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What are main factors that influencing centrifugal ore beneficiation separation?
Date:2014-12-03 12:13 From:Bailing Machinery Author:admin
There are two factors that affect the centrifugal ore separation: Structure parameters and technological parameters of the equipment.
1. The equipment structure parameters
(1). Drum slope it directly affect the flow velocity of pulp in the ore centrifugal separator, which affect the rate of pure mineral.Large gradient, fine mineral rate is small, high concentrate grade, low concentrate recovery rate.If grade is too large, the pulp flow velocity is too fast, concentrate hard deposition in the drum wall, not separation.On the other hand, if the slope is too small, although the concentrate rate is bigger, recovery rate is higher, but concentrate grade is low, because the flow velocity is small, can reduce capacity.Therefore, must be properly slope.
(2) Drum diameter and length of drum diameter mainly influence capacity, large diameter, large area, high capacity.When dealing with a tin of mud, a diameter of 800 mm of centrifugal separator, processing capacity can reach each unit 30 tons per day. Drum length main influence recovery, drum, ore grain settling time is longer, recovery rate is higher, the opposite is low.
2. The process parameters includes the feeding size, feeding volume, feeding concentration, feeding time and drum rotational speed, etc.
(1)The production and practice has proved that when the upper feeding limitation of ore centrifugal separator is more than 74 micrometers, the concentration flushing becomes difficult. choose don't index. Centrifugal separator is compared commonly effective graded recovery range is 37 ^ - 10 microns.Of course, should be according to the requirement of the ore properties and the dressing products, after test to determine the most appropriate feed particle size.
(2) The feeding volume of centrifugal concentrator feed size affect the status of the drum wall flow membrane, if the feed size is too large, fast speed, separation effect is low, even can't afford to separation effect.
(3) The ore pulp feeding concentration on the influence of the centrifugal separator production capacity is very big, at the same time also affect selected indexes.
(4) The feeding time In the process of continuous feed, tailings grade is higher increases with the increase of the feeding time, until the instantaneous higher tailings grade and feed grade close, so far no separation effect at this moment, the only transportation role.Therefore, must be properly feeding time. Feed time is too long, recovery rate is low;Too short, the concentrate grade is low, the effective use of time for equipment is less, the processing capacity is low.The general processing tin mud, feed time with 3 minutes advisable.
The ore centrifugal separator we introduced today is hot sale in Sudan and other African countries for gold separation, besides, Bailing also recommoned Wet pan mill and flotation machine for gold ore separation according to different gold ore properties.
1. The equipment structure parameters
(1). Drum slope it directly affect the flow velocity of pulp in the ore centrifugal separator, which affect the rate of pure mineral.Large gradient, fine mineral rate is small, high concentrate grade, low concentrate recovery rate.If grade is too large, the pulp flow velocity is too fast, concentrate hard deposition in the drum wall, not separation.On the other hand, if the slope is too small, although the concentrate rate is bigger, recovery rate is higher, but concentrate grade is low, because the flow velocity is small, can reduce capacity.Therefore, must be properly slope.
(2) Drum diameter and length of drum diameter mainly influence capacity, large diameter, large area, high capacity.When dealing with a tin of mud, a diameter of 800 mm of centrifugal separator, processing capacity can reach each unit 30 tons per day. Drum length main influence recovery, drum, ore grain settling time is longer, recovery rate is higher, the opposite is low.
2. The process parameters includes the feeding size, feeding volume, feeding concentration, feeding time and drum rotational speed, etc.
(1)The production and practice has proved that when the upper feeding limitation of ore centrifugal separator is more than 74 micrometers, the concentration flushing becomes difficult. choose don't index. Centrifugal separator is compared commonly effective graded recovery range is 37 ^ - 10 microns.Of course, should be according to the requirement of the ore properties and the dressing products, after test to determine the most appropriate feed particle size.
(2) The feeding volume of centrifugal concentrator feed size affect the status of the drum wall flow membrane, if the feed size is too large, fast speed, separation effect is low, even can't afford to separation effect.
(3) The ore pulp feeding concentration on the influence of the centrifugal separator production capacity is very big, at the same time also affect selected indexes.
(4) The feeding time In the process of continuous feed, tailings grade is higher increases with the increase of the feeding time, until the instantaneous higher tailings grade and feed grade close, so far no separation effect at this moment, the only transportation role.Therefore, must be properly feeding time. Feed time is too long, recovery rate is low;Too short, the concentrate grade is low, the effective use of time for equipment is less, the processing capacity is low.The general processing tin mud, feed time with 3 minutes advisable.
The ore centrifugal separator we introduced today is hot sale in Sudan and other African countries for gold separation, besides, Bailing also recommoned Wet pan mill and flotation machine for gold ore separation according to different gold ore properties.
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