Horizontal type bundled tubes heating rotary drying machines

The utility model discloses a horizontal tube bank heating rotary dryer, which relates to a dryer used for drying material, and comprises a rotary barrel, a heating tube tank, an inlet box, an outlet box, a wet material inlet, a material outlet, a steam distributing room, a steam inlet, a steam admission and drainage device, a condensate outlet, an air inlet, an air heater, a supporting and actuating device of the rotary barrel. Wherein, the steam distributing room comprises a dished head and an ellipsoidal head. When in use, the wet material enters the wet material inlet, the steam enters the steam inlet and then enters the heating tube tank, the air enters the air inlet and then contacts countercurrent with the material. While heating the heating tube tank with the steam, the ventilated air is used to reduce the relative humidity in the dryer, increase the driving force for drying, and make the temperature of the material out of the dryer reach 70 DEG C, which ensures the material dryness. The spherical part of the dished head is used as a tube plate, the heating tube tank is welded on the tube plate, and a bailing and drainage device is arranged in the ellipsoidal head. The utility model has the advantages of simple structure, safe and reliable operation, high heat transfer efficiency, easy manufacture and maintenance, energy conservation and high production capacity.