Filtering device for industrial production of high-purity yellow phosphorus

By using heating containers and strong corrosion-resistant filters in yellow phosphorus production, combined with condensate scraping and backflushing systems, the problem of easy blockage of G4 sand core funnel filtration is solved, and efficient and safe yellow phosphorus filtration is achieved.

CN223275967UActive Publication Date: 2025-08-29JINGYI SCI & TECH GUIYANG
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Patent Information

Application Number
CN202422336392.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-25
Publication Date
2025-08-29
Estimated Expiration
2034-09-25

AI Technical Summary

Technical Problem

In the existing electronic grade yellow phosphorus production process, G4 sand core funnel filtration is easy to block, has low filtration efficiency, and yellow phosphorus is flammable and highly toxic, and has high safety risks in manual operation.

Method used

A filter device including a heating container and a hollow filter is designed. The filter is equipped with a filter plate and a strong corrosion-resistant filter, equipped with a condensate scraping mechanism and a backwashing system, and maintains the dissolved state of yellow phosphorus by heating, and discharges air by scraping condensate and backwashing water to increase the filter area and pressure difference to improve filtration efficiency.

Benefits of technology

It effectively avoids clogging of filter holes, improves filtration efficiency, ensures operation safety, enhances the structural strength of the filter device, and monitors the filtration situation in real time through the observation window.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a filtering device for industrial production of high-purity yellow phosphorus, which comprises a heating container, a hollow filter with strong corrosion resistance is arranged in the heating container, a filtering plate is horizontally arranged in the filter, and the filtering plate comprises a filtering sheet with the filtering aperture of 2-15 microns. At least the lower part of the filter is provided with a filter sheet upper surface condensate scraping mechanism with strong corrosion resistance, the upper part of the filter is provided with a water adding port and a feeding port, the bottom of the filter penetrates through the heating container and is hermetically connected with the heating container, the bottom of the shell outside the heating container is provided with a discharging port, and a valve is arranged at the discharging port; a backwashing water conveying pipe is connected to the lower shell of the filter plate, and the backwashing water conveying pipe penetrates through the heating container and is connected with the heating container in a sealing manner; the coagulum scraping mechanism on the upper surface of the filter sheet of the device scrapes coagulum on the filter sheet so as to increase the filtering area and slow down the blocking speed, and the filtering efficiency is improved.
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