The main raw materials for making cement are limestone, clay and marl. These materials are delivered to roller grinder mills or ball mills, to be ground into a fine powder for further process. Metals in these raw materials have to be removed before they reach the mills as they may cause the mill to be excessively worn out.

The Secus D metal detector is set up on the conveyor and detects all raw materials materials passing on the belt. The divisible coil can be installed around the conveyor belts without having to separate them, the removal of the metal detector is also possible without cutting the belt.

Cement factories are commonly located outdoors, and thus have to cope with harsh weather conditions. TCDRI builds cement factories in different countries, facing a variety of challenges. A cement factory pf TCDRI in Caucasus, Russia has to cope with ambient temperatures in winter from down -45 to 20° Celsius in the summer. The Secus metal detector can easily cope with different temperatures because of a learning function, which allows the system to adapt to changing ambient conditions by compensating for the product effect.

The varied water content in different raw material batches does therefore not interfere the detection either. Even under low temperatures, strong winds, or nearby vibration, Secus detects metals reliably and avoids false alarms. The reliance in Secus pays off on multiple levels for TCDRI:

Since the company equips most of their customers cement plants with Secus, it has received high praise for the product. According to TCDRI’s statistics, after implementing the Secus metal detector, the life of downstream grinders have increased by over 110%. It thus prolongs the product life-cycle and minimises unnecessary process shutdowns due to machine defects or false alarms. The direct and indirect costs from customers have significantly decreased, since the inspection.