Method and apparatus for the heat treatment of fine-grained material
US3957521A · kind A · utility
4Cited by
4References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 23, 1974 |
| Grant date | May 18, 1976 |
| Priority date | — |
| Expiry date | Jan 23, 1994 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27B7/2033
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The heat treatment of fine-grained material such as ground raw cement comprises preheating the material, mixing the preheated material with fuel under conditions incapable of supporting combustion, subsequently combusting the fuel in intimate relation with the material, and finally firing the material in a rotary tube furnace.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.