Inhibiting the Accretion in the Coal-Fired Rotary Kiln of High-Silica Iron Ore Pellets Application by Reducing Fines Generation and Liquid Phase Formation. Li-ming Ma Zhang Huiqing Jiang Qiu-ye Cai Yaozu Wang Zheng-jian Liu
kiln due to the erratic nature of the reduction process dynamics. This paper suggests the control of accretion formation in rotary kiln by increasing the fusion temperature of the …
Sponge iron is the final product of coal fired rotary kilns. The schematic diagram in Fig. 1 describes the unit processes ... This is because enhanced accretion formation leads to premature ...
The quality of sponge iron produced in the coal-fired rotary kilns at TATA Steel Long Products Limited (TSLPL) is permitted to vary in a small window of 80-83% Fe. ... accretion control model ...
of the kiln for several days. Accretion build up or ring formation in the kiln is normally caused by the deposition of low melting complex compounds on the refractory wall of the rotary kiln which gradually increases in thickness and takes shape of a circular ring. This narrows the kiln diameter which ends up hindering material
This study focuses on sampling and analyzing deposit formation at various points along the longitudinal axis of a 40-m-long, high-silica, pellet coal-fired rotary kiln. …
For quality prediction and control purposes, the One Step Ahead Adaptive Control and Prediction Algorithm (OSAA) and Grey (1,1) prediction algorithm have been …
and minimization of accretion formation inside the rotary kiln, thereby facilitates longevity of kiln life expectancy. 2. Rotary kiln operation The inclined rotary kiln acts as the back-bone of the sponge iron production process. Its efficiency has a paramount effect on the quality of the output product.
The rotary kiln is used in many solid processes, including drying, incineration, heating, cooling, humidification, calcination and reduction. This widespread application can be attributed to factors such as the ability to handle varied loads, with large variations in particle size [1].The rotary kiln is a slightly inclined steel cylinder that rests …
However the performance of rotary kilns is usually adversely affected by the formation of accretion. This accumulation of sintered solid particles which form rings along the length of the kiln hinders material flow, lowers productivity and life span of the kiln. ... — The Rotary Kiln forms the heart of the cement manufacturing plant where ...
The discharge end of the Rotary Kiln is provided with a burner, ... Accretion formation in Sponge Iron kiln is attribut able to the formation of low melting eutectic in. Silica ...
This paper suggests the control of accretion formation in rotary kiln by increasing the fusion temperature of the complex compound which …
DOI: 10.1007/s11837-024-06616-0 Corpus ID: 270107499; Inhibiting the Accretion in the Coal-Fired Rotary Kiln of High-Silica Iron Ore Pellets Application by Reducing Fines Generation and Liquid Phase Formation
Sponge iron is the final product of coal fired rotary kilns. The schematic diagram in Fig. 1 describes the unit processes involved in a sponge iron a production plant [1]. ... But this is counterproductive for coal consumption per ton of sponge and also for accretion formation. Low melting point materials are formed at high temperature during ...
The temperature profiles of the gas and charge in a coal-fired rotary sponge iron kiln affect both the iron ore reduction process and accretion formation.
Then, the general accretion formation and rotary kiln process parameters is outlined. Furthermore, the design of the proposed FLC design is presented. Finally, the designed model simulation results were be reported. Other advanced control strategies including fuzzy control [9], intelligent control [10] and predictive control have been ...
The temperature profiles of the gas and charge in a coal-fired rotary sponge iron kiln affect both the iron ore reduction process and accretion formation.
Inhibiting the Accretion in the Coal-Fired Rotary Kiln of High-Silica Iron Ore Pellets Application by Reducing Fines Generation and Liquid Phase Formation ... The ring formation in rotary kiln is a complicated process,which obstructs the development of grate-kiln production.In the experiment of ring formation in the acid pellet gas heated ...
Accretion formation in a rotary kiln of 100 tpd DRI plant has been investigated. The nature of accretion formation with respect to the charge burden and operational parameter have been discussed. High ash content in the coal and excess …
metallization level and estimation of accretion formation inside the rotary kiln, thereby facilitates longevity of kiln life expectancy. Plant data from an operational industrial …
Improving the rotary kiln-electric furnace process for ferronickel production: Data analytics-based assessment of dust insufflation into the rotary kiln flame ... This phenomenon is known as accretion or ring formation. Ring formation can also be due to the presence of carbon-containing fines at high temperatures (1200–1400 …
Accretion formation in a rotary kiln of 100 tpd DRI plant has been investigated. The nature of accretion formation with respect to the charge burden and operational parameter have been discussed.
long time that the formation of ring-shaped accretion on the inside wall of the kiln cannot be avoided by any possibility, which causes serious trouble in the kiln operation. This is attributed to the liquid formation within the solid, which is an inevitably occurring phenomenon. A similar phenome-non has been reported in the cement kiln.3)
For example, sudden changes in LE are caused when accretions inside the kiln get dislodged. The technology of predicting and controlling accretion formation is explained in detail in [1][2] [3] [4 ...
The fines and ash content of coal enhance the accretion formation and must be regulated within a certain window for the process to be steady (for prediction purposes as well). ... and MLR multiple-based models along with dynamic pressure control is demonstrated for quality and accretion control in rotary kiln on shop floor. Quality is ...
In coal-based DRI process, accretion formation inside the rotary kiln is a genuine complex problem. Accretion formation in a rotary kiln of 100 tpd DRI plant has been investigated. The nature of accretion formation with respect to the charge burden and operational parameter have been discussed. High ash content in the coal and excess …
S. Mondal, Operation of Coal-Based Sponge Iron Rotary Kiln to Reduce Accretion Formation and Optimize Quality and Power Generation, 2012, pp. 727–732. ... A study on the accretion formation in DRI kilns and possible ways for its reduction. IOSR J. Mech. Civil Eng., 12 (2015), pp. 98-103. CrossRef Google Scholar [7]
Request PDF | A Case Study on Accretion Formation in Rotary Kiln of DRI Process A Case Study on Accretion Formation in Rotary Kiln of DRI Process | Your article is protected by copyright and all ...
PDF | On Jan 1, 2019, S. Borah and others published Operation of Coal-Based Sponge Iron Rotary Kiln to Reduce Accretion Formation and Optimize Quality and Power Generation | Find, read and cite ...
The discharge end of the Rotary Kiln is provided with a burner, which is used for start up and / or ... Accretion formation in Sponge Iron kiln is attributable to the formation of low melting ...
پست الکترونیک: [email protected]
نشانی: شماره 1688، جاده شرقی گاوک، منطقه جدید پودونگ، شانگهای، چین.
کپی رایت © 2024.cryptod تمامی حقوق محفوظ است.نقشه سایت