Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent
1979-07-02
1981-04-28
Hill, Ralph J.
Classifying, separating, and assorting solids
Stratifiers
With liquid treatment
209492, B03B 520
Patent
active
042644402
ABSTRACT:
A washbox comprising a vessel divided into a stratification compartment and an adjacent reject compartment, a perforate grid plate extending across upper parts of the compartments. First pulsation means activates the water in the stratification compartment, and second pulsation means activates the water in the reject compartment separately and in isolation from the stratification compartment. A divider is mounted above the part of the grid plate which extends over the reject compartment, an upper surface of the divider defining a first outlet channel by which material of a lower density may pass from the washbox, whilst a lower surface of the divider, together with the said part of the grid plate which extends over the reject compartment, defines a second outlet channel along which material of higher density may pass from the washbox. Adjacent to the reject compartment is a reject extraction chamber, which is not in under water communication with the pulsations applied to the two adjacent compartments and which is open upwardly to atmosphere. A first conveyor means extends through the reject extraction chamber, which is adapted to convey that reject material which passes through the second outlet channel into the reject extraction chamber from the washbox. A separate, second conveyor means is mounted on the washbox for conveying from the washbox that reject material having fallen through the apertures in the grid plate towards the bottom of the washbox.
REFERENCES:
patent: 2013414 (1935-09-01), Llewellyn
Craven Geoffrey F.
Wallace Walter M.
Hill Ralph J.
Norton-Harty Colliery Engineering Ltd.
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