Special heat supply device for needle coke production

The utility model relates to a heat supply device special for needle coke production, and belongs to the technical field of needle coke production equipment. The heat supply device solves the problemsthat an existing heat supply device is too single, and a waste heat boiler and a gas-fired boiler cannot be alternately used. The device comprises a waste heat boiler, wherein the waste heat boiler is connected with the gas distributing cylinder through a low-pressure steam pipeline, the waste heat boiler is further connected with a medium-pressure gas pipeline through a medium-pressure steam pipeline, the medium-pressure steam pipeline is further connected with a fuel gas medium-pressure pipeline and then connected with the gas distributing cylinder, the fuel gas medium-pressure pipeline isconnected with the fuel gas boiler, and a low-pressure gas pipeline is further arranged at the top of the gas distributing cylinder. And a pressure reducing valve is arranged on the pipeline which isconnected with the branch c