Key words: Ferromanganese, blast furnace, manganese ore, MnO reduction, MnO sinter Introduction The production of high-carbon ferromanganese in blast furnaces is reviewed, based on public ...
A study of the flow characteristics of blast furnace slag is important to record the softening and melting phenomena in blast furnace which greatly influence the extent and location of the cohesive zone having a direct say on the blast furnace operation, quality of hot metal and the coke consumption.
Abstract. Based on the furnace burden of high content of Al 2 O 3, the process of softening and melting and the characteristic of primary slag were studied with the increase of MgO content in the sinter and adding some MgO into the pellet.The results showed that the content of MgO in the primary slag increased with the increase of MgO in the sinter and pellet.
Effect of Magnesium and Aluminum Oxides on Fluidity of Final Blast Furnace Slag and Its Application Jia-Shyan Shiau+, Shih-Hsien Liu and Chung-Ken Ho Department of Iron and Steel Research and Development, China Steel Corporation, Kaohsiung, 81233 Taiwan, R. O. China
material for the blast furnace, coke ovens that produce coke, which is important as a reducing agent, and hot stoves that generate the high temperature (approx. 1 200°C) hot blast blown into the blast furnace. Large amounts of CO2 are generated by the reduction reaction (Fe2O3+3CO → 2Fe+3CO2) in the blast furnace and the
A Review of the Production of Ferromanganese in Blast Furnace ... in blast furnace with high proportion of sinter and improvement in manganese recovery ... furnace (SF) for high carbon manganese ...
Mar 28, 2016· It was established by laboratory studies and confirmed by factory tests that the filterability of molten blast-furnace slag is affected by the presence of the oxides MgO, MnO, and CaO, which are added to charge that is used to make sinter. The magnitude of this effect depends on the composition of the minerals that contain these oxides.
Blast" Furnace. The Mn sinter produced was of 1. 8 terinary basicity and % MgO content, shaftkilns was built for lime stone calcining, all thesebrought good effect on BF FeMn smelting. Now, to have the flux sintering by most producers are to 'charge high basicity, MgO Mn sinter
Pellet Process Uses and Exposures May 2010 Know More. As for all blast furnace material (coke, sinter, pellets and lump ore) a final screening takes place at the blast furnace site Undersize pellets can be recycled Undersize pellets can be recycled...
Manganese content ranges from 74 to 82% and the carbon content from 7 to 7.5%. It is produced either by a blast furnace or a submerged arc furnace. The alloy is smelted either by high-manganese slag or discard slag practices. High-manganese slag practice operates with slag containing 30–42%Mn.
effect of high manganese sinter in blast furnace. effect what effect magnetic sinter in blast furnace effect of high manganese sinter in blast furnace effect of the high alumina and high silica iron ore feed into effect Effect of Sinter Mix Composition and Additives on the Increasing amounts of roll scale ore fines return fines and blast ...
AbstractIron ore sinter, constituting a major proportion of blast furnace burden, significantly impacts the blast furnace performance. The chemical composition of iron ore fines, particularly alumina, sinter basicity and sinter MgO together with the thermal conditions that sinter blends are subjected to play an important role in the formation of mineral phases in sinter.
Effect of Sintering Performance of the Utilization of Blast Furnace Solid Wastes as Pellets.pdf Procedia Materials Science 5 ( 2014 ) 2468 – 2477 Availab le online at
Nov 14, 2013· Partial reduction of the higher manganese oxides may also occur during sintering. Blast Furnace Operation In comparison to iron making, high gas temperatures are required in ferromanganese production because the reduction of manganese (II) oxide takes place at a higher temperature than is required for the reduction of wustite.
Nov 10, 2014· A review of the production of ferromanganese in blast furnace 1. A Review of the Production of Ferromanganese in Blast Furnace Jorge Madias Consultant metallon 2. Content Facts and figures Raw materials Blast furnace design & operation Comparison with SAF Conclusions 3.
practically studying the situations faced by the blast furnace FeMn producers. 2) Studies on production of high carbon Ferromanganese in Blast Furnace with high proportion of sinter and improvement in manganese recovery. XIaoxing Xiong, Daolin Liu. The Proceedings of INFACON VIII, …
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. The process, called sintering, causes the constituent materials to fuse to make a single porous mass with little change in the chemical ...
A full survey of the laboratory and blast-furnace tests on 2 types of acid pellets is given. From the laboratory tests out in an atmosphere containing hydrogen, it appears that type B, produced out of magnetitic ores, has a far better low temperature disintegration index and a lower reductibility index than type A, produced from a hematite/magnetite mixture.
AP-42, CH 125: Iron And Steel Production - US EPA Know More. 125 Iron And Steel Production, The sintering process converts fine-sized raw 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 The raw materials are sometimes mixed with water to provide a cohesive matrix, and ...
The physical model for a blast furnace is showed in Fig. 1.The sinter ore, pellet ore, lump ore and coke are fed into the blast furnace from its top, and their dosage are D sinter, D pellet, D lump and D coke, respectively.Blast and pulverized coal are blew into the furnace from the tuyere at high velocity.
High Blast Pressure by Turbo Blower because of 10-40 mm lump ore No losses in handling iron ore as pellets will not break during ... of hot metal is produced using sinter feed in Blast Furnaces. Large sinter strands 6 m wide and with a sintering area of > 400 m2, are capable of producing 30–45 t/m2/day. 18.
Nov 22, 2013· blast furnace, CO, Reaction, slag, Chemistry of the Ironmaking by Blast Furnace Process. Liquid iron (hot metal) is produced in a blast furnace from the burden materials through a series of chemical reactions which are taking place at various levels in a blast furnace.
Application of High Ratio Coke Mixed Charging Technique to Blast Furnace above, the changes in blast furnace operation when the sinter ratio is changed were predicted using the 2-dimensional simulator. The effects of the sinter ratio and the coke mixed charging ratio were investigated
The sinter basicity also plays an important role in sinter quality since it imparts the formation of different mineral phases in sinter. Pot-grate sintering tests were carried out with low and high basicity to investigate the effects of sinter basicity on sinter mineralogy, properties and productivity.
HOW A BLAST FURNACE WORKS Introduction The purpose of a blast furnace is to chemically reduce and physically convert iron oxides into liquid iron called "hot metal". The blast furnace is a huge, steel stack lined with refractory brick, where iron ore, coke and limestone are dumped into the top, and preheated air is blown into the bottom.
A Review of the Production of Ferromanganese in Blast Furnace - Free download as Powerpoint Presentation (.ppt / .pptx), PDF File (.pdf), Text File (.txt) or view presentation slides online. The production of high-carbon ferromanganese in blast furnaces is reviewed, based on public literature and requests to consultants and suppliers to the industry.
Dec 15, 2011· Blast Furnace Slag is formed when iron ore or iron pellets, coke and a flux (either limestone or dolomite) are melted together in a blast furnace.When the metallurgical smelting process is complete, the lime in the flux has been chemically combined with the aluminates and silicates of the ore and coke ash to form a non-metallic product called blast furnace slag.
Feb 17, 2017· If the LOI is high it will decrease your productivity in sintering process and sinter iron is main thing in the blast furnace and yes it will increase the coke addition but as overall cost evalution if the LOI in lower side.
the effect that an increase in the volume fraction of fine pores was effective also in improving the strength and low-temperature reduc-tion degradation behavior of sinter and pellets9). 3. Improvement of Blast Furnace Operation through Improvement of Sinter Quality 3.1 Improvement of blast furnace operation by decreasing SiO 2 and MgO contents ...
Jul 08, 2013· Major advantages of sintering process are (i) Sintering uses as mined iron ore fines which can be used as such without further activity of grinding (ii) Sintering can use a very amount of waste materials (iii) Sinter can be made with high basicity thus eliminating direct charging of limestone and dolomite in blast furnace.