Analysis of Corn Moisture Conditioning

Corn Moisture adjustment is to use water or steam to moisten the corn kernels to provide the best process adjustment for corn peeling and corn germination as one of important of corn processing steps. Corn moisture adjustment is a necessary process to obtain corn germ.

Maize Moisture adjustment is mainly to adjust the moisture of the corn cortex and corn germ to increase the moisture of the corn skin and corn germ. At the same time, it will also control the penetration of water into the endosperm, soften the cortex and embryo, enhance the toughness of the cortex, reduce the binding force between the cortex and the endosperm, expand the embryo body and increase the elasticity, so as to reduce the endosperm during corn peeling and degerming damage. Improve the efficiency of peeling and embryo removal. Moisture regulation includes two processes: watering and moistening corn.

When corn moisture is 20%, the efficiency of peeling and degerming is the highest, but the moisture of the finished product is high. The more suitable processing moisture is 16-17%. When the moisture does not match, the water vapor should be adjusted. When the moisture content of corn is high (> 18%), it can be peeled directly after cleaning without going through the water vapor adjustment process.

Water temperature is the main factor affecting the water absorption of corn kernels and embryos. Different water vapor adjustment methods are adopted when the temperature is different. When the water temperature is above 20 degrees, only water conditions are used instead of steam adjustment, which can save energy; when the water temperature is relatively low, both water and steam adjustment can be used. When the water is in, add steam to increase the temperature and water temperature of the corn, so that the water can penetrate into the corn cortex and endosperm more quickly maize degerminator machine .

The corn after entering the water enters the silo to moisten the corn, so that the water can penetrate into the corn cortex and endosperm evenly. The endosperm swells after absorbing water, enhancing toughness and elasticity . However, if the moisturizing time is too long, the water will penetrate into the endosperm. The moisture difference between the skin and the endosperm is too large, or the moisture of the skin is lower than the moisture of the endosperm, which will cause peeling. The body swelling is small, the endosperm is easily damaged during processing, and the efficiency of degerming is significantly reduced. Run the corn for 8-10 minutes. Hard corn needs a little longer.

The same time to run corn, the higher the water temperature, the greater the water absorption; when the water temperature is the same, the water absorption increases with time.

maize degermination process is very important for an advanced big morden maize mill. Normally we adopt kinds of maize water Dampener machine,which is a key machine before maize peeling machine for the conditioning.