sponge iron materials flowsheet

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Project Report on SPONGE IRON REDUCTION PLANT ,

Sponge Iron is a recognized alternative to steel scrap as a raw material for the manufacture of various steel products The twin issues of rapid depletion of Coking Coal reserves and the scarcity of indigenous scrap, made the Government of India support production of sponge iron in the country“Sponge iron is a metallic product produced ....

Powder metallurgy - Wikipedia

Powder metallurgy (PM) is a term covering a wide range of ways in which materials or components are made from metal powdersPM processes can avoid, or greatly reduce, the need to use metal removal processes, thereby drastically reducing yield losses in manufacture and often resulting in lower costs Powder metallurgy is also used to make unique materials impossible to get from melting or ....

DESIGN OF WASTE HEAT RECOVERY SYSTEM IN A ,

21 Flow Sheet of Sl/RN Process 7 22 Metallic Radiation Recuperator 17 23 Regenerator 18 24 Waste Heat Boiler 18 25 Heat Pipe 19 26 Economiser 21 27 Plate Heat Exchanger 23 31 Flow Sheet of Typical Sponge Iron Plant 27 51 Modified Flow Sheet of SL/RN Process 36 52 Annual Cost- ,...

Midrex shaft process - SlideShare

Dec 15, 2014· In this process, the chemically bonded oxygen in the iron ore is removed using a high temperature reducing gas composed of “hydrogen (H2) and carbon monoxide (CO)” to produce metallic iron (Fe) 3 Feed Materials • It has processed iron oxide pellets and lumps ores forms • Feed materials have low grade high sulfur 4...

MIDREX® Process - Midrex Technologies, Inc

Jul 28, 2021· As the iron ore descends through the furnace by gravity flow, it is heated, and the oxygen is removed from the iron ore (reduction) by counterflowing gases that have a high H₂ and CO content These gases react with the iron oxide in the iron ore and convert it to metallic iron,...

SPONGE IRON PRODUCTION FROM ORE -COAL ,

products [1-2] In the year 1908 use of tunnel kiln started for iron oxide reduction This process was invented by ESieurin as Hoganas process [3] In 1954, more kilns came in operation in SWEDEN and USA Presently it is more popular in China for sponge iron production from beneficiated iron ,...

Water Atomization Process: Part Two :: Total Materia Article

Figure 2: Flow-sheet for the Höganäs Water-Atomizing Process The raw material for this process is a carefully selected iron scrap and sponge iron from the process described in the preceding paragraph This raw material (1) is melted down in an electric arc furnace of 50 tons capacity (2) where, if desired, alloying elements can be added...

OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION ,

1 Krupp Sponge Iron Process The Krupp Sponge iron process uses a rotary kiln for the reduction of high grade lump ores or pellets (Fig 1) The feed is introduced together with reducing and de-sulphurizing agents (lime-stone or raw dolomite) into an inclined rotary kiln, heated counter current to the flow of hot gas and reduced to form sponge ....

Project Report on sponge iron reduction plant ,

Sponge Iron is a recognized alternative to steel scrap as a raw material for the manufacture of various steel products The twin issues of rapid depletion of Coking Coal reserves and the scarcity of indigenous scrap, made the Government of India support production of sponge iron in the country“Sponge iron is a metallic product produced ....

CASE STUDY ON THRESHOLD PROBLEM Sponge Iron ,

The aim of this work is to modify the flow sheet of the existing system to reduce energy consumption used per tonne production of sponge iron The first step to achieve this aim is to extract the required data from the process flow sheet, shown in Fig 1 These data are summarized in Table 2...

Abrasive Blasting Operations, Engineering Control and Work ,

remove "flashingll (excess material) from molded plastic or rubber Results of a comprehensive ~IOSH survey undertaken for development of the pUblication "Abrasive Blasting Respiratory Protective Practices" --and referenced hereaft er as lithe NIOSH surveyll --indicate that abrasive blastillf! is used most often to clean iron and/or steel ....

Coefficient Of Friction Material 1 Material 2 DRY Greasy ,

Brake Material Cast Iron 0,4 Brake Material Cast Iron (Wet) 0,2 Brass Cast Iron 0,3 Brick Wood 0,6 Bronze Cast Iron 0,22 Bronze Steel 0,16 Cadmium Cadmium 0,5 0,05 Cadmium Mild Steel 0,46 Cast Iron Cast Iron 1,1 0,15 0,07 Cast Iron Oak 0,49 0,075 Chromium Chromium 0,41 0,34 ....

DRI production | International Iron Metallics Association

DRI production Direct reduction of iron is the removal of oxygen from iron ore or other iron bearing materials in the solid state, ie without melting, as in the blast furnace The reducing agents are carbon monoxide and hydrogen, coming from reformed natural gas, syngas or coal Iron ore is used mostly in pellet and/or lumpy form...

Sponge Iron | Iron | Steelmaking

Sponge iron is the product created when iron ore is reduced to metallic iron, in the presence of coal, at temperatures below the melting point of iron The external shape of the ore is retained with 30% reduction in weight due to oxide reduction resulting in change in ,...

A discussion of magnetic separation techniques for ,

The early tests shaped the larger pilot testing flowsheet, with the essential elements as follows: •Scalping by low-intensity drum magnet to remove ferromagnetic materials This magnetic stream was combined with the primary ilmenite product Figure 3 Typical chromite flowsheet Figure 2b Ilmenite flowsheet using dry magnetic separation (Elder ....

Steam Reforming of Methane on Sponge Iron: Influence of ,

2) for iron reduction and production of sponge iron or direct reduced iron (DRI) The generation of this gas occurs through methane reforming, which can be done in a reformer or inside the reduction shaft with the sponge iron as a catalyst The latter occurs in the auto-reforming process...

Chapter 4 – Material Balances Note

CBE2124, Levicky 1 Chapter 4 – Material Balances Note: Be sure to read carefully through all the examples in this chapterThe key concepts are best learned by problem solving _____ Material balances: material balances express the constraint of conservation of mass, as applied to a process...

CASE STUDY ON THRESHOLD PROBLEM Sponge Iron ,

The aim of this work is to modify the flow sheet of the existing system to reduce energy consumption used per tonne production of sponge iron The first step to achieve this aim is to extract the required data from the process flow sheet, shown in Fig 1 These data are summarized in Table 2...

Development of energy conservations scenarios for sponge ,

Jan 16, 2011· In sponge iron process variation in temperature of iron ore, coal, dolomite, sponge iron, and waste gas is in the range from 1,020°C to 30°C Though specific heats of these materials vary considerably with change in temperature, in the present work these variations are taken as negligible...

CASE STUDY ON THRESHOLD PROBLEM Sponge Iron ,

The aim of this work is to modify the flow sheet of the existing system to reduce energy consumption used per tonne production of sponge iron The first step to achieve this aim is to extract the required data from the process flow sheet, shown in Fig 1 These data are summarized in Table 2...

ALTERNATIVE ROUTES OF IRON MAKING

The key input material required for sponge iron production is the iron ore Since sponge iron is a solid reduction process, the gangue in the ore is retained in the product Due to oxygen removal there is a reduction in weight by about 30%, percentage of gangue material goes up ,...

FERRONICKEL PRODUCTION AND OPERATION

KEYWORDS: Lateritic nickel ores, nickel pig iron INTRODUCTION Nickel is a very important metal which is widely used in the industry Refined meta4 powder and sponge forms are the main end-product typ The most remarkable consumption area is stainless steel industry as 62% of metallic nickel It is followed by super alloy and nonferrous alloy...

ENVIRONMENTAL - ASPECTS OF THE DIRECT REDUCTION ,

liquid steel from iron ore by the direct reduction route The report was examined at the meeting of experts and environmental management guidance for the direct reduction route to steel making was drafted (2) A period of two months was allowed for participants to submit additional material for inclusion in a revised...

(PDF) COMPARISON OF DIFFERENT COAL BASED DIRECT REDUCTION ,

The iron bearing feed materials, which might include iron ore, steel m ill residues etc, and reductant, including coal, coke, petroleu m coke etc, are ground to pellet fines....

Water Atomization Process: Part Two :: Total Materia Article

Figure 2: Flow-sheet for the Höganäs Water-Atomizing Process The raw material for this process is a carefully selected iron scrap and sponge iron from the process described in the preceding paragraph This raw material (1) is melted down in an electric arc furnace of 50 tons capacity (2) where, if desired, alloying elements can be added...

Iron Ore and Pellets - Vale

Iron Ore and Pellets Vale is the world’s biggest producer of iron ore and pellets, raw materials essential to the manufacture of steel Iron ore is found in nature in the form of rocks, mixed with other elements By means of various industrial processes incorporating cutting-edge technology, iron ore is processed and then sold to steel ....

Detailed Modeling of the Direct Reduction of Iron Ore in a ,

Materials 2018, 11, 1865 2 of 16 Materials 2018, 11, x FOR PEER REVIEW 2 of 15 sponge iron, is cooled in the lower part of the furnace, down to approximately 50 °C, prior to being discharged Figure 1 MIDREX process flowsheet The modeling of a shaft furnace, simulating the reduction of iron ore by syngas, is a powerful...

Costs of Storing and Transporting Hydrogen

exchanger (Flynn 1992) A flowsheet of the Linde process is shown in Figure 1 The same process is represented on a temperature-entropy diagram in Figure 2 The Linde cycle works for gases, such as nitrogen, that cool upon expansion at room temperature Hydrogen, however, warms upon expansion at room temperature In order for hydrogen gas to cool...

US4070180A - Process for the passivation of sponge iron ,

Passivation of sponge iron by a mild reoxidation thereof is effected by contact, at a temperature of 200° to 600° F, with a gaseous atmosphere consisting essentially of 25 to 80% H 2 , 15 to 70% CO and 05% to 40% O 2 for a time in excess of about 1 hour The passivation atmosphere may be produced by dilution of a free-oxygen-containing gas with conventional reducing gas...

Project Report on ms billet casting with induction ,

Detailed Project Report (DPR) on ms billet casting with induction furnace from steel scrap and sponge iron Present Market Position and Expected Future Demand, Technology, Manufacturing Process, Investment Opportunity, Plant Economics and Project Financials comprehensive analysis from industry covering detailed reporting and evaluates the position of the industry by providing insights to ,...