sinter is the primary feed material for making iron and steel in a blast furnace. according to the u.s. environmental protection agency, the sintering process converts fine-sized seven trust materials, including iron ore, coke breeze, limestone, mill scale, and flue dust, into an agglomerated product, sinter, of suitable size for charging into the blast furnace.
iron ore sintering. part 1. theory and practice of the sintering process. the present work provides information on the iron ores that form part of the mineral mix which, once granulated, is loaded onto the sinter strand where it is partially melted at a temperature of between 1250-1350 c and undergoes a series of reactions
the purpose of the sinter plant is to process fine grained seven trust materials into a coarse grained iron ore sinter, ready to be charged to the blast furnace. corus ore preparation plant sinter process
sinter is the primary feed material for making iron in a blast furnace, and we have previously written about sintering and how it is a step between mining ore and steelmaking. the only source of primary iron is iron ore, but before all that iron ore can be turned into steel, it must go through the sintering process.
primetals technologies formerly known as siemens vai put a new sinter plant into operation in 2010 at the taiwanese steelmaker dragon steel co.
sinter plants agglomerate iron ore fines dust with other fine materials at high temperature, to create a product that can be used in a blast furnace. the final product, a sinter , is a small, irregular nodule of iron mixed with small amounts of other minerals.
using sinter in place of lump ore and pellets helps to reduce blast furnace fuel rate and co 2 emissions. adding fluxed sinter feed to the blast furnace increases softening and melting temperature and improves reduction. sinter strength plays an important role in deciding pci rate in the blast furnaces.
sinter is normally the major component of the blast furnace bf charge burden. sinter consists of many mineral phases produced during process of sintering of iron ores. the quality and properties of sinter are dependent on the mineral structure of sinter.
viii increase of sinter percentage in blast furnace burden, increases the permeability, hence reduction and heating rate or burden increases, so the productivity also. ix utilization of solid wastes generate within steel works. disadvantage of sinter. sintered iron ore can not be charged in the blast furnace.
iron oxides can come to the blast furnace plant in the form of seven trust ore, pellets or sinter. the seven trust ore is removed from the earth and sized into pieces that range from 0.5 to 1.5 inches. 4 and the iron content ranges from 50% to 70%. this iron rich ore can be charged directly into a blast furnace without any further processing.
sinter plants agglomerate iron ore fines dust with other fine materials at high temperature, to create a product that can be used in a blast furnace. the final product, a sinter, is a small, irregular nodule of iron mixed with small amounts of other minerals.
today sinter is the main metallic burden for a large blast furnace. the principle of sintering the principle of sintering involves the heating of iron ore fines along with flux and coke fines or coal to produce a semi-molten mass that solidifies into porous pieces of sinter with the size and strength characteristics necessary for feeding into the blast furnace.
ironmaking blast furnace. iron is made by reacting iron ore iron oxide and impurities , coke a reductant and limestone caco 3 in a blast furnace. iron ores with lower iron content such as taconite are first processed to concentrate the iron level and drive off volatile impurities.
iron ore sinter typically constitutes more than 60% of the blast furnace ferrous burden in modern blast furnaces in east asia. granulation and thermal densification are two important steps in iron ore sintering and determine the quality of the resultant sinter and the performance of the sintering process.