Alternately heating solar straw bale drying device

Abstract

The invention relates to an alternately heating solar straw bale drying device. One side of a plate-type heat collector is communicated with outside air, and the other side of the plate-type heat collector is connected with a fan through an air pipe and an automatic control valve. A water pipe on the right side of an evacuated tube collector passes through a heat storage cement block through a water pump in a snaking mode and then is communicated with the left side of the evacuated tube collector through the water pipe. The straw bales to be dried are put in the straw bale drying device. The lower part of the straw bale drying device is provided with an air duct communicated with the fan. The heat storage cement block is arranged underground a straw storehouse. A snakelike air duct passes through the inside of the heat storage cement block. The right side of the heat storage cement block is communicated with the outside air, and the left side of the heat storage cement block is connected with the automatic control valve through the air duct. The automatic control valve can automatically switch to be respectively communicated with the fan under the control of a temperature sensor arranged on the inner wall of the plate-type heat collector. When the plate-type heat collector collects solar heat to use the hot air to dry the straw bales in the daytime, the evacuated tube collector also receives the solar heat and heats the underground heat storage cement block. At night, the straw bales are dried by the hot air through the snakelike air duct.

Description

Technical field [0001] The invention relates to alternate heating type solar bale drying equipment, which belongs to the field of forage processing machinery. This equipment uses solar energy as the energy source. It can bundle the high-quality forage such as alfalfa that has been preliminarily dried after harvesting for convenient transportation, and then put it into the bale drying equipment for continuous drying day and night into high-quality hay bales. Background technique [0002] In the processing of forage grass, the method of artificial rapid drying is usually used to dry the forage grass to preserve its effective nutrients and prevent the forage grass from becoming moldy during long-term storage. At present, natural drying is mainly used in China. Because the time required for drying is too long, the effective nutrients of forage grass are seriously lost. The solar-powered forage drying equipment adopted in foreign countries such as Europe, Japan, and the United S...

AI Technical Summary

Problems solved by technology

The biggest problem with this kind of solar forage drying equipment is that it can only dry loose grass during the day, which requires a long drying time and the loss of effective nutrients in forage grass

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