Fast bed reaction method and fast reaction bed for ultrafine particles

Abstract

The invention relates to a fast bed reaction method for ultrafine particles and a fast reaction bed, comprising a cyclone separator, the bottom outlet of the cyclone separator is separated from the cyclone through a downcomer, a delivery pipe, a riser pipe and a connecting pipe The top inlet of the downcomer is connected; the material is put into the delivery pipe through the downcomer from the feed inlet of the upper part of the downcomer, and then enters the riser after being heated in the delivery pipe, together with the reaction gas introduced from the air inlet of the lower part of the uptake Rising, continuous mixing, and reaction, the gas-solid mixture goes out of the riser and is sent to the cyclone separator through the connecting pipe. After the gas-solid separation of the cyclone separator, the solid powder enters the conveying pipe again to carry out the above cycle process for many times. After the reaction The material is discharged from the discharge port at the end of the conveying pipe. The invention has simple structure, easy control, simple method, separation of heating and reaction process, good fluidization stability, effective reduction of superfine particle agglomeration and clogging, good reaction uniformity, high efficiency and continuous production.

Description

technical field [0001] The invention relates to the technical field of a fast bed reactor, in particular to a fast bed reaction method for ultrafine particles and a fast reaction bed. Background technique [0002] Ultrafine particles refer to solid particles with a size between atomic clusters and micropowders, and a particle size in the range of 1-100um. According to the Geldart classification, they are typical C-type particles. [0003] Compared with ordinary powders, ultrafine particles have a very high specific surface area, so they have a series of special properties, such as low melting point, high chemical activity, strong magnetism, good heat conduction, abnormal absorption of electromagnetic waves, etc., which make them widely used in many special fields. application has opened up broad prospects. [0004] In practical applications, fluidized bed reactors are often used in order to make the solid particles mix uniformly and at the same time fully contact the reacti...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the above technical problems, provide a simple method, separate heating and reaction process, good fluidization stability, effectively reduce the problem of ultrafine particle agglomeration and clogging, good reaction uniformity, high efficiency, and continuous production A fast bed reaction method for ultrafine particles

Images