving gear 202 to rotate, and the driving gear 202 is meshed with the intermediate gear seat 203. The intermediate gear seat 203 is meshed with the outer gear ring 206 of the adjusting special-shaped ring 204, so that the adjusting special-shaped ring 204 rotates. During the rotation of the adjusting special-shaped ring 204, the adjusting arc groove 205 at its upper end cooperates with the ball 212 connected to the end of the upper block 211, driving the assembly cover 208 and the conical cover 216 fixed thereon to vibrate up and down. At the same time, the assembly cover 208 and the conical cover 216 fixed thereon are driven to vibrate reciprocatingly. The L-shaped connecting plate 213 on the inner wall of the matching cover 208 drives the drainage bucket 214 and the drainage cover 215 to vibrate, and guides the raw coal to the top of the screening frame 108. The vibration helps to loosen the raw coal and prevent agglomeration and accumulation, so that the raw coal can enter the subsequent screening link more evenly. When the conical cover 216 moves upward, the gear cylinder 316 on the top surface support frame 306 at its front end will rise accordingly. The gear cylinder 316 meshes with the semi-arc teeth 305 at the front end of the L-shaped connecting seat 302, driving the first rotating rod 307 to rotate. The first bevel gear 308 on the first rotating rod 307 meshes with the second bevel gear 310 on the second rotating rod 309, so that the second rotating rod 309 rotates. The second rotating rod 309 drives the first large transmission wheel 311 at the upper end to rotate, and the first transmission belt 315 drives The first small transmission wheel 314 at the lower end of the middle rod 313 rotates, and the rotation of the middle rod 313 causes the driven gear 320 to drive the inner ring gear 319 to rotate, and the connecting long plate 321 and the lifting frame 323 of the outer wall of the inner ring gear 319 rotate accordingly. During the rotation of the lifting frame 323, the triangular lifting block 327 on the conical cover 216 cooperates to periodically lift the top coal protrusion 325 upward. When the top coal protrusion 325 moves upward, the raw coal is dispersed to avoid raw coal accumulation, and relative movement is generated between the raw coal particles, which is beneficial to subsequent dust collection and screening. At the same time, during the downward movement of the conical cover 216, the semi-arc tooth 305 will move toward the inside of the assembly groove 303 under the action of the first return spring 304, so that the gear cylinder 316 is free The method of rotation ensures that the raw coal feeding process is smoother and less prone to blockage. At the same time, the second dust suction pipe 333 and the first dust suction pipe 332 are connected to the external dust suction equipment through the connecting pipe 334. In the process of the raw coal being lifted and dispersed, the raised dust is sucked to improve the dust suction effect and reduce the dust and impurity content in the raw coal. At the same time, a knocking plate 329 is provided on the connecting shaft 328. When the top coal protrusion 325 moves downward, it will fit with the lower pressing block 331 on the knocking plate 329, driving the knocking plate 329 to swing. The knocking arc block 330 at the end of the knocking plate 329 knocks the conical cover 216, so that impurities such as coal slag attached to the inner wall of the conical cover 216 are shaken off, further assisting in impurity removal. At the same time, the ash scraping and coal disturbing mechanism 4 runs synchronously when the raw coal dispersing and dust reduction mechanism 3 is working.The second small transmission wheel 404 at the upper end of the middle rod 313 drives the second large transmission wheel 403 on the outer wall of the cylinder 402 to rotate through the second transmission belt 405, so that the cylinder 402 and the umbrella cover 406 fixed thereon rotate, and the scraper frame 407 on the umbrella cover 406 rotates accordingly. On the one hand, the scraper frame 407 moves the raw coal to make it more evenly distributed on the conical cover 216, further promoting the dispersion of the raw coal. On the other hand, the scraper frame 407 scrapes off the coal slag attached to the surface of the conical cover 216 in the raw coal drainage vibration mechanism 2 to prevent the accumulation of coal slag from affecting the flow of raw coal and subsequent processing. The scraped coal slag can be sucked away during the dust collection process. At the same time, the distribution positions of the multiple scraper frames 407 are all set in the middle of the multiple lifting frames 323, so that the top coal protrusion 325 will not contact the scraper frame 407 during the upward movement. 7 is stuck, ensuring the normal operation of the equipment. Finally, the raw coal that has been pre-treated by drainage, dispersion, dust reduction, and coal disturbance enters the interior of the screening box 102. The first servo motor 103 is started, driving the transmission rod 104 and the cam 105 to rotate. The cam 105 cooperates with the vibration seat 109 on the lower surface of the screening frame 108. With the assistance of the vibration spring 107, the screening frame 108 vibrates up and down. The screening net 110 on the inner wall of the screening frame 108 screens the raw coal. The raw coal slag that does not meet the particle size requirements falls into the interior of the collection box 111 through the screening net 110. The large particles of raw coal that pass through the screening will be transmitted to the outside of the screening box 102 with the vibration of the screening frame 108. The staff will then collect and process the screened raw coal. The entire device works in coordination with various mechanisms to achieve efficient screening and impurity removal of raw coal.

[0031] It should be noted that the models and specifications of the first servo motor 103 and the second servo motor 201 need to be selected and determined according to the actual specifications of the device, and the specific selection calculation method adopts the existing technology in the field, so it will not be repeated in detail.

[0032] The power supply and principle of the first servo motor 103 and the second servo motor 201 are clear to those skilled in the art and will not be described in detail here.

[0033] The above are only embodiments of the present application and are not intended to limit the scope of protection of the present application. For those skilled in the art, the present application may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings.

[0034] The above are only specific implementations of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A raw coal screening and impurity removal device, characterized in that: include: Screening and loading mechanism (1); A raw coal drainage vibration mechanism (2), wherein the raw coal drainage vibration mechanism (2) is located at the upper end of the screening and loading mechanism (1); A raw coal dispersing and dust reduction mechanism (3), the raw coal dispersing and dust reduction mechanism (3) being located inside the upper end of the screening and loading mechanism (1), the raw coal dispersing and dust reduction mechanism (3) being located at the lower end of the raw coal drainage and vibration mechanism (2), the raw coal drainage and vibration mechanism (2) driving the raw coal dispersing and dust reduction mechanism (3) in the process of reciprocating up and down vibration, so that the raw coal dispersing and dust reduction mechanism (3) disperses the raw coal and increases the dust collection time; The ash scraping and coal disturbing mechanism (4) is located at the upper end of the raw coal dispersing and dust reducing mechanism (3). During the process of dispersing the raw coal, the raw coal dispersing and dust reducing mechanism (3) synchronously drives the ash scraping and coal disturbing mechanism (4) to rotate, so that the ash scraping and coal disturbing mechanism (4) can move the raw coal and at the same time scrape off the coal slag attached to the surface of the raw coal drainage vibration mechanism (2).

2. A raw coal screening and impurity removal device according to claim 1, characterized in that: The screening loading mechanism (1) comprises a dust removal box (101), a screening box (102) being fixedly connected to the lower surface of the dust removal box (101), a first servo motor (103) being fixedly connected to one side of the rear end outer wall of the screening box (102), an output end of the first servo motor (103) extending into the interior of the screening box (102) and being fixedly connected to a transmission rod (104), a cam (105) being fixedly connected to the outer wall in the middle of the transmission rod (104), and a mounting ring (105) being fixedly connected to the inner wall near the middle of the screening box (102). 6), vibration springs (107) are fixedly connected to both sides of the upper surface of the rear end of the mounting ring (106), a screening frame (108) is hingedly connected to the upper end of the interior of the screening box (102), a vibration seat (109) is fixedly connected to the rear end of the lower surface of the screening frame (108), the cam (105) cooperates with the vibration seat (109) during the rotation process, the upper end of the vibration spring (107) is fixedly connected to the lower surface of the screening frame (108), and the inner wall of the screening frame (108) is fixedly connected to the screening net (110).

3. A raw coal screening and impurity removal device according to claim 2, characterized in that: A collecting box (111) is slidably connected to the interior of the lower end of the screening box (102), and a feeding hopper (112) is fixedly connected to the middle of the upper surface of the dust removal box (101).

4. A raw coal screening and impurity removal device according to claim 2, characterized in that: The raw coal drainage vibration mechanism (2) comprises a second servo motor (201), an adjustment special-shaped ring (204) and a conical cover (216); the second servo motor (201) is fixedly connected to one side of the upper part of the front end outer wall of the dust removal box (101); the output end of the second servo motor (201) is fixedly connected to a driving gear (202); one side of the front end upper surface of the dust removal box (101) is rotatably connected to an intermediate gear seat (203); the driving gear (202) and the intermediate gear seat (203) are meshed with each other; the adjustment special-shaped ring (204) is rotatably connected to the edge of the upper surface of the dust removal box (101); an adjustment arc groove (205) is provided at the upper end of the adjustment special-shaped ring (204); an outer gear ring (206) is fixedly connected to the outer wall of the lower end of the adjustment special-shaped ring (204); the intermediate gear The seat (203) and the outer gear ring (206) are meshed with each other, a cross (207) is fixedly connected to the middle of the inner wall of the dust removal box (101), an assembly cover (208) is rotatably connected to the edge of the upper surface of the cross (207), the conical cover (216) is fixedly connected to the upper end of the assembly cover (208), the outer wall of the assembly cover (208) is fixedly connected to a plurality of lower connection blocks (209), the upper surface of the lower connection blocks (209) is fixedly connected to a connecting rod (210), the upper end of the connecting rod (210) extends to the upper part of the dust removal box (101) and is fixedly connected to an upper connection block (211), and one end of the upper connection block (211) close to the adjustment special-shaped ring (204) is rotatably connected to a ball (212), and the ball (212) cooperates with the adjustment arc groove (205); The lower end of the inner wall of the assembly cover (208) is fixedly connected to a plurality of L-shaped connecting plates (213); the plate bodies of the L-shaped connecting plates (213) pass through the cross (207) and are fixedly connected to a drainage hopper (214); the inner wall at the lower end of the drainage hopper (214) is fixedly connected to a drainage cover (215); the lower end of the drainage cover (215) extends to the interior of the screening box (102); and the drainage cover (215) is located at the upper end of the screening frame (108).

5. A raw coal screening and impurity removal device according to claim 4, characterized in that: The raw coal dispersing and dust reduction mechanism (3) comprises a cross frame (301), the cross frame (301) is fixedly connected to the middle part of the cross (207), both sides of the front end of the lower surface of the cross frame (301) are fixedly connected to L-shaped connection seats (302), the front ends of the L-shaped connection seats (302) are each provided with a plurality of semi-arc teeth (305), the inner top surface of the front end of the conical cover (216) is fixedly connected to a support frame (306), the inner wall of the lower end of the support frame (306) is rotatably connected to a first rotating rod (307), and the first rotating rod (307) is fixedly connected to the inner top surface of the front end of the conical cover (216). 07) The outer walls on both sides are fixedly connected with a gear cylinder (316), and the gear cylinder (316) meshes with the semi-arc teeth (305) during the rising process, and the outer wall in the middle of the first rotating rod (307) is fixedly connected with a first bevel gear (308), and the middle part of the upper end of the support frame (306) is rotatably connected with a second rotating rod (309), and the lower end of the second rotating rod (309) passes through the cross frame (301) and is fixedly connected with a second bevel gear (310), and the second bevel gear (310) and the first bevel gear (308) are meshed with each other; The outer wall of the upper end of the second rotating rod (309) is fixedly connected to a first large transmission wheel (311); the middle part of the inner wall of the front end of the assembly cover (208) is fixedly connected to an adapter plate (312); the rear end of the upper surface of the adapter plate (312) is rotatably connected to an intermediate rod (313); the outer wall of the lower end of the intermediate rod (313) is fixedly connected to a first small transmission wheel (314); and the outer walls of the first large transmission wheel (311) and the first small transmission wheel (314) are sleeved with a first transmission belt (315); The inner wall of the assembly cover (208) is fixedly connected to a plurality of positioning frames (317), and one end of the upper surface of the positioning frame (317) close to the middle of the assembly cover (208) is fixedly connected to a positioning ring (318), and the upper end of the positioning ring (318) is rotatably connected to an inner gear ring (319), and the outer wall of the intermediate rod (313) close to the lower end is fixedly connected to a driven gear (320), and the driven gear (320) and the inner gear ring (319) are meshed with each other, and the inner gear ring (319) is rotatably connected to the inner gear ring (319). 19) The lower end of the outer wall is fixedly connected to a plurality of connecting long plates (321), the upper surface of the connecting long plates (321) is fixedly connected to a lifting frame (323), the cover body of the conical cover (216) is fixedly connected to a plurality of mounting frames (324), the interior of the mounting frames (324) is slidably connected to a top coal protrusion (325), the corners of the lower surface of the top coal protrusion (325) are fixedly connected to a second return spring (326), the lower surface of the second return spring (326) The top coal projection (325) is fixedly connected to the inner bottom surface of the installation frame (324); the middle part of the lower surface of the top coal projection (325) is fixedly connected to a triangular lifting block (327); the lower end of the triangular lifting block (327) penetrates the installation frame (324) and extends to the lower end of the installation frame (324); the lifting frame (323) cooperates with the triangular lifting block (327) during rotation, and the triangular lifting block (327) drives the top coal projection (325) to move upward inside the installation frame (324); the A first dust suction pipe (332) is arranged at the lower end of the dust removal box (101) close to the inner wall, and a second dust suction pipe (333) is arranged at the upper end of the top of the dust removal box (101). A connecting pipe (334) is connected to one side of the rear ends of the first dust suction pipe (332) and the second dust suction pipe (333). The connecting pipe (334) passes through the dust removal box (101) and extends to the outside of the dust removal box (101). The first dust suction pipe (332) is located at the lower part of the cross (207).

6. A raw coal screening and impurity removal device according to claim 5, characterized in that: The outer wall of the front end of the L-shaped connection seat (302) is provided with a plurality of assembly grooves (303), the interior of the assembly grooves (303) is fixedly connected with a plurality of first return springs (304), the semi-arc teeth (305) slide inside the assembly grooves (303), and the outer wall of the rear end of the semi-arc teeth (305) is fixedly connected to the front end of the first return spring (304).

7. The raw coal screening and impurity removal device according to claim 5, characterized in that: The first large transmission wheel (311) is located at the upper end of the cross frame (301).

8. The raw coal screening and impurity removal device according to claim 5, characterized in that: One end of the connecting long plate (321) away from the inner gear ring (319) is fixedly connected to an annular frame (322), and the annular frame (322) is slidably connected to the inner wall of the assembly cover (208).

9. The raw coal screening and impurity removal device according to claim 5, characterized in that: The inner top surface of the conical cover (216) is provided with a plurality of connecting shafts (328), and the outer walls of the middle parts of the connecting shafts (328) are provided with knocking plates (329), and the ends of the knocking plates (329) close to the mounting frame (324) extend into the interior of the mounting frame (324), and the ends of the upper surfaces of the knocking plates (329) away from the mounting frame (324) are fixedly connected with knocking arc blocks (330), and the upper surfaces of the knocking arc blocks (330) are in contact with the lower surface of the conical cover (216), and the ends of the upper surfaces of the knocking plates (329) close to the mounting frame (324) are fixedly connected with a lower pressing block (331), and the top coal protrusion (325) is in contact with the upper surface of the lower pressing block (331) during the process of moving downward.

10. The raw coal screening and impurity removal device according to claim 5, characterized in that: The ash scraping and coal disturbing mechanism (4) comprises a rotating seat (401), the rotating seat (401) is rotatably connected to the middle part of the inner top surface of the conical cover (216), the inner wall of the rotating seat (401) is provided with a cylinder (402), the lower end of the outer wall of the cylinder (402) is fixedly connected to a second large transmission wheel (403), the outer wall of the upper end of the intermediate rod (313) is fixedly connected to a second small transmission wheel (404), the outer walls of the second large transmission wheel (403) and the second small transmission wheel (404) are sleeved with a second transmission belt (405), the upper end of the cylinder (402) extends to the upper part of the conical cover (216) and is fixedly connected to an umbrella cover (406), the lower surface of the umbrella cover (406) is slidably connected to the middle part of the upper surface of the conical cover (216), and the upper surface of the umbrella cover (406) is fixedly connected to a plurality of ash scraping frames (407).

Images