| 摘要 |
FIELD: fire safety.SUBSTANCE: invention relates to means of suppression and prevention of fires in coal deposits. Disclosed is a method of producing combustion suppressors for suspension containing crushed fuel ash, for localisation of fire on coal deposits, in which material used is crushed fuel ash, aluminium phosphate, magnesium chloride, sodium salt of carboxymethyl cellulose, sodium silicate, sodium bentonite and water. Method involves following steps: a) adding to water 25-30 wt% of crushed fuel ash, 2-4 wt% aluminium phosphate, 2-5 wt% magnesium chloride, 0.8-1.5 wt% sodium carboxymethyl cellulose and thorough mixing to produce mixed solution A; b) adding to water 3-5 wt% of sodium silicate, 1-2 wt% sodium bentonite and thorough mixing to produce mixed solution B and c) adding solution B to solution A while thoroughly stirring to homogeneous state, ratio of solution B and solution A by weight is 1:2.EFFECT: high efficiency of fire suppression and cooling fire areas on coal deposits.1 cl |
