Sponge Iron Making Process Rotary Kiln Pdf

Operation of coal-based sponge iron rotary kiln to reduce accretion formation and optimize quality and power generation conference paper pdf available 183 june 2019 with 1,761 reads how we ...

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

Building materials equipment indore rotary kiln. nov 12 2012 sponge iron making is a process in which iron ore lumps for a rotary kiln coal based sponge iron manufacturing process to be successful it is absolutely 8122424015 9788122424010 advances rotary kiln sponge iron plant role of coal in rotary kiln sponge iron making process 6 quantity of ...

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 non-coking coal as a reluctant the iron ore is charged from one end with non-coking coal which is in the lump form or pellets and heated from

Rotary kiln process of making sponge iron c. 2017-10-11 183 the coal based rotary kiln process of making sponge iron is the focus of the present write up. although many different processes and chapter 2 process concepts have been emerging in this area, there were rapid births and deaths of these processes and process concepts in the

Accretion control in sponge iron production kiln using fuzzy. 2 kiln based sponge iron production process rotary kilns are found in many processes that involve processing of solids this study focuses on sponge iron kiln based process the chemical process involved in making sponge iron removes oxygen.

Due to high porosity, the resulting iron is called sponge iron. it is used as a raw material for manufacturing steel simulation of rotary kiln used in sponge iron process rotary kiln is cylindrical in shape and is 80m long having 4.2m internal diameter.

Process making sponge iron rotary kiln - c-eu.eu. some of the sponge iron rotary kilns are still under manual and open loop control with . get price and support online complete process of sponge iron kilns. a thesis submitted for partial fulfillment of the degree . have been able to complete my . 3.3 schematic of optimised rotary kiln sponge.

Nov 09, 2014nbsp018332sponge 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

China rotary kiln process of making sponge iron. rotary kiln cement rotary kiln and sponge iron rotary 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 for cement pet coke calcination sponge iron and other materials it uses hot gases for the operation get price china iso.

Rotary kiln sponge iron plant pdf keilhofer gmbh. rotary kiln sponge iron plant pdf simulation of rotary kiln used in sponge iron process using ann iacsit international journal of engineering and technology vol6 no2 april 2014 doi 107763ijet2014v6673 95 abstractin the present study estimation of actual output parameters is carried out for a ...

The basis of the direct reduction process is that solid sponge iron is produced by removing oxygen from the ore in a shaft furnace, rotary kiln furnace or fluidised bed. sponge iron can be produced in the form of direct reduced iron dri, hot briquetted iron hbi and cold briquetted iron cbi also low reduced iron lri, which is pre ...

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.

Consequently, they were replaced by the high production rate indirect process, and the development of modern dr process did not begin until the middle of 19th century. perhaps the very first patent in u.k. for sponge iron making was in 1792 presumably using a rotary kiln. more than 100 dr processes have been invented and operated since 1920.

Sponge iron production in rotary kiln in world minig. sponge iron composition amp 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

Rotary kiln - cement rotary kiln and sponge iron rotary 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 for cement, pet coke calcination, sponge iron and other materials, it uses hot gases for the operation. get price

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 ...

2 kiln based sponge iron production process rotary kilns are found in many processes that involve processing of solids 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.

Jul 14, 2014nbsp018332most of the plants in india use dri processa 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

Rotary kiln process ppt. ppt for rotary kiln process of making sponge . 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

Sponge iron iron rotary kiln sponge prior art date 1946-09-30 legal status the legal status is an assumption and is not a legal conclusion. google has not performed a legal analysis and makes no representation as to the accuracy of the status listed. expired - lifetime application number us700181a inventor john p riott original assignee john ...

Tunnel kiln electrotherm engineering technologies. these pellets are then used for making sponge iron rotary kilns have a drawback upon the size and quality of iron ore that can be used initially when the process was first introduced the ore with an iron content 65 was preferred and the preferred size of

The process of sponge iron making aims to remove the oxygen from iron ore. the quality of sponge iron is primarily ascertained by the percentage of metallization removal of oxygen, which is the ratio of metallic iron to the total iron present in the product. ... for the direct reduction of iron ore the main furnace used is rotary kiln. the ...

Rotary kiln process of making sponge iron new age mainly produced from ore by two different routes a by reducing gases co and h2 in a shaft furnace, and b through direct treatment with coal in a rotary kiln...

The process proposed to be adopted is the rotary kiln proposes using non-coking coal and iron ore. iron are undergoes the following reduction reaction in all the processes fe2o3 2 co 2 fe 3 co2 as shown in above reactions, carbon monoxide is reducing gases. these reducing gases can be obtained by controlled combustion

10 advances in rotary kiln sponge iron plant a typical process scheme for making sponge iron in a rotary kiln is presented in fig. 2.1. while fig. 2.1 shows only the key steps, a more detailed scheme, as it would appear for a typical operating plant, is presented in fig. 2.2. 2.3 sponge iron pilot plant of rdcis sail

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.

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 amp material flow in rotary kiln 27 4.5 filling of bed geometry 28

Sponge iron production in rotary kiln pdf iron production in rotary kiln the cooler is also inclined at largest improvements would be made by design modifiions adopting a novel energy conservation scenario by process integration and thereby decreasing the coal and water consumption and by decreasing the cold fresh air

Discussion is restricted to the rotary kiln process only. normally, the rotary kiln is 60125 m long l a n d 46 m in diameter d , and the l d ratio is about 1520.