H4CV-26-C which can meet the high quality demands over a l Helical gear unit H4

Flender/Flender Gear Units/Helical gear unit H4

he pellet storage area. Pre-process facilities The pre-processing facilities include storage, dosing, mixing, balling of the raw materials and the related transport facilities. The raw and input materials including ground ore, ben-tonite, hydrated lime or limestone, coke or anthracite, and dry dust are stored in series of bins. Grinding mills for iron ores and additives can also be provided. The different materi-als required for the pelletizing process are extracted from the bins and charged onto belt conveyor by dosing devices. The material is then conveyed to an intensive mixer for thorough homogen- ization, after which it is transported to the balling section to produce the so-called green pellets. 3 CPT sets new benchmarks for cost-efficient iron and steel production on the basis of iron ore pellets.Induration furnace Green pellets from the balling section are charged in uniform layer onto 1-mm hearth layer of the travelling grate of the induration furnace. The height of the green ball bed is approxi-mately 3 mm for total bed height of about 4 mm. The actual bed height is continuously measured by ultrasound probes to ensure the proper speed of the travelling grate. The induration furnace features circular design that allows the furnace hood to cover more than twice as many pallet cars compared with straight- type induration furnace. Multiple fuel burners are installed in the induration hood. The combustion system can use various energy sources such as coal gas from coal gasifier in combination with liquid or other gaseous fuels. If required, Siemens VAI can supply complete tailor-made coal-gasification system to meet the combustion require-ments of CPT plant. The CPT furnace is comprised of seven process zones where the follow - ing activities take place: up-drafting (zone , down-drafting (zone , pre-heating (zone , firing (zone , after- firing (zone , primary cooling (zone and secondary cooling (zone . The le