Tail gas treatment device for domestic waste incineration

Abstract

The invention discloses a tail gas treatment device for domestic garbage incineration, which relates to the technical field of environmental protection equipment, and specifically comprises a neutralization chamber, a driving chamber fixedly installed at the bottom of the neutralization chamber, a clean room fixedly connected to the top of the neutralization chamber, and fixedly installed on the purification chamber. The transmission wheel, the purification device and the cleaning device inside the chamber. An axial flow fan is fixedly installed outside the neutralization chamber. Inside the neutralization chamber, a fixing ring is fixedly connected to the inner side wall of the neutralization chamber. The baffle is set to cooperate with the gas outlet to ensure that the exhaust gas can be discharged while effectively reducing the outlet area, so that part of the exhaust gas can flow back into the neutralization liquid again, and prevent part of the tail gas from escaping due to incomplete reaction in the neutralization liquid. It is pointed out that the acidic or alkaline substances cannot be completely neutralized, resulting in the problem that the discharge does not meet the standard.

Description

technical field [0001] The invention relates to the technical field of environmental protection equipment, in particular to a tail gas treatment device for domestic waste incineration. Background technique [0002] Domestic waste incineration refers to the process of reducing the volume of domestic waste through oxidation at high temperature through appropriate thermal decomposition, combustion and melting reactions, and becomes residue or molten solid matter. Domestic waste incineration facilities must be equipped with tail gas treatment facilities to prevent heavy metals , organic pollutants, etc. are discharged into the environmental medium again. [0003] Existing tail gas treatment devices for domestic waste incineration mostly use the neutralization method to first remove acidic or alkaline substances in the tail gas, and then filter the toxic substances in the tail gas through activated carbon, so as to purify and discharge after reaching the standard. However, the ex...

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Problems solved by technology

[0004] 1. Since the tail gas is passed into the neutralization water, affected by factors such as the amount and speed of the passage, part of the tail gas escapes without complete reaction in the neutralization liquid, so that the acidic or alkaline substances cannot be completely neutralized, resulting in insufficient discharge. Up to standard;

[0005] 2. Part of the sticky substances in the exhaust gas and the grid will foul, resulting in a decrease in the contact area between the exhaust gas and the activated carbon layer, and the activated carbon layer cannot be fully utilized, affecting the efficiency of exhaust gas purification

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