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

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GHASEMI A.R.; Hasankhoei A.R.; RAZI E.; Parsapour Gh.A.; BANISI S.

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Journal: JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES) Year:2019 | Volume:10 | Issue:1 Page(s): 213-221

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Title

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

Author(s)

Keywords

Pelletizing PlantQ1

DryerQ1

Feed ChuteQ1

Falling LocationQ1

KMPCDEM©Q1

Abstract

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.

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APA: Copy

GHASEMI, A.R., Hasankhoei, A.R., RAZI, E., Parsapour, Gh.A., & BANISI, S.. (2019). Increasing drying efficiency by modifying the design of feed chute of the Gol-e-Gohar pelletizing plant ball mill. JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES), 10(1 ), 213-221. SID. https://sid.ir/paper/256337/en

Vancouver: Copy

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. JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES)[Internet]. 2019;10(1 ):213-221. Available from: https://sid.ir/paper/256337/en

IEEE: Copy

A.R. GHASEMI, A.R. Hasankhoei, E. RAZI, Gh.A. Parsapour, and S. BANISI, “Increasing drying efficiency by modifying the design of feed chute of the Gol-e-Gohar pelletizing plant ball mill,” JOURNAL OF MINING AND ENVIRONMENTAL (INTERNATIONAL JOURNAL OF MINING & ENVIRONMENTAL ISSUES), vol. 10, no. 1 , pp. 213–221, 2019, [Online]. Available: https://sid.ir/paper/256337/en

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