In the chemical fertilizer industry, the small and medium size of chemical fertilizer factory occupy large scale in the whole fertilizer industry. In the past, most of our fuel is lumanthracite coal and any kinds of anthracite mould coal, now we are facing the problem of raising price and cost of anthracite coal. The bituminous coal water coal gas gasifier with double fire layer could use the fuel like bituminous lumcoal and mould coal to replace expensive anthracite, the cost of fertilizer factory will be reduced by 150-200 CNY/TON.
There are two burning layer located in the toand bottom of the bituminous coal water coal gas gasifier with double fire layer. The volatile matter such as tar oil which is produced from the&nbs; burning coal will be pyrolysed by the high temperature of tofire layer, so that the coal gas does not content any pollutant .The main function of bottom fire layer make the carbon content of ash is low after gasification, so that the carbon lost of ash is low an