Fireproof high-molecular compound colloid material for coal mines

A colloidal material, anti-fire technology, applied in fire prevention equipment, fire prevention, dust prevention, etc., can solve the problems that affect the work and health of windy workers, easily damage workers' eyes and skin, and inconvenient operation, etc., to achieve rapid prevention High temperature combustion, small thermal vibration, strong adhesion effect

Active Publication Date: 2012-03-28
徐州意创化工科技有限公司
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

However, when the ammonium bicarbonate gels into a gel, a large amount of ammonia gas will be precipitated, which will cause a bad working environment and affect the work and health of the unscrupulous workers.
At the same time, this kind of gel can easily damage the eyes and skin of workers if it is accidentally operated; the gel is formulated with sodium metaaluminate, which requires high operation and is not easily soluble in water. damage to health
The above two gel-forming processes require two sets of equipment to work at the same time (the base material and the coagulant must be proportioned separately), which is inconvenient to operate and requires many people.

Method used

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specific Embodiment approach

[0012] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention will be further described below in conjunction with several embodiments. 1) Example 1 A certain mine in Shandong (13-20% volatile content of coal), used the material of the present invention when extinguishing an open fire once, and its raw material ratio was: polyacrylate 40%+polyacrylamide 5%+ Calcium-based bentonite 25% + bauxite shale powder 15% + Gaocen clay 10% + attapulgite 2% + clay 3%. According to weight ratio: material: water = 1: 100, stirred for 5 minutes by pressurized air, prepared into slurry in the material box, and transported to the fire source of the goaf by means of TBW50 / 15 mud pump and grouting pipeline. The coagulation time is 2.2 minutes, and the final gelation time is 8-10 minutes after the water absorption is relatively saturated. In the state of gelation, the initial setting is a thin slurry with strong fluidity. After reaching the predetermined position, the white colloid stron...

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PUM

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Abstract

The invention discloses a fireproof high-molecular compound colloid material for coal mines, which belongs to fireproof materials. The fireproof high-molecular compound colloid material is compounded from 40-100 portions of high-molecular compound and 52-98 portions of an inorganic material, wherein the high-molecular compound is polyacrylate, or is composed of 40-55 portions of polyacrylate, 0-30 portions of carboxymethyl cellulose and 0-15 portions of polyacrylamide; the inorganic material is composed of 30-50 portions of bentonite, 12-18 portions of alumina shale powder, 10-20 portions of kaolin, 0-5 portions of attapulgite and 0-5 portions of clay; and the fineness of each raw material is less than 120 um. The preparation method of the colloid material comprises the following steps: mixing the high-molecular compound for 3-5 minutes; and after respectively spraying the inorganic material on a dry mixer, sufficiently and uniformly mixing the 8 materials for 8-10 minutes. The colloid material has the advantages of high water content, high moisture retention, high heat absorption capacity, quick fireproof effect taking, favorable effect, low possibility of afterburning and low composite cost, and is suitable for preventing and controlling fire for the spontaneous combustion and inflammation laws of different types of coal; and the downhole operation is simple and safe.

Description

technical field [0001] The invention relates to a fire-preventing material, in particular to a polymer compound colloidal material for preventing and extinguishing coal spontaneous combustion fires in coal mines. Background technique [0002] Spontaneous combustion of coal underground in coal mines is one of the five major disasters in coal mines. my country is a large coal-producing country. At present, 50% of the coal mines are threatened by coal spontaneous combustion, and with the development of new lignite coal fields in the central and western regions of my country and the deep mining of old mines, the threat of coal spontaneous combustion becomes more serious. The basic principle of coal spontaneous combustion fire also obeys burning triangles and quadrilaterals. But its formation process, spontaneous combustion environment, conditions and methods for preventing and extinguishing fires have their own characteristics. Coal spontaneous combustion fires have a long or ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L33/02C08L1/26C08L33/26C08K3/34A62D1/02E21F5/06
Inventor 陈孟伯陈舸
Owner 徐州意创化工科技有限公司
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