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A platform for research: civil engineering, architecture and urbanism
System and method for deacidifying flue gas generated by blending combustion of garbage in coal-fired power plant
The invention relates to a system and a method for deacidifying flue gas of mixed combustion of garbage in a coal-fired power plant. The system comprises a boiler, a flue gas treatment unit and a fly ash treatment unit, the flue gas treatment unit comprises a denitration device, an air preheater, a dust remover and a carbon dioxide trapping device which are sequentially communicated in the flue gas flowing direction; the fly ash treatment unit comprises a fly ash storage tank, a washing bubbling pool, a first flue gas heat exchange drying box, a roasting furnace, a slurry processing pool, a second flue gas heat exchange drying box, a ball milling device and a Ca (OH) 2 storage device which are sequentially arranged in a communicating manner in the flowing direction of fly ash. According to the deacidification system disclosed by the invention, Ca (OH) 2 can be prepared from the fly ash generated by combustion of the coal-doped garbage through the fly ash treatment unit, so that acid gas in combustion flue gas can be removed by utilizing Ca (OH) 2, and secondary pollution-free treatment can be realized; and meanwhile, the system disclosed by the invention can also repeatedly utilize the waste heat of the combustion flue gas, so that the application cost is greatly reduced.
本公开涉及一种燃煤电厂掺烧垃圾的烟气脱酸的系统及方法，该系统包括锅炉、烟气处理单元和飞灰处理单元；所述烟气处理单元包括沿烟气流动的方向依次连通设置的脱硝装置、空气预热器、除尘器和二氧化碳捕集装置；所述飞灰处理单元包括沿飞灰流动的方向依次连通设置的飞灰存储罐、水洗鼓泡池、第一烟气换热干燥箱、焙烧炉、浆液加工池、第二烟气换热干燥箱、球磨装置和Ca(OH)2储存装置。本公开的脱酸的系统能够利用煤掺垃圾燃烧产生的飞灰通过飞灰处理单元制备得到Ca(OH)2，进而利用Ca(OH)2实现对燃烧烟气中酸性气的脱除，可以实现无二次污染处理；同时本公开的系统也能重复利用燃烧烟气的余热，大大降低了应用的成本。
System and method for deacidifying flue gas generated by blending combustion of garbage in coal-fired power plant
The invention relates to a system and a method for deacidifying flue gas of mixed combustion of garbage in a coal-fired power plant. The system comprises a boiler, a flue gas treatment unit and a fly ash treatment unit, the flue gas treatment unit comprises a denitration device, an air preheater, a dust remover and a carbon dioxide trapping device which are sequentially communicated in the flue gas flowing direction; the fly ash treatment unit comprises a fly ash storage tank, a washing bubbling pool, a first flue gas heat exchange drying box, a roasting furnace, a slurry processing pool, a second flue gas heat exchange drying box, a ball milling device and a Ca (OH) 2 storage device which are sequentially arranged in a communicating manner in the flowing direction of fly ash. According to the deacidification system disclosed by the invention, Ca (OH) 2 can be prepared from the fly ash generated by combustion of the coal-doped garbage through the fly ash treatment unit, so that acid gas in combustion flue gas can be removed by utilizing Ca (OH) 2, and secondary pollution-free treatment can be realized; and meanwhile, the system disclosed by the invention can also repeatedly utilize the waste heat of the combustion flue gas, so that the application cost is greatly reduced.
本公开涉及一种燃煤电厂掺烧垃圾的烟气脱酸的系统及方法，该系统包括锅炉、烟气处理单元和飞灰处理单元；所述烟气处理单元包括沿烟气流动的方向依次连通设置的脱硝装置、空气预热器、除尘器和二氧化碳捕集装置；所述飞灰处理单元包括沿飞灰流动的方向依次连通设置的飞灰存储罐、水洗鼓泡池、第一烟气换热干燥箱、焙烧炉、浆液加工池、第二烟气换热干燥箱、球磨装置和Ca(OH)2储存装置。本公开的脱酸的系统能够利用煤掺垃圾燃烧产生的飞灰通过飞灰处理单元制备得到Ca(OH)2，进而利用Ca(OH)2实现对燃烧烟气中酸性气的脱除，可以实现无二次污染处理；同时本公开的系统也能重复利用燃烧烟气的余热，大大降低了应用的成本。
System and method for deacidifying flue gas generated by blending combustion of garbage in coal-fired power plant
一种燃煤电厂掺烧垃圾的烟气脱酸的系统及方法
GAO ZHIGANG (author) / CHEN FUCHUN (author) / WANG TAO (author) / WANG JIAWEI (author) / ZHANG YONGSHENG (author)
2024-11-22
Patent
Electronic Resource
Chinese
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