Main working principle of sand dryer Henan Hongxing

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The main working principle of sand dryer

Sand Dryer In other words, we often say that the rotary dryer adopts the European energy-saving clamp structure. It is a dryer for handling a large number of materials, with reliable operation, large operation flexibility, strong adaptability and large processing capacity. By right Market analysis of sand dryer It can be seen that sand dryer is generally suitable for granular materials. Widely used in building materials, chemical industry, casting and other industries, can adapt to coal, oil, gas and other fuels.

 Sand Dryer

The sand dryer has a clear structure and a sense of hierarchy. It is mainly composed of cylinder body, front roller ring, rear roller ring, gear, stop roll, drag roller, pinion, discharge part, lifting plate, reducer, motor, hot air channel, feeding chute, furnace body, etc.

Sand by Belt conveyor or Bucket elevator It is sent to the hopper, and then enters the feeding end through the feeding pipe through the feeding machine of the hopper. The slope of the feeding pipe should be greater than the natural inclination of the material, so that the material can flow into the sand dryer (yellow sand dryer). The dryer cylinder is a rotating cylinder slightly inclined to the horizontal line. When the material is added from the higher end, the heat carrier enters from the low end and contacts with the material countercurrent, and some heat carrier and material flow into the cylinder together.

With the rotation of the cylinder, the material moves to the lower end under the action of gravity. When the wet material moves forward in the cylinder, the heat is directly or indirectly obtained from the heat carrier, so that the wet material can be dried, and then sent out by belt conveyor or screw conveyor at the discharge end. The inner wall of the sand dryer (yellow sand dryer) is equipped with a copying board. Its function is to copy and scatter the materials, so as to increase the contact surface between the material and the air flow, so as to improve the drying rate and promote the material to move forward. Heat carrier is generally divided into hot air, flue gas and so on. After the cyclone dust collector, the material carried by the cyclone collector is generally required. If it is necessary to further reduce the dust content of tail gas, it should be discharged after passing through bag filter or wet dust collector.

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