Method and device for preparing sodium carbonate by recycling tail gas of coal-fired boiler
A technology for a coal-fired boiler and a waste heat recovery device, which is applied in separation methods, chemical instruments and methods, fuels, etc., can solve the problem of not being able to fundamentally solve the problem of environmental pollution caused by a large amount of carbon dioxide emissions, and improve the utilization rate of raw materials and combustion efficiency. , the effect of reducing consumption
Inactive Publication Date: 2013-02-20
GUANGDONG DAZHONG AGRI SCI CO LTD
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Abstract
The invention relates to a method and a device for preparing sodium carbonate by recycling tail gas of a coal-fired boiler. The method comprises the steps of mixing coals and a desulfurizing agent to prepare desulfurized coals, and feeding the desulfurized coals into the boiler for burning; recycling waste heat of the tail gas; conducting dust removal on the tail gas; collecting and compressing the tail gas; and introducing the compressed tail gas into a reaction tank for chemical reaction to prepare sodium carbonate. According to the method, not only can the tail gas of the coal-fired boiler be treated, the pollution on the environment is alleviated, but also carbon dioxide in the tail gas can be used as a raw material to prepare sodium carbonate, so that the method has a good popularization and application value and a good commercial value. The device provided by the invention comprises a waste heat recovery device, a dust removal device, a compressor, the reaction tank and a sodium carbonate recovery system, wherein the waste heat recovery device is connected with an exhaust port of the coal-fired boiler, and a film filter device is arranged on a gas inlet of the boiler. The device is simple in structure, high in fuel burning efficiency, low in environmental pollution, beneficial to environmental protection and strong in practicability.
Application Domain
Dispersed particle filtrationSolid fuels +2
Technology Topic
PhysicsSodium carbonate +10
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