Filtering bag cage framework with denitration function and preparation method thereof

Abstract

The invention provides a filtering bag cage framework with a denitration function and a preparation method thereof. The filtering bag cage framework is composed of a framework base body and a catalytic function coating; the filtering bag cage framework not only can be used for supporting a dust removal filtering bag and preventing the dust removal filtering bag from collapsing, but also is good for dust removal and improvement of dust removal efficiency; the dust removal filtering bag can have the denitration function and any equipment does not need to be modified; dust and NOx can be removedat the same time in a dust remover; the denitration rate is greater than 85 percent within a temperature range of 140 to 200 DEG C. Moreover, after the filtering bag cage framework is placed in the dust removal filtering bag, poisoning and abrasion effects, caused by smoke dust, on the catalytic function coating of the filtering bag cage framework can be alleviated and the service life of the filtering bag cage framework is prolonged. The filtering bag cage framework with the denitration function has important meaning on popularization and application of a gas cooperative dust removal and denitration technology in the industries of cement, steel and the like.

Description

technical field [0001] The invention relates to the technical field of environmental protection catalytic materials and material processing, in particular to a filter bag cage with denitrification function and a preparation method thereof. Background technique [0002] More than 600 million people in my country will be seriously affected by smog every year, dust, nitrogen oxides (NO x ) is the main culprit of smog. my country NO x The emissions of dust and dust are as high as 24 million tons / year and 15 million tons / year respectively. It is the world's largest emitter, and the annual loss is more than 300 billion yuan. Dust and NO x The control of air pollution has become an urgent need for my country's air pollution control. At present, most of the dust removal and denitrification (NO x removal) mode of independent operation. Dust removal adopts bag type, electric type, and electric-bag composite technology, among which bag type dust removal technology is the trend of ...

AI Technical Summary

Problems solved by technology

Both of the above technologies require redesign and modification of the reactor, which is prohibitively expensive to build and expensive to operate

Patents (CN103463871A) and (CN102772953A) prepared dust removal and denitrification functional filter materials by loading the denitrification active components on the filter material support, but the above patents all directly use the method of impregnation to load the catalytic active components on the filter material In fact, this method will not only affect the filtration performance of the filter material itself, but also the catalyst loaded on it is easy to pulverize and fall off, which seriously affects the dust removal and denitrification effect of the multifunctional filter material.

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