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Raw materials are spreaded on the conveying belt through suitable auxiliary mechanism such as distributor, vibrating belt, pulverizer of granulator, belt passes the channel which containing one or several heating units; heating unit is equipped with air heater and circle system. Each channel has one or several damp exhaust system. When raw material is transited, hot air passes through or over it. In this way it makes raw material dry uniformly.
The materials are uniformly distributed on the mesh-belt by the material feeder. The mesh-belt generally adopts 12-60 mesh stainless steel mesh and it is drawn by a transmission device and move inside the dryer .
The dryer is composed of several sections. For each section, the hot air is circulated separately. Part of exhausted gas is exhausted by a special moisture exhaust blower. The waste gas is controlled by an adjustment valve. The hot air passes through the mesh-belt covered with bring water material away.
The mesh-belt moves slowly, running speed can be freely adjusted according to the material property.The final products after the drying process will fall into the material collector continuously.
The top and low circulation units can be freely equipped according to the user's requirements.The number of section might be selected according to the production demands.