A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Tailings utilization method in solid soluble kali salt mining process
The invention relates to kali salt solid mine backfill technology, particularly to a tailing utilization method in a solid soluble kali salt mining process. The method comprises the following steps: mineral dressing solid soluble potassium ore to respectively obtain kali salt tailings and a magnesium chloride solution; mixing magnesium oxide and the kali salt tailings according to a mass ratio of 1: 10 to 1: 30, and crushing and uniformly stirring; adding the magnesium chloride solution to prepare packing slurry, and pouring and curing molding the packing slurry; curing and maintaining under a room temperature condition to obtain coagulation salt. According to the kali salt solid mine backfill technology, packing slurry which is formed by mixing the magnesium oxide, kali salt tailings and magnesium chloride solution back fills a gob, since the magnesium oxide is used as water soluble magnesium salt, after the magnesium oxide is mixed with the magnesium chloride solution to form air hardening gel, the kali salt tailings are used as a skeleton of the gel material, the gel material can be applied to an alkaline environment of the kali salt tailings and can exist stably for a long time, and the filling strength requirement of the gob can be met.
Tailings utilization method in solid soluble kali salt mining process
The invention relates to kali salt solid mine backfill technology, particularly to a tailing utilization method in a solid soluble kali salt mining process. The method comprises the following steps: mineral dressing solid soluble potassium ore to respectively obtain kali salt tailings and a magnesium chloride solution; mixing magnesium oxide and the kali salt tailings according to a mass ratio of 1: 10 to 1: 30, and crushing and uniformly stirring; adding the magnesium chloride solution to prepare packing slurry, and pouring and curing molding the packing slurry; curing and maintaining under a room temperature condition to obtain coagulation salt. According to the kali salt solid mine backfill technology, packing slurry which is formed by mixing the magnesium oxide, kali salt tailings and magnesium chloride solution back fills a gob, since the magnesium oxide is used as water soluble magnesium salt, after the magnesium oxide is mixed with the magnesium chloride solution to form air hardening gel, the kali salt tailings are used as a skeleton of the gel material, the gel material can be applied to an alkaline environment of the kali salt tailings and can exist stably for a long time, and the filling strength requirement of the gob can be met.
Tailings utilization method in solid soluble kali salt mining process
DU YONGSHENG (author) / SHAN FASHOU (author) / GAO DONGLIN (author) / FAN QISHUN (author) / SUN QINGGUO (author) / HAN JILONG (author) / LI BINKAI (author) / QIN ZHANJIE (author) / WEI HAICHENG (author) / YUAN QIN (author)
2015-12-23
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Comprehensive Utilization and Resources of Gold Mining Tailings
| British Library Online Contents | 2011
Online Contents | 2012