Tailings conveyor with rotary impellers disposed and rotatable at progressively faster speeds for threshing and conveying tailings through the conveyor and method of operation of the same
US6974384B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2004 |
| Grant date | Dec 13, 2005 |
| Priority date | — |
| Expiry date | Jul 30, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01F12/52
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tailings conveyor includes a housing for receiving tailings from the cleaning system, a first rotary impeller having threshing portions rotatable at a first speed for accelerating and propelling tailings along a predetermined path in the housing, and at least one additional impeller having threshing portions rotatable at a greater rotational speed for further accelerating and propelling the tailings along the path, such that the tailings collide with others of the tailings and against and along an interior surface of the housing for threshing the tailings, such that the tailings are progressively accelerated and threshed as they are conveyed through the conveyor. At least the first and second impellers are located in closely spaced relation for defining a threshing area within the housing and preventing build up of tailings that could lead to clogging and loss of efficiency and tailings throughput.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.