who make sponge iron from coal and iron ore process

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Rotary Kiln Manufacturers | Electrotherm E&T

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 ...

The Strength and Density of Green and Reduced Briquettes ...

coal and gangue components of the iron ore. This slag first coated the reducing iron oxide and sponge iron particles. Slag from different particles then combined to form a slag network between the iron oxide particles. Processing parameters, such as increasing temperature and the addition of fluxes which increased slag formation, were found to

CN1818081A - Production of sponge iron - Google Patents

The invention is about the producing method of the sponge iron. The process is: (1) make the material into the double iron oxide ball; (2) put the double iron oxide ball and the reductant into the reaction tank to get the sponge iron ball mass; (3) put the mass into the thermal insulating flume to separate the reductant, to remove the C, S,O in the protection of the N2 or the H2 to produce the ...

Why does a sponge iron catch fire? – Restaurantnorman.com

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 …

Sponge iron making full process_Coal base DRI - YouTube

Direct reduced iron (DRI), also called sponge iron,[1] is produced from the direct reductionof iron ore (in the form of lumps, pellets, or fines) to iron by ...

Convert your sponge iron plant into a cast iron plant and ...

Schematic views of the existing rotary kiln for making sponge iron & the proposed addition of MAGMA for making pig iron are given below – Advantages of converting a sponge iron plant into a pig iron plant are – Any grade of iron ore (55-63% Fe) and any size of iron ore and coal (3-20 mm) can be used in MAGMA. South African / Australian ...

SPONGE IRON – Lloyd's Metals

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 finished ...

SPONGE IRON PLANT

The major Raw Materials required for production of Sponge Iron by the rotary kiln process are: sized graded Iron Ore and Non-Coking coal. Limestone, in small quantities, is also required to scavenge the sulphur. IRON ORE The quality requirement of Sized ore …

PROCESS FOR PRODUCING SPONGE IRON - FRIED KRUPP .

We claim 1. A process for producing sponge iron, comprising the steps of preparing a sinter mix including iron ore and sponge iron, sintering the sinter mix by utilizing for at least part of the heat required for sintering the heat liberated by burning of the sponge iron in said mix, changing the product of the step of sintering into sponge iron, separating the minus 3 millimeter size fraction ...

SPONGE IRON – Properti Industri terpercaya

sponge iron, is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. The reducing gas is a mixture majority of hydrogen (H2) and carbon monoxide (CO) which acts as reducing agent. This process of directly reducing the iron ore in solid form by reducing gases is ...

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 ...

Steel industry made of sponge! | ELGi Blog

It is elementary for the generation of steel or iron-based items. Sponge iron is produced from the direct reduction of iron ore to iron by a reducing gas or elemental carbon produced from natural gas or coal. When the iron ore is reduced, oxygen content in the ore is eliminated. This leaves void spaces in the ore that give it a porous or spongy ...

HYBRIT first with hydrogen-reduced sponge iron

SSAB, LKAB and Vattenfall have produced the world's first hydrogen-reduced sponge iron at a pilot scale. The technological breakthrough in the HYBRIT initiative captures around 90% of emissions in conjunction with steelmaking and is a decisive step on the road to fossil-free steel, claims the Scandinavian steelmaker.

Energy Audit Methodology of Sponge Iron Manufacturing ...

Most of the plants in India use DRI process—a solid state direct reduction process by which iron ore is reduced to sponge without phase change (Figure 1). Raw material mix-iron ore, dolomite and coal are fed to one end of rotary Kiln and product sponge iron along with char is taken out from the other end. Apart from this, primary

Sponge Iron - What is Sponge Iron and how is it made ...

It is the result of the direct reduction of Iron Ore in solid form by using Carbon Monoxide (CO) derived from coal at 800 o-1050 o c. The direct reduction process uses palletized iron or natural lump ore. The raw materials that are required for the manufacture of DRI are mainly Iron ore and Coal.

sponge iron price per ton today - sponge iron briquette

Coal based sponge iron process; Production of sponge iron by gas is the most common way of producing sponge iron in the world. However, in India as the largest producer of sponge iron, 70% of the product is produced by Coal based sponge iron process. How a sponge iron production process is used in a region or country depends on the abundance of ...

OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION …

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

Therefore, it is essential to examine the chemical and physical characteristics of raw materials, both individually and in combination. The basic raw materials for the production of sponge iron are iron ore, non-coking coal and dolomite. Sizing of the Raw materials also play vital role in sponge iron manufacturing process. The required size of ...

Green reduction of iron ore | Höganäs

Green reduction of iron ore. Fossil process coal used in our production is a challenge where we take the lead to become more renewable. The sponge iron plant is the only operation within the Group where we use fossil coke and anthracite to reduce iron ore into metallic iron. Today, the reduction process accounts for almost 70 percent of the ...

How to Manufacture Pig Iron: How Pig Iron is made?

(3) Sponge Iron Process: As the name implies, the spongy iron is obtained by the reduction of lumpy iron ore or iron ore pellets from the oxide form into the metallic state. The iron content of the product so obtained varies from 90% to 94% and the balance represents the traces of …

What is sponge iron? What are its characteristics? - Quora

Answer (1 of 4): In general sponge iron is a pre-reduced sinter or pellets used for further processing. It is also called direct reduced iron. Generally iron ore is reduced in blast furnace and molten pig iron is then used for further processing and production of steel. In a way it is lot less e...

Energy survey of the coal based sponge iron industry ...

The actual process of the coal based sponge iron production is based on SL/RN process (jointly developed by the Steel Company of Canada, Lurgi Chemie, Republic Steel Company and National Lead Corporation in 1964), which works on direct reduction of ore.This process is adopted by worldwide conventional sponge iron industries.

Sponge Iron (DRI) | The Hira Group

With such dimension of notion WE in our Sponge Iron Manufacturing process through 4 Kilns (1 * 350T and 3 * 500T) laid up the best DRI making process in India. It is Coal Fuel based DRI. Coal based Sponge-iron is a metallic product produced through direct reduction of iron ore in the solid state .As such it is also known as Direct Reduced Iron ...

Sponge Iron – Prakash Industries Limited

Solid reduction process. Sponge iron is a highly processed form of iron ore which contains metallic iron in the range of 83-88% obtained by direct reduction without melting it. Due to high porosity, the resulting iron is called sponge iron. It is used as a raw material for manufacturing steel through electrical arc furnace and the induction ...

Sponge Iron Plant - Entrepreneur India

The sponge iron is a substitute for scrap in the electric arc furnace, which can be easily manufactured from indigenously available raw materials at very competitive price. It is the iron ore reduced in solid state by a direct reduction process using natural gas or non cooking coal as reluctant. The sponge iron is also known as Direct Reduced ...

Direct Reduced Iron and its Production Processes – IspatGuru

Direct reduced iron (DRI) is the product which is produced by the direct reduction of iron ore or other iron bearing materials in the solid state by using non-coking coal or natural gas. Processes which produce DRI by reduction of iron ore below the melting point of the iron are normally known as the direct reduction (DR) processes.

SPONGE IRON PRODUCTION FROM ORE -COAL …

Abstract: Today India stands as the largest producer of coal based sponge iron through rotary kiln process using calibrated ore and non coking coal. However, Rotary kiln process suffers from serious limitations like low productivity and pollution. In this respect fixed bed Tunnel kiln furnace are evolving as an alternative to Rotary kiln process.

The Direct Reduction of Iron Ore

sponge iron, so named because the removal of oxygen from iron ore without melting leaves a honeycomb microstructure that resembles a sponge. The sponge iron was made by putting charcoal and iron ore in a shallow hearth, in which intense heat was built up …

Coal Briquetting Process Used In Sponge Iron Plant Samac

Iron Ore Sponge Iron Anthracite Coal Briquette Making . 13 Sep 2016, The sponge iron manufacturer in Delhi India offers DRI products tunnel kiln process sponge iron in south africa. Prices / Quote Direct Reduced Iron Wikipedia

Apparatus for producing sponge iron or pig iron - Deutsche ...

The present invention relates to a process for producing sponge iron or pig iron from iron ore reduced in a reduction shaft furnace by means of a hot reduction gas to sponge iron, which is introduced into the shaft furnace level with the bustle plane at a temperture in the range between 750° and 900° C. as well as below the bustle plane, together with an apparatus for performing this process.

Sponge Iron – Properti Industri terpercaya

Spesifikasi Produk. Direct-reduced iron (DRI), also called sponge iron, is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. The reducing gas is a mixture majority of hydrogen (H2) and carbon monoxide (CO) which acts as reducing agent.

The Making of Iron & Steel

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

(PDF) Operation of Coal-Based Sponge Iron Rotary Kiln to ...

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 ...