Views: 278 Author: Site Editor Publish Time: 2023-04-18 Origin: Site
1.When the grain dryer is fast, the filling rate of the material in the dryer decreases and the air flow area increases. At this time, the negative pressure of the dryer tail should be increased, but at the same time, the negative pressure of the dryer head should also be increased. This situation not only shows that the resistance in the dryer does not become larger, but becomes smaller.
2.If considering the grain dryer speed causes the powder in the dryer to raise more, the ventilation resistance in the dryer increases, but this increase should be negligible.
3.The fast speed of grain dryer can improve the heat transfer efficiency, which is beneficial to reduce the temperature of the dryer tail, and the low temperature gas weight becomes larger, so that the negative pressure of the dryer tail becomes larger.
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