Method of and plant for manufacturing pulverous or granular material
US4369067A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 10, 1980 |
| Grant date | Jan 18, 1983 |
| Priority date | — |
| Expiry date | Dec 10, 2000 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B7/43
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method is disclosed for manufacturing pulverous or granular material in a plant supplied with raw material, for example, cement raw meal, including a kiln for burning the raw material to be treated therein, a cooler coupled after the kiln for cooling the product treated in the kiln, a first preheater coupled before the kiln and heated with kiln exit gases, and a second preheater heated with spent cooling air. According to the preferred embodiment, the method comprises the steps of feeding all of the raw material to the second preheater, conveying all of the raw material preheated in the second preheater to the first preheater, and returning to the cooler for reuse therein, all of the cooling air cooled in the second preheater. A unique plant is disclosed for practicing the method of the invention. The method and plant promote fuel economy and eliminate or at least minimizes dedusting requirements in the manufacture of such pulverous or granular material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.