Here I try to explain how ground slurry is discharged from a grate ball mill or SAG How it works is the slurry flows across the grate as it would a screen panel On the other side of the gratescreens are veins like a pump impeller As the mill turnsrotates the slurry is “pumped” out and discharged Discharge Grates The natural flexibility of rubber has allowed rubber manufacturers to
Classifying Grate Discharge Ball Mill Classifying Grate Discharge Ball Mill The ball mill is an overflow type discharge mill and is designed for a 45 ball charge Balls should be added on a regular basis as they are consumed in the mill The balls are added with a one ton ball bucket lifted by an overhead crane and discharged into the ball mill
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Get Price >Ball Mill DesignPower Calculation The basic parameters used in ball mill design power calculations rod mill or any tumbling mill sizing are material to be ground characteristics Bond Work Index bulk density specific density desired mill tonnage capacity DTPH operating solids or pulp density feed size as F80 and maximum ‘chunk size’ product size as P80 and maximum and
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Get Price >Grate Discharge Ball Mill This type of mill usually works with a high circulating load and thus produces very little extreme fines The specific power consumption is therefore less than for an Overflow Mill A Grate Discharge Mill will also have 1525 higher capacity per volume unit as compared with an Overflow Mill
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Get Price >Grate discharge ball mill Under the same condition it has a higher capacity and can save more energy than other types of mills It is better to choose a grate discharge ball mill when the required discharge size is in the range of 02 to 03 mm Grate discharge ball mill is usually applied in the first grinding system because it can discharge
Get Price >Grate liners and ball mill liner The type of ball mill liner known as a grate liner is designed for discharge efficiency It allows the discharge of ground materials via slots With the Magotteaux range of alloys and their experience a longer lifetime and optimal grinding can be achieved
Get Price >Jul 03 2012 · Ball mills are also classified by the nature of the discharge They may be simple trunnion overflow mills operated in open or closed circuit or grate discharge lowlevel discharge mills The latter type is fitted with discharge grates between the cylindrical mill body and the discharge trunnion
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Get Price >Gratedischarge Type The gratedischarge type of Ball Mill has a grate at the outlet of the shell and causes less excessive grinding compared to the overflow type Therefore generally it is best suited to grind materials up to the particle sizes ranging from 60 to Get price
Get Price >Jul 03 2012 · Ball mills are also classified by the nature of the discharge They may be simple trunnion overflow mills operated in open or closed circuit or grate discharge lowlevel discharge mills The latter type is fitted with discharge grates between the cylindrical mill body and the discharge trunnion
Get Price >Ball Mills Industry Grinder for Mineral Processing Ball Mills 【Capacity】 From 0290 TH 【Advantages】Designed for long service life minimum maintenance can grind and homogenize mineral ores down to the nano range large volume of processing capacity 【Max Feeding size】 25mm 【Discharge size】007504mm 【Types】overflow ball mills grate discharge ball mills 【Service
Get Price >Grate Ball Mill Indonesia Mining Machinery Grate Discharge Advantage Benefits Grinding Grinding amp Classification Circuits Please be aware that adding a grate to your ball mill will reduce your EGL by around 500 600mm the depth of the pulp lifters and grate plate liner thickness plus it will also increase your mill motor power draw by anything from 1020 for the same throughput
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Get Price >What Is The Gradient Of Overflow Ball Mills What is the gradient of overflow ball mills Henan Mining Ball Mills A ball mill grinds ores and other materials to a typical product size of A trunnion overflow mill has an open discharge end Material flows through the trunnion as a result of the pulp gradient between the Ball mills operate either in open or closed circuit Live Chat 247 online
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Get Price >Ball Mill Discharge Grate Vs Overflow Samac In Kenya Flow And Grate Type Ball Mill Difference Overflow vs grate discharge ball or mill why retrofit the cost of a ball mill conversion from overflow to grate discharge is fairly affordable at 65000 for a 13 x 15 mill this is only for the discharge head grates and pulp filters rubber a comparison in oratory of overflow discharge ball mill vs
Get Price >balls and blocking the grate discharge Optimization of mill performance by using online ball and pulp measurements by B Clermont and B de Haas Synopsis Ball mills are usually the largest consumers of energy within a mineral concentrator Comminution
Get Price >The feed to ball mills dry basis is typically 75 vol ore and 25 steel The ball mill is operated in closed circuit with a particlesize measurement device and sizecontrol cyclones The learn more saving grate discharge ball mill
Get Price >These tests were done with a ∅082 x 1 m grate discharge mill with a 30 mm graded ball charge and a 30 filling degree The mill discharge pulp density was increased from 688 to 759 solids The data is summarized in Table III The example in Table III illustrates that the density has a large influence on the grinding efficiency In this
Get Price >Grate liners and ball mill liner The type of ball mill liner known as a grate liner is designed for discharge efficiency It allows the discharge of ground materials via slots With the Magotteaux range of alloys and their experience a longer lifetime and optimal grinding can be achieved
Get Price >Nov 01 2006 · Fig 8 shows the ratio of the discharge rate to the amount of fines remaining in the mill throughout the discharge process for a grate size G of 80 mm a fill level of 30 and a speed of 75 critical The discharge rate is initially high as the fines rich charge adjacent to the grate
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Get Price >With grate discharge mills – typically SAG AG and ball mills – the conventional relining process at the discharge end usually involves removing the dischargers and grates replacing with new lined versions and hammering in large long bolts through the layers to secure the liner components
Get Price >Ball Mill DesignPower Calculation The basic parameters used in ball mill design power calculations rod mill or any tumbling mill sizing are material to be ground characteristics Bond Work Index bulk density specific density desired mill tonnage capacity DTPH operating solids or pulp density feed size as F80 and maximum ‘chunk size’ product size as P80 and maximum and
Get Price >the mill based on the charge and application No auxiliary drive is required to perform maintenance which is done quickly with minimal heavy lifting due to the simple removal of the grate or discharge head to access the mill internals Sepro Mill shells are manufactured in one piece to high quality standards and are thermally stress
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Get Price >Ball Mill Discharge Screen Crusher Mills Cone 20181022ball mill discharge screenow to calculate the ball mill discharge size distributionand the ball mill discharge combine in grate discharge type ball mill a grate is provided at the discharge end of shellthe sag mill discharge is screened on a rotating trommel screenall load mill speed trommel screen aperture pebble
Get Price >For overflow ball mills the charge should not exceed 45 of the mill volume For grate discharge mills the charge should occupy about 50 of the mill volume Bond developed a relationship that can be used to determine the percent charge by volume as a function of the vertical height above the charge He and the radius of the mill R ie
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Get Price >Manufacturer of quality ball mills designs from 3 ft to 75 ft in diameter Overflow and grate discharge for wet and dry grinding Pebble and rod mills available
Get Price >ption of grate discharge ball mill There are two ways of grinding the dry way and the wet way The ball mill is used to grind many kinds of mine and other materials or to select the mine discharge ball mill features 1 Ball mill an efficient tool for grinding many materials into fine powder
Get Price >A ball mill also known as pebble mill or tumbling mill is a milling machine that consists of a hallow cylinder containing balls mounted on a metallic frame such that it can be rotated along its longitudinal axis The balls which could be of different diameter occupy 30 – 50 of the mill volume and its size depends on the feed and mill size
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Get Price >Office Add: Kexue Revenue, High and New Technology Industrial Development Zone, Zhengzhou, China
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