Slurry stratified sampling device and use method thereof

Abstract

The invention relates to the technical field of slurry sampling, in particular to a slurry stratified sampling device and a using method thereof.The slurry stratified sampling device is composed of a base, a front panel, a sealing cover, a sampling bottle and a control shaft, the control shaft is arranged in the base in a full-length mode, a rotary knob is fixedly connected to the top of the control shaft, and a plurality of flow guide discs are evenly distributed on the control shaft; a through hole for the control shaft to penetrate through is formed in the center of the flow guide disc, the flow guide disc is fixedly connected with the control shaft, the rotary knob can drive the control shaft to rotate, and a through slurry channel is formed in the flow guide disc; the whole surface of the device is flat and smooth and is in a narrow and long shape, the influence on slurry disturbance is reduced, multiple sampling bottles can be installed at a time, sampling channels with different depths can be opened at the same time or in a time-sharing mode, multi-layer synchronous / time-sharing sampling is supported, multi-depth sampling is completed through single-time sinking, operation is easy, all the sampling bottles are kept independent and do not interfere with one another, and the sampling efficiency is improved. And the sampling bottle and the sample are not influenced by the outside and are pure and reliable.

Description

Technical Field

[0001] The present invention relates to the technical field of slurry sampling, in particular to a slurry layered sampling device and a use method thereof. Background Art

[0002] In the production of lithium batteries, the quality of the slurry required for coating has a significant impact on the final performance of the lithium battery. Lithium battery slurry is composed of a mixture of multiple solid and liquid phase substances, which is prone to uneven dispersion, agglomeration, sedimentation and other problems. In order to ensure the quality of the slurry and the consistency of slurries at different depths, it is necessary to test the viscosity, solid content, fineness and other aspects of the slurries at different depths. The patent with publication number CN219935398U provides a lithium-ion battery slurry stratification sampling device, which can only perform single stratification sampling. When there is a need for multi-layer sampling, multiple sampling is required, which is inconvenient to operate and time-consuming. Each sampling will cause a certain amount of slurry disturbance, and the process of waiting to eliminate the influence of the slurry disturbance will result in a waste of time. Therefore, there is an urgent need for a slurry stratification sampling device that reduces interference and is convenient and quick to sample. Summary of the Invention

[0003] The object of the present invention is to provide a slurry stratification sampling device and a method of using the same to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned object, the present invention provides the following technical solution: a slurry layered sampling device, comprising a base, a front panel, a sealing cover, a sampling bottle, and a control shaft, wherein a full-length control shaft is provided inside the base, a knob is fixedly connected to the top of the control shaft, a plurality of guide plates are evenly distributed on the control shaft, a through hole is provided in the center of the guide plate for the control shaft to pass through, and the guide plate and the control shaft are fixedly connected, and rotating the knob can drive the control shaft to rotate, and a slurry channel is provided inside the guide plate; A plurality of sampling bottle mounting holes are provided on the back of the base for mounting sampling bottles. The positions of the sampling bottle mounting holes correspond to the positions of the sampling holes. The slurry channel inside the guide plate connects the sampling bottle mounting holes and the sampling holes. The direction of the slurry channel can be adjusted by rotating the knob to control the closing and opening of the slurry channel.

[0005] Preferably, a bottom positioning hole is provided at the bottom of the base, the bottom of the control shaft is rotatably fixed in the bottom positioning hole, and the control shaft passes through the shaft hole at the top of the base, so that the knob is set at the top of the base.

[0006] Preferably, the slurry channel is curved, avoiding the control shaft, the openings at both ends of the slurry channel are on the side of the guide plate, and arc-shaped sealing gaskets are provided at both ends of the slurry channel.

[0007] Preferably, the mouth of the sampling bottle is provided with a sampling bottle sealing ring and a sampling bottle convex ring, and the sampling bottle is soft or hard.

[0008] Preferably, the sealing cover is installed on the outside of the sampling bottle, the side and bottom edges of the sealing cover are both engaged with the base, and a transparent observation window is provided on the top of the sealing cover.

[0009] Preferably, a plurality of sampling holes are provided on the front panel, a paddle hole is provided next to the sampling hole, a sealing gasket is provided in the sampling hole, a protruding cavity is provided inside the front panel, a plurality of sampling hole switch pieces are installed in the cavity, the bottom of the sampling hole switch piece is opened, and a paddle is provided on the side. The paddle is polygonal, placed in the paddle hole, and protrudes from the surface of the front panel, and can be manually moved up and down.

[0010] Preferably, an array of hemispherical protrusions is uniformly distributed on the bottom of the base.

[0011] Preferably, a pull ring is fixed above the base to facilitate operators to take the device.

[0012] The present invention also provides a method for using the slurry stratification sampling device, which comprises the following steps: S1: Determine the sampling depth requirement and complete the assembly of the slurry layered sampling device as required. Before installing the sampling bottle, be sure to rotate the knob to ensure that the slurry channel of the guide plate is closed; S2: Open the sampling holes that need to be used on the front panel, close the sampling holes that are not needed, and check whether the device installation is complete; S3: After the sampling bottle is in a negative pressure state, the device is slowly and vertically sunk into the slurry and placed steadily on the bottom of the container; S4: After the slurry stabilizes, rotate the knob to open the slurry channel of the guide plate and start sampling. Observe from the top of the sealing cover whether the sample is completely absorbed. After completion, rotate the knob to close the slurry channel of the guide plate. S5: Use the pull ring to slowly lift the device to a suitable area and place it, clean the residue on the surface of the device, open the sealing cover, remove the sampling bottle, and store the sample in a suitable area; S6: Disassemble the remaining device parts, clean, dry and check whether the parts are intact.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The slurry stratification sampling device provided by the present invention has a flat and smooth overall surface and is narrow and long, which reduces the impact on slurry disturbance. The bottom of the device is designed with a hemispherical protrusion array, which not only ensures that the device can be placed flat on the bottom of the container, but also avoids the device from being completely fitted with the bottom of the slurry container, and will not generate negative pressure to make it difficult to remove.

[0014] It supports the installation of multiple sampling bottles at one time, and can open sampling channels of different depths simultaneously or in different time periods. It supports multi-layer synchronous / time-sharing sampling, and can complete multi-depth sampling with a single sinking. There is no need to sink / take out the device multiple times, thus avoiding repeated operations that may cause multiple disturbances to the slurry.

[0015] The negative pressure of the sampling bottle is used to absorb the slurry. The guide plate maintains the negative pressure when the channel is closed and starts sampling when the channel is opened. It is controlled by rotating the knob on the top. It is simple to operate, has no electronic components, and the operator does not need to contact the slurry. In all stages of sinking the device into the slurry tank, sucking samples, and taking the device out, each sampling bottle remains independent and does not interfere with each other, ensuring that the sampling bottles and samples are not affected by the outside world and are pure and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the slurry layer sampling device; Figure 2 Schematic diagram of the internal structure of the base; Figure 3 Schematic diagram of the position of the shaft hole and the bottom positioning hole; Figure 4 It is a schematic diagram of the control axis structure; Figure 5 Schematic diagram of the guide plate structure; Figure 6 Schematic diagram of the arc-shaped sealing gasket structure; Figure 7 This is a schematic diagram of the front panel structure; Figure 8 This is a schematic diagram of the structure of the back of the front panel; Figure 9 This is a schematic diagram of the sampling hole switch structure; Figure 10 This is a schematic diagram of the sampling hole closed state; Figure 11 This is a schematic diagram of the sampling hole opening state; Figure 12 This is a schematic diagram of the structure on the back of the base; Figure 13 It is a cross-sectional view of the channel structure inside the slurry layered sampling device; Figure 14 Schematic diagram of the slurry channel closed state; Figure 15 This is a schematic diagram of the slurry channel opening state; Figure 16 Schematic diagram of the sampling bottle structure; Figure 17 This is a schematic diagram of the sampling bottle after squeezing when it is soft; Figure 18 This is a schematic diagram of the sampling bottle installation; Figure 19 Schematic diagram of the sealing cover structure; Figure 20 Schematic diagram of the bottom structure of the base; In the figure, base 1, pull ring 11, bottom positioning hole 12, shaft hole 13, sampling bottle mounting hole 14, hemispherical protrusion array 15, front panel 2, cavity 20, sampling hole 21, paddle hole 22, sampling hole switch piece 23, paddle 24, sealing cover 3, transparent observation window 31, sampling bottle 4, sampling bottle sealing ring 41, sampling bottle convex ring 42, control shaft 5, knob 51, guide plate 6, perforation 61, slurry channel 62, arc-shaped sealing gasket 63. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Please refer to Figure 1 The present invention provides a technical solution: a slurry layered sampling device, which consists of a base 1, a front panel 2, a sealing cover 3, a sampling bottle 4, and a control shaft 5.

[0019] Please refer to Figure 2-4 A pull ring 11 is fixed on the top of the base 1, which makes it convenient for the operator to take the device. A control shaft 5 is arranged throughout the length of the base 1, and a bottom positioning hole 12 is provided at the bottom of the base 1. The bottom of the control shaft 5 can be rotatably fixed in the bottom positioning hole 12, and a knob 51 is fixedly connected to the top. The control shaft 5 passes through the shaft hole 13 at the top of the base 1, so that the knob 51 is set at the top of the base 1. A plurality of guide plates 6 are evenly distributed on the control shaft 5. A through hole 61 for the control shaft 5 to pass through is opened in the center of the guide plate 6, and the guide plate 6 is fixedly connected to the control shaft 5. By manually rotating the knob 51, the control shaft 5 can be driven to rotate, thereby driving the guide plate 6 to rotate, and the rotation angle is 90°.

[0020] Please refer to Figure 5-6 A slurry channel 62 is provided inside the guide plate 6. The slurry channel 62 is curved and avoids the control shaft 5. The openings at both ends of the slurry channel 62 are on the side of the guide plate 6, and arc-shaped sealing gaskets 63 are provided at both ends of the slurry channel 62.

[0021] Please refer to Figure 7-9The front panel 2 is provided with a plurality of sampling holes 21, a paddle hole 22 is provided next to the sampling hole 21, a sealing gasket is provided in the sampling hole 21, a protruding cavity 20 is provided inside the front panel 2, a plurality of sampling hole switch pieces 23 are installed in the cavity 20, the bottom of the sampling hole switch piece 23 is opened, and a paddle 24 is provided on the side. The paddle 24 is multi-faceted, placed in the paddle hole 22, and protrudes from the surface of the front panel 2, and can be manually moved up and down, such as Figure 10 As shown, push it downward and the sampling hole 21 is closed; Figure 11 As shown, by moving upward, the sampling hole 21 is in an open state.

[0022] Please refer to Figure 12-13 The back of the base 1 is provided with a plurality of sampling bottle mounting holes 14 for mounting the sampling bottles 4. The positions of the sampling bottle mounting holes 14 correspond to the positions of the sampling holes 21. The slurry channel 62 inside the guide plate 6 connects the sampling bottle mounting holes 14 and the sampling holes 21. The direction of the slurry channel 62 can be adjusted by manually rotating the knob 51 to control the closing and opening of the slurry channel 62. Figure 14 As shown, the slurry channel 62 is in a closed state; Figure 15 As shown, the slurry channel 62 is in an open state.

[0023] Please refer to Figure 16-17 The sampling bottle 4 is provided with a sampling bottle sealing ring 41 and a sampling bottle convex ring 42 at the bottle mouth. The sampling bottle 4 is soft or hard. When it is soft, pinch the bottle body of the sampling bottle 4 to exhaust the air during installation, so that the internal negative pressure state is achieved and then it is installed in the sampling bottle installation hole 14; when it is hard, a one-way air extraction valve needs to be installed on the bottle body of the sampling bottle 4. First, install the sampling bottle 4 in the sampling bottle installation hole 14, and then extract air from the one-way valve to form a negative pressure, and use the negative pressure to absorb the slurry.

[0024] Please refer to Figure 18 , multiple sampling bottles 4 are distributed from top to bottom. According to different needs, devices with different heights and different sampling depths can be customized. The same device can also be used to perform combined sampling of multiple depths at one time. The operation is simple, there are no electronic components, and the operator does not need to contact the slurry.

[0025] During all stages of sinking the device into the slurry tank, sucking samples, and removing the device, each sampling bottle remains independent and does not interfere with each other, ensuring that the sampling bottles and samples are not affected by external factors and are pure and reliable.

[0026] Please refer to Figure 19 The sealing cover 3 is installed on the outside of the sampling bottle 4. The side and bottom of the sealing cover 3 are buckled with the base 1. A transparent observation window 31 is provided on the top of the sealing cover 3 to observe the sampling situation.

[0027] Please refer to Figure 20The bottom of the base 1 is evenly distributed with a hemispherical protrusion array 15, which not only ensures that the device can be placed flat on the bottom of the container, but also prevents the device from completely fitting with the bottom of the slurry container, and does not generate negative pressure to make it difficult to remove.

[0028] The entire device is made of corrosion-resistant materials and is sturdy and durable. After assembly, the surface of the part that penetrates into the slurry is flat, smooth, and narrow and long. When placed, it can avoid the influence of slurry disturbance on sampling as much as possible, ensuring reliable sampling.

[0029] After sampling is completed, the equipment is easy to disassemble and clean. No additional tools are required and it can be completely disassembled and cleaned. Maintenance is convenient, and when parts are damaged or missing, they can be easily replaced and repaired.

[0030] The specific operating steps are as follows: Determine the sampling depth requirements and complete the assembly of the device as required. Before installing the sampling bottle, pay attention to rotating the knob to ensure that the slurry channel of the guide plate is closed, open the sampling holes that need to be used on the front panel, close the sampling holes that do not need to be used, and check whether the installation of the device is complete; after the sampling bottle is in a negative pressure state, slowly and vertically sink the device into the slurry and place it steadily on the bottom of the container; after the slurry stabilizes, rotate the knob to open the guide plate channel to start sampling, and observe from the top of the sealing cover whether the sample is completely absorbed. After completion, rotate the knob to close the slurry channel of the guide plate; use the pull ring to slowly lift the device to a reasonable area for placement, clean the residue on the surface of the device, open the sealing cover, remove the sampling bottle, and store the sample in a reasonable area; disassemble the remaining device parts, clean, dry and check whether the parts are intact.

[0031] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations that come within the meaning and range of equivalents of the claims are intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0032] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A slurry layer sampling device, characterized in that: The invention comprises a base (1), a front panel (2), a sealing cover (3), a sampling bottle (4), and a control shaft (5). The base (1) is provided with a control shaft (5) arranged throughout the entire length. A knob (51) is fixedly connected to the top of the control shaft (5). A plurality of guide discs (6) are evenly distributed on the control shaft (5). A through hole (61) for the control shaft (5) to pass through is provided in the center of the guide disc (6). The guide disc (6) and the control shaft (5) are fixedly connected. Rotating the knob (51) can drive the control shaft (5) to rotate. A slurry channel (62) is provided inside the guide disc (6). The base (1) is provided with a plurality of sampling bottle mounting holes (14) on the back side for mounting the sampling bottles (4). The positions of the sampling bottle mounting holes (14) correspond to the positions of the sampling holes (21). The slurry channel (62) inside the guide plate (6) connects the sampling bottle mounting holes (14) and the sampling holes (21). The direction of the slurry channel (62) can be adjusted by rotating the knob (51) to control the closing and opening of the slurry channel (62).

2. The slurry layered sampling device according to claim (1), characterized in that: A bottom positioning hole (12) is provided at the bottom of the base (1), and the bottom of the control shaft (5) is rotatably fixed in the bottom positioning hole (12). The control shaft (5) passes through the shaft hole (13) at the top of the base (1), so that the knob (51) is set at the top of the base (1).

3. The slurry stratification sampling device according to claim 2, characterized in that: The slurry channel (62) is curved and avoids the control shaft (5). The openings at both ends of the slurry channel (62) are located on the side of the guide plate (6). Arc-shaped sealing gaskets (63) are provided at both ends of the slurry channel (62).

4. The slurry stratification sampling device according to claim 3, characterized in that: The mouth of the sampling bottle (4) is provided with a sampling bottle sealing ring (41) and a sampling bottle convex ring (42), and the sampling bottle (4) is soft or hard.

5. The slurry stratification sampling device according to claim 1, characterized in that: The sealing cover (3) is installed on the outside of the sampling bottle (4), the side and bottom of the sealing cover (3) are both engaged with the base (1), and the top of the sealing cover (3) is provided with a transparent observation window (31).

6. The slurry stratification sampling device according to claim 1, characterized in that: The front panel (2) is provided with a plurality of sampling holes (21), a paddle hole (22) is provided next to the sampling hole (21), a sealing gasket is provided in the sampling hole (21), a protruding cavity (20) is provided inside the front panel (2), a plurality of sampling hole switch pieces (23) are installed in the cavity (20), the bottom of the sampling hole switch piece (23) is opened, and a paddle (24) is provided on the side, the paddle (24) is multi-faceted, is placed in the paddle hole (22), and protrudes from the surface of the front panel (2), and can be manually moved up and down.

7. The slurry stratification sampling device according to claim 1, characterized in that: The bottom of the base (1) is evenly distributed with a hemispherical protrusion array (15).

8. The slurry stratification sampling device according to claim 7, characterized in that: A pull ring (11) is fixed above the base (1) to facilitate operators to take the device.

9. The slurry stratified sampling device according to any one of claims 1 to 8, wherein the method of using the device is as follows: S1: Determine the sampling depth requirement and complete the assembly of the slurry layered sampling device as required. Before installing the sampling bottle, be sure to rotate the knob to ensure that the slurry channel of the guide plate is closed; S2: Open the sampling holes that need to be used on the front panel, close the sampling holes that are not needed, and check whether the device installation is complete; S3: After the sampling bottle is in a negative pressure state, the device is slowly and vertically sunk into the slurry and placed steadily on the bottom of the container; S4: After the slurry stabilizes, rotate the knob to open the slurry channel of the guide plate and start sampling. Observe from the top of the sealing cover whether the sample is completely absorbed. After completion, rotate the knob to close the slurry channel of the guide plate. S5: Use the pull ring to slowly lift the device to a suitable area and place it, clean the residue on the surface of the device, open the sealing cover, remove the sampling bottle, and store the sample in a suitable area; S6: Disassemble the remaining device parts, clean, dry and check whether the parts are intact.

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