STKC

Tel: +86-21-58386189, 58386176
No.416 Jianye Road, South Jinqiao Area, Pudong New Area, Shanghai, China.

Refractory Systems | Direct Reduction Plants

Refractory Systems | Direct Reduction Plantsof a Midrex® Shaft Furnace. The refractory material in this area especially the gas inlet nozzles have to face extreme stresses. The lining has to withstand extensive mechanical abrasion, thermal shocks and of course the enormous chemical attack by the reduction gas.

دردشة مباشرةWhatsApp

Modeling and simulation of the use of direct reduced iron ...

Modeling and simulation of the use of direct reduced iron ...Oct 15, 2017· The Energiron process is the successor of the HYL processes I to IV, which are not marketed any longer. Both, the Midrex and Energiron process, are shaft furnaces operated with natural gas (NG) as well as lump ore and pellets (Chatterjee, 2014).

دردشة مباشرةWhatsApp

Shaft Furnace Direct Reduction Technology Midrex and ...

Shaft Furnace Direct Reduction Technology Midrex and ...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 cokefree, ironmaking process. Midrex and HYL Energiron are the leading technologies in shaft furnace direct reduction, and they account for .

دردشة مباشرةWhatsApp

Setting the new standard: DR technology for North America

Setting the new standard: DR technology for North AmericaMIDREX® Shaft Furnace Upper Seal Leg Reducing Gas Inlet Top Gas Outlet Iron Oxide DRI Capable of producing high quality cold DRI (CDRI), hot DRI (HDRI), and hot briquetted iron (HBI) The MIDREX® Furnace can discharge hotter with less oxide coating

دردشة مباشرةWhatsApp

Reduction Kinetics of Hongge Vanadium Titanomagnetite ...

Reduction Kinetics of Hongge Vanadium Titanomagnetite ...Oct 24, 2016· The experiments are carried out at temperatures ranging from 900 to 1050 °C, simulating the reduction zone in gas‐based shaft furnace direct reduction processes. The reduction degree is the highest when reduced with the gas composition of HYL‐III while the lowest when reduced with DPCG.

دردشة مباشرةWhatsApp

Midrex shaft process SlideShare

Midrex shaft process SlideShareDec 15, 2014· Midrex shaft process 1. MIDREX PROCESS • The "Midrex Process" using The midrex Shaft Furnace to converts iron oxide in pellet or lump form into highly metallized direct reduced iron. 2. Con't "Simple Process" Most naturally occuring iron ore exist as hematite (Fe2O3).

دردشة مباشرةWhatsApp

The World Leader in Ironmaking Solutions | Primetals ...

The World Leader in Ironmaking Solutions | Primetals ...Midrex is an innovative ironmaking process, developed for the production of directreduced iron (DRI) from iron ores and primarily natural gas. Midrex is a gasbased shaft furnace process that converts iron oxides – in the form of pellets or lump ore – into direct reduced iron (DRI).

دردشة مباشرةWhatsApp

GASIFICATION AND THE MIDREX? DIRECT REDUCTION .

GASIFICATION AND THE MIDREX? DIRECT REDUCTION .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

دردشة مباشرةWhatsApp

CFD simulation of twophase gasparticle flow in the ...

CFD simulation of twophase gasparticle flow in the ...According to the aforementioned description it is rational to assume a shaft furnace with axial symmetry. Fig. 1a shows main parts of Midrex shaft furnace including charging system, reduction and cooling zones. Fig. 1b displays computational domain representing reduction zone of shaft furnace in a twodimensional axisymmetric condition.

دردشة مباشرةWhatsApp

shaft furnace lining midrex

shaft furnace lining midrex Sponge Iron Industry Central Pollution Control, shaft furnace lining midrex,20 Mar 2007, of apparatus suitable for the purpose, including pot furnaces, shaft furnaces, reverberatory, Alexandria National Iron and Steel Co Alexandria Matrou Rd El Dikhelika, Alexandria 1 x Midrex, or for lining repairscfd study on the performance of oxygen lance of,General process flow of Midrex ...

دردشة مباشرةWhatsApp

Modeling and Simulation of the MIDREX Shaft Furnace ...

Modeling and Simulation of the MIDREX Shaft Furnace ...Modeling and Simulation of the MIDREX Shaft Furnace: Reduction, Transition and Cooling Zones Article in JOM: the journal of the Minerals, Metals Materials Society 67(11) · August 2015 with 188 ...

دردشة مباشرةWhatsApp

Shaft Furnace

Shaft Furnace The properties of boronbearing pellets after roasting for 20 min at 1200°C could meet to the requirements of gasbased shaft furnace direct reduction process, which exhibited fast reaction rate, good reduction swelling properties and high compressive strength both before and after reduction.

دردشة مباشرةWhatsApp

USA Apparatus and method for introducing gas into ...

USA Apparatus and method for introducing gas into ...In the Midrex direct reduction process, reduction of iron ore oxides to iron is accomplished by forming a bed of iron containing burden, such as iron ore pellets, in a shaft furnace then injecting a reduction gas, typically a mixture of hydrogen and carbon monoxide, into the burden at temperatures less than 1000° C.

دردشة مباشرةWhatsApp

STATE OF THE DIRECT REDUCTION AND REDUCTION .

STATE OF THE DIRECT REDUCTION AND REDUCTION .State of direct reduction and reduction smelting processes J. Min. Met. 38 (3 ‡ 4) B (2002) 129 Figure 3. Schematic Review of MIDREX PROCESS [2] ore or iron oxide pellet solids in the bed, Figure 3. The reducing gas (from 1020% CO and 8090% H2) is produced from natural gas using Midrex.

دردشة مباشرةWhatsApp

2G Direct Reduction TOP|公益財団法人 JFE21 ...

2G Direct Reduction TOP|公益財団法人 JFE21 ...The Midrex process is shown in the figure. Reforming natural gas has a H 2 /CO ratio of, the temperature is 1,173K (900), the infurnace pressure of the countercurrent shaft furnace is 100 kilopascals, and the energy necessary for reduction is gigaJoules/tonDRI. Part of the exhaust gas is mixed with natural gas and reformed, and the ...

دردشة مباشرةWhatsApp

Midrex Process for Direct Reduction of Iron Ore – IspatGuru

Midrex Process for Direct Reduction of Iron Ore – IspatGuruMidrex 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.

دردشة مباشرةWhatsApp

Midrex and Primetals in 2Mt/yr Canadian HBI plant project ...

Midrex and Primetals in 2Mt/yr Canadian HBI plant project ...Iron ores are first ground and concentrated and then processed to direct reduction (DR) grade pellets. These pellets are then fed into a MIDREX Shaft Furnace where they are reduced to metallic iron. The hot pellets are malleable and are fed into briquetting machines, producing hot briquetted iron (HBI) with a metallisation degree exceeding 93%.

دردشة مباشرةWhatsApp

Modeling and Simulation of the MIDREX Shaft Furnace ...

Modeling and Simulation of the MIDREX Shaft Furnace ...Abstract 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 gasbased direct reduced iron (DRI) process in the world, includes reduction, transition and cooling zones.

دردشة مباشرةWhatsApp

Blast furnace | metallurgy |

Blast furnace | metallurgy | Blast furnace, a vertical shaft furnace that produces liquid metals by the reaction of a flow of air introduced under pressure into the bottom of the furnace with a mixture of metallic ore, coke, and flux fed into the top. Blast furnaces are used to produce pig iron from iron ore for subsequent

دردشة مباشرةWhatsApp

Using Syngas to make DRI in the MIDREX Process

Using Syngas to make DRI in the MIDREX ProcessMIDREX ® THERMAL REACTOR SYSTEM™ (TRS ) Midrex and Praxair have partnered to develop the Thermal Reactor System™ (TRS®) technology that will reform COG for use in a MIDREX® Shaft Furnace. The TRS® reforms the cyclic and long chain hydrocarbons to make the resulting exhaust gas into a usable and efficient reducing gas.

دردشة مباشرةWhatsApp

Materials | Free FullText | Detailed Modeling of the ...

Materials | Free FullText | Detailed Modeling of the ...The geometry in the reduction and transition sections is cylindrical, while conical in the cooling section. This corresponds to the geometry of the shaft furnaces and is necessary to describe correctly the lateral gas feed and outlet cooling gas, as shown in Figure 2. The reactor modeled is a shaft furnace of the MIDREX .

دردشة مباشرةWhatsApp

Modeling and Simulation of the MIDREX Shaft Furnace ...

Modeling and Simulation of the MIDREX Shaft Furnace ...Aug 21, 2015· MIDREX technology which is the... The focus of this study is to simulate the furnace of the MIDREX technology. Modeling and Simulation of the MIDREX Shaft Furnace: Reduction, Transition and Cooling Zones | SpringerLink

دردشة مباشرةWhatsApp

تحقيق