Sponge iron rotary kiln

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 non-coking coal [patra et al, (2005)].

sponge iron being magnetic gets attracted and gets separated from non- magnetic char. the iron ore and coal crushed and screened to respective sizes are fed to rotary kiln through feed tube in pre-determined ratio. the rotary kiln is slightly inclined at an angle 2.5 deg and rotated by

alibaba.com offers 1,161 sponge iron rotary kiln products. about 27% of these are cement making machinery, 2% are other mining machines. a wide variety of sponge iron rotary kiln options are available to you, such as warranty of core components, condition, and key selling points.

sep 10, 2020 sponge iron rotary kiln is professional equipment for smelting sponge iron. due to its high degree of mechanization and low labor intensity, many sponge iron plants around the world use the rotary kiln process to produce sponge iron.

sponge iron. 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 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 ...

sponge iron kiln’s cylinder: the design of the sponge iron rotary kiln cylinder is more reasonable. the cylinder is rolled with a q235-b 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.

rotary kiln—solid reductant processes 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 …

sponge iron rotary kiln, lime rotary kiln, cement rotary kiln manufacturer / supplier in china, offering sponge iron rotary kiln&rotary kiln process of making sponge iron, primary crushing and autogenous copper ball mill & overflow ball mill, 72-5000 tpd output bauxite rotary kiln for wide used dolomite, kaolin, bauxite, refractory, cement, limestone and so on.

rotary kiln (1050 c) kiln air at 30 c flue gas fly ash fines of iron ore at 900 oc kiln feeding iron ore: feed coal: dolomite all at 30 c rotary cooler sponge iron (magnetic) at 110 oc water: at 30 oc dsc 900 c 1020 c dust: abc air: whrb waste gas water: esp dust wet scraper waste gas dusty gas chimney steam water: at 34.5 oc fe (mag)=4.166 tph ...

some of the sponge iron rotary kilns are still under manual and open loop control with human operator observing the burning status of the different zones of the kiln. as a result, it is difficult to maintain consistent product quality and energy consumption is high. in addition, the kiln liner wears out rapidly and the kiln production rate

feb 14, 2017 boudouard reaction, dolomite, dri, iron ore, metallization, non coking coal, pellets, reduction, rotary kiln, sponge iron, sulphur, coal based direct reduction rotary kiln process . the coal based direct reduction rotary kiln process was developed for converting iron ore directly into metallic iron without the melting of the materials.

sponge iron calcination rotary kiln production line activated carbon rotary kiln, find details about rotary kiln, cement kiln from sponge iron calcination rotary kiln production line activated carbon rotary kiln - zhengzhou zhongjia heavy industry co., ltd.

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

borah et al., “quality prediction and control in coal-fired rotary sponge-iron kilns at tata sponge”, un published work (paper to ap pear in proceedings of the curre nt a istech 2019). 8.

rotary kiln with sl/rn process. coal based rotary kiln for direct reduced iron / sponge iron (100 tpd, 350 tpd, and 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). since dri is produced by removing oxygen from ...

jun 01, 2016 in the sponge iron industry rotary kiln is the primary equipment, which is used to reduce iron ore to metallic iron i.e. fe. though sponge iron is a hard solid material, it is called sponge iron due to its honeycomb structure. rotary kiln is also widely used in cement industry.

sponge iron manufacturer/supplier, china sponge iron manufacturer & factory list, find qualified chinese sponge iron manufacturers, suppliers, factories, exporters & wholesalers quickly on made-in …

rotary 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 gases. 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 ...

modeling of rotary kiln for sponge iron processing using cfd package (ansys 13.0) a thesis submitted for partial fulfillment of the degree award of master of technology in chemical engineering under the supervision of

rotary kiln furnace for sponge iron calcination application of rotary kiln: 1) rotary kiln is the thermal equipment, heating materials, in cement industry for calcining clinker. 2) it is also used in various industries, such as cement, nonferrous metallurgy, ferrous metallurgy, chemistry, building, refractory material, environmental protection ...

sponge iron. 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 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 ...

in the present study, estimation of optimum input parameters corresponding to desired output parameters is carried out for a typical sponge iron process. for this purpose data of rotary kiln of the process are collected. it includes temperatures profiles inside the rotary kiln and flow rates of air, iron ore, feed coal, slinger coal and sponge ...

ii. 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

kiln iron air rotary kiln sponge iron prior art date 1952-09-26 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 us311593a inventor wienert fritz otto original assignee

8. sponge iron rotary kiln head hood: including stationary type and flexible type. working principle sponge iron rotary kiln sponge iron rotary kiln is a cylindrical vessel, inclined slightly to the horizontal, which is rotated slowly around its axis. sponge iron rotary kiln to be processed is fed into the upper end of the cylinder.

sep 01, 2018 the sponge iron plant are free to explore other options/ possibilities to use char for generation of power. char can be sold to local entrepreneurs for making coal briquettes. it can also be mixed with coal fines, converted to briquettes and used in brick kilns.

2. ed, sima requested the participants to volunteer to spare their rotary kiln for carrying out the r&d 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

dri rotary kiln, sponge iron rotary kiln, hematite rotary kiln price manufacturer / supplier in china, offering energy-saving sponge iron rotary kiln low hematite rotary kiln price dri rotary kiln for sale, 2.5*60m sponge iron rotary kiln, easy operation 0.4-20 tph log electrical wood chipper machine and so on.

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 and secondary airs are supplied to the kiln to initiate the combustion and reaction processes. the reaction takes place at …

sponge iron rotary kiln, lime rotary kiln, cement rotary kiln manufacturer / supplier in china, offering sponge iron rotary kiln&rotary kiln process of making sponge iron, primary crushing and autogenous copper ball mill & overflow ball mill, 72-5000 tpd output bauxite rotary kiln for wide used dolomite, kaolin, bauxite, refractory, cement, limestone and so on.

sponge iron calcination rotary kiln production line activated carbon rotary kiln, find details about rotary kiln, cement kiln from sponge iron calcination rotary kiln production line activated carbon rotary kiln - zhengzhou zhongjia heavy industry co., ltd.

some of the sponge iron rotary kilns are still under manual and open loop control with human operator observing the burning status of the different zones of the kiln. as a result, it is difficult to maintain consistent product quality and energy consumption is high. in addition, the kiln liner wears out rapidly and the kiln production rate