OPTIMIZATION OF THE SAG MILL CIRCUIT AT KINROSS PARACATU BRAZIL Marcos Paulo Gomes¹, Luiz Tavarez Junior¹, Edis Siqueira Nunes Filho², Juliana Colacioppo² Alex Jankovic² and Walter Valery² ¹ Kinross Paracatu, Brazil ² Process Technology and Innovation ABSTRACT Kinross Paracatu and Process Technology and Innovation (PTI) have …

3 SAG mill (8 – 15% ball charge) Variable competency ore 4 High ball charge SAG mill (15 to 25% ball charge) Incompetent ore 5 Low ball charge SAG mill, high mill speed. (4% ball charge, 90% Nc) A cross between AG and SAG for competent, abrasive ores. As typically operated in RSA. 6 SAG mill (configurations 3, and 5 ) with recycle crusher

Control stabilization for SAG mills. BrainWave is ideally suited to stabilize the operation of SAG mills. Effective grinding in a SAG mill depends largely on how it is loaded. A mill containing too much material does not allow for adequate movement of the ore and balls. A mill that does not contain enough material does not take advantage of the ...

Hi All Electrical Engineer, I have problem in our Sag Mill Motor which tripping on Earth Fault and block tripped on the Multilin protection relay. This Sag Mill is driven by the 4MW ...

The Collahuasi motor was for a 40 ft SAG mill. The Antamina 38 ft SAG mill was also driven by an ABB motor and the hanger plates had not failed on that machine after several years of operation. Similarly, the Sossego motor for the 38 ft SAG mill had not failed. It too had an ABB motor and it had operated longer than the Collahuasi motor.

The Results: SAG overload downtime events at Lihir were completely eliminated following the application of FORESTALL. A few of the significant inputs to the FORESTALL algorithm, called predictors, pointed to the culprit, the mill lubrication system. Faults in the mill lubrication system had been contributing to the overload events and the ...

Control of -SemiAutogenous Grinding(SAG) mill weight is an example of an important process that exhibits many of these aspects. Maintaining the SAG mill weight at the optimum value is critical for achieving maximum grind rate efficiency and mill production (Powell, M.S., van der Westhuizen, A.P., & Mainza, A.N. 2009).

Sag Mill Pinion Failure Modes Split P. CMP Paper 16 10 09 Final ABB Group sag and ball mill drive failures conveyorsindia co sag mill pinion failure modes This page is about ball mill failure modes Vibrations on tube ball mill pinion gear bearings Dominant mode of stator vibration SAG Mill sag and ball mill drive failures Prithvi Travels sag and ball mill drive failur addition to the …

A SAG mill overload is a highly nonlinear operating situation, ... For fault isolation or diagnosis they have been less powerful because of the non-causal nature of …

Stopping mill equipment is not a desirable alternative, so the best way to resolve SAG mill challenges is to use simulation technology for equipment design alterations. Replacing the SAG's worn-out liner can occur every six to nine months and cost between $30,000 U.S. and $200,000 U.S. per hour, and each repair takes between 40 hours and 120 hours.

Optimizing your SAG mill operation - International Mining. Mar 21, 2007· Optimizing your SAG mill operation. Posted by Matrix on 21st March 2007 Sanjeev Latchireddi, Chief Process Engineer – Grinding Americas, Outokumpu Technology, looks at …

SAG Mill Grinding Circuit Design. On-line Vibration Monitoring System Improves Fault Detection in a SAG Mill Though we never failed to detect actual failures, there were other things going on: overheating, noise, etc. When those issues arose, we were called to the mine to check the equipment. Read More

Fault Detection and Signal Conditioning. Millstar Power Optimiser, ... • Mill feed cuts were prevented, resulting in a stable mill loading. ... Figures 8 and 9 on the right show results from a gold plant's SAG mill achieved with MillStar's Segregated Ore Feed Controller

SAG milling extends itself to many applications due to the range of mill sizes available. They can accomplish the same size reduction work as two or three stages of crushing and screening, a rod mill and some or all of the work done by a ball mill. SAG mills are also an optimum solution for wet grinding since crushing and screening in these ...

Fault analysis To facilitate quick and efficient fault analysis, our reliable ... Whether you're talking about SAG or a ball mill, space is a delicate issue, especially in the concentrator. That's why we always design our Gearless mill drives drives to

Reliable fault detection on a SAG Mill with on-line vibration monitoring system. Dana Lake, OneProd and Service Manager, ACOEM. Description. This paper will show the advantage of an on-line continuous vibration monitoring compared …

Case Studies Archive - Lubrication Engineers. Customer Profile A Large International Mining Equipment OEM for Ball and AG/SAG Mills Application Open Gear Lubricant Spray System to service a Ball Mill with Food and Beverage Lube Eng Providing Lubrication Solutions for Drive Chains at a Food Manufacturing Facility Customer Profile A Large Food Manufacturing Facility …

This SAG mill trunnion bearing lubrication system was custom built for our customer's The ... Lubrication System Fault And Solutions Of A Sag Mill-[http ... jacking system of ball mills. Maintenance of the ball mil systems ... Lubrication and ... inching system. SPC4 bolts for SAG and Ball mill erection. Lubrication System Of A Sag Mill ...

A SAG mill is generally used as a primary or first-stage grinding solution. Attrition between grinding balls and ore particles causes grinding of finer particles.SAG mills are primarily used at gold, copper and platinum mines with applications also in …

Lubriion System Fault And Solutions Of A Sag Mill. Ball Mill Trunnion Bearing Lube System . Mar 19, 2017 . On a 11' 6 x 22' 0 Ball Mill, the trunnion bearing lubrication system provides . The ball mill's low pressure oil system pumps oil from the reservoir . the feed rate will help to ensure maximum efficiency of the grinding system.

What's the Difference Between SAG Mill and ... - JXSC Machine

Online Vibration Monitoring System Improves Fault Detection in a SAG Mill. A copper mine site already had an extensive condition monitoring …

Mill (grinding) - Wikipedia. SAG mill. SAG is an acronym for semi-autogenous grinding. SAG mills are autogenous mills that also use grinding balls like a ball mill. A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21%. The largest SAG mill is 42' (12.8m) in diameter, powered by a …

lubrication system fault and solutions of a sag mill. FOB Reference Price:Get Latest Price ball mill lubrication szm - freshmon.eu. cement ball mill lubrication system. cement ball mill lubrication system nochildwaitingorg. crushing and mining is a leading and pioneering enterprise with the most advanced international level in rd, manufacturing and selling of large-scale crushing

With high aspect ratio SAG mills total charge to ball charge ratio should be greater than 2 (up to 2.5) for a coarse mill feed (say F80 > 110 mm). If the mill feed size is fine, say 50 mm or 30 mm, then you are looking at a total charge to ball charge ratio of about 1.5-1.6.

What can cause severe ground fault on HV breaker serving SAG MILL via LRS. LRS for SAG MILL trips on qround fault. initially there was a flash around the rotor cable erae but was check and ...

Sag Mill Pinion Damage. Pinion bearing damage in ball mill Using HD measurement technologies Bulgarian copper producer Asarel Medet AD monitors the mechanical condition of critical equipment in the openpit mine and flotation plant This case study deals with the successful detection of outer race damage on a ball mill pinion.

On-line Vibration Monitoring System Improves Fault Detection in a SAG Mill Though we never failed to detect actual failures, there were other things going on: overheating, noise, etc. When those issues arose, we were called to the mine to check the equipment.