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Excellent Sponge Iron Kiln To Deal With Your ... - Rotary Kiln

Sponge iron kiln’s cylinder: The design of the sponge iron rotary kiln cylinder is more reasonable. The cylinder is rolled with a Q235-B steel plate to ensure five mechanical properties, usually with automatic welding. The wall thickness of the cylinder is generally 25 mm, and that of the firing zone is 32 mm.

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Direct Reduced Iron Industry in India — Problems and

2012-12-18  CONSIDERATIONS IN SETTING UP COAL BASED SPONGE IRON PLANTS Coal based rotary kiln sponge iron plants have mushroomed in India mainly in the states of Madhya Pradesh, West Bengal, Orissa, Jharkhand, Goa, Andhra Pradesh, Karnataka and in small numbers in other states mainly due to relatively low investment costs, scarcity and high cost of quality steel scrap and on the

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A Thesis Submitted for Partial Fulfillment of the Degree ...

2012-5-29  3.3 Schematic of optimised Rotary kiln sponge iron making process 21 4.1 Industrial view of Sponge Iron making Rotary Kiln 24 4.2 Schematic view of internal heat exchange in Rotary kiln 26 4.3 Schematic view of Lobe Blower. 27 4.4 Schematic view of Air material flow in Rotary kiln 27 4.5 Filling of Bed Geometry 28

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A STUDY OF RING FORMATION OF SPONGE IRON IN

2012-1-10  Experiments for the production of sponge iron in a 34 feet long rotary kiln were successfully conducted at the National Metallurgical Laboratory using pellets made from Donimalai haematite ore and bituminous coal from Maharashtra also nut coke. The iron ore was of high grade with 65-66% Fe, 1.6-2.05% Si02 and 3.0-3.8 per cent A1 203.

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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 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 ...

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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

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Dynamic quality prediction and control in rotary sponge ...

Operation of Coal-Based Sponge Iron Rotary Kiln to Reduce Accretion Formation and Optimize Quality and Power Generation

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Study on Air Tubes Failure in Sponge Iron Rotary Kiln

2015-12-4  Keywords: Sponge Iron, Heat Transfer, Rotary Kiln . 1. Introduction . In Rotary kiln, carbon is charged from either end, in one end in the form of coal particles and in another in form of coal lumps. The coal reacts with air to form carbon monoxide which then reduces iron oxide (ore) to iron. So, in a kiln,

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An Investigation on the Cracking of Air Tubes of Rotary ...

2011-9-28  The failure analysis of air tubes of rotary kilns in a coal-based sponge iron plant has been presented in this paper. The sponge iron plant has a production capacity of 390,000 T/annum with two kilns of 300 T/day and one kiln of 500 T/day production capacities.

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Excellent Sponge Iron Kiln To Deal With Your ... - Rotary Kiln

Sponge iron kiln’s cylinder: The design of the sponge iron rotary kiln cylinder is more reasonable. The cylinder is rolled with a Q235-B steel plate to ensure five mechanical properties, usually with automatic welding. The wall thickness of the cylinder is generally 25 mm, and that of the firing zone is 32 mm.

More

Flow of materials in rotary kilns used for sponge iron ...

Looking forward to the need of developing coal-based sponge iron technology in India, a country having no significant resources of either coking coal or natural gas, the Research and Development Division of the Tata Iron and Steel Company Limited (TISCO) set up a rotary kiln based direct reduction pilot plant in 1975. In this pilot plant, a totally indigenous technology for production of ...

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Rotary Kiln Manufacturers Electrotherm ET

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 ...

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Rotary kiln sponge iron processes100 t/d

Rotary kiln sponge iron processes100 t/d Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Rotary kiln sponge iron processes100 t/d, quarry, aggregate, and different kinds of

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A Thesis Submitted for Partial Fulfillment of the Degree ...

2012-5-29  3.3 Schematic of optimised Rotary kiln sponge iron making process 21 4.1 Industrial view of Sponge Iron making Rotary Kiln 24 4.2 Schematic view of internal heat exchange in Rotary kiln 26 4.3 Schematic view of Lobe Blower. 27 4.4 Schematic view of Air material flow in Rotary kiln 27 4.5 Filling of Bed Geometry 28

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A STUDY OF RING FORMATION OF SPONGE IRON IN

2012-1-10  for the production of sponge iron in a 34 feet long rotary kiln were successfully conducted at the National Metallurgical Laboratory using pellets made from Donimalai haematite ore and bituminous coal from Maharashtra also nut coke. The iron ore was of high grade with 65-66% Fe, 1.6-2.05% Si02 and 3.0-3.8 per cent A1 203. The

More

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 ...

More

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 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 ...

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Sponge Iron SpringerLink

2020-3-3  The rate of iron ore charged to the rotary kiln furnace is 5.75 t/hr. Example 7.3 Find out the change of free energy \( (\Delta G_{r,298}^{ \circ } ) \) and

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An Investigation on the Cracking of Air Tubes of Rotary ...

2011-9-28  Cracking of an air tube used for supplying air in rotary kiln of a sponge iron plant is investigated in this paper. The material of the air tube is ASTM A297 HK 40, a member of the heat-resistant cast alloy family (H series) steels widely used for enhanced high-temperature properties. Microstructural degradation occurring at high temperature affects mechanical and corrosion-resistance ...

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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 ...

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Rotary kiln sponge iron processes100 t/d

Rotary kiln sponge iron processes100 t/d Products. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including, Rotary kiln sponge iron processes100 t/d, quarry, aggregate, and different kinds of

More

A STUDY OF RING FORMATION OF SPONGE IRON IN

2012-1-10  for the production of sponge iron in a 34 feet long rotary kiln were successfully conducted at the National Metallurgical Laboratory using pellets made from Donimalai haematite ore and bituminous coal from Maharashtra also nut coke. The iron ore was of high grade with 65-66% Fe, 1.6-2.05% Si02 and 3.0-3.8 per cent A1 203. The

More

A Thesis Submitted for Partial Fulfillment of the Degree ...

2012-5-29  3.3 Schematic of optimised Rotary kiln sponge iron making process 21 4.1 Industrial view of Sponge Iron making Rotary Kiln 24 4.2 Schematic view of internal heat exchange in Rotary kiln 26 4.3 Schematic view of Lobe Blower. 27 4.4 Schematic view of Air material flow in Rotary kiln 27 4.5 Filling of Bed Geometry 28

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Tpd Sponge Iron Kiln Dimensions, Rotary Kiln

Design Parameters Of Rotary Kiln For Dri Sponge Iron. May 01 2013 difference between sponge iron kiln and cement kiln posted atmay 1 2013 45 2978 ratings modeling of rotary kiln for sponge iron processing using cfd sponge iron si dri is also known as sponge iron because of its spongy micro structure.

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USE OF SPONGE IRON - Cradle of technical excellence

2020-3-30  Problems of Rotary Kiln process a)Low productivity. b)Building up of accretions or ring formation. c)Erratic operation. d)Heat loss through exit gas. e)Sponge iron contains low carbon. Minimization of these problems: a)Low productivity-Productivity can be improved by: 1)High reactivity coal can be used. 2)Pick up of ore with high reducibility.

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Accretion Control in Sponge Iron Production Kiln using ...

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 non-coking coal [5].

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The Survey for CDM Project of Heat Recovery System at

The most rotary kiln plants for sponge iron production in India don’t have heat recovery system of hot waste gas. By installing the heat recovery system in these plants, the gas is recovered to produce steam then is utilized for power generation. The generated power is used in each plants, and the excess amount of power will be sold to grids.

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CLEAN DEVELOPMENT MECHANISM PROJECT DESIGN

2015-10-6  The ASL Sponge Iron unit consists of one rotary kiln of 500 TPD. The generation of flue gas from the kiln at full capacity is 120,000 Nm3/hr at 950-10000C. The rotary kiln is directly connected to the WHRB Boiler, with a steam generation capacity of 52 TPH. The total waste flue gas generated is ducted

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Sponge Iron Iron Steelmaking

2017-7-31  Sponge iron is the product created when iron ore is reduced to metallic iron, in the presence of coal, at temperatures below the melting point of iron. The external shape of the ore is retained with 30% reduction in weight due to oxide reduction resulting in change in true density from 4.4 gm/cc to 7.8 gm/cc in this product

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