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The rod mill adopts overflow type and open type discharge does not use grate type discharge The diameter of the rod mill discharge end is larger than that of the same size ball mill When the rod mill speed is lower than the working speed of the same size ball mill the medium in the rod mill is in a sloping working state
Free ConsultationDenver 16 x 32 lab ball mill or rod mill id 58655 16 in dia x 32 in long can be reduced to 16 x 16 can be used as a ball mill or a rod mill wetdry grinding continuous flow mill supplied with ball charge 3 hp drive electric motor gear guards and electrical controls Get Quote Ball End Mills Travers Tool Co Inc.The batch ball and rod mills require a drive roll to rotate the mill the proper grinding speed usually 60 75 of the critical speed for ball mills and 50 to 90 of critical speed for rod mills The batch ball mill should be run between 56 RPM’s and 70 RPM’s The batch rod mill
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.In addition the cylinder speed of the rod mill is lower than that of the ball mill so the grinding medium works in the cascading state 2 Discharging way of ball mill and rod mill The ball mill is commonly divided into grid type ball mill and overflow type ball mill (named by the different discharging structure)
For example a ball mill may be converted into a SAG mill or a rod mill into a ball mill Refurbishment is treated as a turnkey project starting with the removal of your mill and redesign work (when required) and moving on to Flow of materials in rod mills as compared to ball mills.Feed size should generally be 1 8″ for ball mill and 1 2″ for rod mill They are of a sturdy rugged design to handle frequent use with hard materials The batch ball and rod mills require a drive roll to rotate the mills The batch ball mill should be run between 56 RPM and 70 RPM The batch rod mill should be run between 47 RPM and 79 RPM
Comparison Of Ore Hardness Measurements For Bond rod and ball mill work indices are readily converted to pinion energy for rod and ball mills but not for sag mills reproducibility while not studied in this Bonds Rod Mill For Work.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 cyclones
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 150 200 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.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
Recommendation of ball mill and rod mill Ball mill and rod mill are suitable for different materials 1 Selection by material's hardness Ball mill has a strong adaptation of material and it is suitable for grinding hard materials such as slag iron ore copper ore etc Rod mill is suitable for grinding brittle material such as rare metals.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 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.Rods are placed parallel along the length of the rod mill Rods are 150mm shorter than the mill length Breakage occurs from cascading than cateracting The product size distribution is narrower than a ball mill but significantly coarser Most are overflow discharge type Length to diameter= 1 4 to 2 3 Mill length = 7 meters Rod Mill
Dec 30 2012 I would suggest that you build a rod mill if you want to get the material down to a fine power a ball mill usually is used to make bigger item smaller e g big rocks down to little rocks and then the material goes into a rod mills to take it down to a powder.We can refurbish your mill or convert a previously owned unit to meet your specific needs For example a ball mill may be converted into a SAG mill or a rod mill into a ball mill Refurbishment is treated as a turnkey project – starting with the removal of your mill and redesign work (when required) and moving on to manufacturing replacement
The rod mill usually uses 50 100mm diameter steel rod as grinding medium while the ball mill uses steel ball as grinding medium The length of steel rod is 25 50mm shorter than the cylinder and it is usually made of high carbon steel with carbon content of 0 8 – 1 the loading capacity of rod is about 35 – 45 of the effective volume.Jaw and gyratory crushers are used for initial size reduction to convert big rocks into small stones This is generally followed by a cone crusher A combination of rod mill and ball mills are then used if the ore must be ground below 325 mesh (45 μm) Instead of grinding the ore dry slurry is used as feed for rod or ball mills to avoid dusting
Rod mill is roughly as same as the ball mill but there are three distinct differences 1 The rod mill normally uses the steel rod of 50 100mm as the medium and the ball mill uses steel ball as the medium The length of steel rod is 25 to 50mm shorter than the barrel body the load of rod quantity is 35 to 45 of the effective volume of the rod mill.Contact name lily Whatsapp +8613261231497 email [email protected] com Rod mills and ball mills are the two most commonly used equipment in grinding equipment
Apr 02 2012 Ball mills and rod mills are both excellent mining machines for grinding ores into fine powders and particles However many customers are confused when they choosing equipments for grinding due to their similar appearance This paragraph is a brief explanation to the difference of ball mill and rod mill below The calling name of ball mill and rod mill comes from the different grinding.The rod mill adopts overflow type and open type discharge does not use grate type discharge The diameter of the rod mill discharge end is larger than that of the same size ball mill When the rod mill speed is lower than the working speed of the same size ball mill the medium in the rod mill is in a sloping working state
Prominer provides ball mill rod mill grinding system which is widely used in various types of ores' beneficiation electricity cement and chemical industries It can carry out dry or wet pulverizing and can meet demand for sustainable large scale production Our ball mill rod mill grinding solution for different minerals with the features.Sepor’s 16 x 32 continuous ball or rod mill is ideal for pilot plant studies of ore grinding and processing or just regular small scale grinding requirements you may have The mill can be used in a closed circuit with a spiral classifier screen or cyclones or as a single pass grinding mill
Minerial processing small ball mill price best rod mill Ball mills capacity from th advantagesdesigned for long service life minimum maintenance can grind and homogenize mineral ores down to the nano range large volume of processing capacity max feeding size ltmm discharge sizeMm typesoverflow ball mills grate discharge ball mills service hrs quotation custom made parts processing.MH Series Grinding Mills offer a cost effective and easy to operate and maintain grinding solution across the mill lifecycle The MH Series includes a range of SAG ball and rod mills in standardized sizes with a capacity of up to 3 1 MW installed power and is based on
Sep 09 2019 The ratio of barrel length to diameter of the ball mill is small and in most cases the ratio is only slightly greater than 1 In addition according to the China Fote Machinery the barrel speed of the rod mill is lower than the operating speed of the ball mill of the same specification so that the medium inside the machine is in a drop off state.2 Rod mill is suitable for coarse grinding when product granularity is between 1 to 3mm processing capacity of rod mill is bigger than ball mill with same specification 3 Rod mill has certain selective grinding effect because grinding media of rod mill and ores is in line contact Hence it has uniform product granularity and less over
XMB series rod ball mill is an efficient laboratory grinding equipment for wet grinding of ore or other materials Steel balls can be used as grinding medium instead of steel rods In rod grinding operation particle sizes of final product are relatively uniform and ore overgrinding can be eliminated.Jun 03 2020 Traditional taconite pellet making processes use a rod mill to get the rock to the consistency of coarse sand and a ball mill to grind the rock into a fine powder This technology is still in use on Minnesota’s Iron Range by some facilities A taconite plant may have as many as 18 rod mills with one rod alone weighing as much as 500 pounds