ball mill vs rod mill

  • Rod Mill Definition of Rod Mill by Merriam-Webster

    Rod mill definition isa mill that produces rods of steel or other metal. Rod mills are less common than ball mills for grinding minerals. The rods used in the mill usually a high-carbon steel can vary in both the length and the diameter. However the smaller the rods the larger is the total surface area and hence the greater the grinding efficiency.

  • Mill (grinding)Wikipedia

    Rod mills are less common than ball mills for grinding minerals. The rods used in the mill usually a high-carbon steel can vary in both the length and the diameter. However the smaller the rods the larger is the total surface area and hence the greater the grinding efficiency. Rod mill definition isa mill that produces rods of steel or other metal.

  • the Difference of Rod Mill and Ball Millore processing

    Rod mill and ball mill may be only one word difference in the name but in fact there was a striking internal differences. Rod mill as the name suggests is to rely on rod bars for the material grinding and wet overflow is a generally used material way.Rod mill is generally used as a grinding equipment in the artificial stone sand (1) Rod mill is usually selected in order to prevent over grinding in gravity or magnetic separation plant of tungsten tin and other rare metals mine (2) In two stages grinding the capacity of rod mill machine used in the first stage grinding is larger than ball mill s (3) In some cases rod mill

  • Technical Performance and Application of Ball Mill and Rod

    Rod mill. Unlike the ball mill the grinding medium in the rod mill is a steel rod so the working characteristics are significantly different from those of the ball mill. Since the steel balls are in point contact the steel rods are in line contact. Difference between ball mill rod mill. Difference between sag mill vs ball mill mech4study oct 12 2017 today we will learn about difference between sag mill vs ball mill a mill is a machine by which solid or hard materials are broken into smaller

  • PulverizerWikipedia

    The ball and tube mills are low-speed machines that grind the coal with steel balls in a rotating horizontal cylinder. Due to its shape it is called a tube mill and due to use of grinding balls for crushing it is called a ball mill or both terms as a ball tube mill. These mills product size needed to be adjusted. 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 paper is clearly a part of the meaningfulness of the data presented.

  • What is Ball Mill How Many Types of Ball Mills M C

    (1) Types on the Basis of Cylinder. 1. Short Cylinder Ball Mill The ball mill with the cylinder length (L) less than 2 times of the cylinder diameter i.e. the ball mill with L ≤ 2D is short cylinder ball mill which is usually of single bin structure mainly used for rough grinding or primary grinding operation and can realize the wide use of 2-3 ball mills in series. Ball mills. Ball mill (Fig 1) is same kind of mill as rod mill except that it is filled with balls instead of rods. Because of balls have greater ratio of surface area than rods they are more suitable for fine grinding. Balls are also lighter so the kinetic energy of a single dropping ball is smaller than a rod.

  • What is the difference between the ball mill and rod mill

    Dec 18 2019 · At present the most widely used grinding equipment in the dressing plant is ball mill and rod mill. As far as the working principle is concerned both ball mill and rod millare the same. The grinding medium (steel ball or steel rod) installed in Inventory ID 6C-HM02. UNUSED FL 22 x 41 6" Dual Pinion Regrind Ball Mill with 2 ABB 5 500 kW (7 375 HP) Drives for Total Power of 11 000 kW (14 750 HP)

  • Ball Mill Vs Rod Milltwo-do

    Ball Mill Vs Rod Mill. gorilla mill phenomased on the original 5 flute gorilla mill the phenom for high temp alloys features geometric enhancements that make it uniquely suited for difficult to machine materials including inconel waspaloy hastelloy rene stellite 17-4 ss 15-5 ss 13-8 ss and titanium. 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 w-sn ore and rare metal in the reselection or magneticore-dressing 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 20-6mm to 1-3mm in the first stage rod

  • Which one is the best ball mill or rod mill

    In the ball mill commonly used have the lattice ball mill and overflow ball mill (named from different drainage structure) and the rod mill does not use the grid plate drainore only overflow type and opening type two kinds the diameter of the hollow shaft at the drainage and end is generally larger than the same specification ball mill Jun 20 2019 · For both wet and dry ball mills the ball mill is charged to approximately 33 with balls (range 30-45 ). Pulp (crushed ore and water) fills another 15 of the drum s volume so that the total

  • Grinding millsfor mining and minerals processingMetso

    has experience of over 8 000 grinding mills globally including manufacturing and delivering the largest SAG/AG mills in the world. Our experts welcome the opportunity to assist you with circuit and circuit control design as well as start-up operation and optimization of your mill. The ball and tube mills are low-speed machines that grind the coal with steel balls in a rotating horizontal cylinder. Due to its shape it is called a tube mill and due to use of grinding balls for crushing it is called a ball mill or both terms as a ball tube mill. These mills are also designated as

  • Ball Mill VS Rod MillXinhai

    Rod mill are used widely in plant and are compared by us. This text will analyze the two equipment in some aspect. The grinding theory. Though used different medium (steel ball and steel rod are contained in ball mill and rod mill) the working theory of ball mill and rod mill Lab Sand Mill. Lab Rod Mill. Lab Rapid Ball Mill. Lab Glove Box / Operation Box. Centrifuge Series. Vibrating Screen Series. CONTACT. Tel . Fax . Mobile . Email1 mills lab-mills. Lab Ball Mills Mill Jars/Pots/Tanks Ball Mill Medias

  • 7 Differences Between Ball Mill and Rod MillXinhai

    3. Grinding medium of ball mill and rod mill. The rod mill usually adopts the steel bar with a diameter of 50-100mm as the grinding medium while the ball mill often uses steel ball as the grinding medium. The difference on grinding medium is the main difference between the ball mill and rod mill. Rod mills have an industrial yield that is less than that of a ball mill which explains the fact that balls have a much larger grinding surface than rods. The power needed to operate a rod mill could exceed 30 of the power used in a ball mill. When they are worn rods must not stretch but break in rather small pieces so that they can exit

  • AMIT 135 Lesson 8 Rod MillsMining Mill Operator Training

    Introduction Rod mill. Unlike the ball mill the grinding medium in the rod mill is a steel rod so the working characteristics are significantly different from those of the ball mill. Since the steel balls are in point contact the steel rods are in line contact.

  • Ball vs Rod vs Roll MillsGold Refining Forum

    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. Oct 19 2006 · What it is the optimun speed for a ball mill posted in Pyrotechnics I have done a ball mill recenly finished but the motor has too rpms is too fast for use in a ball mill (the pvc cylinder that i use left of the shafts). With the motor i will use a 40 mm pulley because i have a 50 mm driven pulley in one of my two shafts. In the other side of my shafts there are

  • Ball and Rod MillPK Mining

    Rod mills are grinding machine which employ high carbon steel or special steel rods of nearly the same length as that of the drum in place of steel balls in ball mills. Rod mill products are generally coarser than those produced in a ball mill and rod mills are well suited to handle coarser feed and to control the top size of the product. The geometry of a mill with conical ends is shown in Figure 8.6. The total volume inside the mill is given by Vm 4 D2 mL 1 2(Lc L) L 1 (Dt/Dm) 3 1 Dt/Dm (8.16) The density of the charge must account for all of the material in the mill including the media which may be steel balls in a ball mill

  • (PDF) A comparison of wear rates of ball mill grinding media

    A comparison of wear rates of ball mill grinding media.pdf Journal of Mining and Metallurgy 52 A (1) (2016 ) 110 # Corresponding author alex.jankovic Dec 06 2015 · Most mills used in mining rely on impact to breakdown rock to a suitable size for downstream processing. The impact can be rock on rock such as in an Autogenous Grinding (AG) mill rock and a small ball charge ( 10 ) used in Semi Autogenous Grind

  • Rod Mill Rod Mill Manufacturers Rod Mill Working

    (1) Rod mill is usually selected in order to prevent over grinding in gravity or magnetic separation plant of tungsten tin and other rare metals mine (2) In two stages grinding the capacity of rod mill machine used in the first stage grinding is larger than ball mill s (3) In some cases rod mill Feb 13 2017 · Ball-Rod Mills based on 4″ liners and capacity varying as 2.6 power of mill diameter on the 5′ size give 20 per cent increased capacity on the 4′ size 25 per cent and on the 3′ size 28 per cent. This fact should be carefully kept in mind when determining the capacity of a Steel- Head Ball-Rod Mill

  • ball mill vs rod millkeithkirsten

    The design of a rod mill for a potash processing plant at Boulby UK is described including operating principals sizings and other 5 Rod Mills vs Ball Mills . Chat Now Wear Resistant Mill Scrubber LiningsTrelleborg Rod mills have an industrial yield that is less than that of a ball mill which explains the fact that balls have a much larger grinding surface than rods. The power needed to operate a rod mill could exceed 30 of the power used in a ball mill. When they are worn rods must not stretch but break in rather small pieces so that they can exit

  • Bond Work Index TestsGrinding Solutions Ltd

    Grinding Solutions can carry out Bond Rod Mill Work Index tests to determine the energy requirements for milling ore in a rod mill. The test requires a minimum of 20kg of -12.5mm material. Closing screen sizes typically range from 4.75mm to 212µm. A comparison of wear rates of ball mill grinding media.pdf Journal of Mining and Metallurgy 52 A (1) (2016 ) 110 # Corresponding author alex.jankovic

  • A Method of C alculating Autogenous/ Semi-Autogenous

    No 1 rod mill/ball mill circuit was operating very effi ciently when comparing the combined operating work indices for both mills with the rod mill and ball mill laboratory work indices. Note in Figure. 1 that the rod mill product slope is less than 0.5 due to an extra amount of 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

  • Ball and Rod MillPK Mining

    Rod mills are grinding machine which employ high carbon steel or special steel rods of nearly the same length as that of the drum in place of steel balls in ball mills. Rod mill products are generally coarser than those produced in a ball mill and rod mills are well suited to handle coarser feed and to control the top size of the product. Lab Sand Mill. Lab Rod Mill. Lab Rapid Ball Mill. Lab Glove Box / Operation Box. Centrifuge Series. Vibrating Screen Series. CONTACT. Tel . Fax . Mobile . Email1 mills lab-mills. Lab Ball Mills Mill Jars/Pots/Tanks Ball Mill Medias