SPONGE-IRON - Shakambhari Group

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. Iron ore fines and the low grade beneficiated iron ore cake are directly used for manufacturing of sponge iron in tunnel kilns.

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

Nov 01, 2015· (SL/RN) Stelco-Lurgi/Republic-National rotary kiln process

sponge iron process

Mar 01, 2017· Simulation of rotary kiln for sponge iron process is based on combustion of coal particles and reduction of iron ore. The heat transfer inside the kiln is done through radiation. The model equations used for computation of desired parameters, such as temperature profile and % metallization, are tabulated in Table 3 .

Components Required For Rotary Kiln For Sponge Iron Plant

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.

(PDF) Operation of Coal-Based Sponge Iron Rotary Kiln to ...

2II. Rotary kiln: Operation and construction details A schematic diagram of the rotary kiln of sponge iron process considered for the present work is shown in Fig. 1. The rotary kiln consists of a rotating cylindrical shell lined inside with refractory material. The kiln is around 80 m long with 4 m

Sponge iron making process - SlideShare

Jan 30, 2011· The process of reducing the iron ore in solid form by reducing gases is called direct reduction. This book deals with the basics of sponge iron production in rotary kiln, describing the operational problems and control needed to produce a quality product.

Accretion Control in Sponge Iron Production Kiln using ...

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

SL - RN (Iron Making Rotary Kiln Process for DRI ...

Nov 09, 2014· Sponge iron making process 1. ALBERTUS SEPTYANTOKO 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

Sponge Iron Products - Girth Gear for Sponge Iron Kiln For ...

Index Terms—Sponge iron process, rotary kiln, temperature profile, artificial neural network. I. INTRODUCTION Sponge iron is the metallic form of iron produced from reduction of iron oxide below the fusion temperature of iron ore (1535oC) by utilizing hydrocarbon gases or carbonaceous fuels as coal. The reduced iron having high

(PDF) i) Direct Reduced Iron: Production

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.

Sponge Iron Production in Rotary Kiln, Sarangi, A. Sarangi ...

Process Control. 199 Downloads; 11 Citations; Abstract. The formation of accretions or 'rings' in rotary kilns used for the manufacture of directly reduced iron (sponge iron) affects the residence time of the charge, kiln hold-up, and the kiln output to a great extent. In this part of the work, the effect of ring formation was simulated at ...

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

Sponge Iron Rotary Kiln. Specifications: Sponge iron is a kind of superior iron ore. It can be got by oxidation-reduction reaction. In sponge iron rotary kiln, vertical furnace and other reactor, iron ore and other iron ore concentrates are reduced in low temperature condition and …

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

Mar 23, 2019· Hello friends In this video we see kiln and it's basic mechanical equipments like support roller,Tyre,Girth gear,shell air tube,shell air fan etc

New Sponge Iron Rotary Kiln Design In Sponge Iron ...

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

ORISSA SPONGE IRON AND STEEL LTD.

Our cement rotary kiln and sponge iron rotary kiln has been developed for performing drying, calcination and sintering work in a continuous process. Widely used for cement, pet coke calcination, sponge iron and other materials, it uses hot gases for the operation.

Sponge Iron - an overview | ScienceDirect Topics

Sep 10, 2020· Sponge Iron Manufacturing Process of New Design Sponge Iron Rotary Kiln Energy Comprehensive Utilization System. The iron concentrate, dolomite, and coal from the stockyard enter into three groups of metering pneumatic conveying devices of the feeding system for metering. The measured iron concentrate, dolomite, and 50% of coal all enter the ...

(PDF) Operation of Coal-Based Sponge Iron Rotary Kiln to ...

Jul 29, 2010· In general sized iron ore of 5-18mm is used in the process of manufacture of sponge iron on all types of rotary kiln with +16mm not exceeding 15-20%.The mean particle size of iron ore shall be restricted to 11mm in order to achieve uniform Fe metallic of all grain size fraction of the product.

Rotary Kiln - Cement Rotary Kiln and Sponge Iron Rotary Kiln

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 ...

China Rotary Kiln Process of Making Sponge Iron - China ...

4. The rotary kiln is 70 meters in length and 4.4 meter in diameter. This kiln … Sponge Iron Production From Ore. 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. Iron ore fines and the low ...

OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION …

Sponge iron kiln's transmission equipment: Sponge iron kiln is equipped with the single or dual transmission. DC motor or variable frequency speed control motor controls the rotating speed. It makes the sponge iron kiln has the characters of stable work, energy-saving and efficient.

Modelling and optimization of a rotary kiln direct ...

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 ...

Kiln/Rotary kiln/Sponge iron division kiln/350Tpd kiln ...

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 ...