In view of coal mine dust explosion must have three conditio
Date:2013-11-26 Hits:
The coal dust explosion must have three conditions at the same time:
1) coal dust is explosive, explosion is intense reaction to generate combustible gas and coal dust encountered after high temperature oxidation. But some dust heated oxidation to produce combustible gas after only few, cannot make the coal dust explosion, so the coal dust can be divided into explosive and non explosive coal dust and coal dust;
2) coal dust suspended in the air and reach a certain concentration, according to the research data, the concentration of coal dust explosion 45-2000g/m3 explosion, dust concentration of the strongest 300-400g/m3;
3) with a high temperature heat source exists, China's coal dust explosion ignition temperature around 650-1050 ℃.
The three conditions of coal dust explosion must possess at the same time, the conditions to take corresponding measures to prevent dust explosion conditions, prevention of dust explosion work can be effectively implemented.
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