capacity of sag mill and ball mill

What's the Difference Between SAG Mill and Ball Mill ...
Nov 26, 2019 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
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What is the difference between a SAG mill and ball mill?
A SAG mill is usually a primary or first stage grinder. SAG mills use a ball charge of 8 to 21%. [6] [7] The largest SAG mill is 42′ (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor. [8] A SAG mill with a 44′ (13.4m) diameter and a power of 35 MW (47,000 HP) has been designed. [9]
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Difference Between Sag Mill vs Ball Mill  mech4study
Oct 12, 2017 SAG mill make use of steel balls included with some large and hard rocks for grinding. These mills utilize the balls in making the large fragments of materials broken into pieces. The ball charge of a SAG mill is about 9% to 20%.This process takes place inside the large rotating drum of SAG mill which is filled with balls partially.
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SAG Mill Grinding Circuit Design  911metallurgist
Jun 06, 2016 By combining with SAG discharge and screening on the SAG discharge screens, top size control to the ballmill circuit feed is maintained while still unloading the SAG circuit (Mosher et al, 2006). A variant of this method is to direct pebblecrushing circuit product to the ballmill sump for secondary milling: while convenient, this has the ...
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Autogenous and SemiAutogenous 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. FullerTraylor SAG/AG Mills range in size from 4.3m through 12.2m in diameter with powers as high as 28,000 kW.
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Calculate Ball Mill Grinding Capacity  911 Metallurgist
Oct 15, 2015 Calculate Ball Mill Grinding Capacity. The sizing of ball mills and ball milling circuits from laboratory grinding tests is largely a question of applying empirical equations or factors based on accumulated experience. Different manufacturers use different methods, and it is difficult to check the validity of the sizing estimates when estimates ...
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SAG Mills and Ball Mills  YouTube
Dec 21, 2016 2 parallel SAG Mills each feeding 2 parallel Ball Mills (4 total). Around 50,000 TPD total grinding circuit capacity.
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Grinding Circuit  an overview ScienceDirect Topics
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 ).
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A Method of C alculating Autogenous/ SemiAutogenous ...
of large AG/SAG mills and large ball mills. However, it is necessary to discuss their operation because a Rod mill product has a similar slope to AG/SAG mills. This product slope averages less than 0.5 when plotted on log/log paper and therefore contains an extra amount of ne material ﬁ compared to a PSD, having a 0.5 slope. This ﬁ ne material,
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Freeing up milling capacity in a SAG mill ball mill ...
Jul 08, 2016 Where the SAG mill/ball mill circuit is the bottleneck in the processing plant the pebble circuit can be a significant factor in limiting overall plant capacity. The pebble circuit recirculating load can be very significant (depending on the ore characteristics and SAG mill
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AG Mill and SAG Mill  ball mills supplier
In general, the SAG mill manufacturers will control the addition amount of medium such as steel ball at 28%, so that the capacity of semi SAG mill to process materials can be increased by 1030%. The SAG mill liners wear will increase by 15% due to the impact of medium such as steel ball during the SAG mill
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SAG mills  Metso Outotec
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
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ball mill size and capacity  Cyno la Meute
The high unit capacity SAG mill/ball mill circuit is dominant today and has contributed toward substantial savings in capital and operating costs which has in turn made many lowgrade hightonnage operations such as copper and gold ores feasible. Future circuits may see increasing use of high pressure grinding rolls (Rosas et al. 2012).
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Gearless Mill Drives
Antamina Compania Minera Antamina S.A. Peru Project: One SAG Mill and 3 Ball Mill Drive Systems Capacity: SAG Mill 1000 t/h Ball Mills 1000 t/h Consultant: Bechtel, USA Mill Builder: FFE Minerals, USA Mill Size: SAG Mill 38 feet/11,58 m Ball Mills 24 feet/7,32 m Ore processed: Copper/Zinc Drive Rating: SAG Mill 20,1 MW, 9,23 rpm Ball Mills 11,2 MW, 11,38 rpm
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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 midJune of that year, with more consistent operating run times on the SAG and Ball mills. Plant throughput in the first months was quite variable with throughput tonnage greater than 40,000 tons one day and less than 25,000 the next on some ...
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What’s the difference of Ball mill, SAG mill, AG mill?
Attrition mill is a type of grinding mill by kinds of media to crush lump to powderlike substances. The impact can be rock on rock such as in an Autogenous Grinding (AG) mill, rock and a small ball charge (~10%), used in Semi Autogenous Grinding (SAG) mills, balls of various sizes in Ball Mills and less commonly these days, steel rods in Rod Mills.
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Grinding Circuit  an overview ScienceDirect Topics
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 ).
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Ball Mill  an overview ScienceDirect Topics
3.5.2.2 Ball Mills. The ball mill accepts the SAG or AG mill product. Ball mills give a controlled final grind and produce flotation feed of a uniform size. Ball mills tumble iron or steel balls with the ore. The balls are initially 5–10 cm diameter but gradually wear away as grinding of the ore proceeds.
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Ball mill  Wikipedia
A ball mill is a type of grinder used to grind or blend materials for use in mineral dressing processes, paints, pyrotechnics, ceramics, and selective laser sintering.It works on the principle of impact and attrition: size reduction is done by impact as the balls drop from near the top of the shell. A ball mill consists of a hollow cylindrical shell rotating about its axis. T
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high capacity sag ball mill
SAG and AG Mill – Amstar Industry When future tonnage is to be increased the SAG Mill can feed downstream ball milling to boost capacity. Amstar SAG/AG Mills range in size from 4.3m through 12.2m in diameter with powers as high as 28000 kW.
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Paper # 25  Copper Mountain Overview on the Grinding ...
The grinding circuit for the Copper Mountain project consists of one FLSmidth SAG mill and two FLSmidth ball mills. Figure 1  Overview grinding circuit 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
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Capacity Of Sag Mill  elektrotechnic.cz
capacity of sag mill and ball mill  lijmbeekstraat.nl. SAG is an acronym for SemiAutogenous Grinding. SAG mills are autogenous mills but 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 ...
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Gringding MillFor Mining  Hengin Heavy
Iron ore. 4500Kw. 320t/h. 191m3. 13.8r/min. 335t. ≤18. 90%. HENGIN can provide CITIC, SINOMA, NHI and other brand Grinding Mill,Ball mill, SAG mill ,AG mill,Rod mill
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high capacity sag ball mill
SAG and AG Mill – Amstar Industry When future tonnage is to be increased the SAG Mill can feed downstream ball milling to boost capacity. Amstar SAG/AG Mills range in size from 4.3m through 12.2m in diameter with powers as high as 28000 kW.
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Paper # 25  Copper Mountain Overview on the Grinding ...
The grinding circuit for the Copper Mountain project consists of one FLSmidth SAG mill and two FLSmidth ball mills. Figure 1  Overview grinding circuit 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
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Orway Mineral Consultants Canada Ltd. Mississauga, ON ...
and ball mills, have almost become obsolete in the move to higher milling rates required to process lower metal grades. Grinding circuits with fully autogenous (AG) or semiautogenous (SAG) mills, often combined with ball mills are now the standard to meet the high capacity requirement for processing ores with lower metal grades.
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Minerals Free FullText Optimizing Performance of SABC ...
The power draw of the SAG mill has room for significant improvement. As ball filling in the SAG mill is quite low, additional grinding media would likely increase the processing capacity of the SAG mill; however, the capacity of the ball mill, with installed power for
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Factors That Affect Ball Mill Grinder Capacity And Quality ...
Aug 18, 2019 The ball mill ball ratio should be judged according to the effective length of the mill, whether it is equipped with roller press, feed size, lining material and structure, and the number of rotation speed. After installing the ball mill, ball mill size gears need to be meshed and the amount of processing is also gradually increasing.
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Ball mill  Wikipedia
A ball mill is a type of grinder used to grind or blend materials for use in mineral dressing processes, paints, pyrotechnics, ceramics, and selective laser sintering.It works on the principle of impact and attrition: size reduction is done by impact as the balls drop from near the top of the shell. A ball mill consists of a hollow cylindrical shell rotating about its axis. T
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Industrial Ball Mills: Steel Ball Mills and Lined Ball ...
Steel Ball Mills Lined Ball Mills. Particle size reduction of materials in a ball mill with the presence of metallic balls or other media dates back to the late 1800’s. The basic construction of a ball mill is a cylindrical container with journals at its axis. The cylinder is filled with grinding media (ceramic or
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What are the differences between ball mill and rod mill ...
Mar 08, 2021 Ball mill and rod mill are suitable for different materials. 1. Selection by material's hardness. Ball mill has a strong adaptation of material, and it is suitable for grinding hard materials, such as slag, iron ore, copper ore, etc. Rod mill is suitable for grinding brittle material, such as rare metals. 2.
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AMIT 135: Lesson 7 Ball Mills Circuits – Mining Mill ...
For overflow ball mills, the charge should not exceed 45% of the mill volume . For grate discharge mills, the charge should occupy about 50% of the mill volume . Bond developed a relationship that can be used to determine the percent charge by volume as a function of the vertical height above the charge, He, and the radius of the mill, R, i.e.,
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Mining comminution – crusher, ball mill, and advanced ...
Feb 20, 2019 Smaller pieces will fall through the rock crusher and make their way directly to the SAG mill or ball mill. Midsized pieces will get processed by each crusher before arriving at the SAG mill. Other pieces well they just get stuck in the crusher.
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Mill power draw models  SAGMILLING.COM
The design of mill liners and SAG mill discharge grates will have a large effect on how efficiently the mill operates and the circuit throughput. All models generally assume that a mill is fitted with "efficient" liners and that the grate design neither limits passage of pebbles (and pulp) nor permits recirculation of pulp back into the mill.
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Mini Sag Ball Mill / Stirred Ball Mill,Grinding Mill For ...
Mini Sag Ball Mill / Stirred Ball Mill , Grinding Mill For Sale In Zimbabwe. Grinding millProduct Description[Introduction]: A high efficiency and energy saving ball mill with rolling bearing [ Capacity ]: Up to 160t/h [Improvement]: Cylindrical energy saving grid ball mill is lined grooved ring plate which increases the contact surface of ball and ore and strengthens the grinding.
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