Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Waste incineration sodium-based fly ash washing method
The invention discloses a waste incineration sodium-based fly ash washing method which is used for washing fly ash generated by purifying waste incineration flue gas through sodium-based deacidification, the number of washing residues can be reduced to the maximum extent through sodium-based deacidification fly ash washing, and the ash-water ratio of 1: 3 can reach the co-processing standard of fly ash washing with a cement kiln. A waste incineration sodium-based fly ash washing method comprises the following processes that fly ash is subjected to first-stage washing, a heavy solid phase, a light solid phase and a liquid phase are separated through first-stage washing, and mother liquor in second-stage washing is used as water in the first-stage washing; carrying out second-stage washing solid-liquid separation on a heavy solid phase in the first-stage washing wet slag, and carrying out second-stage washing separation on a solid phase and a liquid phase; mother liquor in the third-stage washing is used as water in the second-stage washing; the second-stage washing wet slag is subjected to third-stage washing solid-liquid separation, and the third-stage washing solid-liquid separation is carried out; fresh water is used in the third-stage water washing process; the inlet temperature of the fresh water is 37-46 DEG C, the ratio of the ash to the fresh water is greater than 1: 3, and the retention time of the washing process is greater than 30 minutes.
本发明公开了一种垃圾焚烧钠基飞灰水洗方法，对利用钠基脱酸净化垃圾焚烧烟气产生的飞灰进行水洗，通过钠基脱酸飞灰水洗可最大限度的降低水洗残渣的数量，并实现灰水比1:3能够达到飞灰水洗水泥窑协同处置标准。一种垃圾焚烧钠基飞灰水洗方法，包括以下过程：飞灰进行一级水洗，一级水洗分离重固相、轻固相、液体三相，一级水洗中水使用的是二级水洗中的母液；一级水洗湿渣中的重固相进行二级水洗固液分离，二级水洗分离固液两相；二级水洗中水使用的是三级水洗中的母液；二级水洗湿渣进入三级水洗固液分离，三级水洗分离固液两相；三级水洗流程中水使用的是新鲜水；新鲜水进水温度为37~46℃，粉灰与新鲜水的比例＞1:3、水洗流程停留时间大于30min。
Waste incineration sodium-based fly ash washing method
The invention discloses a waste incineration sodium-based fly ash washing method which is used for washing fly ash generated by purifying waste incineration flue gas through sodium-based deacidification, the number of washing residues can be reduced to the maximum extent through sodium-based deacidification fly ash washing, and the ash-water ratio of 1: 3 can reach the co-processing standard of fly ash washing with a cement kiln. A waste incineration sodium-based fly ash washing method comprises the following processes that fly ash is subjected to first-stage washing, a heavy solid phase, a light solid phase and a liquid phase are separated through first-stage washing, and mother liquor in second-stage washing is used as water in the first-stage washing; carrying out second-stage washing solid-liquid separation on a heavy solid phase in the first-stage washing wet slag, and carrying out second-stage washing separation on a solid phase and a liquid phase; mother liquor in the third-stage washing is used as water in the second-stage washing; the second-stage washing wet slag is subjected to third-stage washing solid-liquid separation, and the third-stage washing solid-liquid separation is carried out; fresh water is used in the third-stage water washing process; the inlet temperature of the fresh water is 37-46 DEG C, the ratio of the ash to the fresh water is greater than 1: 3, and the retention time of the washing process is greater than 30 minutes.
本发明公开了一种垃圾焚烧钠基飞灰水洗方法，对利用钠基脱酸净化垃圾焚烧烟气产生的飞灰进行水洗，通过钠基脱酸飞灰水洗可最大限度的降低水洗残渣的数量，并实现灰水比1:3能够达到飞灰水洗水泥窑协同处置标准。一种垃圾焚烧钠基飞灰水洗方法，包括以下过程：飞灰进行一级水洗，一级水洗分离重固相、轻固相、液体三相，一级水洗中水使用的是二级水洗中的母液；一级水洗湿渣中的重固相进行二级水洗固液分离，二级水洗分离固液两相；二级水洗中水使用的是三级水洗中的母液；二级水洗湿渣进入三级水洗固液分离，三级水洗分离固液两相；三级水洗流程中水使用的是新鲜水；新鲜水进水温度为37~46℃，粉灰与新鲜水的比例＞1:3、水洗流程停留时间大于30min。
Waste incineration sodium-based fly ash washing method
一种垃圾焚烧钠基飞灰水洗方法
WU BIN (Autor:in) / LI BO (Autor:in) / LIU QIONGFANG (Autor:in)
02.06.2023
Patent
Elektronische Ressource
Chinesisch
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