Rod Mills, How Do They Work? - Mine Rod Mills, How Do They Work? Rod mills are very similar to ball mills, except they use long rods for grinding media. The rods grind the ore by tumbling within the the mill, similar to the grinding balls in a ball mill. To prevent the conditions leading to rod charge tangling, the length to diameter ratio is maintained at 1.4 to 1.6. Rod mills accept feed up to about 50 mm (2 in.) and produce a O. I. SKARIN N. O. TIKHONOV CALCULATION OF THE REQUIRED CALCULATION OF THE REQUIRED SEMIAUTOGENOUS MILL POWER BASED ON THE BOND WORK INDEXES O. I. SKARIN, the existing techniques of sizing SAG mill power, Bond work in-dexes and their applicability to calculating autogenous/semiau-togenous mills. Finally, the authors give a comparative analysis of the results obtained using the described method and in the joint commercial rod - LEO: Übersetzung im Englisch ⇔ Deutsch WörterbuchLernen Sie die Übersetzung für 'rod' in LEOs Englisch ⇔ Deutsch Wörterbuch. Mit Flexionstabellen der verschiedenen Fälle und Zeiten Aussprache und relevante Diskussionen Kostenloser Vokabeltrainer

Bond Standard Circuit Work Index: Assume the rod mill Work Index of 9.5 applies from the actual rod mill feed sizeof 19,300 mµ (although some of this work might ideally be done by crushers to achieve a rod mill F80 of 16,000 m) to a rod µ mill (circuit) product size of 1,000 µm. W1 = 9.5 x [(10 / √ 1,000) – (10 / √ 19,300)] = 2.32 kWh/tA Method of C alculating Autogenous/ Semi-Autogenous recommended that the rod mill work index is used for the bond Fo, the optimum feed size calculation, and the highest 1 10 100 1 10 100 1000 10000 100000 Cum % Passing microns WORSLEY ALUMINA TEST 550 14 X 20 ROD MILL AND 14 X 23 BALL MILL CIRCUIT 30 AUG 04 ROD MILL DISCHARGE BALL MILL DISCHARGE DSM UNDERSIZE CIRCUIT FEED Corrected rod mill F80 1700 microns devoid of minus 200u. 11TH MILL Rod Mill - an overview | ScienceDirect Topics3.4.7 Bond rod mill standard test. Standard conditions for determining the work index of rod mills under laboratory conditions are: mill size = 305 mm (internal diameter) × 610 mm (internal length) with wave type lining. material dry mineral. size − reduced to < 13,200 μm. quantity − 1250 cm 3 (tapped down to give a reproducible bulk density) mill charge-steel rods − 6 × 38.1 mm

Rod Mill Power Draft. Rod mill power is dependent on mill capacity and work index. Mill power increases with: Increasing rod charge; Increasing mill speed; Increasing mill length. Rowland and Kjos (1980) provided an expression to quantify power draw at the pinion shaft per unit mass of rods: P↓M / M↓R = 1.752 D↑0.33 (6.3 – 5.4J↓R) Φ Testwork: Bond rod mill work index - The Bond rod mill work index is not as common as the Bond ball mill work index, and there are two different variations on the mill apparatus.The SAGMILLING.COM models expect a mill with a "wave liner", and is not compatible with mills using "smooth liners".THE KINETICS OF THE INDUSTRIAL ROD MILLTHE KINETICS OF THE INDUSTRIAL ROD MILL Nedeljko Magdalinovi 1, Milan Trumi 2, Sr ana Magdalinovi 3, Maja Trumi 2ccð c c 1 Timo ke divizije 18/12, 19210 Bor, Serbia

23.12.2013· Rod mill is similar to ball mills but it uses long rods for grinding media. Autogenous mill is a self-grinding mill which is used in breakage of larger rocks. SAG (Semi-Autogenous Grinding) mill is an autogenous mill which uses grinding balls, it is similar to ball mill but has large diameter and short length. Vertical mill is used in grinding material at smaller particle sizes, which is used Bond Rod Mill Index Test | JKTechMeasuring ore grindability in rod mills. The Bond Rod Mill Work Index is a measure of the resistance of the material to grinding in a rod mill. It can be used to determine the grinding power required for a given throughput of material under rod mill grinding conditions. It is a 'locked cycle' test conducted in closed circuit with a laboratory screen. Sample Requirements: A minimum of 20 kg of Bond Work Index Tests - Grinding Solutions LtdBond Rod Mill Grindability Test. Grinding Solutions can carry out Bond Rod Mill Work Index tests to determine the energy requirements for milling ore in a rod mill. The test requires a minimum of 20kg of -12.5mm material. Closing screen sizes typically range from 4.75mm to 212µm. Abrasion Index Test

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