Reactor and method for producing particle materials

Abstract

The invention discloses a reactor and a method for producing particle materials. The reactor comprises a reactor cavity which is at least provided with a particle feeding hopper, a raw gas inlet, a particle product discharging port and a tail gas outlet, wherein the reactor cavity is internally provided with at least one conical distributor; the position of the tail gas outlet is higher than that of the conical distributor; the particle feeding hopper is arranged at the upper part of the reactor cavity; the particle product discharging port is arranged at the lower part of the reactor cavity; the reactor cavity also comprises an air curtain mechanism which can realize the blocking action between the reaction material and the inner wall of the reactor cavity; the reactor cavity is also provided with an internal or external mechanism for heating a reaction area; and the reactor cavity is also provided with an internal or external dynamic generation mechanism. The invention also discloses the method for producing the particle materials. According to the invention, the defects in the prior art are overcome, and the high-efficiency, energy-saving, long-term stable, safe and reliable production of the particle materials is realized.

Description

Technical field [0001] The present invention relates to granular material production technology, in particular to a reactor and method for producing granular material. Background technique [0002] In modern industrial production processes, the demand for particulate materials such as silicon, nickel, and titanium; silicon nitride, silicon carbide, and silicon oxide compounds are increasing in demand, and their performance requirements are becoming more and more demanding: The granular material should meet higher purity requirements; and the granularity should be uniform and moderate; the production cost of the granular material should not be too high to meet the needs of large-scale continuous production. [0003] At present, the preferred reactor for the production of granular materials is a fluidized bed reactor, which uses selected raw material gases (which can be decomposed at high temperatures, or undergo reactions such as reduction, oxidation, nitridation, and the chemical c...

AI Technical Summary

Problems solved by technology

[0010] After the raw material gas is sent into the reactor cavity, it needs to pass through the set gas distributor, so that the raw material gas can react as fully as possible in the reaction chamber to improve the utilization rate of the raw material gas and the yield of the particle product. The cavity decomposes at any time, causing the air inlet and the air inlet of the gas distributor to be blocked due to particle deposition, which needs to be cleaned regularly, which not only reduces the product yield, but also makes it difficult to meet the needs of continuous production;

[0011] The raw material gas decomposes to form simple substance deposition, which makes the particle seeds grow up, and also causes the particles to easily bond and form agglomeration in the cavity, which affects the collection of products, and can only interrupt production for necessary treatment;

[0012] The elemental substances decomposed by the raw material gas in the reactor cavity are not only deposited on the surface of the particle seeds, but also deposited on the inner wall of the cavity, which reduces the product yield. The reactor cavity deposited on the inner wall needs to be replaced frequently, which seriously affects the reaction. continuity

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