Quality-guaranteeing and energy-saving drying machine for grains

Abstract

The invention discloses a quality-guaranteeing and energy-saving drying machine for grains. The drying machine comprises two wet grain preheating bins, a hot grain cooling bin and a drying bin, wherein the two wet grain preheating bins are arranged on the left side and the right side of the hot grain cooling bin respectively and are spaced from the hot grain cooling bin through baffles; a ventilating net plate is arranged between the baffles; a cold air chamber is formed in the middle of the hot grain cooling bin; a cold air inlet is formed in the bottom end of the cold air chamber; wet grain outlets are formed in the bottom sides of the wet grain preheating bins; a dry grain outlet is formed in the bottom side of the hot grain cooling bin; a hot grain shifting wheel is arranged on the right side of the dry grain outlet; a dry grain helical collector is arranged on the bottom side of the dry grain shifting wheel; a dry grain helical conveyer is arranged on the bottom side of the dry grain helical collector; the drying bin is arranged on the right sides of the wet grain preheating bins; 2-30 groups of grain distribution channels are formed in the middle of the drying bin; ventilating net plates are arranged on the left and right sides of each grain distribution channel; a hopper type lifting machine is arranged on the left side of the drying bin. The drying machine is reasonable in structure, unique in design and good in using effect.

Description

technical field [0001] The invention relates to a grain drying equipment, in particular to a grain quality-preserving and energy-saving drying machine. Background technique [0002] At present, there are mainly three types of equipment used in grain drying in my country, one is the tower dryer commonly used in the north, the other is the low-temperature circulation dryer widely used in the south; the third is processed and transformed by the ore dryer tumble dryer. The hot air drying temperature of the tower dryer is 120-180 ℃. Due to the high drying temperature, the dried grain is partially burnt, protein and starch are denatured, and the internal quality is deteriorated. At the same time, the drying tower also directly discharges the hot air (temperature 20-70°C, humidity 20-80%) that still has drying capacity in the middle and lower ends, and the loss of energy consumption is about 35%, while the temperature zone of the dried grain is kept at 50°C Above, when cooling, th...

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Problems solved by technology

[0003] Therefore, there is a great demand for quality and energy-saving drying equipment. The purpose of the present invention is to provide an energy-saving and quality-guaranteed dryer for grain to solve the deterioration of grain quality and the waste of energy in the drying process of traditional dryers. , to ensure the nutritional quality of food and human health

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