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 ...

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 …

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, …

Energy consumption represents a significant operating expense in the mining and minerals industry. Grinding accounts for more than half of the mining sector's total energy usage, where the semi-autogenous grinding (SAG) circuits are one of the main components. The implementation of control and automation strategies that can achieve …

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 …

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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 …

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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.

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 …

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 …

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

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.

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 …

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AG mills (or SAG mills with low ball charges) are often used in single-stage grinding applications. Based on their higher throughput and coarser grind relative to AG mills, it is more common for SAG mills to he used as the primary stage of grinding, followed by a second stage of milling. AG/SAG circuits producing a fine grind (particularly ...

The SAG Mill is a machine added by Ender IO. It uses Micro Infinity (µI) to grind (or mill) items into their crushed variants, like Ores into Dusts. The SAG Mill has four output slots; recipes can have 1-4 different outputs, with different chances of obtaining those outputs. Uniquely, the SAG Mill can use Grinding Balls made from various materials to increase …

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.

This Sag Mill is driven by the 4MW ... Home. Products & Services. Engineering News ... Previous in Forum: oil leak in transformer : Next in Forum: neutral ... Change Mode. Subscribe to Discussion: CR4 allows you to "subscribe" to a discussion so that you can be notified of new comments to the discussion via email. Rating Vote: …

1. SAG mill is the primary tool for grinding. SAG mill is used before the other mills. Ball mill is a secondary, and it is used after the SAG mill. 2. SAG mill breaks the raw material into pieces for the further grinding. Ball mill is used to grind the pieces of raw material into. powder-like structures. 3.

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

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 mills use a combination of steel balls and rock particles as grinding media, while AG mills use only the ore itself. Both types of mills are used for grinding ore in mineral processing operations, but SAG mills are larger in size and can grind larger quantities of ore. AG mills, on the other hand, are smaller and are typically used for ...

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.

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peak performance and balancing the power available in the SAG mill and ball mill, the transfer size must be measured and controlled. • The transfer size will be 500 …

LRS for SAG MILL trips on qround fault. initially there was a flash around the rotor cable erae but was check and re-tight, Also check the moving and fixed contact in the LRS but found out that one phase ie one side of the electrode rod has chane colour indicating heat up. The holding bolts was check and tightened but when started the ILL it ...

Based on experience, mill-liner designs have moved toward more open-shell lifter spacing, increased pulp lifter volumetric capacity, and a grate design to facilitate maximizing both pebble-crushing circuit utilization and SAG mill capacity. As a guideline, mill throughput is maximized with shell lifters between ratios of 2.5:1 and 5.0:1.

Due to its strong lifting capacity and excellent grinding performance, the trapezoidal liner is widely used in the SAG mill. The structure of the trapezoidal liner is shown in Fig. 1, the main dimensions are: dip angle (tau), length of the top edge (L) and height (h).Dip angle (tau) determines the trajectory of the mediums in the SAG mill, …

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The biggest characteristic of the sag mill is that the crushing ratio is large. The particle size of the materials to be ground is 300 ~ 400mm, sometimes even larger, and the minimum particle size of the materials to be discharged can reach 0.1 mm. The calculation shows that the crushing ratio can reach 3000 ~ 4000, while the ball mill's ...

Beta Riders Club Discussion Forum View topic . 05 02 2015 Set your race sag on the Sachs to 108 110mm to start you will come back to this and fine tune later Set clickers to the middle of the range As Chris the Editor at Dirt Rider learned the Beta bikes intercorrelate small changes from the front to the back and the back to the front so we …

To participate in the 911Metallurgist Forums, be sure to JOIN & LOGIN; Use Add New Topic to ask a New Question/Discussion about Grinding. ... We have evaluated more than 50 AG/SAG mills from different plants around the world, and their PI or equivalent databases. We simulated the operating parameters and were able to match the same …

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.

Ge Sag Mills Forums ge canada, sag mill drive, operating cost and reduce availability of ball and sag mills. read more ge energy saver 5 hp motor, frame 184t, 460 v, 1755 rpm . Learn More Ge Digital Customer Center. ... Espresso Machine & Coffee Grinder Reviews, How-Tos And Discussion Forums.

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 …

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 …

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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 ...