Screen energizer
US7182206B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 1, 2003 |
| Grant date | Feb 27, 2007 |
| Priority date | — |
| Expiry date | Jan 8, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B1/46
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A screening system including a vibratory screen separator having a resiliently mounted frame with a low frequency vibratory drive coupled to that frame. A taut screen is rigidly mounted in the frame and a vibration transmitter assembly is resiliently mounted to the frame and fixed to the taut screen. The vibration transmitter includes a planar ring compressed against the taut screen and vibration generators. The vibration generators are air turbines with eccentric weights. The frame includes support elements extending from the cylindrical outer housing sections of the separator to a concentrically mounted support ring. Compressed air is provided to the turbines through hollow structure within the frame. Valves control exhaust from the turbines. The low frequency vibratory drive operates in a range of about 8 Hz to 30 Hz while the vibration generators provided by the air turbines operate in a range of about 275 Hz to 600 Hz.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.