(PDF) Modeling of Rotary Kiln for Sponge Iron Processing

Simulation of Rotary Cement Kilns Using a One-Dimensional Model By Vivek Ranade 523-1 Designing of an Intelligent Fuzzy Logic System for Accretion Prevention in Sponge Iron SL/RN Rotary Kiln Based 100TPD Dri Process

USE OF SPONGE IRON - NIT Jamshedpur

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

(PDF) " A study on the accretion formation in DRI kilns

The complexity of a processing plant determines the type of control strategy to be implemented. Sponge iron production process requires accurate monitoring and control of the process parameters. The performance of rotary kiln sponge iron based processes is

complete process of sponge iron kilns

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) Solidstate 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 (PDF

Recovery and utilization of waste heat in a coal based

reduction technology has emerged as a potential process for iron and steel making. ∗ Corresponding radial author. Tel.: +91 661 2462267; fax: +91 661 2462999. ... Coal-based sponge iron process ... gas from ESP outlet to rotary kiln an insulated duct, which is a hollow cylinder of 43m length and 0.6m diameter, is used

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

DRI UPDATE - Sponge Iron Manufacturer India

2. ED, SIMA requested the participants to volunteer to spare their rotary kiln for carrying out the R&D 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

Rotary Kiln Maintenance Procedures

rotary kiln operations. Regardless of rotary kiln size or configuration the basic principles outlined in this manual govern the reliable operation of every rotary kiln, calciner, dryer, incinerator, digester and cooler application. For questions or problems with your specific application please contact North

Modelling and optimization of a rotary kiln direct

The kiln model applied in this work was developed by Hatch over a number of years and has been used for several rotary kiln projects. It has its roots in a FORTRAN program that was developed by Venkateswaran (1978) to study the reduction of iron ore. The original software was used to model the operation of a 35 m pilot kiln at the Stellco company

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

SPONGE IRON – Lloyd's Metals

Process. 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

sl rn technology for prdution ofsponge iron

Rn Technology For Prdution Ofsponge Iron The process dynamics of sponge iron production depends largely on kiln rotation Read More Patent WO2014111901A2 An efficient process in the rotary kiln based sponge iron plant process pdf sl rn technology for get price

New Sponge Iron Rotary Kiln Design In Sponge Iron

Sep 10, 2020 During the sponge iron manufacturing process, hot air enters through the air tube and air nozzle of the sponge iron kiln, providing heat for the reaction. The waste gas produced by the rotary kiln first enters the dust settling chamber, and the settled dust is finally discharged by the scraper. The treated exhaust gas can enter the waste heat

OPERATIONAL ASPECTS OF SPONGE IRON

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 iron

SPONGE IRON PLANT

The rotary kiln process chosen for the unit considers reduction of iron ore (5-20 mm) with solid carbonaceous material like coal heated up to a temperature of 950-10000c in rotary kiln and then. www.spongeitc.com 10. cooled in a rotary cooler with external water cooling system

(PDF) Modeling of Rotary Kiln for Sponge Iron

Modeling of Rotary Kiln for Sponge Iron Processing Using CFD package (ANSYS 13.0) A Thesis Submitted for Partial Fulfillment of the Degree Award Of MASTER OF TECHNOLOGY In CHEMICAL ENGINEERING Under the supervision of

(PDF) Operation of Coal-Based Sponge Iron Rotary

Also, the process conditions in a sponge iron rotary kiln are dynamic in nature. Hence, the quality keeps fluctuating and is not a constant value. A mathematical mass

A Thesis Submitted for Partial Fulfillment of the

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

(PDF) i) Direct Reduced Iron: Production

Mar 30, 2016 This product is known as direct reduced iron (DRI) or sponge iron. Processes that produce iron by reduction of iron ore (in solid state) below the melting point are generally classified as

Sponge iron making process - SlideShare

Nov 09, 2014 Sponge iron making process. 1. ALBERTUS SEPTYANTOKO 2712100014. 2. IRON ORE • Iron = 65-67 % • SiO2 + Al2O3 = 2-3 % • CaO + MgO = 0,5-1 % • Sulphur = 0,02 % max • Phosphorus = 0,04 % max Chemical Composition • Size = 5-18 mm • Shatter Index = +95 % • Tumbler index = +88 % • Reducibility Index = +94 % • Thermal Degradation Index = 5 % Physical Composition