Coal gangue follow-up sorting device in raw coal conveying

Abstract

The utility model discloses a coal gangue follow-up sorting device in raw coal conveying, which comprises a sorting frame, a first conveyor, a plurality of support columns, a second conveyor, a sorting roller, a driving mechanism, a discharge port and a material shifting mechanism, the first conveyor is fixedly arranged on the sorting frame, and the plurality of support columns are fixedly arranged on the sorting frame; the second conveyor is fixedly arranged between the supporting columns, the multiple sorting rollers are transversely and rotationally arranged in the sorting frame, the driving mechanism is arranged on the sorting frame and used for controlling the sorting rollers to rotate synchronously, the discharging opening is formed in the side wall of the sorting frame, and the material stirring mechanism is arranged on the sorting frame and used for driving the sorting rollers to rotate synchronously. According to the coal gangue follow-up sorting device in raw coal conveying, coal briquettes and coal gangue can be conveniently sorted through gaps between the sorting rollers, meanwhile, stirring is conducted in the direction of the discharging opening through the stirring block in the sorting process, and therefore the problem that in the prior art, the sorting efficiency is low is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of gangue sorting devices, in particular to a gangue follow-up sorting device in raw coal transportation. Background Art

[0002] Gangue is a kind of black-gray rock with low carbon content and harder than coal that accompanies coal seams during the coal forming process. It is a solid waste. In the raw coal mining, gangue and raw coal are mined together and transported to the ground together by belt conveyors. At present, the separation of gangue and raw coal is mainly carried out on the ground above the mine. The sorting methods include manual sorting, water sorting, air sorting and gamma ray sorting. Among them, water sorting and air sorting have the characteristics of large investment, large equipment footprint, and are not suitable for underground production environment. Water sorting is even more difficult in areas with scarce water resources.

[0003] At present, some underground gangue separation technologies have been developed in the underground raw coal transportation. These technologies mainly achieve gangue separation by setting a gangue separation screen on the raw coal conveying belt channel. For example, the invention patent with patent number 200710022602.7 and the name of "mine gangue separation method and equipment" discloses a large gangue separation equipment suitable for underground. The technical solution is to set a gangue separator in the underground raw coal conveying belt, first separate the coal blocks with a particle size greater than 50 mm, and then separate them into the raw coal conveying belt. The coal and gangue are screened out, and the large pieces of material screened out are sent to the crushing separator. The rotating impeller in the crusher crushes these large-size pieces of material. The broken coal with a particle size less than 50 mm falls into the rear belt conveyor through the spiral screen plate and is transported to the underground coal bunker. The gangue that is not broken in the crushing separator is thrown to the rear baffle under the action of the rotating force of the impeller in the separator, falls on the gangue conveyor belt, and is transported to the gangue bin, thereby realizing the sorting of gangue with a particle size greater than 50 mm.

[0004] This technical solution mainly utilizes the different hardness of coal and gangue, adds a sorter and a crusher to the raw coal conveyor belt, and the large-size gangue is sorted out through two procedures. The first process completes the sorting of large-size materials (including coal blocks and gangue blocks), and the second process crushes the selected large-size materials, crushes the large-size coal blocks, and throws out the large-size gangue that cannot be crushed, thereby realizing the separation of large-size gangue from coal. This sorting technical solution has the defects of long sorting process and high equipment investment cost. In particular, in the second process, large-size coal blocks and large-size gangue are crushed together and separated by crushing, which has the problems of serious energy waste, low gangue sorting accuracy, large site occupation by sorting equipment, and large equipment investment. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies of the prior art, the utility model provides a gangue follow-up sorting device in raw coal transportation to solve the problem of low sorting efficiency of the prior art mentioned in the background technology.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gangue follow-up sorting device in raw coal transportation, comprising a sorting frame, a first conveyor, a support column, a second conveyor, a sorting roller, a driving mechanism, a discharge port and a material shifting mechanism;

[0009] The first conveyor is fixedly arranged on the sorting frame;

[0010] A plurality of support columns are fixedly arranged on the selection frame;

[0011] The second conveyor is fixedly disposed between the support columns;

[0012] The sorting rollers are provided in plurality, and the plurality of sorting rollers are arranged in the sorting frame for transverse rotation;

[0013] The driving mechanism is arranged on the sorting frame and is used to control the sorting rollers to rotate synchronously;

[0014] The discharge port is arranged on the side wall of the sorting frame;

[0015] The material shifting mechanism is arranged on the sorting frame, and is used for shifting the coal gangue falling between the sorting rollers into the material discharging port.

[0016] Furthermore, the driving mechanism comprises:

[0017] A first cavity, the first cavity being opened on the side wall of the sorting frame corresponding to the sorting roller;

[0018] A first gear, the first gear being arranged in the first cavity for rotation corresponding to the sorting roller, and the first gear being fixedly connected to the sorting roller;

[0019] Wherein, adjacent first gears are meshed with each other;

[0020] A first motor, wherein the first motor is fixedly disposed on the selection frame, and an output end of the first motor is fixedly connected to a corresponding first gear.

[0021] Furthermore, the material-selecting mechanism comprises:

[0022] A support frame, wherein the support frame is slidably arranged on the sorting frame;

[0023] A driving port, the driving port being provided on the supporting frame, and a lead screw nut being fixedly arranged in the driving port;

[0024] A reciprocating screw, the reciprocating screw being rotatably disposed in the selection frame, and the reciprocating screw passing through the screw nut;

[0025] A second motor, wherein an output end of the second motor is fixedly connected to the reciprocating screw;

[0026] A material-dispensing roller, the material-dispensing roller being rotatably disposed in the supporting frame;

[0027] A material shifting block, wherein a plurality of the material shifting blocks are arranged on the periphery of the material shifting roller, and a plurality of material shifting rods are fixedly arranged between the material shifting block and the material shifting roller;

[0028] A power input mechanism is arranged on the support frame and is used to control the rotation of the material-moving roller.

[0029] As a further solution of this scheme, the power input mechanism includes:

[0030] a second cavity, the second cavity being disposed on the support frame;

[0031] a first driving rod, the first driving rod being rotatably disposed in the second cavity, and a first bevel gear being fixedly disposed on the first driving rod;

[0032] A second bevel gear, the second bevel gear is rotatably disposed on the side wall of the second cavity, and the second bevel gear is fixedly connected to the material-moving roller;

[0033] A third motor is fixedly disposed on the support frame, and an output end of the third motor is fixedly connected to the first driving rod.

[0034] As a further solution of this solution, a cleaning mechanism is also included, which is arranged on the support frame and is used to clean impurities attached to the reciprocating screw. The cleaning mechanism includes:

[0035] A cleaning ring, the cleaning ring being rotatably arranged on the support frame corresponding to the driving port, and the inner wall of the cleaning ring being provided with cleaning bristles and a cleaning port;

[0036] a first annular rack, wherein the first annular rack is fixedly disposed on the cleaning ring;

[0037] A second gear, the second gear is rotatably disposed on the support frame, and the second gear is meshed with the first annular rack;

[0038] A protective cover, the protective cover is fixedly arranged on the supporting frame corresponding to the cleaning ring;

[0039] A power transmission mechanism is disposed in the support frame and is used to control the second gear to rotate.

[0040] On the basis of the above scheme, the power transmission mechanism includes:

[0041] a third cavity, the third cavity being opened between the second gears;

[0042] a second driving rod, the second driving rod being fixedly disposed between the second gears and passing through the third cavity;

[0043] a third bevel gear, the third bevel gear being fixedly disposed on the second driving rod;

[0044] a fourth bevel gear, the fourth bevel gear being rotatably disposed on the side wall of the third cavity, the fourth bevel gear being meshed with the third bevel gear;

[0045] a fourth cavity, the fourth cavity being opened on one side of the third cavity corresponding to the first driving rod;

[0046] a fifth bevel gear, the fifth bevel gear being fixedly disposed on the first driving rod;

[0047] A sixth bevel gear is rotatably disposed on the side wall of the fourth cavity, the sixth bevel gear is meshed with the fifth bevel gear, and a third driving rod is fixedly disposed between the sixth bevel gear and the fourth bevel gear.

[0048] (III) Beneficial effects

[0049] Compared with the prior art, the utility model provides a gangue follow-up sorting device in raw coal transportation, which has the following beneficial effects:

[0050] 1. In the utility model, after the raw coal is added into the sorting frame, the coal blocks can be easily rotated by the sorting rollers to fall onto the second conveyor through the gaps between the sorting rollers, while the coal gangue stays in the sorting frame, so that the coal blocks and the coal gangue can be easily sorted;

[0051] 2. In the utility model, the setting of the material-digging mechanism facilitates the reciprocating movement of the support frame by the rotation of the reciprocating screw, and the material-digging roller is controlled to rotate in a single direction during the movement of the support frame, so that the coal blocks and the coal gangue can be turned and mixed by the material-digging block, thereby improving the sorting efficiency. At the same time, during the sorting process, the coal gangue can be moved toward the discharge port, so as to facilitate the discharge of the coal gangue from the sorting frame;

[0052] 3. In the utility model, by setting the cleaning mechanism, it is convenient to control the cleaning ring to rotate during the movement of the support frame, so that the impurities attached to the reciprocating screw can be cleaned by the cooperation of the cleaning bristles and the cleaning port, thereby improving the smoothness and stability of the movement of the support frame;

[0053] 4. In the utility model, through the arrangement of the sorting frame, the first conveyor, the support column, the second conveyor, the sorting rollers, the driving mechanism, the discharge port and the material shifting mechanism, it is convenient to sort the coal blocks and the coal gangue through the gaps between the sorting rollers. At the same time, during the sorting process, the material shifting block is shifted toward the discharge port, thereby solving the problem of low sorting efficiency of the prior art mentioned in the background technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 This is a schematic diagram of the three-dimensional structure of this application;

[0055] Figure 2 This is a schematic diagram of the cross-sectional structure of the selection box for this application;

[0056] Figure 3 This is a schematic diagram of the three-dimensional structure of the material transfer mechanism for this application;

[0057] Figure 4 This is a schematic diagram of the cross-sectional structure of the material transfer mechanism of this application;

[0058] Figure 5 This is a schematic cross-sectional structure diagram of the driving mechanism of this application.

[0059] In the figure: 1. sorting frame; 2. first conveyor; 3. second conveyor; 4. sorting roller; 5. discharge port; 6. first gear; 7. first motor; 8. support frame; 9. reciprocating screw; 10. second motor; 11. material discharging roller; 12. material discharging block; 13. first bevel gear; 14. second bevel gear; 15. third motor; 16. cleaning ring; 17. first annular rack; 18. second gear; 19. protective cover; 20. fourth bevel gear; 21. sixth bevel gear. DETAILED DESCRIPTION

[0060] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0061] See also Figures 1 to 5A gangue follow-up sorting device in raw coal transportation comprises a sorting frame 1, a first conveyor 2, support columns, a second conveyor 3, sorting rollers 4, a driving mechanism, a discharge port 5 and a material shifting mechanism, wherein the first conveyor 2 is fixedly arranged on the sorting frame 1, a plurality of support columns are fixedly arranged on the sorting frame 1, the second conveyor 3 is fixedly arranged between the support columns, a plurality of sorting rollers 4 are arranged, a plurality of sorting rollers 4 are arranged to rotate transversely in the sorting frame 1, a driving mechanism is arranged on the sorting frame 1, and is used to control the sorting rollers 4 to rotate synchronously, the discharge port 5 is opened on the side wall of the sorting frame 1, and the material shifting mechanism is arranged on the sorting frame 1, and is used to shift the gangue falling between the sorting rollers 4 into the discharge port 5.

[0062] Among them, the driving mechanism includes a first cavity, a first gear 6 and a first motor 7. The first cavity is opened on the side wall of the sorting frame 1 corresponding to the sorting roller 4. The first gear 6 is arranged in the first cavity for rotation corresponding to the sorting roller 4. The first gear 6 is fixedly connected to the sorting roller 4, wherein adjacent first gears 6 are meshed with each other. The first motor 7 is fixedly arranged on the sorting frame 1, and the output end of the first motor 7 is fixedly connected to the corresponding first gear 6.

[0063] Specifically, the operator controls the operation of the first motor 7, and the operation of the first motor 7 can drive the first gear 6 to rotate, and then drive the sorting roller 4 to rotate through the engagement between multiple first gears 6. The operation of the first conveyor 2 can add raw coal into the sorting frame 1, so that the coal blocks and coal gangue can be sorted through the gaps between the sorting rollers 4 under the rotation of the sorting rollers 4.

[0064] Among them, the material-dispensing mechanism includes a support frame 8, a driving port, a reciprocating screw 9, a second motor 10, a material-dispensing roller 11, a material-dispensing block 12 and a power input mechanism. The support frame 8 is slidably arranged on the sorting frame 1, the driving port is opened on the support frame 8, a screw nut is fixedly arranged in the driving port, the reciprocating screw 9 is rotatably arranged in the sorting frame 1, the reciprocating screw 9 passes through the screw nut, the output end of the second motor 10 is fixedly connected to the reciprocating screw 9, the material-dispensing roller 11 is rotatably arranged in the support frame 8, a plurality of material-dispensing blocks 12 are arranged on the circumference of the material-dispensing roller 11, and a material-dispensing block 12 is fixedly arranged between the material-dispensing block 12 and the material-dispensing roller 11. Multiple material tapping rods and a power input mechanism are arranged on the support frame 8, which are used to control the rotation of the material tapping roller 11. The power input mechanism includes a second cavity, a first driving rod, a second bevel gear 14 and a third motor 15. The second cavity is opened on the support frame 8, the first driving rod is rotatably arranged in the second cavity, the first driving rod is fixedly provided with a first bevel gear 13, the second bevel gear 14 is rotatably arranged on the side wall of the second cavity, the second bevel gear 14 is fixedly connected to the material tapping roller 11, the third motor 15 is fixedly arranged on the support frame 8, and the output end of the third motor 15 is fixedly connected to the first driving rod.

[0065] Specifically, during the sorting process, the operator controls the second motor 10 to work, and the work of the second motor 10 can drive the reciprocating screw 9 to rotate, and at the same time, the cooperation between the reciprocating screw 9 and the screw nut drives the support frame 8 to reciprocate. During the movement of the support frame 8, the operator controls the third motor 15 to work, and the work of the third motor 15 can drive the first drive rod and the first bevel gear 13 to rotate, and at the same time, the engagement of the first bevel gear 13 and the second bevel gear 14 drives the material transfer roller 11 to rotate, so that the coal blocks and coal gangue can be turned over by the material transfer block 12, thereby improving the sorting efficiency. At the same time, during the sorting process, the coal gangue can be moved toward the discharge port 5, so as to facilitate the discharge of the coal gangue from the sorting frame 1.

[0066] Among them, it also includes a cleaning mechanism, which is arranged on the support frame 8 and is used to clean impurities attached to the reciprocating screw 9. The cleaning mechanism includes a cleaning ring 16, a first annular rack 17, a second gear 18, a protective cover 19 and a power transmission mechanism. The cleaning ring 16 is rotationally arranged on the support frame 8 corresponding to the driving port, and the inner wall of the cleaning ring 16 is provided with cleaning bristles and a cleaning port. The first annular rack 17 is fixedly arranged on the cleaning ring 16, and the second gear 18 is rotationally arranged on the support frame 8. The second gear 18 is meshed with the first annular rack 17. The protective cover 19 is fixedly arranged on the support frame 8 corresponding to the cleaning ring 16. The power transmission mechanism is arranged in the support frame 8 to control the second gear 18 to rotate. The power transmission mechanism includes The third cavity, the second driving rod, the third bevel gear, the fourth bevel gear 20, the fourth cavity, the fifth bevel gear and the sixth bevel gear 21. The third cavity is opened between the second gears 18. The second driving rod is fixedly set between the second gears 18. The second driving rod passes through the third cavity. The third bevel gear is fixedly set on the second driving rod. The fourth bevel gear 20 is rotatably set on the side wall of the third cavity. The fourth bevel gear 20 is meshed with the third bevel gear. The fourth cavity is opened on one side of the third cavity corresponding to the first driving rod. The fifth bevel gear is fixedly set on the first driving rod. The sixth bevel gear 21 is rotatably set on the side wall of the fourth cavity. The sixth bevel gear 21 is meshed with the fifth bevel gear. The third driving rod is fixedly set between the sixth bevel gear 21 and the fourth bevel gear 20.

[0067] Specifically, during the movement of the support frame 8, the rotation of the first drive rod can drive the sixth bevel gear 21 and the fourth bevel gear 20 to rotate through the transmission between the sixth bevel gear 21 and the fifth bevel gear. At the same time, the second drive rod and the second gear 18 can be driven to rotate through the transmission between the fourth bevel gear 20 and the third bevel gear. At the same time, the cleaning ring 16 is driven to rotate through the engagement between the second gear 18 and the first annular rack 17. During the rotation of the cleaning ring 16, impurities attached to the reciprocating screw 9 can be cleaned by the cooperation of the cleaning bristles and the cleaning port, thereby improving the smoothness and stability of the movement of the support frame 8.

[0068] In summary, when the gangue follow-up sorting device in raw coal transportation is in use, the operator controls the first motor 7 to work, and the work of the first motor 7 can drive the first gear 6 to rotate, and then drive the sorting roller 4 to rotate through the meshing between the multiple first gears 6, and the work of the first conveyor 2 can add the raw coal into the sorting frame 1, so that the coal blocks and the gangue are sorted through the gaps between the sorting rollers 4 under the rotation of the sorting rollers 4. During the sorting process, the operator controls the second motor 10 to work, and the work of the second motor 10 can drive the reciprocating screw 9 to rotate, and at the same time, the support frame 8 is driven to reciprocate through the cooperation of the reciprocating screw 9 and the screw nut. During the movement of the support frame 8, the operator controls the third motor 15 to work, and the work of the third motor 15 can drive the first drive rod and the first bevel gear 13 to rotate, and at the same time, through the first bevel gear 13 and the second bevel gear The meshing of 14 drives the material-moving roller 11 to rotate, so that the coal blocks and coal gangue can be turned over and mixed by the material-moving block 12, thereby improving the sorting efficiency. At the same time, during the sorting process, the coal gangue can be moved toward the discharge port 5, so as to facilitate the discharge of the coal gangue from the sorting frame 1. During the movement of the support frame 8, the rotation of the first driving rod can drive the sixth bevel gear 21 and the fourth bevel gear 20 to rotate through the transmission of the sixth bevel gear 21 and the fifth bevel gear. At the same time, the second driving rod and the second gear 18 can be driven to rotate through the transmission of the fourth bevel gear 20 and the third bevel gear. At the same time, the meshing of the second gear 18 and the first annular rack 17 drives the cleaning ring 16 to rotate. During the rotation of the cleaning ring 16, the impurities attached to the reciprocating screw 9 can be cleaned by the cooperation of the cleaning bristles and the cleaning port, thereby improving the smoothness and stability of the movement of the support frame 8.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A mobile coal gangue separation device in raw coal transportation, characterized in that: include: Selection box (1); A first conveyor (2), wherein the first conveyor (2) is fixedly arranged on the sorting frame (1); Support columns, a plurality of the support columns being fixedly arranged on the selection frame (1); A second conveyor (3), the second conveyor (3) being fixedly arranged between the support columns; A sorting roller (4), wherein the sorting roller (4) is provided in plurality, and the plurality of sorting rollers (4) are arranged in a transversely rotatable manner in the sorting frame (1); A driving mechanism, the driving mechanism being arranged on the sorting frame (1) and being used for controlling the sorting rollers (4) to rotate synchronously; A discharge port (5), the discharge port (5) being disposed on a side wall of the sorting frame (1); A material shifting mechanism is arranged on the sorting frame (1) and is used to shift the coal gangue falling between the sorting rollers (4) into the material discharge port (5).

2. The device for separating gangue from raw coal during transportation according to claim 1 is characterized in that: The driving mechanism comprises: A first cavity, the first cavity being opened on the side wall of the sorting frame (1) corresponding to the sorting roller (4); a first gear (6), the first gear (6) being arranged in the first cavity so as to rotate correspondingly to the sorting roller (4), the first gear (6) being fixedly connected to the sorting roller (4); Wherein, adjacent first gears (6) are meshed with each other; A first motor (7), wherein the first motor (7) is fixedly arranged on the selection frame (1), and an output end of the first motor (7) is fixedly connected to a corresponding first gear (6).

3. The device for separating gangue from raw coal during transportation according to claim 2 is characterized in that: The material shifting mechanism comprises: A support frame (8), wherein the support frame (8) is slidably arranged on the sorting frame (1); A drive port, the drive port being opened on the support frame (8), and a lead screw nut being fixedly arranged in the drive port; A reciprocating screw (9), the reciprocating screw (9) being rotatably disposed in the selection frame (1), the reciprocating screw (9) passing through the screw nut; A second motor (10), wherein an output end of the second motor (10) is fixedly connected to the reciprocating screw (9); A material-moving roller (11), wherein the material-moving roller (11) is rotatably arranged in the support frame (8); A material shifting block (12), wherein a plurality of the material shifting blocks (12) are arranged on the circumferential side of the material shifting roller (11), and a plurality of material shifting rods are fixedly arranged between the material shifting block (12) and the material shifting roller (11); A power input mechanism is arranged on the support frame (8) and is used to control the material-moving roller (11) to rotate.

4. The device for separating gangue during raw coal transportation according to claim 3 is characterized in that: The power input mechanism comprises: a second cavity, the second cavity being opened on the support frame (8); A first driving rod, the first driving rod being rotatably disposed in the second cavity, and a first bevel gear (13) being fixedly disposed on the first driving rod; A second bevel gear (14), the second bevel gear (14) being rotatably disposed on the side wall of the second cavity, and the second bevel gear (14) being fixedly connected to the material-moving roller (11); A third motor (15), wherein the third motor (15) is fixedly arranged on the support frame (8), and an output end of the third motor (15) is fixedly connected to the first driving rod.

5. The device for separating gangue during raw coal transportation according to claim 4 is characterized in that: A cleaning mechanism is also included, the cleaning mechanism being arranged on the support frame (8) and being used for cleaning impurities attached to the reciprocating screw (9), the cleaning mechanism comprising: A cleaning ring (16), the cleaning ring (16) being rotatably arranged on the support frame (8) corresponding to the driving port, and the inner wall of the cleaning ring (16) being provided with cleaning bristles and a cleaning port; A first annular rack (17), wherein the first annular rack (17) is fixedly arranged on the cleaning ring (16); a second gear (18), the second gear (18) being rotatably disposed on the support frame (8), the second gear (18) being meshed with the first annular rack (17); A protective cover (19), the protective cover (19) being fixedly arranged on the support frame (8) corresponding to the cleaning ring (16); A power transmission mechanism is arranged in the support frame (8) and is used to control the second gear (18) to rotate.

6. The device for separating gangue during raw coal transportation according to claim 5 is characterized in that: The power transmission mechanism comprises: a third cavity, the third cavity being opened between the second gears (18); a second driving rod, the second driving rod being fixedly disposed between the second gears (18), and the second driving rod passing through the third cavity; a third bevel gear, the third bevel gear being fixedly disposed on the second driving rod; a fourth bevel gear (20), the fourth bevel gear (20) being rotatably disposed on the side wall of the third cavity, the fourth bevel gear (20) being meshed with the third bevel gear; a fourth cavity, the fourth cavity being opened on one side of the third cavity corresponding to the first driving rod; a fifth bevel gear, the fifth bevel gear being fixedly disposed on the first driving rod; A sixth bevel gear (21), the sixth bevel gear (21) is rotatably arranged on the side wall of the fourth cavity, the sixth bevel gear (21) is meshed with the fifth bevel gear, and a third driving rod is fixedly arranged between the sixth bevel gear (21) and the fourth bevel gear (20).

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