OUTOTEC GRINDING TECHNOLOGIES

Metallurgical ContentBall Mill TRUNNION BEARINGSTrunnion BRONZE BUSHINGSTRUNNION BASE AND CAPBall Mill LUBRICANT JACKSBall Mill PINION SHAFT BEARINGS The first part of the mill that we will look at is the TRUNNION BEARING. This is a HYDROSTATIC BEARING which is a slow moving bearing that carries a heavy load. Usually it is constructed from Babbitt's metal. If you happen to …

Improving Energy Efficiency Via Optimized Charge Motion ...

Jan 08, 2016· In this training module, we'll cover the workings of a semi-autogenous grinding mill, or SAG mill, that's designed to be the first stage of a grinding circuit. Ore that's crushed in a primary ...

OUTOTEC GRINDING TECHNOLOGIES

Detecting the onset of overloading in a semi-autogenous grinding (SAG) mill is a challenging task for operators to perform due to the complex and nonlinear nature of an overload. To detect an overload, operators must simultaneously monitor the correlations between several measurements of the SAG …

Mill Charge - an overview | ScienceDirect Topics

acid-forming feed, as well as special feed and discharge arrangements and special bearing arrangements. Outotec SAG and ball mill Outotec high-performance grinding mills use advanced simulation tools for the best possible process efficiency, mechanical reliability, and maintainability. Our mill range covers comminution applications.

Modelling SAG milling power and specific energy ...

Advanced Simulation for Semi-Autogenous Mill Systems: A ... and size distribution, water discharge rate, ball throughput, bearing pressure, pebble throughput, and toe and shoulder angles of the internal load. 2.1 SAG mill model The particles fed to the mill are ground in the milling chamber and subsequently downloaded into the discharge zone, where, according to a classification probability, they

Overload Detection in Semi-Autogenous Grinding: A ...

Modelling SAG milling power and specific energy consumption including the feed percentage of intermediate size particles ... In these circuits the SAG mill is the largest energy consumer. In many engineering ... rectly measured with bearing pressure measurements, it was decided to discard it as an input variable. The main reason is that

MillScanner™ - WordPress

SAG mill product feeds two parallel ball mills of 6.6 m×11.1 m (internal diameter×length), each with a 9.7 MW twin pinion drive. The ball mills are operated at a ball charge volume of 30–32% and 78.5% critical speed. The SAG mill trommel undersize is combined with the ball mills' discharge and pumped to two parallel packs (clusters) of ...

Ball Mill Liners - Polycorp Ltd

Ø SAG mill availability was lower than expected in the first year due to issues with the gearless drive and trommel panel failures. Figure 1 shows the ramp up of the Cadia Hill SAG mill by quarter.

Increase throughput and capacity in SAG mills

On a 11'-6" x 22'-0" Ball Mill, the trunnion bearing lubrication system provides continuous low pressure flood oil for cooling and lubrication of the bearings, and high pressure oil for hydrostatic lift of the feed and discharge trunnions during start-up of the mill. System monitors including pressure switches and flow monitors are provided, along with temperature sensors that monitor ...

Ø Effect of SAG Mill Feed Size Distribution and Ore ...

The Selection and Design of Mill Liners . Malcolm Powell*, Ian Smit#, ... Mines (WA) 36ft SAG mill the number of Outer Head Liners was reduced from 36 to 18 pieces and in ... The variations tend to have a bearing on the size of the liner and its section thickness. There is ongoing development within this area as the size of the liners

Outotec Grinding Mills - Outotec

discharge bearing pressure in a sag mill ... rolling bearing SAG mill Product Description This series ball mill is widely used in black volume of ball, ... » Learn More. Inferential measurement of SAG mill parameters … Mill bearing pressure and powerdraw ... The SAG mill discharge screen oversize conveyor measurement has ...

SAG/Ball Mill Optimization | KnowledgeScape

Jul 08, 2019· Measuring SAG Mill Charge and the Increased Benefits of Utilizing Accelerometers for Positioning ... a mill. For example, bearing pressure can be dependent on mill …

Trunnion Bearing Assembly Ball Mill & Rod Mill

Discharge of pebbles, finer rock, ball scats and slurry from mills and its flow through trommels, and into other processing operations has strong impacts on overflow ball mill performance.

PAI SAG Mill Training - YouTube

and size distribution, water discharge rate, ball throughput, bearing pressure, pebble throughput, and toe and shoulder angles of the internal load. 2.1 SAG mill model The particles fed to the mill are ground in the milling chamber and subsequently downloaded into the discharge zone, where, according to a classification probability, they

Autogenous and Semi-Autogenous Mills | FL

Single stage SAG Mills are very beneficial in reducing CAPEX for plants with a staged throughput approach. When future tonnage is to be increased, the SAG Mill can feed downstream ball milling to boost capacity. Fuller-Traylor SAG/AG Mills range in size from 4.3m through 12.2m in diameter with powers as high as 28,000 kW.

Measuring SAG Mill Charge and the Increased Benefits of ...

Jan 08, 2016· In this training module, we'll cover the workings of a semi-autogenous grinding mill, or SAG mill, that's designed to be the first stage of a grinding circuit. Ore that's crushed in a primary ...

Ball Mill Shell Replacement - YouTube

• Oil-lubricated cartridge bearing assembly • Heavy-duty bearings for reliability and long life Gland Seal Options • Standard- and low-dilution seal water or mechanical seal • Replaceable XH-800 shaft sleeve for maximum life Applications • Primary Metals: SAG/ball mill discharge, cyclone feed and tailings

Modelling SAG milling power and specific energy ...

Typically, SAG mill control is performed with respect to bearing pressure and other process variables which are used to estimate volumetric loading in order to optimize the mill throughput. While these methods are typically effective, they can also have several shortcomings when changes in mill liners, lifter profiles (wear), ore density ...

Measuring SAG Mill Charge and the Increased Benefits of ...

lifter configurations and operating parameters on the mill efficiency and performance. The MillTraj software was also utilized to simulate the outermost charge trajectories in terms of lifter profiles and mill speeds. For the mill with higher mill load and lower speed, the power draw of the mill differed

AMIT 135: Lesson 6 Grinding Circuit – Mining Mill Operator ...

SAG mill control, insight, and reliability.!!!!! The throughput and efficiency of a SAG mill depends on the volumetric load: An overloaded mill has ... Typically, SAG mill control is performed with respect to bearing pressure and other process variables ... Improve grate discharge design to keep pulp level constant all through the mill length

The Selection and Design of Mill Liners - MillTraj

Modelling SAG milling power and specific energy consumption including the feed percentage of intermediate size particles. ... Even if the mill total load is a key variable and can be indirectly measured with bearing pressure measurements, it was decided to discard it as an input variable. ... SAG mill power consumption (Pc) in kW, ...

Modelling SAG milling power and specific energy ...

Modelling SAG milling power and specific energy consumption including the feed percentage of intermediate size particles. ... Even if the mill total load is a key variable and can be indirectly measured with bearing pressure measurements, it was decided to discard it as an input variable. ... SAG mill power consumption (Pc) in kW, ...