In the solid reduction process iron ore is converted into DRI in a rotary kiln fired by noncoking coal. Iron ore, coal and dolomite in premeasured quantities are fed .
May 01, 2013· Sponge Iron (SI): DRI is also known as Sponge Iron because of its spongy micro structure. . ore lumps or iron ore pellets with the help of noncoking coal in Rotary Kiln (in Coal based Plants) ... But usually iron content of ores ranges between 5065/67% (rich ores) and 3035% (lean ores); .. Sinter Plant /Cement Industry . »More detailed
The hot gases may be generated in an external furnace or by a flame inside the kiln. CHAENG cement rotary kiln and sponge iron rotary kiln has been developed for performing drying, calcination and sintering work in a continuous process.
In the sponge iron process concentrated and finely divided iron ore is reduced in solid phase into sponge iron at high temperatures in rotary kiln. The process is very energy demanding. In order to identify the largest losses and to find ways to increase the efficiency, an energy survey of the sponge iron plant was carried out for a number of ...
May 17, 2017· The RHF is the process reactor which consists of a flat, refractory hearth rotating inside a stationary, circular tunnel kiln. Inside the RHF, direct reduction of iron ore or ironbearing waste materials occurs, using coal as the reductant.
feedstock of iron ore and noncoking coal. It explains why kilns using pellets give higher throughput compared to kilns using iron ore. Reduced fines and uniform size together create a condition that allows kilns to be filled more and faster. Arguably, iron ore feeds can achieve equally high throughput, if .
mechanics of rock structures, electrical circuits, thermodynamics, fluid mechanics and engineering design and their applications in solving mining engineering .Why control grade in mining ore. why magnetite ore not used in the sponge iron rotary kiln.
6 CHAPTER 02 LITERATURE REVIEW 7 In Sponge Iron industry Rotary kiln is the key equipment used to reduce iron ore to sponge iron form. For design and optimization of rotary kiln, it is necessary to understand the detailed processes that take place in the kiln.
Iron Ore and Coal are drawn with the help of weigh feeders in the required quantity and proportion and fed on to common conveyor. These raw materials enter into the rotary kiln through a feed chute. 4. The rotary kiln is 70 meters in length and meter in diameter. This kiln is .
reduces iron oxide (ore) to iron. So, in a kiln, there are two sources of energy, one in the lance injecting coal particles from one end and the second is the coal in charge bed where reduction of iron ore occurs. The air tubes are located along the length of the kiln and they inject air into the kiln.
Rotary kiln is a rotating cylindrical vessel which is used for drying, calcination and sintering in a continuous process with the use of hot gas The hot gases may be generated in an external furnace or by a flame inside the kiln 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 .
Nov 09, 2014· Making process iron ore to sponge iron. ... Sponge iron making process 12,377 views. Share; Like; ... ROTARY KILN 9. ROTARY KILN 10. 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 ...
China Rotary Kiln,Industry Rotary Kiln,Sponge Iron Rotary ... We are a professional Rotary Kiln manufacturer in China, providing flowchart and installation service. According to different fuels, rotary kiln can be classified into gasfired rotary kiln, oilfired rotary kiln and coalfired rotary kiln.
Apr 18, 2013· CFD MODELLING OF THE FLOW THROUGH A GRATEKILN. of NOx emissions in a gratekiln iron ore pelletizing plant, the aim of this . aerodynamics and mixing of species inside the rotary kiln. At first, a parametric study . »More detailed
of the latest advances in rotary kiln maintenance technology. Our products and services are state of the art. Our major kiln maintenance and repair activities are broken down as follows: 1. Hot Kiln Alignment NAK provides the most accurate and comprehensive kiln alignment in the industry. Our procedure consists of optimizing shell ovality, without
A brief insight into the production area where a lid for a Form 1382 pot is being made highlights this perfectly: place the mould on the potter's wheel, fill with liquid mass, form the cast, pour out the plaster moulds, dry the casts, lift off the cast cover, cut out the hole in the lid, open the plaster mould, take out the cast, place it on one side, put the casting mould together for the ...
2 D Model of Sponge Iron Rotary Kiln Developed Usi. design of rotary kiln such as smaller inclination angle, medium gas flow rate and low rotational speed in the range of 350, 37 kg s and 110 rpm respectively [2] Present work is to analyze the performance of rotary kiln through CFD, so a few studies related to it are discussed hernder: Mujumdar, Arora, and Ranade discussed plexity of rotary
In the closed based sponge iron plants, water is used mainly in three areas namely cooler,ABC and wet scrubber. The water requirement in rotary kiln DRI plants in mainly for cooling the discharge feed form 0C to below 100C .Water is continuously sprinkled over the rotary cooler shell and is allowed to
Rotary kiln is a rotating cylindrical vessel which is used for drying, calcination and sintering in a continuous process with the use of hot gases. The hot gases may be generated in an external furnace or by a flame inside the kiln. CHAENG cement rotary kiln and sponge iron rotary kiln has been developed for performing drying, calcination and sintering work in a continuous process.
The above kiln dia and length can produce 100MT of sponge/ all reaction takes place in solid state the product from the kiln transfered to a rotary drum called COOLER,where sponge iron ...
iron ore have affected the iron ore availability. To take care of present iron ore scenario it is imperative that iron ore export should be banned and fiscal incentive be given to the iron ore pelletizing units. Government should award the iron ore mines only to those units who undertake to set up agglomeration facilities at the mine pit head.
Direct Reduced Iron / Sponge Iron Process (DRI) The process of reduction takes place inside the rotary kiln, which is mounted on tyres and supported by support rollers. The transverse motion of the kiln is controlled with the help of hydro thruster and thrust rollers. .
SIPL is operating 4 x 100 TPD Direct Reduced Iron Rotary Kilns for production of 2000 TPA Sponge Iron at Purulia, using the proven German SL/RN technology. 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.
A schematic diagram of the rotary kiln of sponge iron process, feed end of the kiln which consists of iron ore, coal and dolomite. Chat Online; OPERATIONAL ASPECTS OF SPONGE IRON, OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION, ing of iron ore in the blast furnace, Sponge iron process uses a rotary kiln for the reduction of high grade .
sponge iron dri rotary kiln The introduction of Rotary kiln: a, Rotary kiln is the main equipment for sintering cement clinker. b, The rotary kilns produced by our company can be divided into dry process and wet process. Compared to been raised 35% up, production has been increased 510% and heat consumption has been reduced 15% down.