Mill Diaphragms - Christian Pfeiffer

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Separate outlet:ground material below,air at the top.Air velocity through ball millConventional mill diaphragmssend most of the material throughthe air flow into the second grindingcompartment in anuncontrolled manner. The resultsare energy loss and a high degreeof wear on the grinding media anddiaphragm plates. Large areas ofboth compartments are left withoutgrinding material.Mill diaphragms from ChristianPfeiffer are the intelligent solutionto this problem. In the first grindingcompartment, the materiallevel is kept constant thanks to aninfinitely adjustable ring, whichcan be directly accessed and individuallyadjusted. In the secondgrinding compartment, thematerial falls down through separateopenings underneath theair flow, along the diaphragm anddirectly into the ball charge.10 m/s 20 m/sMaterial flow through intermediate diaphragmAir flowConventional designOptimized CPB-Design
Calculated air velocity above ball chargev = 1.8 m/sv = 1.8 m/sIncreased air passage:improved cooling,shorter retention times.Our engineers have succeeded inincreasing the air passage surfaceof the diaphragm withoutcompromising on stability. The resultis 40% lower pressure losscompared to conventional diaphragms.13.0623.3015.537.76[m/s]0.00This ingenuous design offers numerousbenefits through bettercooling of your grinding material,more effective fines discharge andshorter retention times withoutthe risk of overgrinding.Minimal pressure loss
Page 3: Greater efficiency:all in the diaph
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Mill Diaphragms - Christian Pfeiffer

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