High turbulence mill and bi-negative pressure turbine thereof
US7708216B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Jan 24, 2005 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Apr 10, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB02C13/282
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A high turbulence mill used for producing supermicro powder and nanomaterials includes: a driving device provided on a base; a hollow grinding casing having a toothed ring-shaped guide stator fixed to an inner circumference thereof; a bi-negative pressure turbine rotatably mounted within the grinding casing; a hopper for delivering materials into the grinding casing via a material feeding pipe; a material discharging pipe communicated with the grinding casing for discharging pulverized products; and a control device for electrically controlling the high turbulence mill. When the specifically designed bi-negative pressure turbine spins at a high speed within the grinding casing under the driving operation of the motor, strong vortexes and high turbulence will be formed in the grinding casing, and thus a gas-solid two-phase flow is formed. Under the high turbulence, the materials are subjected to violent self-grinding effect, strong impact and strong shear force, and then an accelerated and effective pulverization of the materials is obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.