Solid/gas separation device with deflagration prevention and filter material burning prevention functions and working method

Abstract

The invention relates to a solid / gas separation device with deflagration prevention and filter material burning prevention functions and a working method. The solid / gas separation device comprises a primary separation structure, an ash bucket for receiving solid substances is mounted at the lower end of the primary separation structure; the upper end of the primary separation structure is providedwith a cooling fire-retardant structure for cooling gaseous substances; an inert gas fluidization blowing structure is mounted at the bottom of the ash bucket and comprises a plurality of inert gas fluidization blowing devices with upward nozzles. According to the invention, a pneumatic conveying system is ensured to be applied to conveying of high-temperature fly ash containing CO gas and H2 gasor prone to spontaneous combustion, so that deflagration accidents and filter material burning accidents are effectively avoided.

Description

technical field [0001] The invention relates to the technical field of environmental protection equipment, in particular to a solid / gas separation device with anti-explosion and anti-burning filter materials. Background technique [0002] In chemical industry, petroleum, metallurgy, electric power and other industries, high temperature dusty gas is often produced. Due to different process needs, energy recovery requirements or to meet environmental protection emission standards, these high-temperature dusty gases need to be dedusted. In order to reduce the burden on operators, prevent secondary pollution caused by the high-temperature ash collected by the dust removal device, and avoid safety accidents (high-temperature ash often contains toxic gases such as gas, and high-temperature ash is easy to come into contact with air, so it is prone to safety accidents) , More and more high-temperature dust removal ash is transported by pneumatic conveying process (including negativ...

AI Technical Summary

Problems solved by technology

However, although the pneumatic conveying system using inert gas (such as nitrogen) as the source of the conveying gas solves the problem of deflagration that may occur during the conveying process of high-temperature ash containing gas or will naturally occur, there is still solid / gas at the discharge point There is no good solution in the prior art for the risk of deflagration or scalding of the filter material in the separation device

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