Sag Mills Systems

The Copper Mountain SAG mill is 10363 mm [34 feet] in diameter and 6096 mm [20 feet] long. It is a grate discharge mill with an inside diameter of 10363 mm [34 feet] and a grinding length of 5334 mm [17.5 feet]. The mill is driven by two 8,500 horsepower ABB motors. Figure 2 - The 34' x 20' SAG mill

Brakes For Grinding Mills, Ball & Sag Mills. Kor-Pak specializes in the design, engineering, selection, packaging, and service/repair for Industrial Braking Systems for Grinding Mills used in Mining applications including Ball and Sag mills. Category: Industrial Brakes & Clutches. Description.

CITIC HIC has received an order for SAG Mill Ø7.9m x 5.3m LG – 5,500kW SAG Mill Ø7.0m x 4.1m LG – 2,800kW Ball Mill Ø7.32m x 10.68m... 02 April 2010 SINO Iron Mill Arrive at Site

For SAG mill control, expert systems are often used as they are able to detect the rapid increase in mill weight and anticipate an imminent overload using combinations of rules. However they often reduce the feed rate more than necessary in some situations, and require time to return the feed rate to maximum ...

SAG mill linings require frequent maintenance, so it is critical that liners can be replaced with a minimum amount of downtime. Megaliner(TM)'s …

SAG mills are primarily used at gold, copper and platinum mines where steel balls are used for the grinding. The Manta Controls Advanced Control System, called the SAG Cube, automatically monitors and controls a SAG Mill, keeping track of critical process variables impacting mill throughput. For most sites, one hour of operation provides a ...

Polycorp is a global supplier of Rubber and Rubber Steel Mill Liners and Discharge Systems for AG/SAG Mills, Rod Mills, Ball Mills, Scrubbers and Mixing Drums. Polycorp has supplied the mining industry with Mill Liner Systems since 1968, with over 300 Mill Liners installed in …

Minding the Grind: Maintenance Options to Keep SAG Mills Turning. Purpose-built structures such as the Skyway system from Russell Mineral Equipment can provide a stable, safe and efficient platform for mill liner bolt removal when compared with the common approach of hanging jackhammers and impact wrenches from a chain hoist.

Inventory ID: 6C-GC02. MPSI HARDINGE 21' x 11' (6.4m x 3.35m) EGL Sag Mill with 2875 HP, 240 RPM Motor

LG A mill power equation for SAG mills. Minerals and Metallurgical Processing. Feb 1990 pp57-62. Gross power No load power Net power drawn by the charge (8.13) The net power is calculated from Net power KD2.5L e! c./ Watts (8.14) In equation 8.14, D is the diameter inside the mill liners and Le is the effective length of the mill including the ...

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As a result, ABB developed three of the largest diameter and most powerful drive systems for a SAG and two ball mills installed at the highest altitude to date. The fully integrated and optimized solution for the grinding circuit consists of: 1 x 28 MW GMD to power the 40 ft SAG mill. 2 x 22 MW GMDs to power two 28 ft ball mills.

SAG Mill Grinding Circuit Design. Here is a list of the SAG Mill Manufacturers amp Suppliers I know FL Outotec CITIC Heavy Industries Co Ltd Thyssenkrupp Polysius Farnell Thompson TyazhMash 911Metallurgy A highlight of SAG milling has been the collaboration between grinding mill manufacturers and mining companies Experimental work on very large mills is difficult expensive and potentially ...

In this paper, we develop a state space model of semi-autogenous (SAG) mill systems, which is of great significance to the mineral processing control. According to the practical e

batu hijau sag mill. The Batu Hijau is a large open pit porphyry copper/gold deposit mined using traditional truck and shovel techniques. The Batu Hijau operation is currently extracting Phase 6 ore utilizing a mining fleet of 111 trucks, six electric shovels and three excavators which are capable of moving an average of 815,000 tonnes of ...

The project was part of a major intervention at two grinder lines, where we repair the concrete, replace all anchor bolts, inject resin into the foundation, and epoxy grout different components on two SAG mills (8,5 m ø x 3,8 m @ 11 rpm) and two Ball mills (5.2 m ø x 8.0 m @ 14 rpm) drive system.

system, primary mills and secondary mills. In the second generation, SAG mills re-placed the second and third stages of the crushing system and also the primary mills. Example configuration for the second generation. SAG and ball mill for the wet grinding of gold ore in the Dominican Republic.

SAG Mill Control: It Shouldn't be that Hard. An economically appealing method for improving operations is available without the capital expense—get more out of a mill by applying the advanced control capabilities in the existing plant control system By Andrew Thornton. Modern plant control systems (PCS) whether Programmable Logic ...

i.e. mill power and bearing pressure. 4. System maintenance was complex and time consuming. i.e. the microphones required constant cleaning and alignment to yield a clean signal unaffected by other surrounding equipment. Therefore the SAG mill speed could not be controlled using the microphone based signal and

Figures 8 and 9 on the right show results from a gold plant's SAG mill achieved with MillStar's Segregated Ore Feed Controller combined with the Power Optimiser: • The standard deviation of the mill feed control is greatly reduced. • The cyclone feed is more stable, allowing for consistent size separation and feed to downstream processes.

is a supplier of all types of grinding mill systems to the gloabl mining market. We supply acoustic response based control systems for tumbling mills of all types, including SAG mills as an aftermarket product. You can contact me for more information. [email protected]

The SAG mill was designed to treat 2,065 t h −1 of ore at a ball charge of 8% volume, total filling of 25% volume, and an operating mill speed of 74% of critical. The mill is fitted with 80 mm grates with total grate open area of 7.66 m 2 ( Hart et al., 2001 ).

The result is the most advanced and comprehensive instrument available for use on SAG and AG mills known as MillSlicer. DCL is based in Gainesville Florida, and we proudly design and manufacture our systems in the United States.

SAG Mill Expert System Grinding Circuit. The original process control interface consisted of a series of stand alone 4-20 ma controllers requiring the …

As the SAG mill enters a stable operation state, the grinding system's charging behavior in the PH-SP and SP grinding systems is different. As shown in Fig. 9, the shoulder and the head in the SAG mill containing polyhedral ore particles are slightly higher than that of the SAG mill containing only spherical particles. It means polyhedron ...

SAG Mill Discharge. Controlling the feed and discharge of a mill is mostly a stabilisation exercise – you need to be able to quickly and accurately control the mill feed rate. If the mill feed setpoint is changed, then the actual feed rate needs to stabilise at the new target in a short period of time. The feed rate setpoint can then be tied ...

Gearless mill drive (GMD) technology has further expanded the use of large SAG milling allowing Outotec to produce the world's largest SAG mill of 42' in diameter drawing power at 28 MW. Today, Outotec is the world leading supplier of gearless SAG mills operating globally.

Parts of SAG Mill to be lubricated: Trunion Bearing (feed end) Motor Bearings Gearbox Pinion Bearings Fig.1 : SAG mill Diagram Trunion Bearing (dis. end) 7. Lubricant Data: Masbate Gold Project's SAG mill uses Compounded Gear Oil as their main lubricant. But a different class of Gear oil is use in every operating system of the SAG mill.

The SAG Mill Cube system graphic shown in Figure 1 demonstrates that . the system is fully integrated with the Yokogawa CS 3000 DCS used at . Newcrest Mining Telfer Operation and Figure 2 (next page)

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 …

mills. The mills in mining operation grind the product from the crushers to fine material ready for treatment. Rod mills, ball mills, autogenous mills, and semi-autogenous mills (SAG Mills) all have a number of lubricating and hydraulic systems, and they must work to keep mineral output high.

SAG mills generate higher levels of impact reduction and ball mills higher levels of abrading action. A mill lining system serves two purposes: to protect the mill shell from wear caused by the impact and abrasion of the mill charge, and to elevate and tumble the mill contents in the necessary manner to create a grinding action.

SAG Mill Expert System Grinding Circuit. The original process control interface consisted of a series of stand alone 4-20 ma controllers requiring the operators to dial in set points for the numerous processing parameters. In many cases these controls were set to their manual mode of operation with the operators making all the dynamic process ...