Coal briquette grinding device for coal sample detection

Abstract

The invention relates to the technical field of coal sample detection, and discloses a coal briquette grinding device for coal sample detection, which comprises a device body, four groups of grinding cavities arranged among five groups of partition plates, and mounting cavities arranged on two sides of an inner cavity of the device body, the coal sample processing part is arranged in an inner cavity of the device body, and the vibration cleaning part is arranged on the coal sample processing part. According to the coal briquette grinding device for coal sample detection, through the arrangement of the four sets of grinding cavities and the grinding rollers in the device body, various coal samples can be treated at the same time, the total time needed for grinding is remarkably shortened, and compared with a traditional device which can only grind one coal sample at a time, the grinding efficiency can be greatly improved; and meanwhile, due to the design that one group of first motors drive four pairs of grinding rollers to rotate and grind, equipment resources are utilized more sufficiently, and each pair of grinding rollers can work independently and do not interfere with one another in the grinding process.

Description

Technical Field

[0001] The invention relates to the technical field of coal sample detection, and in particular to a coal block grinding device used for coal sample detection. Background Art

[0002] Coal sampling testing in open-pit coal mines is an indispensable and important part of coal production, processing and utilization. The main purpose of coal sampling testing in open-pit coal mines is to understand the quality characteristics of coal, including moisture, ash, volatile matter, sulfur and elemental composition, so as to provide a scientific basis for coal production, processing and utilization. Through testing, it can ensure that the quality of coal meets relevant standards and requirements, and improve the utilization rate and economic benefits of coal.

[0003] In open-pit coal mines, representative coal samples are collected from coal piles or coal seams in accordance with national standards and sampling methods. During the sampling process, care should be taken to avoid the influence of non-coal fossils such as local coal, tailings and gangue to ensure the authenticity and representativeness of the coal samples. During preparation, the collected coal samples are crushed by a grinding device and prepared into standard samples suitable for analysis. During the preparation process, care should be taken to control the particle size and moisture content of the coal samples to ensure the uniformity and stability of the coal samples. Finally, chemical and physical methods are used to analyze the various quality indicators of the coal samples, including total moisture, analytical moisture, ash, volatile matter, fixed carbon, total sulfur and elemental analysis. These analysis items can comprehensively reflect the quality characteristics and utilization value of coal.

[0004] The coal block grinding device currently used for coal sample testing still has the following shortcomings in actual use. The current grinding device can only grind one coal sample at a time, which means that when multiple coal samples need to be tested, the grinding operations must be performed in sequence, which not only increases the number of operations, but also prolongs the overall detection time and reduces the detection efficiency. Especially when the coal quality detection and analysis tasks are heavy, this inefficient operation method will seriously affect the detection progress and result output. Summary of the invention

[0005] In view of the fact that the above-mentioned existing grinding device can only grind one coal sample at a time, it means that when multiple coal samples need to be tested, the grinding operation must be performed in sequence, which not only increases the number of operations, but also prolongs the overall detection time and reduces the detection efficiency. Especially when the coal quality detection and analysis tasks are heavy, this inefficient operation method will seriously affect the detection progress and result output, and the present invention is proposed.

[0006] Therefore, the purpose of the present invention is to provide a coal block grinding device for coal sample detection, which aims to: process multiple coal samples at the same time, significantly shorten the total time required for grinding, and greatly improve the grinding efficiency compared with traditional devices that can only grind one coal sample at a time.

[0007] In order to solve the above technical problems, the present invention provides the following technical solutions: a coal block grinding device for coal sample detection, comprising a device body, five groups of partition plates arranged in the inner cavity of the device body, four groups of grinding chambers arranged between the five groups of partition plates, mounting chambers arranged on both sides of the inner cavity of the device body, four groups of feed ports arranged on the top of the device body, and the four groups of feed ports and the four groups of grinding chamber inner cavities are interconnected, a coal sample processing component arranged in the inner cavity of the device body, and a vibration cleaning component arranged on the coal sample processing component;

[0008] The coal sample processing component includes a grinding assembly arranged in the grinding chamber and the mounting chamber, a fixing assembly arranged on the grinding assembly, the grinding assembly including two groups of positioning columns arranged at the top of the mounting chamber, and the bottom of the positioning columns and the bottom of the mounting chamber are connected to each other, a sleeve block arranged on the surface of the positioning column, a connecting port arranged at the top of one side of the partition plate, and the connecting port penetrates the partition plate, a rotating shaft arranged on one side of two groups of sleeve blocks in one group of the mounting chamber, and one end of the rotating shaft penetrates five groups of partition plates through the connecting port, one end of the two groups of rotating shafts penetrates five groups of partition plates and one side of the two groups of sleeve blocks in another group of the mounting chamber for rotational connection, and four groups of grinding rollers are arranged on the surface of the rotating shaft, and the four groups of grinding rollers are respectively located in the four groups of grinding chamber cavities.

[0009] As a preferred embodiment of the coal block grinding device for coal sample detection described in the present invention, the grinding assembly also includes a first gear arranged at one end of the two groups of rotating shaft surfaces, and the two groups of the first gears are meshed with each other, a first motor arranged between the two groups of the sets in a mounting cavity, a second gear arranged at the output end of the first motor and one end of the rotating shaft surface of a group, and the two groups of the second gears are meshed with each other, and second through ports arranged at the top of both sides of the device body, and the second through ports and the inner cavity of the mounting cavity are connected to each other.

[0010] As a preferred solution of the coal block grinding device for coal sample detection described in the present invention, wherein: a feed hopper is arranged in the inner cavity of the grinding chamber and below the grinding roller, a feed channel is arranged at the bottom of the feed hopper, four groups of first through ports are arranged at one end of the device body, and the four groups of first through ports are respectively communicated with four groups of grinding chamber inner cavities, two groups of T-shaped limit grooves are arranged at the bottom of the inner cavity of the grinding chamber, a T-shaped support base is arranged on the inner side of the T-shaped limit groove, and a collecting seat is arranged on the top of the T-shaped support base, and one end of the collecting seat extends to the outside of the device body through the first through port.

[0011] As a preferred solution of the coal block grinding device for coal sample detection described in the present invention, the fixing component includes a U-shaped frame arranged in the inner cavity of the installation cavity, the two ends of the U-shaped frame and the two sets of sets of blocks in the inner cavity of the installation cavity are connected to each other on the side away from the rotating shaft, and the U-shaped frame extends to the outside of the device body through the second through opening, a limiting hole is arranged on one side of the U-shaped frame, and the limiting hole passes through the U-shaped frame, a pull rod is arranged on the inner side of the limiting hole, and the pull rod slides through the U-shaped frame through the limiting hole, a connecting plate is arranged at one end of the pull rod at the inner side of the U-shaped frame, a connecting hole is arranged on the side of the set block away from the rotating shaft, a plug hole is arranged at the top of one side of the surface of the positioning column, an insertion rod is arranged at both ends of the side of the connecting plate away from the pull rod, and one end of the insertion rod passes through the connecting hole and extends to the inside of the plug hole, and a first spring is arranged on the surface of the insertion rod and close to one side of the connecting plate, one end of the first spring and one side of the connecting plate are connected to each other, and the other end of the first spring and one side of the set block surface are connected to each other.

[0012] As a preferred solution of the coal grinding device for coal sample detection described in the present invention, the fixing assembly further includes a plurality of groups of limiting slots arranged on the inner side of the limiting hole, and a plurality of groups of limiting blocks arranged on the surface of the pull rod.

[0013] As a preferred embodiment of the coal block grinding device for coal sample detection described in the present invention, the coal sample processing component also includes an auxiliary unloading component arranged in the inner cavity of the grinding chamber, the auxiliary unloading component includes a first rotating rod arranged in the inner cavity of the device body, and the first rotating rod passes through five groups of partition plates, and both ends of the first rotating rod extend to the inner cavity of the installation chamber, four groups of first eccentric wheels are arranged on the surface of the first rotating rod, and the four groups of the first eccentric wheels are respectively located in the inner cavities of the four grinding chambers, a first pulley is arranged at one end of the surface of the first rotating rod and one end of a group of the rotating shaft surfaces, and the first pulley is located in a group of the inner cavities of the installation chamber, and a first transmission belt is arranged on the surfaces of two groups of the first pulleys.

[0014] As a preferred embodiment of the coal block grinding device for coal sample detection described in the present invention, the auxiliary unloading component also includes a lifting and shrinking rod arranged on both sides of the two ends of the bottom of the unloading hopper, and the bottom end of the lifting and shrinking rod is connected to the bottom of the inner cavity of the grinding chamber, and a second spring is arranged on the surface of the lifting and shrinking rod, one end of the second spring is connected to the bottom of the unloading hopper, and the other end of the second spring is connected to the bottom of the inner cavity of the grinding chamber.

[0015] As a preferred embodiment of the coal block grinding device for coal sample detection described in the present invention, the vibration cleaning component includes a third spring arranged on the surface of the positioning column and located below the sleeve block, a fourth spring arranged on the surface of the positioning column and located above the sleeve block, a second rotating rod arranged in the inner cavity of the device body, and the second rotating rod passes through five groups of partition plates, and both ends of the second rotating rod extend to the inner cavities of two groups of mounting cavities, a second motor is arranged at one end of one side of a group of partition plates, and the second motor is located in a group of mounting cavities, and the output end of the second motor and one end of the second rotating rod are connected to each other.

[0016] As a preferred solution of the coal block grinding device for coal sample detection described in the present invention, the vibration cleaning component also includes a third rotating rod arranged on one side of the inner cavity of the installation cavity, and one end of the third rotating rod and one side of a group of the partition plates are connected to each other, a connecting bottom block arranged at the bottom of the two groups of the sets of blocks in the inner cavity of the installation cavity, a second eccentric wheel arranged on the surface of the third rotating rod and located below the connecting bottom block, a second pulley arranged at both ends of the surface of the second rotating rod and at one end of the surface of the third rotating rod, and the surface of the second pulley is sleeved with a second transmission belt, the second pulley and the second transmission belt are located in the inner cavity of the installation cavity, and an auxiliary grinding component arranged on the top of the set block.

[0017] As a preferred embodiment of the coal block grinding device for coal sample detection described in the present invention, the auxiliary grinding assembly includes a mounting side plate arranged on one side of the top of the two sets of blocks in the inner cavity of the mounting chamber, a mounting cross plate arranged on the side where the two sets of mounting side plates are close to each other, and the mounting cross plate is located above the grinding roller and passes through the five sets of partition plates through the connecting port, and a feed channel is arranged on the top of the mounting cross plate, and the feed channel passes through the mounting cross plate, and the top of the feed channel extends to the top of the device body through the feed port.

[0018] Beneficial effects of the present invention:

[0019] 1. The present invention can process multiple coal samples at the same time by arranging four groups of grinding chambers and grinding rollers in the device body, which significantly shortens the total time required for grinding. Compared with the traditional device that can only grind one coal sample at a time, the grinding efficiency can be greatly improved. At the same time, when a group of first motors drives four pairs of grinding rollers to rotate and perform grinding operations, the equipment resources are more fully utilized. During the grinding process, each pair of grinding rollers can work independently without interfering with each other, thereby realizing the maximum utilization of resources.

[0020] 2. The present invention, through the mutual adaptation of the first pulley and the first transmission belt, can drive the first rotating rod to rotate when the rotating shaft rotates, and then drive the first eccentric wheel to rotate eccentrically and knock and vibrate the bottom of the lower hopper, so that the ground coal sample can fall onto the lower hopper, thereby being able to accurately and efficiently awaken the coal sample particles in the lower hopper, freeing them from the constraints of static friction and leaping down in a more fluent posture, and at the same time promoting the uniform mixing and rapid flow of the ground coal sample, which helps the ground coal sample to be discharged smoothly from the lower hopper, and avoids the accumulation and retention of the ground coal sample in the lower hopper.

[0021] 3. The present invention, through the setting of the vibrating cleaning component, can vibrate the multiple groups of grinding rollers on the two groups of rotating shafts, and at the same time start the first motor to drive the grinding rollers on the rotating shafts to rotate, cooperate with the upper and lower vibrating grinding rollers and the rotation of the grinding rollers themselves, so as to more thoroughly clean the coal sample debris thereon, and at the same time, the feed channel and the lower hopper follow the vibration, so that the coal sample debris in the grinding chamber can be vibrated and discharged into the collection seat for storage, and the coal sample debris on the grinding roller is more easily shaken off by the generated vibration, and this vibration combined with the rotation of the grinding roller forms a dynamic cleaning process, which can quickly and effectively remove the coal sample debris attached to the surface of the grinding roller, and effectively prevent the coal sample debris from accumulating on the grinding roller, thereby keeping the grinding roller clean, and the clean grinding roller and the device can ensure the accuracy and representativeness of the coal sample, improve the accuracy of coal quality detection, and provide reliable data support for subsequent coal utilization and quality control.

[0022] 4. The present invention, through the setting of the feed channel, can make the lump coal sample to be ground fall accurately between the two groups of grinding rollers, thereby avoiding the deviation or scattering of the coal blocks during the grinding process, ensuring that the grinding rollers can fully and evenly act on the coal blocks, and improving the grinding efficiency. At the same time, the feed channel also has a certain safety function. It limits the splashing and scattering of coal blocks during the grinding process, and also helps to prevent the debris generated during the grinding process from entering the non-working area of ​​the device, thereby avoiding potential safety hazards and ensuring the overall cleanliness of the inside of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0024] Figure 1 The figure is a schematic diagram of the overall structure of the coal block grinding device used for coal sample detection according to the present invention.

[0025] Figure 2 It is a schematic diagram of the front and cross-sectional stereoscopic structure of the coal block grinding device for coal sample detection of the present invention.

[0026] Figure 3 It is a schematic diagram of the expanded three-dimensional structure of the coal block grinding device for coal sample detection of the present invention.

[0027] Figure 4 It is a side view and a cross-sectional perspective structural diagram of a coal block grinding device for coal sample detection according to the present invention.

[0028] Figure 5 It is a top view and a cross-sectional three-dimensional structure schematic diagram of a coal block grinding device for coal sample detection according to the present invention.

[0029] Figure 6 It is a schematic diagram of the internal three-dimensional structure of the coal block grinding device used for coal sample detection of the present invention.

[0030] Figure 7 It is a schematic diagram of the internal three-dimensional structure of the coal block grinding device for coal sample detection of the present invention from another perspective.

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the coal sample processing component of the coal block grinding device for coal sample detection of the present invention.

[0032] Fig. 9 It is a schematic diagram of the three-dimensional structure of the fixed components of the coal block grinding device for coal sample detection of the present invention.

[0033] Fig.10 It is a partial cross-sectional three-dimensional structural schematic diagram of the fixing assembly of the coal block grinding device for coal sample detection of the present invention.

[0034] Description of reference numerals:

[0035] 1. Device body; 11. Separator; 12. Grinding chamber; 13. Mounting chamber; 14. Feeding port; 15. Feeding hopper; 16. Feeding channel; 17. Collecting seat; 18. First opening; 19. T-shaped limiting groove; 10. T-shaped supporting base;

[0036] 2. Coal sample processing components; 21. Grinding assembly; 211. Positioning column; 212. Bushing block; 213. Communication port; 214. Rotating shaft; 215. Grinding roller; 216. First gear; 217. First motor; 218. Second gear; 219. Second communication port; 22. Fixing assembly; 221. U-shaped frame; 222. Pull rod; 223. Connecting plate; 224. Communication hole; 225. Insertion hole; 226. Insertion rod; 227. First spring; 228. Limiting hole; 229. Limiting slot; 220. Limiting block; 23. Auxiliary unloading assembly; 231. First rotating rod; 232. First eccentric wheel; 233. First pulley; 234. First transmission belt; 235. Retracting rod; 236. Second spring;

[0037] 3. Vibration cleaning component; 31. Third spring; 32. Fourth spring; 33. Second rotating rod; 34. Second motor; 35. Third rotating rod; 36. Connecting bottom block; 37. Second eccentric wheel; 38. Second pulley; 39. Second transmission belt; 30. Auxiliary grinding assembly; 301. Install side panel; 302. Install cross panel; 303. Feed channel. DETAILED DESCRIPTION

[0038] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0040] Example 1

[0041] Reference Figure 1-10 , which is the first embodiment of the present invention, provides a coal block grinding device for coal sample detection, the coal block grinding device for coal sample detection comprises a device body 1, and also comprises five groups of partition plates 11 fixedly installed in the inner cavity of the device body 1, four groups of grinding chambers 12 arranged between the five groups of partition plates 11, and mounting chambers 13 arranged on both sides of the inner cavity of the device body 1, and four groups of feed ports 14 are opened on the top of the device body 1, and the four groups of feed ports 14 and the inner cavities of the four groups of grinding chambers 12 are interconnected, so that the coal sample is conveniently put into the grinding chamber 12 for grinding operation, and the inner cavity of the device body 1 is divided into four groups of grinding chambers 12 and two groups of mounting chambers 13 by using the five groups of partition plates 11, a coal sample processing component 2 arranged in the inner cavity of the device body 1, and a vibration cleaning component 3 arranged on the coal sample processing component 2;

[0042] The coal sample processing component 2 includes a grinding component 21 arranged in the inner cavities of the grinding chamber 12 and the installation chamber 13, and a fixing component 22 arranged on the grinding component 21. The grinding component 21 includes two groups of positioning columns 211 fixed on the top of the inner cavity of the installation chamber 13, and the bottom of the positioning column 211 and the bottom of the inner cavity of the installation chamber 13 are connected to each other, a sleeve block 212 slidably sleeved on the surface of the positioning column 211, a connecting port 213 is opened on the top of one side of the partition plate 11, and the connecting port 213 penetrates the partition plate 11, a rotating shaft 214 rotatably connected to one side of the two groups of sleeve blocks 212 in the inner cavity of a group of installation chambers 13, and one end of the rotating shaft 214 penetrates five groups of partition plates 11 through the connecting port 213. The two groups of rotating shafts 214 penetrate one end of the five groups of partition plates 11 and one side of the two groups of sleeve blocks 212 in the inner cavity of another group of installation chambers 13 are rotatably connected, and four groups of grinding rollers 215 are fixedly sleeved on the surface of the rotating shaft 214, and the four groups of grinding rollers 215 are respectively located in the inner cavities of the four groups of grinding chambers 12.

[0043] The grinding assembly 21 also includes a first gear 216 fixedly mounted on one end of the surface of the two groups of rotating shafts 214, and the two groups of first gears 216 are meshed with each other to facilitate the synchronous rotation of the two groups of rotating shafts 214, a first motor 217 fixedly mounted between the two groups of sets of blocks 212 in the inner cavity of a group of mounting cavities 13, a second gear 218 fixedly mounted on the output end of the first motor 217 and one end of the surface of a group of rotating shafts 214, and the two groups of second gears 218 are meshed with each other, and a second through opening 219 is arranged at the top of both sides of the device body 1, and the second through opening 219 and the inner cavity of the mounting cavity 13 are connected to each other.

[0044] A feed hopper 15 is provided in the inner cavity of the grinding chamber 12 and below the grinding roller 215, a feed channel 16 connected to the bottom of the feed hopper 15, four groups of first openings 18 are provided at one end of the device body 1, and the four groups of first openings 18 are respectively connected to the four groups of inner cavities of the grinding chamber 12, two groups of T-shaped limit grooves 19 are provided at the bottom of the inner cavity of the grinding chamber 12, a T-shaped support base 10 slidably connected to the inner side of the T-shaped limit groove 19, and a collecting seat 17 fixedly installed on the top of the T-shaped support base 10, and one end of the collecting seat 17 extends to the outside of the device body 1 through the first opening 18, and the collecting seat 17 can be used to collect the ground coal sample. At the same time, the T-shaped limit groove 19 and the T-shaped support base 10 are adapted to each other, so that the collecting seat 17 can be conveniently moved out of the inner cavity of the grinding chamber 12, and the ground coal sample in the collecting seat 17 can be transferred and detected.

[0045] The fixing assembly 22 includes a U-shaped frame 221 fixedly installed in the inner cavity of the installation cavity 13, and the two ends of the U-shaped frame 221 and the side of the two sets of blocks 212 in the inner cavity of the installation cavity 13 away from the rotating shaft 214 are connected to each other, and the U-shaped frame 221 extends to the outside of the device body 1 through the second opening 219, and a limiting hole 228 is opened on one side of the U-shaped frame 221, and the limiting hole 228 passes through the U-shaped frame 221, and a pull rod 222 is slidably connected to the inner side of the limiting hole 228, and the pull rod 222 slides through the limiting hole 228 and passes through the U-shaped frame 221, and is rotatably connected to the pull rod 222 located on the inner side of the U-shaped frame 221. A connecting plate 223 at one end, a connecting hole 224 is provided on the side of the sleeve 212 away from the rotating shaft 214, a socket 225 is provided on the top of one side of the surface of the positioning column 211, and an insertion rod 226 is fixedly installed on both ends of the side of the connecting plate 223 away from the pull rod 222, and one end of the insertion rod 226 passes through the connecting hole 224 and extends to the inner side of the socket 225, and a first spring 227 is sleeved on the surface of the insertion rod 226 and close to one side of the connecting plate 223, one end of the first spring 227 is connected to one side of the connecting plate 223, and the other end of the first spring 227 is connected to one side of the surface of the sleeve 212.

[0046] The fixing assembly 22 further includes a plurality of groups of limiting slots 229 fixedly mounted on the inner side of the limiting hole 228 , and a plurality of groups of limiting blocks 220 disposed on the surface of the pull rod 222 .

[0047] During use, the first motor 217 is first started to drive the second gear 218 to rotate. Through the mutual meshing of the two sets of second gears 218, a set of rotating shafts 214 can be driven to rotate. The first gears 216 on the two sets of rotating shafts 214 are meshed with each other, and then the four sets of grinding rollers 215 on the two sets of rotating shafts 214 can be driven to rotate in the inner cavity of the grinding chamber 12 respectively.

[0048] Then, different lump coal samples are put into the device body 1 from the feed port 14 respectively. When the lump coal samples pass through the feed port 14 and enter the two sets of rotating grinding rollers 215, they can be crushed and ground by the grinding rollers 215. Then, the ground coal samples fall onto the discharge hopper 15, and finally fall into the collecting seat 17 through the discharge channel 16 for storage. When it is necessary to take the ground coal sample in the collecting seat 17 for detection, the collecting seat 17 can be directly pulled to make the T-shaped support base 10 on the collecting seat 17 slide in the T-shaped limit groove 19 in the grinding chamber 12, and the collecting seat 17 is moved out of the inner cavity of the grinding chamber 12. Then, the ground coal sample in the collecting seat 17 can be detected.

[0049] Example 2

[0050] Reference Figure 1-10, which is the second embodiment of the present invention. This embodiment is different from the first embodiment in that: the coal sample processing component 2 also includes an auxiliary unloading component 23 arranged in the inner cavity of the grinding chamber 12, and the auxiliary unloading component 23 includes a first rotating rod 231 rotating in the inner cavity of the device body 1, and the first rotating rod 231 passes through the five groups of partition plates 11, and the two ends of the first rotating rod 231 extend to the inner cavity of the installation cavity 13, four groups of first eccentric wheels 232 are fixedly mounted on the surface of the first rotating rod 231, and the four groups of first eccentric wheels 232 are respectively located in the inner cavities of the four groups of grinding chambers 12, a first pulley 233 fixedly mounted on one end of the surface of the first rotating rod 231 and one end of the surface of a group of rotating shafts 214, and the first pulley 233 is located in the inner cavity of a group of installation cavities 13, and a first transmission belt 234 is arranged on the surfaces of two groups of first pulleys 233.

[0051] The auxiliary unloading component 23 also includes a lifting and retracting rod 235 fixedly installed on both sides of the bottom of the lower hopper 15, and the bottom end of the lifting and retracting rod 235 is connected to the bottom of the inner cavity of the grinding chamber 12, and a second spring 236 is sleeved on the surface of the lifting and retracting rod 235, one end of the second spring 236 is connected to the bottom of the lower hopper 15, and the other end of the second spring 236 is connected to the bottom of the inner cavity of the grinding chamber 12. Through the pulling force of the second spring 236, the lifting and retracting rod 235 can be driven to contract and the lower hopper 15 can be moved downward, so that the bottom of the lower hopper 15 and the top of the first eccentric wheel 232 can contact each other.

[0052] During use, when the first motor 217 is started to drive the multiple groups of grinding rollers 215 on the two groups of rotating shafts 214 to rotate to grind the block coal sample, through the mutual adaptation of the first pulley 233 and the first transmission belt 234, when the rotating shaft 214 rotates, it can drive the first rotating rod 231 to rotate, and then drive the first eccentric wheel 232 to eccentrically rotate and knock and vibrate the bottom of the lower hopper 15, and then when the ground coal sample falls onto the lower hopper 15, the vibrating lower hopper 15 can make the coal sample fall more quickly and be transferred to the collecting seat 17, so as to avoid the accumulation of the ground coal sample in the lower hopper 15.

[0053] The remaining structures are the same as those of Example 1.

[0054] Example 3

[0055] Reference Figure 1-10, which is the third embodiment of the present invention. This embodiment is different from the second embodiment in that: the vibration cleaning component 3 includes a third spring 31 sleeved on the surface of the positioning column 211 and located below the sleeve block 212, a fourth spring 32 sleeved on the surface of the positioning column 211 and located above the sleeve block 212, a second rotating rod 33 rotatably connected to the inner cavity of the device body 1, and the second rotating rod 33 passes through the five groups of partition plates 11, and the two ends of the second rotating rod 33 extend to the inner cavities of the two groups of installation cavities 13, a second motor 34 fixedly installed at one end of one side of a group of partition plates 11, and the second motor 34 is located in a group of installation cavities 13, and the output end of the second motor 34 and one end of the second rotating rod 33 are connected to each other.

[0056] The vibration cleaning component 3 also includes a third rotating rod 35 rotatably connected to one side of the inner cavity of the installation cavity 13, and one end of the third rotating rod 35 is connected to one side of a group of partition plates 11, a connecting bottom block 36 fixedly installed at the bottom of the two sets of sets of blocks 212 in the inner cavity of the installation cavity 13, a second eccentric wheel 37 fixedly sleeved on the surface of the third rotating rod 35 and located below the connecting bottom block 36, a second pulley 38 fixedly sleeved on both ends of the surface of the second rotating rod 33 and one end of the surface of the third rotating rod 35, and the surface of the second pulley 38 is sleeved with a second transmission belt 39, the second pulley 38 and the second transmission belt 39 are located in the inner cavity of the installation cavity 13, and an auxiliary grinding assembly 30 arranged on the top of the set block 212, which utilizes the setting of the connecting bottom block 36 to play a buffering role when the second eccentric wheel 37 vibrates and strikes.

[0057] The auxiliary grinding assembly 30 includes a mounting side plate 301 fixedly mounted on one side of the top of the two sets of sets of blocks 212 in the inner cavity of the mounting cavity 13, a mounting transverse plate 302 fixedly mounted on the side close to each other of the two sets of mounting side plates 301, and the mounting transverse plate 302 is located above the grinding roller 215 and penetrates the five sets of partition plates 11 through the connecting port 213, and a feed channel 303 fixedly mounted on the top of the mounting transverse plate 302, and the feed channel 303 penetrates the mounting transverse plate 302, and the top of the feed channel 303 extends to the top of the device body 1 through the feed port 14, so as to limit the input lump coal sample and facilitate the grinding operation of the grinding roller 215.

[0058] During use, when the device is used to grind the lump coal sample, coal sample debris will remain in the gap of the grinding roller 215. If it is not cleaned, it is easy to cause contamination to the coal sample when grinding other coal samples, thereby reducing the detection accuracy. When cleaning is required, the pull rods 222 on both sides of the device body 1 are pulled to make the limiting block 220 on the pull rod 222 pass through the limiting slot 229. At this time, the connecting plate 223 is pulled, so that the two groups of plug rods 226 are moved out of the socket 225 on the positioning column 211, thereby canceling the fixation between the sleeve block 212 and the positioning column 211, so that the sleeve block 212 can slide up and down on the surface of the positioning column 211. At this time, the first spring 227 will also be stretched by force, and then the pull rod 222 is rotated to make the limiting block 220 rotate and misalign with the limiting slot 229, and then the plug rod 226 can be limited from retracting;

[0059] Then, the second motor 34 is started to drive the second rotating rod 33 to rotate, and then the second pulley 38 and the second transmission belt 39 are adapted to each other, which can drive the two sets of third rotating rods 35 to rotate synchronously, thereby driving the second eccentric wheel 37 on the third rotating rod 35 to rotate eccentrically, thereby intermittently knocking the connecting bottom block 36, and at the same time, the sleeve block 212 is continuously moved up and down on the surface of the positioning column 211, and the third spring 31 and the fourth spring 32 on the surface of the positioning column 211 are also continuously compressed and rebounded, thereby driving the two The multiple groups of grinding rollers 215 on the rotating shaft 214 are vibrated to shake off the coal sample debris in the gap of the grinding rollers 215. At the same time, the first motor 217 can be started to drive the grinding rollers 215 on the rotating shaft 214 to rotate, and the grinding rollers 215 are vibrated up and down and rotated by themselves to more thoroughly clean the coal sample debris thereon. At the same time, the feeding channel 303 and the lower hopper 15 follow the vibration, which is convenient for cleaning the coal sample debris adhered to the feeding channel 303 and the lower hopper 15. Finally, the debris falls into the collecting seat 17 for storage;

[0060] By providing a feed channel 303 between the two groups of grinding rollers 215, the lump coal sample can be more accurately fed between the two groups of grinding rollers 215 during the grinding operation, thereby avoiding the deviation of the lump coal and improving the grinding effect.

[0061] The remaining structure is the same as that of Example 2.

[0062] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A coal grinding device for coal sample detection, comprising a device body (1), characterized in that: It also includes five groups of partition plates (11) arranged in the inner cavity of the device body (1), four groups of grinding chambers (12) arranged between the five groups of partition plates (11), mounting chambers (13) arranged on both sides of the inner cavity of the device body (1), four groups of feed ports (14) arranged on the top of the device body (1), and the four groups of feed ports (14) and the inner cavities of the four groups of grinding chambers (12) are interconnected, a coal sample processing component (2) arranged in the inner cavity of the device body (1), and a vibration cleaning component (3) arranged on the coal sample processing component (2); The coal sample processing component (2) comprises a grinding assembly (21) arranged in the inner cavities of the grinding chamber (12) and the mounting chamber (13), a fixing assembly (22) arranged on the grinding assembly (21), the grinding assembly (21) comprising two groups of positioning columns (211) arranged at the top of the inner cavity of the mounting chamber (13), the bottom of the positioning columns (211) and the bottom of the inner cavity of the mounting chamber (13) being connected to each other, a sleeve block (212) arranged on the surface of the positioning columns (211), a connecting port (213) arranged at the top of one side of the partition plate (11), and the connecting port (213) 3) a rotating shaft (214) passing through the partition plate (11) and arranged on one side of two sets of sleeves (212) in the inner cavity of one group of the installation cavities (13), and one end of the rotating shaft (214) passing through five sets of partition plates (11) through a connecting port (213), one end of the two sets of rotating shafts (214) passing through five sets of partition plates (11) and one side of two sets of sleeves (212) in the inner cavity of another group of the installation cavities (13) being rotatably connected, and four sets of grinding rollers (215) arranged on the surface of the rotating shaft (214), and the four sets of grinding rollers (215) are respectively located in the inner cavities of the four sets of grinding cavities (12).

2. The coal block grinding device for coal sample detection according to claim 1 is characterized in that: The grinding assembly (21) further comprises a first gear (216) arranged at one end of the surface of the two groups of rotating shafts (214), and the two groups of the first gears (216) are meshed with each other; a first motor (217) arranged between the two groups of the sleeve blocks (212) in the inner cavity of a group of mounting chambers (13); a second gear (218) arranged at the output end of the first motor (217) and one end of the surface of the group of rotating shafts (214), and the two groups of the second gears (218) are meshed with each other; and a second through opening (219) arranged at the top of both sides of the device body (1), and the second through opening (219) and the inner cavity of the mounting chamber (13) are connected with each other.

3. The coal block grinding device for coal sample detection according to claim 2 is characterized in that: A material discharge hopper (15) is arranged in the inner cavity of the grinding chamber (12) and below the grinding roller (215); a material discharge channel (16) is arranged at the bottom of the material discharge hopper (15); four groups of first openings (18) are arranged at one end of the device body (1), and the four groups of first openings (18) are respectively connected to the four groups of inner cavities of the grinding chamber (12); two groups of T-shaped limit grooves (19) are arranged at the bottom of the inner cavity of the grinding chamber (12); a T-shaped support base (10) is arranged on the inner side of the T-shaped limit groove (19); and a collection seat (17) is arranged on the top of the T-shaped support base (10), and one end of the collection seat (17) extends to the outside of the device body (1) through the first opening (18).

4. The coal block grinding device for coal sample detection according to claim 3 is characterized in that: The fixing assembly (22) comprises a U-shaped frame (221) arranged in the inner cavity of the installation cavity (13), the two ends of the U-shaped frame (221) and the two sets of blocks (212) in the inner cavity of the installation cavity (13) are connected to each other on the side away from the rotating shaft (214), and the U-shaped frame (221) extends to the outside of the device body (1) through the second opening (219), a limiting hole (228) is arranged on one side of the U-shaped frame (221), and the limiting hole (228) passes through the U-shaped frame (221), a pull rod (222) is arranged on the inner side of the limiting hole (228), and the pull rod (222) passes through the limiting hole (228) to slide through the U-shaped frame (221), and the pull rod (222) is arranged in the U-shaped frame (221). A connecting plate (223) at one end of the side, a connecting hole (224) arranged on the side of the sleeve (212) away from the rotating shaft (214), a plug hole (225) arranged on the top of one side of the surface of the positioning column (211), an insertion rod (226) arranged at both ends of the side of the connecting plate (223) away from the pull rod (222), and one end of the insertion rod (226) passes through the connecting hole (224) and extends to the inside of the plug hole (225), a first spring (227) arranged on the surface of the insertion rod (226) and close to one side of the connecting plate (223), one end of the first spring (227) and one side of the connecting plate (223) are connected to each other, and the other end of the first spring (227) and one side of the surface of the sleeve (212) are connected to each other.

5. The coal block grinding device for coal sample detection according to claim 4, characterized in that: The fixing assembly (22) further comprises a plurality of groups of limiting slots (229) arranged inside the limiting hole (228), and a plurality of groups of limiting blocks (220) arranged on the surface of the pull rod (222).

6. The coal grinding device for coal sample detection according to claim 5, characterized in that: The coal sample processing component (2) also includes an auxiliary unloading component (23) arranged in the inner cavity of the grinding chamber (12), the auxiliary unloading component (23) including a first rotating rod (231) arranged in the inner cavity of the device body (1), and the first rotating rod (231) penetrates through five groups of partition plates (11), and both ends of the first rotating rod (231) extend to the inner cavity of the installation cavity (13), four groups of first eccentric wheels (232) arranged on the surface of the first rotating rod (231), and the four groups of the first eccentric wheels (232) are respectively located in the inner cavities of the four groups of grinding chambers (12), a first belt pulley (233) arranged at one end of the surface of the first rotating rod (231) and one end of the surface of a group of the rotating shafts (214), and the first belt pulley (233) is located in the inner cavity of one group of the installation cavities (13), and a first transmission belt (234) arranged on the surfaces of two groups of the first belt pulleys (233).

7. The coal block grinding device for coal sample detection according to claim 6, characterized in that: The auxiliary unloading component (23) also includes a lifting rod (235) arranged on both sides of the two ends of the bottom of the unloading hopper (15), and the bottom end of the lifting rod (235) is connected to the bottom of the inner cavity of the grinding chamber (12), and a second spring (236) is arranged on the surface of the lifting rod (235), one end of the second spring (236) is connected to the bottom of the unloading hopper (15), and the other end of the second spring (236) is connected to the bottom of the inner cavity of the grinding chamber (12).

8. The coal grinding device for coal sample detection according to claim 7, characterized in that: The vibration cleaning component (3) comprises a third spring (31) arranged on the surface of the positioning column (211) and located below the sleeve (212), a fourth spring (32) arranged on the surface of the positioning column (211) and located above the sleeve (212), a second rotating rod (33) arranged in the inner cavity of the device body (1), and the second rotating rod (33) passes through five groups of partition plates (11), and both ends of the second rotating rod (33) extend to the inner cavities of two groups of installation cavities (13), a second motor (34) arranged at one end of one side of one group of the partition plates (11), and the second motor (34) is located in one group of the installation cavities (13), and the output end of the second motor (34) and one end of the second rotating rod (33) are connected to each other.

9. The coal block grinding device for coal sample detection according to claim 8, characterized in that: The vibration cleaning component (3) also includes a third rotating rod (35) arranged on one side of the inner cavity of the installation cavity (13), and one end of the third rotating rod (35) and one side of a group of the partition plates (11) are connected to each other, a connecting bottom block (36) arranged at the bottom of the two groups of the sleeve blocks (212) in the inner cavity of the installation cavity (13), a second eccentric wheel (37) arranged on the surface of the third rotating rod (35) and located below the connecting bottom block (36), a second pulley (38) arranged at both ends of the surface of the second rotating rod (33) and one end of the surface of the third rotating rod (35), and the surface of the second pulley (38) is sleeved with a second transmission belt (39), the second pulley (38) and the second transmission belt (39) are located in the inner cavity of the installation cavity (13), and an auxiliary grinding component (30) arranged on the top of the sleeve block (212).

10. The coal block grinding device for coal sample detection according to claim 9, characterized in that: The auxiliary grinding assembly (30) includes a mounting side plate (301) arranged on one side of the top of the two sets of blocks (212) in the inner cavity of the mounting cavity (13), a mounting transverse plate (302) arranged on the side close to each other of the two sets of mounting side plates (301), and the mounting transverse plate (302) is located above the grinding roller (215) and passes through the five sets of partition plates (11) through the connecting port (213), and a feed channel (303) is arranged on the top of the mounting transverse plate (302), and the feed channel (303) passes through the mounting transverse plate (302), and the top end of the feed channel (303) extends to the top of the device body (1) through the feed port (14).

Images