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Method for fast preparing mine tailing underground filling material
The invention discloses a method for fast preparing a mine tailing underground filling material. The method comprises the following steps of putting mine tailing, a filling base (comprising furnace slag micro-powder, steel slag micro-powder, red mud, fly ash, silica fume, waste gypsum, quicklime and solid sodium silicate) and water into a cement mortar mixer, carrying out mixing, pouring the uniform mixture into a plastic mold, putting the plastic mold into a microwave device with microwave frequency of 915-5800 MHZ, carrying out radiation at microwave output power of 80-800W for 5-30min, putting a test block into a maintenance case, and carrying out maintenance until desired age so that the mine tailing underground filling material satisfying filling requirements is obtained. The mine tailing underground filling material has a low cost, a fast curing rate and strength satisfying requirements on filling and mining under mine, solves the technical problem that the existing mining cementation filling material has a slow curing rate and a high filling cost, is suitable for filling various metal mines suitable for cemented filling mining and provides a novel feasible approach for resource utilization of industrial waste residue such as blast furnace slag, steel slag, fly ash and waste gypsum.
Method for fast preparing mine tailing underground filling material
The invention discloses a method for fast preparing a mine tailing underground filling material. The method comprises the following steps of putting mine tailing, a filling base (comprising furnace slag micro-powder, steel slag micro-powder, red mud, fly ash, silica fume, waste gypsum, quicklime and solid sodium silicate) and water into a cement mortar mixer, carrying out mixing, pouring the uniform mixture into a plastic mold, putting the plastic mold into a microwave device with microwave frequency of 915-5800 MHZ, carrying out radiation at microwave output power of 80-800W for 5-30min, putting a test block into a maintenance case, and carrying out maintenance until desired age so that the mine tailing underground filling material satisfying filling requirements is obtained. The mine tailing underground filling material has a low cost, a fast curing rate and strength satisfying requirements on filling and mining under mine, solves the technical problem that the existing mining cementation filling material has a slow curing rate and a high filling cost, is suitable for filling various metal mines suitable for cemented filling mining and provides a novel feasible approach for resource utilization of industrial waste residue such as blast furnace slag, steel slag, fly ash and waste gypsum.
Method for fast preparing mine tailing underground filling material
NA QIONG (author) / YANG XIAOHUA (author) / CHANG QIANFA (author) / WANG QI (author) / YANG MINGLU (author)
2015-05-06
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
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