Customer case aboutcopper sag mill discharge

copper sag mill discharge

Deep Dive into Efficiency CASE STUDY: Copper Installation

Using the current footprint, the customer wanted to replace an existing screen in a Sag Mill copper installation with a General Kinematics STM-SCREEN™. The SAG discharge screen experienced surges of material (25%-40% solids) from the SAG mill, which overloaded their existing screen.

Paper # 25 Copper Mountain Overview on the Grinding

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

SAG Mill Discharge Scats Ball Chips Grinding

You may find more information regarding the SAG discharge if you search them as "scats" (broken ball chips). Safety Notes; they result from internal stresses in the balls impact and heat energy in the SAG mill causing a Martensite transformation in the ball (Crystals form in the metal) and they have a potential to rupture with very sharp edges.

INCREASING SAG MILL CAPACITY AT THE COPPER

Copper Mountain first feed to the SAG mill occurred in late May, 2011. The circuit began ramp up in mid-June of that year, with more consistent operating run times on the SAG and Ball mills. Plant throughput in SAG mill discharge screen opening slot size and initiating the overall expert system into the control

A potential application of collectorless flotation in a

Oct 01, 2010 Currently, Telfer uses thionocarbamate based RTD11A as the copper collector which is added in the mill discharge sump, flash flotation rougher feed, copper rougher feed box and head of the copper scavenger. The total dosage of RTD11A typically ranges from 5 g/t to 8 g/t depending on the copper head grade.

Optimum SAG Mill Discharge Density Grinding

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. Use Add Comment = to comment on someone else’s

SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING

The SAG mill has a trommel on the discharge end of it. Oversize is returned to the mill by a bucket wheel and water jet. Trommel undersize was pumped to a vibrating screen where the screen oversize was sent back to the mill and the undersize was pumped to the cyclone circuit. Figure 2 shows the flowsheet for line 2 with only the trommel,

Deep Dive into Efficiency CASE STUDY: Copper Installation

CASE STUDY: Copper Installation THE SCENARIO: Using the current footprint, the customer wanted to replace an existing screen in a Sag Mill copper installation with a General Kinematics STM-SCREEN™. The SAG discharge screen experienced surges of material (25%-40% solids) from the SAG mill, which overloaded their existing screen. During

Schenck Process builds on success of 'Beast' mill

One of three Beast SAG mill discharge screens at Cobre Panama’s processing complex “Despite the challenges of COVID, we are currently doing well as we work towards our 85 Mt/y continuous throughput target. Also, over the last 6-12 months we have scoped some concurrent, complementary projects that should allow us to reach 100 Mt/y and beyond.”

A potential application of collectorless flotation in a

Oct 01, 2010 This may provide an opportunity of using a flash unit for collectorless flotation on the SAG mill discharge stream to produce a high grade copper concentrate. Finally, it is worth mentioning that collectorless flotation is also proved to be an effective means to recover chalcopyrite from the pyrite concentrate after regrind at Telfer.

SAG Mill Discharge YouTube

Sep 10, 2012 This is a ¨low quality¨video of a SAG Mill´s discharge. But in any case, a SAG mill for you to see. xMetallurgist.ca

Major Mines & Projects Gibraltar Mine

SAG mill discharge is screened with the oversize returning via conveyor belt to the feed of the mill. Undersize material, consisting of 0.5 inch minus, is then pumped to a distributor where six 13.5 foot diameter, 2500 Hp ball mills are operated in closed circuit with hydrocyclones to produce a minus 350 micron product used to feed the

SAG MILL DISCHARGE SCREENS-TROMMEL vs. VIBRATING

The SAG mill has a trommel on the discharge end of it. Oversize is returned to the mill by a bucket wheel and water jet. Trommel undersize was pumped to a vibrating screen where the screen oversize was sent back to the mill and the undersize was pumped to the cyclone circuit. Figure 2 shows the flowsheet for line 2 with only the trommel,

Development of an Innovative Copper Flowsheet at Phu Kham

• 12.8 Mt/a of copper-gold bearing ore from the open pit • Plant Feed Grades are 0.75% Cu and 0.33g/t of Au and 3.8g/t of Ag • Concentrate quality is +25% Cu, 7 g/t of Au and 60g/t of Ag • Primary Grinding Circuit contains 34 ft × 18 ft (13MW) SAG mill 24 ft × 39 ft (13 MW) ball mill •

SABC Grinding Circuit

This minus ¾” material was added to the sump via a 4″ bleed off line from the SAG mill trommel undersize pump discharge line. The operators had difficulty learning to predict how the SAG mill would respond to changes in ore size and hardness, mill speed, pulp density and ball charge and had trouble maintaining steady-state operation.

(PDF) Influence of feed size on AG / SAG mill performance

on average an increase in F80 for this particular mill (sag mill with 12- 15% balls) causes a higher specific energy and a consequent lower throughput at constant mill power.

Mill (grinding) Wikipedia

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 28 MW (38,000 HP) motor.

PAI SAG Mill Training YouTube

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 circui...

Peripheral Discharge Ball Mills -Theory and Practice

Mar 17, 2017 The principal function of the grate is to retain the ball charge in the mill, while permitting a peripheral discharge. The efficiency of the classi­fier, when a ball-mill is run in closed circuit, directly affects both tonnage and fineness. This will be discussed under capacity. Conditions Affecting Ball-Mill

What's the Difference Between SAG Mill and Ball Mill

Based on the high throughput and coarse grind, AG mills produce coarse grinds often classify mill discharge with screens and trommel. SAG mills grinding media includes some large and hard rocks, filled rate of 9% 20%. SAG mill grind ores through impact, attrition, abrasion forces.

(PDF) SAG mill circuit optimisation at Ernest Henry Mining

receives combined ball mill a nd sub screen deck size SAG mill discharge material via a 20/18 Warman centrifugal pump running with a 1700 kW variable speed motor and gearbox.

SAG Mill Discharge YouTube

Sep 10, 2012 This is a ¨low quality¨video of a SAG Mill´s discharge. But in any case, a SAG mill for you to see. xMetallurgist.ca

Minerals Free Full-Text Optimizing Performance of SABC

The discharge grates of the SAG mill were identified as a key component in the SABC circuit, and their design is a crucial factor in the mill’s performance [17,18,19,20,21]. The initial design of the grate section caused a serious accumulation of pebbles within the SAG mill

Increasing SAG Mill capacity at the Copper Mountain Mine

Copper Mountain’s concentrator was commissioned in May 2011. The circuit consists of a 34’ x 20’ EGL SAG mill, a Raptor 900 pebble crusher and two 24’ x 39’6” ball mills. Each mill is equipped with a 2 x 8500 HP dual pinion drive system. The plant was designed to process 1585 mtph of SAG feed.

(PDF) SAG mill circuit optimisation at Ernest Henry Mining

receives combined ball mill a nd sub screen deck size SAG mill discharge material via a 20/18 Warman centrifugal pump running with a 1700 kW variable speed motor and gearbox.

Mill (grinding) Wikipedia

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 28 MW (38,000 HP) motor.

What's the Difference Between SAG Mill and Ball Mill

Based on the high throughput and coarse grind, AG mills produce coarse grinds often classify mill discharge with screens and trommel. SAG mills grinding media includes some large and hard rocks, filled rate of 9% 20%. SAG mill grind ores through impact, attrition, abrasion forces.

PAI SAG Mill Training YouTube

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 circui...

SABC Grinding Circuit

This minus ¾” material was added to the sump via a 4″ bleed off line from the SAG mill trommel undersize pump discharge line. The operators had difficulty learning to predict how the SAG mill would respond to changes in ore size and hardness, mill speed, pulp density and ball charge and had trouble maintaining steady-state operation.

Autogenous and Semi-Autogenous Mills FLSmidth

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.

Difference Between Sag Mill vs Ball Mill mech4study

Oct 12, 2017 In the mining, some precious metals found are like gold, silver, nickel, and copper etc. Ball Mills: Ball mill is a fine grinder. A horizontal or vertical rotating cylinder which is filled partially with the balls of ceramics, small rocks and balls made from stainless steel. The ball charge of a SAG mill is about 29% to 30%. By friction and

Wichita Clutch Grinding Mill Clutch for Copper Mine SAG

Wichita Clutch Grinding Mill Clutch for Copper Mine SAG MillFull Article: https://altramotion/newsroom/2016/12/ap-grinding-mill-clutch-for-copper-min...

SAG Mill Liners for Discharge Grate EB Castworld %SAG

EB specializes in SAG Mill Liners for Discharge Grate for 20 years. We adopt cast process,send cast processs and so on.

SOSSEGO SAG MILL 10 YEARS OF OPERATION AND

** Percentage of the mill’s discharge section A detailed description of the modifications introduced in the SAG mill grates during this period can be found at Delboni Júnior et al. (2006). Such changes led to an increase in output from 1,450 tons/hour in 2005 up to approximately 1,600 tons/hour in 2006.

SAG Mill Trommel Screens Multotec

The SAG mill trommel screen provides a simple mechanism to classify large volumes of mill product.. Many designers and mill operators believe that the benefits of simplicity and the ability to handle throughputs in excess of 5 000 tph of solids make trommels the preferred equipment for this application.

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