Twittern

Current modernization and maintenance ­concepts in the cement industry

• 1 Production costs of Holcim factories in 2009...

• 2 Refurbishment of the Banda Aceh cement factory...

• 3 Wet-process lines at Essroc Cement in the USA...

• 4 Lägerdorf cement factory in Germany (Holcim)

• 5 Cementos Portland Valderivas factory in Spain...

• 6 Gorazdze cement factory in Poland...

• 7 New construction of a modern cement factory...

• 8 Modernization of a kiln line in the Middle East...

• 9 Cooler upgrade with grate cooler in Switzerland...

• 10 Erection of a tertiary air duct in Switzerland...

• 11 Roller press for combination grinding (KHD)

• 12 Mill refurbishment at HeidelbergCement...

• 13 Conversion of a dynamic separator (FCB Ciment)

• 14 Master process control system in a cement...

• 15 Online material analysis (Buzzi Unicem)

• 16 High-capacity bucket elevator as replacement...

• 17 Silo modernizations in Russia (IBAU HAMBURG)

• 18 Maintenance budget allocations in a cement...

• 19 Mixture of different maintenance concepts...

• 20 Inspection of a cement grinding plant in...

• Kiln refurbishment (Basel Cement)

• 21 Safety inspection at Akçansa Cement...

• 22 Display of a kiln scanning system (HGH Systems...

• 23 Monitoring the condition of a cement mill...

• 24 Laser technology for aligning a drive system...

• 25 Maintenance Health Check (Siemens Industrial...

• 26 PREMAS Service (Aumund Group)

• 27 Service center in Australia (Polysius)

Summary: There is an increasing trend towards using benchmarking methods for deciding modernization and maintenance measures on the basis of cost considerations. When cement producers decide on a modernization project, they are usually aiming to increase efficiency, either by eliminating a bottleneck, modernizing the entire plant, a plant section or just individual machines and ­components. Although ready-made concepts exist for all these projects, individual projects are generally approached in a customer-specific manner. The situation with respect to maintenance and servicing of cement plant is similar. Here, too, the possibilities are numerous and therefore very company-specific. This article deals with current topics on this sector.

In recent years, cement production capacity has risen faster than cement sales [1]. The resultant surplus capacities on numerous cement markets have been highlighted by the global economic crisis and recession. Steps have since been taken to substantially reduce overcapacity by means of permanent or temporary factory closures. These have particularly affected uneconomical factories with wet-process kilns or poor capacity utilization in North America, Western and Eastern Europe and also in parts of Asia and South America. Furthermore, production capacities have been adapted at...