how to differentiate primary ball mill and secondary ball mill

Home how to differentiate primary ball mill and secondary ball mill

• Mill type: SAG, FAG, Rod mill, primary ball mill, secondary ball mill, regrind, …) • Ore feed size (F80,F100) and required product size (P80) determining the grinding mechanism to be favoured • Mill size (diameter, length) • Maximum ball top-up size • Mill rotational speed (rpm, …


PRIMARY BALL MILL CIRCUIT. A flowsheet of the primary ball mill circuit is shown in Figure 1, indicating . the various control loops and process measurements available to be utilized by an expert system. The circuit consists of two identical . primary ball mills running in parallel with an overall processing capacity of 2500 TPD.


The primary grinding circuit products and the trommel undersize from the two secondary ball mills were combined to feed the secondary hydrocyclones. The secondary hydrocyclone underflow material was split to feed the two ball mills in parallel. In the PGM concentrator the primary ball mill was operated in a closed circuit with a screen.


1. SAG mill is the primary tool for grinding. SAG mill is used before the other mills. Ball mill is a secondary, and it is used after the SAG mill. 2. SAG mill breaks the raw material into pieces for the further grinding. Ball mill is used to grind …


ball mill 10 ton per hour cost price. Mar 7,, Sign in to add this video to a playlist Sign in Share More Report, Equipment Cost Guide. A mill is a device that breaks solid materials into smaller pieces by grinding, crushing, or cutting, The discharge die gap a of the grinding machine is used for the ground solid, metric or short ton); W is the work index measured in a laboratory ball mill ...


The difference between autogenous and SAG mills is, it uses balls to grind like ball grinding mill. SAG mills have built-in lifting plates inside the drum. When the drum rotates, the lifting plates lift the materials and the balls to the top and release them back to the surface. It causes the materials to mix at a …


The magnetic products from the LIMS and SLon are sent back to the secondary ball mill for regrinding, and the milled product returns to the primary cyclone classifier. The fine size fraction is about 90% -75 μm and is processed using drum LIMS separators and SLon magnetic separators in series to take out the magnetite and hematite, respectively.


primary and secondary grinding, will have been based on mill speed and shell liner/lifter simulations and, particularly, ball charge volume and ball top size, both of which are dependent upon the contingency applied to the transfer size in the SAG circuit product. Iterations of these para-meters can be performed in some models (e.g., DJB's


This ball mill is typically designed to grind mineral ores and other materials with different hardness, and it is widely used in different fields, such as ore dressing, building material field, chemical industry, etc. Due to the difference of its slurry discharging method, it is divided to two types: grid type ball mill and overflow type ball mill.


Typically R = 8. Rod Mill Charge: Typically 45% of internal volume; 35% – 65% range. Bed porosity typically 40%. Height of bed measured in the same way as ball mills. Bulk density of rods = 6.25 tons/m3. In wet grinding, the solids concentration 1s typically 60% – 75% by mass. A rod in situ and a cutaway of a rod mill interior.


• Mill type: SAG, FAG, Rod mill, primary ball mill, secondary ball mill, regrind, …) • Ore feed size (F80,F100) and required product size (P80) determining the grinding mechanism to be favoured • Mill size (diameter, length) • Maximum ball top-up size • Mill rotational speed (rpm, …


mill. As such, primary ball mills should be designed with the rod mill work index, and single-stage ball mills should be with both the rod mill and ball mill indices. This is because it is common to observe a difference (sometimes significant) between the rod mill and ball mill index values for a given ore type (McKen, Verret, & Williams, 2006). On


SAG mill is the primary tool for grinding. SAG mill is used before the other mills. Ball mill is a secondary, and it is used after the SAG mill. SAG mill breaks the raw material into pieces for the further grinding.


The crusher can be divided into three types according to the particle size of the feed and the final product. Primary crusher ( from 1500-500mm to 350-100mm); secondary crusher ( from 350-100mm to 100-40mm); tertiary crusher ( from 100-40mm to 30-10mm). Crusher also can be classified according to the working principle and mechanical structure.


Difference Between A Mill And A Crusher. Difference between blake jaw crusher and ball mill the difference between crushers and fine crushers 2 the difference between 1 in the production process the crusher also has a name called primary crushing that is to say the crusher is often used as the frontend equipment for the operation and the crusher is usually called secondary crushing


A method of grinding a mineral-containing ore, which includes grinding the mineral-containing ore in a primary milling process and thereafter fine grinding the mineral-containing ore in a secondary ball-mill. A composite grinding medium comprising a mixture of steel balls and pebbles is used in the secondary ball-mill. The pebbles have an average size which is relatively smaller than the ...


primary mill may be operated in open circuit or closed by a classifier, such as a screen or a hydrocyclone. Closing the primary mill may result in an improvement in ... Secondary Milling ball mill ball mill ball mill ball mill single stage SAG mill ball mill ball mill ball mill autogenous grind pebble mill Examples in Australia


further. Typically, the total cost of ownership of the Vertimill® compared with traditional ball mills is 35% less. Potentially every MW of ball mill power saved in a primary or secondary application means a NPV cost savings of US$ 10 million and 80,000 tonnes of carbon saved over a ten year mine life.


difference between bowl mill and tube mill in boiler. difference between tube mill and ball mill - XSM Grinding . We sell difference between tube mill and ball …


What is the difference between a S mill and ball mill? S is an acronym for semiautogenous grinding S mills are autogenous mills that also use grinding balls like a ball mill A S mill is usually a primary or first stage grinder S mills use a ball charge of 8 to 21% [6] [7] The largest S mill is 42′ (128m) in diameter, powered by a 28 MW (38,000 HP) motor [8] A S mill


Rubber Mill Liners are chosen for most Primary, Secondary and Tertiary Ball Mills. And in many cases rubber components are best suited for specific areas in AG and SAG mills. Rubber Mill Liners are extensively used in FGD mills at Power Plants all over the world.


The apparent difference in capacities between grinding mills (listed as being the same size) is due to the fact that there is no uniform method of designating the size of a mill, for example: a 5′ x 5′ Ball Mill has a working diameter of 5′ inside the liners and has 20 per cent more capacity than all other ball mills designated as 5′ x ...


The T80 (is the P80 of the primary ball mill and the F80 to the secondary ball mill circuit) is measured at the pipe departing the primary ball mill. The P80 is the product of the secondary ball mill circuit and is measured at the hydrocyclone overflow. The key: in a closed circuit ball mill circuit, you put a "black box" over the whole ...


Rod Mill Liners Mineral Processing &Amp; Metallurgy. The secondary grind will be a ball mill. in some cases if the work index of the ore is low enough the primary grind maybe a ball mill as well. the difference between primary and secondary grinding mills is in the design of the liners and the size of the grinding media. the primary grind requires a higher lift to get the impact necessary to.