20150197693 | External Gas Heating Device of Coal Pyrolyzing Furnace - An external gas heating device of a coal pyrolyzing furnace is positioned on the middle part of a furnace body and around the outer wall of a carbonizing chamber and comprises more than one group of first gas heater and second gas heater that have the same structure and a gas reversing device. The gas reversing device supplies air and purified gas into a combustion chamber of the first gas heater to be combusted and meanwhile sucks hot waste gas from a combustion chamber of the second gas heater. In the same way, the gas reversing device supplies air and purified gas into the combustion chamber of the second gas heater to be combusted and meanwhile sucks hot waste gas from the combustion chamber of the first gas heater. In the present invention, the aims of energy conservation and consumption reduction are fulfilled, and the coking cost is saved. | 07-16-2015 |