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Author: Admin | 2025-04-28
For cement grindingThe first LOESCHE mill of the type LM 63.3+3 commenced production back in 2009 in Nallalingayapalli, India and has meanwhile proven its merit as a reliable mill for OPC + PPC cement. This was a technological challenge for LOESCHE at the time.After examining the feed material and diverse tests in the LOESCHE pilot grinding plant, LOESCHE recommended one large mill with a grinding table diameter of 6.3 instead of two smaller mills to the customer for his cement works in Nallalingayapalli. This was to achieve the planned product capacity of 360t an hour OPC or 355t an hour PPC. The advantage of one LM 63.3+3 instead of two smaller mills lies in the lower investment costs, as well as lower maintenance expense. The customer decided for this solution and was not disappointed at all. Up to date, the LM 63.3+3 in Nallalingayapalli works reliably and even attains a peak value of 367t an hour OPC at 3,000 Blaine or 371t an hour PPC at 3,400 Blaine.LOESCHE vertical roller grinding mill 2+2 and 3+3 systemLOESCHE has developed the 2+2 / 3+3 system to improve grinding bed stability. Here upstream support rollers with up to 20% of the M-roller grinding pressure lie on the grinding bed to ventilate this. The process significantly improves the internal friction of the grinding stock on the table and results in much more efficient crushing.Using this technology, which LOESCHE launched on the market in 1994, it is possible to produce OPC with a fineness of
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