Nut material shelling technology application (1)
1 nut agricultural material shelling method
Nuts mainly refer to fruits with a hard outer shell. The most representative nuts produced in China are dried shell lotus seeds, walnuts, almonds, ginkgo and pine nuts. In the process of deep processing, shelling is a key process.
Because the nut husk is mainly composed of cellulose and hemicellulose, the gap between the shell and the shell is small, the shell is hard, it is difficult to peel off, and the nut variety is complicated, the size difference is large, and the shape is irregular; the shelling can not destroy the quality of the nut, The physical shelling method has different degrees of damage to the quality of the nuts, so it is more difficult to break the shells of the nuts. Nut sheller.
1.1 Mechanical shelling method
Most of the equipment currently developed is using microwave drying machinery to shell. Common mechanical shelling methods are as follows:
(1) Shelling by impact method: The shelling method by impact method is that the material grain is suddenly blocked and impacted when moving at high speed, and the shell is broken to achieve shelling. The material is rotated by a high-speed rotary tray to cause a large centrifugal force to hit the wall. As long as the impact force is large enough, the grain shell will be deformed to form a crack.
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