Application of sand dryer

The sand dryer is designed for the production of dry sand of a drum dryer, through a variety of properties of sand, the sand dryer to optimize the design for a wide range of low moisture content available.Sand finished and drying with excellent results. Sand dryer is widely used in sand and building sand drying, successfully applied to the dry mortar, construction, new materials and other industries.

Structure of sand dryer

Sand rotary dryer consist of the cylinder, roll around the ring, gear, gear roll, drag roller, a small gear, a feeding device, lifting plate, reducer, motor, feeding devices, components, design of combustion according to user needs Furnace, the combustion chamber, bucket elevator, belt conveyor, feeder, dust and other system equipment.

Working principle of sand dryer

Wet material from the belt conveyor or bucket elevator to the hopper, and then by feeder feeding through the feeding device into the terminal. Sand dryer cylinder into a slightly tilted to the horizontal rotating cylinder. Adding material from the higher end, low-end entry by the heat carrier, and the material into a counter-current contact, but also heat carrier and the material together and flow into the cylinder. With the rotating cylinder, the material runs by gravity to a more bottom end. Wet material in the cylinder body to move forward the process, directly or indirectly heating the heat carrier, the wet material to dry, and then the discharge end by the belt conveyor or screw conveyor sent. Tumble dryer wall of the cylinder body with lifting plate, its role is to copy the material up and planted, so that the surface of the material increases the contact with the air flow to improve drying rate and to promote material progress. Heat-carrier is generally divided into hot air, flue gas. After heat-carrier around cylinder dryer back then, generally require cyclone trap the gas inside the material brought down. For further reduction of dust content in exhaust gas should be handled through the bag filter before discharge.

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