PT Indocement Tunggal Prakarsa TnK is the second largest cement producer in Indonesia, with a total of 13 plants. Today, it is engaged in several business segments, including the production and sale of cement (as its core business) and ready-mix concrete, with about 5,000 employees. Indocement is a subsidiary of the German Heidelberg Group, the world’s leading manufacturer of cement and building materials.
Indocement chose Entsorga technologies for the Citeureup plant in Bogor (West Java), one of the largest in the world: a complex of nine plants with an annual design capacity of 11.9 million tonnes of cement. For the cement plant, the challenge was to make the use of green fuels economically advantageous. Entsorga provided the Group with two highly automated lines for handling and feeding the kiln, entirely designed and built to ensure Indocement both emission savings and energy savings.
HOW THE SYSTEM WORKS
The automatic bridgecranes Spider™ (1) handle the fuel in the warehouse 24 hours a day automatically thanks to our control systems, while the two Pelican™ conveying and dosing systems feed the kiln, ensuring a continuous and constant flow of capacity. The first line has a handling and feeding capacity of 40 t/h, the second of 10 t/h. In the lower-capacity line, the material is transferred from the overhead crane to a roller conveyor and from there to an existing line within the plant. In the higher-capacity line, two roller conveyors feed a weighing conveyor that adjusts its speed based on the desired flow rate and the type of fuel. The weigher is also equipped with a magnetic separator to remove any ferrous metals. Finally, two long conveyors transport the material to the burner.