Coal slime sampling device

Abstract

This utility model relates to a coal slime sampling device, including a sampling frame and lifting slide rails. Sampling frame mounting bases are fixedly installed on the middle of both sides of the sampling frame. Two lifting slide rails are symmetrically installed inside the sampling frame. Three sets of ratchet wheels and one lifting drive ratchet are arranged vertically on the lifting slide rails. A chain passes through the ratchet wheels and the lifting drive ratchet, and its ends are connected to the sampling component base of the lifting sampling assembly. The lifting motor of the sampling assembly controls the lifting sampling assembly to move up and down along the lifting slide rails via the lifting drive ratchet and the chain. A sampling platform is installed at the bottom inside the sampling frame. This utility model uses the sampling frame and the liftable lifting sampling assembly, along with a sampling head cover and a sampling head, to sample coal slime. This allows the equipment to sample coal slime directly from above the vehicle's cargo bin, eliminating the need for manual climbing. The simple structure of the sampling head cover and sampling head allows the equipment to be cleaned directly with a water gun, ensuring no risk of coal sample mixing.

Description

Technical Field

[0001] This utility model relates to a sampling device, specifically a coal slime sampling device. Background Technology

[0002] Coal slime is the residue left over from washing coal in coal washing plants. This coal slime is usually supplied to power plants for power generation or to produce honeycomb briquettes. Therefore, it is necessary to take samples during the sale to determine the quality of the coal slime. The current method of coal slime sampling is to manually climb onto the truck to take samples. This method is inefficient and slow, and workers are prone to getting their clothes dirty if they are not careful.

[0003] Currently, a utility model patent with publication number CN221038097U discloses a vehicle sampling head capable of simultaneously sampling coal slime and semi-coke, relating to the field of sampling device technology. It aims to solve the problem of residue remaining inside the sampling tube after material extraction. The device includes a connecting structure; clamping mechanisms are movably connected to both sides of the connecting structure, and a lifting structure and an extraction mechanism are movably connected to the top of the connecting structure. A driving mechanism is also fixedly connected to the connecting structure, and is movably connected to both the lifting structure and the extraction mechanism. The extraction mechanism includes a sampling tube, a guide tube, a cleaning rod, and an elastic element. The guide tube is fixedly connected to the top of the sampling tube, and the cleaning rod is slidably connected to both the sampling tube and the guide tube. An elastic element is movably connected to the cleaning rod, with both ends of the elastic element abutting the guide tube and the cleaning rod, respectively. When the cleaning rod slides inside the sampling tube, it can also clean the inner wall of the sampling tube.

[0004] As can be seen from the above-disclosed technical content, the utility model with announcement number CN221038097U, as prior art, can control the cleaning rod to slide smoothly to the bottom through the elastic element. At the same time, when the cleaning rod slides in the sampling tube, it can also clean the inner wall of the sampling tube, avoiding material residue after sampling from remaining inside the cleaning rod. This can effectively prevent the residue from mixing during sampling and affecting the test data. However, the cleaning range of the elastic element is limited. In actual use, a large amount of coal sludge will still adhere to the latter half of the sampling tube and the corresponding connecting hose and negative pressure pump. Even if the sampling time is controlled, it is difficult to ensure that the coal sample will not enter the latter half of the sampling tube. In addition, the overlapping plates are fixedly connected to the sampling tube and are also set on the upper and lower sides of the connecting plate. That is to say, the sampling tube itself cannot be raised or lowered. Therefore, it cannot be raised or lowered during sampling and can only be moved horizontally. When entering the hopper from the side, it is difficult to cross the side plate of the hopper, which is not very convenient to use. Utility Model Content

[0005] To address the problems existing in the prior art, this utility model provides a coal slime sampling device, which can effectively improve the coal slime sampling efficiency and effectively prevent coal sample contamination caused by mixing of multiple coal samples.

[0006] To achieve the above objectives, this utility model provides a coal slime sampling device, comprising a sampling frame, a lifting sampling component, and lifting slide rails. Sampling frame mounting bases are fixedly installed in the middle of both sides of the sampling frame. Two lifting slide rails are symmetrically installed inside the sampling frame. Three sets of ratchet wheels and one lifting drive ratchet wheel are arranged vertically on the lifting slide rails. After passing through the ratchet wheels and the lifting drive ratchet wheel, the chain is connected end to end to the sampling component base of the lifting sampling component. The lifting motor of the sampling component controls the lifting sampling component to move up and down along the lifting slide rails through the lifting drive ratchet wheel and the chain. A sampling platform is installed at the bottom inside the sampling frame.

[0007] The lifting guide wheels on both sides of the sampling component base move up and down in the grooves of the lifting slide rail. The bearing sleeve is fixedly installed at the lower part of the sampling component base. The drive shaft is set in the bearing sleeve. The top of the bearing sleeve is fixedly installed with the sampling head drive motor through the bracket. The sampling head drive motor drives the drive shaft through the transmission gearbox. The sampling head is welded to the lower end of the drive shaft. The sampling head cover is movably fitted on the sampling head. The guide sleeve is fitted on the lower part of the drive shaft. The lower end of the guide sleeve is connected to the sampling head cover. The lower extension of the bearing sleeve is fitted with the lifting control frame through the bracket and slide rail. The lower end of the lifting control frame is connected to the top end of the guide sleeve. One end of the sampling head cover lifting control cylinder is hinged to the bracket at the lower part of the bearing sleeve, and the other end is hinged to the lifting control frame.

[0008] In addition, the coal slime sampling device proposed in the above embodiments of this utility model may also have the following additional technical features:

[0009] As a further improvement of this utility model, the lower end extension of the bearing sleeve is fitted with a cover via a bracket.

[0010] As a further improvement of this utility model, an electrically controlled safety device is installed on the transmission gearbox via a bracket. The electrically controlled safety device has a built-in electrically controlled telescopic rod or a pneumatic telescopic rod. The top of the transmission shaft extends upward and out of the transmission gearbox. A safety limit plate is fixedly installed on the top of the transmission shaft, and the edge of the safety limit plate is provided with multiple limit notches.

[0011] As a further improvement of this utility model, the sampling head cover is cylindrical and a guide sleeve is welded to it from a steel plate.

[0012] As a further improvement of this utility model, the lower end of the sampling head is provided with cutting teeth.

[0013] By means of the above solution, this utility model has at least the following advantages: Compared with conventional manual sampling, by using a sampling frame and a liftable lifting sampling component, and by using a sampling head cover and a sampling head to sample coal sludge, the equipment can directly sample coal sludge in the cargo hopper from above the vehicle without the need for manual climbing. The simple structure of the sampling head cover and the sampling head allows the equipment to be cleaned directly with a water gun, ensuring that there is no risk of coal sample mixing. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of a coal slime sampling device;

[0015] Figure 2 This is a front-view 3D view of the lifting sampling component of the coal slime sampling device;

[0016] Figure 3 This is a rear-view 3D view of the lifting sampling component of the coal slime sampling device;

[0017] Figure 4 This is a 3D view of the lifting and sampling components of a coal slime sampling device with the cover removed.

[0018] Figure 5 yes Figure 3 A magnified view of a portion of A;

[0019] In the diagram: 1. Sampling frame; 2. Lifting sampling component; 21. Sampling component base; 22. Lifting guide wheel; 23. Sampling head drive motor; 24. Bearing sleeve; 25. Transmission gearbox; 26. Cover; 27. Guide sleeve; 28. Sampling head cover; 29. ​​Sampling head; 210. Drive shaft; 211. Sampling head cover lifting control cylinder; 212. Lifting control frame; 213. Electrically controlled safety device; 214. Safety limit plate; 3. Ratchet; 4. Sampling frame mounting base; 5. Sampling component lifting motor; 6. Lifting drive ratchet; 7. Sampling platform; 8. Lifting slide rail. Detailed Implementation

[0020] The coal slime sampling device of this utility model is described below with reference to the accompanying drawings.

[0021] In Embodiment 1 of this application, as Figures 1 to 4As shown, this coal slime sampling device (hereinafter referred to as "the present invention") includes a sampling frame 1, a lifting sampling component 2, a sampling platform 7, and a lifting slide rail 8. Sampling frame mounting bases 4 are fixedly installed on the middle of both sides of the sampling frame 1. Two lifting slide rails 8 are symmetrically installed on the inner side of the sampling frame 1. Three sets of ratchet wheels 3 and one lifting drive ratchet wheel 6 are arranged vertically on the lifting slide rails 8. After passing through the ratchet wheels 3 and the lifting drive ratchet wheel 6, the chain is connected end-to-end to the sampling component base 21 of the lifting sampling component 2. The sampling component lifting motor 5 controls the lifting sampling component 2 to move up and down along the lifting slide rail 8 via the lifting drive ratchet wheel 6 and the chain. The sampling platform 7 is installed at the bottom inner side of the sampling frame 1. Lifting guide wheels 22 are used to guide the lifting sampling component 2 to move up and down under the constraint of the lifting slide rails 8.

[0022] The lifting guide wheels 22 on both sides of the sampling component base 21 rise and fall in the grooves of the lifting slide rail 8. The bearing sleeve 24 is fixedly installed on the lower part of the sampling component base 21. The drive shaft 210 is set in the bearing sleeve 24. The sampling head drive motor 23 is fixedly installed on the top of the bearing sleeve 24 through the bracket. The sampling head drive motor 23 drives the drive shaft 210 through the transmission gearbox 25. The sampling head 29 is welded to the lower end of the drive shaft 210. The sampling head cover 28 is movably sleeved on the sampling head 29. The guide sleeve 27 is sleeved on the lower part of the drive shaft 210. The lower end of the guide sleeve 27 is connected to the sampling head cover 28. The lower extension of the bearing sleeve 24 is equipped with a lifting control frame 212 through the bracket and the slide rail. The lower end of the lifting control frame 212 is connected to the top end of the guide sleeve 27. One end of the sampling head cover lifting control cylinder 211 is hinged to the bracket at the lower part of the bearing sleeve 24, and the other end is hinged to the lifting control frame 212. The lower extension of the bearing sleeve 24 is equipped with a cover 26 through the bracket.

[0023] A vehicle sampling head capable of simultaneously sampling coal slime and semi-coke (hereinafter referred to as "the patent"), with utility model announcement number CN221038097U, utilizes an elastic element to control the smooth sliding of a cleaning rod towards the bottom. Simultaneously, as the cleaning rod slides within the sampling tube, it cleans the inner wall of the tube, preventing material residue from remaining inside the cleaning rod after sampling. This effectively prevents the mixing of residual materials during sampling, thus avoiding interference with test data. However, the cleaning range of the elastic element is limited. In actual use, a significant amount of coal slime still adheres to the latter half of the sampling tube and the corresponding connecting hose and negative pressure pump. Even with controlled sampling time, it is difficult to ensure that coal sample does not enter the tube. The rear half of the sample tube is fixedly connected to the sampling tube by additional overlapping plates. The overlapping plates are also set on the upper and lower sides of the connecting plate. This means that the sampling tube itself cannot be raised or lowered. Therefore, it cannot be raised or lowered during sampling and can only be moved horizontally. When entering the hopper from the side, it is difficult to cross the side plate of the hopper, which is not very convenient to use. However, the present invention uses the sampling frame 1 and the liftable lifting sampling component 2, and uses the sampling head cover 28 and sampling head 29 to sample coal slime. This allows the equipment to sample the coal slime in the hopper directly from above the vehicle without the need for manual climbing. The simple structure of the sampling head cover 28 and the sampling head 29 allows the equipment to be cleaned directly with a water gun, ensuring that there is no risk of coal sample mixing.

[0024] This second embodiment is basically the same in structure as the first embodiment, the difference being that, as Figure 5 As shown, an electrically controlled safety device 213 is mounted on the transmission gearbox 25 via a bracket. The electrically controlled safety device 213 has a built-in electrically controlled telescopic rod or a pneumatic telescopic rod. The top end of the transmission shaft 210 extends upward and out of the transmission gearbox 25. A safety limit plate 214 is fixedly installed on the top end of the transmission shaft 210. The edge of the safety limit plate 214 has multiple limit notches. When the transmission shaft 210 does not need to rotate, the built-in electrically controlled telescopic rod or pneumatic telescopic rod of the electrically controlled safety device 213 extends out and engages in the pre-set notches of the safety limit plate 214 to prevent the transmission shaft 210 from rotating.

[0025] To further optimize the working efficiency of this application and facilitate production, the sampling head cover 28 is cylindrical and connected to the guide sleeve 27 by welding steel plates. For easier sampling, the lower end of the sampling head 29 is provided with cutting teeth.

[0026] During installation, the coal slime sampling device is mounted on a support or a base that allows vehicles to pass through, and then connected to the corresponding pipeline equipment before it can be put into use.

[0027] When this utility model is used, its specific operation is as follows:

[0028] In use, the vehicle passes directly under the lifting sampling component 2. After the hopper loaded with coal slurry stops directly under the lifting sampling component 2, the lifting motor 5 of the sampling component drives the lifting drive ratchet 6. The lifting drive ratchet 6 drives the lifting sampling component 2 to move down along the lifting slide rail 8 to the sampling head 29 to contact the coal slurry via the chain. The ratchet 3 is used to regulate the chain and ensure that the chain runs normally. After the sampling head 29 contacts the coal slime, the sampling head drive motor 235 drives the drive shaft 210 in the bearing sleeve 24 and guide sleeve 27 to rotate through the transmission gearbox 25. The drive shaft 210 drives the sampling head 29 to collect the coal slime into the sampling head cover 28. Then, the sampling component lifting motor 5 drives the lifting drive ratchet 6, which drives the lifting sampling component 2 to rise through the chain, raising the sampling head 29 to the sampling platform 7. Next, the sampling head cover lifting control cylinder 211 extends, causing the lifting control frame 212 to rise along the slide rail. The lifting control frame 212 drives the guide sleeve 27 and the sampling head cover 28 to rise, thus exposing the sampling head 29. At this time, the staff can use a shovel to shovel the coal slime into the sample bucket. Finally, the staff uses a high-pressure water gun to rinse the sampling head 29 and the sampling head cover 28 to prevent residual coal sample from affecting the next sampling. The sampling head cover 28 is then reset, and the equipment is ready for the next sampling.

[0029] It should be noted that the equipment can be controlled automatically via a control unit or via a control console.

[0030] In summary, the coal slurry sampling device of this utility model uses a sampling frame 1 and a liftable lifting sampling component 2 to sample coal slurry, and simultaneously uses a sampling head cover 28 and a sampling head 29. This allows the device to sample coal slurry directly from above the vehicle in the cargo hopper without the need for manual climbing. The simple structure of the sampling head cover 28 and the sampling head 29 also allows the device to be cleaned directly with a water gun, ensuring no risk of coal sample mixing.

[0031] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the invention is limited to these examples; within the framework of the invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the invention should be included within the scope of protection of the invention.

Claims

1. A coal slime sampling device comprising a sampling frame (1) and a lifting sampling assembly (2), characterized in that, The sampling frame (1) is fixedly installed with sampling frame mounting bases (4) on both sides and the sampling frame (1). Two lifting slide rails (8) are symmetrically installed on the inner side of the sampling frame (1). Three sets of ratchet wheels (3) and a lifting drive ratchet wheel (6) are arranged on the upper and lower sides of the lifting slide rails (8). After passing through the ratchet wheel (3) and the lifting drive ratchet wheel (6), the chain is connected to the sampling component base (21) of the lifting sampling component (2) at both ends. The sampling component lifting motor (5) controls the lifting sampling component (2) to move up and down along the lifting slide rail (8) through the lifting drive ratchet wheel (6) and the chain. The sampling platform (7) is installed at the bottom of the inner side of the sampling frame (1). The lifting guide wheels (22) on both sides of the sampling component base (21) rise and fall in the grooves of the lifting slide rail (8). The bearing sleeve (24) is fixedly installed on the lower part of the sampling component base (21). The drive shaft (210) is set in the bearing sleeve (24). The top of the bearing sleeve (24) is fixedly installed with the sampling head drive motor (23) by the bracket. The sampling head drive motor (23) drives the drive shaft (210) through the transmission gearbox (25). The sampling head (29) is welded to the lower end of the drive shaft (210). 29) The sampling head cover (28) is movably fitted on the upper part, and the guide sleeve (27) is fitted on the lower part of the drive shaft (210). The lower end of the guide sleeve (27) is connected to the sampling head cover (28). The lower end extension of the bearing sleeve (24) is fitted with the lifting control frame (212) through the bracket and slide rail. The lower end of the lifting control frame (212) is connected to the top end of the guide sleeve (27). One end of the sampling head cover lifting control cylinder (211) is hinged to the bracket at the lower part of the bearing sleeve (24), and the other end is hinged to the lifting control frame (212).

2. The coal slime sampling device of claim 1, wherein, The lower extension of the bearing sleeve (24) is mounted on the cover (26) via a bracket.

3. The coal slime sampling device of claim 2, wherein, An electric safety device (213) is mounted on the transmission gearbox (25) via a bracket. The electric safety device (213) has an internal electric telescopic rod or a pneumatic telescopic rod. The top of the transmission shaft (210) extends upward and out of the transmission gearbox (25). A safety limit plate (214) is fixedly installed on the top of the transmission shaft (210). The edge of the safety limit plate (214) is provided with multiple limit notches.

4. The coal slime sampling device of claim 1, wherein, The sampling head cover (28) is cylindrical and is connected to the guide sleeve (27) by welding steel plates.

5. The coal slime sampling device of claim 4, wherein, The sampling head (29) has cutting teeth at its lower end.

Images