Heat pipe type impinging stream grain dryer

Abstract

The invention relates to a heat pipe type impinging stream grain dryer. The heat pipe type impinging stream grain dryer comprises a feed port, a discharge port, sliding ways, an air cavity, a heat pipe heat exchanger, air ducts and draught fans. Each sliding way comprises an internal sliding way cavity and a small hole array at the upper portion of the sliding way cavity. The sliding way cavities are communicated with the air cavity. The air cavity is communicated with the air ducts. Inlets of the air ducts are provided with the draught fans. After to-be-dried grains enter the dryer through the feed port, the grains fall into the sliding ways, slide downwards along the sliding ways, and are discharged from the discharge port; and in the downward sliding process, the heat pipe heat exchanger transfers heat to air in the air ducts, and the heated air is fed into the air cavity through the draught fans, enters the sliding way cavities, and flows out from the small hole arrays at the upper portions of the sliding way cavities to dry the grains. The novel impinging stream drying principle is adopted in the dryer, hot air flows upwards, the grains flow downwards, impinging streams are formed to generate the optimal drying effect on the grains, a temperature field is more uniform and more efficient, mechanical parts are omitted, the structure of the dryer is more compact, and energy consumption is greatly reduced.

Description

technical field [0001] The invention relates to a heat pipe type collision flow grain dryer, which belongs to the technical field of energy-saving equipment and grain drying. Background technique [0002] In order to prevent spoilage, corn, rice, wheat, soybeans and other grains need to be stored after being dried. Existing drying equipment has horizontal drum type, tower type and so on. These dryers all have the disadvantages of large volume, high material consumption, large power consumption, and the need for lifting equipment to carry them. [0003] The existing drum dryer in the market is composed of a large inner cylinder and an outer cylinder (dimensions 9750×2950×2760mm). The inner cylinder is fixed and the outer cylinder rotates; , to push the incoming grain forward, the grain is dropped on the top of the drum, and then through the side wind, the grain is dried and then exits the drum. It can be seen that there are many defects in this kind of dryer, for example, ...

AI Technical Summary

Problems solved by technology

It can be seen that there are many defects in this kind of dryer, for example, the equipment is large (5860kg) and needs to be transported by lifting machinery, the drum needs a motor to drive the rotation, the temperature and humidity of the wind field along the drum are uneven, and the steel consumption Large, large energy consumption (67kW) and other issues

[0004] Compared with the drum type dryer, the existing tower type dry dryer in the market is a larger equipment and adopts a tower type structure, which also has problems such as large volume, uneven temperature field, large material consumption, and large energy consumption.

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