Figure 1 from Mathematical models and expert system for ...

Part II: Rotary kiln process control @article{Fan2012MathematicalMA, title={Mathematical models and expert system for grate-kiln process of iron ore oxide pellet production. Part II: Rotary kiln process control}, author={Xiao-hui Fan and Y. Wang and X. Chen}, journal={Journal of Central South University}, year={2012}, volume={19}, pages={1724 ...

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Mathematical models and expert system for grate-kiln ...

2012-6-3  Rotary kiln process for iron ore oxide pellet production is hard to detect and control. Construction of one-dimensional model of temperature field in rotary kiln was described. And the results lay a solid foundation for online control. Establishment of kiln process control expert system was presented, with maximum temperature of pellet and gas temperature at the feed end as control cores,

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An innovative process for direct reduction of cold-bound ...

Successfully developed an innovative process of direct reduction of cold-bound pellets from iron ore concentrate with a coal-based rotary kiln, in comparison with the traditional direct reduction of fired oxide pellets in coal-based rotary kilns, possesses such advantages as: shorter flowsheet, lower capital investment, greater economic profit, good quality of direct reduced iron.

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Thermogravimetric Analysis of Coal Used in Rotary Kiln of ...

Thermogravimetric analysis (TGA) has been used to research the pyrolysis and combustion processes of coal used in rotary kiln of iron ore oxide pellet. Furthermore, the effects of air flow and oxygen concentration on the combustion behavior of coal were examined with TGA. The results showed that two individual stages can be distinguished for ...

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UNICORE Resources

2017-8-31  Unicore Resources is an exporter of top quality Chrome ore from South Africa, principally to markets in the Far East. Chromite is the only ore of chromium, a metal used to induce hardness, toughness and chemical resistance in steel. The alloy produced is known as "stainless steel". When alloyed with iron

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NOx Emission Reduction by Advanced Reburning in

2020-11-16  processes Article NOx Emission Reduction by Advanced Reburning in Grate-Rotary Kiln for the Iron Ore Pelletizing Production Bing Hu 1, Peiwei Hu 2,3,*, Biao Lu 4, Zhicheng Xie 2, Liu Liu 2, Gangli Cheng 2 and Jiaoyang Wei 2 1 National Engineering Research Center of Sintering and Pelletizing Equipment System, Zhongye Changtian International Engineering Co., Ltd., Changsha 410205,

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Thermogravimetric Analysis of Coal Used in Rotary Kiln of ...

2016-2-3  Thermogravimetric analysis (TGA) has been used to research the pyrolysis and combustion processes of coal used in rotary kiln of iron ore oxide pellet.

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Damring Formation During Rotary Kiln Chromite Pre ...

2018-11-28  process option with the lowest specific electricity consumption (MWh/ton). In this process, pelletized chromite is fed into a rotary kiln at 1573 K (1300 C), where partial pre-reduction takes place. Damring formation (material build-up) in the rotary kiln causes

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Method to Quantify the Effect of Temperature and ...

2020-3-31  Decrepitation of Iron Ore Decrepitation of iron ore in blast furnaces is such an extensive field of study that a standardized method exists to characterize the ore. One such example is the ISO standard 8173. The steps followed can be summarized as follows: • The sample with a size range of −25 to +20 mm is dried in an oven at 105 °C ...

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王祎 - USTB

2021-7-2  Mathematical models and expert system for grate-kiln process of iron ore oxide pellet production (Part II): Rotary kiln process control[J]. Journal of Central South University, 2012, 19 (6): 1724-1727. 8.Xiaohui Fan, Yi Wang(通讯作者), Xu-ling Chen.

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tunnel kiln process sponge iron in south africa

rotary kiln iron ore pellet process in south africa. rotary kiln iron ore pellet process in south africa HFC Refrigerants (55) HST Hydraulic Cone CrusherHST series hydraulic cone crusher is combined with technology such as machinery, hydraulic pressure, electricity, automation, intelligent control, etc. , representing the most advanced crusher technology in

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COMPARISON OF DIFFERENT COAL BASED DIRECT

The rotary kiln processes include ACCAR/OSIL, DRC, Krupp-CODIR and SL/RN processes. ... At Dunswart plant in South Africa, ... The first requirement is a high quality iron ore or pellet with total ...

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Mathematical models and expert system for grate-kiln ...

2012-6-3  Rotary kiln process for iron ore oxide pellet production is hard to detect and control. Construction of one-dimensional model of temperature field in rotary kiln was described. And the results lay a solid foundation for online control. Establishment of kiln process control expert system was presented, with maximum temperature of pellet and gas temperature at the feed end as control cores,

Get Price

Pellet Plant Process - Baldota

Pellet Plant Process. Raw material iron ore fines are fed to Iron ore grinding system (IOGS – 160 t/h) for grinding the ore to 85% -200 mesh. We use the wet grinding process for this. The slurry produced is then fed to filter press.

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THE EFFECT OF REDUCTION TIME AND SIZE

Figure 1 South Lampung iron ore pellets, which are mixed with coconut shell charcoal and bentonite 2.2. Reduction Process and Analysis After having analyzed the sample, the South Lampung iron ore pellets were inserted into the rotary kiln (pilot scale, Figure 2) to be reduced to become sponge iron at a temperature of 1100oC. The variation in ...

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Thermogravimetric Analysis of Coal Used in Rotary Kiln of ...

2016-2-3  Thermogravimetric analysis (TGA) has been used to research the pyrolysis and combustion processes of coal used in rotary kiln of iron ore oxide pellet.

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Iron Ore Pellets Manufacturing Process By Tunnel Kiln

Iron Ore Pellets Manufacturing Process By Tunnel Kiln Germany. 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)

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Method to Quantify the Effect of Temperature and ...

2020-3-31  Decrepitation of Iron Ore Decrepitation of iron ore in blast furnaces is such an extensive field of study that a standardized method exists to characterize the ore. One such example is the ISO standard 8173. The steps followed can be summarized as follows: • The sample with a size range of −25 to +20 mm is dried in an oven at 105 °C ...

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王祎 - 北京科技大学 - 冶金与生态工程学院 - X-MOL

Mathematical models and expert system for grate-kiln process of iron ore oxide pellet production (Part I): Mathematical models of grate process [J]. Journal of Central South University, 2012, 19 (4): 1092-1097. 5.王祎, 范晓慧, 陈许玲.

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Buy Reduction Rotary Kiln Kerr Mcgee Process Rotary Kiln ...

Sep 01 2003 kerrmcgee chemical corp id v 2 o 5 the high titanium content of the ore used to produce iron in south africa requires an initial reduction with powdered coal in a rotary kiln followed by reduction to the metallic state in an electric furnace a roastleach operation involving either kilns or a multihearth furnaces process is . Live Chat

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picture of travelling grate in iron ore pellet plant

Iron Ore Pellet Kiln Burners FCT Combustion. A range of highquality, compact burners, specifically designed for iron ore sintering and pelleting plants using traveling grate kilns. Iron Ore Pellet Kiln burners can also be used in a number of other applications such

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Thermogravimetric Analysis of Coal Used in Rotary Kiln of ...

2016-2-3  Thermogravimetric analysis (TGA) has been used to research the pyrolysis and combustion processes of coal used in rotary kiln of iron ore oxide pellet.

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Temperature Field Simulation Model for Rotary Kiln of Iron ...

2013-4-1  Based on conduction, convection and radiation heat transfer among the flue gas, kiln wall, and the pellet bed material, and on the basis of the coal combustion and analysis of reaction heat of pellet induration in the rotary kiln, the temperature field model of rotary kiln was established. Using visual studio net, matlab and open source computer vision library as development tools, combining ...

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ON SOME FUNDAMENTAL ASPECTS OF OPERATIONAL

2012-1-10  'ROTARY KILN Fig. 2 Mechanism of heat transfer in a Rotary Kiln In a rotary kiln, the charge normally occu-pies a small area and a large area of refractory wall is exposed to the flame or hot gases (Fig. 1). Due to the rotation of the kiln, the heated re-fractory lining gets covered with the charge leading to substantial heat transfer by condu-

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Iron Ore Pellets Manufacturing Process By Tunnel Kiln

Iron Ore Pellets Manufacturing Process By Tunnel Kiln Germany. 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)

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Combustion Reaction of Pulverized Coal on the Deposit ...

2019-5-25  The serious deposits on the refractory bricks are found in the grate kiln in iron ore pellet plants, which significantly influence the pellet production. The effect of the combustion reaction of pulverized coal on the deposit formation in kiln during iron ore pellet production was investigated in this work. Hematite iron ore was used as raw material to be pelletized, and the pulverized coal ...

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rotary kiln and straight grate technology

pellet plant process flow chart with straight grate technology grate kiln process supplier in india . grate travelling kiln iron ore pellet plant. rotary kiln . ຸᒬᄇࣱᯪᨁ నҫˆႌᨁᨠ - Traveling Grate—Rotary Kiln—Annular Cooler Pelletizing Technology .

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王祎 - 北京科技大学 - 冶金与生态工程学院 - X-MOL

Mathematical models and expert system for grate-kiln process of iron ore oxide pellet production (Part I): Mathematical models of grate process [J]. Journal of Central South University, 2012, 19 (4): 1092-1097. 5.王祎, 范晓慧, 陈许玲.

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