Based on over thirty years of on-site test data accumulation and experimental analyses, SBM has developed the MRN grinding mill, the fifth-generation pendulous hanging grinding mill. This mill is capable of grinding all non-combustible and non-explosive brittle mineral products with Moh’s hardness below Grade 7 and water content under 6.
MRN Pendulum Roller Grinding Mill Working Principle
After hammer crushers (or jaw crushers) break large bulky materials to smaller ones, elevator works to send materials to material hopper. Then, by electromagnetic vibrating feeder, broken materials are evenly and quantitatively sent to the grinding chamber of MRN Pendulum Roller Grinding Mill. After grinding, materials are blown away by airflow to the powder concentrator for classifying. Under the action of the impeller of powder selector, materials which fail to meet fineness would be sent back to grinding chamber to get another grinding while qualified powders would be collected by cyclone powder collector and discharged from the bottom as finished products. And, after that, the airflow would go into the fan along with the air return duct at the top of cyclone power collector. This system adopts a closed circuit and runs under positive and negative pressure.
Elastic volute damping structure can effectively reduce vibrating damage on the MRN Pendulum Roller Grinding Mill.
The grinding roller adopts diluted oil lubrication. which is oil bath lubrication, no frequent oil-adding, and it needs lower maintenance cost.
The use of large-diameter grinding roller directly improves the efficiency of the grinding mill.
The powder concentrator adopts low-resistance hanging cage-type powder concentrator, which features high efficiency and low energy consumption.
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