Sponge Iron
In the coke oven plant our oven fans provide the combustion air to burn the coke (mostly carbon). Howden centrifugal compressors in the coke-oven by-product plant exhausters remove the by products such as sulfar, phenol and ammonia. Our rotary Gas Gas Heaters are being used in the emissions reduction systems of sinter plants and coke plants to efficiently transfer heat between the untreated and treated gases
DRI
DRI can be produced in powder, pellet, lump, or briquette form. The powder, pellets, and lumps retain the shape of the iron oxide material fed into the DR process. The removal of oxygen leaves voids, giving the DRI a spongy appearance when viewed through a microscope. Thus, DRI in these forms has a lower apparent density, greater porosity, and more surface area than iron ore. In the hot briquetted form, it is known as hot briquetted iron (HBI). Fluidized bed DRI is usually processed to HBI due to the difficulty of using fines in steelmaking, and the reactivity of fines to oxygen, even when cool.