Systems and methods for reducing the particle size of a pozzolan
US8152080B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 30, 2010 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Aug 11, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC04B28/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
Methods for comminuting the pozzolanic material include (i) providing a comminuting apparatus including a rotatable drum and an agitation medium positioned within the rotatable drum and configured to slidably move along the interior surface of the drum when the drum is rotated (ii) introducing a pozzolanic material into the comminuting apparatus and operating the comminuting apparatus so as to create a static charge on the agitation medium; and (iii) comminuting the pozzolanic material in the comminuting apparatus by rotating the rotatable drum without causing the media to crush the pozzolanic material so as to yield a reduced-size pozzolanic material comprising a majority of particles having a substantially globular shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.