Classifying – separating – and assorting solids – Plural – diverse separating operations – Sifting and stratifying
Patent
1998-07-15
2000-06-27
Savage, Matthew O.
Classifying, separating, and assorting solids
Plural, diverse separating operations
Sifting and stratifying
209423, 210808, 210280, B03B 700, B03B 500, B07B 900, B07B 400
Patent
active
060795670
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a separator for separating particles from a liquid. More particularly, the invention relates to a jig for separating metal values from a liquid slurry.
The present invention may be advantageously applied to jigs for separating metal values from gangue. It is convenient to hereinafter describe the invention in relation to that particular embodiment, however it is to be appreciated that the invention described herein may also be advantageously applied to other types of separating apparatus.
BACKGROUND ART
Jigs are one of the most common separators used in the known process for separating heavy minerals or ores from lighter gangue. The "Harz Jig" is one of the older types of jigs and includes a submerged fixed screen through which water is pulsed as the ore and gangue moves across the screen, causing the lighter gangue to flow along the surface of the water over the screen and the heavier ores to gravitate down and through the screen. The "Hancock Jig" utilizes an oscillating screen in a tank of water whereby a tray is given a combined horizontal and vertical reciprocating motion which causes the ore and gangue to pass rapidly over the screens, with the lighter gangue moving over the screen and the heavier material passing through the screen.
Previously, jigs were used widely for concentrating and washing base metal ores. Jigs are simple in operation and can be constructed locally with low cost to the owner and little maintenance. The use of jigs today, however, is slowly diminishing due primarily to the fact that power and water consumptions are high in known jigs and the tailing losses are generally higher than in other separating processes.
DISCLOSURE OF INVENTION
The present invention provides in one preferred embodiment a separator for separating dense particulates from a slurry said separator including: arranged to be submerged in the liquid; top of the bed; the bottom of the bed to the top of the bed;
According to a further embodiment the invention also provides a method of separating dense particulates from a slurry including the steps of: adapted to retain larger particles from the slurry; and dense particulates to fall through the bed whilst at the same time causing a mixture of gangue and liquid to flow over the top of the bed to be discharges as tailings.
In one arrangement the agitation means comprises means for oscillating the bed by moving the bed in a generally up and down direction the stroke preferably being in excess of, at least 60% of the largest dimension of at least 90% of the heavy particulates.
In a particularly preferred arrangement according to the present invention the housing is substantially the same shape as the hutch thereby forming a chamber between the hutch and the housing. The chamber may be annular. Preferably the chamber is shaped to facilitate movement of liquid which flows over the outer edge of the bed into the chamber during use of a separator according to the present invention.
The housing provided according to the present invention may completely surround the hutch. In a preferred arrangement the housing substantially surrounds the hutch. In a particularly preferred embodiment the housing comprises an upper component and a lower component. The upper component is preferably substantially cylindrical. The lower component may be funnel shaped and is preferably substantially conical in shape. Most preferably the funnel shaped lower component is substantially frustoconical in shape. The upper and lower components may be connected to one another. The upper and lower components may be removably connected to one another. In a preferred arrangement the upper and lower components of the housing are rigidly connected to one another.
The housing may be substantially enclosed. Preferably the housing is suitable to be pressurized. A pressurized housing allows the separator to be operated at greater than atmospheric pressure. Pressure greater than atmospheric pressure in a pressurized housing can be reached by increasing the
REFERENCES:
patent: 2132377 (1938-10-01), Bird et al.
patent: 2134154 (1938-10-01), Smith
patent: 3703237 (1972-11-01), Cohen-Alloro et al.
patent: 5453179 (1995-09-01), Stultz
Savage Matthew O.
Ward Richard W.
LandOfFree
Separator for separating particles from a slurry does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Separator for separating particles from a slurry, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Separator for separating particles from a slurry will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1776438