Vertical roller mill and method of use thereof
US4485974A · kind A · utility
18Cited by
4References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 15, 1981 |
| Grant date | Dec 4, 1984 |
| Priority date | — |
| Expiry date | Dec 15, 2001 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C15/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a vertical roller mill including a grinding roller which is urged against a grinding path on a grinding table by a hydraulic cylinder. The loading on the roller is measured by a transducer and the acceleration of the roller by an accelerometer. Resulting signals are combined at a controller which controls a valve through which hydraulic fluid is supplied to the hydraulic cylinder, so that the loading is compensated for the influence of the instantaneous velocity and acceleration of the roller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.