Rotating guide tube spouted-bed grain dryer for removing resistance, adjusting distance and filling air

Abstract

The invention relates to the novel spouted-bed grain drying equipment field, mainly used for grain drying. In the invention, a spouted-bed structure for removing resistance, namely, removing resistance and flexibly adjusting guide jet distance, namely, adjusting distance is adopted, an air filling structure of grain in annular space region of the spouted-bed grain is independently designed, a diameter amplification structure of the rotating guide tube spouted-bed is blended, and a batch-type grain spouted-bed drying machine with new drying characteristics and operational capacity is provided. With respect to the existing spouted bed drying equipment, the whole device expresses integral comprehensive innovation, has the advantages of new drying performance, operational performance and amplifying power. The device of the invention is suitable for batch-type drying of barley, wheat, rice, soybean and corn.

Description

technical field [0001] The invention relates to the field of grain drying equipment, which is mainly used for drying bulk grain barley, wheat, rice, soybean and corn. In particular, it refers to a batch-operated new spouted bed drying device that has the beneficial effects of deblocking start, nozzle guide tube distance, that is, adjustable spray guide distance, independent and sufficient air supply in the annulus area, and rotating guide tube mobile spraying. Background technique [0002] The spouted bed is a branch of the fluidized bed, which has the advantages of simple structure, less gas consumption than the fluidized bed, and easy operation. Since the spouted bed was proposed by Mathur and Gisher of the Canadian National Research Institute in the early 1950s, it has been tested or applied in grain drying, pyrolysis of granular waste, coal combustion and gasification. [0003] The conventional spouted bed is a device with a cylindrical outer wall on the upper part and ...

AI Technical Summary

Problems solved by technology

However, it is difficult to independently control the supplementary air to the annular gap through the guide pipe to supplement the air and spraying, and the gas used for spraying in the rotating guide tube will also be reduced due to the supplementary air to the annular gap, and even cannot reach the grain. Gas velocity requirements for jetting

After the production equipment is enlarged, the amount of supplementary air in the annular gap is larger, and it is difficult to meet the requirement of sufficient supplementary air in the annular gap only through the guide pipe to separate part of the gas supply.

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