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process flow diagram of sponge iron plant

sponge iron process

Jul 29, 2010· Flow chart of SL/RN process has been shown in fig. 1.Sized Iron Ore and Non Coking Coal along with Dolomite are fed continuously to the charge end of Rotary Kiln inclined at 2.5%. Coal is also injected through an Injection Pipe at the discharge end of Kiln.

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SPONGE IRON PLANT

sponge iron, originating from Iron Ore, namely, silica and alumina and the sulphur and phosphorous contents adversely affect the economics in subsequent steel making operation. Therefore, the ore should be high in iron content and low in gangue, Physical Specification Size 5-20 mm Oversize < 5 % max

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Energy survey of the coal based sponge iron industry

Sep 01, 2015· The process flow diagram (PFD) of a conventional coal based sponge iron plant is shown in Fig. 1.Different streams in the PFD are assigned individual number and henceforth each stream will be referred through its respective number.

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Process Description and flow diagram of Coal Based DRI Plant

Aug 07, 2016· Process Description and flow diagram of Coal Based DRI Plant Description of Sponge Iron Manufacturing Process 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.

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CASE STUDY ON THRESHOLD PROBLEM Sponge Iron

Sponge Iron Production Process Process description This is the case study of typical coal based sponge iron plant of 500 tonne per day capacity. The process flow diagram (PFD) of the sponge iron process is shown in Fig. 1. Different streams in the PFD are

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Energy Audit Methodology of Sponge Iron Manufacturing

2. Description of Sponge Iron Manufacturing Process 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

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Sponge Iron an overview ScienceDirect Topics

DRI, also known as sponge iron, is the product of reducing iron oxide in the form of iron ore and steel plant wastes into metallic iron, below the melting point of iron and typically in the range of 800–1200 °C. Iron oxide is charged into shaft furnace, rotary kiln, or fluidized beds in the form of pellet, iron ore lumps, or fines. The reduction takes place using gaseous reductants (CO + H

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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 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

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Sponge iron making process SlideShare

Nov 09, 2014· Sponge iron making process 1. ALBERTUS SEPTYANTOKO 2712100014 SECONDARY AIR Secondary air is introduced axially in the direction of the gas flow The air supplied to the length of the kiln is metered for close control of temperature and gas atmosphere in the kiln Heating zone extends from 25% to 40% along length of the kiln and in the

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Detailed Project Report

3.5.1 Manufacturing Process of Sponge Iron (DRI) 31 3.5.2 Manufacturing process of Pig Iron through Mini Blast Furnace 37 3.5.3 Process and Process Flow diagram of Iron Ore and other Mineral Ore Beneficaiton Plant 42 3.5.4 Process and Process Flow diagram of Coal Washery 49

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CASE STUDY ON THRESHOLD PROBLEM Sponge Iron

Sponge Iron Production Process Process description This is the case study of typical coal based sponge iron plant of 500 tonne per day capacity. The process flow diagram (PFD) of the sponge iron process is shown in Fig. 1. Different streams in the PFD are

More

Energy Audit Methodology of Sponge Iron Manufacturing

2. Description of Sponge Iron Manufacturing Process 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

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Proceedings of the World Congress on Engineering 2011 Vol

II. 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 coal based sponge iron plant where iron ore, feed coal and dolomite are fed to the rotary kiln. A separate conveyor collects

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Flow Chart Of Low Grade Iron Ore Processing Plant

Low Grade Iron Ore Crushing Flow Chart Iron ore processing plant in China generally use the thick broken, broken and fine broken three sections of crushing flowsheets crushing ore. Thick broken multi use 1.2m or 1.5m gyratory crusher, broken using the 2.1m or 2.2m standard cone crusher, fine broken by 2.1m or 2.2m short head cone crusher.

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sponge iron process: 2010

Jul 29, 2010· Flow chart of SL/RN process has been shown in fig. 1.Sized Iron Ore and Non Coking Coal along with Dolomite are fed continuously to the charge end of Rotary Kiln inclined at 2.5%. Coal is also injected through an Injection Pipe at the discharge end of Kiln.

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Direct Reduced Iron and its Production Processes IspatGuru

Mar 16, 2013· Fig 2 Principle of direct reduction process. Gas based process. In the gas based reduction processes, a vertical shaft kiln is used in which iron ore is fed into the top of the kiln and finished sponge iron is drawn off from the bottom after cooling it so as to prevent its re-oxidation.

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Sponge iron making process SlideShare

Nov 09, 2014· Sponge iron making process 1. ALBERTUS SEPTYANTOKO 2712100014 SECONDARY AIR Secondary air is introduced axially in the direction of the gas flow The air supplied to the length of the kiln is metered for close control of temperature and gas atmosphere in the kiln Heating zone extends from 25% to 40% along length of the kiln and in the

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Steel plant flow chart YouTube

Jun 09, 2018· Power point animation of Steel plant flow chart

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(DRI) Direct Reduction Iron Plant Flowsheet Options

Jul 28, 2013· (DRI) Direct Reduction Iron Plant Flowsheet Options 1. DRI Plant Flowsheet Options By: Gerard B. Hawkins Managing Director, CEO 2. DRI Processes Types using Steam Reforming HYL type flowsheets Midrex type flowsheets Lookalikes exist in each category 3. DRI Processes HYL III Process Flowsheet 4.

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Mahendra Sponge and Power Limited

Presently, most of the coal based sponge iron plants in India uses iron ore lumps. The requirement is generally 1.8 t/ t of sponge iron. This high requirement is mainly due to the fines generated in handling the purchased ore from the source to the plant. This reduces the

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WELSPUN STEEL LIMITED

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 metallization (removal of oxygen), which is the ratio of metallic iron to the total iron present in the product. Sponge iron manufacture is highly sensitive to raw material characteristics.

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Midrex Process for Direct Reduction of Iron Ore IspatGuru

Apr 09, 2017· Midrex Process for Direct Reduction of Iron Ore Midrex is an ironmaking process, developed for the production of direct reduced iron (DRI). It is a gas-based shaft furnace process is a solid state reduction process which reduces iron ore pellets or lump ore into DRI without their melting using reducing gas generally formed from natural gas.

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A Thesis Submitted for Partial Fulfillment of the Degree

3.1 Material Balance in a Rotary Kiln sponge iron plant 14 3.2 Energy Balance in a Rotary Kiln sponge based iron making 14 3.3 Schematic of optimised Rotary kiln sponge iron making process 21 4.1 Industrial view of Sponge Iron making Rotary Kiln 24 7.2 Temperature profile at various after start up of flow ratio 9:1 & 8:2 46-50 7.3 Volume

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

In the present work, an effort is made for best utilization of waste heat to reduce energy requirements in sponge iron plants. For this purpose, based on the principles of process integration

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