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Accretion Control In Sponge Iron Production Kiln

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 noncoking coal patra et al 2005 the reduction process is carried out in an inclined horizontal rotary kiln which rotates at a programmed speed

A Thesis Submitted For Partial Fulfillment Of The

33 schematic of optimised rotary kiln sponge iron making process 21 41 industrial view of sponge iron making rotary kiln 24 42 schematic view of internal heat exchange in rotary kiln 26 43 schematic view of lobe blower 27 44 schematic view of air amp material flow in rotary kiln 27 45 filling of bed geometry 28

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 8001200 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

Pdf Operation Of Coalbased Sponge Iron Rotary Kiln To

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

China Rotary Kiln Process Of Making Sponge Iron China

Model no rotary kiln process of making sponge iron type ironmaking equipment certification iso lateritic nickel rotary kiln rotary kiln for laterite nickel ore calcining output 80100 throasted sand application roasting laterite ores

Making Sponge Iron With Rotary Kiln

Sponge iron composition manufacturing process sponge iron making is a process in which iron ore lumps typically 5mm18mm size are tumbled with a select grade of ironcoking 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

Sponge Iron Production From Ore Coal

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

Dri Update Sponge Iron Manufacturer India

2 ed sima requested the participants to volunteer to spare their rotary kiln for carrying out the rampd 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

Coal Based Sponge Iron Process In South Africa

Iron sponge process an overview sciencedirect topics disadvantages of the iron sponge process of 400000 tonsyear the kiln was 126 m long and 6 m in diameter the 150000 tonsyear codir plant in dunswart south africa is 75 m long and 45 m in these customized technologies are dominating the coal based sponge iron process in india

Excellent Sponge Iron Kiln To Deal With Your Rotary Kiln

Sponge iron kilns cylinder the design of the sponge iron rotary kiln cylinder is more reasonable the cylinder is rolled with a q235b 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

China Rotary Kiln Furnace For Sponge Iron Calcination

Kiln furnace rotary kiln furnace rotary furnace manufacturer supplier in china offering rotary kiln furnace for sponge iron calcination high efficiency jaw crusher demolition equipment cement triturator stone construction energy saving grinding ball mill wet and dry ball mill feldspar granite powder making raw mill grinder mill and so on

First Rotary Kiln In Zimbabwe To Produce Sponge Iron From

More details conversion of sponge iron from low grade iron ore the process of dri or sponge iron making can be classified into different categories as given below a rotary klin process rotary kiln method is very important for sponge iron production using noncoking coal as a reluctant the iron ore is charged from one end with noncoking coal which is in the lump form or pellets and heated from

2 D Model Of Sponge Iron Rotary Kiln Developed Using

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

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 desulphurizing 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 is a wellestablished process for production of coal based sponge iron rotary kiln of certain dia and length is provided for reduction of iron ore into sponge iron using noncoking coal as reductant and dolomite as sulphur scavenger however the diameter and length are to be designed based on the plant capacities

Simulation Of Rotary Kiln Used In Sponge Iron Process

Rotary kiln is cylindrical in shape and is 80m long having 42m internal diameter this is the reactor of the process where reduction as well as combustion reactions are carried out the role of kiln is to convert the raw material iron ore coal and dolomite into the sponge iron 8 detail reaction mechanism of the process is discussed below

A Thesis Submitted For Partial Fulfillment Of The Degree

Accretion or ring formation during actual manufacture of sponge iron in the temperature range of 9000c to 11000c ring formation is a phenomenon occurring exclusively in a rotary kiln while clusters and agglomerates are common in both rotary kiln and shaft based processes in the

Sponge Iron Making Process Slideshare

Nov 09 2014 rotary cooler the product come to the water cooled where its temperature reaches to 80100 c 11 rotary cooler the product is conveyed to the product separation and storage building the product is sponge iron and char place that spraying a controlled amount of water directly into hot solids and by spraying additional water outside the cooler shell

Sponge Iron Process

Jul 29 2010 in general sized iron ore of 518mm is used in the process of manufacture of sponge iron on all types of rotary kiln with 16mm not exceeding 1520the 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

Coal Based Direct Reduction Rotary Kiln Process Ispatguru

The iron ore and coal crushed and screened to respective sizes are fed to rotary kiln through feed tube in predetermined ratio the rotary kiln is slightly inclined at an angle 25 degree and rotated by ac variable speed motor at a variable speed ranging from 02 rpm revolutions per minute to 10 rpm

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 8001200 c iron oxide is charged into shaft furnace rotary kiln or fluidized beds in the form of pellet iron

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 desulphurizing 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 is a wellestablished process for production of coal based sponge iron rotary kiln of certain dia and length is provided for reduction of iron ore into sponge iron using noncoking coal as reductant and dolomite as sulphur scavenger however the diameter and length are to be designed based on the plant capacities

Simulation Of Rotary Kiln Used In Sponge Iron Process

Rotary kiln is cylindrical in shape and is 80m long having 42m internal diameter this is the reactor of the process where reduction as well as combustion reactions are carried out the role of kiln is to convert the raw material iron ore coal and dolomite into the sponge iron 8 detail reaction mechanism of the process is discussed below

A Thesis Submitted For Partial Fulfillment Of The Degree

Accretion or ring formation during actual manufacture of sponge iron in the temperature range of 9000c to 11000c ring formation is a phenomenon occurring exclusively in a rotary kiln while clusters and agglomerates are common in both rotary kiln and shaft based processes in the

Sponge Iron Making Process Slideshare

Nov 09 2014 rotary cooler the product come to the water cooled where its temperature reaches to 80100 c 11 rotary cooler the product is conveyed to the product separation and storage building the product is sponge iron and char place that spraying a controlled amount of water directly into hot solids and by spraying additional water outside the cooler shell

Sponge Iron Process

Jul 29 2010 in general sized iron ore of 518mm is used in the process of manufacture of sponge iron on all types of rotary kiln with 16mm not exceeding 1520the 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

Coal Based Direct Reduction Rotary Kiln Process Ispatguru

The iron ore and coal crushed and screened to respective sizes are fed to rotary kiln through feed tube in predetermined ratio the rotary kiln is slightly inclined at an angle 25 degree and rotated by ac variable speed motor at a variable speed ranging from 02 rpm revolutions per minute to 10 rpm

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 8001200 c iron oxide is charged into shaft furnace rotary kiln or fluidized beds in the form of pellet iron