sag mill discussion forum

Understanding the SAG Mill in Copper Ore Mining Process

A SAG mill, or semi-autogenous grinding mill, is a type of machine used in mining and mineral processing operations. It uses the crushing and grinding action of rocks to reduce materials such as copper ore into smaller pieces for further processing. Unlike traditional mills that rely on steel balls or other media to break down materials, SAG ...

Semi Autogenous Grinding (SAG) Mill For Sale, Sag Mining

Learn more about the Intelligent Grinding Expert System. According to professional data sources, by far the largest SAG mill is 42' (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor. While CIC is currently capable of manufacturing SAG mills with a maximum diameter of 21' (6.5m) SAG mill is being processed by us for Russian customers.

SAG mill and Pebble mill

To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN; Use Add New Topic to ask a New Question/Discussion about Grinding.; OR Select a Topic that Interests you.; Use Add Reply = to Reply/Participate in a Topic/Discussion (most frequent). Using Add Reply allows you to Attach Images or PDF files and provide a more complete input.; …

SAG Mill | Autogenous and Semi-Autogenous Mills

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.

SAG Mill and Ball Mill Maintenance Metrics | All Member Open Forum

I don't have access to enough data to give you a real benchmark on mills, and you would want to compare your site to similar operations. I've mainly worked with Copper and Gold mining clients running two- or three-stage comminution (SAG primary and one or two Ball secondary, some sites with a regrind mill). Performance has varied …

Materials | Free Full-Text | Optimization of the SAG Grinding …

Considering the continuous increase in production costs and resource optimization, more than a strategic objective has become imperative in the copper mining industry. In the search to improve the efficiency in the use of resources, the present work develops models of a semi-autogenous grinding (SAG) mill using statistical analysis and …

Real-Time Simulation and Control of a SAG Mill

The discussion emphasizes on the SAG mill simulation model, and pro- posed control strategy. 2. REAL-TIME SIMULATION ENVIRONMENT The real-time environment is based on standard tools available in the market and widely used in the academia and industry. The real-time integration of the simulator with an industrial …

Dynamic modeling and simulation of a SAG mill for mill …

The modeling and simulation of semiautogenous (SAG) mills have been widely used in the design and optimization of mill performance in terms of its power draw, processing capacity and product size distribution. ... Discussion of this peer-reviewed and approved paper is invited and must be submitted to SME Publications Dept. prior to Nov. …

SAG Mill Operating Work Index

To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN; Use Add New Topic to ask a New Question/Discussion about Grinding. OR Select a Topic that Interests you. ... A SAG mill operates with a 10000 hp motor. Typical power draw is 80% of maximum. The 80% passing feed size to the mill is 5 inches and the mill discharge has …

SAG Mill and Ball Mill Maintenance Metrics | All Member …

Can anyone share standard maintenance metrics benchmarks for SAG Mill and Ball Mills? What's good MTBF & MTTR targets as well as Maintenance Ratios? …

sag mill vibration

sag mill vibration. 07/19/2009 5:15 AM. I'm on a mining industry. we're having excessive vibration on the discharge end of our trunnion sag mill bearing. we already …

Choosing a SAG Mill To Achieve Design Performance

sized SAG mill may prevent production losses that would be many times greater over the extended start up period. This is the direct result of choosing the proper …

Minding the Grind: Maintenance Options to Keep SAG Mills …

When SAG mill liner bolts loosen, break or stretch beyond limits, liner impairment and degraded performance are generally next on the agenda, followed by mill stoppage for …

SAGMILLING .:. Home

Sagmilling is home to a collection of both free and subscription-based calculation tools to aid metallurgical process engineers perform comminution calculations. Grinding circuit …

Optimum SAG Mill Discharge Density

Choosing a SAG Mill to Achieve Design Performance

Choosing a SAG Mill To Achieve Design Performance. John Starkey1, Principal Consulting Engineer Sami Hindstrom2, Manager, Grinding Travis Orser2, Project Manager, Grinding. Starkey & Associates Grinding Design and Process Engineering 336 – 268 Lakeshore Rd. E. Oakville, Ontario L6J 7S4 PH: (905) 465-7512 Fax (905) 844-5297.

SAG Mill Process Control

To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN; Use Add New Topic to ask a New Question/Discussion about Grinding. OR Select a Topic that …

The future of SAG mills

This paper presents a critical review of underperforming AG/SAG mills based on public domain information comparing design expectations with actual operational performance. Actions taken in operations to mitigate the issues and optimise mill performance are listed, including a high level discussion on capital and operating costs.

SAG Mill for Small Operation

A Comprehensive Guide to SAG Mill Operation

Working Principle of a SAG Mill. The rock and grinding media are placed in the mill and rotated, causing the grinding media to tumble and crush the rock into smaller pieces. The …

Acoustic Sensing of Fresh Feed Disturbances in a Locked …

In a large-scale operation, feed ores are introduced into the AG/SAG mill in a continuous mode at a given flow rate to replace the discharging slurry. Nonetheless, the variations in the feed characteristics, typically hardness and size distribution, could cause sudden disruption to the mill operation. This would be challenging to detect in practice, …

Semi-autogenous grinding (SAG) mill liner design and …

Semi-autogenous grinding mills (SAG mills) are tumbling mills that most commonly have a shell diameter-to-length ratio of around two. With this high aspect ratio, SAG mills generate both thrown and cascading ball-milling actions with shell linings shaped to lift and to throw alloy steel grinding balls of up to 150 mm (6 in.) in diameter. These

SAGMILLING

Grinding Circuit Modelling Documentation. This documentation describes the operating and underlying mathematics of the SAGMILLING grinding circuit modelling program. It …

SAG Milling

The main drawback of SAG - high power consumption. To reduce power consumption, I think: The right determine of SAG feed size. This depends on the mill diameter and the ball size. Feed size necessary to take 80% of the maximum piece of ore that will crushed by the balls. For the big SAG more than 8 meters optimal feed size will be - 50mm.

Metallurgy & Mineral Processing

Pyrometallurgy: Roasting, Smelting, Refining & Calcining + Electrowinning. All aspects of pyrometallurgical processes operations and maintenance are opened for discussion: Calcination, roasting, smelting and refining (flux, slag) as applied to any metal including but not limited to Au, Ag, PGM, Fe, Cu, Cr, Zn, Pb, Sn and the utilisation of ...

problems of liners sag mill | Root Cause Analysis

There are several sag mill crushers at sarcheshme copper complex which have some serious problems. The problems are as follows: 1- Liners breakage (at the width of the liners) 2- cold-weld between the liners seams, and not being separated at the time of replacement. 3- In some cases, the bolts break

Starter of SAG Mills with rotor resistance

Advantages of the wound rotor/SER drive are: 1. If the SER converter drive fails, the drive can be switched to fixed speed bypass - starting the usual way with the LRS. 2. The converter only needs to be sized for 15-20% of the total motor rating with associated reduction in floor space, air-conditioning etc.

SAG Ball Mill Monitoring | Emerson US

SAG / Ball Mill Monitoring. Condition Monitoring to Ensure Reliability for Critical Grinding Equipment in Mining . Today's mining operations must keep crucial milling assets online and running optimally, but variations in ore particle size, feed rate and moisture content, can lead to plugging, high vibration and machine bearing wear, and ...

Manual design of SAG/ball/rod mill foundations

Structural engineering general discussion Forum. Manual design of SAG/ball/rod mill foundations. 3. thread507-180521. Forum. Search. FAQs. Links. …

Sag Mill Discussion Forum

sawmill tuning and chords - Discussion Forums - Banjo … - Forums - Miller Welding Discussion Forums. A place for Cedar Mill PTC members to discuss important topics. The views expressed in these forums are of the members only. They do not reflect the views of Cedar Mill Elementary.Posts. This discussion. Message User. 1,958 posts. 08-25-2011 …