Expanded feed drying device

The utility model belongs to the technical field of drying equipment, and provides an expanded feed drying device. The expanded feed drying device comprises an enclosure, a roller and multiple steam pipelines, wherein the roller is arranged on the enclosure and is used for drying to-be-dried objects, and the multiple steam pipelines are arranged in the enclosure and are used for carrying out heating drying on the to-be-dried objects. According to the expanded feed drying device provided by the utility model, the steam pipelines are disconnected in easy-to-break positions of the steam pipelines, pipe orifices in the easy-to-break positions of the steal pipelines are sealed pipe orifices, thus two adjacent steam pipelines of which two corresponding ends are simultaneously and fixedly connected can stretch freely, the technical problems in an existing expanded feed drying device, particularly an edge throwing type expanded feed drying device that easy-to-break positions of steam pipelines are broken after thermal expansion and cold contraction, steam water in the steam pipelines is directly sprayed to the surfaces of the to-be-dried objects, the to-be-dried objects are mildewed, and the product quality is affected are solved, and a lot of money is saved.