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  Home ->> Products ->> Rotary drum dryer
Name:Continuous rotary dryer     Clicks:1062

  Rotary dryer, also known as drum dryer or rotary dryer, is a common and widely used dryer in mining equipment. It is suitable for drying magnetic concentrate, gravity concentrate and flotation concentrate of metal and nonmetal ores, clay of cement industry and coal slime feed compound fertilizer of coal mine industry, etc. The cylinder of rotary drum dryer is a horizontal rotary cylinder, in which all kinds of plates with different staggered arrangement angles are welded from front to back, and a door ring and a spiral plate are set at the feeding end to prevent material pouring. The utility model has the advantages of reasonable structure, excellent production, high output, low energy consumption, convenient operation, etc. working principle
The dry wet material is sent to the hopper by belt conveyor or bucket elevator, and then enters the feeding end through the feeding pipe through the hopper feeder. The inclination of the feeding pipe should be greater than the natural inclination of the material, so that the material can flow into the dryer smoothly. 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 lower end and contacts with the material in a counter current, and the heat carrier and the material flow into the cylinder in parallel. 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, it is directly or indirectly heated by the heat carrier to dry the wet material, and then sent out by belt conveyor or screw conveyor at the discharge end. The inner wall of the cylinder is equipped with a copy board, which is used to copy and scatter the material, 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 forward. The heat carrier is generally divided into hot air, flue gas and so on. After the heat carrier passes through the dryer, the cyclone dust collector is generally required to capture the materials in the gas. If it is necessary to further reduce the dust content of tail gas, it should be discharged after bag filter or wet filter
1. The dryer designed and produced with multi combined lifting device has made many technical innovations in the lifting device system. The new multi combined lifting device overcomes the "wind tunnel" phenomenon of the traditional dryer, with high thermal efficiency and about 20% reduction in coal consumption.
2. It is suitable for a variety of combustion furnaces: high temperature fluidized bed furnace, coal pulverizing furnace and manual coal feeding furnace.
3. The pin column replaceable gear is used to replace the traditional cast steel gear, which not only saves the cost and investment, but also greatly reduces the maintenance cost and time.
4. The centralized control system can realize the microcomputer central monitoring and management of large enterprises.
5. More production capacity, continuous operation;
6. The structure is simple and the operation is convenient;
7. Less trouble and low maintenance cost;
8. It can be used to dry granular materials, and it is also good for those materials with high adhesion;
9. The operation flexibility is large, and the output of products is allowed to have a large fluctuation range, which will not affect the quality of products;
10. Easy to clean.

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