Intumescent flame retardant for mine

Abstract

The invention provides an intumescent flame retardant for a mine. The intumescent flame retardant is characterized in that the intumescent flame retardant comprises following components by weight part: 100 parts of polyvinyl chloride, 50 parts of nickel hypophosphite Ni(H2PO4)2.6H2O, 20 parts of aluminum phosphate, 20 parts of organic montmorillonite processed by using dodecyl-to-octadecyl trimethyl ammonium chloride or ammonium bromide, 30 parts of zinc borate, 10 parts of heat stabilizers, 10 parts of one of or a mixture of melamine, melamine polyphosphate, ammonium polyphosphate (APP), phosphinate, melamine pyrophosphate (MPP) and melamine cyanurate (MCA), 5 parts of modifiers, 3 parts of processing additives, 3 parts of wear resisting agents and 5 parts of oxidants.

Description

technical field [0001] The invention belongs to the technical field of preventing and controlling coal spontaneous combustion in mines, and in particular relates to an intumescent flame retardant for mines. Background technique [0002] At present, mine accidents occur frequently in my country, especially gas explosions, causing large-scale mine fires. Mine fires are also called mine fires or underground fires, which refer to coal mine underground roadways, working faces, chambers, and goafs. The fire at the site seriously affected and threatened underground safety. However, the fire performance of many mines in my country is relatively poor at present, so the problem to be solved urgently is to improve the fire performance of mines and strengthen the firmness of mines. Existing mine fire prevention is exactly by being coated with one deck common fireproof paint on the outermost layer, the effect played is very weak, once there is open flame at close range, a fire will break...

AI Technical Summary

Problems solved by technology

At present, the fire performance of many mines in our country is poor, so the problem to be solved is to improve the fire performance of mines and strengthen the firmness of mines.

The existing mine fire protection is to apply a layer of ordinary fireproof paint on the outermost layer, which plays a very weak role. Once there is an open flame at a close distance, a fire will break out and the loss will be very heavy.

[0003] Although the traditional method of spraying and pouring inhibitors can play a certain role in preventing coal spontaneous combustion, it has great limitations, especially for some long and narrow mine roadways, it is impossible to spray and pour liquid inhibitors into Designated areas, and it is difficult to achieve uniform distribution, and the flame retardant time is limited, so it is difficult to achieve effective flame retardant prevention and control effects

The existing above-mentioned traditional methods are difficult to achieve ideal prevention and control effects on mine coal with high requirements for spontaneous combustion of coal