Roller press grinding plant
US6457659B1 · kind B1 · utility
5Cited by
1References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 24, 2000 |
| Grant date | Oct 1, 2002 |
| Priority date | — |
| Expiry date | Jul 24, 2020 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C23/14
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A grinding plant comprising: a high-pressure roller press for crushing raw material into fragments; a static cascade sifter for shifting the fragments from the high-pressure roller press into fine fragments and coarse fragments, the coarse fragments being returned to the high-pressure roller press; and a separator for separating the fine fragments from the static cascade sifter into fine product fragments and less fine reject fragments, at least some of the less fine reject fragments being returned to the static cascade sifter without first pasing through the high-pressure roller press.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.