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Continuous lead paste sieving method and device

A continuous, lead paste technology, applied in separation methods, chemical instruments and methods, filtration and separation, etc., can solve problems such as obstacles to efficient recycling of lead paste, and achieve high production efficiency, convenient maintenance, and high sorting efficiency. Effect

Active Publication Date: 2018-09-11
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After scrapped lead-acid batteries are collected at the regeneration point, they are mechanically disassembled to obtain main materials such as plastics, grids, lead paste, waste acid, etc. Lead paste is the most mixed lead-containing material, which contains a lot of plastic fragments and separators fibers, which are obstacles to the short-process and efficient resource recycling of lead paste

Method used

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  • Continuous lead paste sieving method and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Add water to the lead plaster to make a slurry with a mass percentage of 40%, fully stir and homogenize, separate the sieve with a diameter of 200 mm, and a screen of 200 mesh. When sieving, the feed rate of the lead paste is 100 ml / min, and the sieve swing frequency is 120 times / min. After 60 minutes, 6 liters of lead paste slurry was processed, and 0.021 kg of impurities were collected from the oversieve discharge pipe, and the removal rate of impurities was 97.2%.

Embodiment 2

[0024] Add water to the lead paste to make a slurry with a mass percentage of 60%, fully stir and homogenize, separate the sieve with a diameter of 200 mm, and a sieve of 160 mesh. When sieving, the lead paste feeding speed is 100 ml / min, and the sieve swing frequency is 120 times / min. After 60 minutes, 6 liters of lead paste slurry was processed, and 0.03 kg of impurities were collected from the oversieve discharge pipe, and the removal rate of impurities was 92.6%.

Embodiment 3

[0026] Add water to the lead plaster to make a slurry with a mass percentage of 40%, fully stir and homogenize, separate the sieve with a diameter of 200 mm, and a screen of 300 mesh. When sieving, the feed rate of the lead paste is 100 ml / min, and the sieve swing frequency is 120 times / min. After 60 minutes, 6 liters of lead plaster slurry was processed, and 0.0216 kg of the oversieve discharge pipe was collected, and the impurity removal rate was 99.9%.

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Abstract

The invention discloses a continuous lead paste sieving method and device. According to the method, firstly, lead paste is prepared into homogenized slurry; the lead paste and impurity separation is completed through wet type sieving; a separation sieve swings under external force; the sieving operation and the on-sieve impurity clearing operation are alternately performed; during the sieving, thelead paste slurry is supplied onto the separation sieve; during the impurity removal, the supply of the lead paste slurry is stopped; compressed air is introduced to a position under the sieve, so that the on-sieve impurities upwards float and overflow to leave the separation sieve. The device realizing the method comprises a water tank, a separation sieve, a lead paste slurry pipe, a compressionair pipe, an on-sieve material collection groove and a flow-out pipe; the separation sieve is fixed on a sieve swinging support frame connected with a sieving motor; a lead paste feeding pipe branchpipe and a compressed air pipe branch pipe are respectively arranged in the upper and lower cover barrel cross sections of the separation sieve; an on-sieve material collection groove is fixedly arranged on the outer wall of the separation sieve; the lower end is communicated with an under-sieve material flow-out pipe penetrating through the wall of the water box. The method and the device have the advantages that the lead paste can be continuously sieved and separated; the operation and the maintenance are simple; the production efficiency is high.

Description

technical field [0001] The invention belongs to the field of resource regeneration of waste lead-acid batteries and is used for the fine separation of lead paste in the regeneration process of waste lead-acid batteries. Background technique [0002] Lead-acid batteries will exist for a long time due to their advantages of stable performance, high safety, and low manufacturing cost. The safe disposal of scrapped lead-acid batteries and the clean recycling of resources are the inevitable requirements of economic and social development. After the scrapped lead-acid batteries are collected at the regeneration point, they are mechanically disassembled to obtain main materials such as plastics, grids, lead paste, waste acid, etc. Lead paste is the most mixed lead-containing material, which contains a lot of plastic fragments and separators Fiber, these are obstacles to the short-process and efficient recycling of lead paste. The development of high-efficiency separation technolog...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D33/01B01D33/35B01D33/50B01D33/76H01M10/54
CPCB01D33/01B01D33/35B01D33/503B01D33/76H01M10/54Y02W30/84
Inventor 张俊丰曹靖黄妍
Owner XIANGTAN UNIV