rougher cell

rougher cell

[′rəf·ər ‚sel]
(mining engineering)
Flotation cells in which the bulk of the gangue is removed from the ore.
References in periodicals archive ?
When incubated with the lowest clinical value of methylcobalamin 200pg/ml (Figure 6(c)) the cells are elongated rather than cobblestone; they have a reduced cytoplasm and a rougher cell surface and they appear to have lost their ability to form a monolayer in comparison to the control Caco-2 cells (Figure 6(a)).
Finely ground raw ores are entrained to the stirred vessel, where the ores are sufficiently mixed with the reagent, then fed into a rougher cell. With the effect of reagents, valuable minerals are made hydrophobic and the others hydrophilic.
Feed for the cell is pulled after the second rougher cell ina row of Wemco 3,000-[ft.sup.3] roughers.
A multistage flotation circuit, comprising 24 rougher cells, 12 scavenger cells and 10 column cells produces copper concentrate with gold and silver byproduct metals.
Some 10,480 [m.sup.3]/h of cyclone overflow reports to the flotation circuit which comprises four rows of nine 128 [m.sup.3] capacity rougher cells and two rows of six 128 [m.sup.3] cleaner scavenger cells.
The final stage in the production process includes a series of rougher cells, where the pulp is chemically treated to separate the copper, molybdenum and silver from the gangue.
These 50 [m.sup.3] units are operating as rougher cells.
Sulphide flotation begins in five banks of mechanical rougher cells for a total retention time of 25 mm.
This is conducted in closed circuit with the cyclone overflow reporting back to the rougher cells.
The cyclone undersize from mill 1, 2, and 3 each feed two banks of 15 rougher cells. Mill 4 feeds three banks of 10 cells.
Cyclone overflow at 75% passing 76 microns and at 30% solids flows to two parallel banks of flotation cells each consisting of two 28.3 [m.sup.3] pre-rougher cells, four 8.5 [m.sup.3] rougher cells and three 8.5 [m.sup.3] second cleaners.
With the pyrite rougher cells available, a plumbing rearrangement was in order.