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Mar 28 2015 · The spiral first developed for the treatment of beach sands is used in iron ore concentration to treat minus 6 mesh (3.36 mm) to 100 mesh (0.149 mm) ores. Efficiency below 100 mesh decreases rapidly and spirals are ineffectual on finer materials. Spirals are normally operated at a pulp density of 25 to 30 solids.

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The pulp density is an important parameter which influences the grinding efficiency. In iron ore for instance a variation of 2 to 3 solid content in the slurry could lead to a difference up to 10 on the energy (kWh/T) for a similar grind. Optimization of mill performance by using online ball and pulp measurements J o u r n a l P a p e r

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The need for Das et. al.16/ has pulp density 9.02 solids and at an airflow data were fitted to a model. beneficiation ofprinted circuit boards communution fines.

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The size distributions of the products from laboratory-scale batch grinds of a leadzinc ore and a tin ore were measured as a function of pulp density. A reduction in the overall grinding rate at high pulp densities correlated well with the increase in pulp viscosity.

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High grinding density the material is easy to stick around the steel ball so the impact and grinding effect of steel ball on materials is good but the pulp flows slow which is not conducive to improve the processing capacity of the ball mill. There are some measures taken to control the grinding density.

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The size distributions of the products from laboratory-scale batch grinds of a leadzinc ore and a tin ore were measured as a function of pulp density. A reduction in the overall grinding rate at high pulp densities correlated well with the increase in pulp viscosity.

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Batch Mill Grinding of Ore Batch grinding affords the best opportunity for first studies of pulp consistency. Table 6 shows some of the results. The consistencies ranged from 80 to 20 percent solids. The initial five tests will be considered first and the last one will be mentioned later. In the last test of the series of five (33 percent solids) so much water was used that the mill was filled

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Further increase in pulp density did not promote the leaching rate. Higher iron and sulfur content in the concentrate introduced a lag period impairing leaching rates. Stepwise leaching was found to be more effective than starting at a 10 higher pulp density in the beginning itself. Most of the solubilized iron was in the form of ferric ions.

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Thus some iron dressing plant have adopted abnormity grinding medium instead of steel ball in the second section of milling operation. (3) the density of the pulp and the speed of the feeding ore. Pulp density has its best range. The feeding speed should be equality and continuity.

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At such times the speed will need to be dropped and the water addition adjusted to provide optimum feed density The pulp iron Humphreys spirals Working . International Journal of Mining Science and to changes in pulp density iron ore it needs to determine the separation capabilities of this separator based on an estimated 450 million

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Mar 28 2015 · The spiral first developed for the treatment of beach sands is used in iron ore concentration to treat minus 6 mesh (3.36 mm) to 100 mesh (0.149 mm) ores. Efficiency below 100 mesh decreases rapidly and spirals are ineffectual on finer materials. Spirals are normally operated at a pulp density of 25 to 30 solids.

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At such times the speed will need to be dropped and the water addition adjusted to provide optimum feed density The pulp iron Humphreys spirals Working . International Journal of Mining Science and to changes in pulp density iron ore it needs to determine the separation capabilities of this separator based on an estimated 450 million

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