Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Sludge fly ash ceramsite and preparation method thereof
The invention discloses sludge and fly ash ceramsite and a preparation method thereof. The ceramsite is prepared from the following raw materials in percentage by mass: 45%-75% of sludge, 20%-50% of fly ash, 0.5%-1.5% of starch, 2%-4% of calcium carbonate and 0.5%-1.5% of sodium humate. The preparation method of the ceramsite comprises the steps of raw material pretreatment, weighing and uniform mixing, granulation, drying, screening, preheating, high-temperature roasting and cooling to obtain the finished ceramsite. According to the invention, large-scale, harmless and resource utilization of the sludge is achieved, the defect that secondary pollution is easily caused to the environment during sludge treatment is overcome, resource utilization of various solid wastes is achieved by blending the solid waste fly ash, the utilization rate and added value of the solid wastes are increased, the sludge and the fly ash are turned into wealth, and meanwhile, the treatment cost special for solid waste is greatly reduced, environmental protection is facilitated, and good social and economic benefits are achieved.
本发明公开了一种污泥粉煤灰陶粒及其制备方法，该陶粒包括如下质量分数的原料：污泥45％～75％，粉煤灰20％～50％，淀粉0.5％～1.5％、碳酸钙2％～4％，腐殖酸钠0.5％～1.5％。该陶粒的制备方法包括原料预处理、称量混匀、造粒、干燥、筛分、预热、高温焙烧、冷却后得到成品陶粒。本发明实现了污泥大量化、无害化、资源化利用，解决了污泥处理容易对环境造成二次污染的弊端，并且通过掺配固废粉煤灰，实现了多种固废的资源化利用，提高了固废利用率和附加价值，使污泥、粉煤灰“变废为宝”，同时大大降低了专用于固废的处理费用，还有利于环境保护，具有良好的社会和经济效益。
Sludge fly ash ceramsite and preparation method thereof
The invention discloses sludge and fly ash ceramsite and a preparation method thereof. The ceramsite is prepared from the following raw materials in percentage by mass: 45%-75% of sludge, 20%-50% of fly ash, 0.5%-1.5% of starch, 2%-4% of calcium carbonate and 0.5%-1.5% of sodium humate. The preparation method of the ceramsite comprises the steps of raw material pretreatment, weighing and uniform mixing, granulation, drying, screening, preheating, high-temperature roasting and cooling to obtain the finished ceramsite. According to the invention, large-scale, harmless and resource utilization of the sludge is achieved, the defect that secondary pollution is easily caused to the environment during sludge treatment is overcome, resource utilization of various solid wastes is achieved by blending the solid waste fly ash, the utilization rate and added value of the solid wastes are increased, the sludge and the fly ash are turned into wealth, and meanwhile, the treatment cost special for solid waste is greatly reduced, environmental protection is facilitated, and good social and economic benefits are achieved.
本发明公开了一种污泥粉煤灰陶粒及其制备方法，该陶粒包括如下质量分数的原料：污泥45％～75％，粉煤灰20％～50％，淀粉0.5％～1.5％、碳酸钙2％～4％，腐殖酸钠0.5％～1.5％。该陶粒的制备方法包括原料预处理、称量混匀、造粒、干燥、筛分、预热、高温焙烧、冷却后得到成品陶粒。本发明实现了污泥大量化、无害化、资源化利用，解决了污泥处理容易对环境造成二次污染的弊端，并且通过掺配固废粉煤灰，实现了多种固废的资源化利用，提高了固废利用率和附加价值，使污泥、粉煤灰“变废为宝”，同时大大降低了专用于固废的处理费用，还有利于环境保护，具有良好的社会和经济效益。
Sludge fly ash ceramsite and preparation method thereof
一种污泥粉煤灰陶粒及其制备方法
YANG ZHIBO (Autor:in) / ZHANG BO (Autor:in) / LI YUE (Autor:in) / MIAO CHUN (Autor:in) / LI MANZHI (Autor:in)
06.04.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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