Innovative Development on Agglomeration of Iron Ore Fines and Iron
ABSTRACT In steel industry and in mines, a significant amount of ultra-fines waste iron oxides and iron ore fines is generated. Utilizations of these fines are required to reduce the environmental hazards and conserve the natural resources. Some of these fines are normally used in sintering practice. However, sintering has a limitation of accepting ultra-fines materials. …
Satadal Ghorai | National Institute of Technology, Durgapur
Pellet-Sinter composite agglomerate (P-SCA) is a mass containing acid pellet and basic sinter. In... more Pellet-Sinter composite agglomerate (P-SCA) is a mass containing acid pellet and basic sinter. In this study, the green pellets (10-15 mm), made up of Noamundi iron ore fines (2150 Blaine No) were mixed with a basic sinter mix of same ore of coarser size (-10 mm).
Development of carbon composite iron ore micropellets by …
Iron ore microfines and concentrate have very limited uses in sintering processes. They are used in pelletization; however, this process is cost intensive. Furthermore, the microfines of non-coking coal and other carbon-bearing materials, e.g., blast-furnace flue dust (BFD) and coke fines, are not used extensively in the metallurgical industry because of operational difficulties and …
Iron Ore Sintering: Raw Materials and Granulation
Sintering is an agglomeration process that fuses iron ore fines, fluxes, recycled products, slag-forming elements and coke. The purpose of sintering is to obtain a product with suitable ...
Study on Mechanical Properties and Reduction Behavior of
Fines iron ore oxides are generated during mechanized mining as well as comminution, beneficiation, transportation, and agglomeration processes. These iron ore fines need to be taken care of and reused in ironmaking. The present work focuses on the utilization of those fines by agglomeration techniques and converting them into reduced composite …
Evaluation of Iron Ore Concentrate and Micropellets as …
ABSTRACT The use of iron ore concentrate and micropellets as sinter feed was evaluated. Five mixtures containing different proportions of concentrate and micropellets, together with iron ore fines, were granulated and sintered in a pilot scale sinter plant. It was found that the addition of iron ore concentrate and/or micropellets to the sinter feed resulted in a significant …
Conversion of Sponge Iron From Low Grade Iron …
However in sintering, there is some restriction of using microfines. It is possible to use in pelletization, but pelletization is a cost intensive process due to its high temperature curing. ..., Allowing them lower grades of scrape for the rest of …
Development of carbon composite iron ore micropellets by …
Iron ore microfines and concentrate have very limited uses in sintering processes. They are used in pelletization; however, this process is cost intensive.
Development of carbon composite iron ore micropellets by …
Iron ore microfines and concentrate have very limited uses in sintering processes. They are used in pelletization; however, this process is cost intensive. Furthermore, the microfines of non-coking coal and other carbon-bearing materials, e.g., blast-furnace flue dust (BFD) and coke fines, are not used extensively in the metallurgical industry because of operational …
Iron Ore Sinter
Automated optical image analysis of natural and sintered iron ore. E. Donskoi, ... J.R. Manuel, in Iron Ore, 2015 4.2.2 Sinter. Low-temperature (< 1300 °C) iron ore sinter is an agglomerate of unmelted and partially melted nuclei particles (+ 1 mm) and a matrix bonding phase produced from the melting of fine ore (− 1 mm) and flux particles, with the majority of melt formation …
Blast Furnace Flue Dust as a Potential Carbon Additive in Hematite Ore
Iron ore microfines and concentrate have very limited uses in sintering processes. They are used in pelletization; however, this process is cost intensive. Furthermore, the microfines of non-coking … Expand. 9. Save. Mill scale as a potential additive to improve the quality of hematite ore pellet.
Utilization of Microfines in Iron and Steel Making …
A huge quantity of iron ore fines (60 % of ore) is generated during production of lump ore. Moreover, iron oxide fines are generated in different units of steel plants such as blast furnace, LD converter, mills etc. Coarser sizes of these are used in sinter plant. However in sintering, there is some restriction of using microfines. It is possible to use in pelletization, but pelletization is a ...
The Influence of Alkali Metals on the Sintering Mineralization …
To investigate the influence of alkali metal compounds in different forms on the sintering mineralization process of iron ore, the basic sintering characteristics of iron ore with …
Role of MgO and Its Different Minerals on Properties of Iron Ore …
It may be generated from the beneficiation of lean grade ore as concentrate. Sintering has limitations of using microfines beyond certain level (30–40 %). Therefore, in order to increase the utilization of microfines or lean ore concentrate replacing good quality lump ore, use of pellet in blast furnaces has to be increased considerably.
Utilization of micro-fines in sinter making and its
Sintering is an agglomeration process that fuses iron ore fines, fluxes, recycled products, slag-forming elements and coke. The purpose of sintering is to obtain a product with …
Development of Pellet-Sinter Composite Agglomerate …
Microfines of iron ore are generally utilized in Blast furnace in form of indurated pellets because sinter ... the utilization of fines in iron making. Sintering has a size limitation, while pelletization can utilize ultra-fine iron oxides or concentrates, but it is involved with high energy
Development of carbon composite iron ore micropellets …
Iron ore microfines and concentrate have very limited uses in sintering processes. They are used in pelletization; however, this process is cost intensive. Furthermore, the microfines of non-coking coal and other carbon-bearing materials, e.g., blast-furnace flue dust (BFD) and coke fines, are not used extensively in the metallurgical industry because of operational …
Prediction and Optimization of Internal Return Fines Generation in Iron
Li-Heng Hsieh, Effect of Iron Ore Concentrate on Sintering Properties, ISIJ International, 57, 11, 1937-1946, 2017. [10] Satendra Kumar, Arvind Kumar Jaiswal, Rameshwar Sah, Marutiram Kaza, Manjini Sambandam and Prabhat Kumar Ghorui, An Innovative Approach for Utilization of Iron Ore Microfines (-150 microns) in Sintering, AISTech 2019, pp 495-499.
A Process For Sintering Involving Iron Ore Microfines
ABSTRACTTITLE: A PROCESS FOR SINTERING INVOLVING IRON ORE MICROFINES.The present invention relates to a process for sintering of iron ore microfines (below 150 micron particles) through micropelletization so that they can be used for commercial sintering process. It deals with the iron ore microfines utilization in sinter making by micro ...
Reaction Mechanism of In-situ Carbon in Hematite Ore …
This in-situ reduced iron oxide may be beneficial in the sintering of pellets. The possibility of reduction of ferric oxide in pellets followed by its re-oxidation in the final stage has been studied thermodynamically and experimentally. ... Iron ore microfines and concentrate have very limited uses in sintering processes. They are used in ...
Characterization and In Situ Abatement of SOx, NOx, and PCDD/Fs in Iron
To minimize the emissions, it is recommended to minimize the VM in the solid fuel, the microfines in the raw materials, LOI in the iron ore fines, and the usage of calcined lime. ... Ji Z, Gan M, Fan X et al (2017) Characteristics of PM 2.5 from iron ore sintering process: influences of raw materials and controlling methods. J Clean Prod 148:12 ...
Iron ore sintering
The sintering process begins with preparation of a sinter mixture consisting of iron ore fines, fluxes, solid fuel (called bonding agents in Japan) such as coke breeze, and return fines from the sinter plant as well as recycled ferruginous materials from downstream iron and steelmaking processes.
Utilization of micro fines in iron and steel making process
Iron oxide micropellets can be used in sintering. High fluxed sinter produced from waste micro fines may be used as flux in refining. Carbon composite micropellet has been developed for …
Factors influencing the microstructures of iron ore …
Within the range of compositions of interest to industrial iron ore sintering, an increase of CaO/SiO 2 ratio facilitates the growth of the SFCA phase and the addition of Al 2 O 3 increases the stability of the SFCA at elevated …
(PDF) Iron ore sintering. Part 1. Theory and practice of the sintering …
Assimilation of iron ore during sintering The sintering behaviour of three Marra Mamba type iron ores has been studied [22] in a pilot plant by sintering in various operating conditions in combination with different proportions of four Brazilian ores, two Australian hematite ores and one pisolite ore. In certain conditions the use of Marra ...
AN INNOVATIVE SOLUTION FOR REDUCTION IN MICROFINES …
In Sintering Plant-3, coke is received from various sources which is then crushed and sent for sinter making. In sinter making, Coke Breeze of-3mm size is added to the sinter charge along with the iron ore fines, lime stone and dolomite as a solid fuel …
The Sintering Process of Iron Ore Fines
The Sintering Process of Iron Ore Fines. satyendra; March 9, 2013; 9 Comments ; flux sinter, Iron ore fines, self fluxing sinter, sinter, sinter machines, Stright line machine. circular machine, super fluxed sinter,; The Sintering …
An Innovative Approach for Utilization of Iron Ore Microfines …
DOI: 10.33313/377/052 Corpus ID: 182773621; An Innovative Approach for Utilization of Iron Ore Microfines (-150 microns) in Sintering @article{Sah2019AnIA, title={An Innovative Approach for Utilization of Iron Ore Microfines (-150 microns) in Sintering}, author={Prakash Sah and A. Kumar and Michał Kaza and Srikumar Ghorui and Ravikumar Sambandam and Milan Jaiswal}, …
(PDF) Iron Ore Sintering: Process
Sintering is a thermal agglomeration process that is applied to a mixture of iron ore fines, recycled ironmaking products, fluxes, slag-forming agents and solid fuel (coke).
Prediction and Optimization of Internal Return Fines …
Prior to dispatch of sinter to the blast furnace for hot metal production, the sinter product from the sinter cooler is screened to remove smaller/finer particles. The undersize so …