Coal gangue sorting device

Abstract

The present application relates to the technical field of gangue sorting, and particularly relates to a coal gangue sorting device, which comprises a conveying belt, a shooting device for color recognition of materials is arranged on the conveying belt, a vibrating feeder for uniformly distributing materials on the conveying belt is arranged at one end of the conveying belt, a rejection device for rejecting gangue is arranged at the end of the conveying belt, and material arranging device one, a material blocking device one, material arranging device two and a material blocking device two are sequentially arranged on the conveying belt along the material conveying direction. The present application has the beneficial effect that: the material belt is first separated into vertical rows with equal intervals by the material arranging device one, and then the vertical row of materials is divided into two by the material arranging device two, so that the arrangement number of materials in each row of materials is controlled, the stacking arrangement number of materials in each row of materials is reduced, the subsequent shooting device is facilitated to shoot and color select the materials, the rejection device is facilitated to reject the gangue, and the purpose of improving the sorting rate is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of gangue sorting, and particularly relates to a coal gangue sorting device. BACKGROUND

[0002] When coal gangue is sorted, the previous manual screening has been difficult to meet the actual production demand, so there are many forms such as jigging method, coal washing method, color selection method and the like for the screening of gangue. When the gangue is color selected, the image recognition equipment is used for shooting. Since the gangue is gray and the coal is black, after the image recognition equipment is recognized, when the material falls from one end of the conveying belt, the gangue is removed through the removing device. The removing device usually adopts the way of the elastic plate or air blowing to remove the gangue. When the material is sorted through the color selection method, if the material is conveyed in rows, it is more convenient for the color selection device to color select and remove the material compared with the relatively disorderly material. Then, how to convey the coal gangue in parallel and equidistantly becomes an important link to improve the sorting rate.

[0003] Therefore, the application discloses a kind of sorting equipment for coal gangue provided in the publication No.CN111842185B, and the reciprocating movement of baffle is used to accumulate material into row, to facilitate subsequent color selection work, but the above scheme still has certain problems, the above technical scheme can indeed separate material into equidistant arrangement, but multiple pieces of material are distributed in each row of material, that is, multiple rows of material are actually accumulated together to form a row, which still has certain influence on the sorting of material.

[0004] Therefore, a coal gangue sorting device is needed to overcome the occurrence of the above problems. SUMMARY

[0005] In order to solve the above problems, the present application provides a coal gangue sorting device, which realizes the purpose of solving the problems proposed in the background art.

[0006] The present application discloses a coal gangue sorting device, which comprises a conveying belt, a shooting device for color recognition of materials is arranged on the conveying belt, a vibrating feeder for uniformly distributing the materials on the conveying belt is arranged at one end of the conveying belt, a rejecting device for rejecting the gangue is arranged at the end of the conveying belt, a material collecting bin one for collecting the coal and a material collecting bin two for collecting the gangue are arranged at the end of the conveying belt, an aligning device one for aligning the materials into rows, a material blocking device one for blocking and cleaning the materials, an aligning device two for dividing the aligned materials into two rows and a material blocking device two for blocking and cleaning the aligned materials are sequentially arranged on the conveying belt along the material conveying direction, the aligning device one comprises a cylinder one mounted on both sides of the conveying belt, a frame one mounted on the cylinder one, a cylinder two mounted on the top of the frame one and a material fork mounted on the cylinder two, the aligning device one has the same structure as the aligning device two, the material blocking device one comprises a frame two fixedly connected to both sides of the conveying belt, a shell rotatably arranged in the frame two, a motor one for driving the shell to rotate along the material conveying direction, a movable block slidably arranged in the shell, a driving structure arranged on the shell for driving the movable block to move linearly back and forth, a brush fixedly connected to the bottom of the movable block and a baffle fixedly connected to one side of the shell, a notch adapted to the material fork is formed in the baffle, the material blocking device one has the same structure as the material blocking device two.

[0007] As a further improvement of the above technical solution:

[0008] The driving structure comprises a motor two mounted on the top of the shell, a connecting disc fixedly connected to the output end of the motor two, a connecting rod eccentrically hinged to the connecting disc, and the other end of the connecting rod is hinged to one end of the movable block.

[0009] A dust suction hole between the brushes is formed in the bottom of the movable block, a dust suction pipe connected to the dust suction hole is fixedly connected to the top of the movable block, and a waist hole adapted to the dust suction pipe is formed in the shell.

[0010] A sliding groove is formed in the inside of the shell, and a pulley slidably arranged in the sliding groove is arranged on both sides of the movable block.

[0011] The present application has the following beneficial effects:

[0012] The present application first separates the material belt into vertical rows with equal intervals by the aligning device one, and then divides the vertical material into two rows by the aligning device two, so that the number of arranged materials in each row is controlled, the number of stacked rows of materials in each row is reduced, the subsequent shooting device is facilitated to shoot the materials for color selection, the rejecting device is facilitated to reject the gangue, and the sorting rate is improved.

[0013] The application blocks the material through the material blocking device one and the material blocking device two, and the top of the material can be cleaned at the same time, so that the shooting device is more accurate in identifying the gangue, and the separation rate is further improved;

[0014] The driving structure of the material blocking device one and the driving structure of the material blocking device two are started, so as to drive the movable block of the material blocking device one and the movable block of the material blocking device two to reciprocate linearly, and the top of the material below is cleaned by the bristles. Since the gangue and coal are mixed together, the coal powder on the coal adheres to the gangue, and the color of the coal powder is the same as that of the coal, that is, black. When the coal powder adheres to the gangue, the color of the gangue changes to gray and black, which affects the color recognition of the shooting device on the material. Therefore, the top of the material is cleaned by the bristles. When the shooting device identifies the material, it is usually shot from above, that is, only the top of the material is shot, that is, the color of the top of the material directly determines the identification of the shooting device, and other parts of the material have no direct influence on color selection. Therefore, the top of the material is cleaned by the bristles, which meets the color recognition requirement and avoids resource waste caused by excessive cleaning. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the first perspective of the application;

[0016] Figure 2 It is a structure schematic view of the second perspective of the application;

[0017] Figure 3 It is a structure schematic view of the whole material device one;

[0018] Figure 4 It is a structure schematic view of the first perspective of the material blocking device one;

[0019] Figure 5 It is a structure schematic view of the second perspective of the material blocking device one;

[0020] Figure 6 It is a sectional view schematic view of the material blocking device one;

[0021] Figure 7 It is a sectional view schematic view of the movable block;

[0022] Figure 8 It is a distribution schematic view of the material in the prior art;

[0023] Figure 9 It is a structure schematic view of the distribution of the material in the application.

[0024] Fig. 1, conveying belt; 2, shooting device; 3, rejection device; 4, material collecting bin one; 5, material collecting bin two; 6, vibrating feeder; 7, material aligning device one; 71, air cylinder one; 72, frame one; 73, air cylinder two; 74, material fork; 8, material blocking device one; 81, frame two; 82, shell; 83, motor one; 84, movable block; 85, driving structure; 851, motor two; 852, connecting disc; 853, connecting rod; 86, brush; 87, baffle; 88, notch; 89, dust suction hole; 810, dust suction pipe; 811, waist hole; 812, chute; 813, pulley; 9, material aligning device two; 10, material blocking device two. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. Those skilled in the art will understand that these embodiments are only used to explain the technical principles of the present application, and are not intended to limit the protection scope of the present application.

[0026] Reference Figures 1 to 8 The present application discloses a coal gangue sorting device, which comprises a conveying belt 1, a shooting device 2 for color recognition of materials is arranged on the conveying belt 1, a vibrating feeder 6 for uniformly distributing the materials on the conveying belt 1 is arranged at one end of the conveying belt 1, a rejection device 3 for rejecting gangue is arranged at the end of the conveying belt 1, a material collecting bin one 4 for collecting coal and a material collecting bin two 5 for collecting gangue are further arranged at the end of the conveying belt 1, a material aligning device one 7 for aligning the materials into rows, a material blocking device one 8 for blocking and cleaning the materials, a material aligning device two 9 for dividing the aligned materials into two rows, and a material blocking device two 10 for blocking and cleaning the aligned materials are sequentially arranged on the conveying belt 1 along the material conveying direction;

[0027] When sorting the materials, the materials that have been subjected to primary crushing are added to the vibrating feeder 6, the particle size of the materials subjected to primary crushing is required to be 50mm-100mm, when passing through the vibrating feeder 6, the vibrating feeder 6 screens the materials, thereby screening out the materials with a particle size less than 5mm, and then the materials are uniformly distributed on the conveying belt 1 through vibration;

[0028] The material aligning device one 7 comprises air cylinders one 71 installed on both sides of the conveying belt 1, a frame one 72 installed on the air cylinders one 71, an air cylinder two 73 installed on the top of the frame one 72, and a material fork 74 installed on the air cylinder two 73; the structure of the material aligning device one 7 is the same as that of the material aligning device two 9;

[0029] When the material passes through the material arranging device one 7, the cylinder two 73 of the material arranging device one 7 is actuated to extend, so that the fork 74 moves downward, after the fork 74 is inserted into the material belt, the cylinder one 71 of the material arranging device one 7 is actuated to extend, so that the material is divided into equidistant rows, which is similar to the principle of the sorting equipment for coal gangue provided in CN111842185B, that is, the material can be divided into equidistant rows through reciprocating motion;

[0030] The material blocking device one 8 includes a frame two 81 fixedly connected on both sides of the conveying belt 1, a shell 82 rotatably arranged in the frame two 81, a motor one 83 for driving the shell 82 to rotate along the material conveying direction, a movable block 84 slidably arranged in the shell 82, a driving structure 85 arranged on the shell 82 for driving the movable block 84 to move linearly, a brush 86 fixedly connected to the bottom of the movable block 84, and a baffle 87 fixedly connected to one side of the shell 82; the baffle 87 is provided with a slot 88 matched with the fork 74; the structure of the material blocking device one 8 is the same as that of the material blocking device two 10;

[0031] The material divided into rows continues to move, when the material moves to the material blocking device two 10, the baffle 87 on the material blocking device two 10 blocks the material, at this time, the cylinder one 71 of the material arranging device two 9 is actuated to extend, so that the frame one 72 of the material arranging device two 9 moves close to the material blocking device two 10, then the cylinder two 73 of the material arranging device two 9 is actuated to extend, so that the fork 74 moves downward into the rows of material, then the cylinder one 71 of the material arranging device two 9 is actuated to retract, so that the rows of material are separated into a row, and the row of material is pulled back to the material blocking device one 8, the shell 82 of the material blocking device one 8 is driven to rotate by the motor one 83, so that the baffle 87 rotates, and then the row of material is pulled back to the lower side of the movable block 84;

[0032] The material arranging device one 7 divides the material belt into equidistant vertical rows, the material arranging device one 7 integrates the material belt with a length of 30 cm into a row, at this time, each row of material is formed by 2-3 rows of material;

[0033] When the row of material moves to the material blocking device two 10, the material arranging device two 9 divides the material into two rows, that is, the single row of material is separated into two rows of material, at this time, each row of material is formed by 1-2 rows of material, so as to reduce the number of stacked rows of material in the single row of material;

[0034] As shown in Figure 8 the distribution of the material when the material is integrated into rows by the sorting equipment for coal gangue provided in CN111842185B, as shown in Figure 9 the distribution of the material when the single row of material is divided into two rows by the present application;

[0035] Then the driving structure 85 of the blocking device one 8 and the driving structure 85 of the blocking device two 10 are started, so as to drive the movable block 84 of the blocking device one 8 and the movable block 84 of the blocking device two 10 to move linearly reciprocatingly, so that the top of the material below is cleaned by the brush 86. Because the gangue and the coal are mixed together, the coal powder on the coal adheres to the gangue, and the color of the coal powder is the same as that of the coal, that is, black. When the coal powder adheres to the gangue, the color of the gangue changes to gray and black, thereby affecting the color identification of the shooting device 2 on the material. Therefore, the brush 86 is used to clean the top of the material. When the shooting device 2 shoots and identifies the material, it is usually shot from above the material, that is, only the top of the material is shot, that is, the color of the top of the material directly determines the identification of the shooting device 2, and the other parts of the material have no direct influence on the color selection. Therefore, the brush 86 is used to clean only the top of the material, that is, the demand of color identification is met, and resource waste caused by excessive cleaning is avoided.

[0036] After the material is cleaned, the shell 82 of the blocking device one 8 and the shell 82 of the blocking device two 10 rotate along the material conveying direction, so that the material enters below the shooting device 2 for color shooting. When the material falls from one end of the conveyor belt 1, the gangue is removed by the removing device 3, so that the coal naturally falls into the material collecting bin one 4, and the gangue enters the material collecting bin two 5 under the action of external force. A conveying device can also be arranged below the material collecting bin one 4 and the material collecting bin two 5, so as to convey the material to the required position. The shooting device 2 and the removing device 3 in the application are the same as the color selection technology in the prior art, and can be obtained by market purchase. Therefore, the principle and model of the shooting device 2 and the removing device 3 will not be described further.

[0037] The material belt is first divided into vertical rows with equal intervals by the material arranging device one 7, and then the vertical material rows are divided into two by the material arranging device two 9, so that the arrangement number of the material in each row is controlled, and the stacking number of the material in each row is reduced, thereby facilitating the subsequent shooting device 2 to shoot and select the color of the material, and facilitating the removing device 3 to remove the gangue, so as to improve the separation rate.

[0038] The material is blocked by the blocking device one 8 and the blocking device two 10, and the top of the material is cleaned at the same time, so that the identification of the shooting device 2 on the gangue is more accurate, and the separation rate is further improved.

[0039] The structure and size of the first material arranging device 7 and the second material arranging device 9 are the same, but the functions of the two are different. The first material arranging device 7 is used to separate the material belt into vertical rows with equal intervals, and the second material arranging device 9 is used to separate the vertical rows of material moving to the second material blocking device 10 into two rows, so as to reduce the number of rows of material in a single row. That is, the same device is used to realize two different functions, which is convenient for processing and manufacturing the device in actual production, and is convenient for installation and assembly in actual production.

[0040] The structure and size of the first material blocking device 8 and the second material blocking device 10 are the same, but the functions of the two are different. The second material blocking device 10 is used to block the initial rows of material and clean the top of the material. The first material blocking device 8 is used to block the first row of material after being separated into two rows and clean the top of the material. When the material enters the second material blocking device 10, the second material blocking device 10 does not need to act, and the material can be blocked in the second material blocking device 10. However, when the material enters the first material blocking device 8, the baffle 87 of the first material blocking device 8 needs to act, so as to pull the material back to the first material blocking device 8. Since the structure and size of the first material blocking device 8 and the second material blocking device 10 are the same, the baffle 87 first needs to meet the requirement of normally blocking the material, and secondly, the baffle 87 needs to meet the requirement of pulling the material back to the bottom of the second material blocking device 10. Therefore, a slot 88 is formed on the baffle 87, so that the slot 88 is used in cooperation with the material fork 74, so as to pull the material back to the bottom of the second material blocking device 10.

[0041] Further description of the present application:

[0042] The driving structure 85 includes a second motor 851 mounted on the top of the shell 82, a connecting disc 852 fixedly connected to the output end of the second motor 851, and a connecting rod 853 eccentrically connected to one end of the movable block 84.

[0043] The second motor 851 drives the connecting disc 852 to rotate, so as to drive the movable block 84 to make reciprocating linear motion through the connecting rod 853, so as to clean the top of the material through the brush 86.

[0044] Further description of the present application:

[0045] A dust suction hole 89 is formed in the bottom of the movable block 84 between the brushes 86, and a dust suction pipe 810 is fixedly connected to the top of the movable block 84 and communicates with the dust suction hole 89. The dust suction pipe 810 is a flexible pipe, and a waist hole 811 is formed in the shell 82 and matched with the dust suction pipe 810.

[0046] The dust suction pipe 810 is connected with a negative pressure device, and the coal powder cleaned by the brush 86 is sucked away through the dust suction hole 89 through the negative pressure device. A dust treatment device can be installed at the negative pressure device, so that the coal powder is collected and recycled.

[0047] As a further description of the present application:

[0048] The inner part of the shell 82 is provided with a sliding groove 812, and the two sides of the movable block 84 are provided with sliding wheels 813 sliding in the sliding groove 812. Through the cooperation of the sliding wheel 813 and the sliding groove 812, the sliding of the movable block 84 in the shell 82 is smoother.

[0049] As a further description of the present application:

[0050] In actual use, when the material fork 74 moves downward, it is easy to abut on the material above, so as to crush the material. For coal, the hardness of coal is small, and the material fork 74 can normally crush it, which does not affect the normal downward movement of the material fork 74. Even if the coal is crushed, it does not affect the sorting. For gangue, the hardness of gangue is large, and it is difficult to crush the gangue. At this time, the material fork 74 is easy to be stuck;

[0051] Therefore, in actual use, the lower end of the material fork 74 can be semispherical, so that after the material fork 74 contacts the material, the material can be pushed away;

[0052] The material fork 74 can also be made of rubber material. Under the premise that the material fork 74 can normally push the material to move, the rubber can be deformed, so as to avoid the situation of being stuck;

[0053] The end part of the material fork 74 can also be tapered, and the diameter of the material fork 74 is reduced, so that the material fork 74 can crush the gangue.

[0054] It should be noted that in the description of the present application, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other terms indicating direction or position relationship are based on the direction or position relationship shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0055] In addition, it needs to be explained that in the description of the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0056] The term "comprising" or any other similar word is intended to encompass a non-exclusive inclusion, so that a process, article, or equipment / device including a series of elements includes not only those elements, but also other elements not explicitly listed, or inherent elements of these processes, articles, or equipment / devices.

[0057] So far, the technical solutions of the present application have been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to the related technical features without departing from the principles of the present application, and the technical solutions after these changes or replacements will fall within the protection scope of the present application.

Claims

1. A coal gangue sorting device, comprising a conveyor belt (1), wherein a camera (2) for color recognition of materials is provided on the conveyor belt (1), a vibrating feeder (6) for evenly distributing materials on the conveyor belt (1) is provided at one end of the conveyor belt (1), a removal device (3) for removing gangue is provided at the end of the conveyor belt (1), and a first collection bin (4) for collecting coal and a second collection bin (5) for collecting gangue are also provided at the end of the conveyor belt (1), characterized in that, The conveying belt (1) is sequentially provided with a first material aligning device (7), a first material blocking device (8), a second material aligning device (9) and a second material blocking device (10) along the material conveying direction. The first material aligning device (7) comprises a first cylinder (71) mounted on both sides of the conveying belt (1), a first frame (72) mounted on the first cylinder (71), a second cylinder (73) mounted on the top of the first frame (72), and a material fork (74) mounted on the second cylinder (73). The first material blocking device (8) comprises a second frame (81) fixedly connected to both sides of the conveying belt (1), a housing (82) rotatably arranged in the second frame (81), a first motor (83) for driving the housing (82) to rotate along the material conveying direction, a movable block (84) slidably arranged in the housing (82), a driving structure (85) arranged on the housing (82) for driving the movable block (84) to move linearly, a brush (86) fixedly connected to the bottom of the movable block (84), and a baffle (87) fixedly connected to one side of the housing (82).

2. The coal refuse sorting device of claim 1, wherein, The driving structure (85) comprises a second motor (851) mounted on the top of the housing (82), a connecting disc (852) fixedly connected to the output end of the second motor (851), and a connecting rod (853) eccentrically connected to one end of the connecting disc (852).

3. The coal refuse sorting device of claim 1, wherein, The bottom of the movable block (84) is provided with a dust suction hole (89) between the brushes (86), and the top of the movable block (84) is fixedly connected with a dust suction pipe (810) in communication with the dust suction hole (89).

4. The coal refuse sorting device of claim 1, wherein, The inside of the housing (82) is provided with a sliding groove (812), and the two sides of the movable block (84) are provided with a pulley (813) slidably arranged in the sliding groove (812).

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