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Sponge Iron - an overview | ScienceDirect Topics

DRI, also known as sponge iron, is the product of reducing iron oxide in the form of iron ore and steel plant wastes into metallic iron, below the melting point of iron and typically in the range of 800–1200 °C. Iron oxide is charged into shaft furnace, rotary kiln, or fluidized beds in the form of pellet, iron ore lumps, or fines. The reduction takes place using gaseous reductants (CO + H ...

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sponge iron process

Jul 29, 2010· The carbon content in sponge iron produced by coal based rotay kiln processes are generally low and is in the range og 0.08% to 0.20%.The carbon content in gas based processes can be controllrd to a level of 1.5% to 2.0% based on requirement for steel making. Size Distribution:

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Sponge iron making process - SlideShare

Nov 09, 2014· Sponge iron making process 1. ALBERTUS SEPTYANTOKO 2712100014 2. IRON ORE • Iron = 65-67 % • SiO2 + Al2O3 = 2-3 % • CaO + MgO = 0,5-1 % • Sulphur = 0,02 % max • Phosphorus = 0,04 % max Chemical Composition • Size = 5-18 mm • Shatter Index = +95 % • Tumbler index = +88 % • Reducibility Index = +94 % • Thermal Degradation Index = 5 % Physical Composition

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Energy Audit Methodology of Sponge Iron Manufacturing ...

Conducting complete energy audit (both process and utility) of a sponge iron unit is challenging as there is no laid down procedure to audit the process side. Further, the average heat to power ratio (kW th /kW e ) of sponge iron plants ranges from (25:1) to (31:1). This shows that the manufacturing process mostly uses thermal energy and application of electrical energy is insignificant.

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BENEFICIATION OF IRON ORE - nitrkl.ac.in

polishing compounds and sponge iron industries. Iron ore belongs to Precambrian stage and its deposit is present in massive, laminated, friable and also in powdery form. Its major deposits are in Jharkhand, Orissa, Chhattisgarh, Karnataka and Goa States. 2.1.1 Hematite: It is most important iron ore mineral main source for industries.

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How do you determine how much of the excess reactant is ...

Mar 07, 2014· Once you have identified the limiting reactant, you calculate how much of the other reactant it must have reacted with and subtract from the original amount. > A Sandwich-Making Analogy This video from Noel Pauller uses the analogy of making sandwiches. The general problem Given the chemical equation and the masses of reactants, determine the mass of excess reactant and the …

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DPMO Formula | How To Calculate DPMO (Excel Template)

Tata Sponge is in the business of iron and provides finished iron to the steel company. And they manufacture 520 iron rods and provide to the research and development department only 500 rods for evaluation and research and development department found that there are 635 defects in the iron rod. Calculate the DPMO.

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Sponge Iron Plant - entrepreneurindia.co

Sponge iron is the product created when iron ore is reduced to metallic iron, usually with some kind of carbon (charcoal, etc), at temperatures below the melting point of iron. This results in a spongy mass, sometimes called a bloom, consisting of a mix of incandescent wrought iron and slag.

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SPONGE IRON PLANT

sponge iron, originating from Iron Ore, namely, silica and alumina and the sulphur and phosphorous contents adversely affect the economics in subsequent steel making operation. Therefore, the ore should be high in iron content and low in gangue, Physical Specification – Size - 5-20 mm Oversize - < 5 % max

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Glossary of Terms/ Definitions Commonly Used in Iron ...

SPONGE IRON/ DIRECT REDUCED IRON (DRI)/ HOT BRIQUETTED IRON (HBI) : Direct Reduced Iron (DRI): Solid metallic iron product obtained upon Direct Reduction of high grade iron ore in solid state itself without being converted into liquid form like that in Blast Furnace. Sponge Iron (SI): DRI is also known as Sponge Iron because of its spongy micro structure.

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Modulus of Elasticity Young's Modulus Strength for Metals ...

The following chart gives ultimate strength, yield point and modulus of elasticity data for steel and iron. Engineering Material. Modulus of Elasticity Young's Modulus ... Yield Point X 1000/in 2: Modulus of Elasticity (T) Tension X 1000/in 2. Compression, in terms of T. Shear in terms of T ...

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Strength of Materials Basics and Equations | Mechanics of ...

Where Y S is the Yield Strength and D S is the Design Stress . See our Material Terms and Links page for additional information.. Related: Strength of Materials Area Moment Methods to Calculate Deflection in Beams, Material Specifications and Characteristics - Ferrous and Non-Ferrous, Pinned Columns and Buckling, Moment of Inertia, Section Modulus, Radii of Gyration Equations, Triangular, Hex ...

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TMT Bars Manufacturing Process - JSW Neosteel

It is manufactured using iron ore. JSW NEOSTEEL is toughened high strength HYQST (High Yield Quenched and Self Tempered) TMT Bar conforming to IS 1786:2008,. TMT are hot-rolled from steel billets are subjected to the thermo-mechanical treatment. The HYQST technology ensures a uniform quality across the bar.

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Production of Sintered Components - Höganäs AB

stresses meet a rising yield point and all further particle deformation ceases, i.e. the densification process stops. The deformation strengthening of the powder particles can be made evident by means of X-ray structural analysis. In, three photo-records of X-ray Fig. 4.4 back-reflections are shown, obtained (A) from a commercial sponge-iron

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Tutorial: Delayed Coking Fundamentals

fuel grade (shot or sponge), anode grade (sponge), and electrode grade (needle) since start-up of the company's first calcining operation in 1937. With on -going research in the area of delayed coking since 1942, Great Lakes Carbon (GLC) has operated delayed coking pilot units including an excellent large …

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Steelmaking in Induction Furnace – IspatGuru

May 24, 2018· Sponge iron has uniform chemical and physical characteristics. It has low percentage of tramp metallic elements (around 0.02 %) and low sulphur content. Additives used for making of steel in an induction furnace are normally ferro alloys. Ferro alloys are to be checked that they comply with the specification for size, grading and composition ...

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Volumetric Weight Calculator - Good Calculators

Volumetric Weight (Kilograms) = [Width x Length x Height] / 366 (Inches) To use our online Volumetric Weight Calculator, simply enter the dimensions of the package that is being transported and that you'd like to know the volumetric weight of. Our Volumetric Calculator calculates in both centimetres and inches, and will update your total as you ...

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The Extraction of Iron - Chemistry LibreTexts

Aug 15, 2020· 3684. Contributed by Jim Clark. Former Head of Chemistry and Head of Science at Truro School in Cornwall. Table of contents. Contributors and Attributions. This page looks at the use of the Blast Furnace in the extraction of iron from iron ore, and the conversion of the raw iron from the furnace into various kinds of steel.

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Memory Density Guide and Ratings - Updated 2021

Jun 08, 2020· The measurements are 12 inches x 12 inches x 12 inches. Then they weigh it. At the low end of the spectrum, a cubic foot of memory will have a rating of 1.5, meaning it weighs 1.5 pounds per cubic square foot. The densest varieties have a rating of 8.0 or 8 pounds per cubic square foot. By looking at the density of the material when ...

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"DEPHOSPHORIZATION OF STEEL PRODUCED FROM …

scrap, sponge iron and cast iron. The percentage of directly reduced iron in the burden differs from 10 to 95 percent, depending on its inventory and monetary value of manufacturing. Large scale of steel formed through secondary route is alloy steel and plain carbon steel. [2]

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Low-Carbon Production of Iron & Steel: Technology Options ...

Mar 08, 2021· DRI converts raw iron ore to sponge iron, a porous, permeable, and highly reactive product that requires treatment with EAF before selling to market. One of the well known hard-to-abate sectors, substantial iron and steel industry decarbonization will increase production cost significantly (>120 $/ton) [(ETC, 2018)].

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Theoretical Minimum Energies To Produce Steel

produce steel, would yield significant energy savings. • Effective utilization of the energy contained in the off gases from the blast furnace, coke plant, and direction reduction process is essential. • The best scrap substitute with respect to energy usage is liquid pig iron or hot metal.

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Cantilever Beams - Moments and Deflections

The stress in a bending beam can be expressed as. σ = y M / I (1d) where. σ = stress (Pa (N/m2), N/mm2, psi) y = distance to point from neutral axis (m, mm, in) M = bending moment (Nm, lb in) I = moment of Inertia (m4, mm4, in4) The maximum moment in a cantilever beam is at the fixed point and the maximum stress can be calculated by combining ...

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ppm to percent (%) conversion calculator | number conversion

Percent to ppm converter How to convert ppm to percent. 1% = 1/100. 1ppm = 1/1000000. So. 1ppm = 0.0001%. So to convert from ppm to percent, divide the ppm by 10000:

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Channel Weight Calculator / ismc channel weight ...

Channel Weight Calculator, channel weight calculation formula, ms channel weight calculation formula, ismc channel weight calculation formula, c channel weight calculation formula, steel channel weight calculation formula, ss channel weight calculation formula

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The Determination of Metallic Iron in Sponge Iron ...

Closed crucible reduction of lump powdered mill scale or iron ore by coal: The sequential methodology and mechanism for optimization of process parameters. Advanced Powder Technology 2020, 31 (9), …

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Strategy of periodic reverse current electrolysis to ...

May 15, 2021· The anode and cathode plates were composed of industrial sponge iron from Huaxing Powder Metallurgy Technology Limited Company (Jilin, China). In each experiment, we applied a new plate of sponge iron, which varied in the evenness of the surface. The forward and reverse currents of the DC power supply output (0-300A) could be adjusted continuously.

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Powder Metallurgy Engineering Properties | PickPM.com

Density. Most properties of a powder metallurgy (PM) part are closely related to its final density. This density is the mass per unit volume of the part expressed in grams per cubic centimeter (g/cm³). Normally, the density of structural parts is reported on a dry, un-impregnated basis, while the density of bearings is reported on a fully oil ...

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