Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
System and method for preparing lightweight aggregate from fly ash and municipal sludge
The invention belongs to the field of environmental protection, and particularly relates to a system and a method for preparing lightweight aggregate from fly ash and municipal sludge. The system provided by the invention comprises a material mixer, a rotary sintering furnace, a green pellet drying furnace, a rotary furnace and a cooler. The fly ash and the municipal sludge are mixed, sintered, dried, calcined and cooled in the system to finally obtain the porous spherical lightweight aggregate which can be used in the field of building materials, so recycling of the fly ash and the municipalsludge is realized. Moreover, the rotary sintering furnace, the green pellet drying furnace and the rotary furnace in the system provided by the invention are all operated under a certain high-temperature condition, carbon particles contained in the fly ash and sludge can be effectively combusted, and the carbon content of the product is reduced, so that the system has no strict requirements on the ignition loss of the treated fly ash and municipal sludge, can be used for treating fly ash and municipal sludge with any ignition loss parameters, and has a wider application range.
本发明属于环保领域，尤其涉及一种利用粉煤灰和城市污泥制备轻骨料的系统和方法。本发明提供的系统包括：物料混合机、旋转式烧结炉、生球干燥炉、回转炉和冷却器。在本发明中，粉煤灰和城市污泥通过在系统中进行混合、烧结、干燥、煅烧和冷却，最终获得了可用于建材领域的多孔球状轻骨料，实现了粉煤灰和城市污泥的资源化处理。而且，本发明提供的系统中的旋转式烧结炉、生球干燥炉和回转炉均是在一定高温条件下运行的，能够有效燃烧粉煤灰和污泥中含有的碳颗粒，降低制品碳含量，因此该系统对所处理的粉煤灰和城市污泥的烧失量没有严格要求，可用于处理任何烧失量参数的粉煤灰和城市污泥，适用范围更广。
System and method for preparing lightweight aggregate from fly ash and municipal sludge
The invention belongs to the field of environmental protection, and particularly relates to a system and a method for preparing lightweight aggregate from fly ash and municipal sludge. The system provided by the invention comprises a material mixer, a rotary sintering furnace, a green pellet drying furnace, a rotary furnace and a cooler. The fly ash and the municipal sludge are mixed, sintered, dried, calcined and cooled in the system to finally obtain the porous spherical lightweight aggregate which can be used in the field of building materials, so recycling of the fly ash and the municipalsludge is realized. Moreover, the rotary sintering furnace, the green pellet drying furnace and the rotary furnace in the system provided by the invention are all operated under a certain high-temperature condition, carbon particles contained in the fly ash and sludge can be effectively combusted, and the carbon content of the product is reduced, so that the system has no strict requirements on the ignition loss of the treated fly ash and municipal sludge, can be used for treating fly ash and municipal sludge with any ignition loss parameters, and has a wider application range.
本发明属于环保领域，尤其涉及一种利用粉煤灰和城市污泥制备轻骨料的系统和方法。本发明提供的系统包括：物料混合机、旋转式烧结炉、生球干燥炉、回转炉和冷却器。在本发明中，粉煤灰和城市污泥通过在系统中进行混合、烧结、干燥、煅烧和冷却，最终获得了可用于建材领域的多孔球状轻骨料，实现了粉煤灰和城市污泥的资源化处理。而且，本发明提供的系统中的旋转式烧结炉、生球干燥炉和回转炉均是在一定高温条件下运行的，能够有效燃烧粉煤灰和污泥中含有的碳颗粒，降低制品碳含量，因此该系统对所处理的粉煤灰和城市污泥的烧失量没有严格要求，可用于处理任何烧失量参数的粉煤灰和城市污泥，适用范围更广。
System and method for preparing lightweight aggregate from fly ash and municipal sludge
一种利用粉煤灰和城市污泥制备轻骨料的系统和方法
ZHANG FENG (Autor:in) / LI LIN (Autor:in) / XU JIANHUI (Autor:in) / WU QUANWEI (Autor:in) / CHEN SHIGUO (Autor:in) / SONG MINGGUANG (Autor:in)
02.10.2020
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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