Different grain varieties can choose different corn dryer, mainly maize production areas, can choose multiple downstream high temperature dryer. Grain varieties, fewer or scattered food storage. Such as single variety, quantity is big, drying period is short, corn dryer should choose large continuous dryer is advisable. Different food has different drying technology and drying temperature, according to the drying period food quantity, also can choose different types of drying process and dryer.

Grain drying machine must attach importance to the development of energy saving and comprehensive utilization of energy, give full play to the energy characteristics of different regions, corn dryer used in a variety of joint heating mode, transplantation of heat pump and heat pipe technology, solar type corn dryer, etc.; The development of corn dryer automatic control technology, to ensure the implementation of the optimal operating conditions; As human's emphasis on environmental protection, environmental protection of corn dryer will be the future research direction.

In order to better promote the drying machine, it is necessary to develop multi-functional drying equipment, improve the utilization rate of corn dryer. Drying process in the whole corn dryer dry operating rate is changing, corn dryer drying medium conditions decide the drying rate of dryer, corn dryer drying process controlled by the surface evaporation rate, this stage is still has a uniform characteristics of corn dryer drying stage. Corn dryer under the dry condition changes of the dryer dry, also slow down corn dryer drying stage characteristics. To do the safety production and safety operation, so as to ensure the good and safe production efficiency of corn dryer.

Corn dryer adopts the design of the circulation of grain dryers, equivalent to half of each batch paddy drying time. With low hot air temperature (50 to 60 ℃) drying grain, the heating and tempering in the same within the body, with short heating time (about 8 minutes) and the longer the tempering time processing grain storehouse, tempering cycle heating until reach the required final moisture.

After hot blast stove indirect heating of air, corn dryer, under the action of a centrifugal fan was sent people dry hot air chamber, hot air from the hot air chamber for transverse cross dry BoGu layer, the hot air flow direction and the grain direction is crossed, hot air contact with grain to obtain more sufficient, heating, temperature, precipitation, grain dry valley floor closed from waste gas by the gas chamber. This cycle to achieve circulation dry until the grain moisture content conform to the required standard of warehouse. Maintained a certain temperature, due to the difference of grain surface and internal temperature and wet, promote grain internal water moves outward, gradually trend in balance, create conditions for the next cycle temperature, precipitation.

Corn dryer during the dry period, by eight Zhang Pinghang arrangement orifice plate will dry period is divided into two hot air chamber, four grains channel and three gas chamber. Hot air chamber and exhaust chamber for grain between channels. Grain, the grain is approved by the hopper hoist will host warehouse top grain mentioned, through stirring dragons on sending grain drying box until full. Corn drying tower when drying by the rows of bread institutions regularly, will continuously drying grain row to the stir at the bottom of the dragon, the stirring dragon send grain to hoist ascension first beat the dragon, again by stirring the dragon grains will be sent to people on slow Su Cang that slow Su Cang grains under the action of gravity, slowly moved from the top to the bottom of the four drying section, grain into the drying section of moment to moment for the second time in dry period of a cycle.

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