Sludge incineration waste gas treatment system

Abstract

The invention discloses a sludge incineration waste gas treatment system. The sludge incineration waste gas treatment system comprises a cyclone dust collector, wherein the top part of the cyclone dust collector is connected with a heat exchange boiler through a pipeline; a heat exchange water pipe is mounted in an inner cavity of the heat exchange boiler; tail gas needing to be treated is conveyed into the inner cavity of the cyclone dust collector through a tail gas inlet; a mud-water separation opening and a mud-water separation groove are formed, so that tail gas residues are convenient torecycle; a first spraying nozzle, a second spraying nozzle, a first filtering screen and a second filtering screen re arranged so that tail gas is convenient to filter again and wash; an ozone oxidation device and an ozone generator are arranged so that the tail gas is conveniently subjected to sterilization and disinfection treatment; a biological deodorization device is arranged so that the tail gas is conveniently subjected to deodorization and the tail gas is discharged into atmosphere through a chimney, so that atmospheric pollutant emission standards of China are met; the utilization functionality of the sludge incineration waste gas treatment system is greatly improved and the sludge incineration waste gas treatment system is suitable for being widely popularized.

Description

technical field [0001] The invention relates to the technical field of tail gas treatment, in particular to a sludge incineration tail gas treatment system. Background technique [0002] In the environmental protection industry, the tail gas produced by the sludge incineration process contains a large number of pollutants, mainly including smoke, acid gases (SOX, NOX, HCl), heavy metals, dioxins, etc. If these pollutants are not treated in time, they will be harmful to the human body. In the prior art, there are mainly three ways to remove the acid pollutants in the tail gas during the sludge incineration process: dry, wet and semi-dry. Among them, wet deacidification technology was developed early, widely used, and the technology is relatively mature. It mainly washes flue gas by lye spraying. The reduction is not ideal; dry purification process equipment is simple, the project cost is the least, but the purification efficiency is relatively low, generally the removal rate...

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Problems solved by technology

Among them, wet deacidification technology was developed early, widely used, and the technology is relatively mature. It mainly washes flue gas by lye spraying. The reduction is not ideal; the dry purification process has simple equipment and the least engineering cost, but the purification efficiency is relatively low. Generally, the removal rate of acid gas is only 50%, and it is difficult to meet the requirements for tail gas purification. In addition, the tail gas of the incineration process The temperature is still very high, if it is directly connected to the follow-up dust removal device, such as bag dust removal, it is easy to damage the equipment

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