amount of feed to rod mill when grinding copper ore

Determination and scale-up of the milling parameters of a high talc containing oxidised copper-cobalt ore using a pear-shaped ball mill

The copper-cobalt ore used in the actual test work was obtained from the feed to the primary mill (run of mine) at the Etoile mine of Rwashi mining, a subsidiary of the Metorex group. The ball mill feed content mass was calculated using following . fd k c

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What is a Rod Mill? (with picture)

A rod mill is an ore grinding mechanism that uses a number of loose steel rods within a rotating drum to provide its attrition or grinding action. An ore charge is added to the drum, and as it rotates, friction between the tumbling rods breaks the ore down into finer particles.

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Grinding Mills — Types, Working Principle & Applications | …

Rod Mills — these rotating mills use rods for grinding media causing friction and attrition between steel rods and ore particles. Rod mills can accept feed up to approximately 50 mm. (2 in.) and ...

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Mill (grinding)

A mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting. Such comminution is an important unit operation in many processes. There are many different types of mills and many types of materials processed in them. Historically mills were powered by hand (e.g., via a hand crank), working animal (e.g ...

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Φ 3.6 ×4.5m Ball mill for a copper mine in Fujian Province

Granularity of ore feed Effective Operating Efficiency Copper mine 800Kw 150t/h 31m 3 19.4r/min 61t ≤20 92% Φ 3.6 ×4.5m Ball ... NHI and other brand Grinding Mill,Ball mill, SAG mill ,AG mill,Rod mill and spare parts for mine customers around world. Process ...

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Copper Production: How Is Copper Made?

 · Copper processing is a complex process that involves many steps as the manufacturer processes the ore from its raw, mined state into a purified form for use in many industries. Copper is typically extracted from oxide and sulfide ores that contain between 0.5 and 2.0% copper.

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Rod Mills

A rod mill uses steel rods as the grinding media in tumbling mills is an efficient means to feed ball mills a product finer than could be made in a crusher but coarser than could be made in a ball mill. The principal use for rod mills, which were invented to make ball mill feed in a wet-grinding rod mill-ball mill circuit. Rod mills came into use in the United States beginning in 1900s and ...

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Gold processing

 · Gold processing - Gold processing - Mining and concentrating: The nature of the ore deposit determines the mining and mineral processing techniques applied. Oxide ore deposits are frequently of such low grade (e.g., 3 to 10 parts per million) that extensive mineral processing cannot economically be justified. In this case they are merely shattered by explosives and then piled into heaps for ...

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Summarize of Rod Mill Theory

Almost the rod mill are using are all overflow rod mill. And open mouth rod mill has been stop being made, only exist in few old plant. It is very important to research the theory of rod mill to improve the capacity and grinding effect. Rod mill is made up by feed part ...

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Rod Mill Grinding Rods

Rod mill grinding rods of all sizes and length. High hardness, range is 45~55HRC Low bending, less than 1.5mm/m Dense microstructure , Bainite +Pearlite+Carbide Low breakage rate, more than 15000 times/ 3.5m Low unit consumption, 40% reduction compared

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