Silicon carbide micro-powder drying and grading integrated device

Abstract

The invention discloses a silicon carbide micro-powder drying and grading integrated device. The silicon carbide micro-powder drying and grading integrated device comprises a main machine body, wherein openings are formed in the left side and the right side of the main machine body correspondingly, a feeding hopper and a sealing cover are connected to the openings respectively, fixing bases are fixedly installed at the inner side, close to the openings, of the interior of the main machine body, and a drying cylinder is fixedly installed through the fixing bases; and a plurality of sets of fixing rings are fixedly installed in the drying cylinder, spiral blades are fixedly installed at the two sides, close to filter screens, of the inner wall of the drying cylinder, a heating base is fixedly installed at the bottom, close to the drying cylinder, of the main machine body, and the outer side face of one end of the drying cylinder is fixedly sleeved with a gear ring; and an output shaft ofa motor is fixedly sleeved with a gear, and the gear is engaged with the gear ring. The silicon carbide micro-powder drying and grading integrated device is simple and reasonable in structure, novelin design, easy to operate, high in drying efficiency and grading efficiency and convenient to widely popularize and use.

Description

technical field [0001] The invention relates to the technical field of silicon carbide production, in particular to an integrated device for drying and grading silicon carbide micropowder. Background technique [0002] Silicon carbide micropowder is widely used in wire-cutting blades for solar crystal silicon wafers, semiconductor silicon wafers and quartz chips. In the process of pulverizing silicon carbide micropowder into micropowder, the primary products generally contain carbon, iron oxide, aluminum oxide, etc. Impurities, so it needs to be further cleaned and filtered with acid and alkali washing liquid to remove impurities and purified, and then the mixed batch of materials will be settled, and the materials of different batches will be separated by different settling time. In the production process, a large amount of water and materials need to be used Mix and then centrifuge to remove water. After sedimentation, silicon carbide with different fineness batch numbers ...

AI Technical Summary

Problems solved by technology

The existing grading and drying are carried out separately. Drying is generally carried out in a drying oven. After one batch of drying is completed, it is taken out, and then the next batch of drying is carried out. Moreover, the drying oven cannot rotate, and the moisture content is low near the furnace body. The high position content will not only cause inconsistent moisture content between batches, but also the moisture content of the same batch of silicon carbide micropowder is inconsistent; classification is to classify the dried micropowder in batches, or after pickling. Wet grading, followed by drying, not only is the process more troublesome, but for the production enterprise, the equipment takes up space and the purchase cost is high

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