brief process of coal based sponge iron rotary kiln

Process Description and flow diagram of Coal Based DRI Plant Aug 07, 2016· Process Description and flow diagram of Coal Based DRI Plant , dolomite and coal are fed to one end of rotary Kiln as well as some fine coal also fed from discharge end and product sponge iron along with char is taken out from the other end Apart from this, primary and secondary airs are supplied to the Kiln to initiate the combustion and .
use of fines for sponge iron production in coal based , Sponge Iron Production From Ore-Coal Composite , 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
Sponge iron making process - SlideShare Nov 09, 2014· INJECTION COAL Coal Crushing Combustion Injection to kiln Coal Injection over a large range of size 0-20 mm Temperature combustion below 950 C Coal injection system makes use of voal volatiles for reduction, thereby reducing the coal requirement to a minimum Coal Injection can decrease energy consumption 8 ROTARY KILN 9
Case Studies in Thermal Engineering Energy survey of the coal based sponge iron industry , Sponge iron Rotary kiln Energy efficiency Exhaust , process efficiency is about 5131% The energy balances of the process show that the gap
Profitability analysis of power generation using waste , Dec 15, 2017· The schematic of sponge iron process is shown in Fig 1 where raw material enters to the kiln from feed end and moves toward the discharge end due to rotation and inclination of kiln Sponge iron exits from discharge end Air enters the kiln as primary and secondary air, which is due to the process requirement, as shown in Fig 1Solid products from the rotary kiln enter into the rotary ,
SPONGE IRON PRODUCTION IN ROTARY KILN PDF DOWNLOAD The iron ore and coal crushed and screened to respective sizes are fed to rotary kiln through feed tube in pre-determined ratio Depending on the reducibility, calibrated ore in the size range of 5 mm to 20 mm is generally used Coal based direct reduction process is based on the solid reducing agent which is non-coking coal
sponge iron process Aug 03, 2011· COAL INJECTION IN ROTARY KILN KRamu, CRamesh, ARajasekaran During the process of manufacture of sponge iron, coal injection plays a very vital role in maintaining the product quality Due to highly endothermic nature of Boudouard reaction, heat has to be continuously supplied in entire reduction zone of rotary kiln
Sponge Iron Production in Rotary Kiln - Arabinda Sarangi , The increase in the demand of sponge iron is also due to the fact that it is used as a substitute for coking coal which is available in scarcity in the world This book comprehensively deals with the production of sponge iron in the rotary kiln The book is divided into 17 chapters The initial chapters give a brief on the fundamental theories and basic principles of sponge iron production .
Processing Coal By Rotary Kiln Of Cv Mekarjayatechnic processing iron sand to sponge iron by rotary kiln Sponge iron rotary kiln is the widely used sponge iron processing equipmentIn the rotary kiln, with coal, coke or other fuels,the iron ore or iron concentrate pellets realize low-temperature reduction under the melting temperature conditions,becoming porous products
Study on Accretion Formation on DRI kiln during spong , Study on Accretion Formation on DRI kiln during spong iron production Chandrashekhar shrivas, Himanshu shrivas Abstract---Today is an era of competition, and contrary to this the Iron and steel industries are also suffering from the same One of the major challenges for sponge iron plant is the Accretion formation Through this
SPONGE-IRON Sponge Iron, also known as Direct Reduced Iron is produced from Hematite Iron ore (5 to 18 mm size) by removing the oxygen by direct reduction process using non coking coal as the fuel and reducing agent in Rotary Kiln Sponge iron is rich in Metallic Iron (Pure Iron) with ,
air calculation in dri rotary kiln Sponge Iron Rotary Kiln Simulator - TCS by coal in a rotary kiln The model uses ore and coal properties such as particle size distribution and chemical analysis along with kiln geometry and air profile, More details » Get Price
A Thesis Submitted for Partial Fulfillment of the Degree , A Thesis Submitted for Partial Fulfillment of the Degree Award Of MASTER OF TECHNOLOGY In , 32 Energy Balance in a Rotary Kiln sponge based iron making 14 , successfully manufactured in various parts of the world through either natural gas or coal-based technology Iron ore is reduced in solid state at 800 to 1,050 °C (1,472 to 1,922 °F .
Flow of materials in rotary kilns used for sponge iron , Abstract 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
Modelling and optimization of a rotary kiln direct , Illustrative examples are included for the case of a generic rotary kiln iron-ore reduction process Rotary kiln model Kiln modelling consists of two steps An Excel®-based calculation is used to determine the kiln bed profile and residence time based on specific operating conditions and the kiln configuration, followed by a calculation of the .
Simulation of Rotary Kiln Used in Sponge Iron Process , Simulation of Rotary Kiln Used in Sponge Iron Process Using ANN IACSIT International Journal of Engineering and Technology, Vol 6, No 2, April 2014 DOI: 107763/IJET2014V6673 95 Abstract—In the present study, estimation of actual output parameters is carried out for a sponge iron production process
Rotary Kiln – Electrotherm – Engineering & Technologies , Coal Based Rotary Kiln for Direct Reduced Iron / Sponge Iron (100 TPD, 350 TPD, 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)
WELSPUN STEEL LIMITED During lite up there is a start up burner at the kiln discharge end which is oil fired to heat up the rotary kiln To ignite the injected coal from outlet of the kiln When the desired temp is reached, Iron ore, coal & lime stone or dolomite are fed from kiln feed end and also coal is injected from from kiln ,
Rotary Kiln Iron - downsideupbe brief process of coal based sponge iron rotary kiln manufacturer in Shanghai, China brief process of coal based sponge iron rotary kiln is manufactured from Shanghai , More details Aavishkar Machinery Pvt Ltd is leading Rotary Kiln Manufacturer, Vertical shaft kiln Manufacturer, Iron Ore Pellet Plant Manufacturer
Energy Audit Methodology of Sponge Iron Manufacturing , 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 the other end Apart from this, primary
Tunnel Kiln – Electrotherm – Engineering & Technologies , Tunnel Kiln history dates back to 1807 when Hoganas first used this process to produce iron powder of 999% purity When iron ore is mined or processed (in a crusher), lots of fines are generated Quantity of fines generation is a function of the quality of ore ie whether it is hard or soft
process making sponge iron rotary kiln The process of sponge iron making aims to remove oxygen from iron ore , the reduction of iron ore as against a rotary kiln in coal based sponge iron process Get Price , China Rotary Kiln Process of Making Sponge Iron, Find details about China Rotary Kiln Process of Making Sponge Iron, Sponge Iron Rotary Kiln from Rotary.
SPONGE IRON PRODUCTION IN ROTARY KILN PDF The quality requirement of sized iron ore is to meet physical, metallurgical, and chemical requirements Very high volatile coals, though yield highly reactive char, are also not preferred since it increases gas volume in the kiln Coal based Direct Reduction Rotary Kiln Process
rotary kiln for iron sand processing brief process of coal based sponge iron rotary kiln brief process of coal based sponge iron rotary kiln is manufactured from Shanghai Xuanshi,It is the main mineral processing The main the XSM production of sand , Iron Ore Roasting Rotary Kiln for Sale - Savona Equipment
Recovery and utilization of waste heat in a coal based , 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
coal based sponge iron process - ristorantecaminettoit The process flow sheet of a typical coal-based sponge iron plant with material and energy balanced operating data is shown in the figure 1 The overall production capacity of the plant is 100tpd In this process screened iron ore (65tph), coal (3529tph) and dolomite (02tph) are charged into the rotary kiln About 40% of total 5958 tph coal .
Brief Process Of Coal Based Sponge Iron Rotary Kiln Brief Process Of Coal Based Sponge Iron Rotary Kiln 2 D Model of Sponge Iron Rotary Kiln Developed variation in mass fraction of Fe content in kiln outlet stream is observed based on kiln which consists of iron ore, coal rotary kiln of sponge iron process Get Price And Support Online; A Thesis Submitted for Partial Fulfillment of the
Direct Reduced Iron Industry in India — Problems and , 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 Coal based rotary kiln sponge iron plants have mushroomed in India mainly in the states of Madhya
Rotary Kiln Process Of Making Sponge Iron Grinding Mill coal used in rotary kiln sponge iron The process of sponge iron making aims to remove the oxygen from iron ore gangue content In Sponge Iron Process , two types of coal are being used such as feed For the direct reduction of iron ore the main furnace used is rotary kiln
coal based lurgi dri process flow chart The most popular process adopted by coal based sponge iron plants is SL-RN , The castables installed in a rotary kiln , »More detailed sponge iron process Flow chart of SL/RN process has been shown in fig 1Sized Iron Ore and Non Coking , 1985 Various tests on raw materials to be used for coal based rotary kiln »More detailed Sree .