Home >Products >

Products

Case

tunnel kiln technology for making dri from iron ore fines

2020-12-07T08:12:59+00:00

CASE GROUP

CASE Group success story includes commissioning DRI Tunnel Kiln, first of its kind in India for use of all kind of iron ore fines. The cost-effective tunnel kiln technology brings final product which has density of 4 GMS/CC thus making it usable directly for melting in induction furnace, arc furnaces.

CASE GROUP

The process of Tunnel Kiln uses fines of Iron ore and Coal which are mixed together in specified propotions to eventually make DRI having quality grades of 90% plus metallization. The Technology . Iron Ore Fines and Coal Fines mixed together are loaded into SiC (Silicon Carbide) beakers which are then loaded onto the cars.

Reduction of iron ore briquettes into DRI in the tunnel ...

We offer third generation tunnel kiln process from China, to convert soft iron ore lumps or briquetted iron ore fines into Direct Reduced Iron (DRI). DRI or sponge iron is a high-quality metallic product and used as a feed-stock in the induction furnace / electric arc furnace.

Reduction of iron ore briquettes into DRI in the tunnel ...

In the third generation tunnel kilns, soft lumpy ores of 10-30 mm size or briquetted iron ores of 32 mm X 25 mm size can be used. In the first and second generation tunnel kilns, iron ore coal layers were separate. In the new design, iron ore lumps / briquettes and coal fines are mixed together and hence the reduction is faster.

SPONGE IRON PRODUCTION FROM ORE -COAL

Tunnel kiln furnace are evolving as an alternative to Rotary kiln process. Iron ore fines and the low grade beneficiated iron ore cake are directly used for manufacturing of sponge iron in tunnel kilns. The material bed in Tunnel kiln being stationary, it does not require high

Direct-Reduced Iron - an overview ScienceDirect Topics

Direct reduced iron is iron ore in the form of lumps, fines or pellets that have had the oxygen removed by using hydrogen and carbon monoxide. Typical sources of carbon monoxide are natural gas, coal gas, and coal. Other energy inputs into the production process often include oil and electricity. Since much of the energy used is in the form of ...

METCON POWER CONSULTANT ENGINEERS Direct Reduced

Preparation of Material Loading in T unnel Kiln. This is a first step of Tunnel kiln technology. In this step, the material is prepared and. mixed. There are 4 Storage bin s, 2 for iron ore and ...

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, i.e. 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.

Prospects for Coal-based Direct Reduction Process

DRI, making DRI from iron-ore and coal. The process, however, has a drawback: the DRI produced may have a decreased iron content and/or increased sulfur content, depending on the quality of the coal used. This impedes the commercial use of the process for producing DRI from iron ore. On the other hand, with an eye to resource

New Technology (Tunnel Kiln) to make Sponge Iron / DRI in ...

Nov 23, 2011  CASE Group has set up India's first DRI / Sponge Iron unit using Tunnel Kiln. The Kiln which is 194m in length, is the longest in India was successfully fir...

Tunnel Kiln - Paras Project Ventures

TUNNEL KILN (Coal-based DRI Plant) Production of sponge iron by Tunnel Kiln technology was developed in 1911 as Höganäs method. Now very popular, the technology has become an effective method for sponge iron production. With the Tunnel Kiln technology, it is possible to build small plants with low investment costs.

tunnel process for sponge iron

DRI Tunnel Kiln. DRI (Direct Reducted Iron) Tunnel Kiln was commissioned on 24 November 2011. CASE gave this technology to India and this was also first of its kind in India. The process has been established now after earlier hiccups. The process of Tunnel Kiln uses fines of Iron ore and Coal which are mixed together in specified propotions to ...

Tunnel Kiln Coal Based DRI Plant, टनल किलन in Village ...

Iron ore fines are usually subject to beneficiation and/or pelletisation thereby converting them back into hard rock-like shapes (pellets) with a proper tumbler index; These pellets are then used for making sponge iron. Rotary kilns have a drawback upon the size and quality of iron ore that can be used.

use of magnetite ore in dri making

Use Of Magnetite Ore In Dri Making. Magnetite Iron Ore Iron Ore. Magnetite otherwise known as Ferrous-Ferric Oxide or Magnetic iron ore is on of the main ores of iron and has a chemical formula of Fe3O4. can we use magnetite ore for dri tunnel kiln process. can we use magnetite ore for dri tunnel kiln

(PDF) Production of Sponge Iron through Tunnel Kiln Process

Production of Sponge Iron through Tunnel Kiln Process. ... the quality of which is directly related to quality of iron ore. Ladle metallurgy is very important technology when it comes to refining ...

corbothermic reduction of iron in tunnel kiln - Mining

Feb 28, 2013  Articles – Production of Sponge Iron through Tunnel Kiln Process . The carbothermic reduction of iron ore takes place in horizontal tunnel kiln. In place of sized graded iron ore, tunnel kiln process uses iron ore fines, and ; »More detailed

4.8/5(1.1K)

DRI Tunnel Kiln and Gasifiers Manufacturer Case Group ...

Sponge Iron, also known as Direct Reduced Iron is the product produced out of using iron ore. The iron ore is processed through reduction process by the use of gas that emits from natural coal gas resource. CASE Group of Industries manufactures sponge iron by using tunnel kiln, following reduction of iron ore through Static Kiln Briquetted Iron ...

Product Services – Tata Steel Long Products Limited

The pellet plant (using the grate kiln technology) is used to agglomerate and indurate iron ore fines into pellets, while the sinter making enables us to agglomerate iron ore fines into a coarse product, i.e. the sinter. Hard and semi-hard coking coal is heated in the coke oven facility which consists of two batteries containing 48 ovens each.

Direct reduced iron - Wikipedia

Direct reduced iron (DRI), also called sponge iron, is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) into iron by a reducing gas or elemental carbon produced from natural gas or coal.Many ores are suitable for direct reduction. Direct reduction refers to solid-state processes which reduce iron oxides to metallic iron at temperatures below the melting ...

Raj Kumar Choubey - CEO - Metcon Power Consultant ...

On Reduction of Iron Ore thru Tunnel Kiln Technology AIIFA, Delhi September 21, 2015 It is a Pollution free and economical proces of manufacturing of DRI /Sponge Iron out of Iron Ore fines

Title: Industrial consultant and expertise

Ironmaking in Rotary Hearth Furnace – IspatGuru

May 17, 2017  Ironmaking in the rotary hearth furnace (RHF) is a direct reduction process which utilizes non-coking coal for the reduction of iron ore. The RHF is the process reactor which consists of a flat, refractory hearth rotating inside a stationary, circular tunnel kiln. Inside the RHF, direct reduction of iron ore or iron-bearing waste materials ...

Rotary Kiln Manufacturers Electrotherm ET

Rotary Kiln with SL/RN Process. Coal Based Rotary Kiln for Direct Reduced Iron / Sponge Iron (100 TPD, 350 TPD, and 500 TPD) Solid-state reduction of Iron Ore using either coal/gas as a medium of reduction to produce a substitute raw material for steel making is termed as Direct Reduced Iron (DRI). Since DRI is produced by removing oxygen from ...

process of iron reduction in tunel kin and rotary kiln

Tunnel kiln furnace are evolving as an alternative to Rotary kiln process Iron ore fines and the low grade beneficiated iron ore cake are directly used for manufacturing of sponge iron in tunnel kilns The material bed in Tunnel kiln being stationary it does not require high strength and . More Detail; Direct Reduced Iron Kiln Direct Reduced ...

tunnel kiln process sponge iron in india

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.

tunnel process for sponge iron

DRI Tunnel Kiln. DRI (Direct Reducted Iron) Tunnel Kiln was commissioned on 24 November 2011. CASE gave this technology to India and this was also first of its kind in India. The process has been established now after earlier hiccups. The process of Tunnel Kiln uses fines of Iron ore and Coal which are mixed together in specified propotions to ...

Tunnel Kiln - Paras Project Ventures

TUNNEL KILN (Coal-based DRI Plant) Production of sponge iron by Tunnel Kiln technology was developed in 1911 as Höganäs method. Now very popular, the technology has become an effective method for sponge iron production. With the Tunnel Kiln technology, it is possible to build small plants with low investment costs.

reduced iron tunnel kiln - Hitlers Hollywood

reduced iron tunnel kiln. By using tunnel kiln to produce DRI is that mix the iron ore concentrate pulverized coal and limestone powder with certain proportion and feed into material drum for being reduction and then put these drums on the kiln car and pushed it into the tunnel kiln when the material drum is heated to 1150℃ for reduction and cooling iron ore concentrate will be reduction and ...

Projects- Ferrous Group (MER Division) CSIR-NML

Lab scale investigation has been established for production of DRI from mill scale, waste iron ore fines and non-coking coal without induration of pellets. Pilot plant trials were carried out in a commercial tunnel kiln of 30TPD at M/s. Shree Mahavir Refractory Works, Ranchi and more than 30 tons of DRI has been produced successfully.

tunnel kiln technology for sponge iron

The process of Tunnel Kiln uses fines of Iron ore and Coal which are mixed together in specified propotions to eventually make DRI having quality grades of 90% plus metallization. The Technology . Iron Ore Fines and Coal Fines mixed together are loaded into SiC (Silicon Carbide) beakers which are then loaded onto the cars.get price

CN1804049A - Tunnel kiln without exterior combustion ...

The relates coal-base direct reduction process for sponge iron with different shape by tunnel kiln without outer combustion chamber and the combination comprises as shown in abstract figure: to iron concentrate, firing pellet, cooling or compacting; preparing the reducer; blending, loading into retort; entering the kiln; out the kiln; and sorting.

Beijing DSCD Technology Co. Ltd.

DSCD can supply DRI directly from Iron ore fines and coal fines. This is a new technology. 1. Tunnel Kiln 2. Crucible Free Kiln 3. Grate-Rotary Kiln

tunnel kiln process sponge iron

tunnel kiln process of iron ore reduction. tunnel kiln process of iron ore reduction For each project scheme design, we will use professional knowledge to help you, carefully listen to your demands, respect your opinions, and use our professional teams and exert our greatest efforts to create a more suitable project scheme for you and realize the project investment value and profit more quickly.

Highly metallised low Sulphur Directly Reduced Iron from ...

This invention is useful for converting steel plant wastes fines / mining waste fines such as iron ore slime/fines, middling and rejected coal containing more than 25 % ash into a highly metallised (Metallisation > 96%) low Sulphur (0.006%S) DRI suitable for induction furnace, electric arc furnace and blast furnace for iron and steel making. 5.

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, i.e. 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.

DRI Tunnel Kiln and Gasifiers Manufacturer Case Group ...

Sponge Iron, also known as Direct Reduced Iron is the product produced out of using iron ore. The iron ore is processed through reduction process by the use of gas that emits from natural coal gas resource. CASE Group of Industries manufactures sponge iron by using tunnel kiln, following reduction of iron ore through Static Kiln Briquetted Iron ...

energy use in dri tunnel kiln

Tunnel Kiln at Best Price in India. DRI(Direct Reducted Iron) Tunnel Kiln was commissioned on 24 November 2011. CASE gave this technology to India and this was also first of its kind in India. The process has been established now after earlier hiccups. The process of Tunnel Kiln uses fines of Iron ...

Tunnel Kiln at Best Price in India

CASE gave this technology to India and this was also first of its kind in India. The process has been established now after earlier hiccups. The process of Tunnel Kiln uses fines of Iron ore and Coal which are mixed together in specified propotions to eventually make DRI

DRI Tunnel Kiln, टनल किलन in Faridabad , CASE Group ID ...

Sponge Iron, also known as Direct Reduced Iron is the product produced out of using iron ore. The iron ore is processed through reduction process by the use of gas that emits from natural coal gas resource. CASE Group of Industries manufactures sponge iron by using tunnel kiln, following reduction of iron ore through Static Kiln Briquetted Iron ...