Classifying – separating – and assorting solids – Stratifiers – With liquid treatment
Patent
1979-08-08
1981-02-03
Hill, Ralph J.
Classifying, separating, and assorting solids
Stratifiers
With liquid treatment
209491, 209500, B03B 520
Patent
active
042487021
ABSTRACT:
A wash box for separating materials produced in, for example a mining operation, into fractions of different densities. The machine is divided vertically into compartments, including at least one stratification compartment and at least one reject compartment, the raw material being delivered onto the grid, the level of water in the compartments being higher than the grid. Vertical pulsations are applied to the water in the compartments, causing the water to travel through the perforations of the grid. The pulsations applied to the stratification compartment are effective to stratify the material on the grid, movement of the water through the wash-box tending to carry the lighter fraction from the wash-box while the pulsations applied to the reject compartment determine the rate at which the heavier fraction reject material falls from the grid plate into a reject extraction chamber adjacent to the reject compartment. The pressure produced in the stratification compartment upon the application thereto of each stratifying pulse, and which is dependant upon the quantity of the heavier fraction on the grid over the stratification compartment, is measured by sensing means, and this measurement is used to control the amplitude of the pulsations applied to the reject compartment. Valves applying the pulsations to the stratification and reject compartments are driven by a common drive means, and the frequency at which the pulsations are applied to the reject compartment is higher than, preferably at integral multiple of, the frequency at which pulsations are applied to the stratification compartment. In this manner, the maximum rate of which reject material may be removed from the grid may be considerably extended and, by a finer control of the amplitude of the pulsations applied to the reject compartment, this may be achieved without any significant reduction in the efficiency of separation.
Craven Geoffrey F.
Wallace Walter M.
Hill Ralph J.
Norton-Harty Colliery Engineering Limited
LandOfFree
Stratifier discharge control does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Stratifier discharge control, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stratifier discharge control will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-549632