Crystallization kettle for preparing malonic acid

By introducing a cooling assembly and a detachable scraper structure into the crystallization kettle, the problem of inconvenient replacement of damaged scrapers is solved, the efficiency and stability of the equipment are improved, and the life of the equipment is extended.

CN223416770UActive Publication Date: 2025-10-10SUQIAN NANXIANG CHEM MFG CO LTD
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Patent Information

Application Number
CN202422101001.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-08-28
Publication Date
2025-10-10
Estimated Expiration
2034-08-28

AI Technical Summary

Technical Problem

The existing crystallization kettle scraper for malonic acid preparation is not easy to disassemble and replace when it is damaged after long-term use.

Method used

A crystallization kettle structure including a cooling component, a motor, a stirring shaft, a stirring rod and a detachable scraper was designed. The raw materials were cooled by the cooling component, and the sticky materials were scraped off by the scraper adhering to the inner wall of the crystallization kettle. The scraper was easy to disassemble and assemble through structures such as limit slots, limit holes and limit rods.

Benefits of technology

The scraper can be easily disassembled and replaced, which improves the maintenance efficiency of the crystallization kettle and extends the service life of the equipment.

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Abstract

The crystallization kettle comprises a crystallization kettle main body and a scraping plate, a fixing ring block is fixedly connected to the outer surface of the bottom of the crystallization kettle main body, a plurality of supporting legs are fixedly installed on the bottom surface of the fixing ring block, the bottom ends of the supporting legs are fixedly connected with a bottom plate, and a discharging opening is fixedly formed in the bottom of the crystallization kettle main body. A cooling assembly is arranged on one side of the crystallization kettle main body. The cooling assembly is arranged to introduce cooling gas into the crystallization kettle main body to cool raw materials, and the motor, the stirring shaft, the stirring rod, the scraping plate and the like are arranged, so that the scraping plate can be attached to the inner wall of the crystallization kettle main body to rotate to scrape off the raw materials adhered to the inner wall of the crystallization kettle main body; and by arranging a fixing block, a limiting clamping groove, a through hole, a scraping plate, a rubber pad, a limiting clamping block, a limiting hole, a limiting rod, a limiting circular plate, a limiting nut and the like, the scraping plate is convenient to disassemble and assemble, and the scraping plate is convenient to disassemble and replace if being damaged in the long-time use process.
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