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Mill grate box prior art date ball discharger for grinding mill us4172560a en vermillion equipment amp supply co., inc. outotec oyj multistage discharger for grinding mills us9289775b2 en polycorp ltd. discharge grate assembly families citing this family 1.
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Grate ball mill discharge side cover 1.grate liner 2.bearing inner sleeve 3.quill shaft 4.skipshape liner 5.central liner 6.steel bars 7.drill key. different of feeding device of grate ball mill. 1. the feeders of ball mill are drum type, worm type and combined type, and their structures are shown as a,ndn the figure.
Grate discharge ball mill used in wet and dry grinding in both open and closed circuits,rate discharge ball mill sometimes known asiaphragm discharge mill incorporateslotted discharge diaphragm with lifters at the discharge end of the mill. the diaphragm, or grate, serves to retain the balls and any coarse material,.
The speed of the mill, type of liners, grate openings for ball mills, size and type of feeder, size and type of bearings, trunnion openings, mill diameter and length, as well as many other smaller factors are all given careful consideration in designing the ballmill. for metso outotec mills as well as for competitor mills and for all.
A pulp lifter forrate discharge mill used primarily in mining operations. the lifter compriseslurality of chambers which radiate outwards. each chamber comprisesransitional compartmentaving apertures 19 into which the slurry enters andollection compartment 21 to which the slurry passes. when the pulp lifter rotates, the slurry cannot flow back but.
The grate discharge arrangement removes this slurry pooling effect almost completely. estimates of the increases in power draw possible with grate discharge ball mills range from 10 to 20, according to mill size and other operating parameters. the figures from pilot tests and some operating sites are even higher, up to 25 more power draw.
Convertingall mill from overflow to grate discharge involves installingrate inside the mill at the discharge end. the grate holds the balls inside the mill but allows the slurry to pass through, and it is then pumped out of the mill by the pulp lifters. for suitable mills, metso outotec is able to provide modelling of the mill.
Howrate discharge ball mill works. herery to explain how ground slurry is discharged fromrate ball mill or sag. how it works is, the slurry flows across the grate as it wouldcreen panel. on the other side of the gratescreens are veins likeump impeller. as the mill turnsrotates the slurry is pumped out and discharged.
Home crusher solution 14 outotec grate discharger ball mill print email outotec grate discharger ball mill. xsm mainly produce mining machineryoutotec ball mills outotec sustainable use of earths natural resources.
Grate ball mill grate discharge ball mill isall milling machine used to grind various ores and other materials. grate type ball mill israditional ball milling equipment for forced ore discharge by ore discharge grate.. its basic structure and grinding process are basically the same as the overflow type ball mill, but the structure of the ore discharge part is different.
A 4.7m.5m outotec grate discharge ball mill with an installed power of 2.6mw and turbo pulp lifters is operated in closed circuit with 250mm cyclones to provide5roduct to flotation. the primary mill was initially commissioned as an autogenous grinding ag mill.
The discharge end of the grate discharge ball mill has at least ten times the discharge opening area, through the grate slots, compared to the common trunnion overflow type mill. the discharge grates are designed to run clean and free of any blinding or choking. the pulp level in the mill may be varied by merely changing the pulp dilution.
Description. reliable and effective grinding technology for diverse applications with more than 100 years of experience in developing this technology. metso outotec has designed, manufactured and installed over 8,000 ball and pebble mills all over the world foride range of applications. some of those applications are grate discharge, peripheral discharge, dry.
A 4.7m.5m outotec grate discharge ball mill with an installed power of 2.6mw and turbo pulp lifters is operated in closed circuit with 250mm cyclones to provide5roduct to flotation. the primary mill was initially commissioned.
Metso outotec has designed, manufactured and installed over 8,000 ball and pebble mills all over the world foride range of applications. some of those applications are grate discharge, peripheral discharge, dry grinding, special length to diameter ratio, high temperature milling oprations and more.
This diaphragming action works the large particles that enter the grate through to discharge and producesear zero blinding of grate wall. the pieces of media or feed seen inrate whenill is shut down are particles either in the process of being discharged or returning to the mill.
Discharge arrangement outotec provideside variety of discharge arrangements, such as overflow, peripheral, grate and openended. sag and ag mills typically have grate discharge arrangements which can be either with or without trommel screens. sag and ag mills with openended discharge arrangements are usually more efficient than grate discharge arrangements.
Outotec grinding technologies 003 28 ball mill 14,000 kw installed power. 004 outotec grinding technologiesull range of mills for wet and dry grinding the demands of hard rock mining and industrial minerals operations requireiverse range of grinding mills for both wet and dry applications. ag and sag mills are currently the industry.
The cost ofall mill conversion from overflow to grate discharge is fairly affordable at 65,000 for35 mill. this is only for the discharge head, grates and pulp filters rubber.omparison in laboratory of overflow discharge ball.
A reliable mill lining supplier will always consider these factors when offering the best solution for conversion ofall mill from an overflow torate discharge. for suitable mills, metso outotec is able to provide modelling of the mill before and after conversion to quantify the process benefits of the conversion, and then design the.
Discharge systems and we were left with the existing gratepulp lifter discharge and overflowdischarge grinding mills. outotec has carried out extensive studies to ensure an efficient material transport system, therefore enhancing the energy efficiency and maximising the capacity of the horizontal grinding mills.
The mill, 6.7iameter and 8.2ong with steel liners will be built with grate discharge using outokumpu technologys patented turbo pulp lifter tpl technology. it will be capable of processing 1,100 th of milled ore to the flotation section. it will be powered by two synchronous motors continuously drawing approximatelyw.
Ball mills are used primary for single stage fine grinding, regrinding, and as the second stage in two stage grinding circuits. ball mill according to customers requirements, gm success in absorbing foreign experience and worldadvanced technology, and in.
Grate ball mill discharge side cover 1.grate liner 2.bearing inner sleeve 3.quill shaft 4.skipshape liner 5.central liner 6.steel bars 7.drill key different of feeding device of grate ball mill 1. the feeders of ball mill are drum type, worm type and combined type, and their structures are shown as a,ndn the figure.
Ball mills have been the primary piece of machinery in traditional hard rock grinding circuits for 100 years. they are proven workhorses, with discharge mesh sizes from 40m to00m. use ofall mill is the best choice when long term, stationary milling is justified by an operation.
Mill shell liner amp head liners. grate discharge heads for ball mills are completely assembled in the shop, with grates, clamp bars, pan liners, and center discharge liners in place. depending upon available handling facilities, the head or shell can be lined separately inepair bay, or after assembly of the mill proper in the trunnion bearings.
The mill discharge from these mills consists of slurry, which goes to the ball mills for further grinding, and coarse pebblesrocks, which are crushed and sent back to the mill. to maximize the capacity of these circuits, the general practice is to use grates with pebble ports reaching 100 mm instead of normal grate openings to increase the.
Metso outotec has designed, manufactured and installed over 8,000 ball and pebble mills all over the world foride range of applications. some of those applications are grate discharge, peripheral discharge, dry grinding, special length to diameter ratio, high temperature milling oprations and more. all equipment adheres to the applicable.
Mill grate box prior art date ball discharger for grinding mill us4172560a en vermillion equipment amp supply co., inc. outotec oyj multistage discharger for grinding mills us9289775b2 en polycorp ltd. discharge grate assembly families citing this family 1.
Ball millsmetso outotec. outotec has designed manufactured and installed over00 ball and pebble mills all over the world foride range of applications. some of those applications are grate discharge peripheral discharge dry grinding special length to diameter ratio high temperature milling oprations and more.
