Blast furnace operation with prereduced burdens

Woolf, P.L.

doi:10.1007/bf03378422

Cited by 2 publications

(2 citation statements)

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“…[5][6][7][8] While using DRI in any of these units certain physical strength is essential for safe handling by mechanical system consisting of bucket elevator, belt conveyor, magnetic cranes, charging chute/hopper and bin. The DRI is expected to sustain impact during handling, abrasion during movement and crushing strength during storage and burden feeding inside the furnace.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Additives and Reductants on the Strength of Reduced Iron Ore Pellet

Gupta

Gautam

2003

ISIJ International

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The higher strength of directly reduced iron (DRI) in pellet form is useful in handling, storing and charging from height without breakage. The DRI pellets commonly exhibit 60 kg cold crushing strength. In this work the effect of reduction temperature, sintering time, quantity/quality of additives and manner of reduction by solid reductant has been studied. The reduced pellet strength could be increased by improving metallic bonds by offering higher reduction temperature (max. 1 250°C) and subsequent sintering. The strength was found to increase by adding slag forming constituents e.g. bentonite. The strength of reductant mixed reduced pellet was observed to be affected by the nature of reductant. The reductant with low bulk density and lower carbon content provided higher voidage rendering lower strength. The cold crushing strength (CCS) of reduced pellets observed in this study ranged from 5 to 200 kg exhibiting ductile to brittle behaviour during deformation.

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Section: Introductionmentioning

confidence: 99%

The Effect of Additives and Reductants on the Strength of Reduced Iron Ore Pellet

Gupta

Gautam

2003

ISIJ International

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“…The DRI if used in the blast furnace has to be strong enough to sustain impact (while dropping from top), wear (while sliding down the blast furnace) and also during the course of reduction to sustain the weight of over burden retaining its shape and size. Several workers 5,6) have suggested the possible use of DRI as a feed to the blast furnace if it could be produce with high strength.…”

Section: Introductionmentioning

confidence: 99%

DRI Apparent Density and Its Strength

Gupta

Shaik

2005

ISIJ Int.

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Blast furnace operation with prereduced burdens

Cited by 2 publications

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The Effect of Additives and Reductants on the Strength of Reduced Iron Ore Pellet

The Effect of Additives and Reductants on the Strength of Reduced Iron Ore Pellet

DRI Apparent Density and Its Strength

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