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UNICEM commissions cement plant

Published by
Dry Bulk,


The United Cement Co. of Nigeria, UNICEM, has commissioned a new cement plant 2 at Mfamosing, in Cross River State, Nigeria. LOESCHE received the order for two vertical roller mills: one type LM 60.4 for grinding cement raw material and one LM 70.4+4 CS.

The cement plant at Mfamosing is fully operational and equipped with the latest technology. The 2.5 million tpy capacity was extended using LOESCHE technology. The LOESCHE mill type LM 70.4+4 CS has been designed for a capacity of more than 370 tph with a fineness of 4700 Blaine. Using this new technology meant that a new drive system was necessary. RENK AG Augsburg and LOESCHE GmbH Düsseldorf established this, resulting in a COPE (Compact Planetary Electrical) drive. COPE was designed for mill drive powers ranging from 4000 kW to 15 000 kW. The fast-running and error-prone first stage gear of conventional gearboxes became obsolete.

The COPE gearbox is equipped with 8 individual drive units, which are designed for a capacity of 8.800 kW.

Other features included:

  • Equal size as standard drive units for vertical roller mills and thus exchange of existing, conventional gearboxes eminently suitable.
  • First use of a 8 drive units for a VRM gearbox.
  • First time multiple drive in VRM to operate with or without VFD (Variable Frequency Drive).
  • Easy removal of individual drive units to minimise down times (approximately 2 hr).
  • Compact design with motors directly attached to gearbox housing.

Read the article online at: https://www.drybulkmagazine.com/material-handling/29112016/unicem-commissions-cement-plant/

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