Uniform-heat energy-saving type grain dryer

Abstract

The invention discloses a uniform-heat energy-saving type grain dryer. The dryer comprises a dryer box body, wherein a feeding bin is communicated with an upper part of the dryer box body, a discharging barrel communicated with the feeding bin is mounted at the top in the dryer box body, a heating base is fixedly mounted at a lower part in the discharging barrel, a plurality of channels are evenlyformed in the heating base and located on the periphery of a semicircular protruding part, a device cavity is formed in the middle of the interior of the heating base, a heating pipe is installed inthe device cavity, a spiral conveying rod is movably inserted into the channel, an air draft end of a draught fan is communicated with an air inducing pipe, the other end of the air inducing pipe is communicated with the discharging barrel, and the other end of the air outlet pipe is communicated with the air cavity. The dryer is advantaged in that the heating base is heated through the heating pipe, grains in the channels can be evenly heated and dried, the hot air generated in the heating process is exhausted into the drying box through the draught fan to be dried and then enters the air cavity, the grains can be dried again, the drying effect is improved, and heat waste is avoided.

Description

technical field [0001] The invention relates to the technical field of grain processing, and more specifically relates to a uniform heat and energy-saving grain dryer. Background technique [0002] my country is a big agricultural country. In the main grain producing areas, due to the large overall output, the drying sites are far from meeting the demand, which will lead to nowhere for the harvested grain to be dried, and the moisture content in the grain depot will exceed the safe moisture content. The temperature and humidity in the environment where the grain is located is suitable for the growth of microorganisms, and mildew will occur, especially in cloudy and rainy days during the grain purchase period; However, due to the natural return of moisture, the grain stored in the warehouse also needs to be dried regularly to ensure that the grain does not go moldy. Therefore, the drying treatment of grain becomes very important. [0003] In recent years, people have used gra...

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Problems solved by technology

[0003] In recent years, people have used grain drying towers to dehydrate grain. The disadvantage is that the heat loss during the drying process is large, which wastes energy and causes environmental pollution. In addition, the grain in the drying tower is heated unevenly, resulting in different degrees of grain drying. , leading to a decline in food quality

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