Circulating type drying device for lithium hexafluorophosphate crystals

By introducing a scraping structure into the circulating drying device of lithium hexafluorophosphate crystal, the problem of difficulty in scraping and residue in the existing device is solved, and rapid discharge and effective drying of crystals are achieved.

CN222871382UActive Publication Date: 2025-05-16DONGYING SHIDA SHENGHUA NEW ENERGY CO LTD
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Patent Information

Application Number
CN202421676696.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-16
Publication Date
2025-05-16
Estimated Expiration
2034-07-16

AI Technical Summary

Technical Problem

The existing lithium hexafluorophosphate crystal circulating drying device lacks a scraping structure, which makes it difficult to scrape off the lithium hexafluorophosphate crystals and easily remain. Long-term use may lead to crystallization consolidation and blocking the discharge pipe.

Method used

A lithium hexafluorophosphate crystal circulating drying device including a distillation crystal tank, a heating barrel, a filter box, a drying box and a circulation pipe is designed. The crystals on the inner wall of the distillation crystal tank are scraped off by a motor driving the arc scraper.

Benefits of technology

It effectively reduces the residue of lithium hexafluorophosphate crystals, prevents crystallization from consolidating and blocking the discharge pipe, and realizes rapid discharge and drying of lithium hexafluorophosphate crystals.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of lithium battery manufacturing, in particular to a lithium hexafluorophosphate crystal circulating type drying device. Comprising a base, a distillation and crystallization tank is arranged above the base, two supporting legs are fixedly installed at the bottom of the distillation and crystallization tank and fixed to the top of the base, an exhaust pipe is arranged at the top end of the distillation and crystallization tank, a feeding pipe is fixed and communicated to one side of the distillation and crystallization tank, and a discharging pipe is arranged on the other side of the distillation and crystallization tank. A heating barrel is fixedly mounted on the inner wall of the bottom of the distillation crystallizing tank, a discharging pipe communicated with the heating barrel is arranged at the bottom end of the distillation crystallizing tank, a filtering box is arranged on one side of one supporting leg, the bottom end of the discharging pipe extends into the filtering box, and a discharging pipe is arranged in the filtering box. By means of the simple scraping structure, lithium hexafluorophosphate crystals attached to the interior of the distillation crystallization tank can be effectively scraped off, discharging is facilitated, residues of the lithium hexafluorophosphate crystals can be effectively reduced, and the crystals can be prevented from being solidified to block the discharging pipe.
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