Indirect heat transfer dryer Henan Hongxing

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indirect dryer

Indirect heat transfer dryer is widely used in building materials, metallurgy, chemical industry, cement and other industries. It is mainly composed of rotary body, lifting plate, transmission device, support device and sealing ring. ...

Overview of indirect heat transfer dryer

Indirect heat transfer dryer is widely used in building materials, metallurgy, chemical industry, cement and other industries. It is mainly composed of rotary body, lifting plate, transmission device, support device and sealing ring. The indirect heat transfer energy-saving dryer has strong adaptability to materials, can dry various materials, and the operation of the equipment is simple and reliable.

 indirect dryer

Indirect heat transmission dryer is widely used in industries like the building materials, metallurgy, chemical engineering and cement. It is made up of rotary part, raising board, driving device, supporting device and seal ring. The energy saving indirect heat transmission dryer has strong adaptability for drying all kinds of materials with simple operation steps.

Performance characteristics of indirect heat transfer dryer

1. The investment required for the equipment is 1 / 6 of the imported products.

2. The final moisture content of material is less than 0.5%, which is the product of dry mixed mortar and slag powder production line.

3. The thermal efficiency of the self insulation cylinder is as high as 70% (the thermal efficiency of the traditional single drum dryer is only 35%), which improves the thermal efficiency by 35%.

4. The fuel can adapt to coal, oil and gas. It can be used to bake block material, granular material and powder material below 20 mm.

5. Compared with the single drum dryer, the land occupation is reduced by about 50%, the civil engineering investment is reduced by about 50%, and the power consumption is reduced by 60%.

6. The final moisture index can be easily controlled according to the user's requirements.

7. The outlet gas temperature is low and the dust removal equipment is used for a long time.

8. It doesn't need big and small gear transmission, and adopts supporting wheel transmission.

 Close up view of indirect dryer heat transfer

Working principle of indirect heat transfer dryer

The material enters into the inner layer of the rotary drum by the feeding device of the indirect heat transfer dryer and dries in the downstream direction, The material in the inner layer of the sheet is continuously copied up and scattered in a spiral way In heat exchange, the material moves to the other end of the inner layer and enters into the middle layer for countercurrent drying. The material is repeatedly raised in the middle layer, showing a moving mode of two steps forward and one step backward. In the middle layer, the material not only fully absorbs the heat emitted by the inner drum, but also absorbs the heat of the middle drum, and extends the drying time. The material reaches the drying state here. The material moves to the other end of the middle layer and falls into the outer layer. The material moves in a rectangular multi loop way in the outer drum, so that the dried material can move quickly under the action of hot air and be discharged from the drum. The dry wet material can not move fast because of its own weight. The material is fully dried in this rectangular plate, and the indirect heat transfer dryer completes the drying purpose.

Materials enter the inner side of the drum through the feeding device to realize current flow drying process. They get raised and scattered under the shoveling plate in a spiral advancing way to exchange heat. Then the materials enter the middle layer of the inner wall through the other end to realize counter current drying process. They are lifted in over and over in the middle layer which advance in two-steps forward and one-step back way. They absorb heat from both inner drum and middle drum, which extend the drying time and realize the best drying condition. Finally, materials fall into the external layer of the drum from the other end of the middle layer, processing in a rectangle multi-loop way. The dried materials move quickly out of the drum under the hot air, while the wet ones remain because of their own weight. Materials are dried completely inside the rectangle shoveling plate and then cooled by the single drum cooler, thus finishing the whole drying process.

 On site heat transfer diagram of indirect dryer

Characteristics of Red Star indirect heat transfer dryer

The Red Star indirect heat transfer dryer has air holes in the outer layer and is isolated from the inner cylinder. The hot air passes through the outer air hole to raise the internal temperature of the whole dryer, and the materials pass through the inner cylinder to achieve the purpose of drying. In this way, the hot air or other hot medium does not directly contact with the material, thus avoiding the pollution of the material. The dryer is suitable for materials that are easy to be polluted and react with hot air.

Manufacturer of indirect heat transfer dryer

Henan Hongxing Mining Machinery Co., Ltd. is located in Zhengzhou City, Henan Province. Is a large indirect heat transfer dryer manufacturer, the production of indirect heat transfer dryer with reasonable layout, easy installation and other advantages. The price of indirect heat transfer dryer is reasonable. Welcome new and old customers to visit our factory.

Indirect heat transfer dryer manufacturer address: China - Henan - Zhengzhou - high tech Industrial Development Zone - Tanxiang road - 8.

 Red Star workshop

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