The corex Process

The Corex- bidding Since the eighties Voest Alpine developed the blacken step-down process. The Corex- Process is an alternative to the conventional gamy surface production because bitter metal is produced without snowfall. Since 1981 lump ore, pellets and sinter have been successfully tested. The well-nigh important advantages are: Only coal instead of coke is employ Lump ore, pellets may be used The Process: The earthy solids are iron ore, coal and additives. These common chord components are charged via a lock system. The coal gets by a come guide from a storage stash away (number 3 in the picture) into the melter mishandleifier. 1 In the upper power of the melter squanderifier the coal is completely dried and vaporise with the reducing gasolene which has a temperature of 1100° C. The reduction proceeds rapidly, hence enhancing the conversion from coal to coke which is gasified and with oxygen winded in. The gas flows in the cyl indrical part of the melter gasifier and because of this a motionless fluidered bed occurs. upstream of the tuyeres oxygen reacts with carbon to a casting of CO2 which is so converted to CO by employ coke. The temperature of the fluidered bed is amidst 1600 and 1700° C. After leaving the melter gasifier the longing raw gas is intricate with chill gas to reach a temperature of 900°C.

After this the gas is cleaned in the reduction sweep. 4 Part of the pre- cleaned gas goes into a Venture 5 scrubber to obtain cooling gas. The mulct particles, which are separated from the gas, are recycled into the melter gasifier. In the reduction shaft 2 the iron! ore is reduced to scrub iron. The hot sponge iron goes then from the reduction shaft via screw conveyers and drops by gravity into the melter gasifier. In the fluidered bed the fall of the material is powerfully decelerated. In the melter gasifier the sponge iron is heated up and dissolve to form a hot metal and a dross bath at the bottom. At least the hot metal and slag are tapped every three hours at a temperature of...If you want to get a full essay, bless it on our website: BestEssayCheap.com

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