EFFECTS OF GRINDING AIDS ON PARTICLE SIZE DISTRIBUTION, CONSUMPTION ENERGY, GRINDING TIME AND SELECTIVE GRINDING OF GELIRAN COAL ORE

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RAFIEI A.A.; NOUPARAST M.; REZAEI B.; KOLAHDOUZAN M.; TABATABEI A.

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Journal: AMIRKABIR Year:2003 | Volume:14 | Issue:55-C Page(s): 843-856

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Title

EFFECTS OF GRINDING AIDS ON PARTICLE SIZE DISTRIBUTION, CONSUMPTION ENERGY, GRINDING TIME AND SELECTIVE GRINDING OF GELIRAN COAL ORE

Author(s)

Keywords

GRINDING AIDSQ4

GRINDABILITYQ4

HARD GROVE INDEXQ4

BOND INDEXQ4

SELECTIVE COMMINUTIONQ4

Abstract

Coal is known as one of the most important energy sources in different industries. Coal processing has some identified steps like the other ores. One of these steps is comminution which is one of the most significant steps in mineral processing with wide applications in other engineering branches. One of the important subjects in comminution is known as application of GRINDING AIDS to optimize grinding parameters. GRINDING AIDS or chemicals provide different effects on grinding product characteristics. In this work the effect of GRINDING AIDS such as Alchohol, Terpantinic Acid, Water, Soda and RGA on particle size distribution, consumption energy and selective grinding of Geliran coal ore samples were studied Results indicated that grinding parameters like size distribution, ash percent and work indices varied with the presence of GRINDING AIDS. An optimum percent of each GRINDING AIDS was determined on the basis of laboratory tests results. Consequently Terpantinic acid as the best grinding aid in this work reduced the consumption energy and ash percent in finer particle size. Alchohol increased the ash percent of coal in finer particle size and NaOH increased consumption energy and reducing ash percent in the same time. Fresh water did not provide considerable optimization on dry grinding process and made some disadvantages. Finally RGA as an industrial cement GRINDING AIDS provided some advantages and disadvantages and the selection of the best GRINDING AIDS related .with the strategy of grinding process design.

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APA: Copy

RAFIEI, A.A., NOUPARAST, M., REZAEI, B., KOLAHDOUZAN, M., & TABATABEI, A.. (2003). EFFECTS OF GRINDING AIDS ON PARTICLE SIZE DISTRIBUTION, CONSUMPTION ENERGY, GRINDING TIME AND SELECTIVE GRINDING OF GELIRAN COAL ORE. AMIRKABIR, 14(55-C), 843-856. SID. https://sid.ir/paper/1076/en

Vancouver: Copy

RAFIEI A.A., NOUPARAST M., REZAEI B., KOLAHDOUZAN M., TABATABEI A.. EFFECTS OF GRINDING AIDS ON PARTICLE SIZE DISTRIBUTION, CONSUMPTION ENERGY, GRINDING TIME AND SELECTIVE GRINDING OF GELIRAN COAL ORE. AMIRKABIR[Internet]. 2003;14(55-C):843-856. Available from: https://sid.ir/paper/1076/en

IEEE: Copy

A.A. RAFIEI, M. NOUPARAST, B. REZAEI, M. KOLAHDOUZAN, and A. TABATABEI, “EFFECTS OF GRINDING AIDS ON PARTICLE SIZE DISTRIBUTION, CONSUMPTION ENERGY, GRINDING TIME AND SELECTIVE GRINDING OF GELIRAN COAL ORE,” AMIRKABIR, vol. 14, no. 55-C, pp. 843–856, 2003, [Online]. Available: https://sid.ir/paper/1076/en

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