ball mills vs rod mills gringing ore in uzbekistan

Sep 09 2019 · rod grinders are commonly used as grinding media with steel rods with a diameter of 50100mm while ball mills use steel balls as grinding mediums and the differences in grinding bodies are the main differences between the two

Grinding medium of rod mill The rod of diameter from 50 to 100 mm is often used as the grinding medium and the filling rate of rod mill is 35 to 45 while filling rate of ball mill is 40 to 50 Rod is mainly made of several materials A High carbon steel

Compared with the ball mill the rod mill adopts advanced controllable feeding and discharging technology and can use the appropriate grinding body according to the grinding material The point contact of the traditional ball mill can be changed into line contact which can make the discharge granularity more uniform and the output is higher

Rod mill is a type of grinding mill whose grinding media is steel bar while ball mill is steel ball 1 Rod mill are usually applied to grinding the wsn ore and rare metal in the reselection or magneticoredressing plant in order to avoid the damage caused by the over crushing 2 In the two stage grinding process if it requires grinding the ore from 206mm to 13mm in the first stage rod mill is the best

Recommendation of ball mill and rod mill Ball mill and rod mill are suitable for different materials 1 The daily maintenance requires constant addition of a certain amount of steel balls while the rod mill only needs to be inspected and replaced in a period of product of the rod mill is rough but the particle size is uniform coarse particles and slime are less the over

When the mill is rotated without feed or with very fine feed the rods are in parallel alignment and in contact with one another for their full length New feed entering at one end of the mill causes the rod charge to spread at that end This produces a series of wedge shaped slots tapering toward the discharge end The tumbling and rolling rods expend most of their crushing force on the

Oleg D Neikov in Handbook of NonFerrous Metal Powders 2009 Tumbling Ball Mills Tumbling ball mills or ball mills are most widely used in both wet and dry systems in batch and continuous operations and on a small and large scale Grinding elements in ball mills travel at different velocities Therefore collision force direction and kinetic energy between two or more elements vary

Our Rod Mills are available in multiple diameters to fit the needs of your operation Grinding primarily by attrition Rod Mills require comparatively low levels of power to operate Rod Mills can be either wet or dry designs Once replaced by AG and SAG mills Rod Mills have had a

The mill product can either be finished size ready for processing or an intermediate size ready for final grinding in a rod mill ball mill or pebble mill AGSAG mills can accomplish the same size reduction work as two or three stages of crushing and screening a rod mill and some or all of the work of a ball mill

Rod Mills How They Function Mine 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 14 to 16

Sep 09 2019 · The process characteristics of the rod mill are the rougher product but the grain size is uniform the coarse particles and the mineral mud are less the overcrushing is lighter and the particle size characteristics of the rod mill product are related to the condition of the rod grinding ore The performance of the ball mill is characterized

This kind of rod mill can be used for wet The above is the main content of this The ratio of the length to the diameter of the cylinder is Because the steel ball is in point contact with the ore the grinding products are of high fineness and the particle size of the products is relatively fine which is prone to over grinding so ball mill is

Ball Mills vs Rod Mills Rod mill A rotating drum causes friction and attrition between steel rods and ore particles citation needed But note that the term rod mill is also used as a synonym for a slitting mill which makes rods of iron or other metal Rod mills are less common than ball mills for grinding minerals

Aug 19 2019 · HPGR wear vs conventional mills Ball SAG and rod mills all require their grinding media to be regularly replaced unlike a HPGR High Pressure Grinding Rolls have lower maintenance overheads than ball and rod mills primarily because the grinding media in conventional mills needs to be replaced on a more regular basis

When the mill is rotated without feed or with very fine feed the rods are in parallel alignment and in contact with one another for their full length New feed entering at one end of the mill causes the rod charge to spread at that end This produces a series of wedge shaped slots tapering toward the discharge end The tumbling and rolling rods expend most of their crushing force on the

Jun 11 2019 · In the order you have listed a ball mill can fine grind down to 400 mesh if needed a rod mill will efficiently grind to 150200 mesh range and a roll mill can do a 100 mesh The ball and rod mills are similar in appearence as a large rotating lined cylindrical tube filled with either metal balls or long rods used as the grinding medium

The Essa ball and rod mill range includes Essa BM Series Laboratory Ball Mills – ideal for producing finer particles Available in 63 L 123 L and 21 L barrel volumes Essa RM Series Laboratory Rod Mills – suitable for larger and more coarse materials Available in 78 L

Nov 13 2019 · Gold ore ball mill 【Capacity】 065130 th 【Feeding size】 ≤20≤25mm 【Discharge size】 0074089mm 【Grinding ball】 15338t 【Application】 gold ore and other ores grinding 【Advantages】 Rolling bearing has little friction and low consumption Reasonable sealing low failure Little dust low noise energysaving Special design good grinding effect 60s manual

Inventory ID 6CHM01 3 Units UNUSED FLSMIDTH 26’ x 43 Dual Pinion Ball Mill with 2 ABB 9000 kW 12069 HP Motors w ABB VFD for Total Power of 18000 kW 24138 HP