High-temperature reverse blowing process and device thereof

Abstract

The invention discloses a high-temperature reverse blowing process. The high-temperature reverse blowing process comprises the following steps: a, introducing reverse blowing air which is heated to the specified temperature into a sealed chamber; b, stopping introducing the reverse blowing air into the sealed chamber by a high-temperature valve when detecting the pressure in the sealed chamber reaches the set threshold; c, controlling the reverse blowing air which reaches the set pressure to be output by other high-temperature valves and reversely blowing a target to be reversely blown; and d, controlling and stopping reverse blowing by a high-temperature valve at an air outlet of the sealed chamber after the reverse blowing process is finished, controlling the reverse blowing air heated to the specified temperature at an air inlet of the sealed chamber to enter the sealed chamber again, and circulating to finish a next reverse blowing process. The invention also discloses a reverse blowing device for the high-temperature reverse blowing process; the reverse blowing device can be used under the high-temperature condition and is excellent in dust removal effect.

Description

technical field [0001] The invention relates to a high-temperature back-blowing process and a device thereof, in particular to a high-temperature back-blowing process for high-temperature dusty gas and a device thereof. Background technique [0002] The gas from coal chemical retort furnaces, gas generators and smelting electric furnaces is high-temperature dust-containing gas. High-temperature dust-containing gas refers to furnace gas from industrial kilns such as coal conversion furnaces and ferroalloy submerged arc furnaces above 200 ° C. The dust components contained are mainly coke powder and ore powder. If the high-temperature dust-containing gas is put into use directly, the above-mentioned dust will block the gas transmission pipeline and gas combustion device, resulting in low gas utilization rate and easy to cause safety accidents. In order to solve the above problems, in the prior art, a gas filter device is mainly used to filter out dust particles in the gas. Af...

AI Technical Summary

Problems solved by technology

When using the above-mentioned pulse back-blowing soot cleaning device to remove the dust on the surface of the filter element in the gas filter device, the applicant found that the back-blowing air bag can be used normally, but the pulse valve is easily damaged during use, resulting in an unsatisfactory final cleaning effect

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