Hot air drying machine with cooling section

Abstract

The invention relates to a hot air drying machine with a cooling section. The hot air drying machine consists of a drying bin, a vacuum material inlet and outlet device, brackets, a heating device, a driving device, an air ventilation pipeline, a fan and a rail, wherein the drying bin is provided with the cooling section; the brackets are used for supporting a material inlet and a material outlet at the two ends of an inner bin; the vacuum material inlet and outlet device is arranged at the material inlet and the material outlet at the two ends of the inner bin; a conveying pipeline is fixedly connected with the air ventilation pipeline; the driving device is used for driving the trail on the drying bin with the cooling section; the heating device is used for directly heating an outer casing of the drying bin with the cooling section. The hot air drying machine has the advantages that in the material drying process, the drying bin with the cooling section is driven by the driving device to rotate, spiral heat radiating vertical pipes are used for stirring and pushing, the drying of a material has no dead space, the easiness in caking of the material in the drying section of the inner bin in the drying process is avoided, the drying time of the material is shortened, the drying quality of the material is uniform, the dried material can be cooled in the cooling section, the drying efficiency of the material is improved, the drying effect of the material is optimized, and the greening, drying, energy-saving and environment-friendly effects are realized.

Description

technical field [0001] The invention relates to a dryer, in particular to a hot air dryer with a cooling section. 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 heat exchange outside the drying equipment is hot air, the heat exchange efficiency of heat energy is low, and the heat energy required for drying increases a lot. The dried materials have dead angles, and the materials are easy to form agglomerates, which affects the uneven drying moisture of the materials. The dried material is also not cooled. [0003] The patent I applied for has a drying chamber with a cooling section, which is composed of an outer shell, an inner chamber, a heat-conducting working fluid and a safety valve. There are 2-3 safety va...

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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 heat exchange outside the drying equipment is hot air, the heat exchange efficiency of heat energy is low, and the heat energy required for drying increases a lot. The dried materials have dead angles, and the materials are easy to form agglomerates, which affects the uneven drying moisture of the materials. Dried materials are not cooled

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