Systems and methods for reducing the particle size of a pozzolan
US7975940B2 · kind B2 · utility
1Cited by
17References
27Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 31, 2009 |
| Grant date | Jul 12, 2011 |
| Priority date | — |
| Expiry date | Jan 6, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B20/026
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A system for reducing the particle size of a pozzolan includes a thermal fracture system and a defracturing apparatus. The system is highly efficient at drying and heating a natural pozzolan having a natural distribution of particle sizes. The system can create a reduced-size pozzolanic material with a desired particle size and particle morphology. The system for reducing the particle size of a pozzolan includes a thermal fracture system for heating and thermally fracturing the pozzolan and a defracturing apparatus that agitates the thermally fractured pozzolan to break the thermally fractured pozzolan apart.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.