Shaft Furnace Lining Midrex

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Midrex Process for Direct Reduction of Iron Ore – IspatGuru

Midrex Process for Direct Reduction of Iron Ore Midrex is an ironmaking process developed for the production of direct reduced iron (DRI) It is a gas-based shaft furnace process is a solid state reduction process which reduces iron ore pellets or lump ore into DRI without their melting using reducing gas generally formed from natural gas

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Range of Feed Materials

MIDREX Plants can be designed to operate successfully using a wide variety of iron oxide pellets and lump ores including pellets used in blast furnaces In fact some companies have used the MIDREX Process to reduce "BF-grade" pellets when they were unable to obtain "DR-grade" materials in order to maintain steelmaking operations

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Flexibility of Direct Reduction Technology The MIDREX Way

Midrex has the ONLY commercial scale shaft furnace technology that is using syngas derived from coal to produce DRI This plant has been successfully operating since 1999 H2/CO ratio ~0 4 which is the lowest of all DR Plants Consistently uses 70% lump ore (Sishen) in the feed mix

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Direct Reduction Iron Technology Diagram

Midrex Process for Direct Reduction of Iron Ore Midrex is an ironmaking process developed for the production of direct reduced iron (DRI) It is a gasbased shaft furnace process is a solid state reduction process which reduces iron ore pellets or lump ore into DRI without their melting using reducing gas generally formed from natural gas

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shaft furnace lining midrex

shaft furnace lining midrex -usine de matriel de minerai Appendix The iron oxide feed to a Midrex shaft furnace can be in the form of pellets lump ore or a mixture of the two (in O to conductive heat transfer from the kiln lining which is first exposed to the flame and heated before

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Modeling and Simulation of the MIDREX Shaft Furnace

Metallic iron used in steel industries is mostly obtained from a direct reduction process The focus of this study is to simulate the furnace of the MIDREX technology MIDREX technology which is the most important gas-based direct reduced iron (DRI) process in

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Shaft Furnace Direct Reduction Technology

Coke constitutes the major portion of ironmaking cost and its production causes the severe environmental concerns So lower energy consumption lower CO2 emission and waste recycling are driving the iron and steel industry to develop alternative or coke-free ironmaking process Midrex and HYL Energiron are the leading technologies in shaft

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Shaft Furnace

Shaft furnace typical of that used by MIDREX and HYL for gas-based production of DRI Hot reducing gases from reformer may be trimmed by additions of oxygen and/or natural gas Reducing gas enters shaft furnace around the periphery at the bottom of the reduction zone through a bustle pipe that distributes the gases evenly

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DRI production

gas-based shaft furnace processes (Midrex and Energiron being the main ones but there are several others including Finmet which uses iron ore fines as feedstock) - accounting for 82% of 2016 production (72 8 million tonnes) coal based rotary kiln furnaces (mainly in India) -

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Direct Reduced Iron and its Production Processes – IspatGuru

In the gas based plant the reactor the reduction reaction takes place is a shaft furnace The shaft furnace works on counter current principle where the iron ore feed material moves downward in the furnace by gravity and gets reduced by the up flowing reducing gases The pressure and temperature in shaft furnace in HYL process is 5-6 bars and

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Cost Effectiveness Analysis of HYL and Midrex DRI

Cost Effectiveness Analysis of HYL and Midrex DRI Technologies for the Iron and Steel-Making Industry By Saima Baig Dr Brian Murray Advisor April 27 2016 the shaft furnace it can be cooled and compressed to briquetted iron for safe storage and transportation

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Refractory Systems

State-of-the-art brickwork lining concepts for Midrex shaft furnaces 5 IRON STEEL STEULER-KCH Modern ingot casting steelworks need extremely high quality refractory products to line the channels feeding their moulds The steel blocks must be free of non-metallic inclusions and also have

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Shaft furnace for production of iron carbide

8-4-1997Apparatus for the production of iron carbide in a shaft furnace by reacting a carbon containing reducing gas as the process gas with particulate metal oxide material for an extended residence time at low temperature including residence time and operating temperature controls

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Shaft Furnace Direct Reduction Technology

Midrex and HYL Energiron are the leading technologies in shaft furnace direct reduction and they account for about 76 % of worldwide production They are the most competitive ways to obtain high quality direct reduced iron (DRI) for steelmaking

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GASIFICATION AND THE MIDREX? DIRECT REDUCTION PROCESS

The MIDREX Process performs the iron ore reduction activities inside a tall vertical reactor called the MIDREX Shaft Furnace This is accomplished as the continuously fed iron oxide which is similar in size and shape to marbles flows downward through the Shaft Furnace by gravity countercurrent to the hot

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Process Technologies

Process Technologies Midrex is a process technology company founded on innovation with the desire to improve and innovate as a constant inspiration Midrex's foundation is built on the direct reduction of iron ore and has been advancing the technology standard of the direct reduction industry since introducing the continuous discharge shaft furnace in its earliest MIDREX Plants

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Virtual Plant Tours

Experience breathtaking views from the shaft furnace tower or glimpse into the briquetting machine as you immerse yourself in voestalpine Texas and LGOK HBI-3 The voestalpine Texas facility is a 2 million metric ton per year DRI Plant uses the MIDREX Direct Reduction Process to

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MIDREX_Tech_Development__

Productivity The volumetric productivity of the shaft furnace is a convenient benchmark for relative comparison to other MIDREX Shaft Furnaces and is very important for profitable operation The shaft furnace specific production rate is expressed in tons per day per cubic meter of

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Potential for CO2 emissions reduction in MIDREX direct

Shaft Furnace Standard Process Flow of MIDREX shaft furnace ) DRI is fed to EAF to produce steel As the iron oxide descends through the furnace the iron oxide is heated and reduced Reason why MIDREX is less CO2 Emission As Fuel Table shows the CO2 emission rates for combusting methane versus two types of coal

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Modern Blast Furnace Instruments

The paper reviews recent developments of blast furnace instrumentation hot wire type gas flow meter 1975 Furnace top infrared TV Thermograph Furnace wall thickness measurement for repair Shaft sonde1976Tuyer temperature measurement 1977 Hot stove waste gas Oxygen control Furnace Lining and Bottom Monitoring been developed

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Discussion on chemical energy utilisation of reducing gas

Discussion on chemical energy utilisation of reducing gas in reduction shaft furnace B N Liu1 2 Q Li*1 2 Z S Zou1 2 and A B Yu1 3 The reduction shaft furnace is a countercurrent moving bed cylindrical reactor in which hematite

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Refractory Linings in the Iron and Steel Industry

Whether they are being used in air and process gas heaters in reformers or in the heart of the plant (the shaft furnace itself) our materials and refractory systems are precisely tailored to the requirements of our customers in the iron and steel industry STEULER-KCH supplies a complete range of refractory materials for lining blast furnaces

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Modeling and Simulation of the MIDREX Shaft Furnace

Request PDF on ResearchGate | Modeling and Simulation of the MIDREX Shaft Furnace Reduction Transition and Cooling Zones | Metallic iron used in steel industries is mostly obtained from a direct reduction process The focus of this study is to simulate the furnace of the MIDREX technology MIDREX technology which is the most important gas

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MIDREX — THE LEADING DRI PRODUCTION PROCESS

Midrex is an innovative ironmaking process developed for the production of direct-reduced iron (DRI) from iron ores and primarily natural gas Midrex is a gas-based shaft furnace process that converts iron oxides – in the form of pellets or lump ore – into direct reduced iron (DRI)

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Direct reduced iron

Hot direct reduced iron (HDRI) is DRI that is transported hot directly from the reduction furnace into an electric arc furnace thereby saving energy The direct reduction process uses pelletized iron ore or natural lump ore One exception is the fluidized bed process which requires sized iron ore particles

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JSW Projects Ltd (India) orders Corex gas

A cooperation under the leadership of Siemens VAI Metals Technologies Austria received a contract from JSW Projects Ltd a group company of JSW Steel Ltd (India's largest privately owned steel company) for the engineering and supply of a Corex gas-based Midrex direct-reduction

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Detailed Modeling of the Direct Reduction of Iron Ore in a

furnace basic oxygen route [2] Among DR processes shaft furnaces represent over 82% of the world's DR iron production with the two main processes being MIDREX (65%) as shown in Figure1 and HYL-ENERGIRON (17%) [3] In a DR shaft furnace a charge of pelletized or lump iron ore is loaded into the top of the furnace

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Midrex Process Overview

•Higher capacity shaft furnaces–up to 2 5 Mtpy of DRI •7 65 meter I D furnace larger MIDREX Reformer •MXCOL using coal gasifier •Coke oven gas injection to MIDREX Shaft Furnace •TRS™ for use of coke oven gas in MIDREX Plant •Hot transport options containers conveyor and HOTLINK

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COREX Process

It is operated with mainly indigenous iron ores comprising SISHEN lump ore (80 - ) CVRD pellets (0 - 20%) and indigenous coal from the VAN DIJKSDRIFT and GROOTELUK coal districts COREX gas from the plant is used for the production of DRI in the adjacent DR plant using a MIDREX shaft furnace

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STATE OF THE DIRECT REDUCTION AND REDUCTION SMELTING PROCESSES

State of direct reduction and reduction smelting processes J Min Met 38 (3 ‡ 4) B (2002) 127 - Providing grounds for the construction of smaller mills with lowest possible investment and production cost - Securing proper environmental protection Thus for instance the COREX process which is used for commercial purposes

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Shaft Furnace Direct Reduction Technology

Midrex and HYL Energiron are the leading technologies in shaft furnace direct reduction and they account for about 76 % of worldwide production They are the most competitive ways to obtain high quality direct reduced iron (DRI) for steelmaking

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