Gangue picking device suitable for coal preparation plant and using method of gangue picking device

Abstract

The invention discloses a gangue picking device suitable for a coal preparation plant and a using method of the gangue picking device, and relates to the field of coal mines, the gangue picking device comprises a feeding port, a conveying belt, a discharging mechanism, a separating mechanism and a discharging mechanism, the discharging mechanism is used for feeding and conveying minerals, the separating mechanism is used for separating and conveying ores, and the discharging mechanism is used for discharging the ores on the conveying belt. The two fixing discs are driven by the fixing shafts to rotate together, the mounting grooves extrude one ends of the first connecting shafts, so that the first connecting shafts drive the movable plate to move in the vertical direction, one first connecting shaft enters an inner cavity of the movable groove through the mounting grooves, and the other first connecting shaft enters an inner cavity of the arc-shaped groove through the mounting grooves; and extrusion on the first connecting shaft is relieved, and one end of the first connecting shaft is limited, so that time difference exists in lifting of the movable plates, the two movable plates are driven to alternately ascend and descend, ore between the partition plates is conveyed in a separated mode, and gangue in the ore is conveniently sorted.

Description

Technical Field

[0001] The present invention relates to the field of coal mines, and particularly relates to a gangue picking device applicable to coal preparation plants and a using method thereof. Background Art

[0002] During the coal mining process, other crushed stones will be mixed into the ore, which is usually called gangue. Gangue is an associated waste product in coal mining. Coal-gangue separation is an essential process in the coal production process, which can reduce the washing cost, improve the grade of the finished coal, and increase the economic benefits of coal enterprises.

[0003] When a coal preparation plant separates coal and gangue, it usually uses a conveyor belt to transport the coal-gangue mixed ore, so that the coal-gangue mixed ore passes through an X-ray detection instrument. The X-ray detection instrument detects the gangue and judges and analyzes the inspection data, and then controls the mechanical gripper to sort the gangue on the conveyor belt. Since the coal-gangue mixed ore is mostly continuously spread flat on the conveyor belt and moves with the conveyor belt, when a large amount of gangue appears at the same position on the conveyor belt, it will greatly increase the working load of the mechanical gripper, and it is easy to miss, which affects the sorting of the gangue on the conveyor belt by the mechanical gripper, is not convenient for sorting the ore, and the mechanical gripper usually grabs and sorts the large-volume gangue, and it is not convenient to separate the small-volume gangue, reducing the quality of the coal-gangue separation operation. Summary of the Invention

[0004] The purpose of the present invention is to provide a gangue picking device applicable to coal preparation plants and a using method thereof to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solution: A gangue picking device applicable to a coal preparation plant, including a feed inlet;

[0006] A conveyor belt, one end of the conveyor belt is arranged below one end of the feed inlet;

[0007] It further includes a blanking mechanism, the blanking mechanism is arranged in the inner cavity of the feed inlet, and the blanking mechanism is used for feeding and transporting minerals;

[0008] A separation mechanism, the separation mechanism is arranged at one end of the inner cavity of the feed inlet, and the separation mechanism is used for separating and transporting the ore;

[0009] A driving mechanism, the driving mechanism is arranged on the feed inlet, and the driving mechanism is used for driving the blanking mechanism and the separation mechanism to move;

[0010] A discharging mechanism, the discharging mechanism is arranged at the other end of the conveyor belt, and the discharging mechanism is used for discharging the ore on the conveyor belt.

[0011] Preferably, the blanking mechanism includes:

[0012] A partition plate, the lower surface of the partition plate is fixedly connected to the bottom of the inner wall of one end of the feed inlet, and the partition plates are arranged at equal intervals in a straight line;

[0013] A rotating shaft, both ends of the rotating shaft are rotatably inserted through both sides of the other end of the feed inlet;

[0014] A sleeve, the sleeve is arranged in the inner cavity of the feed inlet, and the sleeve is fixedly inserted through the middle of the rotating shaft;

[0015] A fixing plate, one end of the fixing plate is fixedly connected to the outer wall of the sleeve, and the fixing plates are arranged at equal intervals in an annular array;

[0016] A fixing block, the fixing block is fixedly connected to the other end of the fixing plate, and the fixing block is triangular in shape;

[0017] A driving motor, the driving motor is arranged on one side of the outer wall of the feed inlet.

[0018] Preferably, the separating mechanism includes:

[0019] A fixed disk, the fixed disk is arranged on both sides of the inner cavity of the feed inlet;

[0020] A fixed shaft, one end of the fixed shaft is fixedly inserted through the middle of the fixed disk, and both ends of the fixed shaft are rotatably inserted through both sides of the feed inlet;

[0021] An installation groove, the installation groove is arranged on one side of the fixed disk, and the installation groove is arranged in a vertical straight line;

[0022] A movable groove, the movable groove is arranged at the top and bottom of one side of the fixed disk, and the movable groove is arranged at both ends of the installation groove;

[0023] An arc-shaped groove, the arc-shaped groove is arranged in the middle of the installation groove, and the arc-shaped groove is arc-shaped.

[0024] Preferably, the separating mechanism further includes:

[0025] A movable plate, the movable plate is arranged in the inner cavity of the feed inlet, and the outer wall of the movable plate is attached to the outer wall of the partition plate;

[0026] A connecting shaft one, the connecting shaft one is fixedly inserted through the top of the movable plate, and one end of the connecting shaft one is slidably inserted through the inner cavity of the installation groove;

[0027] A limiting block, both ends of the limiting block are fixedly connected to the inner wall of the feed inlet and the outer wall of the partition plate, and the limiting block is slidably inserted through one end of the movable plate;

[0028] A limiting rod, the bottom of the limiting rod is slidably inserted through the middle of a limiting block;

[0029] A first connecting block, the lower surface of the first connecting block is fixedly connected to the top end of the limiting rod, and one end of the first connecting block is fixedly connected to the top of the front surface of the movable plate.

[0030] Preferably, the driving mechanism includes:

[0031] A first bevel gear, the middle of the first bevel gear is fixedly inserted through one end of a fixed shaft;

[0032] A second bevel gear, the second bevel gear is meshed with one side of the first bevel gear;

[0033] A fixed rod, one end of the fixed rod is fixedly inserted through the middle of the second bevel gear;

[0034] A mounting seat, the mounting seat is rotatably inserted through one end of the fixed rod.

[0035] Preferably, the driving mechanism further includes:

[0036] A protective shell, the protective shell is fixedly connected to one side of the outer wall of the feeding port, and the protective shell is arranged outside the first bevel gear and the second bevel gear;

[0037] A pulley, the pulley is fixedly inserted through one end of the rotating shaft and the fixed shaft respectively, and the pulley is arranged in the inner cavity of the protective shell;

[0038] A transmission belt, the transmission belt is arranged between the pulleys, and the transmission belt is used to drive the pulleys to rotate.

[0039] Preferably, the blanking mechanism includes:

[0040] A blanking plate, the blanking plate is arranged at the other end of the conveyor belt, and the blanking plate is inclined;

[0041] An aggregate bin, one end of the aggregate bin is fixedly connected to the inner side wall of the blanking plate, and the aggregate bin is arranged below the conveyor belt;

[0042] A through groove, the through groove is arranged at the top of one end of the aggregate bin, and the through groove is used for ore to fall into the inner cavity of the aggregate bin;

[0043] A movable block, the movable block is slidably inserted through the top of the blanking plate, and the movable blocks are arranged in a linear equidistant arrangement;

[0044] A groove, the groove is arranged at the top of the blanking plate, and the inner cavity of the groove is slidably inserted through the movable plate;

[0045] The mounting shaft is fixedly and insertedly connected with one end of the movable block, and one end of the mounting shaft is rotatably and insertedly connected with one side of the inner wall of the groove.

[0046] Preferably, the unloading mechanism further comprises:

[0047] A second connecting block, the upper surface of which is fixedly connected to the lower surface of the movable block;

[0048] A connecting rod, wherein the connecting rod is arranged below the movable block;

[0049] A second connecting shaft, wherein the second connecting shaft is fixedly interlaced with one end of the connecting rod, and one end of the second connecting shaft is rotatably interlaced with the second connecting block;

[0050] A hydraulic cylinder, wherein the hydraulic cylinder is fixedly connected to the inner side wall of the blanking plate;

[0051] A fixed seat is transmission-connected with the output end of the hydraulic cylinder, and the fixed seat is rotationally and interlacedly connected with another connecting shaft.

[0052] Preferably, a mechanical gripper is provided on one side of the conveyor belt, an X-ray detector is provided above both ends of the conveyor belt, and a fixing frame is fixedly installed on both ends of the conveyor belt, and the fixing frame is fixedly installed with the X-ray detector.

[0053] The present invention also provides a method for using a gangue picking device suitable for a coal preparation plant, comprising the following specific steps:

[0054] Step 1: First, add the ore to be sorted into the inner cavity of the feed port, and use the operation of the driving motor to drive the pulley and the rotating shaft to rotate, and the rotating shaft drives multiple fixed plates and fixed blocks to rotate together, and the fixed plates and fixed blocks push the ore, so that the ore enters between multiple partition plates, and the ore is separated and transported;

[0055] Step 2: Then, by driving the motor, one of the fixed shafts and the first bevel gear is driven to rotate, and the meshing action of the first bevel gear and the second bevel gear is utilized to make the fixed shaft and the fixed plate rotate together. As the fixed plate rotates, the inner wall of one end of the mounting groove presses one end of the connecting shaft, pushing the two movable plates to move alternately in the vertical direction. The movable plates separate the ore between the partition plates, so that the ore is separated and falls on the upper surface of the conveyor belt, which is convenient for sorting the gangue in the ore;

[0056] Step 3: Next, when the ore falls on one end of the conveyor belt, it is detected for gangue by the X-ray detector at one end. The mechanical gripper is used to grab the gangue. When the ore moves to the other end of the conveyor belt with the conveyor belt, it is detected for gangue again by the X-ray detector at the other end. By the operation of the hydraulic cylinder, the connecting rod is pushed to move. The connecting rod pushes the movable block upward, so that the gangue on the conveyor belt enters the inner cavity of the aggregate box through the through groove, improving the effect and efficiency of ore sorting.

[0057] Technical effects and advantages of the present invention:

[0058] (1) With the cooperation of the fixed disk, fixed shaft, installation groove, movable groove, arc groove, movable plate, connecting shaft I and partition plate in the present invention, the two fixed disks are driven to rotate together by the fixed shaft. The installation groove squeezes one end of the connecting shaft I, so that the connecting shaft I drives the movable plate to move in the vertical direction. One of the connecting shaft I enters the inner cavity of the movable groove from the installation groove, and the other connecting shaft I enters the inner cavity of the arc groove from the installation groove, relieving the extrusion of the connecting shaft I and limiting one end of the connecting shaft I to ensure the stability of the movable plate, so that there is a time difference between the rising and falling of the movable plate, driving the two movable plates to alternately lift and lower in the vertical direction, separating and conveying the ore between the partition plates, which is convenient for sorting the gangue in the ore;

[0059] (2) With the cooperation of the hydraulic cylinder, connecting rod, movable block, conveyor belt and aggregate box in the present invention, by the operation of the hydraulic cylinder, the fixed seat and one end of the connecting rod are driven to move together. The two ends of the connecting rod rotate around the connecting shaft II. As the connecting rod moves, the other end of the connecting rod pushes the movable block to rotate and open around the installation shaft, so that the ore at one end of the conveyor belt falls downward from the inner cavity of the groove and enters the inner cavity of the aggregate box, which is convenient for cleaning the gangue in the ore;

[0060] (3) With the cooperation of the rotating shaft, fixed plate, partition plate and fixed block in the present invention, by the operation of the driving motor, the rotating shaft and multiple fixed plates are driven to rotate. The fixed plates push the ore in the inner cavity of the feeding port, so that the ore enters between the multiple partition plates respectively. The inner cavity at one end of the feeding port is separated into multiple blanking channels by the multiple partition plates, and the ore is separated into multiple channels for conveying. Description of the drawings

[0061] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0062] Figure 2 It is a schematic diagram of the structure at the feeding port of the present invention.

[0063] Figure 3 It is a schematic diagram of the side sectional structure at the feeding port of the present invention.

[0064] Figure 4 This is a schematic structural diagram of the movable plate part of the present invention.

[0065] Figure 5 This is a schematic side view structural diagram of the fixed disk part of the present invention.

[0066] Figure 6 This is a schematic side view structural diagram of the fixed plate part of the present invention.

[0067] Figure 7 This is a schematic side sectional view structural diagram of the blanking plate part of the present invention.

[0068] Figure 8 This is the present invention Figure 7 Schematic enlarged structural diagram of part A.

[0069] In the figure: 1, feed inlet; 2, conveyor belt; 3, mechanical gripper; 4, X-ray detector; 5, blanking mechanism; 51, partition plate; 52, rotating shaft; 53, sleeve; 54, fixed plate; 55, fixed block; 56, drive motor; 6, partitioning mechanism; 61, fixed disk; 62, fixed shaft; 63, mounting groove; 64, movable groove; 65, arc groove; 66, movable plate; 67, connecting shaft one; 68, limit block; 69, limit rod; 610, connecting block one; 7, drive mechanism; 71, first bevel gear; 72, second bevel gear; 73, fixed rod; 74, mounting seat; 75, protective shell; 76, pulley; 77, transmission belt; 8, blanking mechanism; 81, blanking plate; 82, aggregate box; 83, through groove; 84, movable block; 85, mounting shaft; 86, connecting block two; 87, connecting rod; 88, connecting shaft two; 89, hydraulic cylinder; 810, fixed seat; 9, fixed frame. Specific embodiments

[0070] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0071] The present invention provides as Figures 1-8A gangue picking device applicable to a coal preparation plant, as shown, includes a feed inlet 1, a conveyor belt 2, a blanking mechanism 5, a separation mechanism 6, a driving mechanism 7 and a discharging mechanism 8. The bottom of one end of the feed inlet 1 is inclined to facilitate the downward sliding of ores. One end of the conveyor belt 2 is arranged below one end of the feed inlet 1. The conveyor belt 2 rotates through the operation of a motor and a rotating roller. The ores in the inner cavity of the feed inlet 1 fall on the upper surface of one end of the conveyor belt 2. As the conveyor belt 2 runs, the ores are driven to move to the other end of the conveyor belt 2. The blanking mechanism 5 is arranged in the inner cavity of the feed inlet 1. The blanking mechanism 5 is used for feeding and conveying minerals. The ores in the inner cavity of the feed inlet 1 are separated by the blanking mechanism 5, so that the ores are conveyed along the separation channel. The separation mechanism 6 is arranged at one end of the inner cavity of the feed inlet 1. The separation mechanism 6 is used for separating and conveying ores. The ores conveyed in a piled-up manner are separated by the separation mechanism 6 to facilitate the sorting of gangue in the ores. The driving mechanism 7 is arranged on the feed inlet 1. The driving mechanism 7 is used for driving the blanking mechanism 5 and the separation mechanism 6 to move. The blanking mechanism 5 and the separation mechanism 6 are driven by the driving mechanism 7 to facilitate the work of the blanking mechanism 5 and the separation mechanism 6. The discharging mechanism 8 is arranged at the other end of the conveyor belt 2. The discharging mechanism 8 is used for discharging the ores on the conveyor belt 2. The ores are separated again by the discharging mechanism 8 to facilitate the sorting of the ores.

[0072] Specifically, the blanking mechanism 5 includes a partition plate 51, a rotating shaft 52, a sleeve 53, a fixing plate 54, a fixing block 55 and a driving motor 56. The lower surface of the partition plate 51 is fixedly connected to the bottom of the inner wall of one end of the feed inlet 1. The partition plates 51 are arranged in a straight line at equal intervals. One end of the partition plate 51 is tapered. The inner cavity of one end of the feed inlet 1 is divided into multiple blanking channels by the plurality of partition plates 51, and the ore is divided into multiple channels for conveying. The two ends of the rotating shaft 52 are rotatably inserted through the two sides of the other end of the feed inlet 1. The rotating shaft 52 is used to install the fixing plate 54 and drive the fixing plate 54 to rotate. The sleeve 53 is arranged in the inner cavity of the feed inlet 1. The sleeve 53 is fixedly inserted through the middle of the rotating shaft 52. The sleeve 53 is used to connect the fixing plate 54, so that the plurality of fixing plates 54 rotate around the rotating shaft 52. One end of the fixing plate 54 is fixedly connected to the outer wall of the sleeve 53. The fixing plates 54 are arranged in an annular array at equal intervals. By rotating the fixing plate 54, the ore in the inner cavity of one end of the feed inlet 1 is pushed towards the other end, facilitating the ore to fall between the plurality of partition plates 51. The fixing block 55 is fixedly connected to the other end of the fixing plate 54. The fixing block 55 is triangular in shape. The fixing block 55 rotates together with the fixing plate 54, which is convenient for pushing the ore. The driving motor 56 is arranged on one side of the outer wall of the feed inlet 1. The driving motor 56 is electrically connected to an external power source through an externally connected first switch. By operating the driving motor 56, the rotating shaft 52 and the plurality of fixing plates 54 are driven to rotate. The fixing plates 54 push the ore in the inner cavity of the feed inlet 1, so that the ore enters between the plurality of partition plates 51 respectively. The inner cavity of one end of the feed inlet 1 is divided into multiple blanking channels by the plurality of partition plates 51, and the ore is divided into multiple channels for conveying.

[0073] Further, the separating mechanism 6 includes a fixed disk 61, a fixed shaft 62, a mounting groove 63, a movable groove 64, an arc-shaped groove 65, a movable plate 66, a first connecting shaft 67, a limiting block 68, a limiting rod 69, and a first connecting block 610. The fixed disk 61 is arranged on both sides of the inner cavity of the feeding port 1, and the fixed disk 61 rotates on both sides of the inner cavity of the feeding port 1. One end of the fixed shaft 62 is fixedly inserted and connected to the middle of the fixed disk 61, and both ends of the fixed shaft 62 are rotatably inserted and connected to both sides of the feeding port 1. The two fixed disks 61 are driven by the fixed shaft 62 to rotate in the inner cavity of the feeding port 1, driving the movable plate 66 to move. One end of one of the fixed shafts 62 is in transmission connection with the output end of the driving motor 56, and the driving motor 56 is used to drive one of the fixed shafts 62 to rotate. The mounting groove 63 is arranged on one side of the fixed disk 61, and the mounting groove 63 is arranged in a vertical straight line and symmetrically arranged on both sides of the fixed disk 61. As the fixed disk 61 rotates, the mounting groove 63 drives the extrusion of one end of the first connecting shaft 67. The movable groove 64 is arranged at the top and bottom of one side of the fixed disk 61, and the movable groove 64 is arranged in an arc shape and is arranged at both ends of the mounting groove 63. As the fixed disk 61 rotates, when the movable groove 64 rotates to one end of the first connecting shaft 67, the first connecting shaft 67 and the movable groove 64 move along the same center of the circle, releasing the extrusion of the first connecting shaft 67 and limiting one end of the first connecting shaft 67 to ensure the stability of the movable plate 66, so that there is a time difference in the rising and falling of the movable plate 66. The arc-shaped groove 65 is arranged in the middle of the mounting groove 63, and the arc-shaped groove 65 is arranged in an arc shape. As the fixed disk 61 rotates, when the arc-shaped groove 65 rotates to one end of the first connecting shaft 67, the first connecting shaft 67 and the arc-shaped groove 65 move along the same center of the circle, releasing the extrusion of the first connecting shaft 67 and limiting one end of the first connecting shaft 67 to ensure the stability of the movable plate 66, so that there is a time difference in the rising and falling of the movable plate 66. The movable plate 66 is arranged in the inner cavity of the feeding port 1, and the outer wall of the movable plate 66 is attached to the outer wall of the partition plate 51. Multiple movable plates 66 slide between the partition plates 51 to block the ore falling between the partition plates 51 and play a role in separating the ore. As the fixed disk 61 rotates, one end of the first connecting shaft 67 sequentially passes through the inner cavities of the mounting groove 63 on one side, the movable groove 64, the mounting groove 63 on the other side, and the arc-shaped groove 65. A closed loop is formed between the mounting groove 63, the movable groove 64, and the arc-shaped groove 65. When one end of the first connecting shaft 67 moves in the inner cavity of the mounting groove 63, the inner wall of the mounting groove 63 extrudes the first connecting shaft 67, driving the first connecting shaft 67 and the movable plate 66 to move vertically. When one end of the first connecting shaft 67 moves in the inner cavities of the movable groove 64 and the arc-shaped groove 65, the inner wall limits one end of the first connecting shaft 67 so that it cannot move, resulting in a time difference in the lifting and lowering movements of the two movable plates 66, facilitating the separation of the ore. The first connecting shaft 67 is fixedly inserted and connected to the top of the movable plate 66, and one end of the first connecting shaft 67 is slidably inserted and connected to the inner cavity of the mounting groove 63.A plurality of movable plates 66 are connected by a first connecting shaft 67 to drive the plurality of movable plates 66 to move together. Both ends of the limiting block 68 are fixedly connected to the inner wall of the feeding port 1 and the outer wall of the partition plate 51. The limiting block 68 is slidably inserted and connected to one end of the movable plate 66 to limit the movement of the movable plate 66 by using the limiting block 68. The bottom of the limiting rod 69 is slidably inserted and connected to the middle of the limiting block 68. The limiting rod 69 moves in the vertical direction along with the movable plate 66, and the bottom slides on the limiting block 68 to ensure the stable movement of the movable plate 66. The lower surface of the first connecting block 610 is fixedly connected to the top end of the limiting rod 69. One end of the first connecting block 610 is fixedly connected to the top of the front surface of the movable plate 66. The limiting rod 69 is fixedly connected to the movable plate 66 through the first connecting block 610. The two fixed disks 61 are driven to rotate together by the fixed shaft 62. The installation groove 63 presses against one end of the first connecting shaft 67, so that the first connecting shaft 67 drives the movable plate 66 to move in the vertical direction. One of the first connecting shafts 67 enters the inner cavity of the movable groove 64 from the installation groove 63, and the other first connecting shaft 67 enters the inner cavity of the arc groove 65 from the installation groove 63. The extrusion on the first connecting shaft 67 is released, and one end of the first connecting shaft 67 is limited to ensure the stability of the movable plate 66, so that there is a time difference between the rising and falling of the movable plate 66, driving the two movable plates 66 to alternately lift and lower in the vertical direction, separating and conveying the ore between the partition plates 51, and facilitating the sorting of the gangue in the ore.

[0074] In particular, the driving mechanism 7 includes a first bevel gear 71, a second bevel gear 72, a fixed rod 73, a mounting seat 74, a protective housing 75, a pulley 76 and a transmission belt 77. The middle part of the first bevel gear 71 is fixedly inserted and connected to one end of the fixed shaft 62, and the first bevel gear 71 rotates together with the fixed shaft 62. The second bevel gear 72 is meshed and connected to one side of the first bevel gear 71. By the meshing action of the first bevel gear 71 and the second bevel gear 72, the first bevel gear 71 drives the second bevel gear 72 to rotate together. One end of the fixed rod 73 is fixedly inserted and connected to the middle part of the second bevel gear 72, and the fixed rod 73 is used to drive the two second bevel gears 72 to rotate together. Through the cooperation between the first bevel gear 71 and the second bevel gear 72, the two fixed shafts 62 drive the fixed disk 61 to rotate together. The mounting seat 74 is rotatably inserted and connected to one end of the fixed rod 73, and one end of the mounting seat 74 is fixedly connected to the inner wall of the protective housing 75. The protective housing 75 is fixedly connected to one side of the outer wall of the feed inlet 1. The protective housing 75 is arranged outside the first bevel gear 71 and the second bevel gear 72. The pulleys 76 are respectively fixedly inserted and connected to one ends of the rotating shaft 52 and the fixed shaft 62. One of the fixed shafts 62 is connected to the rotating shaft 52 through the pulley 76 and the transmission belt 77. The driving motor 56 is used to drive one of the fixed shafts 62 and the pulley 76 to rotate, and the transmission belt 77 and the other pulley 76 are used to drive the rotating shaft 52 to rotate together. The pulley 76 is arranged in the inner cavity of the protective housing 75, and the transmission belt 77 is arranged between the pulleys 76. The transmission belt 77 is used to drive the pulley 76 to rotate.

[0075] Furthermore, the unloading mechanism 8 includes an unloading plate 81, a collection box 82, a through groove 83, a movable block 84, a groove, a mounting shaft 85, a connecting block 86, a connecting rod 87, a connecting shaft 88, a hydraulic cylinder 89 and a fixed seat 810. The unloading plate 81 is arranged at the other end of the conveyor belt 2. The unloading plate 81 is arranged at an angle. The ore on the upper surface of the conveyor belt 2 moves to the position of the unloading plate 81 and slides down along the surface of the unloading plate 81. One end of the collection box 82 is fixedly connected to the inner side wall of the unloading plate 81. The collection box 82 is arranged below the conveyor belt 2. The through groove 83 is arranged at the top of one end of the collection box 82. The through groove 83 is used to The ore falls into the inner cavity of the collecting box 82, and the movable block 84 is slidably interlaced with the top of the blanking plate 81. The movable blocks 84 are arranged in a straight line and equidistantly. The groove is set at the top of the blanking plate 81. The inner cavity of the groove is slidably interlaced with the movable block 84. The mounting shaft 85 is fixedly interlaced with one end of the movable block 84, and one end of the mounting shaft 85 is rotationally interlaced with one side of the inner wall of the groove. One end of the movable block 84 is rotatably connected with the inner wall of the groove through the mounting shaft 85, so that the movable block 84 rotates around the mounting shaft 85, which facilitates the opening and closing of the movable block 84. The upper surface of the connecting block 86 is fixedly connected to the lower surface of the movable block 84. The connecting block The second 86 is used to connect the movable block 84 and one end of the connecting rod 87. The connecting rod 87 is arranged below the movable block 84. The connecting shaft 88 is fixedly connected to one end of the connecting rod 87. One end of one of the connecting shafts 88 is rotatably connected to the connecting block 86. One end of the connecting rod 87 is rotatably connected to the connecting block 86 through the connecting shaft 88, and is used to drive the movable block 84 to rotate. The hydraulic cylinder 89 is fixedly connected to the inner wall of the blanking plate 81. The hydraulic cylinder 89 is electrically connected to the external power supply through an external second switch. The fixed seat 810 is transmission-connected to the output end of the hydraulic cylinder 89. The fixed seat 810 is connected to another The second connecting shaft 88 is rotatably connected, and the other end of the connecting rod 87 is rotatably connected to the fixed seat 810 through the second connecting shaft 88. The fixed seat 810 moves together with the output end of the hydraulic cylinder 89. Through the operation of the hydraulic cylinder 89, the fixed seat 810 and one end of the connecting rod 87 are driven to move together. The two ends of the connecting rod 87 rotate around the second connecting shaft 88. As the connecting rod 87 moves, the other end of the connecting rod 87 pushes the movable block 84 upward to rotate and open around the mounting shaft 85, so that the ore at one end of the conveyor belt 2 falls downward from the inner cavity of the groove and enters the inner cavity of the aggregate box 82, which is convenient for cleaning the gangue in the ore.

[0076] On one side of the conveyor belt 2, a mechanical gripper 3 is provided. The mechanical gripper 3 is electrically connected to an external power supply through an externally connected third switch. The mechanical gripper 3 is used to grab and sort the gangue on the conveyor belt 2. Above both ends of the conveyor belt 2, X-ray detectors 4 are provided. The X-ray detectors 4 are used to detect the gangue mixed in the coal mine. The X-ray detector 4 at one end of the conveyor belt 2 is connected to the mechanical gripper 3 to detect the ore falling from the feed inlet 1. The X-ray detector 4 at the other end of the conveyor belt 2 is connected to the hydraulic cylinder 89 to detect the ore after the initial sorting again. Fixed frames 9 are fixedly installed at both ends of the conveyor belt 2. The fixed frames 9 are fixedly installed with the X-ray detectors 4. Through the fixed frames 9, multiple X-ray detectors 4 are respectively installed above both ends of the conveyor belt 2.

[0077] Usage method of the present invention:

[0078] First, by adding the ore to be sorted into the inner cavity of the feed inlet 1, using the operation of the drive motor 56 to drive the belt pulley 76 and the rotating shaft 52 to rotate. The rotating shaft 52 drives multiple fixing plates 54 and fixing blocks 55 to rotate together. The fixing plates 54 and the fixing blocks 55 push the ore, so that the ore enters between multiple partition plates 51 for separated conveying of the ore.

[0079] Then, through the operation of the drive motor 56, one of the fixed shafts 62 and the first bevel gear 71 are driven to rotate. Using the meshing effect of the first bevel gear 71 and the second bevel gear 72, the fixed shaft 62 and the fixed disk 61 rotate together. As the fixed disk 61 rotates, the inner wall of one end of the installation groove 63 presses against one end of the connecting shaft one 67, pushing the two movable plates 66 to move alternately in the vertical direction. The movable plates 66 separate the ore between the partition plates 51, so that the ore separates and falls on the upper surface of the conveyor belt 2, facilitating the sorting of the gangue in the ore.

[0080] Next, when the ore falls at one end of the conveyor belt 2, it is detected for gangue by the X-ray detector 4 at one end. The mechanical gripper 3 is used to grab the gangue. When the ore moves to the other end of the conveyor belt 2 and is detected for gangue again by the X-ray detector 4, using the operation of the hydraulic cylinder 89 to push the connecting rod 87 to move. The connecting rod 87 pushes the movable block 84 upward, so that the gangue on the conveyor belt 2 enters the inner cavity of the aggregate box 82 through the through groove 83, improving the sorting effect and efficiency of the ore.

[0081] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A gangue picking device suitable for a coal preparation plant, comprising: Feed inlet (1); A conveyor belt (2), one end of which is arranged below one end of the feed port (1); It is characterized in that it also comprises a material dropping mechanism (5), wherein the material dropping mechanism (5) is arranged in the inner cavity of the feed port (1), and the material dropping mechanism (5) is used for feeding and conveying the mineral; A separation mechanism (6), the separation mechanism (6) being arranged at one end of the inner cavity of the feed port (1), and the separation mechanism (6) being used for separating and transporting the ore; A driving mechanism (7), wherein the driving mechanism (7) is arranged on the feed port (1), and the driving mechanism (7) is used to drive the blanking mechanism (5) and the separation mechanism (6) to move; A material discharge mechanism (8), wherein the material discharge mechanism (8) is arranged at the other end of the conveyor belt (2), and the material discharge mechanism (8) is used to discharge the ore on the conveyor belt (2).

2. A gangue picking device suitable for a coal preparation plant according to claim 1, characterized in that: The blanking mechanism (5) comprises: A partition plate (51), the lower surface of which is fixedly connected to the bottom of the inner wall at one end of the feed inlet (1), and the partition plates (51) are arranged in a straight line and at equal distances; A rotating shaft (52), wherein two ends of the rotating shaft (52) are rotatably interlaced with two sides of the other end of the feed port (1); A sleeve (53), the sleeve (53) being arranged in the inner cavity of the feed port (1), and the sleeve (53) being fixedly interpenetratingly connected with the middle portion of the rotating shaft (52); A fixing plate (54), one end of which is fixedly connected to the outer wall of the sleeve (53), and the fixing plates (54) are arranged in an annular array at equal distances; A fixing block (55), the fixing block (55) being fixedly connected to the other end of the fixing plate (54), the fixing block (55) being arranged in a triangular shape; A driving motor (56) is arranged on one side of the outer wall of the feed port (1).

3. A gangue picking device suitable for a coal preparation plant according to claim 2, characterized in that: The partition mechanism (6) comprises: A fixed plate (61), wherein the fixed plate (61) is arranged on both sides of the inner cavity of the feed port (1); A fixed shaft (62), one end of the fixed shaft (62) is fixedly interpenetratingly connected to the middle of the fixed disk (61), and both ends of the fixed shaft (62) are rotatably interpenetratingly connected to both sides of the feed port (1); A mounting groove (63), wherein the mounting groove (63) is arranged on one side of the fixing plate (61), and the mounting groove (63) is arranged in a vertical straight line; A movable groove (64), the movable groove (64) being arranged at the top and the bottom of one side of the fixed plate (61), and the movable groove (64) being arranged at both ends of the mounting groove (63); An arc-shaped groove (65), wherein the arc-shaped groove (65) is arranged in the middle of the mounting groove (63), and the arc-shaped groove (65) is arranged in an arc shape.

4. A gangue picking device suitable for a coal preparation plant according to claim 3, characterized in that: The partition mechanism (6) further comprises: A movable plate (66), the movable plate (66) being arranged in the inner cavity of the feed port (1), the outer wall of the movable plate (66) being in contact with the outer wall of the partition plate (51); A connecting shaft (67), wherein the connecting shaft (67) is fixedly connected to the top of the movable plate (66), and one end of the connecting shaft (67) is slidably connected to the inner cavity of the mounting groove (63); A limit block (68), the two ends of which are fixedly connected to the inner wall of the feed port (1) and the outer wall of the partition plate (51), and the limit block (68) is slidably connected to one end of the movable plate (66); A limiting rod (69), the bottom of which is slidably interlaced with the middle of the limiting block (68); A connecting block (610), wherein the lower surface of the connecting block (610) is fixedly connected to the top of the limiting rod (69), and one end of the connecting block (610) is fixedly connected to the top of the front side of the movable plate (66).

5. A gangue picking device suitable for a coal preparation plant according to claim 4, characterized in that: The driving mechanism (7) comprises: A first bevel gear (71), wherein a middle portion of the first bevel gear (71) is fixedly inserted and connected to one end of a fixed shaft (62); A second bevel gear (72), the second bevel gear (72) being meshedly connected with one side of the first bevel gear (71); A fixing rod (73), one end of which is fixedly inserted and connected to the middle part of the second bevel gear (72); A mounting seat (74) is rotatably interlaced with one end of the fixing rod (73).

6. A gangue picking device suitable for a coal preparation plant according to claim 5, characterized in that: The driving mechanism (7) further comprises: A protective shell (75), the protective shell (75) being fixedly connected to one side of the outer wall of the feed port (1), and the protective shell (75) being arranged outside the first bevel gear (71) and the second bevel gear (72); A pulley (76), the pulley (76) being fixedly connected to one end of the rotating shaft (52) and the fixed shaft (62), respectively, and the pulley (76) being arranged in the inner cavity of the protective shell (75); A transmission belt (77), wherein the transmission belt (77) is arranged between the pulleys (76), and the transmission belt (77) is used to drive the pulleys (76) to rotate.

7. A gangue picking device suitable for a coal preparation plant according to claim 6, characterized in that: The unloading mechanism (8) comprises: A blanking plate (81), the blanking plate (81) being arranged at the other end of the conveyor belt (2), the blanking plate (81) being arranged in an inclined manner; A material collecting box (82), one end of which is fixedly connected to the inner wall of the unloading plate (81), and the material collecting box (82) is arranged below the conveyor belt (2); A through groove (83), the through groove (83) being arranged at the top of one end of the aggregate box (82), the through groove (83) being used for the ore to fall into the inner cavity of the aggregate box (82); Movable blocks (84), the movable blocks (84) are slidably connected with the top of the blanking plate (81), and the movable blocks (84) are arranged in a straight line and at equal distances; A groove, the groove being arranged on the top of the blanking plate (81), the inner cavity of the groove being slidably interlaced with the movable block (84); An installation shaft (85) is fixedly inserted and connected with one end of the movable block (84), and one end of the installation shaft (85) is rotatably inserted and connected with one side of the inner wall of the groove.

8. A gangue picking device suitable for a coal preparation plant according to claim 7, characterized in that: The unloading mechanism (8) further comprises: A second connecting block (86), the upper surface of the second connecting block (86) being fixedly connected to the lower surface of the movable block (84); A connecting rod (87), wherein the connecting rod (87) is disposed below the movable block (84); A second connecting shaft (88), wherein the second connecting shaft (88) is fixedly interpenetratingly connected to one end of the connecting rod (87), and one end of the second connecting shaft (88) is rotatably interpenetratingly connected to the second connecting block (86); A hydraulic cylinder (89), wherein the hydraulic cylinder (89) is fixedly connected to the inner side wall of the blanking plate (81); A fixed seat (810), wherein the fixed seat (810) is transmission-connected to the output end of the hydraulic cylinder (89), and the fixed seat (810) is rotationally interlacedly connected to another connecting shaft 2 (88).

9. A gangue picking device suitable for a coal preparation plant according to claim 8, characterized in that: A mechanical gripper (3) is provided on one side of the conveyor belt (2), an X-ray detector (4) is provided above both ends of the conveyor belt (2), and a fixing frame (9) is fixedly installed at both ends of the conveyor belt (2), and the fixing frame (9) is fixedly installed with the X-ray detector (4).

10. A method for using a gangue picking device suitable for a coal preparation plant, characterized in that: The specific usage steps are as follows: Step 1: First, the ore to be sorted is added into the inner cavity of the feed port (1), and the drive motor (56) is operated to drive the pulley (76) and the rotating shaft (52) to rotate, and the rotating shaft (52) drives the plurality of fixed plates (54) and the fixed blocks (55) to rotate together, and the fixed plates (54) and the fixed blocks (55) push the ore, so that the ore enters between the plurality of partition plates (51), and the ore is separated and transported; Step 2: Then, by driving the driving motor (56), one of the fixed shafts (62) and the first bevel gear (71) is driven to rotate, and the meshing action of the first bevel gear (71) and the second bevel gear (72) is utilized to make the fixed shaft (62) and the fixed plate (61) rotate together. As the fixed plate (61) rotates, the inner wall of one end of the mounting groove (63) presses one end of the connecting shaft (67), pushing the two movable plates (66) to move alternately in the vertical direction. The movable plates (66) separate the ore between the partition plates (51), so that the ore is separated and falls on the upper surface of the conveyor belt (2), which is convenient for sorting the gangue in the ore; Step 3: Then, when the ore falls on one end of the conveyor belt (2), the gangue is detected by the X-ray detector (4) at one end, and the gangue is grabbed by the mechanical gripper (3). When the ore moves along the conveyor belt (2) to the other end of the X-ray detector (4), the gangue is detected again. The hydraulic cylinder (89) is used to push the connecting rod (87) to move, and the connecting rod (87) pushes the movable block (84) upward, so that the gangue on the conveyor belt (2) enters the inner cavity of the aggregate box (82) through the through groove (83), thereby improving the effect and efficiency of ore sorting.

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