Grain drying equipment

Abstract

The invention discloses grain drying equipment. The equipment comprises a drying box and a net-type conveyor belt arranged in the drying box, wherein a vacuum generating device communicating with thedrying box is arranged on one side of the drying box; the vacuum generating device comprises a high-speed motor, a motor shaft, a primary vacuum pump, a secondary vacuum pump, a heat exchanger and a vacuum tank; the motor shaft penetrates the left side and the right side of the high-speed motor; and the primary vacuum pump and the secondary vacuum pump are respectively and cooperatively arranged on the left side and the right side of the motor shaft. The combination of vacuum drying and heating is adopted to enhance the moisture volatilization, and the moisture removal efficiency is greatly improved through repeated and cyclic work. The vacuum pumps are utilized to create a high-temperature environment, and high-temperature low-pressure evaporation efficiency is higher and more energy-saving than high-temperature normal-pressure evaporation. The vacuum pumps are adopted to replace a traditional coal-fired boiler and heat exchanger system, and from the basic ideas of energy conservationand emission reduction, the whole drying process operates efficiently and simultaneously has low energy consumption, zero emission and zero pollution, thereby meeting the national advocate of energyconservation and emission reduction.

Description

technical field [0001] The invention belongs to the technical field of drying equipment, and in particular relates to a grain drying equipment. Background technique [0002] my country is the world's largest grain producer and consumer, with an annual total grain output of about 610 million tons. According to statistics, the post-harvest grain loss caused by mildew is as high as 21 million tons each year, accounting for about 4.2% of the total grain output in the country. The development of grain drying is imminent. "Timely drying and safe warehousing" is the last key link in the mechanization of grain production after plowing and sowing. At the same time, grain drying is of great significance to national food security, agricultural production efficiency, agricultural product quality and farmers' income increase. [0003] Most of the current grain drying systems are composed of drying towers, small boilers, heat exchangers, induced draft fans and cooling fans. The high-tem...

AI Technical Summary

Problems solved by technology

The system not only occupies a large area, but also has low efficiency and large pollution

And the small coal-fired boiler drying system has a lot of auxiliary equipment and consumes a lot of power

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