sponge iron making process diagram

sponge iron process

2010-7-29 · The carbon content in sponge iron produced by coal based rotay kiln processes are generally low and is in the range og 0.08% to 0.20%.The carbon content in gas based processes can be controllrd to a level of 1.5% to 2.0% based on requirement for steel making. Size Distribution:

Sponge iron making process - SlideShare

2014-11-9 · Sponge iron making process 1. ALBERTUS SEPTYANTOKO 2712100014 2. IRON ORE • Iron = 65-67 % • SiO2 + Al2O3 = 2-3 % • CaO + MgO = 0,5-1 % • Sulphur = 0,02 % max • Phosphorus = 0,04 % max Chemical Composition • Size = 5-18 mm •

SPONGE IRON – Lloyd's Metals

Process. Sponge iron making is a process in which iron ore lumps (typically 5mm-18mm size) are tumbled with a ‘select’ grade of iron-coking coal little dolomite inside an inclined rotary kiln and control combusted in the presence of air for about 12 hours before the products are air cooled, magnetically separated, screened and size wise in ...

Sponge Iron - an overview | ScienceDirect Topics

The COREX process is a two-stage process, as is shown in Figure 1.1.40. In the first step, iron ore is reduced to sponge iron in a shaft furnace by means of reducing gas. In the second step, the reduced iron is melted in the melter–gasifier vessel.

Iron Sponge Process - an overview | ScienceDirect Topics

James G. Speight Ph.D., D.Sc., in Natural Gas (Second Edition), 2019 8.5.1 Iron sponge process. An example of a hydrogen sulfide scavenger process is the iron sponge process (also called the dry box process), which is the oldest and still the most widely used batch process for sweetening of natural gas and natural gas liquids (Anerousis and Whitman, 1984).

M/S. SRI SUBRAMANYA SPONGE IRON PVT. LTD.

2019-3-5 · Sponge Iron Plant, to produce the sponge iron from iron ore lumps and pellets, to cater to the growing demand for sponge iron in Bellary-Hospet region of Karnataka State. Subsequently, due to various reasons, the industry . M/S. SRI SUBRAMANYA SPONGE IRON PVT. LTD. Pre-Feasibility Report For Mini-Integrated Steel Plant of 1,32,000 Metric Tons ...

MIDREX Processes - KOBELCO

2011-1-6 · into briquette iron at a temperature of around 700℃. DRI has an apparent density of 3.4 to 3.6t/m3, while the briquette iron has an apparent density of 5.0 to 5.5t/m3. The reoxidation issue had restricted DRI manufacturing sites to the vicinity of steelmaking plants. The hot briquette technology has eliminated this site restriction, making it ...

Direct Reduced Iron and its Production Processes –

2013-3-16 · DR process, DRI, HBI, Iron making. Metallization, reformed natural gas, residual elements, Rotary kiln, Direct Reduced Iron and its Production Processes. Direct reduced iron (DRI) is the product which is produced by the direct reduction of iron ore or other iron

(PDF) i) Direct Reduced Iron: Production

2016-3-30 · decades, a new route of ironmakin g has rapidly developed for direct reduction (DR) of iron ore to. metallic iron by using noncoking coal/n atural gas. This product is known as direct reduced iron ...

SPONGE IRON – Lloyd's Metals

Process. Sponge iron making is a process in which iron ore lumps (typically 5mm-18mm size) are tumbled with a ‘select’ grade of iron-coking coal little dolomite inside an inclined rotary kiln and control combusted in the presence of air for about 12 hours before the products are air cooled, magnetically separated, screened and size wise in ...

Iron Sponge Process - an overview | ScienceDirect Topics

James G. Speight Ph.D., D.Sc., in Natural Gas (Second Edition), 2019 8.5.1 Iron sponge process. An example of a hydrogen sulfide scavenger process is the iron sponge process (also called the dry box process), which is the oldest and still the most widely used batch process for sweetening of natural gas and natural gas liquids (Anerousis and Whitman, 1984).

Process for producing sponge iron by direct reduction of ...

For adjusting a specific carbon content of the sponge iron, the H 2 S content of the reducing gas preferably may also be used. BRIEF DESCRIPTION OF THE DRAWING. In the following, the process according to the invention will be explained in more detail by way of the drawing illustrating a process diagram according to a preferred embodiment.

Energy Audit Methodology of Sponge Iron Manufacturing ...

2014-10-14 · Conducting complete energy audit (both process and utility) of a sponge iron unit is challenging as there is no laid down procedure to audit the process side. Further, the average heat to power ratio (kW th /kW e ) of sponge iron plants ranges from (25:1) to (31:1). This shows that the manufacturing process mostly uses thermal energy and application of electrical energy is insignificant.

1A Manufacturing Process for Iron and Steel

2019-6-13 · The smelting and refining process for iron and steel in the BF-BOF process involves the carbon reduction of iron ore (Fe 2 O 3) in the BF to make molten iron, and decarburization of molten iron in the BOF to make molten steel. Major reducing agent

Pig Iron Manufacturing Process - 911metallurgist

2017-3-20 · Making Pig Iron by Electric Furnace . Five groups of experiments were made on the electric-furnace production of pig steel, arranged as below: Group I. A series in which both limestone and coke were varied in the charge. Group II. A series in which

Accretion Control in Sponge Iron Production Kiln using ...

The chemical process involved in making sponge iron removes oxygen from iron ore by using a reducing agent in the form of non-coking coal [Patra et al, (2005)]. The reduction process is carried out in an inclined horizontal rotary kiln, which rotates at a programmed speed. A temperature profile ranging from

Ironmaking 101 – From Ore to Iron with Blast Furnaces ...

2017-10-10 · Iron is mainly extracted from hematite (Fe 2 O 3) and magnetite ores. Natural or direct shipping iron ores contain between 50-70% iron and can be fed directly into the blast furnace. Fe 3 O 4 decomposes when heated to ferrous oxide (FeO) and

OVERVIEW OF THE STEELMAKING PROCESS

2019-1-22 · Direct reduction Scrap Ladle (Refining) Electric arc furnace (Steelmaking) Iron Ore Pellets Electric Arc Furnace Steelmaking Continuous casting Design by Blisscommunication / Cover photo: ThyssenKrupp Steel / Tubes photo: Salzgitter The process shown above is illustrative only and is not designed to show the steelmaking process in detail.

sponge iron making process diagram - waelchli

sponge iron making process diagram. Sponge Iron Production Process Arij Trading. This process is one of the oldest direct reduction methods and the idea of its structure is based on a horizontal cement kiln. In this method, heat coal (as a reducing agent) is mixed with iron ore and sponge iron is produced in a horizontal furnace.sponge iron ...

OPERATIONAL ASPECTS OF SPONGE IRON

2012-1-10 · 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 ...

WELSPUN STEEL LIMITED

Sponge iron is a metallic product produced through direct reduction of iron ore in the solid state. It is a substitute for scrap and is mainly used in making steel through the secondary route. The process of sponge iron making aims to remove the oxygen from iron ore. The quality of sponge iron is primarily ascertained by the percentage of ...

The Making of Iron & Steel

2020-8-3 · The BOS process uses pure oxygen, injected by a lance, for refining the relatively impure hot metal (and scrap is used for temperature control). The electric arc furnace uses primarily electrical energy to supply heat to melt scrap steel, sponge iron, or mixtures of scrap and other iron units. Compared to the BOS process, the EAF requires

Biochar in the Höganäs sponge iron process – techno ...

2018-6-18 · utilization in the production of sponge iron by reduction of magnetite ore concentrate. The sponge iron process was created in 1910 by Sven Emil Sieurin, and is a solid-state reduction process with a fine iron powder as the end product (Nationalencyklopedin, 2018). Today the sponge iron process

1A Manufacturing Process for Iron and Steel

2019-6-13 · The smelting and refining process for iron and steel in the BF-BOF process involves the carbon reduction of iron ore (Fe 2 O 3) in the BF to make molten iron, and decarburization of molten iron in the BOF to make molten steel. Major reducing agent

Infographic: the Iron and Steel Manufacturing Process

2015-6-4 · An Infographic of the Iron and Steel Manufacturing Process. Steel production is a 24-hour-a-day, 365-day-a-year process, dependent on a consistent supply of raw materials and huge amounts of energy. According to the World Steel Association,

Pig Iron Manufacturing Process - 911metallurgist

2017-3-20 · Making Pig Iron by Electric Furnace . Five groups of experiments were made on the electric-furnace production of pig steel, arranged as below: Group I. A series in which both limestone and coke were varied in the charge. Group II. A series in which

OVERVIEW OF THE STEELMAKING PROCESS

2019-1-22 · Direct reduction Scrap Ladle (Refining) Electric arc furnace (Steelmaking) Iron Ore Pellets Electric Arc Furnace Steelmaking Continuous casting Design by Blisscommunication / Cover photo: ThyssenKrupp Steel / Tubes photo: Salzgitter The process shown above is illustrative only and is not designed to show the steelmaking process in detail.

The Use of Hydrogen in the Iron and Steel Industry

2018-8-28 · urnace has dominated the ironmaking process since the 1980s. • Environmental regulations are causing a significant decline of the BF method of making iron. • Although still the base source of virgin iron, new blast furnaces have not been built in the U.S. in

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