Wet rod mill is mainly used for coarse grinding It is configured for fine and coarse grinding in the first stage open-circuit grinding , Applicable materials:quartz, iron ore, copper ore, gold ore, glass, construction waste, cement clinker, etc , The continuous feeding of ores can create considerable pressure to make ores move from feed .
Rod Mill Copper sulfide ore Forth flotation process introduction Copper Mining and Processing: Processing of Copper Ores The most common types of ore, copper oxide and copper sulfide, undergo two which would otherwise not be economical to send through a milling process
In the second stage grinding process, the rod mill is generally used as the first stage grinding equipment, which has large production capacity and high efficiency In the treatment of soft or not too hard ore, rod mill can instead the short head cone crusher for fine crushing, which is not only simple in configuration, but also low in cost
Grinding mill process design Choosing an appropriate grinding circuit configuration depends on your ore characteristics and mine plan Outotec has extensive knowledge of comminution technologies and processes to ensure we provide the optimal solution for your needs
For this study, materials (copper sulphide ore) were sampled from the SAG mill feed in Sungun copper concentrator plant The density of ore was 28 g/cm 3The ore was crushed in a laboratory scale jaw crusher and roll crusher successively to prepare materials for ball mill grinding tests
professional design copper rod mill; Rod mills, how they function - Mine EngineerCom The heavier rods acting upon the lifters and liners result in greater wear on the mill liners Rod mills normally carry 35 to 65% rod charge by volume
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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 The feed to ball mills (dry basis) is typically 75 vol-% ore and 25% steel The ball mill is operated in closed circuit with a particle-size measurement device and size-control cyclon
Overcharging results in poor grinding and losses due to abrasion of rods and liners Undercharging also promotes more abrasion of the rods The height (or depth) of charge is measured in the same manner as for ball mill The size of feed particles to a rod mill is coarser than for a ball mill The usual feed size ranges from 6 to 25 mm
The primarily used equipment in crushing are-jaw crushers, gyratory crushers and cone crushers whereas rod mills and ball mills, closed circuited with a classifier unit, are generally employed for grinding purposes in a mineral processing plant Crushing is a dry process whereas grinding is generally performed wet and hence is more energy .
Xinhai grinding mill has excellent energy saving ability, Xinhai, as ball mill manudactures, the energy-saving ball mill up to 30%, great ball mill working principle, which greatly reduces the cost of the ore ,
For example, assume that raw ore is a two component system comprised of a valued mineral and host rock having relative densities of 630 and 265, respectively The amount of valued mineral is 30% of the total oreTotal Solid Mass, M: Mineral + Host Rock – 30 + ,
YEARS OF OPERATION OF THE SAG/BALL MILL GRINDING CIRCUIT AT PHU KHAM COPPER, GOLD OPERATION IN LAOS , ore from the stockpile to the SAG mill feed conveyor The discharge from the SAG mill is screened by a , Design Bond Rod Mill WI (closing 1180 micron) Refer Table 2 Circuit Fresh Feed Rate - Nominal 1,500 tph .
Thus, quantitatively, less material can progress through the voids in the rod mill grinding media than in the ball mill, and the path of the material is more confined This grinding action restricts the volume of feed which passes through the mill, without causing an overload condition
crushed ore (-13 mm) from the fine ore stockpile onto the rod mills feed conveyor The grinding circuit consists of two rod and ball mills followed by pebble mills The existing mill capacity is 20,000 t/d with a reported availability of 92% Mount Polley concentrates are trucked to facilities at the Port of Vancouver.
The Steel Head Rod Mill (sometimes call a bar mill) gives the ore dressing engineer a very wide choice in grinding designHe can easily secure a standard Steel Head Rod Mill suited to his particular problem The successful operation of any grinding unit is largely ,
Copper/Molybdenum Ore The figure above is a simplified flow sheet showing the basic steps involved in a copper mill producing the byproduct molybdenum The crushed copper ore (containing, for example, 075% Cu and 0015% Mo) is fed to the grinding circuit where water is added and the ore is ,
fed in ratio to the ore feed mass The rod mill discharge is pumped, without any further , the amount of slurry reporting as fresh feed to the second milling circuit will increase With the increase in feed material to the second milling , Grinding control strategy on the conventional milling circuit With the increase in ratio set point, a .
Rod Mill, Rod Ball Mill, Rod Mill Process, Rod Mill , 6 Rod mills accept feed up to about 50 mm (2 in) and produce a product in the size range of 3000 to 270 mm (4 to 35 mesh) Rod mill is widely applied in metal and nonmetal mine, water conservancy, glass and construction materials industries, mainly suitable for grinding various ores .
The design characteristics of industrial rod mills are similar to ball mills Most rod mills used in mineral processing are of the overflow discharge type as illustrated in Figure 72a Centre peripheral (Figure 72c) and end peripheral discharge mills (Figure 81) are also in useThe feed end is generally fitted with spout feeders, scoop feeders, double scoop feeders or drum feeders
At Britannia the copper ore contained just over 1% copper (though in the early years it was the ball mills were about the size and weight of a shot put ball One chemical (called a 'frothing agent') was added to create a frothy mass of tailings high in silica values ,
COPPER MOUNTAIN: OVERVIEW ON THE GRINDING MILLS AND THEIR DUAL PINION MILL DRIVES ABSTRACT This paper will first give a short overview of the Copper Mountain project in British Columbia, which just has started commercial operation earlier this year The grinding ,
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The Bond rod mill grindability test is a widely used tool to estimate the response of ores to rod milling However, the mass of ore required to conduct the test, which can typically vary from .
Meanwhile sulfide copper ores require crushing, screening, grinding, beneficiation (concentration) then smelting Some equipment that is best used throughout recovery are primary gyratory and cone crushers, high pressure grinding mills, autogeneous mills, stirred mills, flotation cells, magnetic separators and others depending on the operation
Ore Grinding Mills are used for the fine grinding as the last step in the reduction of an ore prior to concentration (gravity or flotation) or cyanidationPractice varies, depending upon the type of ore and the amount of reduction required In addition, some of the older properties continue with methods that perhaps are not considered the best in light of recent improvements but that cannot be .
Grind coarse feed material with a reliable Rod Mill that won't over-grind If you are in need of an application for coarse materials like limestone, potash, coal, phosphate and bauxite, you may be looking for a solutions like Rod Mills Rod Mills are particularly useful, if you run a low tonnage operation and are looking for coarse product
Jun 20, 2015· If 75 percent of critical speed is considered desirable for efficient grinding in a 24 meter (8 foot) diameter mill, then the same will be true for a 50 meter (15½ foot) diameter mill
What are the characteristics of the rod mill? The rod mill is generally used for rough grinding, ore particle size of 20-30 mm, the product particle size of 3-0 mm Characteristics of the rod mill is not to stick a point to grind ore to grind the ore, but to stick full-length, magnetite sand separator manufacturer so ,
Illustration depicting processing of copper ore Top: Sulfide , The next step is to feed the crushed ore into a wet grinding process in tumbling mills , Grinding – Rod Mills (Large cylinders similar to cement mixer) Get Price grinding process of copper refining, fine ore powder Aug 2, 2016 , Copper Ore Grinding Mill grinding .