Unlock instant, AI-driven research and patent intelligence for your innovation.

Slurry foamability evaluation system and slurry foamability evaluation method

A technology for evaluating system and foamability, applied in the direction of analyzing materials, measuring devices, instruments, etc., can solve the problems of material ratio fluctuation, separator clogging, affecting production efficiency, etc., and achieve the effect of improving production efficiency

Pending Publication Date: 2022-01-25
ZHONGTIAN EMERGING MATERIALS CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existence of a large amount of foam makes the circulation difficult during the slurry conveying process, resulting in frequent accidents of conveying pipeline blockage, filter blockage and separator blockage, affecting production efficiency
Once foam clogging occurs, the foam can only be removed by repeated solvent cleaning, which increases the difficulty and frequency of cleaning, resulting in a lot of energy consumption and time waste
Moreover, the existence of a large amount of foam is not conducive to ensuring the uniformity of slurry mixing, and it is easy to cause fluctuations in the ratio of various materials, which is not conducive to the control of material consistency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Slurry foamability evaluation system and slurry foamability evaluation method
  • Slurry foamability evaluation system and slurry foamability evaluation method
  • Slurry foamability evaluation system and slurry foamability evaluation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] Example 1: Weigh 100 grams of precursor slurry with a solid content of 40%, and simultaneously weigh 14 grams of polyethylene glycol with a molecular weight of 6000 and dissolve it in the slurry. After completely dissolving, mix the polyethylene glycol Fill the precursor slurry into the foam evaluation equipment, plug the cork, and open the gas tank valve while keeping the pressure valve closed. After confirming that there is nitrogen output, slowly open the pressure valve until the float indicator of the gas flow meter The scale is 120L / min. Monitor the foam condition of the solution in the foam evaluation equipment, start timing from the appearance of the first foam, and turn off the pressure valve after stably feeding nitrogen gas for 20 minutes, and record the upper and lower edge scale V of the foam at the same time b (132mL), V a (116mL), substituting into formula 1, calculate the solution foaming property V under solid content of the slurry 1 It is 0.8mL / min. ...

Embodiment 2

[0063] Example 2: Weigh 100 grams of precursor slurry with a solid content of 40%, and at the same time weigh 14 grams of polyvinyl alcohol with a molecular weight of 6000 and melt it in the slurry. After it is completely dissolved, mix the precursor of polyvinyl alcohol Fill the slurry into the foam evaluation equipment, plug the cork, and open the valve of the gas tank while keeping the pressure valve closed. After confirming that there is nitrogen output, slowly open the pressure valve until the float index scale of the gas flow meter is 120L / min. Monitor the foam condition of the solution in the foam evaluation equipment, start timing from the appearance of the first foam, and turn off the pressure valve after stably feeding nitrogen gas for 20 minutes, and record the upper and lower edge scale V of the foam at the same time b (145mL), V a (112mL), substituting into formula 1, calculate the solution foaming property V under solid content of the slurry 1 It is 1.65mL / min....

Embodiment 3

[0065] Example 3: Take 100 grams of precursor slurry with a solid content of 40%, and simultaneously weigh 14 grams of polyoxyethylene ether with a molecular weight of 6000 and melt it in the slurry. After it is completely dissolved, mix the polyoxyethylene ether Fill the precursor slurry into the foam evaluation equipment, plug the cork, and open the gas tank valve while keeping the pressure valve closed. After confirming that there is nitrogen output, slowly open the pressure valve until the float indicator of the gas flow meter The scale is 120L / min. Monitor the foam condition of the solution in the foam evaluation equipment, start timing from the appearance of the first foam, and turn off the pressure valve after stably feeding nitrogen gas for 20 minutes, and record the upper and lower edge scale V of the foam at the same time b (143mL), V a (113mL), into formula 1, calculate the solution foaming property V 1 1.50mL / min.

[0066] After recording the scale of the upper ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a slurry foamability evaluation system and method. The slurry foamability evaluation system comprises a slurry foamability evaluation device and a control terminal, and the slurry foamability evaluation device comprises a gas storage tank, a gas flowmeter, anti-suck-back equipment, foam evaluation equipment and liquid storage equipment; the control terminal is connected with the gas storage tank, the gas flow meter, the foam evaluation equipment and the liquid storage equipment, the gas storage tank outputs gas under the control of the control terminal, the gas flow meter is used for recording the flow of the gas and transmitting a recorded result to the control terminal, and the anti-suck-back equipment is used for preventing suck-back of slurry in the foam evaluation equipment. The foam evaluation equipment is used for storing slurry and obtaining foamability data of the slurry when receiving gas, and the liquid storage equipment is used for inputting liquid into the foam evaluation equipment under the control of the control terminal. According to the method, the foamability and foam stability of the slurry can be evaluated in advance, and the production efficiency, cost control and quality stability of the slurry can be improved.

Description

technical field [0001] The present application relates to the field of new energy technology, in particular to a slurry foamability evaluation system and a slurry foamability evaluation method. Background technique [0002] In recent years, driven by the energy density subsidy policy of new energy vehicles, the technical level of lithium iron phosphate cathode materials has also been continuously improved. In the mass production process of lithium iron phosphate materials, the stability within batches and between batches directly determines the stability of the battery manufacturing process. Among them, the uniformity of the iron source, lithium source, etc. in the batching process is the key control of material stability craft. In order to ensure the uniformity of ingredients mixing, lithium iron phosphate material factory generally adopts wet mixing process, adding ethanol or pure water as mixing medium, adding appropriate polymer dispersant to act as a phase solvent, and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N33/00
CPCG01N33/00
Inventor 方秀利孙兵陆仁杰张祥
Owner ZHONGTIAN EMERGING MATERIALS CO LTD