sponge iron process

Jul 29, 2010· Lump iron ore in the size range of 520mm can be used in all coal based rotary kiln processes. In gas based processes 70% iron ore pellets and 30% lump iron ore of 1030mm are being used. In general high grade iron ore of 65% minimum Fe (total) with less decrepitating characteristics is preferred for use in rotary kiln. Reductant: Non coking ...

Accretion Control in Sponge Iron Production Kiln using ...

This study focuses on sponge iron kiln based process. The chemical process involved in making sponge iron removes oxygen from iron ore by using a reducing agent in the form of noncoking 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 ...

process of sponge iron by rotary kiln

rotary kiln for sponge iron / dry process rotary kiln / rotary kiln for cement plant Rotary kiln Our company has manufactured a new rotary kiln production line with low pressure and energy consumption, which adopts advanced the rotary kiln also has functions of environmental protection and energy conservation.

Brief Process Of Coal Based Sponge Iron Rotary Kiln

Brief Process Of Coal Based Sponge Iron Rotary Kiln. 2 D Model of Sponge Iron Rotary Kiln Developed . variation in mass fraction of Fe content in kiln outlet stream is observed based on . kiln which consists of iron ore, coal . rotary kiln of sponge iron process. Get Price And Support Online; A Thesis Submitted for Partial Fulfillment of the .

rotary kiln design calculations in sponge iron plant

brief process of coal based sponge iron rotary kiln manufacturer in Shanghai China brief process of coal based sponge iron rotary kiln is manufactured from Shanghai XuanshiIt is the main mineral processing solutions XSM stone crushing machine projectbrief process of coal based sponge iron rotary kiln.

Process Description and flow diagram of Coal Based DRI Plant

Coal plays a dual role in the Kiln. Part of coal is used as fuel to supply the desired heat so as to take the raw materials to the desired temp. But main role of coal is to supply carbon in the reduction process. Dolomite is used as sulphur scavenger which finally comes out with the char. Char contains ash of coal and other impurities of iron ore.

Coal Based Sponge Iron Process In South Africa

Coal Based Rotary Kiln Reduction Process Slrn India. Coal based tunnel kiln technology for making , Jan 17, 2013 coal based tunnel kiln technology , in India operate through coal based rotary , The coal based rotary kiln process of making sponge iron is the . More Details

Direct Reduction Process an overview | ScienceDirect Topics

However in the coal/oilbased DR process, the reducing gas is generated from hydrocarbons (primarily coal, but sometimes oil and natural gas) in the reduction zone of the furnace, which is typically a rotary kiln. Typical examples of the coalbased process include the SL/RN and ACCAR processes.

Rotary Kiln Process Of Making Sponge Iron Chapter Kenya ...

2 kiln based sponge iron production process rotary kilns are found in many processes that involve processing of solids this study focuses on sponge iron kiln based process the chemical process involved in making sponge iron removes oxygen from iron ore by using a reducing agent in the form of noncoking coal patra et al 2005 the.

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

Sep 01, 2015· 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.

OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION IN …

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 desulphurizing agents (limestone or raw dolomite) into an inclined rotary kiln, heated counter current to the flow of hot gas and reduced to form sponge ...

Super Refractories Sponge Iron Production

For Sponge Iron production by Direct Reduction Process CUMI offers the following solutions. COAL BASED SPONGE IRON ROTARY KILN. svenska casino spel. Application: Recommended Products: AFTER BURNING CHAMBER (ABC) CUMICRETE CK 14 SI: ABC BACK UP : CUMICRETE CII 104SI:

Sponge iron making process SlideShare

Nov 09, 2014· INJECTION COAL Coal Crushing Combustion Injection to kiln Coal Injection over a large range of size 020 mm Temperature combustion below 950 C Coal injection system makes use of voal volatiles for reduction, thereby reducing the coal requirement to a minimum Coal Injection can decrease energy consumption 8. ROTARY KILN 9.

use of fines for sponge iron production in coal based ...

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.

calculation on reduction for direct reduced iron in tunnel ...

sponge iron production from ore coal composite pellets in tunnel kiln. Keywords: Tunnel Kiln, Iron orecoal composite pellets, Sponge iron, Thermal efficiency, ... products [12]. In the year 1908 use of tunnel kiln started for iron oxide reduction. This .... For composite pellets amount of external coal is …

Sponge Iron Rotary Kiln

Boudouard reaction, dolomite, DRI, Iron ore, metallization, non coking coal, pellets, reduction, Rotary kiln, Sponge iron, Sulphur, Coal based Direct Reduction Rotary Kiln Process . The coal based direct reduction rotary kiln process was developed for converting iron ore directly into metallic iron without the melting of the materials.

tunnel kiln industrial equipment for direct reduced iron ...

direct reduced iron by tunnel kiln coal crushing plant. Coal Based Sponge Iron Plant Silicon Carbide Tunnel Kiln. Coal Based Tunnel Kiln Technology For Making Iron on direct reduced iron technology, we mainly popularize rotary kiln kiln technology is fit for various of high grade or low grade iron ore and contact us sponge iron production from orecoal composite pellets in tunnel kiln. get p ...

Coal based Direct Reduction Rotary Kiln Process – IspatGuru

Boudouard reaction, dolomite, DRI, Iron ore, metallization, non coking coal, pellets, reduction, Rotary kiln, Sponge iron, Sulphur, Coal based Direct Reduction Rotary Kiln Process . The coal based direct reduction rotary kiln process was developed for converting iron ore directly into metallic iron without the melting of the materials.

Rotary Kiln Process of Making Sponge Iron C

treatment with coal in a rotary kiln. IMPORTANT FEATURES The coal based rotary kiln process of making sponge iron is the focus of the present write up. Although many different processes and CHAPTER 2 process concepts have been emerging in this area, there were rapid births and deaths of these processes and process concepts in the

Sponge iron rotary kiln process AntiCorruption Helpline

Sponge Iron Composition Manufacturing Process Lloy. Sponge iron making is a process in which iron ore lumps typically 5mm18mm size are tumbled with a selectgrade of ironcoking coal little dolomite inside an inclined rotary kiln and control busted in the presence of air for about 12 hours before the products are air cooled, magnetically separated, screened and size wise in finished product ...

(PDF) i) Direct Reduced Iron: Production

discussion is restricted to the rotary kiln process only. Normally, the rotary kiln is 60–125 m long ( L )a n d 4–6 m in diameter ( D ), and the L / D ratio is about 15–20.

MGM

Sized iron ore, feed coal1 and feed coal 2 and dolomite are fed continuously to the charge end of Rotary Kiln inclined at Coal and fine coal mixed as per the process requirement is also injected through an injection pipe at the discharge end of Kiln.

(PDF) Operation of CoalBased Sponge Iron Rotary Kiln to ...

Data1 includes temperatures profiles and air inlet at positions, AT1 to AT3 and MF1 and MF2, inside the kiln whereas, flow rates of iron ore, feed coal, slinger coal and sponge iron is ...

SPONGE IRON PLANT

MANUFACTURING PROCESS Coal based Direct reduction process is classified based on the reducing agent namely solid. Most solid reduction process use noncoking coal as reducing agent due to abundantly available noncoking coal. The process proposed to be adopted is the rotary kiln proposes using Noncoking coal and iron ore.

Rotary Kiln – Electrotherm – Engineering Technologies ...

Coal Based Rotary Kiln for Direct Reduced Iron / Sponge Iron (100 TPD, 350 TPD, 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).

Sponge Iron Production In Rotary Kiln By Sarangi Pdf

Sponge Iron Production In Rotary Kiln. Sponge iron production in rotary kiln arabinda increase in the demand of sponge iron is also due to the fact that it is used as a substitute for coking coal which is available in scarcity in the world this book comprehensively deals with the production of sponge iron in the rotary kiln the book is divided into 17

DRI UPDATE Sponge Iron Manufacturer India

2. ED, SIMA requested the participants to volunteer to spare their rotary kiln for carrying out the RD for exploring the use of Syn Gas in the rotary kiln. Mr. T Srinivasa Rao, MD, Balajiswamy Premium Steels Pvt Ltd offered his 50TPD kiln for this purpose. 3. Presentation from Tata Sponge Iron Ltd was very much liked and lot of the people showed

Recovery and utilization of waste heat in a coal based ...

Coalbased sponge iron process The process of the direct reduction of haematite in a rotary kiln ... gas from ESP outlet to rotary kiln an insulated duct, which is a hollow cylinder of 43m length and diameter, is used. To preheat kiln air using waste gas a plate type heat exchanger is

Simulation of Rotary Kiln Used in Sponge Iron Process ...

Simulation of Rotary Kiln Used in Sponge Iron Process Using ANN IACSIT International Journal of Engineering and Technology, Vol. 6, No. 2, April 2014 DOI: / 95 Abstract—In the present study, estimation of actual output parameters is carried out for a sponge iron production process

Direct Reduced Iron and its Production Processes – IspatGuru

Fig 4 Flowsheet of Midrex process. Coal based process. In a coal based process, the reactor for the reduction reaction is a rotary kiln which is slightly inclined to the horizontal position. The process of direct reduction is carried out with the operating temperatures maintained in a …

Coal Gas based DRI Plant Sponge Iron Plant ...

We manufacture Sponge Iron Plant on turnkey basis of different functional capacities 100 TPD, 300 TPD, 500 TPD equipment support provided for the plants include Kiln/cooler tyre, Kiln/cooler support roller, Kiln/cooler support roller shaft, Kiln/cooler support roller assembly with bearing housing, Kiln/cooler girth gear, Kiln/cooler pinions, Kiln/cooler pinion shaft, Kiln ...