calculate a mill's operating work index. Use this online formula to calculate a Ball Mill, Rod Mill or SAG Mill Operating Work Index. Based on Fred Bond's work you can estimate the energy used into your grinding circuit. This is the most accurate and informative method, but much of the data necessary for its application is not yet available.
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 …
SAG Mill Comminution (SMC) Test®. The SMC Test® is conducted on a single size range which is typically -31.5 mm +26.5 mm, hence the sample requirements are less than drop weight …
W is the work index measured in a laboratory ball mill (kilowatt-hours per metric or short ton) ... A SAG mill with a 44' (13.4m) diameter and a power of 35 MW (47,000 HP) has been designed. Attrition between grinding balls and ore …
standard Bond crushing, and rod mill work indices, abrasion indices and by Dawson for Bond Ball Mill Work Index tests using crushed feed, and Standard Autogenous Grinding Design (SAGDesign) Tests, patented by Outokumpu. (See reference 8 below). The comparison of these results gives context to how the various measurements relate to each
AG Mill and SAG Mill. Feeding size: ≤25mm. Capacity: 0.65-615t/h. Output size: 0.074-0.89mm. Applications: It is commonly used in the mineral processing industry and ferrous and non-ferrous metal ore and nonmetal ore processing …
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...
May 20, 2013 ... how does a sag mill work, sag aftra ... The world widely relies on the ball mill work index for the design and analysis of ball mill circuits, ... Inquire Now; bond work index for an ultrafine mill minemining.com. 4.7/5· Inquire Now; how does a sag mill work batchingplant.ga. May 20, 2013 ... how does a sag mill work, sag ...
Use this online formula to calculate a Ball Mill, Rod Mill or SAG Mill Operating Work Index. Based on Fred Bond's work you can estimate the energy used into your grinding …
WiRM: The calculated work index (SAGMILLING.COM uses only metric units; if the laboratory reported work index in "short ton" units, multiply that value by 1.1023 and enter the result). Extra field available for modelling synthetic indicates whether this is a real test result, or just a synthetic one that should only be used for modelling.
Ball mill work index adjustment Perform the laboratory program on a one or two representative samples to determine the Hukki Exponent (-a). Enter this (a) value (without the minus sign) into the Circuit Settings of a Bond …
This is because work index frequently changes as a function of the product size in comminution. If target grind size during a project is changed, or if the test is run at the wrong …
Rely on our proven track record of AG and SAG Mill superiority. Since the early 1980s, we have been designing and manufacturing Semi Autogenous Mill (SAG Mill) and Autogenous Mill (AG Mill) under the Fuller-Traylor brand. Semi-autogenous grinding uses a minimal ball charge in the range of 6-15% while autogenous grinding uses ore only.
Hey, I just posted some screen shots. I'm just trying to auto craft silicon when below 3000. I should have taken a screenshot showing it but there is 0 silicon in the system. I can request silicon with no problems and it works. I can also cycle through the redstone mode on the crafter and that makes the sag mill come on for a second.
Morrell Mi (SMC) single-Stage SAG Mill Model. This is a SAG or AG mill model that estimates the specific energy consumption (E SAG) using the equations of Morrell (2004). Testwork Required. The SMC™ test, stored in the "DWT" testwork table (SMC is a Drop Weight Test). Bond ball mill work index. The method requires all the parameters of the ...
This is because work index frequently changes as a function of the product size in comminution. If target grind size during a project is changed, or if the test is run at the wrong product size, then it is necessarily to provide a correction. The goal of this work is to create an equation to adjust a Bond ball mill work index from one P 80 basis
How Does A Sag Mill Work | Crusher Mills, Cone Crusher, Jaw …. Bond Ball Mill Work Index, kWh/t SAG kWh/t from 152mm to T80 1.7mm Up to 2007 2008 Data …. sag mill gmd how does it work - BINQ Mining. Nov 07, 2012 Mill (grinding) – Wikipedia, the free encyclopedia. Wi is the work index measured in a laboratory ball mill …
SAG Mill Circuit Example — Gold Processing SAG mill circuit example for gold processing [image: (135-6-3)] AG/SAG Mill. AG/SAG mills are normally used to grind run-off-mine ore or primary crusher product. Wet grinding in an AG/SAG mill is accomplished in a slurry of 50 to 80 percent solids. 2D and 3D simulations of particles in a SAG Mill
SAG Mill Work Index – Short for Semi-Autogenous Grinding – (A x b) – The SAG Mill Work Index is a measure of the resistance of material to grinding in a SAG mill.
SAG Mill Operating Work Index - Grinding & Classification ... 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 an 80% passing size of 2.1mm. How do i calculate the Operating Work Index for this mill if the feed tonnage rate is 1200t/h?
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 ...
Ball Mill Work Index 11.1 metric @ P 80 88 µm Primary Grind P 80 43 µm ... Ball Mill Work Index 12.2 metric Feed to SAG Mill 80% passing 150 mm Product from SAG Mill 80% passing 1000 µm SAG Mill Pinion Power 1155 kW SAG Mill Motor Size 1268 kW (1700 HP) SAG Mill Size (Diameter) 5.791 m (19 ft)
What the SAGMILLING.COM software does (Bond Wi version) The laboratory ball mill work index result is read from the database (P 80, P 100, F 80, and gpr; if multiple results exist with a particular sample name, then the averages of …
SAG mill (4% ball charge, 90% Nc) A cross between AG and SAG for average competency, abrasive ores. Typically operated in RSA on Witwatersrand Gold Ore Driefontein (Underground), Kloof, Jacobina 6 SAG mill with recycle crusher (8 – 15% ball charge) Competent ores, better suited to coarse grind sizes. High aspect mills are recommended to ...
BOND'S WORK INDEX: WHAT IT IS AND WHAT IT ISN'T *Alex Doll1 and Berge Simonian2 1Alex G Doll Consulting Ltd. PO Box 1236 Logan Lake, BC – V0K 1W0 ... It is incorrect to say, for example, "the ball mill work index is 13 kWh/t and the SAG mill SEC is 5 kWh/t, so the total circuit energy is 18 kWh/t." This example is a real discussion that ...
Common convention generally refers to high-aspect ratio mills as SAG mills (with diameter to effective grinding length ratios of 3:1 to 1:1), low-aspect ratio mills (generally, a mill with a significantly longer length than …
identified the ratio of Bond rod mill Work Index and ball mill Work Index as being sag mill work index greatermscfcorg sag mill work index CIM . More Info. Grinding Mill Computer Model The AusIMM. The ball mill designs also follow the Bond/Rowlings method with comparison with rod milling work index kWh/t For SAG mills the equation becomes .
Blank spreadsheet that is pre-populated with the field names needed to import laboratory test results into the SAGMILLING.COM circuit model testwork database (subscription required). Enter your test results, one per row, …
SAG Mill Operating Work Index (1 reply) P PERTHIAS 7 years ago A SAG mill operates with a 10000 hp motor. Typical power draw is 80% of maximum. The 80% passing feed size to the …