Efficient ceramic flue gas treatment device

Abstract

Disclosed is an efficient ceramic flue gas treatment device. The efficient ceramic flue gas treatment device comprises a spray tower, an absorption tower, an SNCR (selective non-catalytic reduction) denitrification system arranged on a hot-blast stove, a heat exchange system, a slurry circulating pump, an oxidation air blower, a limestone slurry system and a gypsum recovery system; flue gas containing particulates, sulfur dioxide and the like generated by a kiln and the spray tower for centralized treatment and ultra-clean smokeless emission; the flue gas from the hot-blast stove is treated bythe SNCR denitrification system and then enters the spray tower to be subjected to heat absorption with the flue gas from the kiln by the heat exchange system in the flue gas cooling section of the absorption tower, the flue gas enters the absorption tower to contact and react with limestone slurry, the heat form the heat exchange system is absorbed and exhausted to the outside world when the flue gas rises to a flue gas reheating section, and white smoke is eliminated; the slurry circulating pump continuously pumps the limestone slurry provided by the limestone slurry system to a spray unit,and the limestone slurry is recovered; the oxidation air blower provides air for the absorption tower by stirring, and reaction and precipitation of sulfide are fastened; gypsum is conveyed and recovered by the gypsum recovery system without environmental pollution.

Description

technical field [0001] The invention relates to the technical field of environmental protection equipment, in particular to a high-efficiency ceramic flue gas treatment device. Background technique [0002] In the production process of ceramic enterprises, the kiln and spray drying tower will produce particulate matter, sulfur dioxide, oxynitride, fluoride, chloride, lead, cadmium and nickel and their compounds, etc. The traditional treatment method is to remove the kiln and spray drying tower The flue gas is treated separately. The treatment of kiln flue gas mostly adopts simple single-alkali method or double-alkali method; the treatment of spray drying tower flue gas generally adopts spray settling chamber, cyclone dust collector and bag filter to collect dust Simple single-alkali method and double-alkali method are used for treatment, but there are problems such as large floor area, high operating cost, easy blockage, secondary pollution of alkali particles leading to ex...

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Problems solved by technology

[0004] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a high-efficiency ceramic flue gas treatment device, which aims to solve the occupational problems caused by the separate treatment of kiln flue gas and spray tower flue gas produced by ceramic enterprises. Large land area, secondary pollution, high management cost, and high energy consumption, to achieve centralized and efficient governance, ultra-clean and smoke-free emissions

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