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

A technology of gangue mountain and slurry, applied in the field of geological disaster prevention and control, can solve the problems of inability to rapidly extinguish and cool down, the compactness of covering soil is difficult to ensure, and the effect of fire-extinguishing and cooling is insignificant, and achieves good fire-extinguishing and cooling effect, convenient preparation method and economical saving. The effect of purchasing time

Active Publication Date: 2020-06-05
XIJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1 Quick solidification slurry used for gangue hill fire extinguishing and cooling

[0028] This embodiment is a fast-solid slurry used for extinguishing and cooling gangue hills. The raw materials for making its active ingredients include water, base material, strong suspension agent, solid-phase flow regulator, and liquid-phase fluid regulator. The strong suspension water-binding agent has the characteristics of suspension and water absorption, so that the quick-solid slurry in this embodiment can maintain a relatively high water content, and at the same time, it can also ensure the fluidity of the quick-solid slurry, which is conducive to the rapid flow of the quick-solid slurry into the gaps in the gangue hill middle.

[0029] Among the components of the present embodiment, the base material is cement, the water is tap water, the strong suspension complexing agent is sodium alginate, the solid-phase fluidity regulator is phosphate, the liquid-phase fluidity r...

Embodiment 2-8

[0030] Example 2-8 Quick-fixing slurry for gangue hill fire extinguishing and cooling

[0031] Embodiments 2-8 are quick-solidifying slurry used for gangue hill fire extinguishing and cooling respectively, and the specific components, weight and other parameters of each raw material are shown in Table 1:

[0032] Table 1 The content of each component in the fast solid slurry provided by embodiment 1-8

[0033]

[0034] .

Embodiment 9

[0035] Example 9 The preparation method of the quick-solid slurry used for fire extinguishing and cooling of gangue hills provided in Examples 1-8

[0036] Example 9 is the preparation method of the fast-solidified slurry used for fire extinguishing and cooling of gangue dumps provided in Examples 1-8. Before preparing the fast-solid slurry of this embodiment, first select the mixing tank and take three slurry tanks, one of which is the first reaction tank 1, one is the second reaction tank 2, and the third is the stirring pumping tank 3. The first reaction tank 1 and the second reaction tank 2 can be exchanged with each other, that is, in the pulping process of this process, the first reaction tank 1 first weighs the components in proportion, and mixes the base material and the solid-phase flow regulator , stir, then add a strong suspending agent and water to mix, stir for 2 minutes, finally add a liquid phase flow regulator, stir for 1.5 minutes, and infuse into the stirrin...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A62D1/00E21F5/06
CPCA62D1/005A62D1/0064E21F5/06
Inventor 袁克阔傅少君高山刘恺德冯祥波孙超伟杨莎莎
Owner XIJING UNIV
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