Pumps and Pumping

How to Derate a Pump Curve for Slurry Pumping

The pump curves published by pump manufacturers are for the performance of the pump on water. Some pump manufacturers use a derating factor to correct the head and efficiency of the pump when pumping slurry.

This a subject which has had a lot of controversy and disagreement It is suggested that the method used be left to the manufacturer The method

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Mining Tailings Pumps

The disposal of mill residues or tailings costs 2 to 6 cents pel ton, however carefully it is done. Residues may be moist sand which can be conveyed by belt or trucked to a dump, moist solid slime which can be handled somewhat similarly, or pulp which can be pumped to a suitable place. The handling of sand and slime does not call for any special

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Ceramic Shaft Sleeve For SRL Pump

Ceramic Shaft Sleeve For SRL Pump Increases Part Life By Several Times That of Steel Sleeves

One of the problems of concern to operators of centrifugal slurry pumps is the wear of shaft sleeves and the deterioration of packing material in the gland.

This matter has also been under study by the Engineering Research and Development Department of EQUIPMENT

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Power Required for Pumping Water

In Pumping Water, the power required to raise a given quantity of water to any height up to 100 ft. can be calculated from this Table, which assumes the use of a double inlet centrifugal pump of good design working well up to its full capacity and reasonably near to its most efficient speed. To calculate the total power consumption the appropriate

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Slurry Pumps

When the slurry cannot be transferred from one machine to the next by gravity, one method of handling it is by means of a Wilfley slurry Pump, which is shown in Fig. 21. It is employed in most modern flotation plants for elevating and transferring all classes of material from coarse gritty slurry to fine slime. Differing considerably in design and

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Froth Factor for Pump Sizing

The ‘froth factor’ is a measure of the air contained in the froth. It is quantified by filling a measuring cylinder or bucket, of known volume, with froth and measuring the froth column. After air dissipation the remaining water and solids volume is measured. The ratio of the original volume of froth to the remaining combined volume of water

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Tailings Pond Water Balance

Water systems in modern mines are complex and an understanding of the tailings pond and plant water balance is necessary. Control of the water balance can avoid problems such as operating losses from water shortages or hazardous releases as a result of a water surplus. Here is a schematic of a typical

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