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CN-224231362-U - Electrode slurry sampling device

CN224231362UCN 224231362 UCN224231362 UCN 224231362UCN-224231362-U

Abstract

The application relates to an electrode slurry sampling device which comprises a supporting module and a sampling module 200 arranged on the supporting module, wherein the sampling module 200 comprises a sample feeding pipeline, a quantitative pump, a three-way valve and a circulating pipeline, the inlet end of the sample feeding pipeline is communicated with a slurry storage tank, the quantitative pump is arranged on the sample feeding pipeline, the three-way valve is arranged at the liquid outlet end of the sample feeding pipeline and is provided with an inlet, a circulating port and a sample discharging port, the inlet is communicated with the liquid outlet end of the sample feeding pipeline, the circulating pipeline is connected with the inlet end of the circulating pipeline, the liquid outlet end of the circulating pipeline is communicated with the slurry storage tank, and the three-way valve is configured to be capable of being switched between a first state and a second state, wherein the first state is that the inlet is communicated with the sample discharging port, and the second state is that the inlet is communicated with the circulating port. According to the technical scheme, automatic quantitative sampling is realized, the problems of poor consistency and low efficiency of traditional manual sampling are solved, and the accuracy and the production efficiency of slurry detection in the battery production process are improved.

Inventors

  • ZHOU LIMING
  • KANG XUEFENG

Assignees

  • 宁德时代润智软件科技有限公司
  • 宁德时代新能源科技股份有限公司

Dates

Publication Date
20260512
Application Date
20260210

Claims (13)

  1. 1. The utility model provides an electrode thick liquids sampling device which characterized in that, including support module and set up in sample module on the support module, sample module includes: the inlet end of the sample injection pipeline is communicated with the slurry storage tank; The quantitative pump is arranged on the sample inlet pipe; the three-way valve is arranged at the liquid outlet end of the sample injection pipeline and is provided with an inlet, a circulating port and a sample discharge port, the inlet is communicated with the liquid outlet end of the sample injection pipeline, and The inlet end of the circulating pipeline is connected with the circulating port, and the liquid outlet end of the circulating pipeline is communicated with the slurry storage tank; the three-way valve is configured to be switchable between a first state in which the inlet communicates with the sample discharge port and a second state in which the inlet communicates with the circulation port.
  2. 2. The electrode slurry sampling apparatus of claim 1, further comprising a load-bearing platform disposed on the support module and below the sample discharge port, the load-bearing platform being configured to bear a sampling vessel.
  3. 3. The electrode slurry sampling apparatus according to claim 2, wherein the carrying platform is provided with a limiting portion, the limiting portion defines a limiting space, and the limiting space is used for accommodating the sampling container.
  4. 4. The electrode slurry sampling apparatus according to claim 2, wherein the sampling module further comprises a discharge joint connected to the discharge port, the electrode slurry sampling apparatus further comprises a cleaning module provided to the supporting module, the cleaning module comprises: A cleaning head provided with a plurality of nozzles in a direction from an outlet end of the stock joint toward an inner wall thereof, and And the high-pressure cleaning mechanism is connected with the cleaning head and is used for providing cleaning liquid for the cleaning head.
  5. 5. The electrode slurry sampling apparatus according to claim 4, wherein the cleaning head is sleeved at an outlet end of the discharge joint, and the plurality of nozzles are arranged around a central axis of the discharge joint.
  6. 6. The electrode slurry sampling apparatus of claim 4, further comprising a waste collection module disposed in the support module, the waste collection module comprising: A waste liquid collection bucket, wherein a collection port of the waste liquid collection bucket faces the drainage joint; A waste liquid collecting pipe, one end of which is connected with the waste liquid collecting hopper, the inner diameter of which is smaller than the caliber of the collecting port, and And the other end of the waste liquid collecting pipe is communicated with the waste liquid collecting container.
  7. 7. The electrode slurry sampling apparatus of claim 6, wherein the waste collection module further comprises a drive mechanism disposed on the support module and in driving connection with the waste collection tube; The waste liquid collecting bucket is arranged on the bearing platform, the bearing platform is provided with a avoiding opening, and the driving mechanism is used for driving the waste liquid collecting pipe to drive the waste liquid collecting bucket to pass through the avoiding opening, so that the waste liquid collecting bucket can be positioned on one side, close to or far away from the sample discharging joint, of the bearing platform.
  8. 8. The electrode slurry sampling apparatus according to claim 6, wherein an inner diameter of the waste liquid collecting hopper is gradually decreased from a collecting port of the waste liquid collecting hopper toward an outlet of the waste liquid collecting hopper.
  9. 9. The electrode slurry sampling apparatus according to claim 6, wherein the waste liquid collection module further comprises a weight detection means for detecting the weight of the waste liquid collection container.
  10. 10. The electrode slurry sampling apparatus of claim 1, wherein the metering pump is a gear pump.
  11. 11. The electrode slurry sampling apparatus of any one of claims 1 to 10, further comprising a control module, wherein the dosing pump and the three-way valve are electrically connected to the control module, respectively.
  12. 12. The electrode slurry sampling apparatus according to any one of claims 1 to 10, wherein a bottom of the support module is provided with a moving wheel.
  13. 13. The electrode slurry sampling apparatus according to claim 1, further comprising a pressure detecting member provided on the feed pipe and located between the three-way valve and the dosing pump.

Description

Electrode slurry sampling device Technical Field The application relates to the technical field of battery production, in particular to an electrode slurry sampling device. Background In the production process of lithium ion batteries, electrodes are generally manufactured by means of coating a slurry. The coating quality is determined by the key parameters such as uniformity, viscosity and the like of the slurry, so that the capacity, service life and safety of the battery are further affected. Therefore, the rapid, accurate and representative sampling and detection of the slurry before and during the coating process is a key link for guaranteeing the quality of the battery. At present, manual mode is generally adopted for sampling slurry. Operators need to manually operate a valve on the slurry storage tank, the slurry flowing out is received by a container such as a beaker, the valve is closed at regular time, and the manual sampling mode is high in safety risk, poor in sampling consistency and low in sampling efficiency. Disclosure of utility model Accordingly, there is a need to provide an electrode slurry sampling device for the problems of high safety risk, poor sampling consistency and low sampling efficiency in the manual electrode slurry sampling method in the related art. The application provides an electrode slurry sampling device which comprises a supporting module and a sampling module arranged on the supporting module, wherein the sampling module comprises a sample injection pipeline, a quantitative pump, a three-way valve and a circulating pipeline, wherein the inlet end of the sample injection pipeline is communicated with a slurry storage tank, the quantitative pump is arranged on a sample injection pipeline, the three-way valve is arranged at the liquid outlet end of the sample injection pipeline and is provided with an inlet, a circulating port and a sample discharging port, the inlet is communicated with the liquid outlet end of the sample injection pipeline, the inlet end of the circulating pipeline is connected with the circulating port, the liquid outlet end of the circulating pipeline is communicated with the slurry storage tank, the three-way valve is configured to be capable of being switched between a first state and a second state, the first state is that the inlet is communicated with the sample discharging port, and the second state is that the inlet is communicated with the circulating port. Above-mentioned electrode thick liquids sampling device, supporting module provide stable installation carrier for each part of sampling module, ensure that whole sampling system is stable in operation in-process structure, guarantee the stability of follow-up thick liquids transportation and sample. The inlet end of the sample feeding pipeline is communicated with the slurry storage tank, a conveying channel from the storage tank to the sampling module is established, so that the slurry can smoothly enter the sampling flow, and the quantitative pump is arranged on the sample feeding pipeline, so that the conveying flow of the slurry can be accurately controlled, the problem of unstable flow during manual sampling is avoided, and a guarantee is provided for quantitative sampling. The three-way valve is arranged at the liquid outlet end of the sample injection pipeline, the inlet of the three-way valve is communicated with the sample injection pipeline, the circulating port is connected with the circulating pipeline, and the liquid outlet end of the circulating pipeline is connected with the slurry storage tank, so that when the three-way valve is in a second state, slurry can form circulating flow among the storage tank, the sample injection pipeline, the three-way valve and the circulating pipeline, solidification and deposition of the slurry are effectively prevented when the slurry stays in the pipeline, and smoothness of the pipeline and stable performance of the slurry are ensured. When the three-way valve is switched to the first state, the inlet is communicated with the sample discharging port, the slurry can be discharged through the sample discharging port without manually opening and closing the valve, the risk that an operator directly contacts corrosive slurry is avoided, meanwhile, the accurate control of the quantitative pump is combined, automatic quantitative sampling is realized, the problems of poor consistency and low efficiency of traditional manual sampling are solved, and the precision and the production efficiency of slurry detection in the battery production process are improved. In some embodiments, the electrode slurry sampling device further includes a carrying platform disposed on the support module and located below the sample outlet, and the carrying platform is used for carrying the sampling container. In the above embodiment, the bearing platform is disposed on the supporting module, so as to provide a stable bearing foundation for the sampling container. T