Tail gas purifier for controlling toxic and harmful waste gas discharged at end of chemical plant chimney

Abstract

The invention relates to a tail gas purifier for controlling toxic and harmful waste gas discharged at the end of a chemical plant chimney. According to the tail gas purifier, toluene cooling and discharge pipes are arranged in a VOC cryogenic controller, and the distances between the toluene cooling and discharge pipes are gradually increased; a waste gas cleaner is arranged above the top layer toluene cooling and discharge pipe; the top portion of a smoke discharge controller is provided with a steam purifier; one side of the steam purifier is provided with a non-methane total hydrocarbon discharge reducing device, and the upper portion of the steam purifier is provided with a tail gas smoke eliminator; the tail gas smoke eliminator is communicated to a degassing dust removing device through a dust sucking and separate discharging device, the degassing dust removing device has a vertical round tank body structure, the upper portion of the degassing dust removing device is provided with a malodorous gas deodorizing discharging device communicated to the vertical round tank body structure, and the degassing dust removing device is communicated to a disinfecting and deodorizing liquid device through a circulating induced fan; and the tail gas discharged by the malodorous gas deodorizing discharging device meets environmentally-friendly super-low emission standard.

Description

technical field [0001] The invention relates to an ultra-low-emission device for deodorizing and detoxifying deodorization and detoxification of toxic and harmful odorous gases discharged from the exhaust port of a plastic granule factory in a coking plant of a plastic granule factory, in particular for controlling the emission of toxic and harmful exhaust gas at the end of a smoke exhaust chimney in a chemical plant. filter. Background technique [0002] At present, domestic and foreign control of toxic and harmful exhaust gas exhaust purifiers at the end of exhaust chimneys of chemical plants has not been reported publicly, but it has traditional photo-oxygen catalytic equipment at home and abroad, plasma organic waste gas purification equipment, washing tower spray equipment, and chemical absorbents. , nor can it absorb and control the emission concentration of clean VOC high-concentration odor, let alone control, prevent, purify, reduce, and reduce high-temperature emiss...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the gaps in the existing traditional photo-oxygen catalytic equipment, plasma organic waste gas purification equipment, washing tower spray equipment, and chemical absorbents that cannot absorb and control the emission of high-concentration VOC odors, and provide suitable for cities, counties, and cities. The absorption of villages, towns and villages can control the emission concentration of clean VOC high-concentration odor, and can also control the pollution emission of toxic and harmful gases in ultra-fine particles in ultra-fine particles in water vapor, purification, emission reduction and high-temperature emission of carbon dioxide greenhouse gas exhaust, and can also absorb Emission reduction control Control the pollution discharge of benzene, toluene, xylene, non-methane total hydrocarbons and high-concentration volatile organic compound dioxin poisonous and harmful gas concentration, and can achieve the overall control of purification, emission reduction, clean ultra-low emission environmental protection requirements of the controlled chemical plant Toxic and harmful exhaust gas tail gas purifier at the end of the smoke exhaust chimney

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