METHOD FOR DECOMPOSING COAL MATERIAL WITH CIRCULATING HEATING GAS AND EQUIPMENT THEREOF

摘要

A method for decomposing coal material with circulating heating gas and an equipment thereof are provided. The equipment for decomposing coal material with circulating heating gas includes a sealed kiln with an inlet and an outlet. A coal material propelling and decomposing facility is installed in said kiln. A pipe for collecting coal decomposing gas is installed at one end of said sealed kiln and a pipe for inputting high-temperature gas is at the other end of said sealed kiln. The said pipe for collecting decomposing gas of coal is connected to a gas aftertreatment facility and also connected to the pipe for inputting high-temperature gas by a recycle pipe. A heating facility is installed on the said recycle pipe or/and the high-temperature gas input pipe.