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what is kiln in dri in sponge iron plant

coal based direct reduction rotary kiln process ispatguru

coal based direct reduction rotary kiln process ispatguru

Feb 14, 2017 · These plants use iron ore pellets in the rotary kiln. Raw material mix consisting of iron ore, dolomite and non-coking coal is fed at the one end of the rotary kiln and is heated by coal burners to produce DRI. The product DRI along with char (sometimes called dolo …

coal & gas based dri plant - rotary kiln for making sponge

coal & gas based dri plant - rotary kiln for making sponge

We manufacture Sponge Iron Plant on turn-key basis of different functional capacities i.e. 100 TPD, 300 TPD, 500 TPD plants.The equipment support provided for the plants include Kiln/cooler tyre, Kiln/cooler support roller, Kiln/cooler support roller shaft, Kiln/cooler support roller assembly with bearing housing, Kiln/cooler girth gear, Kiln/cooler pinions, Kiln/cooler pinion shaft, Kiln

industrial training report on direct reduced iron plant(dri)

industrial training report on direct reduced iron plant(dri)

Jul 16, 2017 · Figure-DRI PLANT SPONGE IRON – Sponge- iron is a metallic product which is produced by reaction of iron oxide and carbon mono oxide with the presence of essential temperature. This is a direct reduction process where carbon mono oxide is acting as reducing agent and the iron ore reduced in solid state as such it is also known as direct

direct reduced iron and its production processes ispatguru

direct reduced iron and its production processes ispatguru

Mar 16, 2013 · DR process, DRI, HBI, Iron making. Metallization, reformed natural gas, residual elements, Rotary kiln, Direct Reduced Iron and its Production Processes. Direct reduced iron (DRI) is the product which is produced by the direct reduction of iron ore or other iron bearing materials in the solid state by using non-coking coal or natural gas

sponge iron - an overview | sciencedirect topics

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 800–1200 °C. Iron oxide is charged into shaft furnace, rotary kiln, or fluidized beds in the form of pellet, iron ore …

sponge-iron - shakambhari group

sponge-iron - shakambhari group

In the Direct Reduced Iron (DRI) plant, production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material such as coal. The reduction is carried out in a rotary kiln (which is inclined and rotates at a pre-determined range of speeds) at a stipulated temperature (850°C -1,500°C)

pollution in the sponge iron industry

pollution in the sponge iron industry

Jul 31, 2013 · DRI ProcessRaw materials, partly coal, iron ore, fluxes enter the rotary kiln Rotary kiln= 2.5% Slopeand 0.47 rpm speed Preheating zone or combustion zone where coal is heated Solid iron and unburnt char, lime is discharged The remainder coal in powdered form and hot air is charged Flue gas After Burn Chamber Cooler discharge and product separator 10

sponge iron process

sponge iron process

Jul 29, 2010 · A demonstration sponge iron plant of 30000tpa capacity was set up with liberal assistance from UNIDO, Govt.of India and LURGI. ... In general sized iron ore of 5-18mm is used in the process of manufacture of sponge iron on all types of rotary kiln with +16mm not exceeding 15-20%.The mean particle size of iron ore shall be restricted to 11mm in

(pdf) operation of coal-based sponge iron rotary kiln to

(pdf) operation of coal-based sponge iron rotary kiln to

Sponge iron is a type of iron produced by coal based or gas-based reduction of iron ore. It is difficult to measure and control the degree of reduction or quality of the iron ore at intermediate

energy audit methodology of sponge iron manufacturing

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

energy survey of the coal based sponge iron industry

energy survey of the coal based sponge iron industry

Sep 01, 2015 · 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

process description and flow diagram of coal based dri plant

process description and flow diagram of coal based dri plant

Aug 07, 2016 · Raw material mix-iron ore, 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 reaction processes

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