coal based sponge iron process

SPONGE IRON INDUSTRY

2020-5-1 · India is the world''s largest producer of sponge iron, accounting for 13 per cent of the global production 8. Sponge iron is produced using either coal or natural gas. Since coal is available in India, the sector largely depends on coal based sponge iron which contributes about 80 per cent of the total capacity in the country9.

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 ...

(PDF) Energy survey of the coal based sponge iron industry

2015-4-20 · A survey is made on a typical coal based Indian sponge iron plant of capacity 500 t/d in order to identify the largest energy losses and find ways to …

Productivity Increment of Coal based Sponge Iron Plant ...

Objective: A typical coal based sponge iron plant is investigated to utilized waste heat to preheat the feed coal and air as well as increase the productivity of sponge iron by applying heat integration using simulation process.Methods: In the present work, utilized waste heat to preheat the feed coal and air, heat integration process using modified pinch approach is applied and to …

Sponge Iron

Sponge Iron is a substitute of scrap in steel melting. Although the reduction in the kiln is not direct, the CO gas reduces the impurities and oxides of hematite and the resultant DRI is in the solid form, this process is known as Direct Reduction Process. Coal based DRI process is mainly preferred on account of better non contaminated Iron (Fe ...

Process of making Sponge Iron

Sponge Iron Technology in India and abroad. In India, a modest beginning in the field of sponge iron making was only be made in mid 80''s by setting up the country''s first coal based demonstration-cum-production unit of 30,000 TPA (Tonnes per annum) capacity at Kothagudam, Andhra Pradesh based on M/s Lurgi''s SL/RN technology under UNDP ...

SPONGE IRON PRODUCTION FROM ORE -COAL …

2014-9-2 · 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.

Development of energy conservations scenarios for …

2011-1-16 · Coal based sponge iron plant: a conventional process. The process flow diagram of conventional coal-based sponge iron plant is shown in Fig. 1. The operating data shown in Fig. 1 is taken from a typical Indian sponge iron plant. In the conventional process kiln feed, which consists of iron ore, feed coal, and dolomite, is fed to the rotary kiln.

SPONGE IRON – Lloyd''s Metals

Energy survey of the coal based sponge iron industry - ScienceDir…

Characterization of semi-coke generated by coal-based ...

2015-7-29 · It is generally known that India dominates the coal- based direct reduction process in the world [10]. In India, the sponge iron industries are using poor quality coal with higher ash content, therefore, the production of per ton sponge iron requires higher amount of

Sponge Iron Production Process

2021-9-9 · Market share: About 23% of sponge iron total production. 4) Tunnel furnace process . This process is the oldest direct reduction method. In this method, Thermal coal is mixed with iron …

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

2012-6-1 · Coal-based sponge iron process. The process of the direct reduction of haematite in a rotary kiln is schematically described in the Fig. 1. Haematite and non-coking coal are fed to the kiln at controlled rates without pre-mixing and the charge moves through the kiln depending upon the rotation speed and inclination of the kiln.

(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 ...

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

2015-9-1 · 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

Sponge Iron. MSP Sponge Iron plant uses the highest grade of iron ore and premium quality coal. This ensures very high metallization of Sponge Iron. Sponge Iron is fast becoming a significant input in low-cost steel production. With the availability of abundant raw material in India, the production of sponge is set to multiply over the years.

Sponge Iron Division – Trimula Industries

Sponge Iron Division – Trimula Industries. This plant is based on SL/RN process. Rated capacity of this plant 0.21mtpa. In addition to producing DRI, the system is equipped with waste heat recovery boiler from where we can generate 16 MW/hr power from waste gas.

Direct Reduced Iron Industry in India — Problems and …

2012-12-18 · Such coal based sponge iron is mainly used by induction furnace steel producers leading to technical deficiencies in the steel making process. Further, energy consumption wise, the coal based sponge iron plants are not efficient which can be improved by co-generation using kiln off gas. CONSIDERATIONS IN SETTING UP COAL BASED SPONGE IRON PLANTS

Development of energy conservations scenarios for …

2011-1-16 · This paper presents an approach to find the best modification in the coal-based sponge iron process with an aim to integrate energy in it. For this purpose, a few energy conservation cases are formulated by integrating unutilized energy present in possible areas of process flow sheet. When unutilized energy of the process is properly integrated, energy …

SPONGE IRON PLANT

2018-9-24 · MANUFACTURING PROCESS Coal based Direct reduction process is classified based on the reducing agent namely solid. Most solid reduction process use non-coking coal as reducing agent due to abundantly available non-coking coal. The process proposed to be adopted is the rotary kiln proposes using Non-coking coal and iron ore.

Sponge Iron

Sponge iron is a highly processed form of iron ore that contains metallic iron in the range of 83-88% obtained by direct reduction through reaction with carbon in the form of coal at approx. 1100 degree Celsius. Due to high porosity, the resulting iron is called sponge iron. Sponge iron is also referred to as direct reduced iron or metalized iron.

(PDF) Energy survey of the coal based sponge iron industry

2015-4-20 · A survey is made on a typical coal based Indian sponge iron plant of capacity 500 t/d in order to identify the largest energy losses and find ways to increase the efficiency. The required data are ...

Super Refractories

2019-8-26 · 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 …

what is the process for producing sponge iron in coal based

what is the process for producing sponge iron in coal based coal based slrn direct reduction process As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and different kinds of minerals.

Sponge Iron Manufacturer India

Sponge iron produced using the non coking coal is called coal based sponge iron / DRI. For producing the sponge iron through this process requires high grade of iron ore and non coking coal. Gas Based DRI / HBI. In this process route, iron oxides are converted to the DRI / HBI by using natural gas in a vertical shaft furnace. ...

Direct Reduction of Ferrous Oxides to form an Iron-Rich ...

2015-12-1 · Sponge iron is produced primarily both by using non-coking coal and natural gas as reductant and therefore classified as coal-based and gas-based process, respectively. High purity sponge iron powder is currently manufactured from high purity iron ore following the basic steps of magnetic separation and milling, primary reduction process ...

Coal Briquetting Process Used In Sponge Iron Plant Samac

Coal Based Sponge Iron Production Process, Find Complete Details about Coal Based Sponge Iron Production Process,Sponge Iron Line,Sponge Iron Plant,Sponge Iron Kiln from Cement Making Machinery Supplier or ManufacturerHenan. Prices / Quote. Non Coking Steam Coal Sponge Iron Briquetting Press Machine.