Coal mine composite colloid fire preventing and extinguishing material and preparation method thereof

Abstract

The invention discloses a coal mine composite colloid fire preventing and extinguishing material. The material is prepared from the following raw materials in parts by weight: 1-2 parts of sodium carboxymethyl cellulose, 1-2 parts of agar, 12-15 parts of coal ash, 0.1-0.2 part of polyacrylamide, 3-5 parts of a cross-linking agent, 1-2 parts of sodium bicarbonate, 3-4 parts of a flame retardant, 3-5 parts of a foaming agent and 90-100 parts of water. The material is low in cost, good in water retention and flame retardance and excellent in fire preventing and extinguishing performance.

Description

technical field

[0001] The invention relates to the technical field of fire prevention and extinguishing materials for mines. Background technique

[0002] Coal mine fires are likely to cause accidents such as gas and dust explosions, which are extremely harmful. Therefore, fire prevention and control is the focus of coal mine safety production. The main cause of fires in coal mines is coal seam spontaneous combustion, and due to fully mechanized top coal mining and gas drainage technologies used in coal mine mining, air leakage in gobs or a large amount of residual coal are likely to cause coal seam spontaneous combustion. The main means of fire prevention and extinguishing in coal mines at present adopts fire extinguishing materials, which have high safety and remarkable effect.

[0003] Commonly used anti-fire extinguishing materials include colloidal materials, mud, foam, and inhibitors, etc. The mechanism of anti-fire extinguishing is: using quantitative addition equip...