rod mill length to diameter minimum ratio asspect nl Length to diameter ratio ndeed length to diameter ratio when establishing a longitudinal magnetic field in component using a coil or cable wrap, the ratio of its length in the direction of the desired field to its diameter or thickness must be taken into consideration get price rod mill feed size grinding amp classifiion circuits rod

Chat Onlinemilling circuit consists of a rod mill followed by a ball mill in seri Crusher product (-9 mm) is fed to the rod mill, and the water is fed in ratio to the ore feed mass The rod mill discharge is pumped, without any further water addition, to the first ball mill The ball mill discharges to a sump where water is

Chat Onlinepreviously, at a mill stop, the measurement of ball charge filling degree could be undertaken and will provide the static media charge angle (βstatic = 143°) An online measurement of the similar angle (βdynamic), when the mill is running, provides information about the dynamics of the charge The ratio between the dynamic and the static ,

Chat OnlineRod Mills With High Reduction Ratio; product list K Series Mobile Crushing Plant; Mobile Vibrating Screen; Belt Conveyer; Sand Washing Machine; S5X Series Vibrating Screen; GF Series Vibrating Feeder; Ball Mill; Raymond Mill; MW Series Micro Powder Mill; T130X Superfine Grinding Mill; MTW Trapezium Mill;

Chat OnlineThe reduction ratio, R, in rod mills varies from 2 and 20 depending on the characteristics of the oreThe usual reduction ratio is about8 According to Bond, the reduction ratio is a function of length and diameter of the mill get price rod mills with high reduction ratio Grinding Mill China

Chat Onlineon wear is another issue Stresses from Hertzian pressure in 4-high cold mill back up rolls were measured years ago, the results were never published, but of high interest - also, maybe later K H Schröder July 2003 K H Schröder: A BASIC UNDERSTANDING OF THE MECHANICS OF ROLLING MILL ROLLS File: SCHROEDER_ROLLS_010703DOC

Chat OnlineDurable High Crushing Ratio Coal Grinding Mill For Rod mill is widely used grinding machine to grind all kinds of ore and rocks in metal and nonmetal mining, water conservation, building materials, sand making industry and so on The rod mill is composed by the cylinder part, feeding part, discharging part, main bearing part and driving

Chat OnlineLearn how a ball mill works, all of its main parts and some of its design features! This 3D animated video allows you to see all the internal parts of a ball,

Chat Online5Rod Mill Rod mills are incredibly similar to ball mills except they use lengthy rods for grinding media The rods grind the ore by tumbling within the the mill To prevent the circumstances top to rod charge tangling the length to diameter ratio is maintained at 14 to 16

Chat OnlineWe have rod mills with high reduction ratio ,To prevent the conditions leading torodcharge tangling, the length to diameterratiois maintained at 14 to 16Rod millsaccept 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) Grinding action is by line contact between the rods extending the length of themill

Chat Online7 Differences Between Ball Mill and Rod Mill Xinhai The cylinder lengthdiameter ratio of rod mill is generally , while the cylinder lengthdiameter ratio of ball mill is smaller, only slightly greater than 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

Chat OnlineThe 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 AG/SAG 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

Chat Online EF1 – Dry Grinding – for the same range of work, dry grinding requires 13 times as much power as wet grinding EF2 – Open Circuit Grinding – when grinding in open circuit ball mills, the amount of extra power required, compared to closed circuit ball milling, is a function of the degree of control required on the product produced The inefficiency factors for open circuit ,

Chat OnlineThe geometry of a mill with conical ends is shown in Figure 86 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 (816) 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,

Chat OnlineNov 18, 2014· Slide 3 circulating load ratio : As the ratio of the amount of solids going through the ball mill divided by the amount of solids going through the circuit , If the reaction of mill capacity be much faster , the rate of feed would be set [8] 8 Slide 8 effective factors for circulating load One of the problems of mentioned strategies is ,

Chat Online14) this corresponds to a compression ratio of about 4 9 Compression ratio should be about the same in each stage of a multistage unit, ratio = (Pn/P1)1/n, with n stag 10 Efficiencies of reciprocating compressors: 65% at compression ratio of 15, 75% at 20, and 80-85% at 3-6 11

Chat OnlineFor more information, please visit china/ or -crusher/ or contact [email protected]

Chat OnlineThe reduction ratio r in rod mills varies from 2 and 20 depending on the characteristics of the ore the usual reduction ratio is about 8 according to bond 4 the reduction ratio is a function of length and diameter of the mill the optimum reduction ratio r ro can be written asHow to calculate size

Chat OnlineNov 21, 2015· In some mills (eg hot strip mill, wire rod mill, merchant mill, and cold rolling mill), the rolled product is coiled in a coiler or a wind up reel Mostly, rolling is done at high temperature, called hot rolling, because of requirement of large deformations Hot rolling results in residual stress-free product

Chat OnlineRod mill products are generally coarser than those produced in a ball mill Because of these characteristics, the rod mill has also found wide acceptance by manufacturers of fine concrete aggregates, where rigid state or federal specifications must be met Rod mills are also used extensively in the grinding of chemicals, coke, limestone, slag, etc

Chat OnlineAMIT 135: Lesson 8 Rod Mills – Mining Mill Operator Training calculations, the reduction ratios of rod and ball mills were 6465 and 115, which show high the ball mill is increased and therefore its reduction ratio is higher , Twin-tube vibrating mill with drive and counter-vibration frame, type 4210, size high reduction ratio Grinding and cutting - Unit Operations in Food Processing - RL ,

Chat OnlineRod Mill Grinding Rods911Metallurgist Effect on Rod Mill Power Draw Get Price; Ball Mills Ball mills operate either in open or closed circuit Open circuit operation is best utilized when • Another stage of grinding follows the mill • Reduction ratio is small • Feed material is already fine and one pass through the mill produces the desired results • Product size

Chat OnlineSAG mills, particularly in American practice, have a large diameter-to-length ratio Tumbling mills are 35–50% filled with grinding medium, since this gives optimum power draft The selection of the (average) medium size is a compromise between being large enough to break the largest particles, and small enough to maximize the number of ,

Chat OnlineNo 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 indic Note, in Figure 1, that the rod mill product slope is less than 05 due to an extra amount of ,

Chat Onlineto a 175 inch core radius (35 inch diameter); 175 divided by 175 is 10:1 ratio That means, if you start at 100 inch pounds of torque at the beginning of the unwind roll for proper tension, the torque must be linearly decreased to 10 inch pounds of torque at the core to maintain constant tension

Chat Onlinegear ratio for rolling mill speed calculation formula pdf Empirical Sealed clean bearings for rolling mill roll neck Todays demands on productivity and quality in hot rolling mills for rod and wire require The Rolling simulation program for calculating the empty gap unloaded stand Speed calculation is a function of finishing speed, area of ,

Chat OnlineThe cylinder length-diameter ratio of rod mill is generally 15-20, while the cylinder length-diameter ratio of ball mill is smaller, only slightly greater than 1 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

Chat OnlineJun 22, 2004· Rod and Bar Rolling: Theory and Applications highlights the underlying relationship between solid mechanics and materials science It provides a detailed overview of the deformation of material at high temperatures, an assessment of rod and bar rolling processes, and an in-depth review of the basics of hot rolling, elasticity, plasticity, and recrystallization for a clear understanding of the ,

Chat OnlineBall mills with a drum length to diameter ratio greater than 15 are referred to as tube mills Ball mills may be primary or secondary grinders Primary grinders are fed from crushers such as a jaw crusher Secondary grinders are fed from other grinders eg a rod mill Ball mills are usually either of the grate (diaphragm) or overflow type

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