Sand dryer, also known as river sand dryer, yellow sand dryer, quartz sand dryer, is a kind of drying equipment that handles a large number of materials. It has reliable operation, flexible operation, strong adaptability and large processing capacity. River sand sand dryer is generally suitable for granular materials. Especially the drying effect of sand, river sand and quartz sand is very good. The advantages of river sand sand dryer are large production capacity, wide application range, small flow resistance, large allowable fluctuation range in operation, and convenient operation. Commonly used for drying river sand, artificial sand, quartz sand, ore powder, coal slag, etc.
1. Cylinder body; 2. Front roller ring; 3. Rear roller ring; 4. Gear; 5. Block roller; 6. Drag roller; 7. Pinion gear; 8. Discharging part; 9. Lifting plate; 10. Deceleration Machine; 11, motor; 12, hot air duct, 13, feed chute; 14, furnace body and other parts.
In addition, according to the needs of users, gas generators, combustion chambers or supporting elevators, belt conveyors, quantitative feeders, cyclones, induced draft fans, etc. can be designed.
The sand is sent to the hopper by the belt conveyor or bucket elevator, 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 smoothly. The dryer cylinder is a rotating cylinder slightly inclined from the horizontal line. The material is added from the higher end, the heat carrier enters from the lower end, and comes into countercurrent contact with the material, and the heat carrier and the material flow into the cylinder together. As the cylinder rotates, the material moves to the lower end under the effect of gravity. During the forward movement of the wet material in the cylinder, the heat is directly or indirectly obtained by the heating medium, so that the wet material is dried, and then sent out by a belt conveyor or a screw conveyor at the discharge end. A copy board is installed on the inner wall of the Yuhe sand dryer cylinder, and its function is to copy and scatter the material, so that the contact surface between the material and the air flow is increased to increase the drying rate and promote the material to advance. The heating medium is generally divided into hot air and flue gas. After the heating medium has passed through the dryer, a cyclone dust collector is generally required to capture the material in the gas. If it is necessary to further reduce the dust content of the exhaust gas, it should also be discharged after passing through a bag dust collector or a wet dust collector.