dri plant process ppt – beltconveyers.net. Sponge Iron Plants,Sponge Iron Kiln Plant,VSK Cement …plant 1170 28.833 EAF/ EOF based mini steel plant 37+2 9.500 Gas … Posts Related to dri plant process ppt. »More detailed
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
Sponge iron kiln design. Production of sponge iron. Rotary kiln design and project case duration. Surrounding the iron ore particle is swept away faster. Primary and secondary airs are supplied to the kiln to initiate combustion and reaction processes choudhury 2014. Large number of viable design and operating candidates.
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.
In order to explore the efficacy of iron ore–coal composite pellets over ordinary green pellets, indurated pellets, briquettes as well as standard charging of material in the form of concentric layers of iron ore and coal fines, or their mixture, these pellets were tested at 1,150 °C in a 7 tons per day (7 tpd) pilot tunnel kiln. Reduction of iron ore coal composite pellets in tunnel kiln ...
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 ...
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 strength and . More Detail
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 Technology. The unique SKBIT technology is gaining popularity in coal-based
ADRIAN Co. | 17 followers on LinkedIn. A knowledge-based company on the basis of R&D in metallurgical engineering. Member of Sharif Science & Technology Park | ADRIAN Metals Sharif Company (Adrian ...
Keywords: Tunnel Kiln, Iron ore-coal composite pellets, Sponge iron, Thermal efficiency, Carbon utilization efficiency, Percentage metallic iron . 1. INTRODUCTION The tunnel kilns are mostly used by the ceramic industries for heating refractory and ceramic products [1-2]. In the year 1908 use of tunnel kiln started for iron oxide reduction. This
iron ore sintering in tunnel kiln - avsepublic.com. tunnel kiln to make sponge iron in india using iron ore … tunnel kiln process of iron ore reduction - globalpinddorg. jun iron ore fines and slimno le, tunnel kiln sponge iron, direct reduction kilns iron ore and coal …
Tunnel Kiln Process . Hoganas has developed a process in 1908, which uses coal as a reductant. technical essence of Hoganas tunnel kiln process. Since 1990 the senior managers of OTSK began to develop the tunnel kiln for sponge iron cooperated.
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 ...
natural gas as reductant and therefore classified as coal based and gas based process respectively. Due to promising availability of coal of 264,535million tonnes the coal based sponge iron plants share the major amount of its production [2]. At present, there are 118 large and small sponge iron plants operating in India, among
Sponge iron is a type of iron produced by coal based or gas-based reduction of iron ore. It is difficult to measure and control the degree of reduction or quality of the iron ore at intermediate ...
tunnel technology of iron sponge making - psycholegal.co.za. tunnel technology of iron sponge making. tunnel technology of iron sponge making. Powder made by sponge iron reduction process takes place in a gas fired tunnel kiln at around 1200& 176;C for For merchant pig iron production the iron is cast.pdf tunnel kiln sponge iron new technology.
SPONGE IRON INDUSTRY - Centre for Science and Environment. Commercial production of sponge iron in India commenced in 19801. ... The mixture then moves to a tunnel-kiln where it is ... Karnataka Benaka Sponge Iron Ltd. 657 …
south africa coal based sponge iron ofspescaracolli tunnel kiln process sponge iron in south africa tonnage of DRI is made via the Midrex route relying on natural gas In South Africa with little natural gas processes used in South Africa offer partial pre Sponge Iron manufacturing in Tunnel Kiln Tunnel Kiln Iron ore fines 1 50 000 OMC / Nearby ...
In conventional coal based sponge iron plant, Fig. 1, kiln feed (Stream no. 1), which consists of iron ore, feed coal and dolomite, is fed to the rotary kiln (RK).A separate conveyor collects different size fractions of coal (Stream no. 5) for injection into the kiln with the help of pressurized air (Stream no. 4) from discharge end side.
PDF | Sponge Iron Industry in recent years has witnessed growth in India as well as globally. ... tunnel process. There are various coal based processes us-ing rotary kilns but only few have got ...
6.1 Schematic Drawing of discharge end of Kiln 38 6.2 2D & 3D model of Sponge iron Rotary Kiln 39 6.3 Faces of lobe blower. 39 6.4 Coal throw and solid out face at discharge end of kiln. 40 6.5 Cuts made to represent air pipes. 40 6.6 Wall of air pipe. 41 6.7 Face of air pipe. 41 6.8 Overall view and internal view of generated Mesh. 42
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 ...
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 ...
Tunnel Kiln Process For Sponge Iron Making in Nigeria - XSM in .. Huanggang Z Kiln&FURNACE Co.,Ltd. Our company has made the sponge iron tunnel kiln and matching refueling system equipment intechnical essence of Hoganas tunnel kiln process. Since 1990 the senior managers of OTSK began to develop the tunnel kiln for sponge iron cooperated. Read more
PDF | Sponge Iron Industry in recent years has witnessed growth in India as well as globally. ... tunnel process. There are various coal based processes us-ing rotary kilns but only few have got ...
Sep 23, 2011· Production of Direct Reduced Iron in Rotary Hearth Furnace 1. Production of Direct Reduced Iron in Rotary Hearth Furnace 2. Direct Reduced Iron(DRI) DRI: Iron produced by reducing an iron ore (65-70% iron) by reducing gas (H2+CO) at a temperature (approx. 800-1050 °C) high enough to burn off its carbon and oxygen content.
Then in 1983, Odisha Sponge Iron Limited set up India's second coal based DRI plant. The third coal based DRI plant was set up by Tatas in 1985based on their own technology. To push up further growth, DRI industry was de-licensed in 1985 baring certain location restrictions much before the de-licensing and deregulation of Indian economy in 1991.
Rotary Kiln · Tunnel Kiln ... Coal Based Rotary Kiln for Direct Reduced Iron / Sponge Iron (100 TPD, 350 TPD, 500 TPD) ... Since DRI is produced by removing oxygen from iron ore, its structure is just like sponge with a ... The quantity of coal feed is adjusted to get the required degree of production and to sustain the process.
Sponge iron industry938 Кб. 1.6.1 Types of technology Technology options for coal based kiln plants are: Krupp Renn: A carboneous reducing agent is used for this process.Border areas of Odisha and Jharkhand are also a hub for illegal supply of iron ore to several sponge iron plants.
solid-state reduction of iron ore concentrate with a mixture of coke, anthracite, and limestone is used to produce sponge iron units that are processed further to saleable iron powder products. The reduction takes place in tunnel kilns at temperatures of up to 1200°C. Heat for this process is
