Black Spots Appear During Granulation? -Twin-screw Granulator, Worry-free After Sale [kelongweier]

In the process of granulation production of twin-screw granulator, why do we encounter black spots and broken bars? I think many friends are more annoying when they encounter this problem. This will affect our production schedule. Second, more raw materials are wasted, and time and energy are spent in vain. It's not worth it, let's analyze it with you below!

In fact, the reasons for the black spots are mainly due to the following reasons. Either the mouth is not cleaned properly, the discharge port is not smooth enough, and the accumulated materials will be gradually carbonized for a long time, which will cause black spots, and then the quality of the raw materials themselves. Poor, there are too many black spots, the screw is partially overheated or the shear is too strong, resulting in aggravated material carbonization. Of course, if the head pressure is too high, there will be too much return material, and the carbonization will increase, which will also lead to. Of course, if some threaded components are damaged, the carbonization of the material at the four corners will increase, which is also one of the reasons for this.

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