Three return form, improve the drying efficiency YONGLI three layers drum dryer equipped with advanced three return form, lengthened the mixing time of hot wind and materials, make full use of heat energy and improve the drying efficiency. Smooth running, advanced structure, low motor power, greatly reducing the cost of the drying machine. Special lifting plate design, improve the drying effect YONGLI three layers drum drying machine, lifting board with special design, the layout is reasonable, can make the material and the hot air fully mixed, and reduce the material residue. Reasonable structure, high efficient separation of hot air and material. The outer layer of the cylinder is insulated to prevent heat loss and increase the utilization rate of heat energy. Structural diversity, easy to transport and installation YONGLI keep improving drying equipment for many years, through continuous improvement, the cylinder has been using fractal body design, perfectly solved the problem of...