Continuous high temperature gas solid reactor

Abstract

Disclosed a continuous high temperature gas-solid reactor mainly comprises: a solid material inlet (1), a charging valve (2), a cap cover of reactor (3), a main body of reactor (4), inner element units (23), a main shaft (8), a lower cover of reactor (10), a gas inlet (12), a material outlet (13), and a gas outlet pipe (18). Wherein, said solid material inlet (1) and the charging valve (2) are arranged on the top of reactor; the main body of reactor (4) is in the cylinder shape; the main shaft is arranged on the central axis of said reactor; two or more inner element units formed by mixing oar (5), fixed butterfly blade (6) and rotational butterfly blade (7) are parallel vertically mounted on the main shaft; the gas inlet (12) is arranged on bottom of said reactor while the gas outlet pipe (18) is mounted on the upper part of said reactor and above the inner element units. The invention can accurately control the reaction time, continuously charge and discharge material in the condition of high temperature.

Description

technical field [0001] The present invention relates to a mixer with a rotating stirring device in a fixed vessel, more specifically a gas-solid reactor for continuous high temperature processes. Background technique [0002] In the industrial production of chemical industry, the problem of reaction between gas and solid is often encountered. Generally speaking, various types of reactors such as fluidized bed, moving bed, spouted bed, fixed bed and batch reactor are mostly used. Among them, the fluidized bed can realize high temperature and continuous production, but the particle size is required to be moderate, generally 40-80um. If the particle size is too large, the fluidization velocity is required to be too high, and the fluidization performance is not good; if the particle size is too small, a large amount of fine particles will be carried away by the fluidization wind due to the small fluidization velocity, resulting in difficulty in recycling; solid materials in the ...

AI Technical Summary

Problems solved by technology

If the particle size is too large, the fluidization velocity is required to be too high, and the fluidization performance is not good; if the particle size is too small, a large amount of fine particles will be carried away by the fluidization wind due to the small fluidization velocity, resulting in difficulty in recycling; solid materials in the reactor Dwell time cannot be precisely controlled

[0003] For moving bed and spouted bed plug flow reactors, high temperature and continuous production can be realized, the material composition changes gradually along the reactor, the fluid flows forward at the same speed in the same section, and the solid material will have uneven distribution and residence time There are disadvantages such as limited adjustment range. For solid powders with relatively fine particle sizes, this reactor also has the problem of difficult recovery of solid material tail gas.

[0004] For fixed bed reactors and reactors, there is a problem of intermittent operation and continuous production

[0005] CN1448211A discloses a continuous gas-solid reactor, which can realize continuous feeding and discharging, and has stirring blades and baffles inside, but the residence time of solid powder cannot be accurately controlled, and some The residence time of the material is too short, and there is a short circuit phenomenon

[0006] In summary, the prior art has not yet involved a gas-solid reactor that can accurately control the reaction time under high temperature conditions, continuously feeds and discharges materials, and has no difficulty in recovering solid powder.

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