Material heating device

摘要: A material heating device comprises a rotary kiln (1), plurality of heat exchange tubes (2), hot air hood (3), high-temperature gas input mechanism (4), an exhaust collecting chamber (5), and output pipeline (6), wherein, the (1) is provided with feed end (7) discharge (8), (2) are in (3) outside inlet connected to outlet (5) that communication cavity between insulation layer (13) channel. The directly contact material, most transferred through conduction radiation less loss. Meanwhile, after does not coal generated by pyrolysis, thus produced has high purity, value, utility value.