1、 Advanced technology adopted to reduce the dust removal load

　　The novel feeding and discharging devices are adopted to avoid the blocking, non-continuity, non-uniformity and reverting of materials

　　of the drum dryer and reduce therefore the working load of dust removal system.

　　2、 Concurrent flow drying method, high thermal efficiency

　　The concurrent flow drying method is applied for the dryer made by Y.H.Heavy. The flue gas and wet materials are fed into the dryer

　　from the same side. The high evaporation intensity can be obtained by high temperature of flue gas. The exit temperature of dryer is low with

　　the performed heat efficiency.

　　3、 Low wear rate, steady running

　　The “zero horizontal thrust” has been achieved by the dryer reducing greatly the wear of thrust shaft to ensure the steady running of the

　　dryer. The “ centering type support roller” is adopted to have always the lineal contact between support roller and tire in order to decrease the

　　wear and power consumption maximum.

　　4、High automation extent, convenient operation

　　The running parameters which are changed as per nature of materials will make the materials forming a stable full section materials curtain

　　in the dryer to get the heat exchange more fully. And the moisture index can be easily adjusted on basis of customer requirement.

　　5、 Anti-overload ability, low drying cost

　　The dryer is featured by its strong anti-overload ability, big handing capacity, low consumption of combustibles and low drying cost.

　　spiral progressive type to make the heat exchanges. Then the materials move to the another side of inner drum to be ready to enter

　　into the middle drum in order to have the counter-current drying. In the middle drum, the materials are constantly lifted and move forward in type

　　of “two steps advance & one step back”, there the materials absorb not only the heat dissipated from the inner drum, but also the heat from the

　　middle drum, as so the drying time is prolonged and the optimal drying conditions can be obtained.

　　Then the materials move to the another end of the middle drum and fall down on the outer drum. In the outer drum, the materials move forwards

　　in “rectangular & multi loop mode”. The materials which achieve the drying effect fast march and discharge out under the action of hot air; and

　　the other ones which don’t achieve the drying effect (rather wet) can’t march fast due to the gravity, thus these materials must be dried fully in the

　　rectangular lifting plates to complete the drying process.