Pit column coal slime crushing and adsorbing device

By combining a multi-degree-of-freedom drive mechanism and a negative pressure fan, efficient crushing and cleaning of air-dried coal slime in coal mine pillar pits are achieved, solving the problem of the single function of existing equipment, improving cleaning efficiency and reducing secondary pollution.

CN224495249UActive Publication Date: 2026-07-14SHENHUA SHENDONG COAL GRP +1

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENHUA SHENDONG COAL GRP
Filing Date
2025-06-25
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

Existing automated cleaning equipment has limited functionality and cannot meet the cleaning needs of complex coal mine scenarios, especially in the crushing, sweeping, and collection of dried coal sludge, resulting in incomplete cleaning and easy secondary pollution.

Method used

A coal slime crushing and adsorption device for column pits is designed. A multi-degree-of-freedom drive mechanism is used to drive the cleaning mechanism to move flexibly in three-dimensional space. Combined with a negative pressure fan and a storage box, a high-efficiency negative pressure adsorption channel is formed to achieve all-round coal slime cleaning without dead angles.

Benefits of technology

It significantly improves cleaning efficiency, can adapt to column pits of different shapes and depths, and can process hard coal slime in stages or simultaneously, avoiding the high labor intensity and safety hazards of traditional cleaning methods and reducing secondary pollution.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to coal slime crushing adsorption technical field especially, a kind of column pit coal slime crushing adsorption device to solve the problem that the single function of automatic cleaning equipment in prior art cannot meet the demand of multiple working conditions. Column pit coal slime crushing adsorption device includes: device main body, multiple degrees of freedom driving mechanism, cleaning mechanism, negative pressure fan, storage tank, first pipeline and second pipeline, the fixed end of multiple degrees of freedom driving mechanism is located on device main body, and cleaning mechanism is located at the output end of multiple degrees of freedom driving mechanism;Negative pressure fan is communicated with storage tank by first pipeline, and storage tank is communicated with cleaning mechanism by second pipeline, and cleaning mechanism is used to clean coal slime in column pit. The column pit coal slime crushing adsorption device provided by the utility model is used to clean column pit coal slime.
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Description

Technical Field

[0001] This utility model relates to the field of coal slime crushing and adsorption technology, and in particular to a coal slime crushing and adsorption device for column pits. Background Technology

[0002] During coal mining and equipment maintenance, coal sludge easily accumulates in the hydraulic support column pits, especially after long-term drying, forming hard lumps that are difficult to clean. Traditional cleaning methods mainly rely on manual labor using tools such as shovels and brushes, which is labor-intensive, inefficient, and poses safety hazards. While existing automated cleaning equipment can reduce manual intervention, its robotic arms lack precision, making it difficult to handle hard coal sludge or access narrow spaces. Furthermore, the equipment is bulky and difficult to move in the confined environment of mines.

[0003] Current technologies primarily target sludge or wastewater cleaning, lacking solutions for crushing, sweeping, and collecting dried coal sludge. This results in incomplete cleaning and a high risk of secondary pollution. While some existing robotic arm structures can improve operational precision, their functionality is limited and cannot meet the cleaning needs of complex coal mine environments.

[0004] Therefore, how to solve the problem that existing automated cleaning equipment has limited functionality and cannot meet the needs of multiple working conditions is one of the important problems that urgently need to be solved in this field. Utility Model Content

[0005] In view of this, the present invention provides a column pit coal slime crushing and adsorption device to solve the problem that the existing automated cleaning equipment has a single function and cannot meet the needs of multiple working conditions.

[0006] According to one aspect of the present invention, a column pit coal slime crushing and adsorption device is provided. The column pit coal slime crushing and adsorption device includes: a device body, a multi-degree-of-freedom drive mechanism, a cleaning mechanism, a negative pressure fan, a storage box, a first pipe and a second pipe. The fixed end of the multi-degree-of-freedom drive mechanism is located on the device body, and the cleaning mechanism is located at the output end of the multi-degree-of-freedom drive mechanism.

[0007] The negative pressure fan is connected to the storage tank through the first pipe, and the storage tank is connected to the cleaning mechanism through the second pipe. The cleaning mechanism is used to clean the coal slurry in the pillar pit.

[0008] According to one aspect of the present invention, the column pit coal slime crushing and adsorption device includes a multi-degree-of-freedom driving mechanism comprising: a first rotary structure, a support, a first section arm, and a first telescopic member. The first rotary structure is fixed on the support frame of the main body of the device. The support is used to fix the first rotary structure. The fixed end of the first section arm is rotatably connected to the support. One end of the first telescopic member is rotatably connected to the support. The other end of the first telescopic member is connected to the middle part of the first section arm. The first telescopic member is used to drive the first section arm to pitch.

[0009] According to one aspect of the present invention, the multi-degree-of-freedom drive mechanism of the column pit coal slime crushing and adsorption device further includes: a second arm and a second telescopic member. The second arm is rotatably connected to the output end of the first arm. One end of the second telescopic member is connected to the middle part of the first arm, and the other end of the second telescopic member is connected to the end of the second arm. The second telescopic member is used to drive the second arm to pitch.

[0010] According to one aspect of the present invention, the multi-degree-of-freedom drive mechanism of the column pit coal slime crushing and adsorption device further includes: a third boom and a third telescopic member, and an arc connecting member. The end of the third boom is connected to the second boom section through the arc connecting member. One end of the third telescopic member is connected to the middle part of the second boom section, and the other end of the third telescopic member is connected to the arc connecting member. The third telescopic member is used to drive the pitching motion of the third boom.

[0011] According to one aspect of the present invention, the column pit coal slime crushing and adsorption device further includes a multi-degree-of-freedom drive mechanism: a swinging component, a cleaning support component, and a second rotary structure. The swinging component is located at the end of the third boom, and the cleaning support component is connected to the swinging component. The swinging component is used to drive the cleaning support component to swing. The second rotary structure is located on the cleaning support component and is used to drive the cleaning mechanism to rotate.

[0012] According to one aspect of the present invention, the multi-degree-of-freedom drive mechanism of the column pit coal slime crushing and adsorption device further includes a sensing element, which is disposed on the cleaning support and is used to realize the positioning of the multi-degree-of-freedom drive mechanism.

[0013] According to one aspect of the present invention, the coal slime crushing and adsorption device for a pillar pit includes a cleaning mechanism comprising: a tunneling attachment, a wire brush, and a drill bit attachment, wherein the tunneling attachment is fixedly connected to the wire brush, and the drill bit attachment is detachably connected to the wire brush.

[0014] According to one aspect of the present invention, the coal slime crushing and adsorption device for a column pit is further provided with a moving mechanism on the main body of the device, and the moving mechanism is provided on the support frame of the main body of the device.

[0015] According to one aspect of the present invention, the inner wall and bottom of the storage box of the coal slime crushing and adsorption device for the column pit are made of anti-sticking material.

[0016] According to one aspect of the present invention, the coal slime crushing and adsorption device for column pits has an anti-rust coating on the inner wall and bottom of the storage box.

[0017] The bottom of the storage bin is also equipped with a lifting device, which is used to realize the automatic unloading of the storage bin.

[0018] The above-mentioned technical solution adopted in this utility model embodiment can achieve the following beneficial effects: In the above-mentioned column pit coal slime crushing and adsorption device, the fixed end of the multi-degree-of-freedom drive mechanism is located on the main body of the device, and the cleaning mechanism is located at the output end of the multi-degree-of-freedom drive mechanism. The multi-degree-of-freedom drive mechanism drives the cleaning mechanism to move and position flexibly in three-dimensional space, which can adapt to column pits of different shapes and depths, realize all-round coal slime cleaning operations without dead angles, and is suitable for complex environments such as column pits of hydraulic supports in coal mines. Based on this, the cleaning mechanism can process coal slime in different states in steps or simultaneously, significantly improving the cleaning efficiency. On this basis, the negative pressure fan and the storage tank are connected through the first pipe, and the storage tank and the cleaning mechanism are connected through the second pipe. The negative pressure fan, the first pipe and the second pipe form a high-efficiency negative pressure adsorption channel. When the cleaning mechanism cleans the coal slime in the column pit, the storage tank is under negative pressure, and the coal slime is sucked through the end of the second pipe, thereby completing the cleaning of the column pit coal slime. This effectively solves the problem that the existing automated cleaning equipment has a single function and cannot meet the needs of multiple working conditions. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the column pit coal slime crushing and adsorption device provided as an example of this utility model;

[0021] Figure 2 This is a schematic diagram of a multi-degree-of-freedom drive mechanism provided as an example of this utility model;

[0022] Figure 3 An exploded schematic diagram of the cleaning mechanism provided as an example of this utility model.

[0023] Figure label:

[0024] 1 - Main body of the device; 11 - Main body support frame of the device; 12 - Moving mechanism; 13 - Lithium battery box; 2 - Multi-degree-of-freedom drive mechanism; 201 - Support; 202 - First rotating structure; 203 - First arm section; 204 - First telescopic component; 205 - First through hole; 206 - Second through hole; 207 - Third through hole; 208 - Fourth through hole; 209 - Second telescopic component; 210 - Sixth through hole; 211 - Fifth through hole; 21 2 - Second boom section, 213 - Seventh through hole, 214 - Third telescopic component, 215 - Eighth through hole, 216 - Arc connector, 217 - Swing component, 218 - Third boom, 219 - Sensor component, 220 - Second rotating structure, 221 - Cleaning support component, 3 - Cleaning mechanism, 31 - Tunneling attachment, 32 - Wire brush, 33 - Drill bit attachment, 4 - Negative pressure fan, 5 - Storage box, 6 - First pipe, 7 - Second pipe. Detailed Implementation

[0025] Embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. While some embodiments of the present invention are shown in the drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the accompanying drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0026] It should be understood that the steps described in the method embodiments of this utility model may be performed in different orders and / or in parallel. Furthermore, the method embodiments may include additional steps and / or omit the steps shown. The scope of this utility model is not limited in this respect.

[0027] The term "comprising" and its variations as used herein are open-ended, meaning "including but not limited to". The term "based on" means "at least partially based on". The term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one additional embodiment"; the term "some embodiments" means "at least some embodiments". Definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc., mentioned in this utility model are only used to distinguish different devices, modules, or units, and are not used to limit the order of functions performed by these devices, modules, or units or their interdependencies.

[0028] It should be noted that the terms "a" and "a plurality of" used in this utility model are illustrative rather than restrictive. Those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0029] The names of the messages or information exchanged between the multiple devices in this embodiment of the invention are for illustrative purposes only and are not intended to limit the scope of these messages or information.

[0030] During coal mining and equipment maintenance, coal sludge easily accumulates in the hydraulic support column pits, especially after long-term drying, forming hard lumps that are difficult to clean. Traditional cleaning methods mainly rely on manual labor using tools such as shovels and brushes, which is labor-intensive, inefficient, and poses safety hazards. While existing automated cleaning equipment can reduce manual intervention, its robotic arms lack precision, making it difficult to handle hard coal sludge or access narrow spaces. Furthermore, the equipment is bulky and difficult to move in the confined environment of mines.

[0031] Current technologies primarily target sludge or wastewater cleaning, lacking solutions for crushing, sweeping, and collecting dried coal sludge. This results in incomplete cleaning and a high risk of secondary pollution. While some existing robotic arm structures can improve operational precision, their functionality is limited and cannot meet the cleaning needs of complex coal mine environments.

[0032] To address the aforementioned problems, an exemplary embodiment of this utility model provides a coal slime crushing and adsorption device for column pits, thereby solving the problem that existing automated cleaning equipment has limited functionality and cannot meet the needs of multiple operating conditions.

[0033] The following will describe in detail, with reference to the accompanying drawings, a column pit coal slime crushing and adsorption device according to an embodiment of the present utility model.

[0034] Figure 1 This is a schematic diagram of the structure of the column pit coal slime crushing and adsorption device provided as an example of the present invention. Figure 1 As shown, a column pit coal slime crushing and adsorption device includes: a main body 1, a multi-degree-of-freedom drive mechanism 2, a cleaning mechanism 3, a negative pressure fan 4, a storage tank 5, a first pipe 6, and a second pipe 7. The fixed end of the multi-degree-of-freedom drive mechanism 2 is located on the main body 1, and the cleaning mechanism 3 is located at the output end of the multi-degree-of-freedom drive mechanism 2. The negative pressure fan 4 is connected to the storage tank 5 through the first pipe 6, and the storage tank 5 is connected to the cleaning mechanism 3 through the second pipe 7. The cleaning mechanism 3 is used to clean the coal slime in the column pit.

[0035] In practical applications, such as Figure 1As shown, the fixed end of the multi-degree-of-freedom drive mechanism 2 is located on the main body 1 of the device, and the cleaning mechanism 3 is located at the output end of the multi-degree-of-freedom drive mechanism 2. The multi-degree-of-freedom drive mechanism 2 drives the cleaning mechanism 3 to move and position flexibly in three-dimensional space, adapting to column pits of different shapes and depths, and realizing all-round coal sludge cleaning operations without dead angles. It is suitable for complex environments such as column pits of hydraulic supports in coal mines. Based on this, the cleaning mechanism 3 can process coal sludge in different states in steps or simultaneously, significantly improving cleaning efficiency. On this basis, the negative pressure fan 4 is connected to the storage tank 5 through the first pipe 6, and the storage tank 5 is connected to the cleaning mechanism 3 through the second pipe 7. The negative pressure fan 4, the first pipe 6, and the second pipe 7 form a highly efficient negative pressure adsorption channel. When the cleaning mechanism 3 cleans the coal sludge in the column pit, the storage tank 5 is under negative pressure, and the coal sludge is sucked through the end of the second pipe 7, thereby completing the cleaning of the coal sludge in the column pit. This effectively solves the problem that existing automated cleaning equipment has a single function and cannot meet the needs of multiple working conditions.

[0036] In one alternative approach, Figure 2 This is a schematic diagram of the multi-degree-of-freedom drive mechanism 2 provided as an example of the present invention, as shown below. Figure 2 As shown, the multi-degree-of-freedom drive mechanism 2 includes a first rotary structure 202, a support 201, a first arm 203, and a first telescopic member 204. The first rotary structure 202 is fixed on the support frame of the main body 1 of the device. The support 201 is used to fix the first rotary mechanism. The fixed end of the first arm 203 is rotatably connected to the support 201. It can be understood that the support 201 is provided with a first through hole 205 and a second through hole 206. The fixed end of the first arm 203 is rotatably connected to the first through hole 205. One end of the first telescopic member 204 is rotatably connected to the support 201. In fact, the first telescopic rod is connected to the second through hole 206 of the support 201. The other end of the first telescopic member 204 is connected to the middle part of the first arm 203. The first telescopic member 204 is used to drive the first arm 203 to pitch.

[0037] In practical applications, the first arm section 203 is connected to the first through hole 205, or the first telescopic member 204 is connected to the second through hole 206 via a pin or bolt. Details are omitted here, but taking the bolt connection as an example, this allows the first arm section 203 or the first telescopic member 204 to be separated without tools, reducing maintenance time. The support 201 uses the first through hole 205 as the fulcrum for the rotation of the first arm section 203, and the second through hole 206 as the hinge point for the first telescopic member 204. The fulcrum, hinge point, and the connection point between the first telescopic member and the middle section of the first arm section 203 form a stable triangular mechanical structure. When the first telescopic member 204 extends or retracts, a thrust is applied through the second through hole 206, driving the first arm section 203 to pitch with the first through hole 205 as the fulcrum. This effectively improves force transmission efficiency and reduces torque loss compared to traditional single-point drive. Simultaneously, the coaxial design of the double through holes ensures that the first arm section 203 rotates without swaying.

[0038] For example, such as Figure 2 As shown, the multi-degree-of-freedom drive mechanism 2 also includes a second arm 212 and a second telescopic member 209. The second arm 212 is rotatably connected to the output end of the first arm 203. One end of the second telescopic member 209 is connected to the middle part of the first arm 203, and the other end of the second telescopic member 209 is connected to the end of the second arm 212. The second telescopic member 209 is used to drive the second arm 212 to pitch.

[0039] In practical applications, such as Figure 2 As shown, the first arm 203 has an arc-shaped structure, and the middle part of the first arm 203 is provided with a third through hole 207 and a fourth through hole 208. The first telescopic member 204 is connected to the third through hole 207, and the second telescopic member 209 is connected to the fourth through hole 208. The output end of the first arm 203 is provided with a fifth through hole 211, and the end of the second arm 212 is provided with a sixth through hole 210. The second arm 212 is rotatably connected to the output end of the first arm 203. In practice, it can be understood that the second arm 212 is connected to the fifth through hole 211, and the second telescopic member 209 is connected to the sixth through hole 210. The connection between the first telescopic member 204, the second telescopic member 209, the first arm 203, and the second arm 212 and each through hole is a pin connection or a bolt connection, which will not be described in detail here.

[0040] For example, such as Figure 2 As shown, the multi-degree-of-freedom drive mechanism 2 also includes a third boom 218, a third telescopic member 214, and an arc-shaped connector 216. The end of the third boom 218 is connected to the second boom 212 via the arc-shaped connector 216. One end of the third telescopic member 214 is connected to the middle part of the second boom 212, and the other end of the third telescopic member 214 is connected to the arc-shaped connector 216. The third telescopic member 214 is used to drive the third boom 218 to pitch.

[0041] In practical applications, such as Figure 2 As shown, a seventh through hole 213 is provided in the middle part of the second arm 212, and an eighth through hole 215 is provided at the output end of the second arm 212. One end of the third telescopic member 214 is connected to the middle part of the second arm 212, or it can be understood that the third telescopic member 214 is connected to the seventh through hole 213. The other end of the third telescopic member 214 is connected to the arc connector 216. The end of the third boom 218 is connected to the end of the second arm 212 through the arc connector 216. The entire connection end forms a four-bar linkage mechanism. The movement of the third telescopic member 214 drives the linkage mechanism to move in tandem, and finally realizes the pitch movement of the third boom 218.

[0042] For example, such as Figure 2 As shown, the swing member 217 is located at the end of the third boom 218, the cleaning support member 221 is connected to the swing member 217, the swing member 217 is used to drive the cleaning support member 221 to swing, and the second rotary structure 220 is located on the cleaning support member 221. The second rotary structure 220 is used to drive the cleaning mechanism 3 to rotate.

[0043] For example, the multi-degree-of-freedom drive mechanism 2 also includes a sensor 219, which is disposed on the cleaning support 221. It should be understood that the sensor 219 can be a six-dimensional force sensor. The sensor 219 is used to realize the positioning of the multi-degree-of-freedom drive mechanism 2. When the cleaning mechanism 3 cleans the coal sludge in the column pit, it can respond to the force feedback of the operator in real time and accurately execute the task.

[0044] Figure 3 This is an exploded view of the cleaning mechanism 3 provided as an example of the present invention, as shown in the figure. Figure 3 As shown, the tunneling attachment 31 is fixedly connected to the wire brush 32, while the drill bit attachment 33 is detachably connected to the wire brush 32. Since the cleaning mechanism typically withstands high impact and vibration loads during operation, the detachable connection between the drill bit attachment 33 and the wire brush 32 facilitates replacement. Simultaneously, the wire brush 32 and the attachment form a rigid whole, preventing the risk of detachment due to loosening and ensuring operational safety. While severe wear of the wire brush 32 may necessitate replacement of the entire attachment, the fixed connection simplifies the manufacturing process, potentially lowering initial production costs and making it suitable for scenarios requiring long-term use of the same attachment set. For hardened coal sludge after air drying, the cleaning efficiency is significantly improved, enabling deep penetration and cleaning of stubborn areas where coal sludge adheres, overcoming the limitations of traditional equipment that can only perform surface cleaning.

[0045] like Figure 1As shown, the main body 1 of the device is also equipped with a moving mechanism 12, which is mounted on the support frame of the main body 1. It should be understood that the moving mechanism 12 can be a pulley or sliding frame structure, which will not be listed here. The inner wall and bottom of the storage bin 5 are made of anti-stick material. Both the inner wall and bottom of the storage bin 5 are coated with an anti-rust coating. A lifting component is also provided at the bottom of the storage bin 5 to automatically unload materials from the storage bin 5.

[0046] In practical applications, such as Figure 1 As shown, a storage tank 5 is installed at the rear of the device. The inner wall and bottom of the tank are made of anti-adhesion material to ensure that no coal slime remains, and an anti-rust coating is applied to the surface. Meanwhile, a lifting device is installed at the bottom of the storage tank 5. It should be understood that the lifting device can be a lifting cylinder or other lifting device, capable of automatic unloading. When the coal slime reaches a certain amount, the automatic unloading program is activated, and the operator is notified via feedback signal. The vehicle is then remotely guided to the designated unloading area. It is understood that the above control logic is a simple control logic used to control the automatic unloading.

[0047] like Figure 1 As shown, lithium battery boxes 13 are installed on both sides of the middle part of the main body 1 of the device. The lithium batteries are symmetrically placed on the main body support frame 11. An operating table is installed on the right side of the main body support frame 11. A motor driver is installed under the operating table and embedded in the main body support frame 11. The installation on the right side of the main body support frame 11 can avoid obstructing the operator's view in front. At the same time, the main body support frame 11 structure supports the operating table, reducing the space occupied by independent brackets.

[0048] The above description is merely an illustration of some embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that the scope of this utility model is not limited to the specific combinations of the above-described technical features, but also includes other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features of this utility model that have similar functions.

[0049] While specific embodiments of the present invention have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Those skilled in the art should understand that modifications can be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A coal slime crushing and adsorption device for column pits, characterized in that, The column pit coal slime crushing and adsorption device includes: a device body, a multi-degree-of-freedom drive mechanism, a cleaning mechanism, a negative pressure fan, a storage tank, a first pipe and a second pipe. The fixed end of the multi-degree-of-freedom drive mechanism is located on the device body, and the cleaning mechanism is located at the output end of the multi-degree-of-freedom drive mechanism. The negative pressure fan is connected to the storage tank through the first pipe, and the storage tank is connected to the cleaning mechanism through the second pipe. The cleaning mechanism is used to clean the coal slurry in the column pit.

2. The column pit coal slime crushing and adsorption device according to claim 1, characterized in that, The multi-degree-of-freedom drive mechanism includes: a first rotary structure, a support, a first arm section, and a first telescopic member. The first rotary structure is fixed on the support frame of the main body of the device. The support is used to fix the first rotary structure. The fixed end of the first arm section is rotatably connected to the support. One end of the first telescopic member is rotatably connected to the support. The other end of the first telescopic member is connected to the middle part of the first arm section. The first telescopic member is used to drive the first arm section to pitch.

3. The column pit coal slime crushing and adsorption device according to claim 2, characterized in that, The multi-degree-of-freedom drive mechanism further includes: a second arm and a second telescopic member. The second arm is rotatably connected to the output end of the first arm. One end of the second telescopic member is connected to the middle part of the first arm, and the other end of the second telescopic member is connected to the end of the second arm. The second telescopic member is used to drive the second arm to pitch.

4. The column pit coal slime crushing and adsorption device according to claim 3, characterized in that, The multi-degree-of-freedom drive mechanism further includes: a third boom and a third telescopic member, and an arc-shaped connector. The end of the third boom is connected to the second boom section through the arc-shaped connector. One end of the third telescopic member is connected to the middle part of the second boom section, and the other end of the third telescopic member is connected to the arc-shaped connector. The third telescopic member is used to drive the pitch movement of the third boom.

5. The column pit coal slime crushing and adsorption device according to claim 4, characterized in that, The multi-degree-of-freedom drive mechanism further includes: a swing member, a cleaning support member, and a second rotary structure. The swing member is located at the end of the third boom, and the cleaning support member is connected to the swing member. The swing member is used to drive the cleaning support member to swing. The second rotary structure is located on the cleaning support member and is used to drive the cleaning mechanism to rotate.

6. The column pit coal slime crushing and adsorption device according to claim 5, characterized in that, The multi-degree-of-freedom drive mechanism also includes a sensor, which is disposed on the cleaning support and is used to position the multi-degree-of-freedom drive mechanism.

7. The column pit coal slime crushing and adsorption device according to any one of claims 1-6, characterized in that, The cleaning mechanism includes: a tunneling attachment, a wire brush, and a drill bit attachment. The tunneling attachment is fixedly connected to the wire brush, and the drill bit attachment is detachably connected to the wire brush.

8. The column pit coal slime crushing and adsorption device according to claim 7, characterized in that, The main body of the device is also provided with a moving mechanism, which is mounted on the support frame of the main body of the device.

9. The column pit coal slime crushing and adsorption device according to claim 7, characterized in that, The inner wall and bottom of the storage box are made of non-stick material.

10. The column pit coal slime crushing and adsorption device according to claim 7, characterized in that, The inner wall and bottom of the storage box are coated with an anti-rust coating. The bottom of the storage box is also equipped with a lifting device, which is used to realize the automatic unloading of the storage box.