# what is a grate discharge in a ball mill

### Overflow Versus Grate Discharge Ball Mills: An Experimental ...

12 Mar 2015 ... CMP 2015. It has been widely accepted to go for grate discharge ball milling when a coarse product is preferred or to avoid production of...

Get Price### Optimizing your SAG mill operation | - International Mining

21 Mar 2007 ... Generally, the discharge from AG/SAG mills consists of one or both of the ... will always be in contact with the grate until it is completely discharged, ... The mill discharge from these mills consists of slurry, which goes to the ball...

Get Price### Locked charge starts and your grinding mill - Outotec

CAUSES. SAG and ball mills with grate discharge are not prone to locked charge events because of the high amount of rocks and balls compared to fine ore.

Get Price### Overflow verses grate discharge ball mills: an experimental ...

21 Nov 2014 ... (1) Rao Latchireddi, (1) Raj K Rajamani and (2)Sanjeeva Latchireddi. (1) University of Utah, (2) EE-Mill Solution LLC, USA.

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Keywords. DEM; SPH; SAG mill; grate; pulp lifters; slurry; slurry discharge. ... modelling of axial flow in ball mills (Cleary, 2006, 2009b). Prediction of slurry flow in...

Get Price### Grate Ball Mill,Grate Type Ball Mill,Grate Discharge Ball Mill--Shanghai ...

The grate ball mill is usually used in the first segment of the two stages, or place of discharging the rough ore. The grate ball mill is roughly composed of the...

Get Price### Download the help documentation - SMC Testing

2 are grate discharge and ball mills are mostly overflow (a few, however, are grate discharge). In overflow mills the belly length inside liners, which is what the...

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the ball mill to a grate-discharge unit to draw full motor power. Manipulation of the proportion of secondary crushed feed allowed balancing of the duty between.

Get Price### Overflow VS Grate Discharge Ball Mill - Why Retrofit - Mineral ...

27 Dec 2015 ... Allow us to compare: Ball mills can be of the overflow or of the grate discharge type. Overflow discharge mills are used when a product with...

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ing mills. zenith Overflow Ball Mill sizes range from 5 ft. x. 8 ft. with 75 HP to 26 ft. x 41 ft. with 20,000 HP. ... include but not be limited to: grate discharge,.

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in modeling and control of the grinding process in industrial ball mills. Basic ... overflow discharge mill, diaphragm or grate discharge mill and centre-periphery.

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Ball Mills, and other forms of tumbling mills such as tube mills, rod mills and ... circuits, a grate discharge ball mill (sometimes known as a. “diaphragm discharge...

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Ball mills and rod mills are most commonly used for grinding materials. ... In grate discharge type ball mill, a grate is provided at the discharge end of shell.

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As the grinded material get discharged by overflow from the neck, the mill is called ... grate one, only with no material discharging grate in the cylinder outlet end.

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TEGA Pulp Dischargers & Upper Discharge Cone have been designed to be used in AG , SAG , Grate Discharge Ball Mill , etc. Our TEGA Discharger system can...

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Horizontal mills. Product range. 5. Rod. 10' x 15'. Ball. (geared). 5' x 27'. Ball. (GMD). 25' x 30'. AG/SAG. (geared) ... End peripheral discharge: dry grinding, produces a relatively fine rod mill product ... Grate discharge design. - Operates wet or...

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FT Series mills can be used as ball mills, rod mills or pebble mills, in trunnion overflow, grate, peripheral or airswept discharge, for wet and dry applications.

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Keywords. DEM; SPH; SAG mill; grate; pulp lifters; slurry; slurry discharge. ... modelling of axial flow in ball mills (Cleary, 2006, 2009b). Prediction of slurry flow in...

Get Price### Patent US2950869 - Ball mill grates - Google Patents

(Cl. 241-70) This invention relates to grinding equipment and more particularly to non-plugging discharge grates for ball mills and like equipment. Ball mills for...

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Grate. Pulp. Lifter. Discharge. Trunnion. Figure 1.1: Schematic of a typical SAG mill. 1.1.1. Field of breakage: The motion of charge or rocks and balls in SAG mils...

Get Price### Ball mill - Wikipedia, the free encyclopedia

There are two kinds of ball mill, grate type and overfall type due to different ways of discharging material. There are many types of grinding media suitable for use...

Get Price### Axial transport in dry ball mills - ScienceDirect

We use a simple model for grate discharge that allows prediction of the time varying axial distribution of different particle sizes within a discharging ball mill.

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of overflow-discharge mills but not to the same extent in grate-discharge mills. .... Rod and ball mills in Mular AL and Bhappu R B Editors Mineral Processing...

Get Price### Horizontal Grinding Mill Overflow Type, Grate-discharge Type, and ...

The grate-discharge 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...

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A reverse spiral in the discharge trunnion liner also assists this condition. OVERFLOW BALL MILL. 2. Ball Mill - Grate Discharge: This mill type embodies the...

Get Price### The scale-up of grate-discharge continuous ball mills

The scale-up of grate-discharge continuous ball mills. Int. J. Miner. Process., 4 : 1--6. Dimensionless selection functions for the grinding of material in continuous...

Get Price### slurry pooling and transport issues in sag mills - zenith

The discharge grate is designed to retain oversize material and balls in the mill, and ... difference in flow resistance of the slurry from AG milling to ball milling,.

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The ball mill series is divided in two types: the grate type and the overflow type. . ... 1.grate discharge ball mill. ...

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zenith overflow ball mill sizes range from 5 ft. x 8 ft. with 75 HP to 30' x 41' . and ... not be limited to: grate discharge, peripheral discharge, dry grinding, special...

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for ball and SAG mill applications, specifically in areas such as grates and shell and head protection where our intimate understanding of discharge flow dynam-.

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