X-ray coal sorting machine and coal sorting method

Abstract

The present application relates to the field of sorting equipment, disclose a kind of X-ray coal sorting machine and coal sorting method, wherein sorting machine includes workbench and sorting mechanism being arranged on workbench, the workbench is provided with the conveying belt for conveying raw materials and the control assembly for driving the conveying belt movement, conveying belt includes a plurality of sequentially rotatingly connected support components, workbench is fixedly installed with the adjusting assembly being movably attached to part of support components;When control assembly moves with support component and support component contacts with adjusting assembly, corresponding support component can be deflected to push raw materials along the direction of movement and form layering.The raw materials on the conveying belt can be sequentially divided into multiple layers with intervals by the cooperation between control assembly, support component and adjusting assembly, so that the identification of sorting mechanism is more accurate, and the sorting effect of gangue is ensured by avoiding a large number of raw materials stacking.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of sorting equipment, in particular to an X-ray coal sorting machine and a coal sorting method. BACKGROUND

[0002] The common production mode of coal mines at present is to transport the raw coal mixed with gangue and soil from the mine to the ground, and then carry out related screening operations on the ground. The mixed raw materials are moved by using a conveying belt system, the coal and gangue are screened by an X-ray source, and the sorting is completed by blowing away the gangue through a blowing system.

[0003] For example, Chinese Patent Publication No. CN115532609A discloses a kind of raw coal and coal gangue fast sorting equipment and use method, the raw coal and coal gangue fast sorting equipment includes bottom plate, the top of bottom plate is fixedly installed with first conveying belt, the top of bottom plate is fixedly installed with two first support plates, the opposite surface of two first support plates is fixedly installed with screening mechanism, the right side of screening mechanism is fixedly installed with filter mechanism, the top of bottom plate is fixedly installed with heating mechanism, the top of bottom plate is fixedly installed with infrared scanning mechanism, the top of bottom plate is fixedly installed with sorting mechanism. The invention makes the screening equipment have the function of screening of multiple types, can effectively screen two kinds of raw coal and coal gangue and coal ash of different sizes, and screen out coal ash after screening.

[0004] The application completes sorting by moving the raw materials through the traditional conveying belt, but the raw materials are stacked together with overlap after being put into the conveying belt, so that the subsequent X-ray source cannot effectively identify the overlapped raw materials, and thus cannot guarantee the sorting effect of coal and gangue, which has certain use limitations.

[0005] Therefore, it is necessary to provide an X-ray coal sorting machine and a coal sorting method to solve the above technical problems. SUMMARY

[0006] The present application aims to provide an X-ray coal sorting machine and a coal sorting method to solve the problems raised in the background.

[0007] To achieve the above-mentioned purpose, a sorting machine and a sorting method are designed, which can divide the raw materials into multiple layers along the moving direction for easy identification.

[0008] Based on the above idea, the present application provides the following technical scheme: an X-ray coal sorting machine, comprising a workbench and a sorting mechanism arranged on the workbench, the workbench is provided with a conveying belt for conveying raw materials and a control assembly for driving the conveying belt to move, the conveying belt comprises a plurality of support assemblies connected in sequence, and the workbench is fixedly provided with an adjusting assembly movably combined with part of the support assemblies; when the control assembly drives the support assemblies to move and the support assemblies contact the adjusting assembly, the corresponding support assemblies can be deflected to push the raw materials in the moving direction to form layers.

[0009] As a further scheme of the present application: the support assembly comprises a base, a support rod is rotatably installed on the surface of the base, a bottom plate is fixedly installed on the outer surface of the support rod, a torsional spring is sleeved on the outer surface of the support rod, and the bottom plate can be kept in a combined state with the base under the action of the torsional spring; a guide column movably combined with the adjusting assembly is fixedly installed on the surface of the base, and the bottom plate can be driven to rotate based on the support rod when the guide column contacts the adjusting assembly and moves along the adjusting assembly; a connecting piece is rotatably installed between the two adjacent bases, and the plurality of bases are jointly formed into the conveying belt under the action of the connecting piece.

[0010] As a further scheme of the present application: a spacing is arranged between the two adjacent bottom plates, and the length dimension of the bottom plate in the raw material moving direction is greater than the length dimension of the base in the raw material moving direction.

[0011] As a further scheme of the present application: the control assembly comprises two rollers for driving the conveying belt to move, and the end of one of the rollers is fixedly provided with a motor fixedly connected with the workbench.

[0012] As a further scheme of the present application: the adjusting assembly comprises a vertical plate fixedly connected with the workbench and corresponding to the position of the guide column, and a plurality of first grooves with equal spacing are formed in the length direction of the top of the vertical plate.

[0013] As a further scheme of the present application: the first grooves are designed in a whole U shape, and the length dimension of the first grooves in the raw material moving direction is greater than or equal to the length dimension of the bottom plate in the raw material moving direction, so that one of the two adjacent bottom plates can be turned over under the action of the adjusting assembly.

[0014] As a further scheme of the present application: a moving assembly extending out of the base is slidably installed through the surface of the bottom plate, and when the moving assembly moves with the bottom plate and contacts the outer surface of the roller, the moving assembly can further disperse the raw materials in the front and back directions.

[0015] As a further scheme of the present application: the moving assembly comprises a fin slidably installed with the bottom plate, a top rod extending out of the bottom of the base is fixedly installed on the surface of the fin, and the number of fins is a plurality and all are fixedly connected with the top rod.

[0016] As a further scheme of the present application: the sorting mechanism includes an X-ray source located on one side above the conveying belt and a blowing system corresponding to the raw material discharging position, and the X-ray source is electrically connected with the blowing system.

[0017] The present application also provides the following technical scheme: a coal sorting method, comprising the following steps:

[0018] S1, the raw material is dropped from one side of the conveying belt so that the raw material falls on the partial support assembly;

[0019] S2, the control assembly is started to drive the raw material to move to the other side along the conveying belt, and when the support assembly holding the raw material contacts with the adjusting assembly, the corresponding support assembly can be turned over to sequentially divide the raw material into multiple layers;

[0020] S3, the layered raw material is identified by the sorting mechanism, and the coal and gangue can be sorted when the raw material slides off the support assembly and is affected by the sorting mechanism again.

[0021] Compared with the prior art, the present application has the beneficial effects that: through the cooperation between the control assembly, the support assembly and the adjusting assembly, the raw material on the conveying belt can be sequentially divided into multiple layers with intervals, so that the identification of the sorting mechanism is more accurate, and the sorting effect of the gangue is ensured by avoiding the stacking of a large amount of raw material. The overturning of the support assembly also has the effect of throwing the raw material, so that the raw material can be more dispersed, further ensuring the accurate identification of the support assembly, and the overall practicality is higher. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further described below in combination with the drawings and embodiments:

[0023] Figure 1 It is a perspective view of the overall structure of the present application;

[0024] Figure 2 It is a schematic view of the roller shaft and conveying belt structure of the present application;

[0025] Figure 3 It is Figure 2 It is an enlarged view of structure A in the middle;

[0026] Figure 4 It is a schematic view of the base and bottom plate structure of the present application;

[0027] Figure 5 It is a schematic view of the bottom plate and moving assembly structure of the present application;

[0028] Figure 6 It is a schematic view of the fin and top rod structure of the present application;

[0029] Figure 7 It is a schematic view of the top rod and roller shaft structure of the present application;

[0030] Figure 8 Figure is a schematic diagram of the base plate and strut structure of the present application;

[0031] Figure 9 Figure is a schematic diagram of the horizontal plate and vertical plate structure of the present application;

[0032] Figure 10 Figure is a schematic diagram of the strut and spring structure of the present application.

[0033] In the figure: 1, workbench; 2, roller shaft; 3, support assembly; 4, adjusting assembly; 5, X-ray source; 6, air blowing system; 7, moving assembly; 301, base; 302, base plate; 303, guide column; 304, strut; 305, connecting piece; 306, avoiding hole; 307, spring; 401, vertical plate; 402, first groove; 403, horizontal plate; 404, second groove; 405, third groove; 701, fin; 702, top rod. DETAILED DESCRIPTION

[0034] Example One:

[0035] Referring to Figures 1 to 2 , the present application provides an X-ray coal sorting machine, mainly used for avoiding the influence of the stacking of raw materials on sorting. The sorting machine comprises a workbench 1, a conveying belt for conveying raw materials and a control assembly for driving the conveying belt to move are arranged on the workbench 1, and a sorting mechanism corresponding to the position of the conveying belt is arranged on the workbench 1. The conveying belt comprises a plurality of support assemblies 3 connected in sequence, and the workbench 1 is fixedly provided with adjusting assemblies 4 movably attached to part of the support assemblies 3; when the control assembly drives all the support assemblies 3 to convey raw materials, if the support assemblies 3 contact the adjusting assemblies 4, the support assemblies 3 can push the raw materials one grid position along the moving direction of the raw materials, thereby avoiding the influence of the stacking of the raw materials on the conveying belt on the operation of the sorting mechanism.

[0036] In this embodiment, one grid position pushed by the raw materials is equivalent to the width dimension of the support assembly 3 in the left-right direction, and when the raw materials move with the support assemblies 3 and sequentially contact the adjusting assemblies 4, the raw materials can be sequentially spaced apart and then subjected to the action of the sorting mechanism. At the same time, the sorting mechanism comprises an X-ray source 5 located above the conveying belt and an air blowing system 6 located at the lower left side of the conveying belt, the X-ray source 5 is used for irradiating the layered raw materials to select gangue in the raw materials, and the air blowing system 6 is used for directing the gangue in the raw materials. The X-ray source 5 and the air blowing system 6 are electrically connected to ensure signal transmission, which is a mature technology and will not be described in detail here.

[0037] Referring to Figures 1 to 4In the embodiment, preferably: the support assembly 3 comprises a base 301, the surface of the base 301 is rotatably installed with a support rod 304, the outer surface of the support rod 304 is fixedly installed with a bottom plate 302, and meanwhile the outer surface of the support rod 304 is sleeved with a torsion spring, and under the action of the torsion spring, the bottom plate 302 can keep a state of being attached to the base 301; the front surface of the base 301 is fixedly installed with a guide column 303 which is movably attached to the adjusting assembly 4, and when the guide column 303 contacts with the adjusting assembly 4 and moves along the adjusting assembly 4, the guide column 303 can drive the bottom plate 302 to rotate based on the support rod 304. Adjacent two bases 301 are jointly rotatably installed with a connecting piece 305, and under the action of the connecting piece 305, the bases 301 form a complete annular structure, which is supported and driven to move by the control assembly.

[0038] In the above structure, a space can be arranged between adjacent two bottom plates 302, so that small raw materials can flow through the space (a receiving box for receiving small raw materials is fixedly installed inside the workbench 1 and inside the transmission belt, which is not shown in the figure). Meanwhile, the length dimension of the bottom plate 302 in the left-right direction can be increased according to actual needs, and the length dimension of the base 301 in the left-right direction can be correspondingly reduced, so that the small raw materials falling down will not accumulate on the base 301.

[0039] Further, the control assembly comprises two roller shafts 2 for driving the transmission belt to move, and the end of one of the roller shafts 2 is fixedly installed with a motor (not shown in the figure) which is fixedly connected with the workbench 1, the motor is started to drive the roller shaft 2 to rotate, thereby realizing the movement of the transmission belt, and thereby realizing the contact between the guide column 303 and the adjusting assembly 4.

[0040] Further, the adjusting assembly 4 comprises a vertical plate 401 which is fixedly connected with the workbench 1, the vertical plate 401 is positionally corresponding to the guide column 303 in the up-down direction, the top of the vertical plate 401 is provided with a plurality of first grooves 402 which are equally spaced in the length direction, the bottom surface of the first grooves 402 is corresponding to the lowermost side of the guide column 303, and the length dimension of the first grooves 402 in the left-right direction is greater than or equal to the length dimension of the bottom plate 302 in the left-right direction, so that adjacent two bottom plates 302 will not be turned over at the same time under the action of the adjusting assembly 4, and a state that the first and third bottom plates 302 are turned over while the second bottom plate 302 is not turned over is formed, so that the raw materials passing through the vertical plate 401 can be sequentially layered. The shape of the first grooves 402 is overall U-shaped, so that the guide column 303 has a lifting process when passing through the vertical plate 401 and the first grooves 402.

[0041] In the above structure, the raw materials which are sequentially layered will be irradiated by the X-ray source 5 when moving, and the gangue will be selected therefrom, and finally blown out by the blowing system 6. Meanwhile, two warehouses can also be correspondingly arranged at the lower left side of the workbench 1, and are respectively used for receiving coal and gangue, and the warehouse for receiving gangue is located at the left side of the other warehouse.

[0042] In use, the raw materials are dropped from above the right roller shaft 2 onto the conveying belt, and part of the raw materials with small sizes are dropped through the gap between the two bottom plates 302 into the receiving box. The motor is started to move the raw materials along with the bottom plates 302 to the left through the roller shaft 2. When the guide column 303 contacts the vertical plate 401, the bottom plate 302 is rotated counterclockwise based on the support rod 304 under the action of the vertical plate 401, and the raw materials on the bottom plate 302 are pushed to the left by one grid position. Then, the guide column 303 and the bottom plate 302 can be automatically reset under the action of the torsional spring and the first groove 402. With the continuous movement of the roller shaft 2 to drive the conveying belt, the bottom plate 302 next to the bottom plate 302 is also flipped, and finally the raw materials on the conveying belt are divided into multiple layers (each layer is a strip in the front-back direction) and are identified by the X-ray source 5. The identified raw materials are dropped from the left side of the conveying belt and are sorted by the air blowing system 6.

[0043] It should be noted that the counterclockwise rotation of the bottom plate 302 based on the support rod 304 in the embodiment is based on the movement of the raw materials from right to left. When the movement direction of the raw materials is reversed, the bottom plate 302 is rotated clockwise based on the support rod 304.

[0044] In summary, through the cooperation of the first groove 402, the guide column 303, the bottom plate 302, and the base 301, the raw materials on the conveying belt can be sequentially divided into multiple layers with intervals, so that the identification of the X-ray source 5 is more accurate, and the large amount of raw materials is avoided to be stacked, thereby ensuring the sorting effect of the gangue. The flipping of the bottom plate 302 also has a throwing effect on the raw materials, so that the raw materials can be more dispersed, further ensuring the accurate identification of the X-ray source 5, and the overall practicability is higher.

[0045] Embodiment Two:

[0046] Please refer to Figures 1 to 5 On the basis of embodiment one, in order to further ensure the accurate identification of the X-ray source 5, the surface of the bottom plate 302 is slidably installed with a moving assembly 7 extending out of the base 301 from bottom to top. When the moving assembly 7 moves to contact the outer surface of the roller shaft 2 along with the bottom plate 302, it can be stretched out from the surface of the bottom plate 302 under the reaction of the outer surface of the roller shaft 2, and finally the raw materials layered left and right are further dispersed in the front-back direction.

[0047] Please refer to Figures 1 to 7In the embodiment, preferably, the moving assembly 7 comprises a fin 701 in sliding installation with the bottom plate 302, the bottom of the fin 701 is fixedly installed with a top rod 702 extending from the bottom of the base 301, when the bottom of the top rod 702 is in contact with the outer surface of the roller shaft 2, the fin 701 can be driven to rise along the bottom plate 302, when the bottom of the top rod 702 is separated from the roller shaft 2, the top rod 702 and the fin 701 can automatically drop under the action of gravity, and the feeding of the raw materials to the conveying belt will not be affected.

[0048] In actual use, a plurality of groups of the moving assembly 7 can be arranged in the front-rear direction of the bottom plate 302, or the fin 701 can be arranged in a plurality of front-rear directions, and the size of the top rod 702 in the front-rear direction is increased, so that one top rod 702 can be connected to a plurality of fins 701.

[0049] Further, the avoiding hole 306 is formed through the surface of the base 301 to realize that the bottom plate 302 will not interfere with the base 301 when driving the top rod 702 to rotate.

[0050] In use, the first groove 402 and the guide column 303 and the like can divide the raw materials into a plurality of layers in the moving direction for identification, and the part of the working process and the effect are the same as those in the first embodiment, which will not be repeated here. The difference is that when the bottom plate 302 rotates based on the support rod 304 to layer the raw materials, the bottom plate 302 drives the top rod 702 to rotate synchronously through the fin 701, and the top rod 702 can move out of the avoiding hole 306. When the raw materials are layered and the bottom plate 302 continues to move, when the bottom plate 302 moves to the left of the roller shaft 2 and the top rod 702 starts to contact the outer surface of the roller shaft 2, then the top rod 702 drives the fin 701 to rise along the top surface of the bottom plate 302 under the action of the roller shaft 2, and the layered raw materials are further dispersed in the front-rear direction, which can make the raw materials more dispersed to ensure the identification accuracy of the X-ray source 5.

[0051] In the first embodiment, the bottom plate 302 and the guide column 303 and the like can realize the layering of the raw materials in the left-right direction in turn, but the layered raw materials are in a strip shape on the bottom plate 302 as a whole, and part of the raw materials may still overlap on the bottom plate 302, which leads to the failure of identification and has certain use limitations.

[0052] Compared with the first embodiment, the cooperation of the bottom plate 302, the fin 701, the guide column 303 and the roller shaft 2 can further disperse and separate the layered raw materials in the front-rear direction, which further ensures the accurate identification of the X-ray source 5. The overall scheme is combined with the movement of the conveying belt driven by the roller shaft 2, which will not affect the relative movement of the bottom plate 302 based on the roller shaft 2, and the structure is simple and has stronger applicability.

[0053] Embodiment three:

[0054] Please refer toFigures 1 to 8 In order to further ensure the accurate identification of the X-ray source 5, the length of the base plate 302 in the front-rear direction is less than the axial length of the support rod 304, so that the base plate 302 can also move along the axial direction of the support rod 304. Meanwhile, springs 307 are fixedly installed between the front and rear sides of the base plate 302 and the base 301, so that the base plate 302 can be kept in the middle position of the support rod 304 under the action of the springs 307. The springs 307 can also be arranged outside the support rod 304, and the effect is the same.

[0055] In order to realize the reciprocating movement of the base plate 302 along the axial direction of the support rod 304, the guide column 303 is lengthened in the axial direction, and a transverse plate 403 is fixedly installed on the front side of the vertical plate 401. The rear side of the transverse plate 403 is provided with a plurality of second grooves 404 and a plurality of third grooves 405, so that the guide column 303 can also correspondingly contact the transverse plate 403, the second grooves 404 and the third grooves 405 when moving along the vertical plate 401 and the first grooves 402, and the reciprocating movement of the guide column 303 along the axial direction of the support rod 304 can be realized in cooperation with the springs 307.

[0056] Please refer to Figures 1 to 10 In this embodiment, preferably: the interval between two adjacent second grooves 404 is equal to the interval between two adjacent first grooves 402, and the interval between two adjacent second grooves 404 is greater than the interval between two adjacent third grooves 405. At the same time, the first grooves 402 and the second grooves 404 are arranged in turn and staggered, and then the protruding parts of the vertical plate 401 and the transverse plate 403 are also arranged in turn and staggered. This design can effectively reduce the occupied space, and does not need to change the position of the guide column 303 relative to the vertical plate 401 and the base 301.

[0057] In this embodiment, the second grooves 404 and the third grooves 405 are also designed as a whole in the shape of U, and the vertical plate 401 and the transverse plate 403 are arranged vertically, so that the protruding parts of the vertical plate 401 and the transverse plate 403 can be crossed and overlapped, so as to reduce the overall occupied space.

[0058] In the above structure, the base plate 302 drives the guide column 303 to first contact the transverse plate 403 and the third grooves 405, and in this process, the guide column 303 and the base plate 302 can realize high-frequency reciprocating movement forward and backward. Of course, the above process is carried out from right to left, and if the moving direction of the raw material is opposite, the positions of the third grooves 405 and the second grooves 404 should also be arranged reversely.

[0059] In use, the raw materials can be divided into multiple layers along the moving direction by the bottom plate 302 and the fin 701, and the layered raw materials can be further dispersed in the front-back direction to be identified. The working process and effect are the same as those in Embodiment Two, and are not repeated here. The difference lies in that the raw materials fall from the right roller shaft 2 and move to the left with the bottom plate 302. The guide column 303 is in contact with the transverse plate 403 and the third groove 405, and the high-frequency front-back reciprocating movement of the guide column 303, the bottom plate 302 and the upper raw materials can be realized by cooperating with the spring 307, so that the raw materials on the bottom plate 302 are preliminarily dispersed. With the continuous movement of the bottom plate 302, the guide column 303 starts to contact the transverse plate 403 and the second groove 404, and the guide column 303 is also in contact with the vertical plate 401 and the first groove 402 at this time. When the guide column 303 contacts the second groove 404, it is separated from the first groove 402. When the guide column 303 contacts the first groove 402, it is separated from the second groove 404. In this process, the reciprocating movement of the bottom plate 302 and the raw materials can be continued, and the rotation of the bottom plate 302 based on the support rod 304 can be realized to complete the rapid layering of the raw materials.

[0060] It should be noted that the vertical plate 401 can drive the bottom plate 302 to move back and forth multiple times by cooperating with the guide column 303. In this embodiment, the X-ray source 5 is preferably arranged above the left roller shaft 2, i.e. the bottom plate 302 is not identified by the X-ray source 5 after moving back and forth. This can ensure the accuracy of identification.

[0061] In Embodiment Two, the layered raw materials can be further dispersed in the front-back direction by the guide column 303 and the fin 701, but the bottom plate 302 is fixed relative to the base 301 in the front-back direction, so the whole raw materials will not be offset after being in the form of strips on the bottom plate 302, which may still affect the identification of some raw materials and have certain use limitations.

[0062] Compared with Embodiment Two, the transverse plate 403, the second groove 404, the guide column 303 and the bottom plate 302 can cooperate to drive the bottom plate 302 to move back and forth in the front-back direction. Before the raw materials are layered, the raw materials can be moved at a high frequency to speed up the spreading of the raw materials. After the raw materials are layered, the raw materials can be moved at a low frequency to keep the layered state and further disperse the raw materials, thereby further ensuring the accurate identification of the X-ray source 5. The overall scheme is combined with the movement of the guide column 303 driven by the bottom plate 302, the overall occupied space is smaller and the functionality is stronger, which meets more needs in actual use.

[0063] Embodiment Four:

[0064] Please refer to Figures 1 to 10The embodiment of the present application provides a coal sorting method, which adopts any one of the embodiments one to three, and thus has the corresponding beneficial effects. The sorting process is as follows: firstly, the raw materials are dropped from the right side of the conveying belt so as to fall on the partial support assembly 3; then the control assembly is started to make the raw materials move along the conveying belt from right to left, when the support assembly 3 supporting the raw materials contacts with the adjusting assembly 4, the support assembly 3 can be turned counterclockwise to sequentially divide the raw materials into multiple layers; then the layered raw materials are identified by the sorting mechanism, and after sliding off the support assembly 3, the raw materials are sorted by the sorting mechanism to complete the sorting of the coal and the gangue.

Claims

1. An X-ray coal sorter comprising a table and a sorting mechanism disposed on the table, characterised in that, The workbench is provided with a conveying belt for conveying raw materials and a control assembly for driving the conveying belt to move, the conveying belt comprises a plurality of support assemblies connected in sequence, and the workbench is fixedly provided with an adjusting assembly movably combined with part of the support assemblies; when the control assembly drives the support assemblies to move and the support assemblies contact the adjusting assembly, the corresponding support assemblies can be deflected to push the raw materials in the moving direction to form layers; The support assembly comprises a base, a support rod rotatably installed on the surface of the base, a bottom plate fixedly installed on the outer surface of the support rod, and a torsional spring sleeved on the outer surface of the support rod, the bottom plate being kept in a combined state with the base under the action of the torsional spring; the base is fixedly provided with a guide column movably combined with the adjusting assembly, the bottom plate being driven to rotate based on the support rod when the guide column contacts and moves along the adjusting assembly; a connecting piece is rotatably installed between adjacent two bases, and a plurality of bases are jointly formed into the conveying belt under the action of the connecting piece; Adjacent two bottom plates are provided with a spacing, and the length dimension of the bottom plate in the moving direction of the raw materials is greater than the length dimension of the base in the moving direction of the raw materials; The adjusting assembly comprises a vertical plate fixedly connected with the workbench and corresponding to the position of the guide column, and a plurality of first grooves with equal spacing are formed in the length direction of the top of the vertical plate; The first grooves are designed in a U shape as a whole, the length dimension of the first grooves in the moving direction of the raw materials is greater than or equal to the length dimension of the bottom plate in the moving direction of the raw materials, so that one of the adjacent two bottom plates can be turned over under the action of the adjusting assembly.

2. The X-ray coal sorter of claim 1, wherein, The control assembly comprises two rollers for driving the conveying belt to move, and the end of one of the rollers is fixedly provided with a motor fixedly connected with the workbench.

3. The X-ray coal sorter of claim 1, wherein, A moving assembly extending out of the base is slidably installed on the surface of the bottom plate, and the moving assembly can further disperse the raw materials in the front-back direction when the moving assembly moves with the bottom plate and contacts the outer surface of the roller.

4. The X-ray coal sorter of claim 3, wherein, The moving assembly comprises a fin slidably installed on the bottom plate, and a top rod extending out of the base is fixedly installed on the surface of the fin, the number of the fins being a plurality and all being fixedly connected with the top rod.

5. The X-ray coal sorter of any one of claims 1-4, wherein, The sorting mechanism comprises an X-ray source located on one side above the conveying belt and a blowing system corresponding to the raw material discharging position, and the X-ray source and the blowing system are electrically connected.

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