Method and apparatus for disposing of waste dust generated in the manufacture of cement clinker
US6322355A · kind A · utility
3Cited by
3References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 1, 2000 |
| Grant date | Nov 27, 2001 |
| Priority date | — |
| Expiry date | Jun 1, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P40/10
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A method of disposing of undesirable chemical compounds in waste dust generated in a first kiln in the manufacture of cement clinker by using the dust and slag as the feedstock material to a second kiln, heating the feedstock material in an oxidizing atmosphere, and raising the heat sufficient to diffuse the waste dust and the slag to form a hydraulic product such as cement clinker and lime but insufficient to volatilize previously precipitated chemical compounds in the feedstock material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.