Composite gel anti-fire extinguishing material for coal seam fire control

A composite gel and fire-fighting technology, which is applied in the field of composite gel materials, can solve the problems of insufficient filling of cracks, accelerated coal-oxygen composite speed, and poor air blocking effect, so as to reduce the amount of loess and improve the wall adhesion. , the effect of reducing the loss of waste

A composite gel and fire-fighting technology, which is applied in the field of composite gel materials, can solve the problems of insufficient filling of cracks, accelerated coal-oxygen composite speed, and poor air blocking effect, so as to reduce the amount of loess and improve the wall adhesion. , the effect of reducing the loss of waste

CN101767975BInactive Publication Date: 2011-12-21BEIJING UNIV OF TECH +1

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  • Composite gel anti-fire extinguishing material for coal seam fire control

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-6

[0025] Composite gel fire extinguishing material, the main components are shown in Table 1. The loess is dried, ground, and sieved, and then mixed with super absorbent mineral clay, thickener, and sodium bicarbonate coagulant according to the ratio in Table 1. Mix evenly in the medium to obtain a solid mixture; then fully stir the water glass base material, water and the solid mixture according to the ratio in Table 1 to make a slurry.

[0026] Table 1 raw materials and dosage (unit: kilogram)

[0027] Example

1

Example

2

Example

3

Example

4

Example

5

Example

6

water glass

60

74

80

70

65

60

sodium bicarbonate

20

21.5

30

27

21

25

Sodium polyacrylate

10

0.5

5

2

polyacrylamide

5

3

5

Methylcellulose

0.5

3

1

loess

100

...

Embodiment 2、3

[0033] For Embodiments 2 and 3, the present invention adopts a pipe network type large-flow glue injection process, utilizes the existing ground grouting fire extinguishing system of the coal mine, realizes large-flow transportation of gel fire extinguishing materials, and finally realizes the implementation of large-area fire extinguishing in mines. The colloid injection equipment adopts ZM-5 / 18N colloid mud injection machine, which can be used alone or in conjunction with the ground grouting system to quickly eliminate large-scale mine fires.

[0034] The composite gels prepared in the above examples all have good properties, and the fire extinguishing effect is very ideal.

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Abstract

The invention discloses a composite gel anti-fire extinguishing material for preventing and controlling coal mine fires, which is composed of water glass base material, coagulation accelerator, composite aggregate and thickener materials. The added thickener can increase the consistency of the colloid and improve the suspension of the mixed slurry. The composite gel has a simple preparation process and is easy to apply on site; the formed gel has a certain strength and can play a plugging role; the source of raw materials is abundant and the price is low; the product is non-toxic, harmless and tasteless, does not pollute underground mines, and is harmless to the human body Toxic and side effects have obvious market application prospects.

Description

technical field [0001] The invention belongs to coal mine fire prevention and extinguishing materials, in particular to a composite gel material for coal mine fire prevention and control in coal mines. Background technique [0002] The spontaneous combustion conditions of coal mines in my country are complex, and the mines that spontaneously ignite and ignite have a wide range and a large number, which seriously threatens the personal safety of mines and miners and causes huge losses to the country. When the coal seam spontaneously combusts, it decomposes and oxidizes at high temperature and releases a large amount of toxic and harmful gases; at the same time, the high temperature promotes the release of gas contained in the coal seam, which may cause a gas explosion. Therefore, the coal seam spontaneous combustion is extremely harmful and must be extinguished quickly and thoroughly fire. [0003] Leakage sealing technology is more effective for fire prevention, but when it...

Claims

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Application Information

Patent Timeline
21 Dec 2011
Publication
CN101767975B
IPC
C04B28/26; C04B14/10
Inventors
索红莉; 朱红青