A tunnel kiln is a long stationary insulated furnace made of refractory bricks or pressed ceramic wool blankets. It has a rail track provision inside the kiln for the travel of trolleys.
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 thermal stability of the raw material. ... Material Science and Technology: ID Code: 7035: Deposited By: Sahu A K: Deposited …
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 …
Isfahan University of Technology. ... i need some resources about the production process and raw material of Silicon carbide saggers in sponge iron reduction via the tunnel kiln method.
SIPL is operating 4 x 100 TPD Direct Reduced Iron Rotary Kilns for production of 2000 TPA Sponge Iron at Purulia, using the proven German SL/RN technology. Sponge Iron, also known as Direct Reduced Iron is produced from Hematite Iron ore (5 to 18 mm size) by removing the oxygen by direct reduction process using non coking coal as the fuel …
A tunnel kiln is a long stationary insulated furnace made of refractory bricks or pressed ceramic wool blankets. It has a rail track provision at its floor for trolley movement.
He has been awarded for innovative technology in tunnel kiln for Sponge Iron (DRI) manufacturing. It is a green technology and the first of this kind of project in India. As CEO of Metcon Power Consultants & Engineers, his emphasis is on marketing, strategic planning, project management and innovation of new technology to derive usable …
The company offers integrated design and engineering technology services from concept to commissioning for a wide range of projects like Sponge Iron plant, Steel Melting Shop, Power Plant, Blast Furnace, Rolling Mill, Ferro alloys and new technologies like Beneficiation, Pelletization, Sintering and Tunnel Kiln.
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.
The product is direct reduction iron which is an ideal raw material for producing high-quality steel and clean steel. Direct reduction iron contains large number of fine pores and it looks like sponge when observed in a microscope, so it is also called sponge iron. The sponge iron made of pellet is called metallized pellet.
Keywords Tunnel kiln Iron ore–coal composite pellets Sponge iron Energy efficiency Carbon utilization efficiency 1 Introduction The tunnel kilns are mostly used by the industries for heating refractory and ceramic products [1, 2]. In the year 1908 use of tunnel kiln started for iron oxide reduction.
1930-1950s Saggers in Tunnel Kilns- Small Shaft Furnace- Rotary Kilns- Hogganas- Wiberg- Krupp & Lurgi- Coal Based Coal Based Coal Based 1950-1960s Static Reactors- ... degree of metallization in sponge iron technology. Sponge Iron Making Process(Coal Based) Krupp-Renn Process : The Krupp-Renn process was developed in 1930. In this …
This patented technology made an innovative reform of the traditional iron reduction technique. The tunnel kiln features all-cotton insulation, a flat ceiling and uses silicon carbide cylinders to feed materials. Great heat preservation, low energy consumption and high-level automation was achieved in the tunnel kiln.
Fig 2 Principle of direct reduction process. Gas based process. In the gas based reduction processes, a vertical shaft kiln is used in which iron ore is fed into the top of the kiln and finished sponge iron is drawn off from the bottom after cooling it so as to prevent its re-oxidation.
With the Tunnel Kiln technology, it is possible to build small plants with low investment costs. The main machineries in sponge iron production through tunnel kiln technology …
FOR FERRUGINOUS SAND TO BE SPONGE IRON PROCESS BY USING TUNNEL KILN TECHNOLOGY ... Tunnel Kiln, Sponge Iron Ferruginous sand is one of the natural resources that are scattered across Indonesia ...
Tunnel kiln technology, among other gas-and coal-based DRI production technologies, combines cheap material costs and minimal capital investment with …
In order to explore the efficacy of iron ore-coal composite pellets over indurated iron ore pellets, standard charging of concentric layers of separate iron ore, coal fines, or their mixture, these pellets were tested at 1200 C in the tunnel kiln. It was observed that metallization for indurated iron ore pellets, and concentric charging were ...
FINES TO SPONGE DRI (Direct Reduced 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 proportions to ...
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Sponge iron means porous iron produced by direct reduction process.Direct reduction (DR) process is a solid-state reaction process (i.e. solid–solid or solid–gas reaction) by which removable oxygen is removed from the iron ore, using coal or reformed natural gas as reductants, below the melting and fusion point of the lump ore or …
We are a consultant agency dealing in industrial and green field projects in the field of DRI from Mill Scale through Tunnel Kiln technology, Iron & Steel making Industry, in various fields and application of extractive metallurgy, Waste Plastic Recycling Plant, Recovery of Zinc from SMS Flue Dust, automation of plant, non conventional Power.
CASE Group is industry leader in DRI Tunnel Kiln Technology for sponge iron plant in India and other countries. Check major advantages of using the CASE DRI process over other reduction methods.
In production of sponge iron through the tunnel kiln technology, it is possible to use both magnetite and hematite ores, using various grades of coal and natural gas as the main part of the process. ... Used directly for …
This process is the main part of this technology to get (pellets & sponge iron of 2 to 8 mm size) reduced to DRI. Tunnel kiln is divided into three zones to complete reduction
Desain dan Simulasi Tungku Bakar untuk Pengolahan Pasir Besi Menjadi Sponge Iron dengan Teknologi Tunnel Kiln (Barman Tambunan, Cuk Supriyadi, Juliasyah) _____ DESAIN DAN SIMULASI TUNGKU BAKAR UNTUK PENGOLAHAN PASIR BESI MENJADI SPONGE IRON DENGAN TEKNOLOGI TUNNEL KILN DESIGN AND SIMULATION OF …
We are a consultant agency dealing in industrial and green field projects in the field of DRI from Mill Scale through Tunnel Kiln technology, Iron & Steel making Industry, in various fields and application of extractive metallurgy, Waste Plastic Recycling Plant, Recovery of Zinc from SMS Flue Dust, automation of plant, non conventional Power.
7 TUNNEL KILN TECHNOLOGY CONCLUSION Performance of tunnel kiln is compared with the most commonly used continuous kiln technology in the region which is FCBTK. ACKNOWLEDGEMENTS The project team would like to acknowledge the financial support received from the Swiss Agency for Development and Cooperation for preparation of the …
Request PDF | Reduction Efficiency of Iron Ore–Coal Composite Pellets in Tunnel Kiln For Sponge Iron Production | In order to explore the efficacy of iron ore-coal composite pellets over ...
Tunnel Kiln Technology . Rotary Kiln Technology . Paired Pushing Kiln Technology . Chain Grate+Rotary Kiln Machine Tech. High Density Metallized Pellet ( HDDRI ) ... Sponge Iron . Granular Iron . Oxidized Pellet . CONTACT US: Contact Person : Mr. Zhibin Jiang. Contact Phone : 0086 510 87820959.