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Dot coating slurry return material reprocessing system and its working method

A dot-like coating and reprocessing technology, which is applied to the device and coating of the surface coating liquid, can solve the problems of reduced recycling rate, uneven slurry coating, and difficult particle size screening, etc., and achieves improved The effect of recycling

Active Publication Date: 2022-03-11
JIANGSU ANREDA NEW MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the coating process of the dot roll coater, the slurry tends to gather at the upper scraper, resulting in agglomeration, wasting the slurry, and increasing the production cost
There are also some return material reprocessing devices in the prior art. Generally, the return material particle size is screened and reused after the slurry is uniformly recovered. This will not only lead to problems such as difficult particle size screening and low reuse, but also easy Mixing the recovered slurry with the unused slurry (proportioned slurry) will result in uneven particle size distribution, resulting in poor dot roll coating effect and uneven slurry coating, which reduces the recycling rate

Method used

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  • Dot coating slurry return material reprocessing system and its working method
  • Dot coating slurry return material reprocessing system and its working method

Examples

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Embodiment 1

[0021] Such as figure 1 As shown, the present embodiment 1 provides a dot coating slurry return reprocessing system, including: a return mechanism 1, a filter mechanism 2, and a slurry delivery mechanism 3 connected in sequence; wherein the return mechanism 1 Including: the upper scraper assembly 11 located at the upper part of the feed bin 41 of the coating machine 4, the lower scraper assembly 12 located at the lower part of the feed bin 41 of the coater 4; the excess slurry on the coating roller 42 is scraped off by each scraper assembly, After the particle size sieving by the filter mechanism 2, the prepared slurry corresponding to the particle size is added, and transported to the silo 41 of the coating machine 4 by the slurry conveying mechanism 3 for coating.

[0022] The point-like coating slurry return reprocessing system in this embodiment 1 scrapes off the excess slurry on the coating roller through the return mechanism, and adds the prepared slurry with the corresp...

Embodiment 2

[0041] On the basis of Example 1, this Example 2 provides a working method of a point-like coating slurry return reprocessing system, in which the excess slurry on the coating roller is sequentially recovered, particle size sieved, and Coating is performed after adding the prepared slurry corresponding to the particle size.

[0042] For the specific structure and implementation process of the dot-like coating slurry return material reprocessing system, please refer to the relevant discussion in Embodiment 1, and will not be repeated here.

[0043]To sum up, this point-like coating slurry return reprocessing system and its working method scrape off the excess slurry on the coating roller through the return mechanism, and add the corresponding particle size sieve by the filter mechanism. The prepared slurry of the particle size is transported to the silo of the coating machine through the slurry conveying mechanism for coating, which solves the problem of uneven distribution of ...

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PUM

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Abstract

The invention belongs to the technical field of lithium battery diaphragm preparation, and in particular relates to a dot-like coating slurry reprocessing system and a working method thereof. Wherein the dot coating slurry return reprocessing system includes: sequentially connected return mechanism, filter mechanism, and slurry conveying mechanism; wherein the return mechanism includes: an upper scraper combination located at the upper part of the coating machine 1. The lower scraper combination located at the lower part of the silo of the coating machine; the excess slurry on the coating roller is scraped off by each scraper combination, the particle size is sieved by the filter mechanism, and the prepared slurry with the corresponding particle size is added. The conveying mechanism conveys to the silo of the coating machine for coating, which solves the problem of uneven distribution of the overall particle size after mixing the recycled slurry and the proportioned slurry, and improves the recycling rate of the slurry.

Description

technical field [0001] The invention relates to the technical field of preparation of lithium battery separators, in particular to a dot-like coating slurry reprocessing system and a working method thereof. Background technique [0002] During the coating process of the dot roll coater, the slurry tends to gather at the upper scraper, resulting in agglomeration, wasting the slurry, and increasing the production cost. There are also some return material reprocessing devices in the prior art. Generally, the return material particle size is screened and reused after the slurry is uniformly recovered. This will not only lead to problems such as difficult particle size screening and low reuse, but also easy Mixing the recycled slurry with the unused slurry (proportioned slurry) will result in uneven particle size distribution, resulting in poor dot roller coating effect and uneven slurry coating, which reduces the recycling rate. Contents of the invention [0003] The object o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B05C1/08B05C11/10
CPCB05C1/0817B05C11/1039B05C11/1036
Inventor 李正林严伟王成豪景小云
Owner JIANGSU ANREDA NEW MATERIAL
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