sag mill grate design

OuTOTec TurbO PuLP LifTer

increased mill load and attenuation of flow through the grate to the pulp lifter. TPL was specifically developed to minimize the occurrence of flowback and carryover to better optimise the processing efficiency of SAG/AG mills. The effectiveness of this design has been tried, tested and proven to improve

Minerals | Free FullText | Optimizing Performance of SABC ...

The discharge grates of the SAG mill were identified as a key component in the SABC circuit, and their design is a crucial factor in the mill's performance [17,18,19,20,21]. The initial design of the grate section caused a serious accumulation of pebbles within the SAG mill .

Brunswick Mine SAG Mill Liner Design and Wear

Jan 01, 2003· The mill operates in closed circuit with meter horizontal cyclones to produce a ground product of 90 micron nominal size (K80).The AG/SAG mill liners are steel (Norsteel, chromemoly steel) with rubber grates and rubber lined pulp original liner design was based on studying other AG/SAG mills and recommendations by the liner ...

Semiautogenous grinding (SAG) mill liner design and ...

SAG mill liner development draws primarily on practical experience from SAG milling operations supported by computerbased modeling of charge motion in SAG mills and on established good design practice. Liner design needs to respond to the process aspects of mill liner action that are critical to good SAG mill performance,, the impact of shell liners on the grinding action and of grates ...

Pilot and laboratory test procedures for the design of ...

The SAG mill has an inside diameter of m and an effective length of m. The mill operates at 75 per cent of critical speed. It is equipped with six peripheral ports (each 75 mm by 175 mm). Each peripheral port can accommodate a range of grate discharge and pebble port geometry. To control the feed rate to the mill, Mintek piloting

maximizing throughput on sag mill Pizzastation

Based on experience, millliner designs have moved toward more openshell lifter spacing, increased pulp lifter volumetric capacity, and a grate design to facilitate maximizing both pebblecrushing circuit utilization and SAG mill capacity As a guideline, mill throughput is maximized with shell lifters between ratios of 25:1 and 50:1.

China Grate Liner factory and manufacturers | HG

Based on experience, mill liner designs have moved toward more open shell lifter volumetric capacity and a grate design to facilitate maximizing both pebblecrushing circuit utilization and SAG mill capacity. Mill throughput is maximized with shell lifters between ratios of :1 and :1.

Shell Liners for Minerals Industry EB Castworld %Shell ...

The material of SAG mill liners are low C or high C CrMo Alloy steel,which depends on the specific working condition of the SAG mill. The hardness of AS2074 L2B is HB310HB380. We can make big size SAG mill liner castings with Sodium Silicate Sand Process Resin Sand Process.

Dr Steve Morrell SMC Testing

Slurry discharge capacity of autogenous and semi autogenous mills and the effect of grate design. Inernational Journal of Mineral Procesing Vol 46: 5372. 26. MORRELL, S. and MORRISON, R. (1989). Ore charge, ball load and material flow effects on an energy based SAG mill model. SAG Milling Conf 89, Murdoch University WA, pp. 27.

Modelling: Transfer size limits

How is the automatic T 80 calculated?. The software looks at the primary and secondary grinding stages and sees how much power is available in each stage. For example, the SAG mill may have 10 MW of power draw available and the two ball mills each of MW .

Advanced Simulation for SemiAutogenous Mill Systems: A ...

SAG mills (see Figure 1) are presently one of the most widely used ... influence of the design and the geometry of the mill pulp lifters. The results of the ... efficiency vector, ci (fraction), which includes two effects: one produced by the mill s internal grate and the other by the pulp evacuation system (Magne et al., 1995). Thus, c i is

Slurry flow in mills with TCPL — An efficient pulp lifter ...

Jun 01, 2006· The GDM include autogenous (ag), semiautogenous (sag) and grate discharge ball mills. The purpose of the pulp lifters is simply to transport the slurry passing through the grate holes into the discharge trunnion. The performance analyses of conventional design of pulp lifter have shown that a large amount of slurry flows back from pulp lifter ...

SAG and Ball Mill Liner EB Castworld % SAG and Ball Mill ...

2 天前· EB Castworld. Leading supplier of high alloy castings and forgings. There are 4 companies with sales of more than 100 million yuan, across the 4 major areas of wear resistance, heat resistance, corrosion resistance, and machinery

Rubber/metal grates for gold mine | Engineer Live

The design was reviewed four times during the trial. In the end, the new patent pending rubber/metal grate design achieved a final life of 235 days, approximately 60 per cent longer than the life of the metal grates. Other benefits of the newly designed rubber/metal grate over the incumbent metal grate design .

SOSSEGO SAG MILL 10 YEARS OF OPERATION AND .

A number of optimization and upgrading measures were taken over the 10 years of operation of the semiautogenous mill, including changes in the grate area, size and arrangement of aperture, liner profile and rock blasting plan. This work describes the main aspects of the circuit design and the improvements introduced over the first years of ...

SINGLE STAGE SAG/AG MILLING DESIGN

SAG/AG milling option is ideal for starter projects with significant exploration and expansion potential. Currently a number of the largest SAG mills designed are installed in single stage configuration. This paper discusses the challenges associated with the process design of single stage SAG/AG milling circuits, the design flexibility required to

Developments in AG/SAG Mill Modelling

grate design (GD), mill speed (CS), flowrate (Q), charge volume (CV) ... ag/sag mill circuit was constructed and run under simulated conditions of varying load volume, ball charge, closing screen ...

grates for pella ball mill

3 2 x 3 1 m grate ball mill capacity, 31/2inch grates and the, Grate Discharge Ball Mill, grates for pella ball mill ZCRUSHER .... grate discharge ball mill

Grinding Circuit Design for Adanac Moly SGS

design of a plant for Adanac Moly Corp. to include SAG and Ball milling. The hardness of each sample was measured in terms of SAG power index, SPI (for SAG grinding) and Bond Ball mill work index, BWi (for ball mill grinding). A further measure, the Minnovex crusher index, Ci was also measured for use in the CEET program to determine SAG

AG SAG Mill for Mineral Processing Wet Aerofall SAG ...

In this case, the SAG mill design can do that. In general, the SAG mill manufacturers will control the addition amount of medium such as steel ball at 28%, so that the capacity of semi SAG mill to process materials can be increased by 1030%. The SAG mill liners wear will increase by 15% due to the impact of medium such as steel ball during ...

MINE LINERS Magotteaux

• Mill size (diameter, length) • Maximum ball topup size • Mill rotational speed (rpm, variable or fixed speed, single or dual rotation) • Ore type (abrasivity of the ore) • Mill discharge type (grate discharge mill, overflow mill) • Available drilling pattern • Total filling degree (ore and balls) FAG SAG Main design .