Quick-setting slurry for fire extinguishing and cooling of gangue dump as well as preparation method and application of the quick-setting slurry

Abstract

The invention discloses quick-setting slurry for fire extinguishing and cooling of a gangue dump as well as a preparation method and application of the quick-setting slurry. The invention belongs to the technical field of geological disaster prevention. Raw materials for preparing effective components of the quick-setting slurry comprise the following components: water, a base material, a strong suspension complexing agent, a solid phase flow state regulator and a liquid phase flow state regulator; and high-water-content strong suspension slurry is turned into jelly semisolid which cannot flowin a certain period of time. The preparation method comprises the following steps: mixing the base material and the solid phase flow state regulator, adding the strong suspension complexing agent andthe water, mixing, finally adding the liquid phase flow state regulator, stirring, mixing, starting a pump, and infusing the mixture into a gangue dump. The quick-setting slurry disclosed by the invention has the advantages of high water content, no separation of a solid phase and a liquid phase, good suspension property and capability of forming colloidal slurry within preset time; the defects that pure water and traditional slurry are low in water content and high in flowing speed are overcome, the slurry can cover and adhere to a target body to achieve the synergistic effect of cooling, oxygen insulation and suffocation, the slurry is suitable for fire extinguishing and cooling of all gangue dumps, and the preparation method is used for preparing the quick-setting slurry.

Description

technical field [0001] The invention belongs to the technical field of prevention and control of geological disasters, and relates to an engineering quick-fixing slurry, specifically a quick-fixing slurry for gangue hill fire extinguishing and cooling. The invention also provides a quick-fixing slurry for gangue hill fire extinguishing and cooling. The preparation method of the slurry, the present invention also provides an application of fast-solidifying slurry for gangue hill fire extinguishing and cooling. Background technique [0002] Coal gangue is a kind of solid waste discharged during the coal mining and washing process. After a large amount of accumulation, it forms a coal mine gangue hill. A large amount of coal gangue is not only a waste of land resources, but also spontaneous combustion, rain, mud, etc. , causing serious harm to the environment. In particular, the coal in the gangue is easy to oxidize, and the poor heat dissipation makes the heat continuously ac...

AI Technical Summary

Problems solved by technology

Among them, the disadvantages of covering soil are: large amount of engineering, great environmental impact, and it is difficult to ensure the compactness of covering soil, and the effect of fire extinguishing and cooling is not significant

Water is the most widely and economical method at present to extinguish fires and cool down gangue hills. However, gangue hills have large pores and are not easy to store water. Simply using water or ordinary slurry to extinguish fires and cool down will cause solid-liquid phase segregation in the slurry of gangue hills, and water will flow along the dominant channel. The phenomenon of running away, or the water vaporizes immediately after reaching the high-temperature area, that is, the fire area, cannot achieve the effect of rapid fire extinguishing and cooling

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