Modernization of Nurkazgan beneficiation plant in Kazakhstan
thyssenkrupp Industrial Solutions Kazakhstan will deliver a new ball mill to Kazakhmys and install the equipment in the second grinding stage. The new ball mill will optimize the grinding circuit and will increase the total throughput of the copper plant by 20% up to 4 mtpa. The higher throughput will be reached after commissioning of the new equipment in 2017.
The ball mill has a diameter of 4,6 meter and an effective grinding length of 8,2 Meter with 2,700 kW installed motor power. The ball mill is shell supported directly on hydrodynamic slide shoe bearings. No conical cast heads and trunnions are required. The reducer is a COMBIFLEX® reducer - two self-aligning output pinions of the reducer are directly meshing with the girth gear. The load sharing between the two output pinions is system inherent and permanently ensured.
"thyssenkrupp Industrial Solutions is a well-established manufacturer of grinding mills with over 2000 mills in operation world-wide. The grinding mills are of proven design to meet the high standards demanded by the clients in the minerals industry. Since the 1970’s, thyssenkrupp Industrial Solutions builds exclusively shell-supported tube mills. The mill technology offers many benefits with respect to capital and operating cost, manufacturing, transport, floor space and building savings, erection and numerous process advantages."