![]() The information at this website might include opinions or views which, unless expressly stated otherwise, are not necessarily those of the 911METALLURGIST.COM or 911METALLURGY CORP or any associated company or any person in relation to whom they would have any liability or responsibility. Visitors to the 911METALLURGIST.COM website should not act upon the website’s content or information without first seeking appropriate professional advice.ĩ11METALLURGY CORP accepts no responsibility for and excludes all liability in connection with browsing this website, use of information or downloading any materials from it, including but not limited to any liability for errors, inaccuracies, omissions, or misleading statements. The 911METALLURGIST.COM and 911METALLURGY CORP tries to provide content that is true and accurate as of the date of writing however, we give no assurance or warranty regarding the accuracy, timeliness, or applicability of any of the contents. Percentage Losses at drive (gearbox+Motor)ĭISCLAIMER: Material presented on the 911METALLURGIST.COM FORUMS is intended for information purposes only and does not constitute advice. The last stages of vibrating screening is 12 mm D80=de to 10 mm measured by exploitation team The ball mill size added: 2/3 is of 100mm and 75 mm 1/3 Actually the initial work index changed and we tried to calculate the operational work index according to a follow-up of the parameters below but I don’t have any conclusions according to this follow-up for an absorbed power and for the same tonnage I find a scats production is different (the feed ore coming the same area) I hope others here can complement this answer. It would only cause the grates to pull with unground oversized rock chips/scats. ![]() Therefore, no, changing to a grate discharge ball mill from overflow would not improve the situation. Other times, you must control and reduce the feed size (crushing circuit product). Other times, you need to enlarge the ball size diameter ie: using a 75 mm ball instead is 35 mm. Sometimes, you solve scatting by charging the ball mill correctly (I saw cases where the mill was up to 15% under power). Too small a grinding ball (what size is your?) The word Skat is a Tarok term 11 derived from the Latin word scarto, scartare, which means to discard or reject, and its derivative scatola, a box or a place for safe-keeping.Reasons your ball mill could be scatting heavily: I suppose you have a reverse spiral installed on the trunnion? A trommel?Īsking a grinding mill is to grind a feed that is coarser than the optimum size of feed swells the Rowland EF4-Oversized Feed and kills the mill's efficiency. The conveyor belt is 15 mm thick, therefore the rocks on it are more like 20-30mm. ![]() There should be no scats at 10 mm unless you are using much too small a grinding ball or the mill charge is much too low.įor example, I was told by a client his ball mill feed was P80 = 9mm but when I went to look at the feed belt, I saw this below. I need to ask you, is the 10mm something you saw yourself or something you were told it was? This is important as if you have not seen if yourself, you can not trust it is really 10mm. I went thru the same problem of ball mill scats over production last week. ![]()
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