An environment-friendly and energy-saving smear raw plate rich liquid rolling dipping lean liquid rolling sulfuric acid device

Abstract

The invention discloses an environment-friendly material-saving device for sulfuric acid rolling of smeared unformed plates through rolling dipping of a rich solution with a barren solution. The device comprises an upper rolling dipping roll, a lower rolling dipping roll, an upper transfer roll, a lower transfer roll, an upper rolling roll, and a lower rolling roll, wherein the upper rolling dipping roll is rolled through an upper rolling dipping acid tank below the upper rolling dipping roll in a soaked manner, and the lower rolling dipping roll is rolled through a lower rolling dipping acid tank below the lower rolling dipping roll in a soaked manner; the upper rolling dipping roll and the lower rolling dipping roll are respectively in contact with the upper transfer roll and the lower transfer roll to transfer rolling; the upper transfer roll and the lower transfer roll are respectively in contact with the upper rolling roll and the lower rolling roll to transfer rolling; a gap is formed between the upper rolling roll and the lower rolling roll; an unformed plate delivery rollway is arranged in the gap; roll surfaces of the upper rolling dipping roll, the lower rolling dipping roll, the upper transfer roll, the lower transfer roll, the upper rolling roll and the lower rolling roll are all wrapped with acid-resistant and acid-absorbent roll cloth. When the unformed plates are rolled through the device, dripping of dilute sulfuric acid and lead mud is prevented, so that the acid rolling lead mud and the acid are not wasted, and a surface acid layer is thin and uniform.

Description

technical field [0001] The invention relates to the field of lead-acid battery production, in particular to an environment-friendly and energy-saving smear raw plate rich liquid rolling dipping lean liquid rolling sulfuric acid device. Background technique [0002] Rolling of raw plates after smearing of lead-acid batteries is an indispensable and important link in the manufacturing process of green plates. Due to the different media or methods used in the rolling of raw plates, different rolling devices are used, but the rolling The purpose is basically the same: [0003] 1. The soft and uneven lead paste of the raw plate is rolled to make the surface smooth, and the grid and the lead paste are better combined; [0004] 2. After rolling, the surface of the green plate is covered with a paper film or the surface is rolled with a layer of dilute sulfuric acid solution to prevent the lead paste on the surface of the green plate from sticking or cracks on the surface of the gr...

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Problems solved by technology

[0008] 2. Dilute sulfuric acid is sprayed and rolled on the surface of the green plate, and when it passes through the gap between the upper and lower rolling rollers, it overflows to the surface of both ends of the rolled green plate, causing the acid liquid on the surface of the green plate to not all;

[0009] 3. After rich liquid spraying and rolling, there is more residual acid on the surface of the raw plate. When the surface is dry, the temperature of the kiln is higher and the energy consumption is higher;

[0010] 4. After the part with more residual acid on the surface of the raw plate is dry, the surface of the plaster with less acid will lose too much water, which will cause cracks on the surface of the plaster of the green plate, and the dry surface of the plaster will combine with the internal plaster If it is not firm, it will cause too much floating powder on the surface, which will have a serious impact on the subsequent production and the service life of the battery;

[0011] 5. The acid solution on the surface of the raw plate is uneven after rolling, and the water loss rate is quite different in the subsequent curing and drying stage. The strength of the lead paste is also different in each part, and the lead paste falls to the ground where there is more acid poor strength;

[0012] 6. The lead sulfate layer on the surface is relatively thick after being cured and dried in places where there are many uneven rolling acids. It is difficult to convert lead sulfate after charging and forming the assembled battery, and it is easy to have too many white spots or too thick on the surface of the positive plate.

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