High-temperature tail gas purification treatment system

Abstract

The invention discloses a high-temperature tail gas purification treatment system which comprises a tail gas condensation subsystem, a cold water preparation subsystem and a back flush subsystem. The tail gas condensation subsystem comprises a condensation main body with an air inlet and an air outlet, a cooling pipeline and a flushing device are arranged in the condensation main body, the cold water preparation subsystem is communicated with the cooling pipeline to supply cooling water, and the back flush subsystem is communicated with the condensation main body and the flushing device to collect condensation water generated in the tail gas condensation process and deliver filtered condensation water to the flushing device; that is to say, high-temperature tail gas firstly passes through the cooling pipeline to be condensed, dust and pollutants are separated out, the condensed wastewater can be collected and recycled by the back flush subsystem to be delivered to the flushing device after being filtered to be continuously recycled and reused, the temperature, humidity and dust and dirt content of treated tail gas are all obviously reduced, the subsequent treatment burden of the tail gas is reduced, the tail gas treatment efficiency is improved, and secondary pollution caused by the tail gas is effectively controlled.

Description

technical field [0001] The invention relates to the fields of pollution control and restoration and environmental pollution prevention and control, in particular to a high-temperature tail gas purification treatment system. Background technique [0002] As a physical method of polluted site treatment and waste treatment, high-temperature thermal desorption and waste incineration technology has the characteristics of simple process, strong adaptability, short treatment cycle, and can effectively prevent "secondary hazards" caused by secondary pollution, and is widely used , has good development prospects, but at the same time, high-temperature thermal desorption or waste incineration technology requires high-temperature conditions in the process of polluted site treatment and solid waste treatment, and a large amount of heat is generated in the process, which is discharged with the tail gas. The high-temperature tail gas produced by high-temperature thermal desorption or wast...

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Problems solved by technology

The traditional method consumes a lot of clean water and produces sewage. Although the temperature can be partially lowered, the humidity of the exhaust gas cannot be effectively controlled. Dust and pollutants will still be adsorbed on the liquid particles and cannot be effectively removed. At the same time, the humidity of the exhaust gas Too high will also accelerate the saturation of the activated carbon adsorption device, causing it to fail prematurely, causing certain difficulties in the subsequent treatment of exhaust gas, and also causing a certain degree of economic loss. Therefore, it is of positive significance to provide a system that can purify high-temperature exhaust gas of

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