Rear-inlet-air grain drying center system

Abstract

The invention discloses a rear-inlet-air grain drying center system. The system comprises a wet granary, a drying room, a transition room and an ash room which are successively arranged in sequence. Adryer is arranged in the drying room, a heat pump hot air furnace is arranged in the transition room, an hot air opening of the heat pump hot air furnace is communicated with the dryer through an air-energy blast pipe, a dust exhaust pipe communicated with the ash room is connected to the air-energy blast pipe in a grafting mode, a spiral dust removal grid is arranged on the top of the ash room,an axial direction of the spiral dust removal grid is in the vertical direction, and the spiral dust removal grid is filled with activated carbon; the dust exhaust pipe is located below the spiral dust removal grid, the top of the ash room is communicated with the top of the transition room, and an air adding opening is formed in the side wall of the ash room. The rear-inlet-air grain drying center system has the advantages of an excellent dust removal capability and a great waste heat recovery capability.

Description

technical field [0001] The invention relates to the field of grain drying, in particular to a central system for grain drying with rear air intake. Background technique [0002] During the storage of grain, there is often a phenomenon of returning to moisture. Once the moisture content in the grain exceeds 12-13%, fermentation or germination will often occur, which will cause irreversible losses to the grain. Therefore, in the process of grain storage The grain will be dried and dehumidified regularly. [0003] The existing grain drying methods mainly include electric drying, hot air drying, etc. No matter which drying method is used, it will often cause the problem of dust flying during the grain drying process, and at the same time, there will be residual gas discharged from the drying structure. There is more energy, and then there is a defect of greater energy waste. Contents of the invention [0004] The purpose of the present invention is to provide a rear-inlet gr...

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Problems solved by technology

[0003] The existing grain drying methods mainly include electric drying, hot air drying, etc. No matter which drying method is used, it will often cause the problem of dust flying during the grain drying process, and at the same time, there will be residual gas discharged from the drying structure. More energy, which leads to the defect of greater energy waste

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