Roller type hot air dryer

Abstract

The invention provides a roller type hot air dryer. The roller type hot air dryer comprises a roller drying bin, a discharging device, a riding wheel support, a heating device, a driving device, an exhaust device, a three-way pipe, a gear ring, a fan, a sealing device and a support. The roller drying bin comprises a heating bin, a drying bin body and a heat conduction working medium. The riding wheel support supports the roller drying bin. The exhaust device is fixed to a flange of an exhaust port of the three-way pipe, one end of the discharging device is fixedly connected to a flange of a feed inlet of the three-way pipe, and the other end of the discharging device is fixedly connected to a hopper; a discharging port of the three-way pipe and a feed inlet of the roller drying bin are dynamically and hermetically connected and fixed through a sealing device. When a certain heat pipe is damaged and leakage is caused, only the heat pipe cannot work, but application of the whole drying bin is not affected. The roller drying bin rotates under the driving action of the driving device, a spiral blade has stirring and propelling functions, materials are not likely to agglomerate when thematerials are dried in the drying bin body, the dried materials are cooled in a cooling section, the drying efficiency of the materials is improved, and the drying effect of the materials is optimized.

Description

technical field [0001] The invention relates to a drum dryer, in particular to a drum type hot air dryer. Background technique [0002] Now on the market, there are drying equipment for materials such as grain, chemical products, coal, stones, sand, mineral products, pasture, crops, and local specialties. The heating of materials drying on the market is to dissipate heat through metal pipes placed in parallel. Or the secondary heat exchange through the heat exchanger outside the drying equipment is hot air, the heat exchange efficiency of heat energy is low, and the heat energy required for drying will increase a lot. The heat exchange tube in the drum drying bin leaks and is not easy to repair, resulting in the scrapping of the drum drying bin and making it unusable. The dried material has dead corners, and the material is easy to form agglomerates, which affects the uneven drying moisture of the material, and the dried material cannot be cooled. Contents of the inventio...

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Problems solved by technology

[0002] Now on the market, there are drying equipment for materials such as grain, chemical products, coal, stones, sand, mineral products, pasture, crops, and local specialties. The heating of materials drying on the market is to dissipate heat through metal pipes placed in parallel. Or the secondary heat exchange through the heat exchanger outside the drying equipment is hot air, the heat exchange efficiency of heat energy is low, and the heat energy required for drying will increase a lot

The heat exchange tube in the drum drying chamber leaks and is not easy to repair, resulting in the scrapping of the drum drying chamber and making it unusable

The dried material has dead corners, and the material is easy to form agglomerates, which affects the uneven drying moisture of the material, and the dried material cannot be cooled.

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