Method and apparatus for disposing of waste dust generated in the manufacture of cement clinker
US6109913A · kind A · utility
10Cited by
16References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 20, 1999 |
| Grant date | Aug 29, 2000 |
| Priority date | — |
| Expiry date | Oct 20, 2019 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27B7/20
- 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.