Roller mill
US6113015A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 22, 1997 |
| Grant date | Sep 5, 2000 |
| Priority date | — |
| Expiry date | Jul 22, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C15/00
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention relates to a roller mill with a rotary grinding bowl, grinding rollers rolling thereon and retaining devices for influencing the grinding material movement between the grinding rollers. For increasing the throughput of a low-cost roller mill, low-cost, effective retaining devices are provided between the grinding rollers and are in each case constructed as a rotary damming wall formed from one or more damming rolls. The damming rolls have damming faces, which block the outwardly moved grinding material and retain same for further grinding. In a first embodiment a damming face is constructed on the inner end face of a damming roll. According to a further development radially projecting damming rings with additional damming faces are fitted.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.