Anti-leakage device and method for slurry in desulfurization and denitrification process

Abstract

The invention discloses a slurry leakage prevention device and method for desulfurization and denitrification process, wherein the circulation box can be disassembled freely to facilitate subsequent maintenance, and the clean water sprayed by the clear water spray head is sprayed on the impurity removal round frame, the brush and the removal The fog fan is placed on the three, so as to ensure the residue of impurities, the demister can absorb the acid-containing impurity water droplets in the rising flue gas to a large extent, so as to avoid the acid mist water droplets from corroding the pipeline, avoiding the occurrence of slurry leakage, and the device is running When the brush extends into the gap between two adjacent defogging fans, the brush moves up and down to clean the outer wall of the defogging fan to avoid residues of impurities. Moving up and down, the sealing plate is used for sealing to prevent the slurry in the absorption tower from overflowing from the vertical groove on the side wall of the absorption tower, that is, the brush moves up and down to clean the demister. After the demister is cleaned, the leakage can be greatly reduced. The occurrence of slurry can also effectively prevent the corrosion of pipelines by water droplets containing acid mist.

Description

technical field [0001] The invention relates to desulfurization and denitrification equipment, in particular to a desulfurization and denitration process slurry anti-leakage device and method. Background technique [0002] During the operation of desulfurization and denitrification equipment, many problems are often encountered. For example, when the desulfurization and denitrification equipment is operating, the slurry leakage occurs. The occurrence of the slurry leakage mainly includes the following four aspects. First, the demister of the desulfurization and denitrification equipment in the brick factory has been used for a long time, and many components inside the equipment have aged; Cause the surface of the equipment to be scalded and leak slurry; third, when the mist eliminator is blocked, the pressure of the flue gas will gradually expand, and eventually the gap of the mist eliminator will be flushed out, resulting in leakage of the slurry; fourth , the bolts used ...

AI Technical Summary

Problems solved by technology

First, the demister of the desulfurization and denitrification equipment in the brick factory has been used for a long time, and many components inside the equipment are aging; second, part of the high-temperature flue gas has not been sprayed for cooling, and directly contacts the demister. The surface of the equipment is scalded and there is slurry leakage; third, when the demister is blocked, the pressure of the flue gas will gradually increase, and eventually the gap of the demister will be opened to cause slurry leakage; fourth , The bolts used to fix the demister are not fastened tightly and fall off, causing the demister to crack

[0003] It can be said that the slurry leakage of desulfurization and denitrification equipment is basically caused by the accumulation of too many impurities in the demister, but if the demister is maintained, the existing method is to disassemble the equipment for replacement, but this method is time-consuming and laborious. Therefore, a device that can automatically clean the demister is needed, so as to indirectly avoid the occurrence of slurry leakage

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