A Control Method for Concealed Air Duct Grain Drying Bin

Abstract

The invention discloses a grain drying bin with hidden air ducts. The grain drying bin comprises a bin body, a hot-blast stove, and an induced draft fan, wherein the bin body comprises two inlet and outlet air ducts, and is used for accommodating to-be-dried grain; the hot-blast stove is connected to one side of the bin body through one inlet and outlet air duct, and is used for introducing a hot blast into the drying bin; the induced draft fan is connected to the other side of the bin body through the other inlet and outlet air duct, and is used for pumping out the hot blast in the bin body; the bin body is of an interlayer structure, a horizontal main air duct and vertical hidden air ducts, the horizontal main air duct is connected with the two inlet and outlet air ducts, and the plurality of vertical hidden air ducts are evenly distributed in an interlayer of two side surfaces of the bin body; the upper ends of the vertical hidden air ducts are sealed, and the lower ends of the vertical hidden air ducts are communicated with the horizontal main air duct; vent holes are evenly distributed in the side, close to the grain, of each vertical hidden air duct, and are used for introducing a hot blast into the grain. The grain drying bin with the hidden air ducts realizes the combination of drying and storage, reduces the cost for transportation, and has the advantage of reducing middle loss.

Description

technical field [0001] The invention relates to the technical fields of agricultural machinery engineering, agricultural product processing and storage engineering, and grain and oil storage engineering. More specifically, the present invention relates to a concealed air duct grain drying bin and a control method thereof. Background technique [0002] In the field of agricultural production, grain storage is an important link. If it is not kept properly, the grain will suffer from mildew, insect damage, rodent damage, and food quality decline, which will cause major economic losses to grain and agriculture, and food security is a national strategy. , so the links of grain storage, drying, and storage are attached great importance from farmers to the country. In the past, farmers stored grain, which was simply packed in sacks and placed in the house, and some were placed in the cellar. Drying and ventilation could not be guaranteed. Every year, grains were mildewed and rats ...

AI Technical Summary

Problems solved by technology

In the past, farmers stored grain, which was simply packed in sacks and placed in the house, and some were placed in the cellar. Drying and ventilation could not be guaranteed. Every year, grains were mildewed and rats caused huge losses. Building simple warehouses, commonly known as corn houses, is made of wood and can be ventilated by natural wind, which partially solves the problems of precipitation and mildew, but the problems of mildew and rodents still exist, food loss is still serious, and fire prevention problems also more serious

At present, the country is promoting the scientific grain storage warehouse for farmers. This warehouse basically solves the problems of natural grain drying, mildew and rodent infestation. It is well received by farmers and improves the economic benefits of grain agriculture, but it cannot guarantee national food security. First, due to the influence of the price of scientific granary storage, it has not been developed among all the current farmers. The vast majority of farmers still store grain in the old fashion, and even the grain is directly lying on the ground. The capacity of scientific granary storage is limited, and the storage capacity of a warehouse is only It is enough for a single farmer, and even a single farmer can’t hold the grain

Second, the grain storage of individual farmers is basically the grain produced by themselves, and the scale is small, which is not conducive to the national macro-control

The grain storage methods of these grain depots used to be mostly round grain piers, which are relatively simple and easy to cause fires, and mildew and rodent damage are also serious.

Later, brick walls and wooden trusses were used to hang tile roof warehouses, which partially solved the problems of fire, mildew, and rodent damage. However, due to their own characteristics, brick walls and wooden trusses are not easy to withstand the lateral pressure of grain. Considering the limited height of bulk grain economically, and because the span of wooden trusses cannot be too large, the capacity of a single warehouse is limited from these two aspects, and the problem of fire prevention in storage warehouses has not been completely solved due to the influence of wooden trusses.

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