Multipurpose grain storage machine capable of adjusting grain storage environment

Abstract

The multipurpose grain storage machine capable of adjusting the grain storage environment comprises a grain storage machine body, a cavity is formed in the grain storage machine, a whole bin air supply outlet is formed in the bottom of the cavity, a fresh air opening and a refrigerating system are arranged on the side face of the cavity, and a surface layer air supply outlet, an air return opening and an air exhaust opening are formed in the upper end of the cavity; a surface layer air supply valve, an air return valve, a fresh air valve and an air exhaust valve are arranged on the air supply opening, the air return opening, the fresh air opening and the air exhaust opening respectively, and the surface layer air supply valve, the air return valve, the air exhaust valve, the fresh air valve and the refrigerating system are all electrically connected with a controller in the electric cabinet. The temperature, humidity and gas components of a grain storage environment can be adjusted, and various ventilation functions of whole warehouse cooling, surface layer temperature and humidity control, rainfall ventilation, water retention ventilation, constant-temperature and constant-humidity air supply and the like in the grain low-temperature storage process are achieved; and cooling and ventilation in the grain feeding stage, grain pile warehouse arrangement and surface temperature and humidity control in the low-temperature storage stage, gas component adjustment in the grain storage stage and warehouse-out tempering are achieved.

Description

technical field [0001] The invention relates to the technical field of grain storage, in particular to a multipurpose grain storage machine for adjusting the grain storage environment. Background technique [0002] Low-temperature grain storage technology has gradually become one of the main methods of grain storage. Usually, after the grain is put into the warehouse, a high-power grain cooler or a natural low-temperature cold source is used to cool the whole warehouse, and the whole warehouse is lowered to a low temperature state. When the temperature rises, air conditioners or surface temperature control units are used to maintain the surface space of grain piles at low or quasi-low temperatures. When grains are put into warehouses under relatively high climate conditions, there are data showing that in the short period of time before the grains are put into the warehouses until the initial cooling, due to the high temperature of the grains themselves, they cannot be venti...

AI Technical Summary

Problems solved by technology

Due to the single function of the whole warehouse and the surface equipment, and the lack of water retention and humidity control functions, the surface space and the interior of the grain pile cannot be ventilated at the same time, and there is still a part of moisture loss in the grain during long-term low-temperature storage.

For grains that have just entered the warehouse, sterilization treatment is often required, and grains that enter the storage stage need to be post-ripened. It is necessary to maintain good fresh air conditions to maintain the grain’s own breathing, and the oxygen concentration required for grain breathing during the entire low-temperature storage phase. Long-term airtight ventilation will reduce the temperature. The oxygen concentration in the warehouse is reduced, which affects the respiration of the grain and leads to the deterioration of the quality of the grain

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