A kind of exhaust gas treatment system and method based on Venturi effect

Abstract

The invention discloses a waste gas treatment system based on the Venturi effect. The invention utilizes the Venturi principle to make the vacuum pump unit, the Venturi tube and the secondary treatment liquid form a circulation loop. The conical converging part is accelerated, and the cylindrical part forms a negative pressure. After the alkaline primary treatment liquid is sucked into the neutralization tank by the negative pressure, the acidic waste gas from the exhaust gas source of the external workshop wind cabinet is sucked into the neutralization tank through the negative pressure. The primary treatment liquid is preliminarily neutralized, and the preliminarily treated gas enters the venturi tube under the action of negative pressure and is fully mixed with the secondary treatment liquid flowing at a high speed in the circulation loop. Acid gas) has been fully purified after primary treatment and secondary treatment, and combined with the exhaust gas treatment system and method based on the Venturi effect, the effect is obvious, improving the efficiency of exhaust gas absorption and treatment, without burning, and reducing the operational risk factor .

Description

technical field [0001] The present invention relates to the technical field of waste gas treatment, and in particular to a waste gas treatment system and method based on the Venturi effect. Background technique [0002] There are mainly two existing waste gas treatment methods, one is the spray method and the other is the combustion method. Spray method: neutralize and absorb the acid or alkaline waste gas by spraying, the waste gas passes through the spray absorption device in a single row from bottom to top, and then is directly discharged into the atmosphere through the dehydration net for dehydration and demisting, although the purification efficiency reaches 95%. % height, but there will still be about 5% of the acid or alkaline waste gas that has not been purified, the treatment time is long, the area is large, and the investment cost is high. Direct combustion method: A method of introducing organic waste gas into the combustion chamber, directly contacting the flame...

AI Technical Summary

Problems solved by technology

Spraying method: neutralize and absorb acidic or alkaline waste gas through spraying. The waste gas passes through the spraying absorption device in a single line from bottom to top, and then is directly discharged into the atmosphere through dehydration and demisting of the dehydration net. Although the purification efficiency reaches 95 % height, but there will still be about 5% of acidic or alkaline waste gas that has not been purified. The treatment time is long, the floor area is large, and the investment cost is high.

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