Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Method for producing sintered colored sand by taking tailings as raw material
The invention relates to a method for producing sintered colored sand by taking tailings as a raw material. The method comprises the following steps of: repeatedly washing the tailings with clear water, carrying out solid-liquid separation on the washed tailings, mixing the obtained solid with industrial boric acid, pyrophosphoric acid, inorganic pigment, low-melting-point glass powder and a surfactant according to a ratio, fully and uniformly mixing the above, putting the mixture into a rotary kiln, sintering for 1-1.2 hours at the temperature of 450-500 DEG C, crushing by using a crusher, and separating into products with different particle fractions and meshes by using a probability sieve. The method disclosed by the invention is simple in treatment process, low in equipment investment, low in cost, high in product added value, free of secondary pollution in the process, remarkable in recycling effect, easy for large-scale treatment and relatively good in environmental benefit and economic benefit.
一种以尾矿为原料生产烧结彩砂的方法，包括用清水对尾矿进行反复洗涤，对洗涤后的尾矿进行固液分离，将所得固体与工业硼酸、焦磷酸、无机颜料、低熔点玻璃粉和表面活性剂按比例进行混配，充分混匀后，置于回转窑内于450‑500ºC温度下进行烧结处1‑1.2h，然后用破碎机破碎，并采用概率筛分离成不同粒级目数的产品。本发明的处理工艺简单，设备投资小、成本低、产品附加值高、且过程无二次污染、资源化效果显著、易于大规模处置，有较好的环境效益和经济效益。
Method for producing sintered colored sand by taking tailings as raw material
The invention relates to a method for producing sintered colored sand by taking tailings as a raw material. The method comprises the following steps of: repeatedly washing the tailings with clear water, carrying out solid-liquid separation on the washed tailings, mixing the obtained solid with industrial boric acid, pyrophosphoric acid, inorganic pigment, low-melting-point glass powder and a surfactant according to a ratio, fully and uniformly mixing the above, putting the mixture into a rotary kiln, sintering for 1-1.2 hours at the temperature of 450-500 DEG C, crushing by using a crusher, and separating into products with different particle fractions and meshes by using a probability sieve. The method disclosed by the invention is simple in treatment process, low in equipment investment, low in cost, high in product added value, free of secondary pollution in the process, remarkable in recycling effect, easy for large-scale treatment and relatively good in environmental benefit and economic benefit.
一种以尾矿为原料生产烧结彩砂的方法，包括用清水对尾矿进行反复洗涤，对洗涤后的尾矿进行固液分离，将所得固体与工业硼酸、焦磷酸、无机颜料、低熔点玻璃粉和表面活性剂按比例进行混配，充分混匀后，置于回转窑内于450‑500ºC温度下进行烧结处1‑1.2h，然后用破碎机破碎，并采用概率筛分离成不同粒级目数的产品。本发明的处理工艺简单，设备投资小、成本低、产品附加值高、且过程无二次污染、资源化效果显著、易于大规模处置，有较好的环境效益和经济效益。
Method for producing sintered colored sand by taking tailings as raw material
以尾矿为原料生产烧结彩砂的方法
JIAN FANGFANG (Autor:in) / LIU E (Autor:in)
28.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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