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Ghasemi, A.R., Hasankhoei, A.R., Razi, E., Parsapour, Gh.A., Banisi, S.. (1397). Increasing drying efficiency by modifying the design of feed chute of the Gol-e-Gohar pelletizing plant ball mill. , 10(1), 213-221. doi: 10.22044/jme.2018.7447.1599
A.R. Ghasemi; A.R. Hasankhoei; E. Razi; Gh.A. Parsapour; S. Banisi. "Increasing drying efficiency by modifying the design of feed chute of the Gol-e-Gohar pelletizing plant ball mill". , 10, 1, 1397, 213-221. doi: 10.22044/jme.2018.7447.1599
Ghasemi, A.R., Hasankhoei, A.R., Razi, E., Parsapour, Gh.A., Banisi, S.. (1397). 'Increasing drying efficiency by modifying the design of feed chute of the Gol-e-Gohar pelletizing plant ball mill', , 10(1), pp. 213-221. doi: 10.22044/jme.2018.7447.1599
Ghasemi, A.R., Hasankhoei, A.R., Razi, E., Parsapour, Gh.A., Banisi, S.. Increasing drying efficiency by modifying the design of feed chute of the Gol-e-Gohar pelletizing plant ball mill. , 1397; 10(1): 213-221. doi: 10.22044/jme.2018.7447.1599

Increasing drying efficiency by modifying the design of feed chute of the Gol-e-Gohar pelletizing plant ball mill

Journal of Mining and Environment
مقاله 15، دوره 10، شماره 1، فروردین 2019، صفحه 213-221    اصل مقاله (6.06 M)
نوع مقاله: Case Study
شناسه دیجیتال (DOI): 10.22044/jme.2018.7447.1599
نویسندگان
A.R. Ghasemi1؛ A.R. Hasankhoei1؛ E. Razi2؛ Gh.A. Parsapour3؛ S. Banisi* 1
1Mining Engineering Department, Shahid Bahonar University of Kerman, Kerman, Iran
2Kashigar Mineral Processing Research Center, Shahid Bahonar University of Kerman, Kerman, Iran
3Mineral Processing Group, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
چکیده
Pelletizing plant of the Gol-E-Gohar mining and industrial company consists of a burner, a dry ball mill (6.2 m × 13 m), and an air separator. The ball mill consists of a 2 m-long drying and an 11 m-long grinding chambers. The iron ore concentrate is fed to the drying chamber by a feed chute. It was found that when the feed moisture content increased from 1.3% to 3.5%, the throughput decreased by 12% (35 t/h) indicating a low performance of the dryer. Monitoring the wear rate of flights for a period of 12 months showed that the first 0.8 m (59%) length of the dryer length did not experience any wear. To overcome this problem, various feed chute designs with different geometries were simulated by the KMPCDEM© software. With the aim of arriving at a proper material trajectory, where the total length of the dryer is used, a new feed chute was selected. The simulation results indicated that if the height of the feed chute is increased from 1.60 to 2.26 m and the slope is increased from 45 to 48 degrees the material arrives at the first 0.48 m of the drying chamber. In this manner, the unused part of the drying chamber decreases from 59% to 36% of the length. After installation of the new feed chute during a period of three months, the throughput increased by 36 t/h.
کلیدواژه‌ها
Pelletizing Plant؛ Dryer؛ Feed Chute؛ Falling Location؛ KMPCDEM©
آمار
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