Method and device for producing and treating pellets
US8435023B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Nov 12, 2007 |
| Grant date | May 7, 2013 |
| Priority date | — |
| Expiry date | Jan 2, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29B2009/165
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
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 after 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.