Cathode roller side plate anti-crystallization device, crude foil machine and anti-crystallization method

Abstract

The invention discloses a cathode roller side plate anti-crystallization device, a crude foil machine and an anti-crystallization method. The invention belongs to the technical field of new energy automobile power battery electrolytic copper foil. The device is technically characterized by comprising a water spraying pipe and a dropwise adding pump, wherein the water spraying pipe is connected with the dropwise adding pump; and the water spraying pipe is arranged right above a rotating central shaft of a cathode roller and is right opposite to the cathode roller. By the adoption of the cathode roller side plate anti-crystallization device, the crude foil machine and the anti-crystallization method, crystallization of a cathode roller side end plate can be prevented, and meanwhile adding of pure water can be reduced to the maximum extent.

Description

technical field [0001] The invention relates to the field of electrolytic copper foil for power batteries of new energy vehicles, and more specifically relates to a cathode roller side plate anti-crystallization device, a foil machine, and an anti-crystallization method. Background technique [0002] The problem of crystallization of cathode roll end plates is a well-known technical problem among practitioners in the copper foil industry. It can cause edge tearing of the copper foil. [0003] For this technical question, [0004] Document 1: CN207608639U proposes a cathode roller side spray device, the spray pipes arranged on both sides of the end of the cathode roller, the spray pipes are horizontally arranged and located above the corresponding liquid surface of the cathode roller spin-out part; There is a spray section, which is composed of a plurality of spray holes arranged uniformly along the length direction of the spray pipe. The inner end coincides with the cente...

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Problems solved by technology

[0015] But, as described in the background technology of CN207608639U, the reason is: on the one hand, the water under the spray can enter in the side liquid tank; ), always flushing with water will cause the concentration of copper acid in the electrolyte to be diluted, and the process will cause large fluctuations;

[0016] On the other hand, the solution of the side liquid flow will still return to the electrolyte circulation system, and the change of its concentration will also cause the pressure of the copper dissolving system and the pressure of wastewater treatment

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