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**Mineral Processing Equipment** : Data: rod mill wi= 130 kwh/t ball mill wi= l 15 kwh/t - A type of mining equipment that can trigger the development and change of the beneficiation technology industry. The main core machines are ball mills, rod mills, flotation machines, magnetic separators, etc.

A ball mill consists of a hollow cylindrical shell rotati. Chat Online; A Method of C alculating Autogenous Semi-Autogenous . mills with the rod mill and ball mill laboratory work indices. Note in Figure. 1 that the rod mill product slope is less than 0.5 due to an extra amount of

AMIT 135: Lesson 7 Ball Mills amp; Circuits Mining Mill. Mill Throughput Capacity Austin et al. 1984 Austin et al. concluded that a single expression for capacity is not adequate for all mills. Equations for mill sizes less than 3.81meters in diameter and greater than 3.81meters were proposed: th D 3.81 m t

Aug 01 2011 The rod mill test gave RWilab of 14.5 kWh t −1 and a ball mill work index BWilab of 13.8 kWh t −1. Accepting that the rod mill work index applies to size reduction of the circuit feed down to the rod mill test product P 80 of 1050 m and that the ball mill work index applies from this size to the circuit product size calculate the ...

Ball Mill Size Excel Calculation bcsg. ball mill media calculation in excel . calculation of ball mill residence time Marine Taxis. on a century or more ball mill systems were used for all three grinding stages calculations the reduction ratios of rod and ball mills were 64.65 and 1.15 which These vertical mills were then replaced with the ...

Ball-mill power draw is used for the ball-mill scale up. Comparisons with the ... kwhs.t. w 0 5 10 15 20 25 30 35 40 45 50 55 60 65 Specific grinding energy w from the proposed model kwhs.t. ... Stamboltzis and Tsakalakis 1993 that the power drawn from tumbling mills rod ballmills - etc. is given from the general equation: P k f L ...

Example SAG-Ball Mill Circuit WI Efficiency Calculation • SAG-ball circuit F80 165000 um P80 125 um W 14.6 kWht Wlo 14.6 10 SQRT 125 – 10 SQRT 165000 16.8 kWht • Bond Test WI’s kWht: Crushing:16.0 Rod Mill: 14.5 Ball Mill: 13.8 • Bond Standard Circuit Work Index:

Jan 01 1991 OOO0 000000 I I I IIIll 0.1 0oA 00 I lllIllllI lllilll 1 10 Product fineness Pg0-mm Fig.3 Comparison of the sizing data between the rod and the ball mill products under 2 and 4 minutes grinding time o zx -- 7-0 10-0 and 16-0 mm mill feed size .2.0 N15 r tJ 0 1.o 1.8 0 0 1.3 - A oOOOo goO 00000 0 OA Z 0 0 0 - 16-Omm L ...

Jun 01 2009 Steel media consumption for ball mill kgt 0.273: Average specific energy for ball mill kWht 5.81: Average specific energy for SAG mill kWht 8.67: Ball mill discharge pump kWht 0.04: Thickener underflow pump kWht 0.01: SAG discharge pump kWht 0.13: Pebble crusher kWht 0.15

MAN Y.T. 2002 Why is the Bond Ball Mill Grindability Test done th e way it is done? European journal of mineral processing and environmental protection 2 34-39.

Sep 01 2004 Thus its length should be: L 1.5 x 4.07 6.1 m Thus for the above defined size reduction two ball mills D x L 4.07 m x 6.1 m are required which will operate under the conditions proposed by Denver p 4.5 tlm3ji 0.45 andJc 0.75 or 75 But for the same size reduction and taking into account the various corrections the Bond ...

The ball mill motor power requirement calculated above as 1400 HP is the power that must be applied at the mill drive in order to grind the tonnage of feed from one size distribution. The following shows how the size or select the matching mill required to draw this power

The ball mill work index laboratory test is conducted by grinding an ore sample prepared to 100 passing 3.36 mm 6 mesh to product size in the range of 45-150 m 325-100 mesh thus determining the ball mill work index Wi B or BWi. Ball Mill Work Index Calculation - ra-warnecke.de. Ball Mill

The ball mill work index laboratory test is conducted by grinding an ore sample prepared to 100 passing 3.36 mm 6 mesh to product size in the range of 45-150 m 325-100 mesh thus determining the ball mill work index Wi B or BWi. The work index calculations across a narrow size range are conducted using the appropriate laboratory work

With one 22 x 36ft 8000 kW ball mill eachone. The third grinding line Line 3 consists of one 40x 22ft 21000 kW SAG mill working with two 26 x 38ft 15500 kW each ball mills the SAG mill currently being the largest of its kind in the worldSAG mill trommel .

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