A purification system for polysilicon powder feed

By designing a rotating cleaning basket and a drying basket, and combining multi-stage cleaning and drying processes, the problems of low efficiency and high energy consumption in polycrystalline silicon powder cleaning equipment are solved, achieving efficient cleaning and low-energy polycrystalline silicon powder processing.

CN224542501UActive Publication Date: 2026-07-24SICHUAN YONGXIANG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN YONGXIANG CO LTD
Filing Date
2025-08-12
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

Existing polycrystalline silicon powder cleaning equipment suffers from low cleaning efficiency and long drying cycles. In particular, traditional equipment cannot fully rotate and stir, and the hot air drying efficiency is low, resulting in incomplete cleaning of impurities and high energy consumption.

Method used

It adopts a dual-rotation design with a rotating cleaning basket and a rotating drying basket, combining water washing, acid washing, ultrasonic rinsing and multi-stage drying processes, and integrating hot air, microwave and vacuum synergistic drying methods to achieve dynamic cleaning and efficient drying.

Benefits of technology

It significantly improves the cleanliness and production efficiency of polycrystalline silicon powder, reduces energy consumption, and enhances product cleanliness and economic benefits.

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Abstract

The utility model discloses a kind of for purification system of polysilicon powder material, including water washing unit, pickling unit, composite drying unit and vacuum processing unit arranged in sequence, rotating washing basket is configured in the water washing unit and pickling unit, rotating drying basket is configured in the composite drying unit and vacuum processing unit, and hot air system and microwave auxiliary device are integrated in composite drying unit, vacuum processing unit is sealed structure and is configured vacuum system, not only can comprehensively improve the cleanliness of polysilicon powder material, but also can effectively reduce energy consumption in production process, with significant economic benefits and environmental protection advantage.
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Citation Information

Patent Citations

  • CN108687029A

  • CN115582330A