المنتجات الساخنة
Slurry flow in mills: grate-only discharge mechanism (Part-1)
网页2003年7月1日Effect of grate open area on hold-upIn rotating tumbling mills, initially the resistance to the flow of slurry is exerted by the charge (grinding media). The discharge grate offers further resistance to flow of slurry in grate discharge mills, the most
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Improved relationships for discharge in SAG/AG mills
网页2015年10月9日The literature exposed a clear lack of previous research on the influence and performance of grate/pulp lifter design in AG/SAG mill discharge. The current
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Slurry discharge capacity of autogenous and semi ScienceDirect
网页1996年4月1日1. Introduction The degree to which slurry is held up within autogenous (ag) and semi-autogenous (sag) mills influences their grinding capacity and power draw. The
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Slurry flow in mills: Grate-only discharge mechanism
网页2003年7月1日The flow capacity (grinding capacity) of these mills is strongly influenced by the discharge grate design––open area and
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The effect of grate design on the behaviour of grate-discharge
网页1986年9月1日Using multi- linear regression it was shown that G was not affected by grate design in the region of operation covered by the experiments, while E was only a weak
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How a Grate Discharge Ball Mill Works 911 Metallurgist
网页2015年8月13日How a Grate Discharge Ball Mill Works. 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
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Overflow VS Grate Discharge Ball or Mill Why Retrofit
网页2015年6月24日The discharge end of the Grate Discharge Ball Mill has at least ten times the discharge opening area, through the grate slots, compared to the common trunnion overflow type mill. The discharge
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(PDF) Slurry discharge capacity of autogenous and semi
网页1996年4月1日The resultant model explicitly described the effects of the mill discharge mechanism (i.e. grate or overflow), as well as the shape of the end sections (i.e. planar
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Overflow Versus Grate Discharge Ball Mills: An Experimental
网页The results of study on material flow through a grate discharge tumbling mill verses an overflow tumbling mill are presented to emphasize the effect of discharge flow
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Prediction of 3D slurry flow within the grinding chamber and discharge
网页2012年12月1日To explore three dimensional slurry flow in a SAG mill, including discharge through the grates and flow in the pulp chamber, we use a pilot scale Hardinge 6 ft (D) × 2 ft (L) (1.8 m × 0.6 m) mill. The model contains the complete mill geometry including the feed end, the main/belly/circumferential lifters, the end wall lifters, the grate,
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ITP Mining: Improving Energy Efficiency in SAG Mills
网页to enable the SAG mills to operate with high-energy efficienc y. There are two sub-objectives. The first is to study the effect of individual variables such as charge filling, shell lifter configuration and design of discharge grate and pulp lifter on power draft of the mill by isolating the effect that one has on another . The second sub-
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(PDF) A mechanistic model of SAG mills ResearchGate
网页2014年1月1日mill discharge has grate openings of 12.5 mm and the discharge grate was, for selected test s, equipped with pebble ports measuring 2.5 inches (6 3 mm). The mill was installed on top of a set of
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Slurry discharge capacity of autogenous and semi
网页1996年4月1日Process. 46 (1996) 53-72 Slurry discharge capacity of autogenous and semi-autogenous mills and the effect of grate design S. Morrell, I. Stephenson Julius Kruttschnitt Mineral Research Centre (JKMRC), Isles Road, lndooroopilly, Qld. 4068, Australia Received 17 March 1995; accepted 20 June 1995 Abstract A laberatory based
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Effect of port configuration on discharge from a HICOM® mill
网页2014年12月1日Cleary (2006) examined the axial transport and discharge of coarse rock in a ball mill using a very simple permeable wall to represent the effect of a grate. Coarse particle flow through the grate of a dry SAG mill into the pulp chamber was simulated by Cleary (2004) and slurry discharge by Cleary and Morrison (2012) .
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SLURRY FLOW IN MILLS : GRATE-ONLY DISCHARGE
网页Discharge grates play an important role in determining the performance of autogenous (AG), semi-autogenous (SAG) and grate discharge ball mills. The flow capacity (grinding capacity) of these mills is strongly influenced by the discharge grate design open area and position of apertures, as well as the performance of the pulp lifters. As
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A laboratory study of the performance characteristics of mill pulp
网页1997年11月1日In conjunction with the grate open area, the performance of the pulp lifters dictate the volumetric discharge rate of slurry out of the mill. The cross-section of a typical low level grate discharge mill (A) with pulp lifters positioned between the grate and the discharge trunnion as well as their general arrangement (B) is shown in Figure 1.
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The effect of grate design on the behaviour of grate-discharge grinding
网页1986年9月1日A model for the effect of flowrate and viscosity of slurry on the hold-up of slurry in a grate-discharge grinding mill has been developed. Given detailed specifications of the grate design (such as the area in the grate within which the holes are situated, the number of holes per m 2 and the hole size) and the flowrate and viscosity of the slurry
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Overflow VS Grate Discharge Ball or Mill Why
网页2015年6月24日The cost of a ball mill conversion from overflow to grate discharge is ‘fairly’ affordable at $65,000 for a 13′ x 15′ mill. This is only for the discharge head, grates and pulp filters (rubber). A comparison in
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Overflow Versus Grate Discharge Ball Mills: An Experimental
网页A set of experimental test work has been carried out in a continuous pilot ball mill of 0.41m X 0.56 m (diameter X length) at different mill speeds, percent solids and discharge mechanism. The results of study on material flow through a grate discharge tumbling mill verses an overflow tumbling mill are presented to emphasize the effect of discharge
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Prediction of 3D slurry flow within the grinding chamber and discharge
网页2012年12月1日To explore three dimensional slurry flow in a SAG mill, including discharge through the grates and flow in the pulp chamber, we use a pilot scale Hardinge 6 ft (D) × 2 ft (L) (1.8 m × 0.6 m) mill. The model contains the complete mill geometry including the feed end, the main/belly/circumferential lifters, the end wall lifters, the grate,
Contact
Improved relationships for discharge in SAG/AG mills
网页2015年10月9日The literature exposed a clear lack of previous research on the influence and performance of grate/pulp lifter design in AG/SAG mill discharge. The current understanding from literature lacks knowledge of mill content size distribution and its effect on discharge through the grate at various aperture sizes and radial positions.
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Slurry discharge capacity of autogenous and semi
网页1996年4月1日Process. 46 (1996) 53-72 Slurry discharge capacity of autogenous and semi-autogenous mills and the effect of grate design S. Morrell, I. Stephenson Julius Kruttschnitt Mineral Research Centre (JKMRC), Isles Road, lndooroopilly, Qld. 4068, Australia Received 17 March 1995; accepted 20 June 1995 Abstract A laberatory based
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SLURRY FLOW IN MILLS : GRATE-ONLY DISCHARGE
网页Discharge grates play an important role in determining the performance of autogenous (AG), semi-autogenous (SAG) and grate discharge ball mills. The flow capacity (grinding capacity) of these mills is strongly influenced by the discharge grate design open area and position of apertures, as well as the performance of the pulp lifters. As
Contact
A laboratory study of the performance characteristics of mill pulp
网页1997年11月1日In conjunction with the grate open area, the performance of the pulp lifters dictate the volumetric discharge rate of slurry out of the mill. The cross-section of a typical low level grate discharge mill (A) with pulp lifters positioned between the grate and the discharge trunnion as well as their general arrangement (B) is shown in Figure 1.
Contact
The effect of grate design on the behaviour of grate-discharge grinding
网页1986年9月1日A model for the effect of flowrate and viscosity of slurry on the hold-up of slurry in a grate-discharge grinding mill has been developed. Given detailed specifications of the grate design (such as the area in the grate within which the holes are situated, the number of holes per m 2 and the hole size) and the flowrate and viscosity of the slurry
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Ball Charge and Grinding Efficiency 911 Metallurgist
网页SAG grate size and end mill design including grate geometry, location, shape, pan cavity, recycle % in pan cavity, et. al. SAG lifter and end cone geometry can change SAG mill performance more than 20%-50% depending on P80 transfer size and Axb, some of which is published and some will be published at SAG 2015.
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Overflow VS Grate Discharge Ball or Mill Why Retrofit 911
网页2015年6月24日The cost of a ball mill conversion from overflow to grate discharge is ‘fairly’ affordable at $65,000 for a 13′ x 15′ mill. This is only for the discharge head, grates and pulp filters (rubber). A comparison in laboratory of Overflow Discharge Ball Mill VS Grate Discharge Ball Mill.
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Overflow Versus Grate Discharge Ball Mills: An Experimental
网页A set of experimental test work has been carried out in a continuous pilot ball mill of 0.41m X 0.56 m (diameter X length) at different mill speeds, percent solids and discharge mechanism. The results of study on material flow through a grate discharge tumbling mill verses an overflow tumbling mill are presented to emphasize the effect of discharge
Contact
effect of grate discharge area of sag mill
网页Slurry discharge capacity of autogenous and semiautogenous mills and the effect of grate design Morrell, S.; Stephenson, I. 00:00:00 A laboratory based study of tumbling mills has been undertaken in which the mill speed, grate open area and the position of the apertures were systematically
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