scholarly journals PRODUCTION OF IRON ORE PELLETS BY UTILIZATION OF SUNFLOWER HUSKS

2021 ◽  
Vol 27 (4) ◽  
pp. 167-171
Author(s):  
Andrii Koveria ◽  
Lina Kieush ◽  
Maksym Boyko ◽  
Maksym Yaholnyk ◽  
Natalia Poliakova
Keyword(s):  
Natural Gas ◽  
Global Economy ◽  
Iron Ore ◽  
Steel Production ◽  
Iron And Steel ◽  
Iron Ore Pellets ◽  
Ore Pellets ◽  
Iron Ore Pellet ◽  
Mitigate Climate Change

Steel production is the most dynamic industry and one of the key sectors for the development of the global economy. The growing production of iron ore increases the need for its beneficiation and granulating for subsequent use in the production of iron and steel. As a result, the number of CO2 emissions and harmful substances increases, which negatively affects both society and the environment. It is important to study the use of biomass for the production of iron ore pellets. Lignocellulosic biomass is a renewable and sustainable source of heat and energy that can mitigate climate change. The efficiency of using sunflower husks on the combined machine “straight grate - rotary kiln - annular cooler” to partially replace natural gas in the production of iron ore pellets has been studied. The influences of alternative fuel use on technological indicators of the process and quality of iron ore pellets have been analyzed. It was found that the combustion of sunflower husks generates enough heat to obtain iron ore pellets with good strength. The main indicators of the quality of iron ore pellets remain at the same level as the iron ore pellet quality when using natural gas.

scholarly journals An Analytical Way to Comparing the Affective Parameters on Iranian Pellet Strength

2020 ◽  
Vol 4 (1) ◽  
pp. 35-41
Author(s):  
Y. Shajari ◽  
A. Reyhanizadeh ◽  
N. Towhidi ◽  
Z. S. Seyedraoufi ◽  
H. Bakhtiari
Keyword(s):  
Iron Ore ◽  
Direct Reduction ◽  
Steel Production ◽  
Reduction Process ◽  
Sponge Iron ◽  
Production Chain ◽  
Iron And Steel ◽  
Iron Ore Pellets ◽  
Ore Pellets ◽  
Iron And Steel Production

Iron ore pellets are the raw materials for direct reduction process of iron ore to sponge iron pellets and is an important step in the iron and steel production chain. Many of the defects in direct reduction and steel making processes could be identify in the iron ore processing stage. Therefore, the purpose of this study was to select the correct suppliers of iron ore pellets for direct reduction units based on criteria affecting the strength of cooked pellets, which played a key role in optimizing the production criteria of sponge iron and ultimately increasing production efficiency in the steelmaking stage which can be very effective. For this purpose, using the hierarchical analysis model, the parameters affecting the strength of pellets have been identified and studied by experts of several iron and steel production units, and finally, for example, several iron ore pellet production plants have been compared and ranked. According to AHP decision criteria, particle size is the most important parameter affecting the strength of cooked pellets.

Evaluation of the quality of iron ore pellets

Metallurgist ◽  
1974 ◽  
Vol 18 (10) ◽  
pp. 734-736
Author(s):  
G. A. Grebenkin ◽  
E. A. Pakhomov ◽  
V. I. Konev
Keyword(s):  
Iron Ore ◽  
Iron Ore Pellets ◽  
Ore Pellets

Reduction Behavior of Iron Ore Pellets with Simulated Coke Oven Gas and Natural Gas

2013 ◽  
Vol 84 (11) ◽  
pp. 1085-1097 ◽  
Author(s):  
Elsayed A. Mousa ◽  
Alexander Babich ◽  
Dieter Senk
Keyword(s):  
Natural Gas ◽  
Iron Ore ◽  
Coke Oven ◽  
Coke Oven Gas ◽  
Reduction Behavior ◽  
Iron Ore Pellets ◽  
Ore Pellets

Effect of Blaine Fineness on the Quality of Hematite Iron Ore Pellets for Blast Furnace

2014 ◽  
Vol 36 (2) ◽  
pp. 83-91 ◽  
Author(s):  
Jagannath Pal ◽  
Satadal Ghorai ◽  
Sanjay Agarwal ◽  
Bikash Nandi ◽  
Tapas Chakraborty ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Iron Ore ◽  
Iron Ore Pellets ◽  
Ore Pellets

Microwaves for Reduction of Iron Ore Pellet by Carbon

1994 ◽  
Vol 366 ◽  
Author(s):  
Idalia Gomez ◽  
Juan A. Aguilar
Keyword(s):  
Heat Supply ◽  
Iron Ore ◽  
Heat Transfer Process ◽  
Reduction Kinetics ◽  
Iron Ore Pellets ◽  
Ore Pellets ◽  
Metallic Oxides ◽  
Reduction Of Iron ◽  
Iron Ore Pellet ◽  
Work Done

ABSTRACTResults of reducibility tests of reduction conducted on iron ore pellets by carbon are presented in this work. Work done is centered on reduction kinetics by carbon with conventional heat supply (heat transfer process) compared with reduction kinetics where heat is supplied by microwaves to whole volume. Ore used in this work is called “Alzada” which has reducibility characteristics well known, and is often used as standard for comparison. Importance of using actual pellet instead of dust is pointed. This work is part of a project related with microwaves for reduction of metallic oxides.

Effect of mechanical charge activation in a disintegrator on the quality of iron-ore pellets

Metallurgist ◽  
1983 ◽  
Vol 27 (3) ◽  
pp. 77-80
Author(s):  
F. M. Zhuravlev ◽  
E. L. Druz' ◽  
A. A. Davidyuk ◽  
I. A. Khint ◽  
L. A. Drozhilov ◽  
...  
Keyword(s):  
Iron Ore ◽  
Iron Ore Pellets ◽  
Ore Pellets ◽  
Mechanical Charge

Effect of the Composition and Characteristics of the Charge Materials on the Quality of Iron-Ore Pellets

Metallurgist ◽  
2015 ◽  
Vol 59 (3-4) ◽  
pp. 212-215 ◽  
Author(s):  
A. S. Timofeeva ◽  
T. V. Nikitchenko ◽  
V. V. Fedina ◽  
V. O. Kazartsev
Keyword(s):  
Iron Ore ◽  
Charge Materials ◽  
Iron Ore Pellets ◽  
Ore Pellets ◽  
Effect Of The Composition

Quality of iron-ore pellets made from magnetite-quartzite concentrates

2009 ◽  
Vol 39 (5) ◽  
pp. 375-378 ◽  
Author(s):  
Yu. S. Yusfin ◽  
T. Ya. Malysheva ◽  
S. V. Plotnikov
Keyword(s):  
Iron Ore ◽  
Iron Ore Pellets ◽  
Ore Pellets ◽  
Magnetite Quartzite

scholarly journals The potential of using of alkaline earth bentonite clays of Ukraine in the production of iron ore pellets

2020 ◽  
Vol 1,2020 (1,2020 (124)) ◽  
pp. 36-43
Author(s):  
Chuprinov E ◽  
Lyalyuk V ◽  
Zhuravlev F ◽  
Kassim D ◽  
Lyakhova I
Keyword(s):  
Chemical Composition ◽  
Alkaline Earth ◽  
Iron Ore ◽  
Bentonite Clay ◽  
Rheological Characteristics ◽  
Iron Ore Pellets ◽  
Ore Pellets ◽  
Exchange Complex ◽  
Bentonite Clays

Objective: to analyze and determine the potential of alkaline earth bentonite clays of Ukraine for use as a binder in the production of iron ore pellets. Methods: performing rheological studies of bentonite clay samples and their chemical analysis, electron microscopic studies of samples. Results: the analysis of the chemical composition and requirements for the rheological characteristics of bentonite clays used in the production of iron ore pellets at metallurgical enterprises of Russia and Ukraine is carried out. The swelling indicators and water absorption of monoionic forms of bentonites of some deposits in water of different hardness are given. The quality of pellets with bentonites, that have a different exchange complex, during an industrial water of various hardness usage is examined. The analysis of the mineralogical and chemical composition, as well as the size and composition of the exchange complex of alkaline-earth bentonite clays of the Cherkassk deposit (Ukraine), which has the largest reserves of such clays in the CIS is carried out. It is shown that clays suitable for the production of pellets are located near the surface of the earth. A comparative analysis of the strength characteristics of pellets using bentonites with an alkaline and alkaline-earth exchange complex is presented. Scientific novelty: it was shown that despite the low swelling of alkaline-earth bentonites, the quality of pellets with these bentonites, in some cases, is slightly lower, and in certain conditions is not inferior to the quality of pellets with alkaline bentonites at the same flow rate. Practical significance: for real industrial conditions it is shown that the increase in water hardness leads to partial or complete (depending on the value of hardness) replacement of alkaline exchange complex with alkaline earth and conversion of alkaline bentonite clay into alkaline earth with corresponding rheological characteristics, deterioration of lumps and the need to increase the content of bentonite in the charge. In the case of increased hardness of water in the concentrate, it is economically feasible to use in the production of alkaline earth pellets bentonite clay, if it is cheaper than alkaline.

Sign in / Sign up

Export Citation Format

Share Document