Similarly, the indirect heat transfer dryer and the assembly type dryer are the combination of steam drying and hot gas drying. Fuel is added through the combustion furnace, while the steam generator is heated to generate steam, and the hot water circulating exchanger generates hot air. At this time, the steam is used to boil and degrease the materials, and then the hot air of the heat exchanger is used. Under the action of the fan, the hot air in the body flows and circulates repeatedly, taking away the water discharged from the materials through the specially designed pipes, so as to achieve the purpose of drying.
The wet chips enter the dryer from the top of the vertical dryer, fill the whole dryer, blow in the lower part of the hot air valve dryer, and discharge through the top of the backdoor of the whole chip material layer in the dryer for recycling. The dried slices emerge from the bottom of the dryer. The dryer is filled with slices. Ju slices are continuously added from the top of the dryer. The slice column coffin slices in the dryer flow with piston gravity. The hot air is fed into the lower part of the dryer. The gas and solid are in countercurrent contact for heat exchange. The moisture in the recovered slices can be discharged with the air by the steam evaporated by Yanyou.