Large-output low-temperature circulating grain drying equipment

Abstract

The invention provides large-output low-temperature circulating grain drying equipment. The drying equipment comprises a lower rack, wherein a drying machine body is installed at the upper part of the lower rack; a retention section is arranged at the upper part of the drying machine body, a drying retention section is arranged at the middle part of the drying machine body, and a grain discharge section is arranged at the lower part of the drying machine body; a hot air passage and an exhaust air passage are arranged on the two sides in the drying machine body respectively; an elevator is installed inside the exhaust air passage and runs through the whole exhaust air passage; an elevator head is installed at the top of the exhaust air passage; an elevator tail is installed at the bottom of the exhaust air passage; the bottom of the drying machine body is connected with a discharge circulating device; an air feeder communicated with the exhaust air passage is also installed outside the exhaust air passage; an air separation device is also installed at the elevator head; a uniform shedding device is connected at the outlet of the air separation device and is arranged at the top of the drying machine body; air inlet vent pipes and air exhaust vent pipes are arranged in the drying retention section of the drying machine body and are alternately arranged up and down at intervals; a control cabinet is installed at the lower part of the lower rack. The drying equipment has high work efficiency.

Description

technical field [0001] The invention relates to the technical field of grain drying, in particular to a high-yield low-temperature circulation grain drying equipment. Background technique [0002] When drying grain, not only a high drying rate is required, but also high quality is required. The circulation dryer generally adopts the drying-slow drying process. First, the grain is stored for a period of time to evaporate part of the water, and then the grain is kept warm for a period of time. time, so that the moisture inside the grain diffuses to the surface, reducing the moisture gradient inside the grain, and then enters the next drying process. This process can improve grain quality and reduce energy consumption, but adding a slow recovery process in the drying process will inevitably reduce the productivity of the dryer. [0003] The Japanese circulation grain dryer is equipped with a slowing section inside, and the ratio of the slowing section time to the drying time i...

AI Technical Summary

Problems solved by technology

Therefore, on the premise of a fixed output, the slow-su section occupies a large proportion of the whole machine. Since the body cannot be increased or expanded indefinitely, the development of large-capacity circular grain dryers has been limited for a long time.

[0004] The large-capacity grain drying equipment in the prior art occupies a large area and has low working efficiency

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