To provide a manufacturing method of a carbide capable of obtaining a high quality, high functional carbide in a high yield, and continuously in an energy-saving way, and a carbide manufacturing unit.
In this carbide manufacturing unit, the inside of its carbonization furnace is divided into a former process zone in which a material to be treated is dried, thermally decomposed, and carbonized, and a latter process zone in which refining is carried out, and the respective zones are independently subjected to temperature control, and, in the furnace, there is constructed a heat transfer tube which is capable of coaxially rotating with the carbonization furnace and has an air supplying tube and an air ejecting tube, so that the former process zone is indirectly heated by a high temperature combustion gas of a carbide gas, and the latter process zone is directly heated by partial combustion of a thermally decomposed gas. In the heat transfer tube, the high temperature combustion gas of the carbide gas is introduced and circulated.
ISHIDA MASAYOSHI
YAMANE KENJI
