Rock crushing apparatus
US9126203B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 20, 2011 |
| Grant date | Sep 8, 2015 |
| Priority date | — |
| Expiry date | Oct 22, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C13/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention relates to a rock crushing apparatus. Known apparatus operate on the distinct principles of compression crushing (compression between moving surfaces) or impact crushing (compression via high velocity rock impacting a surface). Both types of apparatus have disadvantages in the quality of the crushed product, energy inefficiency or high rotor wear rates. The apparatus (1) comprises a rotor (2) comprising a number of reciprocating (11) and fixed compression crushing elements (12, 13) to compression crush the rock between adjacent reciprocating and fixed surfaces. The positioning of these elements (11, 12, 13) within the rotor performs an arresting action on the rock to limit the maximum radial velocity (Vr) the rock attains before its ejection from the compression crushing elements (11, 12, 13) for impact crushing on an adjacent surface. In this way the disadvantages of compression and impact crushing are minimized to produce a superior product.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.