Ceramic filter-element dust collector

Abstract

The invention is concerned with removing dust equipment for high temperature gas with solid impurity belonging to dust removing equipment technology field. This ceramic filter core dust catcher affords a kind of high effect dust catcher with anti-high-temperature and anti- causticity. The ceramic filter core dust catcher relates to shell, ceramic filter equipment, pulse anti-blow system and cleanout system. The ceramic filter equipment is the match-board with hole fixed on the inner side of shell, and the below head of ceramic filter core enters into the shell from the hole of match board and is fixed with shell through below fixation equipment. The upper head of ceramic filter core connects with match-board and is fixed with match board with upper fixation equipment. The ceramic filter equipment with different specifications fit for dust removing of some kinds of high temperature gas with wide application future.

Description

technical field [0001] The present invention relates to a dust remover with a ceramic filter element, in particular to a dust removal device for filtering high-temperature gas containing solid impurities, and belongs to the technical field of dust removal devices. Background technique [0002] At present, many domestic industries, such as metallurgy, power generation, ceramics, smelting and chemical industries, etc., emit a large amount of high-temperature gas every year. Most of these high-temperature gases are fueled by coal or heavy oil, and a large amount of dust-containing gas will be generated during the combustion process. hot gas. The characteristics of these dusty gases are: high flue gas temperature (generally greater than 400°C), high smoke concentration, fine smoke particles, many viscous substances such as tar, and easy condensation at low temperature. Therefore, it is difficult to meet the purification requirements by using the existing dust removal process. ....

AI Technical Summary

Problems solved by technology

The characteristics of these dusty gases are: high flue gas temperature (generally greater than 400°C), high smoke concentration, fine smoke particles, many viscous substances such as tar, and easy condensation at low temperature. Therefore, it is difficult to meet the purification requirements by using the existing dust removal process.

For example, commonly used bag-type dust collectors have temperature resistance problems (maximum working temperature 250°C) and corrosion resistance (acidification). If you want to use bag dust removal technology, you must cool down the high-temperature gas. Increase the amount of flue gas to be processed; the high-temperature cyclone dust removal device has a low removal efficiency for impurity particles with a diameter of less than 10 μm. Even if multi-stage dust removal is used, the removal effect cannot reach 98%. The effect is unstable, and the high-temperature gas needs to be reduced to about 150°C, which is the suitable operating temperature of the dust collector; while the wet dust removal will not only cause waste of heat energy, but also cause secondary pollution of water and high energy consumption.

The above reasons have caused tens of billions of tons of high-temperature hot gases to be discharged into the atmosphere every year in my country. These high-temperature hot gases, because they contain a large amount of dust particles and harmful gases, are directly discharged. On the one hand, they will cause serious air pollution. On the other hand, they will cause a large number of heat waste

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