Positive-negative pressure ventilation drying cylindrical silo and drying method

Abstract

The invention relates to a positive-negative pressure ventilation drying cylindrical silo. Currently, a dryer is widely used for drying. However, according to the drying method of the dryer, the energy consumption is large, cost is high, the mechanical damage to rice after drying is large, the breaking rate is increased, the quality is poor, the head rice rate is reduced, the taste is poor, and the processing quality and the edible quality of rice are effectively influenced. A main body silo and a matched applicable device which are capable of drying a grain layer through the natural wind and the low temperature in a ventilating mode are designed to solve the problems. The positive-negative pressure ventilation drying cylindrical silo comprises a silo ceiling (1), a silo body (2) connected with the silo ceiling (1), a base (3) connected with the silo body, externally looped ventilation cages (4) fixed on the inner wall of the cylindrical silo, a central ventilation cage (5) installed in the cylindrical silo, wherein the external annular ventilation cages are evenly distributed in an annular shape. The ventilation cages comprise the externally looped ventilation cages and the central ventilation cage, wherein the externally looped ventilation cages and the central ventilation cage are respectively connected with a fan (6). A positive-pressure drying mode or a negative-pressure drying mode is used for achieving mechanical ventilation drying of grain.

Description

technical field [0001] The invention relates to a positive and negative pressure ventilation drying silo, which realizes mechanical ventilation and drying of grain by using positive pressure drying or negative pressure drying. Background technique [0002] Grain drying is an important part of the grain storage process. Only by reducing high-moisture grains to safe moisture can they be stored for a long time. At present, drying with a dryer is widely used. However, its drying energy consumption is high, the cost is high, the mechanical damage of rice after drying is large, the rate of breakage increases, the quality deteriorates, the rate of whole rice decreases, and the taste is poor, which seriously affects the quality of rice processing and eating. Aiming at the current situation, we have specially developed a kind of main warehouse type and matching suitable equipment that use natural wind and low temperature to ventilate and dry the warehouse in the grain layer. Conte...

AI Technical Summary

Problems solved by technology

However, its drying energy consumption is high, the cost is high, the mechanical damage of rice after drying is large, the fracture rate increases, the quality deteriorates, the rate of whole rice decreases, and the taste is poor, which seriously affects the quality of rice processing and eating.

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