Method for milling raw materials
US6685117B2 · kind B2 · utility
5Cited by
8References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 15, 2001 |
| Grant date | Feb 3, 2004 |
| Priority date | — |
| Expiry date | Jan 31, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/10
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
In a mill drying plant with a roller grinding mill and preferably in a cement production plant operated in compound with a clinker burning process and having a kiln fan and a fan downstream of a filter, a mill fan is connected upstream of the roller grinding mill as a further fan. This makes it possible to overcome the resistance of the roller grinding mill blade ring and to force the pressure zero point into the roller grinding mill, so that there is a low vacuum above the blade ring in the milling and classifying chamber and in the filter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.