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US 5,965,857 AGranted
Flotation cell row
AssigneeBaker Hughes Incorporated
InventorStephen Hughes
Life of this patent
Estimating the term…
Abstract
A flotation cell row including a row of cells through which, in use, a process liquid flows in turn, including a first bank of cells having a last cell 4 being the most downstream cell and a second bank of cells having a first cell 5 being the most upstream cell, the second bank being the bank immediately downstream of the first bank, in which one or both of the last cell 4 and the first cell 5 are structured to define a port 37 having a rim through which, in use, the process liquid flows from the last cell 4 to the first cell 5, and a valve member 10 mounted for movement between a closed position abutting the rim 44 and an open position spaced from rim 44, to control flow of process liquid through the port 37.
Claims22
A flotation cell row including:
- a row of cells through which in use a process liquid flows in turn, including a first bank of cells having a last cell, being the most downstream cell in the first bank, and a second bank of cells having a first cell, being the most upstream cell in the second bank, the second bank being the bank immediately downstream of the first bank, the first cell and the last cell having facing and juxtaposed open ends defining an opening between the cells, and a wall is a partition mounted in the opening,
- a port defined by one or both of the last cell and the first cell through which in use the process liquid flows from the last cell to the first cell, the port having a rim, the port being defined in the wall separating the interiors of the respective cells, and there existing two adjacent ports between the first cell and last cell,
- a valve member mounted for movement between a closed position abutting the rim and an open position spaced from the rim, to control flow of process liquid through the port, the valve member being a dart valve, conical in shape, and
- controlling means to control movement of the valve member, the controlling means including an actuator having an actuating arm and hinging means to connect the actuating arm to the valve member such that the actuator moves the valve member.
1 more element
A flotation cell row including:
- a row of cells through which in use a process liquid flows in turn, including a first bank of cells having a last cell, being the most downstream cell in the first bank, and a second bank of cells having a first cell, being the most upstream cell in the second bank, the second bank being the bank immediately downstream of the first bank,
- a port defined by one or both of the last cell and the first cell through which in use the process liquid flows from the last cell to the first cell, the port having a rim,
- a valve member mounted for movement between a closed position abutting the rim and an open position spaced from the rim, to control flow of process liquid through the port, and
- controlling means to control movement of the valve member, the controlling means including an actuator having an actuating arm and hinging means to connect the actuating arm to the valve member such that the actuator moves the valve member.
1 more element
A flotation cell row including:
- a row of cells through which in use a process liquid flows in turn, including a first bank of cells having a last cell, being the most downstream cell in the first bank, and a second bank of cells having a first cell, being the most upstream cell in the second bank, the second bank being the bank immediately downstream of the first bank,
- a port defined by one or both of the last cell and the first cell through which in use the process liquid flows from the last cell to the first cell, the port having a rim,
- an elastomeric dart valve member mounted for movement between a closed position abutting the rim and an open position spaced from the rim, to control flow of process liquid through the port,
- controlling means to control movement of the valve member, the controlling means including an actuator having an actuating arm and hinging means to connect the actuating arm to the valve member such that the actuator moves the valve member, wherein the hinging means is mounted on an internal surface of the first cell or the last cell and is hingedly connected to the actuating arm and the valve member such that it partially rotates upon movement of the valve member, and
- process liquid level monitoring means associated with the controlling means, such that the controlling means maintains the level of process liquid in the banks between a predetermined minimum and maximum by opening and closing the valve member.
2 more elements
A flotation cell row including;
- a row of cells through which in use a process liquid flows in turn, including a bank of cells having a last cell, being the most downstream cell in the bank, and a discharge pipe or chute having an inlet being immediately downstream of the last cell,
- a port defined between the last cell and the discharge pipe or chute through which in use the process liquid flows directly from the last cell to the discharge pipe or chute, the port having a rim,
- a valve member mounted for movement between a closed position abutting the rim and an open position spaced from the rim, to control flow of process liquid through the port, and
- a controlling means for controlling movement of the valve member, the controlling means including an actuator having an actuating arm and hinging means to connect the actuating arm to the valve member such that the actuator moves the valve member.
1 more element
Dependencies are inferred from the claim text.