Rotary kiln is cylindrical in shape and is 80m long having 4.2m 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]

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 iron ore, its structure is just like a sponge with a

Principally a rotary kiln for the reduction of iron oxides in solid state is a continuous gas/solid reactor consisting of a refractory lined sylinder rotating on its axis, which is slightly inclined to the horizontal. The raw materials fed into the charging end of the rotary kiln at a higher level gravitate slowly to the lower or discharge end due

Product Description CITICIC Lateritic Nickel Rotary Kiln technical characteristics: 1 Kiln body is made of high quality composed of carbon steel or alloy steel plate and automatic welding; 2 Tyre,Support Roller,Open gear adopts alloy cast steel; 3 Sliding bearing with large gap not scraping tile bearing; 4Transmission device adopts hard tooth surface reducer, flexible diaphragm coupling, dc motor; 5

The work was divided into two parts: first, a study of the influence of several operating parameters,viz., rotational speed, inclination of the kiln, effect of circular dams at the feed and the exit ends of the kiln,etc., and second, an investigation of the extent of segregation of a mixture of solids in a rotating kiln. The highlights of the experimental results dealing mainly with the effect of various kiln operating

the main gear are within OEM specifications and c) the root clearance of the gear set is low. Loose drive components can facilitate resonance vibration, and such conditions must therefore be corrected. The attachment of the gear to kiln has to be secure; that is, spring plate pins and gear bolts have to be tight. If a grid coupling is

The coal base DRI rotary kiln process for production of DRI / Sponge Iron has its many parameters to increase the quality as well as productivity which need careful operations throughout the process. Number of DRI processes came up and rotary kiln process with solid coal as fuel found to be most acceptable process in the world

Sep 01, 2015 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 different production rates

Feb 14, 2017 Most plants employ reduction process which is carried out in rotary kilns. These plants use wide variety of raw materials and non-coking coal. The quality of these materials has direct bearing on the process as well as the product. Some plants do not use iron ore directly. These plants use iron ore pellets in the rotary kiln

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. ... • Parameters identified to control quality are FC in ... ABOUT US- A MICRO INTEGRATED STEEL PLANT 2002-2004 3 x 50 TPD Sponge Iron (DRI) Kilns 2007-2010 2 x 23 m 3 Micro Blast Furnace

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

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 lumps, or fines. The reduction takes place using gaseous reductants (CO + H

Feb 14, 2017 Coal based direct reduction process is based on the solid reducing agent which is non-coking coal. The reaction takes place at high temp (1000 deg C to 1100 deg C). Coal plays a dual role in the kiln. Part of coal is used as fuel to supply the desired heat so as to take the raw materials to the desired temperature

China Sponge Iron Plant EPC & Sponge Iron Production Line, Find details about China Sponge Iron Production in Rotary Kiln, Sponge Iron Rotary Kiln from Sponge Iron Plant EPC & Sponge Iron Production Line - Luoyang Zhongtai Industries Co., Ltd

The ASL Sponge Iron unit at present consists of one rotary kiln of 500 TPD and the flue gas generated from the kiln is about 120,000 Nm3/hr at 950-10000C. Flue gas with high heat content is generated in the Rotary kiln in the Sponge iron plant during conversion of Iron Ore into Sponge Iron. The entire