Effect of Screen Length on the Sieving Efficiency Figure 5shows the effect of screen length on the sieving efficiency when is equal to 3 mm is equal to 960 r/min and is equal to 25° increases significantly with the increase of and the increase of becomes slow after reaches a certain value
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Get PriceAccording to the equation the screen efficiency is 100 9 = 91% Two product formula Oversize Screening efficiency can also be determined by using the two product formula According to the two product formula the recovery of oversize material to the screen overflow can be calculated using the following expression
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Get PriceFor example if your screens are operating at 80% efficiency that means 80% of the desired aggregate size passes through the screens while 20% does not Efficiency should be as close to 100% as possible but keep in mind that it s unlikely you ll ever achieve perfection Hitting 90 95% is excellent for most operations
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Get Price1 Water content Experiments show that adding surface active material to water containing material can increase the activity and dispersibility of materials and improve the screening condition Besides using the vibrating screen deck that is made up of non hydrophilic materials also can improve the screening efficiency of vibrating screen
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Get PriceWhat factors affect the screening efficiency of mining vibrating screen and how to improve it 20 May 2024 0 comments When the water content of the material is large the material is prone to sticking which reduces the screening efficiency Generally speaking the wet material with a large water content can improve the screening effect by
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Get PriceThe invention relates to a mining device for improving the screening efficiency of a feeding hopper The mining device comprises the feeding hopper and a screen wherein the screen is inclined; a discharge opening of the feeding hopper is formed above the top of the screen; and a baffle is welded at the bottom end of the feeding hopper and is upwards inclined
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Get PriceBetween 20 and 30 Hz a commonly used range the screening efciency increases at longer screen lengths one of which was shown as Fig 3a at 20 Hz Fig 3b shows that efciency is almost proportional to screen length when the frequency is very high over 50 Hz Lower frequencies less than 10 Hz give curves that are Fig 3
Get PriceTIP 1 First you need to measure An ideal screen would theoretically work with an efficiency index in the 90% range This means that the rate of return that is the amount of material that recirculates in the process is only 10%
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