Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cement kiln co-processing system for waste incineration fly ash
The invention relates to a cement kiln co-processing system for waste incineration fly ash. Washing water generated by a waste incineration fly ash three-stage washing desalination system enters a coagulating sedimentation heavy-metal removal system through a pipeline; a solution with the salt content of 1-2 percent, obtained by the coagulating sedimentation heavy-metal removal system, enters a sodium filtration and reverse osmosis pre-concentration system; and the sodium filtration and reverse osmosis pre-concentration system removes calcium and magnesium ions in washing water and concentrates the solution with the salt content of 1-2 percent into a concentrated liquor with the salt content of 6-8 percent, which is conveyed into a slight trace carnallite removal system for carnallite removal, and finally, a nearly saturated liquid enters an MVR (Mechanical Vapor Recompression) evaporative crystallization system for evaporative crystallization. The cement kiln co-processing system for waste incineration fly ash is a device for cement kiln co-processing of waste incineration fly ash, can dispose a great amount of fly ash, is high in cement output, realizes innocent treatment, and obtains industrial salt through evaporative crystallization, which is used in paper making process, snow-melting agents and the chlor-alkali industry.
Cement kiln co-processing system for waste incineration fly ash
The invention relates to a cement kiln co-processing system for waste incineration fly ash. Washing water generated by a waste incineration fly ash three-stage washing desalination system enters a coagulating sedimentation heavy-metal removal system through a pipeline; a solution with the salt content of 1-2 percent, obtained by the coagulating sedimentation heavy-metal removal system, enters a sodium filtration and reverse osmosis pre-concentration system; and the sodium filtration and reverse osmosis pre-concentration system removes calcium and magnesium ions in washing water and concentrates the solution with the salt content of 1-2 percent into a concentrated liquor with the salt content of 6-8 percent, which is conveyed into a slight trace carnallite removal system for carnallite removal, and finally, a nearly saturated liquid enters an MVR (Mechanical Vapor Recompression) evaporative crystallization system for evaporative crystallization. The cement kiln co-processing system for waste incineration fly ash is a device for cement kiln co-processing of waste incineration fly ash, can dispose a great amount of fly ash, is high in cement output, realizes innocent treatment, and obtains industrial salt through evaporative crystallization, which is used in paper making process, snow-melting agents and the chlor-alkali industry.
Cement kiln co-processing system for waste incineration fly ash
WANG ZHONGHUA (Autor:in) / LIU NINGSHENG (Autor:in)
02.12.2015
Patent
Elektronische Ressource
Englisch
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