Novel turbo air grader for silicon carbide micro powder

Abstract

The invention discloses a novel turbo air grader for silicon carbide micro powder. The novel turbo air grader comprises a supporting column, wherein the top of the supporting column is fixedly equipped with a fixed plate; the fixed plate penetrates through an unloading housing; the top of the unloading housing is fixedly equipped with a main housing; a rotary shaft is arranged inside the main housing; a rotary cage sleeves the bottom of the rotary shaft; the top of the rotary cage is fixedly equipped with a scattering disc; a volute casing is arranged outside the main body; the top of the mainhousing is fixedly equipped with a first motor; the first motor is in transmission connection to the rotary shaft through a belt; one side, away from the first motor, of the top of the main housing is equipped with a charge hole; the top of the charge hole is fixedly equipped with a loading device; and one side, close to a fine powder outlet, of the top of the main housing is fixedly equipped with a fine powder unloading tube. The novel turbo air grader for silicon carbide micro powder is simple and reasonable in structure, is convenient in use, and effectively solves the problem that most ofexisting novel turbo air graders for silicon carbide micro powder are lack of control charging devices and cannot screen fine powder, and has a very high practical value.

Description

technical field [0001] The invention relates to the technical field of silicon carbide micropowder processing, in particular to a novel vortex air classifier for silicon carbide micropowder. Background technique [0002] According to different fluid media acting on powder particles, classification can be divided into dry classification and wet classification. Wet classification uses liquid as the dispersion medium. Compared with dry classification, the difficulty of wet classification is that the classified product exists in the form of suspension, which requires the separation of liquid and solid particles again. Due to the complexity of this post-processing process, the industrial application of wet classification is restricted to a certain extent. Dry classification is usually airflow classification, which is a rapidly developing classification method at present. The development of airflow classifier has gone through three stages, namely: centrifugal classifier (first ...

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Problems solved by technology

[0003] In the production process of silicon carbide powder, it is often necessary to use a vortex air classifier to classify it, but most of the existing new vortex air classifiers for silicon carbide powder have the following deficiencies: 1. Lack of a device to control the feeding, when the feeding is more and sometimes less Unevenness affects the classification efficiency; 2. The sieved fine powder is not screened for particle size, resulting in uneven product quality; therefore, we have improved this and proposed a new type of vortex air classifier for silicon carbide powder

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