How did the explosion of the boiler cause
Generally speaking, there are three conditions for the explosion, one is the accumulation of fuel and combustion air; the second is the concentration of fuel and air mixture in the explosion limit; third is enough ignition energy.
Combustible gas or dust and air mixture in a short period of time a chemical reaction, resulting in high temperature, high pressure gas and shock waves, more than the surrounding buildings, containers, piping carrying capacity to cause damage, resulting in personal and equipment accidents, said
Natural gas explosion limit of about 5%, the lower limit of coal explosion is 20 ~ 60g / m3, the explosion pressure of up to 0.3 ~ 1.0MPa.
In the case of boilers, combustible materials refer to natural gas, gas, liquefied petroleum gas, oil mist and pulverized coal. There are explosion in the hearth, blasting and blasting system.
