High-temperature membrane-method dedusting equipment for preventing dust bridging adhesion and operation method

Abstract

High-temperature membrane-method dedusting equipment for preventing dust bridging adhesion comprises an upper box body, a reverse blowing system, an anti-adhesion continuous blowing system, a tubesheet, a middle box body, a dedusting membrane original part, an ash bucket and a support. The anti-adhesion continuous blowing system comprises an anti-adhesion continuous blowing bag, an anti-adhesion continuous blowing main pipe, an anti-adhesion continuous blowing branch pipe, an anti-adhesion continuous blowing head and an anti-adhesion continuous blowing pulse valve. The anti-adhesion continuousblowing main pipe is located at the upper part of the tubesheet and is connected with the anti-adhesion continuous blowing bag through the anti-adhesion continuous pulse valve. The anti-adhesion continuous blowing head is located at the lower part of the tubesheet and installed in an anti-adhesion continuous blowing hole. One end of the anti-adhesion continuous blowing branch pipe is connected with the anti-adhesion continuous blowing main pipe; and the other end of the anti-adhesion continuous blowing branch pipe is connected with the anti-adhesion continuous blowing hole. According to the high-temperature membrane-method dedusting equipment for preventing dust bridging adhesion and the operation method, dust can be prevented from adhesion bridging between dedusting membrane elements inthe dedusting equipment through regular blowing of the anti-adhesion continuous blowing system, an airflow channel is prevented from being blocked, and a dedusting effect is influenced.

Description

technical field [0001] The invention belongs to the technical field of gas high-temperature dust removal, and in particular relates to a high-temperature membrane dust removal device and an operation method for preventing dust bridging and adhesion. Background technique [0002] At present, many industries, such as metallurgy, power generation, ceramics, smelting and chemical industries, etc., produce a large amount of high-temperature dust-containing gas every year. These high-temperature dust-containing gases are characterized by high temperature, generally greater than 260 ° C, containing corrosive gases and flammable and explosive. Gas, such as gas containing hydrogen, hydrogen sulfide, sulfur dioxide, hydrogen chloride and other gases, the high-temperature dust-containing system has a large amount of dust, and the dust concentration in some systems is higher than 30g / m 3 . It is difficult for ordinary dust removal methods to effectively capture dust in high-temperature...

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Problems solved by technology

[0003] When the dust content in the high-temperature gas is high or contains oily substances, the dust is easy to bridge and stick between the original dust removal membranes, and cannot fall into the ash hopper under its own gravity, and the dust bridged and sticky between the original dust removal membranes blocks the gas In the flow channel, the dust-containing gas cannot be evenly distributed after entering the high-temperature dust removal equipment, which affects the dust removal effect and increases the operating resistance of the equipment

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