Specification :

Drying equipment, Drying equipment supplier, Drying equipment price

jintai30Sand dryer is also called rotary dryer, which is able to handle materials in quantity. Due to its reliable operation, excellent adaptability and large handling capacity, it is widely used in metallurgical industry, construction materials, food industry, light industry, chemical engineering industry, coal industry, mining industry and pharmaceuticals industry. The machine is applicable to granular materials, sticky and paste materials or watery materials. The advantages are high productivity, wide application scope, small flow resistance force, easy operation and so on. It is commonly used to dry sand, powdered ore, coal slurry, fowl manure, cow manure and so on.

Sand dryer work Principle:

Sand from the belt conveyor or bucket elevator to the hopper, then through the hopper of the feeder pipe by feeding into the feeding end.Feeding pipe slope is greater than the natural inclination of the material, in order to smooth the material into the dryer sand ( yellow sand dryer) inside.Dryer cylinder is tilted slightly into the horizontal rotating cylinder.Material from the higher end of the joined body heat from the low-end entry into countercurrent contact with the material, but also body heat and material together and flow into the cylinder.With the rotating cylinder by gravity material than the end of the run to the end.Wet material in the cylinder body to move forward the process, either directly or indirectly, the body heat of heat transfer, the wet material to dry, then the discharge end by the belt or screw conveyor sent.Dryer in the sand ( yellow sand dryer) cylinder wall with the body copy board, its role is to copy the material up and planted to make contact with the surface of materials and increases air flow to improve drying rate and to promote material progress .Heat carrier is generally divided into hot air, flue gas.After the heat-carrier through the dryer, the general need within the gas cyclone trap material brought down.To further reduce exhaust gas dust content, but also through bag filters or wet dust collector and then put emissions.

Indirect-heat dryer

three-roller energy-saving dryer Structure and working principle
Materials are fed into inner roller by feeding device and there to be raised and thrown down by shoveling plate to realize heat exchange; materials move to the other end of inner roller and to be dried by counter flow when they enter into middle roller-there the materials are continuously and repeatedly raised to forward. Materials in the middle roller have achieved the best drying status because of heat from inner roller and middle roller and prolonged drying time. In outer roller, fully dried materials will move fast and be discharged under the effect of hot air; while materials not fully dried will stay to be fully dried.

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