High temperature exhaust gas dust removal method

Abstract

This application relates to the technical field of flue gas treatment, and specifically discloses a high-temperature waste gas dedusting method, which includes the following steps: Step (1): Pass the flue gas from the bottom of the dedusting tower, and pass through the filter layer in the dedusting tower discharge from the top of the dedusting tower; step (2): while introducing flue gas into the dedusting tower, water is continuously poured down from the top of the dedusting tower; step (3): water is collected from the bottom of the dedusting tower, and The water that rains down from the top of the tower comes from the water collected at the bottom of the dedusting tower. By setting the filter layer to absorb the flue gas, when the flue gas passes through the filter layer, because the flue gas has a large contact area with the filter layer; and when the flue gas enters from the bottom of the dust removal tower, water pours down from the top of the dust removal tower, The contact between water and flue gas also has the effect of dust removal, which can improve the dust removal effect.

Description

Technical field[0001]The present invention relates to the field of flue gas treatment, and more particularly to a high temperature exhaust gas dust removal method.Background technique[0002]The brown mat, "brown mattress" or "brown place mat", which is made of natural brown trees. The brown is preprocessed before making a brown pad, and the existing pre-treatment is usually used in a boiler high-temperature and high pressure cooking to dear insects and debris; then use a brushed machine to further extract brown fibers. Since the boiler is used to provide a heat source, a large amount of exhaust gas is generated during the smokeless coal combustion, and the exhaust gas is directly discharged into the air to cause great pollution to the air. Therefore, the brown processing plant needs to process the exhaust gas and then discharge. The current processing method is usually in the water, and then discharges to adsorb the dust in the flue gas by water, but due to the direct smoke In the th...

AI Technical Summary

Problems solved by technology

Since the boiler mostly uses anthracite combustion to provide heat source, a large amount of exhaust gas will be generated during the combustion of anthracite, and the exhaust gas directly discharged into the air will cause great pollution to the air

Therefore, the brown clothing processing plant needs to treat the exhaust gas before discharging it. The current treatment method is usually to pass the flue gas into water and then discharge it, so as to absorb the dust in the flue gas through water, but because the flue gas is directly When it is passed into the water, the flue gas will be discharged from the water with larger bubbles, so that only the dust on the surface of the bubbles is adsorbed in the water, so the dust removal effect is not good.

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