Coal mining with coal block collection and processing system

Abstract

The present application provides a kind of coal mining with coal lump collection processing system, it is related to coal processing technical field, including feed hopper, first crushing device and second crushing device, feed hopper has crushing cavity;First crushing device and second crushing device are separately arranged in the two sides of feed hopper along first direction and all include first driver and crushing assembly, first direction is orthogonal to up and down direction, first driver is arranged outside feed hopper, at least part of crushing assembly is slidably connected with crushing cavity, first driver is drivingly connected with crushing assembly to push and pull crushing assembly to extend or retract along first direction relative to crushing cavity;The side of crushing assembly towards crushing cavity has first crushing surface and second crushing surface, and the second crushing surface is more adjacent to the inner wall surface of the crushing cavity than the first crushing surface.The present application can realize good crushing treatment to coal lump under the condition of reducing the self-loss of crushing assembly.

Description

Technical Field

[0001] This invention relates to the field of coal mine processing technology, and in particular to a coal block collection and processing system for coal mining. Background Technology

[0002] Coal mining is the process of developing and extracting coal resources, whether underground or on the surface. This process includes exploration, development, mining, transportation, and processing. The coal blocks initially mined from a coal mine are usually quite large, and to facilitate subsequent transportation and use, these larger blocks need to be processed.

[0003] In related technologies, coal blocks are often crushed by crushing rollers in the feed bin, and then screened by a screen to separate coal blocks of the required size. However, the crushing rollers are prone to wear and need to be replaced frequently during the coal crushing process, which increases maintenance costs and downtime, thus affecting the efficiency of coal mine collection and processing. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a coal block collection and processing system for coal mining, which can achieve good crushing of coal blocks while reducing the self-wear of crushing components.

[0006] A coal mining coal lump collection and processing system according to an embodiment of the present invention includes a feed hopper, a first crushing device, and a second crushing device. The feed hopper has a crushing chamber. The first crushing device and the second crushing device are respectively disposed on both sides of the feed hopper along a first direction and each includes a first driver and a crushing component. The first direction is orthogonal to the vertical direction. The first driver is disposed outside the feed hopper. At least a portion of the crushing component is slidably connected to the crushing chamber. The first driver is drively connected to the crushing component to push or pull the crushing component to extend or retract relative to the crushing chamber along the first direction. The side of the crushing component facing the crushing chamber has a first crushing surface and a second crushing surface. The second crushing surface is closer to the inner wall surface of the crushing chamber than the first crushing surface.

[0007] According to an embodiment of the present invention, a coal mining coal block collection and processing system consists of a feeding hopper, a first crushing device, and a second crushing device working together. This system can crush mined coal blocks within a crushing chamber. Each of the first and second crushing devices has a first driver that can push and pull the crushing component outwards along a first direction relative to the crushing chamber. Under the opposing impact of the crushing components of the first and second crushing devices, the coal blocks are crushed by the compression and impact of their first and second crushing surfaces. Because the second crushing surface is closer to the inner wall of the crushing chamber than the first crushing surface, the first crushing surface can contact the coal block before the second crushing surface during crushing. The first crushing surface initially crushes the coal block, and the pre-crushed coal block is easier to crush, thus reducing the self-wear of the second crushing surface during crushing and ensuring its service life. Simultaneously, the two crushing processes create a multi-layered crushing effect, which improves the durability and crushing efficiency of the collection and processing system, ensuring that the particle size of the crushed coal blocks meets actual requirements. Therefore, compared to related technologies, the present invention can achieve good crushing of coal blocks while reducing the self-wear of the crushing components.

[0008] In some embodiments, the first breaking surface is a plane, and the second breaking surface is a cone.

[0009] In some embodiments, the feed hopper is provided with a first through hole and a second through hole communicating with the crushing chamber, and the crushing assembly includes an impact plate, a first rod, and a second rod.

[0010] The impact plate is located outside the feed hopper and is connected to the first driver for transmission.

[0011] The impact plate has a first rod and a second rod arranged at intervals on the side opposite to the first driver. Both the first rod and the second rod extend along the first direction. The first rod is slidably connected to the first through hole, and the second rod is slidably connected to the second through hole.

[0012] The first rod forms the first fracture surface by facing away from the end face of the impact plate, and the second rod forms the second fracture surface by facing away from the end face of the impact plate. The length of the first rod is greater than the length of the second rod.

[0013] In some embodiments, there are multiple first rods and multiple second rods, multiple first through holes corresponding to one-to-one with the first rods, and multiple second through holes corresponding to one-to-one with the second rods;

[0014] The plurality of first poles include at least one row of first poles spaced apart along the vertical direction, each row of first poles includes a plurality of first poles spaced apart along a second direction, the second direction, the first direction and the vertical direction are perpendicular to each other, the plurality of second poles include at least one row of second poles spaced apart along the vertical direction, each row of second poles includes a plurality of second poles spaced apart along the second direction, and at least one row of second poles is provided between any two adjacent rows of first poles.

[0015] In some embodiments, on a projection plane orthogonal to the vertical direction, the projections of the first rod in the first crushing device and the first rod in the second crushing device are alternately arranged along the second direction, and the projections of the second rod in the first crushing device and the second rod in the second crushing device are alternately arranged along the second direction.

[0016] In some embodiments, a second row of poles is provided between any two adjacent rows of first poles, and on a projection plane orthogonal to the first direction, the projections of any first pole and the projections of adjacent second poles are staggered along the vertical direction.

[0017] In some embodiments, the collection and processing system further includes a filter screen and a guide chamber. The filter screen is disposed in the crushing chamber, and in the vertical direction, the projection of the filter screen is located below the crushing component of each of the first crushing device and the second crushing device. The guide chamber is disposed below the feed hopper and has a guide cavity, and the filter screen is used to space the crushing chamber from the guide cavity.

[0018] In some embodiments, the collection and processing system further includes an anti-clogging mechanism, which includes a rotating plate and unclogging needles. The rotating plate is pivotally mounted in the guide cavity and has a first position and a second position. Multiple unclogging needles are disposed on the rotating plate. In the first position, the rotating plate is located on the outer periphery of the filter screen, and the unclogging needles are spaced apart from the mesh openings of the filter screen. In the second position, the rotating plate and the filter screen are arranged along the vertical direction, and the unclogging needles are slidably engaged within the mesh openings of the filter screen.

[0019] In some embodiments, the anti-blocking mechanism further includes a second driver disposed in the guide chamber and drivenly connected to the rotating plate, so that the rotating plate can switch between the first position and the second position.

[0020] In some embodiments, the collection and processing system further includes a collection chamber, a guide, and a collection box. The collection chamber is located below the guide chamber, the guide is located inside the collection chamber, the inner cavity of the guide is connected to the guide cavity, and the cross-sectional area of ​​the inner cavity of the guide gradually decreases from top to bottom. The collection box is detachably connected to the collection chamber and located below the guide, and the collection box is used to collect the filtered broken coal pieces.

[0021] In some embodiments, the collection and processing system further includes a collection mechanism and a conveying mechanism, wherein the collection mechanism, the conveying mechanism and the feed hopper are connected in sequence, the collection mechanism is used to collect the mined coal blocks, and the conveying mechanism is used to convey the collected coal blocks to the feed hopper.

[0022] In some embodiments, the collecting mechanism includes a third driver, a roller, and a feeding plate, the third driver being drivenly connected to the roller; the feeding plates are multiple and arranged at circumferential intervals along the roller, the feeding plates extend axially along the roller, and the outer peripheral wall of the roller defines a first receiving groove for receiving coal blocks between any two adjacent feeding plates; the feeding plate has a first surface and a second surface arranged opposite to each other in its thickness direction, the first surface and the second surface being arcuate surfaces and protruding toward a side away from the conveying direction of the conveying mechanism.

[0023] In some embodiments, the conveying mechanism includes a fourth driver, a conveyor belt, and a separator bar. The fourth driver is tractively connected to the conveyor belt, which has a conveying surface. The separator bar is disposed on the conveying surface and protrudes from the conveying surface along the thickness direction of the conveyor belt. There are multiple separator bars arranged at intervals along the extension direction of the conveyor belt. The conveying surface and any two adjacent separator bars define a second receiving groove for accommodating coal blocks. The cross-sectional area of ​​the second receiving groove gradually increases from its bottom towards its opening.

[0024] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of a coal mining coal block collection and processing system according to an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the structure of the feed hopper in a coal mining coal block collection and processing system according to an embodiment of the present invention.

[0027] Figure 3 This is a schematic diagram of the structure of the first crushing device in a coal mining coal block collection and processing system according to an embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the structure of the first crushing device and the second crushing device in the coal mining coal block collection and processing system according to an embodiment of the present invention, when used to crush coal blocks.

[0029] Figure 5 This is a cross-sectional schematic diagram of the connection structure of the feed hopper, the first crushing device, the second crushing device, the filter screen, the guide bin, and the collection bin in a coal mining coal block collection and processing system according to an embodiment of the present invention.

[0030] Figure 6 This is a schematic diagram of the connection structure of the feed hopper, first crushing device, second crushing device, guide bin, collection bin and collection box in a coal mining coal block collection and processing system according to an embodiment of the present invention.

[0031] Figure 7 This is a schematic diagram of the connection structure between the collection mechanism and the conveying mechanism in a coal block collection and processing system for coal mining according to an embodiment of the present invention.

[0032] Figure label:

[0033] 1. Feed hopper; 11. Crushing chamber; 12. First through hole; 13. Second through hole;

[0034] 2. First crushing device; 21. First driver; 22. Crushing assembly; 221. First crushing surface; 222. Second crushing surface; 223. Impact plate; 224. First rod; 225. Second rod;

[0035] 3. Second crushing device;

[0036] 4. Filter screen;

[0037] 5. Guiding chamber; 51. Guiding cavity;

[0038] 6. Anti-blocking mechanism; 61. Rotating plate; 62. Unblocking needle; 63. Second actuator;

[0039] 7. Collection chamber; 71. Guide component; 72. Collection box;

[0040] 8. Collection mechanism; 81. Third drive; 82. Roller; 83. Feeding plate; 831. First receiving tank; 84. Spray assembly;

[0041] 9. Conveying mechanism; 91. Fourth drive; 92. Conveyor belt; 921. Conveying surface; 93. Isolation strip; 931. Second receiving groove. Detailed Implementation

[0042] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0043] like Figures 1 to 4 As shown, a coal mining coal block collection and processing system according to an embodiment of the present invention includes a feed hopper 1, a first crushing device 2, and a second crushing device 3. The feed hopper 1 has a crushing chamber 11. The first crushing device 2 and the second crushing device 3 are respectively disposed on both sides of the feed hopper 1 along a first direction and each includes a first driver 21 and a crushing component 22. The first direction is orthogonal to the vertical direction. The first driver 21 is disposed outside the feed hopper 1. At least a portion of the crushing component 22 is slidably connected to the crushing chamber 11. The first driver 21 is drive-connected to the crushing component 22 to push or pull the crushing component 22 relative to the crushing chamber 11 to extend or retract along the first direction. The side of the crushing component 22 facing the crushing chamber 11 has a first crushing surface 221 and a second crushing surface 222. The second crushing surface 222 is closer to the inner wall surface of the crushing chamber 11 than the first crushing surface 221.

[0044] According to an embodiment of the present invention, a coal mining coal block collection and processing system consists of a feeding hopper 1, a first crushing device 2, and a second crushing device 3 working together to crush the mined coal blocks in a crushing chamber 11. The first driver 21 of each of the first crushing device 2 and the second crushing device 3 can push and pull the crushing component 22 outwards relative to the crushing chamber 11 along a first direction. Under the mutual impact of the crushing components 22 of the first crushing device 2 and the second crushing device 3, the coal blocks are crushed by the compression and impact of their first and second crushing surfaces 221 and 222. The second crushing surface 222 is relatively smaller than the first crushing surface 222. 1. The first crushing surface 221 is closer to the inner wall of the crushing chamber 11, meaning that during crushing, the first crushing surface 221 can contact the coal block before the second crushing surface 222. The first crushing surface 221 first performs preliminary crushing on the coal block, and the coal block that has undergone preliminary crushing is easier to crush. Therefore, the self-wear of the second crushing surface 222 when crushing the coal block can be reduced, so as to ensure the service life of the second crushing surface 222. At the same time, the two crushing processes form a multi-level crushing effect, which is beneficial to improving the durability and crushing efficiency of the collection and processing system and ensuring that the particle size of the crushed coal block meets the actual requirements. Therefore, compared with related technologies, the present invention can achieve good crushing treatment of coal blocks while reducing the self-wear of the crushing component 22.

[0045] It is understood that the first crushing device 2 and the second crushing device 3 are respectively located on opposite sides of the feed hopper 1 along the first direction, and the first driver 21 of each of the first crushing device 2 and the second crushing device 3 can push and pull the crushing component 22 to extend or retract relative to the crushing chamber 11 along the first direction. Therefore, the crushing components 22 of the first crushing device 2 and the second crushing device 3 can move towards each other and reciprocate, so that the first crushing device 2 and the second crushing device 3 can repeatedly squeeze and impact the coal block to achieve the crushing process of the coal block. In addition, when the crushing components 22 of the first crushing device 2 and the second crushing device 3 retract relative to the crushing chamber 11, that is, when both are far away from the crushing chamber 11, the coal block to be crushed can also be added to the crushing chamber 11, so that the collection and processing system can continuously carry out coal block crushing operations.

[0046] Specifically, the feed hopper 1 can be funnel-shaped. The top of the feed hopper 1 has a feed inlet, and the bottom has a discharge outlet, with its cross-sectional area gradually decreasing from the feed inlet towards the discharge outlet. The feed hopper 1 is used to receive and initially store the coal blocks to be crushed, and can guide the coal blocks to fall naturally into the crushing chamber 11 based on gravity and the shape of the feed hopper 1 itself. The first drive 21 can be fixed to the outside of the feed hopper 1 by means of a support frame for easy maintenance. The first drive 21 can be a linear drive mechanism, such as a powerful hydraulic cylinder or pneumatic cylinder, to improve crushing efficiency. The number of first drives 21 in each of the first crushing device 2 and the second crushing device 3 can be determined according to actual conditions to ensure sufficient power for the first crushing surface 221 and the second crushing surface 222. For example, both have pairs of first drives 21, and the pairs of first drives 21 are arranged mirror-symmetrically to ensure the stability of the movement of the crushing assembly 22.

[0047] like Figure 3 As shown, in some embodiments, the first breaking surface 221 is a plane and the second breaking surface 222 is a conical surface.

[0048] Understandably, since the first crushing surface 221 is a plane, the contact area between the crushing component 22 and the coal block can be increased, ensuring sufficient pressure on the coal block to reliably crush it. At the same time, the planar structure also reduces the risk of collapse of the first crushing surface 221, effectively reducing the self-wear of the crushing component 22 and ensuring its service life. The design of the second crushing surface 222 as a conical surface allows the crushing component 22 to have greater pressure, so as to concentrate the pressure and achieve secondary fine crushing of the initially crushed coal block.

[0049] like Figures 2 to 4 As shown, in some embodiments, the feed hopper 1 is provided with a first through hole 12 and a second through hole 13 that communicate with the crushing chamber 11, and the crushing component 22 includes an impact plate 223, a first rod 224 and a second rod 225.

[0050] The impact plate 223 is located outside the feed hopper 1 and is connected to the first driver 21 for transmission.

[0051] The impact plate 223 has a first rod 224 and a second rod 225 arranged at intervals on the side opposite to the first driver 21. Both the first rod 224 and the second rod 225 extend along a first direction. The first rod 224 is slidably connected to the first through hole 12, and the second rod 225 is slidably connected to the second through hole 13. In other words, the first rod 224 can slide with the first through hole 12, and the second rod 225 can slide with the second through hole 13.

[0052] The first rod 224 forms a first fracture surface 221 on the end face away from the impact plate 223, and the second rod 225 forms a second fracture surface 222 on the end face away from the impact plate 223. The length of the first rod 224 is greater than the length of the second rod 225.

[0053] It is understood that the first driver 21 pushes and pulls the impact plate 223, and the first rod 224 on the impact plate 223 passes through the first through hole 12 and the second rod 225 passes through the second through hole 13, so that the two can extend into or out of the crushing chamber 11 to achieve the crushing operation of coal blocks. The length of the first rod 224 is greater than the length of the second rod 225, that is, the first rod 224 contacts the coal block and crushes the coal block before the second rod 225. Therefore, when the first rod 224 is damaged after long-term use of the crushing component 22, only the first rod 224 needs to be replaced to continue to use it, without replacing the entire crushing component 22, which reduces maintenance costs and improves durability.

[0054] Based on the above structure, it can be seen that the end face of the first rod 224 facing away from the impact plate 223 forms the first crushing surface 221, and the end face of the second rod 225 facing away from the impact plate 223 forms the second crushing surface 222. When the first crushing surface 221 is a plane and the second crushing surface 222 is a conical surface, the end of the first rod 224 facing away from the impact plate 223 is a flat end, and the end of the second rod 225 facing away from the impact plate 223 is a pointed end. The flat end design of the first rod 224 gives it a larger contact area with the coal block, reducing the risk of end breakage. It effectively reduces the wear of the crushing component 22 and extends its service life while crushing the coal block. The pointed end design of the second rod 225 has a larger pressure, which can concentrate the pressure to further crush the initially crushed coal block. At the same time, the coal block that has undergone initial crushing is easier to crush, thus reducing the wear of the pointed end of the second rod 225 during the secondary crushing process.

[0055] Specifically, both the first through hole 12 and the second through hole 13 can be formed on the side wall of the feed hopper 1. The impact plate 223 can be detachably connected to the first driver 21 so that when the first rod 224 or the second rod 225 on the impact plate 223 is damaged, the crushing component 22 can be quickly repaired by disassembling and replacing the impact plate 223. While ensuring that the collection and processing system can continue to work, the first rod 224 or the second rod 225 on the disassembled impact plate 223 can be further repaired and replaced.

[0056] like Figures 2 to 4 As shown, in some embodiments, there are multiple first rods 224 and multiple second rods 225, multiple first through holes 12 corresponding to one-to-one with the first rods 224, and multiple second through holes 13 corresponding to one-to-one with the second rods 225.

[0057] The plurality of first rods 224 include at least one row of first rods 224 spaced apart along the vertical direction, each row of first rods 224 includes a plurality of first rods 224 spaced apart along a second direction, the second direction, the first direction and the vertical direction are perpendicular to each other, the plurality of second rods 225 include at least one row of second rods 225 spaced apart along the vertical direction, each row of second rods 225 includes a plurality of second rods 225 spaced apart along the second direction, and at least one row of second rods 225 is provided between any two adjacent rows of first rods 224.

[0058] It is understandable that multiple first rods 224 and second rods 225 are arranged on the impact plate 223 to increase the density (or number) of the crushing rods (i.e., the first rods 224 and the second rods 225) on the impact plate 223, which can ensure the full crushing of the coal block.

[0059] Meanwhile, since the crushing end of the second rod 225 (that is, the end away from the impact plate 223) is a pointed tip, although the arrangement of the second rod 225 increases the density of the crushing rods on the impact plate 223, the small contact area of ​​the pointed tip does not cause a significant increase in the total contact area between all the crushing rods and the coal block. This results in a smaller impact on the overall pressure drop caused by all the crushing rods impacting the coal block. In other words, it satisfies the goal of increasing the density of the crushing rods while maintaining sufficient pressure to improve the crushing effect on the coal block.

[0060] Therefore, by combining crushing rods of different lengths and shapes, multi-level crushing effects can be achieved without significantly reducing the overall pressure, optimizing the coal processing process and ensuring that the particle size distribution of the coal meets actual requirements.

[0061] like Figures 2 to 4As shown, in some embodiments, on a projection plane orthogonal to the up and down directions, the projections of the first rod 224 in the first crushing device 2 and the first rod 224 in the second crushing device 3 are alternately arranged along the second direction, and the projections of the second rod 225 in the first crushing device 2 and the second rod 225 in the second crushing device 3 are alternately arranged along the second direction.

[0062] It is understandable that by adopting the above structural design, the crushing rods in the first crushing device 2 and the crushing rods in the second crushing device 3 can be staggered to ensure that they do not collide, avoid the damage to the crushing component 22 caused by the collision of the crushing rods, and enable the relatively arranged crushing rods to work together to crush the coal blocks in the crushing chamber 11. While forming a coal block crushing space, the overall crushing efficiency is further improved, and the coal blocks can be crushed into smaller particles.

[0063] Specifically, the shortest distance between any two adjacent crushing rods in the crushing assembly 22 can be designed to be non-uniform in order to enhance the overall crushing efficiency of the crushing assembly 22.

[0064] like Figures 2 to 4 As shown, in some embodiments, a row of second rods 225 is provided between any two adjacent rows of first rods 224. On the projection plane orthogonal to the first direction, the projections of any first rod 224 and the projections of adjacent second rods 225 are staggered in the vertical direction to further improve the crushing performance of the crushing component 22 on coal blocks.

[0065] like Figure 5 As shown, in some embodiments, the collection and processing system further includes a filter screen 4 and a guide chamber 5. The filter screen 4 is disposed in the crushing chamber 11, and in the vertical direction, the projection of the filter screen 4 is located below the crushing component 22 of each of the first crushing device 2 and the second crushing device 3. The guide chamber 5 is disposed below the feed hopper 1 and has a guide cavity 51. The filter screen 4 is used to separate the crushing chamber 11 from the guide cavity 51.

[0066] It is understandable that the filter screen 4 can filter the crushed coal blocks, so that the coal blocks that do not meet the particle size requirements are intercepted by the filter screen 4 in the crushing chamber 11 and continue to be crushed by the crushing component 22, while the coal blocks that meet the particle size requirements pass through the mesh of the filter screen 4 and enter the guide chamber 5. The guide chamber 51 can guide the coal blocks that meet the particle size requirements to the subsequent processing area to ensure the smooth flow of the coal blocks.

[0067] Specifically, the filter screen 4 can be installed at the discharge port of the feed hopper 1. The filter screen 4 can be a mesh structure with a certain pore size formed by multiple interwoven metal wires, or it can be a structure with filter holes. The guide chamber 5 can be located at the bottom of the feed hopper 1.

[0068] like Figure 5As shown, in some embodiments, the collection and processing system further includes an anti-clogging mechanism 6, which includes a rotating plate 61 and unblocking needles 62. The rotating plate 61 is pivotally mounted in the guide cavity 51 and has a first position and a second position. Multiple unblocking needles 62 are disposed on the rotating plate 61. In the first position, the rotating plate 61 is located on the outer periphery of the filter screen 4, and the unblocking needles 62 are spaced apart from the mesh of the filter screen 4. In the second position, the rotating plate 61 and the filter screen 4 are arranged in the vertical direction, and the unblocking needles 62 are slidably engaged in the mesh of the filter screen 4.

[0069] It is understandable that by rotating the rotating plate 61, the unblocking needle 62 can be inserted into the mesh of the filter screen 4 to push the coal blockage in the mesh out to the crushing chamber 11 for further crushing, thereby ensuring the filtration performance of the filter screen 4 and enabling the collection and processing system to operate efficiently and stably.

[0070] Specifically, the unblocking needle 62 corresponds one-to-one with the mesh openings of the filter screen 4. The mesh openings of the filter screen 4 extend along the thickness direction of the filter screen 4, and the length of the unblocking needle 62 is greater than the length of the mesh openings of the filter screen 4, to ensure that the unblocking needle 62 can smoothly push the coal blocks blocked in the mesh openings to the crushing chamber 11. The rotating plate 61 operates inertially and is located at the edge of the guide chamber 51 when not in motion. Coal blocks falling through the filter screen 4 do not contact the rotating plate 61, effectively preventing the falling coal blocks from damaging the unblocking needle 62 on the rotating plate 61. At the same time, it also makes the material falling into the guide chamber 51 smoother.

[0071] like Figure 5 As shown, in some embodiments, the anti-blocking mechanism 6 further includes a second driver 63, which is disposed in the guide chamber 5 and is connected to the rotating plate 61 in a driving manner, so that the rotating plate 61 can automatically switch between a first position and a second position.

[0072] like Figure 5 and Figure 6 As shown, in some embodiments, the collection and processing system further includes a collection chamber 7, a guide 71, and a collection box 72. The collection chamber 7 is located below the guide chamber 5, the guide 71 is located inside the collection chamber 7, the inner cavity of the guide 71 is connected to the guide cavity 51, and the cross-sectional area of ​​the inner cavity of the guide 71 gradually decreases from top to bottom. The collection box 72 is detachably connected to the collection chamber 7 and located below the guide 71. The collection box 72 is used to collect the filtered broken coal pieces.

[0073] Understandably, after crushing, coal pieces with the correct particle size enter the inner cavity of the guide 71 through the guide cavity 51. With the assistance of the guide 71, they can be collected into the collection box 72, which facilitates the convenient transfer of coal pieces with the correct particle size by the staff.

[0074] Specifically, the collection bin 7 may be equipped with a door, which may be slidably connected to the collection bin 7, or pivotally connected to the collection bin 7, or detachably connected to the collection bin 7. In other words, the door may be open or openable. The guide 71 may be a hollow structure with openings at both ends, that is, the guide 71 has a top opening and a bottom opening, and the bottom opening of the guide 71 may communicate with the collection box 72. The collection box 72 may be equipped with a handle, making it convenient for workers to open the bin door to pull out the collection box 72 filled with coal from the collection bin 7. The collection box 72 may also be a mobile collection box 72, such as having casters at the bottom, further enabling workers to move the fully loaded collection box 72 more flexibly with less effort.

[0075] like Figures 1 to 7 As shown, in some embodiments, the collection and processing system further includes a collection mechanism 8 and a conveying mechanism 9. The collection mechanism 8, the conveying mechanism 9 and the feed hopper 1 are connected in sequence. The collection mechanism 8 is used to collect the mined coal blocks, and the conveying mechanism 9 is used to convey the collected coal blocks to the feed hopper 1. The collection mechanism 8, the conveying mechanism 9 and the feed hopper 1 work together to form an automatic collection, conveying and crushing processing system for the mined coal blocks. The overall structure is compact.

[0076] like Figure 7 As shown, in some embodiments, the collecting mechanism 8 includes a third driver 81, a roller 82, and a feeding plate 83. The third driver 81 is drive-connected to the roller 82. There are multiple feeding plates 83 arranged at intervals along the circumference of the roller 82. The feeding plates 83 extend along the axial direction of the roller 82. The outer peripheral wall of the roller 82 and any two adjacent feeding plates 83 define a first receiving groove 831 for receiving coal blocks. The feeding plate 83 has a first surface and a second surface arranged opposite to each other in its thickness direction. Both the first surface and the second surface are arc-shaped surfaces and protrude toward the side away from the conveying direction of the conveying mechanism 9. In other words, the feeding plate 83 is an arc-shaped curved plate.

[0077] Understandably, during the coal mining process, the third drive 81 drives the roller 82 to rotate, which in turn drives the feeding plate 83 to rotate, so as to collect the mined coal blocks from the mine floor or coal pile into the first receiving trough 831. When the first receiving trough 831 is adjacent to the conveying mechanism 9, the coal blocks in the first receiving trough 831 can fall onto the conveying mechanism 9 to be transported to the feed hopper 1 for crushing.

[0078] Specifically, the collection mechanism 8 also includes a spray assembly 84, which is used to spray water onto the roller 82 to wet the coal blocks in the first receiving tank 831, so as to effectively prevent dust from the coal block collection stage and reduce environmental pollution problems.

[0079] like Figure 7As shown, in some embodiments, the conveying mechanism 9 includes a fourth driver 91, a conveyor belt 92, and a separator 93. The fourth driver 91 is drive-connected to the conveyor belt 92, which has a conveying surface 921. The separator 93 is disposed on the conveying surface 921 and protrudes from the conveying surface 921 along the thickness direction of the conveyor belt 92. There are multiple separators 93, which are spaced apart along the extension direction of the conveyor belt 92. The conveying surface 921 and any two adjacent separators 93 define a second receiving groove 931 for accommodating coal blocks. The cross-sectional area of ​​the second receiving groove 931 gradually increases from its bottom towards its opening.

[0080] Understandably, when the first receiving trough 831 rotates to connect with the second receiving trough 931, the coal block will automatically slide from the first receiving trough 831 into the second receiving trough 931 and be conveyed towards the feed hopper 1 along the conveyor belt 92 until the second receiving trough 931 connects with the feed inlet of the feed hopper 1, and the coal block can then fall into the crushing chamber 11 of the feed hopper 1 for processing.

[0081] The use of isolation strip 93 can, to a certain extent, prevent the risk of coal blocks slipping off the conveyor belt 92 during transportation, thus ensuring the safety of the transportation process. At the same time, the inverted structure of the second receiving trough 931 is also conducive to the stable transportation of coal blocks.

[0082] Specifically, the fourth drive is not limited to a conveyor motor. In the vertical direction, the feed end of the conveyor belt 92 can be lower than its discharge end. The feed end of the conveyor belt 92 is connected to the first receiving groove 831, and the discharge end of the conveyor belt 92 is connected to the feed inlet of the feed hopper 1. That is, the conveyor belt 92 extends inclined upwards to convey coal blocks to the top of the feed hopper 1. The conveying surface 921 is provided with a wear-resistant rubber coating or a polyurethane coating; alternatively, the conveyor belt 92 is a wear-resistant rubber conveyor belt 92 or a polyurethane conveyor belt 92 to ensure the stability and durability of the conveyor belt 92 over long-term use. The isolation strip 93 extends along the width direction of the conveyor belt 92. The extension direction of the second receiving groove 931 is orthogonal to the conveying direction of the conveyor belt 92.

[0083] It should be noted that the use of the first drive 21, the second drive 63, the third drive 81 and the fourth drive 91 further enhances the automation level of the collection and processing system, reduces manual intervention, improves the safety and efficiency of operation, and is more suitable for the current coal mining needs.

[0084] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0085] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0086] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0087] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0088] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0089] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A coal mining coal lump collection and processing system, characterized in that, include: The feed hopper has a crushing chamber; A first crushing device and a second crushing device are respectively disposed on both sides of the feed hopper along a first direction and each includes a first driver and a crushing component. The first direction is orthogonal to the vertical direction. The first driver is disposed outside the feed hopper. At least a portion of the crushing component is slidably connected to the crushing chamber. The first driver is drivenly connected to the crushing component to push or pull the crushing component to extend or retract relative to the crushing chamber along the first direction. The crushing component has a first crushing surface and a second crushing surface on the side facing the crushing chamber, and the second crushing surface is closer to the inner wall surface of the crushing chamber than the first crushing surface. The first fracture surface is a plane, and the second fracture surface is a cone. The feed hopper is provided with a first through hole and a second through hole communicating with the crushing chamber, and the crushing assembly includes: An impact plate is disposed outside the feed hopper and is connected to the first driver for transmission. The first rod and the second rod are provided on the side of the impact plate away from the first driver. The first rod and the second rod are arranged at intervals. Both the first rod and the second rod extend along the first direction. The first rod is slidably connected to the first through hole, and the second rod is slidably connected to the second through hole. The first rod forms the first fracture surface by facing away from the end face of the impact plate, and the second rod forms the second fracture surface by facing away from the end face of the impact plate. The length of the first rod is greater than the length of the second rod.

2. The coal mining coal lump collection and processing system according to claim 1, characterized in that, There are multiple first rods and multiple second rods; there are multiple first through holes that correspond one-to-one with the first rods; there are multiple second through holes that correspond one-to-one with the second rods. The plurality of first poles include at least one row of first poles spaced apart along the vertical direction, each row of first poles includes a plurality of first poles spaced apart along a second direction, the second direction, the first direction and the vertical direction are perpendicular to each other, the plurality of second poles include at least one row of second poles spaced apart along the vertical direction, each row of second poles includes a plurality of second poles spaced apart along the second direction, and at least one row of second poles is provided between any two adjacent rows of first poles.

3. The coal mining coal lump collection and processing system according to claim 2, characterized in that, On a projection plane orthogonal to the vertical direction, the projections of the first rod in the first crushing device and the first rod in the second crushing device are alternately arranged along the second direction, and the projections of the second rod in the first crushing device and the second rod in the second crushing device are alternately arranged along the second direction.

4. The coal mining coal lump collection and processing system according to claim 2, characterized in that, A second row of poles is provided between any two adjacent rows of first poles. On a projection plane orthogonal to the first direction, the projections of any first pole and the projections of the adjacent second poles are staggered along the vertical direction.

5. The coal mining coal lump collection and processing system according to any one of claims 1-4, characterized in that, Also includes: A filter screen is disposed in the crushing chamber, and in the vertical direction, the projection of the filter screen is located below the crushing component of each of the first crushing device and the second crushing device; A guide chamber is provided below the feed hopper and has a guide cavity. The filter screen is used to separate the crushing chamber from the guide cavity.

6. The coal mining coal lump collection and processing system according to claim 5, characterized in that, It also includes an anti-blocking mechanism, which includes: A rotating plate, the rotating plate being pivotally mounted in the guide cavity and having a first position and a second position; The unclogging needle is disposed on the rotating plate and there are multiple unclogging needles. In the first position, the rotating plate is located on the outer periphery of the filter screen, and the unclogging needle is spaced apart from the mesh of the filter screen. In the second position, the rotating plate and the filter screen are arranged along the vertical direction, and the unclogging needle is slidably engaged in the mesh of the filter screen.

7. The coal mining coal lump collection and processing system according to claim 5, characterized in that, Also includes: A collection chamber and a guide, wherein the collection chamber is located below the guide chamber, the guide is located inside the collection chamber, the inner cavity of the guide is connected to the guide cavity, and the cross-sectional area of ​​the inner cavity of the guide gradually decreases from top to bottom; A collection box, which is detachably connected to the collection chamber and located below the guide, is used to collect filtered broken coal pieces.

8. The coal mining coal lump collection and processing system according to claim 1, characterized in that, It also includes a collection mechanism and a conveying mechanism, which are connected in sequence. The collection mechanism is used to collect the mined coal blocks, and the conveying mechanism is used to transport the collected coal blocks to the feed hopper.

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