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Normally the setup is a two stage system with 3,4 or 5 flotation cells in series. Principle of operation. Before froth flotation can work, the ore to be treated is reduced to fine particles by crushing and grinding so that the various minerals
2.5.3 The choice between column and mechanical cells 14 2.5.4 The use of column flotation for various ore types. 15 2.5.5 The use of column flotation in cleaner cells 15 2.5.6 The use of column cells as cleaners in platinum flotation: an industrial trend. 16 2.6 Factors effecting the optimization of the column cell 16 2.6.1 Depressant dosage 16
Flotation is carried out at low solids, usually under 10% dilution. In the U. S. on bituminous coal the trend is toward open type No. 30 Sub A Cells, single overflow, and with supercharging. Flows of dilute pulp up to 1500 GPM are effectively treated with excellent results through a single 4 cell machine.
2. The smaller crushed chrome ore is fed to ball mill for grinding. Inside the ball mill, the crushed chrome ore will grind the ore to about 0.2 mm with 3 inch steel balls. 3. Screened products are transported to the jig for rough separation and to three concentrating tables for fine separation.
The flotation machines are mounted on low piers to allow for drainage. An operating platform of wood was installed between flotation machines to give clear working space. The flotation machine launders were designed to permit changes in cleaning stages without shut downs or prolonged delays, and permits circuit adaptation to changes in ore characteristics.
Given that grinding of ores in the plant ball mill is conducted with the chromium media in the presence of the plant process water and 60 g/t of CuSO 4 as an activator, the calibration of the Magotteaux mill was also performed with the same grinding media in the presence of synthetic process water and 60 g/t of CuSO 4.
The flotation procedure included 0 , 1 , 5 , and 20 minute conditioning periods in the flotation cell with sulfuric acid at pH 2.0. Total reagent consumptions were 1.0 pound of Armac C and 13.0 to 21.0 pounds of H2SO4 per ton of ore.
With low chromium balls , the anodic polarization curves and rest potentials were affected very little by the rotation speed and the currents. by Jorge September 24, 2018 September 18, 2018 Categories Grinding Tags 991 Post navigation
June 10, 2020
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