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Ore Sinter Concentrate Pellet Fines . These are typically fed to a blast furnace or DRI plant as part of the process to make steel Get Price Are Iron Ore Pellets And Sinter Agglomerated Iron ore pellets and sinter agglomerated iron ore sinter pellet ipowercontrol Iron ore pellet is a type of agglomerated iron ore fines which has better tumbler index when compared with that of parent iron ore ...
Dec 01, 1973 Abstract. The effect of lime and silica addition on the reducibility, of sintered iron ore and synthetic hematite pellets was investigated. The addition of lime andor silica up to about 10 total to sintered synthetic hematite pellets has little effect on the reducibility at 900 C.
The RF-33TVRDI has been designed primarily to test the properties of the iron ore charge lump ores, pellets, and sinter. However, in case of adding the coke making software modules and CSR testing equipment, it is also possible to test coke properties alike with the RF-33, RF-33KK or RF-33TV Systems. The RF-33TV RDI System therefore ...
The chemical analysis of iron ore sinter is given in Table 3. The X-ray diffraction analysis of the applied sinter exhib-ited that the sinter was composed of three main phases hematite, calcium silicate, and calcium ferrites as given in Fig. 2. The microstructure of sinter sample was examined by RLM as given in Figs. 3a3d. The phases ...
Mar 23, 2020 Herein, the reducibility of the iron ore pellet, sinter, and lump ore in the BF shaft are focused on. The experiments are conducted isothermally with a blast furnace simulator BFS hightemperature furnace at four different temperatures 700, 800, 900, and 1000 C for 300 min.
Reducibility of iron bearing material is an important property which represents its suitability of reduction in iron making furnaces. It has direct influence on improving productivity and lowering energy consumption in iron making process. The reducibility of iron ore pellets of a specific chemistry can be improved by the optimization of physical parameters such as induration temperature ...
Mar 23, 2020 Herein, the reducibility of the iron ore pellet, sinter, and lump ore in the BF shaft are focused on. The experiments are conducted isothermally with a blast furnace simulator BFS high-temperature furnace at four different temperatures 700, 800, 900, and 1000 C for 300 min.
The reducibility of iron ore pellet has been tried to be improved by adjusting the physical parameters viz. optimization of induration temperature, changing pellet size, changing apparent porosity and pore distribution keeping the same green pellet chemistry. J. Pal et al. JMM 53 1 B 2017 37 -
The RF-33TVRDI has been designed primarily to test the properties of the iron ore charge lump ores, pellets, and sinter. However, in case of adding the coke making software modules and CSR testing equipment, it is also possible to test coke properties alike with the RF-33, RF-33KK or RF-33TV Systems. The RF-33TV RDI System therefore can be, generally said, widely usable for studying high
Study of sinter reactions when fine iron ore is replaced with coarse ore, using an infrared furnace ... surface area for reaction. Consequently, the reducibility of sinter decreased as the percentage coarse ore increased. ... distribution on the packing density of compacted pellets, which influences sintering rates. The results reported that ...
Use of iron ore pe llets not only increase the productivity of the plant but also produce good quality iron. So it is essential to know about the various factors which affect the reducibility of th e iron ore pellet. In our project we aim at studying the effect of size of iron ore pellet on i
Sinter quality is a key element for stable blast furnace operation. Sinter strength and reducibility depend considerably on the mineral composition and associated textural features. During sinter optical image analysis OIA, it is important to distinguish different morphologies of the same mineral such as primarysecondary hematite, and types of silico-ferrite of calcium and aluminum SFCA.
pellets using various binders, afterwards indurating the newly formed pellets to strength high enough to survive transportation. Experimental Iron ore from Gandha Mardana mines and charcoal were used in the experiment .Analysis of the iron ore showed that it
increasing the content of MgO in iron ore pellets, not only the metallurgical performances of pellets are improved, but also the MgO content in sinter another burden of blast furnace decrease, because the excess MgO in sinter causes many negative effects such as the sintering rate, the fuel rate, and the sinter strength and reducibility ...
output of the two products in 1994 standing at 534.3mt and 224.7mt for sinter and pellet respectively Madugu, 2001. Iron ore sintering is a complex thermo-chemical process and the qualities of sinters being produced affect the blast furnace performances in terms of fuel consumption, smooth operation, and rate of production. Nath et al., 2004.
Iron ore pellet is a kind of agglomerated fines which has better tumbling index when compared with the iron ore and it can be used as a substitute for the iron ore lumps both in the bf and for dri production pellets have good reducibility since they have high porosity to normally pellets are reduced considerably faster than sinter.
reduction in sinter strength, reducibility and productivity 11,12. In research carried out in a sinter pot with 65 kg of raw mix, the MgO content of four manufactured sinters was increased from 1.4 to 2.6 by the addition of dolomite to the mix. The iron ore used presents a low MgO content 0.01 and a high Al 2 O 3 content 2.99.
8 mm. HPS feed consists of iron ore as pellet feed fines, return fines and iron and steel work remnants, filter dust, additives and binders like limestone, dolomite, bentonite and coal dust. These micro pellets are fed onto a sinter machine to produce sinter cake, which is then broken down and smelted in a
2. COMPARION BETWEEN SINTER AND PELLET SINTER PELLET. Low grade50-55- it contains High grade60-65- iron ore raw materials mixed together pellets are formed from with binding materials e.g. iron beneficiated iron. ore sinter comprises of limestone, iron ore and bentonite. Larger in size 12.5-50.0mm.
The iron ore used presents a low MgO content 0.01 and a high Al2O3 content 2.99. It was seen that raising the MgO content in the sinter, from 1.4 to 2.6, increased the FeO content and decreased productivity and the RI, RDI and TI indices 13. 2.1.4.
Jul 15, 2014 Sinter quality Sinter quality is defined as a combination of its cold strength, its degradation during reduction at low temperatures, its reducibility and its high temperature properties that are related to the temperatures at which the sinter starts to soften, melt and drip during reduction at temperatures above 1150 deg C. All of these properties, which are normally evaluated according to standardized
b Relative reducibility, total mass loss at the end of 3 h see IS 11292-1985 Determination of relative reducibility of iron oxides lump ore, sinter and pellets 5. Softening characteristics see IS 9660- 1980 Guidelines for determination of softening characteristics of iron core pellets
bond in pellets. The developed sinter shows good shatter index 92, tumbler index 67.5 abrasion index 7.5 and reducibility index 70 and low reduction degradation index 27, which are compara-ble with the conventional iron ore sinter made in
sinter or pellets in the make up of their charge for various reasons, overall, lump ores.sinter and pellets are used in proportions of 121 in blast furnace burdens 14. 1.1.2 Sintering process Sintering of iron ore is a process 5,6,8 in which air is drawn down through a bed of raw mixture of iron ore