Pyrite cinder is a solid waste generated by the sulfuric acid industry and is considered environmentally hazardous. It contains abundant iron, such as Fe 2 O 3 and Fe 3 O 4, and nonferrous metals, such as zinc, lead and copper. In order to try and recycle this material as a source of Fe units, preparation of direct reduction iron (DRI) using pyrite cinder was .
Energy Audit, DRI Process, Sponge Iron, Kiln Efficiency, Sankey Diagram of Kiln, Coal Balancing 1. Background of This Study Sponge iron industries in India have mandatory energy performance target in terms of specific energy consumption (SEC). They shall have to achieve the target SEC by 31st March, 2015. The nonperforming industries are required to pay heavy penalty for the excess amount of ...
DirectReduced Iron Process (DRI) NIPPON STEEL ENGINEERING CO., LTD. provides new iron source technology that enables the achievement of productivity improvements, operational cost reductions, CO 2 emissions reductions, and capital investment reductions through the optimal combination of Tenova HYL and Danieli's natural gasbased directreduced ...
· IS 13839: 1993 Specifiion for sponge iron/direct reduced (DRI) fines/briquettes for steel making. IS 13885: 1993 Nonmagnetic/char in sponge iron – method of determination. IS 13905: 1993 Hot briquette sponge iron(HBI) for steel making. Posted by ramu kalisetti at 2:10 AM . Email This BlogThis! Share to Twitter Share to Facebook Share to Pinterest. 53 .
· Hot Briquetted Iron (HBI): A DRI product hot discharged from the MIDREX® Shaft Furnace into a rollertype press that molds the reduced material into dense pillowshaped briquettes. This product is used in EAFs, blast furnaces and BOFs. Hot DRI (HDRI): This product is like CDRI physically yet contains heat from the reduction process to help make EAF .
In Spain some 44,000 tons of mill scale are generated each year1,2. In view of its high metallic iron content and low nonferrous metal and alkaline compound content, mill scale is suitable for direct recycling to the blast furnace via the sintering plant1,3. Approximately 90 % of mill scale is directly recycled within the steelmaking industry and small amounts are used for ferroalloys, in ...
· Iron ore is reduced with hydrogen while in a solid state, hence the name direct reduction, to produce direct reduced iron (DRI) called sponge iron. Sponge iron is then fed into an EAF, where electrodes generate a current to melt the sponge iron to produce steel. Some carbon is needed so that steel can be produced. This carbon can come from pulverized coal, .
(DRI). Sponge iron is produced primarily both by using noncoking coal and natural gas as reductant and therefore classified as coal based and gas based process respectively. Due to a promising availability of coal, the coal based sponge iron plants share the major amount of its production. At present, there are 118 large and small sponge iron plants operating in India, .
Main Product of MJIS is Sponge Iron, named as Iron Rotary Kiln (IRK). This IRK have 2 specifiion, IRK 1 with product size 3~25 mm, and IRK 2 with product size < 3 mm. Others product are Return Char and Fly Ash. Markets. MJIS IRK product is intended to meet the raw material needs of PT Krakatau Steel, Domestic International market.
sponge iron in steel making has become a regular practice mainly by induction furnace steel plants. Majority of the sponge iron units did not have final gas cleaning system to remove fine dust in the gas before letting out to the atmosphere, which are of course installed later/being installed. With the boom in export price of iron ore during last 23 years, iron ore suppliers have put up the ...
reduction Iron Technology (DRI). The process of sponge iron involves the removal of oxygen from iron ore. During this process, the departing oxygen causes micro pores in the ore body making it porous. The final product, when observed under a microscope, resembles a honeycomb structure looking spongy in texture, hence the name sponge iron. Iron ore (haematite) and .
· What is degree of metallisation? A sponge iron unit produces DRI of following %C, %Si, 1%Mn, .5%S, %P, rest is Fe. Calculate degree of metallisation? Poll Results. 40% Fe total is different from that of Feactual ( 2 voters ) 60% Fe is consumed by impurities as Fe3C, FeMn, Fe3P, FeS etc ( 3 voters ) Based On 5 Votes. Participate in Poll, Choose Your Answer. .
India: Sponge PDRI manufacturers preferred iron ore over pellets for better margins. 25 Mar 2021, 13:11 IST. Show more like this Show less like this. Sponge Iron. Central India: Production cut by hotrolling mills adversely impact sponge iron trades. 26 Nov 2020, 16:59 IST. Show more like this Show less like this. Sponge Iron. Chhattisgarh offers 'special' sops to sponge iron, .
DRI can be either hot or cold charged to the EAF. Some steel companies ship DRI from their captive direct reduction plants to their remote steel mills and a small volume of DRI is sold to third parties. In India there are many small rotary kiln furnaces producing DRI, known locally as sponge iron, using coal as energy and reductant source. Some ...
Reduced Iron (DRI) or Hot Briquetted Iron (HBI) in its compacted form, sponge iron is not a new route to steel production. For the production of primary iron, this route is recognized as an alternate route to blast furnace. Sponge iron is fed into the electric furnace for steel production or into foundries for the manufacture of wrought iron. Commercial production of sponge iron in .
IMO distinguishes between DRI and "sponge iron which has been briquetted at temperatures of 650 C and has reached an apparent density of 5 g/cm³ (HBI). For the latter, in addition to considerably simplified shipping requirements, "open storage prior to loading" is acceptable. As compared with DRI, the following punch list provides a summary of the most important specific characteristics of ...
(DRI). Sponge iron is produced primarily both by using noncoking coal and natural gas as reductant and therefore classified as coal based and gas based process respectively. Due to a promising availability of coal, the coal based sponge iron plants share the major amount of its production. At present, there are 118 large and small sponge iron plants operating in India, amongst them only 3 are ...
Sponge Iron (DRI):We possess considerable expertise in sourcing of Sponge Iron. Our Sponge Iron exhibits superior quality characteristics with excellent metallic content and an impeccable consistency in chemical and physical properties and low sulphur and phosphorus content. We aim to provide our customers Sponge Iron at most competitive prices.
· It is also known as sponge iron since its structure is just like sponge with a network of connecting pores. These pores results in a large internal surface area which is around 10,000 times greater than the internal surface area of solid iron. DRI is produced in many forms. These are lump, pellets, hot briquetted iron (HBI), fines, and cold briquetted iron (CBI). HBI and CBI .
Reduced Iron (DRI) or Hot Briquetted Iron (HBI) in its compacted form, sponge iron is not a new route to steel production. For the production of primary iron, this route is recognized as an alternate route to blast furnace. Sponge iron is fed into the electric furnace for steel production or into foundries for the manufacture of wrought iron. Commercial production of sponge iron in India ...
Coal Gas based DRI Plant Billet Grinding Machine Manufacturer of Coal Gas based DRI Plant Billet Grinding Machine Sponge Iron Plant Gas Based HYL DRI Plant and Rotary Kiln for Making Sponge Iron offered by Remso Control Technologies Private Limited Greater Noida Uttar Pradesh. Coal Gasifiion based Production of Direct Reduced Iron . Coal Gasifiion based Production of Direct Reduced Iron ...