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Paste mixing process of lead paste of lead-acid storage battery

A lead-acid battery and lead paste technology, which is applied to lead-acid batteries, battery electrodes, circuits, etc., can solve the problems of poor temperature consistency, long paste time, and low production efficiency, and improve the production of paste. Efficiency, good consistency, the effect of shortening production time

Pending Publication Date: 2022-06-07
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems in the prior art of lead-acid battery lead paste mixing time, low production efficiency, poor consistency of paste temperature, and poor performance of lead paste, the present invention provides a paste mixing process for lead-acid battery lead paste , the invention has a good cooling effect on the mixed paste, high production efficiency, and the prepared lead paste has good consistency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (A) 975 parts by weight of lead powder, 0.9 parts by weight of short fibers, and 25 parts by weight of lead tetroxide are added to the paddle type paste mixing machine, mixed for 3min, the water of 120 parts by weight is added in 1min at a constant speed, and mixed and stirred for 1min;

[0030] (B) adding 85 parts by weight of sulfuric acid whose mass fraction is 50% to the paddle-type paste mixing machine at an average speed, the adding time of sulfuric acid is 6min, stirring and feeding the cooling water of 10°C, so that the temperature of the lead paste is kept at 65°C for 2min , blow in the cold air of 15℃, keep the lead paste temperature at 55℃ for 3min, and then keep the lead paste temperature at 50℃ for 4min;

[0031] (C) Keep feeding cooling water, stop feeding cold air, and continue stirring to make the paste temperature drop to 45°C for discharging.

Embodiment 2

[0033] (A) 975 parts by weight of lead powder, 0.9 parts by weight of short fibers, and 25 parts by weight of lead tetroxide are added to the paddle type paste mixing machine, mixed for 3min, and 15 parts by weight of water are added in 0.5min at a constant speed, and mixed for 0.5 min, then add 100 parts by weight of water within 1 min, and stir for 1 min;

[0034] (B) adding 85 parts by weight of sulfuric acid whose mass fraction is 50% to the paddle-type paste mixing machine at an average speed, the adding time of sulfuric acid is 6min, stirring and feeding the cooling water of 10°C, so that the temperature of the lead paste is kept at 65°C for 2min , blow in the cold air of 15℃, keep the lead paste temperature at 55℃ for 3min, and then keep the lead paste temperature at 50℃ for 4min;

[0035] (C) Keep feeding cooling water, stop feeding cold air, and continue stirring to make the paste temperature drop to 45°C for discharging.

Embodiment 3

[0037] (A) 975 parts by weight of lead powder, 0.9 parts by weight of short fibers, and 25 parts by weight of lead tetroxide are added to the paddle-type paste mixing machine, mixed for 3min, and 120 parts by weight of water are added at a constant speed in 1min, mixed and stirred Heat the lead paste to 35°C for 1min;

[0038] (B) adding 85 parts by weight of sulfuric acid whose mass fraction is 50% to the paddle-type paste mixing machine at an average speed, the adding time of sulfuric acid is 6min, stirring and feeding the cooling water of 10°C, so that the temperature of the lead paste is kept at 65°C for 2min , blow in the cold air of 15℃, keep the lead paste temperature at 55℃ for 3min, and then keep the lead paste temperature at 50℃ for 4min;

[0039] (C) Keep feeding cooling water, stop feeding cold air, and continue stirring to make the paste temperature drop to 45°C for discharging.

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Abstract

The invention relates to the technical field of lead-acid storage battery lead paste preparation, aims to solve the problems of long paste mixing time, low production efficiency, poor paste mixing temperature consistency and poor lead paste performance in the prior art, and discloses a paste mixing process of lead-acid storage battery lead paste, which comprises the following steps: mixing lead powder and a solid additive for 3-5 minutes, adding water at a constant speed, and uniformly stirring; the preparation method comprises the following steps: mixing and stirring for 1-2 minutes to obtain lead paste, adding sulfuric acid into the lead paste at a uniform speed, stirring, introducing cooling water, keeping the temperature of the lead paste at 60-65 DEG C for 2-3 minutes, introducing cold air, keeping the temperature of the lead paste at 50-55 DEG C for 3-4 minutes, keeping the temperature of the lead paste at 45-50 DEG C for 3-4 minutes, stopping introducing the cold air, continuously stirring to reduce the temperature of the paste to 35-45 DEG C, and discharging. The paste mixing consistency is good, the produced lead paste is good in performance, the paste mixing technological process only needs 20-25 minutes per batch, and the paste mixing production efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of preparation of lead-acid battery lead paste, in particular to a paste mixing process of lead-acid battery lead paste. Background technique [0002] Lead-acid batteries are a commonly used rechargeable battery and the most widely used chemical power source in the world. Lead-acid batteries are charged and discharged through the conversion between the active material on the positive and negative plates and lead sulfate. Lead paste is the precursor of the active material of lead-acid batteries, which is a plastic paste-like mixture made of lead powder, water, sulfuric acid and additives mixed and stirred with physical and chemical changes. In the preparation process of the lead-acid battery, the lead paste is coated on the grid, and the positive and negative plates are made by curing and drying. Therefore, the content of active substances in the lead paste and the bonding effect between the lead paste and ...

Claims

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Application Information

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IPC IPC(8): H01M4/57H01M10/06H01M4/04
CPCH01M4/57H01M10/06H01M4/04Y02E60/10
Inventor 刘超朱志允舒红群
Owner CHAOWEI POWER CO LTD
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