Fluidized bed reactor with wear-resistant gas distributor

Abstract

The invention relates to a fluidized bed reactor with a wear-resistant gas distributor, which mainly comprises a gas outlet, an upper seal head, a cylinder, a lower cone, and a lower seal head. A heat conducting oil distributor, a finger heat exchange tube and the gas distributor are arranged in the cylinder; the gas distributor is provided with a plurality of sieve pores; a wear-resistant bulge is respectively arranged in the plurality of sieve pores; and the center of the wear-resistant bulge is provided with a solid particle passing hole. Because the wear-resistant bulge is respectively arranged in the plurality of sieve pores of the gas distributor, when silicon powder at high temperature under high pressure enters the gas distributor, the silicon powder directly acts on the wear-resistant bulges instead of peripheries of the sieve pores of the gas distributor, and wears the wear-resistant bulges first and then the peripheries of the sieve pores, the service life of the fluidized bed reactor with the wear-resistant gas distributor and the gas distributor is prolonged, and the work efficiency of equipment and product yield are improved.

Description

technical field [0001] The invention relates to a fluidized bed reactor suitable for the field of chemical industry, in particular to a fluidized bed reactor for producing organic silicon. Background technique [0002] Fluidized bed reactors are widely used in the chemical industry, and gas distributors are usually installed in fluidized bed reactors. The gas distributors are flat, spherical and conical. One of its main functions is to allow the reactants to be evenly distributed, to speed up the reaction efficiency and shorten the reaction cycle. [0003] For example, fluidized bed reactors in the field of silicone manufacturing require the use of conical gas distributors. Such as figure 1 and figure 2 As shown, a plurality of mesh holes 12 are provided on the gas distributor 11 . After the silicon powder enters the high-temperature and high-pressure fluidized bed, it needs to pass through the multiple meshes 12 on the gas distributor 11 and enter the finger-shaped hea...

AI Technical Summary

Problems solved by technology

After a long time, the periphery of the screen hole 13 will be worn out to form concave pits, which will reduce the working efficiency of the gas distributor and uneven distribution of solid particles

[0005] Therefore, the above defects will seriously affect the start-up time and maintenance cycle of the gas distributor and fluidized bed

For example, the gas distributor will be replaced within half a year due to serious wear and tear, and the fluidized bed and the entire silicone manufacturing equipment will need to be shut down for maintenance during the replacement, which will seriously affect work efficiency and cause unnecessary resources waste

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