270 kilometers to the northwest of the capital Astana, a new cement plant is built on a green-field site in Kazakhstan under the direction of FLSmidth. At the end of 2006, FLSmidth and East Energy Company (EEC) principal owner of Kokshe Cement signed the contract for the project. The cement plant Kokshe will be the first of several plants currently being planned in Kazakhstan. Until March 2008, Kokshe Cement will receive various machines from AUMUND Fördertechnik GmbH to equip the cement plant.
The limestone in Kokshe will be conveyed to the mill by an AUMUND chain bucket elevator (BW-Z) with a conveying capacity of 232 t/h. Two AUMUND belt bucket elevators offering a conveying capacity of up to 570 t/h will ensure the raw meal transport to the preheater tower. A further AUMUND bucket elevator with central chain (BW-ZL) will convey filter dust. The clinker transport from the cooler to the clinker silo will be handled by an AUMUND deep-drawn pan conveyor with baffles (KZB-Q 250-800/450/4) which will feature an inclination of 38 degrees, a center distance of 117 m and a maximum conveying capacity of 344 t/h. An AUMUND armoured chain conveyor (PKF 1000/3/600) with a conveying capacity of 160 t/h will be used as a hopper discharge for gypsum. Armoured chain conveyors from AUMUND are fitted with round-link chains and specially formed scrapers which have proven to be well suited for carrying along adhesive conveying materials.
Two AUMUND bucket elevators with central chain, a lifting height of 24 m and a conveying capacity of 255 t/h will transport the clinker into the cement mill. The return of the cement to the cement silos will be the task of two AUMUND belt bucket elevators (BW-G, lifting height 70 m, conveying capacity 255 t/h). For the loading of the clinker three telescopic chutes with a lifting range of 3400 mm, integrated dust control system and automatic operation will offer an efficient and ecological solution. In Kokshe, the chute version for high capacities and rapidly succeeding loading cycles will discharge up to 200 t/h.
The requirements on the design of the plant and the equipment going to be used will be really tough: In winter, temperatures in Kazakhstan can drop to minus 40 degrees Celsius. The plant will be erected during the frost-free months of the next two years. About 60 percent of the national cement demand originates from the Astana region so that the plant will surely help to cover the existing demand in the surrounding area.
