Method and device for producing and treating pellets

摘要

The invention relates to a method and a device for producing and treating plastic pellets. According to said method, a melt of the plastic material is granulated to give pellets, the pellets are cooled in a cooling fluid, the pellets are separated from the cooling fluid and the pellets are crystallized. The device according to the invention is characterized by comprising a control unit which monitors the crystallization step and controls the method in such a manner that, in case of a disturbance of crystallization, the pellets are supplied to an intermediate storage alter separation of the pellets from the cooling fluid and, as soon as the disturbance is removed, the pellets temporarily stored in the intermediate storage are supplied to crystallization and are crystallized.

主权项

1. A method for producing and treating pellets made of a plastic material, comprising:
granulating a melt of the plastic material to form pellets; cooling the pellets in a cooling fluid; separating the pellets from the cooling fluid; and crystallizing the pellets in a crystallization device; wherein a control unit monitors at least the crystallizing of the pellets and controls the method in such a manner that, in case of a disturbance in crystallization of the pellets, the pellets are supplied, via a diverting device situated between a separating device for separating the pellets from the cooling fluid and said crystallization device for crystallizing the pellets and connected with an intermediate storage, to said intermediate storage after separation of the pellets from the cooling fluid, and temporarily stored in the intermediate storage and, once the disturbance has been removed, the pellets temporarily stored in the intermediate storage are supplied to said crystallization device and are crystallized.