High Temperature Reduction of the Stiff Vacuum Extrusion Briquettes under the ITmk3 Conditions

Bizhanov, Aitber; Павлов, А. В.; Chadaeva, Olga; Dalmia, Yogesh; Mishra, B.

doi:10.2355/isijinternational.54.1450

Cited by 8 publications

(6 citation statements)

References 4 publications

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“…The stiff-extrusion technique which was mastered by J. C. Steel & Sons (USA), had its 1st industrial application in the year 1993 [1]. In this cold briquetting technology various steel plant by-products can be easily agglomerated using very few amount of binder material and also cost effective than other agglomerating processes, due to their less processing steps.In this advanced technology homogenizing mixture of raw materials with the moisture content of 12-16% passes through the vacuum chamber and then pushed through the die holes by pressure 3-3.5 Mpa [2]. The industrial stiff-extrusion process lines shown in figure 1.…”

Section: Introductionmentioning

confidence: 99%

A Novel Technique for Making Cold Briquettes for Charging in Blast Furnace

Mohanty

Mishra

et al. 2016

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Different metallurgical wastes are generated during pyro processing of iron ore, which is used for making sponge iron or hot metal and for producing steel. Apart from these wastes, coke fines are generated during the coke making, and iron ore fines are generated during mining of iron ore. Although iron ore fines are used for making pellet after beneficiation still, it generates a huge quantity of iron ore waste during beneficiation with comparatively lower iron content. In the present study, briquettes are made by a stiff extrusion process from metallurgical waste like iron ore fines and coke fines with the addition of Portland cement as a binder and clay as a rheology modifier. Physical properties of the briquettes are evaluated, and reducibility of the briquettes is studied in comparison to lumpy iron ore. Phase analysis and microstructural analysis of the briquettes and lumpy iron ore are carried out after firing at different temperatures in the simulated blast furnace condition. Physical and mineralogical properties are correlated with the reducibility of the briquettes and lumpy iron ore. Briquettes made by a stiff extrusion process show a better mechanical strength fired at a different temperature to take the load of burden and better reducibility than lumpy iron ore. The briquettes after self-curing are charged to a 23 mt3 blast furnace which shows encouraging results.

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Section: Introductionmentioning

confidence: 99%

A Novel Technique for Making Cold Briquettes for Charging in Blast Furnace

Mohanty

Mishra

et al. 2016

IOP Conf. Ser.: Mater. Sci. Eng.

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“…At the same time, the average length of BREX in the storage area does not exceed 2.5 diameters. The decomposition of the elongated BREX during transportation by conveyors and discharge on the floor was described by Bizhanov et al 6) The reason for this is the bending of the elongated BREX due to its gravity at the exit from the extruder that resulted in generation of 2-3 concentrators of the strain in the areas of the future decomposition of this BREX.…”

Section: Brex For Full-scale Trial Productionmentioning

confidence: 99%

“…[1][2][3][4][5][6] The present paper considers the application of this technology for the production of the Manganese Ferroalloys. We have attempted to apply the stiff extrusion agglomeration technology in the industrial production of manganese ferroalloys, Silicomanganese in particular.…”

Section: Introductionmentioning

confidence: 99%

Extruded Briquettes – New Charge Component for the Manganese Ferroalloys Production

Bizhanov¹,

Курунов²,

Podgorodetskyi

et al. 2014

ISIJ Int.

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The results of the laboratory study and the full-scale industrial testing of the extruded briquettes (BREX) application for the production of the Ferroalloys are discussed. Stiff vacuum extrusion agglomeration provides for the high metallurgical properties of the agglomerates leading to the economic attractiveness of this technology. BREX can be efficiently used as one of the essential charge component (up to 30% of the ore part of the charge) for the Silicomanganese smelting thus improving technical and economical parameters of the furnace and decreasing the self-cost of the Silicomanganese production.

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“…Results indicate that BREX could achieve a metallization degree comparable with metallization of traditional DRI. It has also been demonstrated that BREX may be considered as a charge component for rotary hearth furnaces (RHF) [17].…”

Section: Extrusion Of Metals Polymers and Food Productsmentioning

confidence: 99%

Stiff Vacuum Extrusion for Agglomeration of Natural and Anthropogenic Materials in Metallurgy

Курунов¹,

Bizhanov²

2018

Extrusion of Metals, Polymers and Food Products

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Recently developed concept of stiff vacuum extrusion (SVE) agglomeration for iron and steel making helps to innovate the briquetting technology and make it competitive with sintering. The results of the R&D in this field show that extrusion attributes very specific properties to the agglomerated products-BREX (extrusion briquettes), which favors their wide utilization in metallurgy-among them are quick strengthening of the BREX, their high hot strength, very low self-cost, and maintenance values. A set of the successful projects have been realized in iron making, ferroalloy production, and direct-reduced iron (DRI) production.

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High Temperature Reduction of the Stiff Vacuum Extrusion Briquettes under the ITmk3 Conditions

Cited by 8 publications

References 4 publications

A Novel Technique for Making Cold Briquettes for Charging in Blast Furnace

A Novel Technique for Making Cold Briquettes for Charging in Blast Furnace

Extruded Briquettes – New Charge Component for the Manganese Ferroalloys Production

Stiff Vacuum Extrusion for Agglomeration of Natural and Anthropogenic Materials in Metallurgy

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