Air distribution structure of low-temperature rotational-flow rotary-disc material drying machine

Abstract

The invention discloses an air distribution structure of a low-temperature rotational-flow rotary-disc material drying machine. The air distribution structure of the low-temperature rotational-flow rotary-disc material drying machine comprises a drying chamber and a heat pump; large material discs and small material discs are disposed in a staggered mode along a center shaft in the drying chamber;and the large material discs and the small material discs rotate synchronously with the center shaft. The air distribution structure of the low-temperature rotational-flow rotary-disc material dryingmachine is characterized in that air distribution rings are disposed in the positions, corresponding to the upper portions of the large material discs and the small material discs, on the inner wallof the drying chamber correspondingly; the air distribution rings communicate with an air outlet of the heat pump; air distribution mechanisms are disposed on the air distribution rings; and downwardair distribution openings are formed in the air distribution mechanisms. Hot air directly blows wet materials through air distribution pipes by means of the air distribution rings in the drying chamber, and accurate demand control over the hot air quantity and hot air speed can be performed according to the humidity; and the hot air and the wet materials of the certain layers are subjected to heatexchange, and then the hot air enters the positions between the large material discs and the small material discs of the next groups from through holes of the large material discs or gaps between thesmall material discs and the side wall of the drying chamber.

Description

technical field [0001] The invention relates to the field of low-temperature drying of materials, in particular to an air distribution structure of a low-temperature swirling turntable material drying machine. Background technique [0002] At present, there are more and more scenarios that require hot air drying in the market, such as tobacco drying, grain drying, medicinal material drying, fruit and vegetable drying and other processing processes, and the reduction and harmless treatment of sludge and other wastes. . The material dryer is the main equipment for drying operations, and the hot air circulation system in the dryer is the key to improving drying efficiency, saving energy and ensuring product quality. [0003] Among the existing drying technologies, the low-temperature drying method is often used at this stage. The "box-type mesh belt machine" is generally used for low-temperature drying, which mainly adopts the method of overall air distribution or uniform air ...

AI Technical Summary

Problems solved by technology

[0004] 1. Low production efficiency: Since the materials in the drying room are laid flat on the mesh belt, the hot air can only dry the surface of the materials. In order to ensure the drying effect, it is necessary to wait for the moisture inside the materials to migrate to the surface. The process is slow, which leads to the production of the drying process. Extended cycle times reduce productivity and negatively impact drying quality and cost

[0005] 2. Large energy consumption: the direction of the hot air in the drying chamber is single and fixed, which is not conducive to the full contact with the hot air on the surface of the material to distribute moisture, the drying effect is poor, and the heat utilization rate is low. In order to ensure the drying effect, the hot air volume needs to be increased, resulting in high energy consumption

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