OPTIMIZING THE CHARACTERISTICS OF THE MOTION OF STEEL BALLS AND THEIR IMPACT ON SHELL LINERS IN SAG MILLS

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EBRAHIMINEZHAD RAFSANJANI S.; FOULADI MAHANI M.

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Journal Paper

Paper Information

Journal: IRANIAN JOURNAL OF MECHANICAL ENGINEERING (ENGLISH) Year:2009 | Volume:10 | Issue:1 (12) Page(s): 5-22

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Title

OPTIMIZING THE CHARACTERISTICS OF THE MOTION OF STEEL BALLS AND THEIR IMPACT ON SHELL LINERS IN SAG MILLS

Author(s)

EBRAHIMINEZHAD RAFSANJANI S. | FOULADI MAHANI M. | Issue Writer Certificate

Keywords

COMMINUTION

SEMI-AUTOGENOUS GRINDING MILL (SAG MILL)

LINER

IMPACT

HERTZ CONTACT LAW

Abstract

The equations governing the motion of steel balls and their IMPACT onto shell LINERs in industrial Semi-Autogenous Grinding (SAG) mills are derived in full details by the authors and are used in order to determine the effective design variables for optimizing the working conditions of the mill and to avoid severe IMPACTs which lead to the breakage of SAG mill shell LINERs. These design variables are the lifter height H, the working coefficient of friction m, lifter face inclination angle j, steel ball size rB, mill rotational velocity w, and mill size R. In order to optimize the operating conditions and avoid severe IMPACTs to its shell LINERs, the effect of these parameters need to be studied. The effect of lifter height (H) and the coefficient of friction (m) on some of the main IMPACT characteristics are simultaneously investigated for a SAG mill in Sarcheshmeh Copper Complex. It was shown that as the lifter height or the coefficient of friction increases, the IMPACT position tends to move upward, but the maximum IMPACT force and the absolute value of the maximum principal stress decreases, reducing the IMPACT severity.

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APA: Copy

EBRAHIMINEZHAD RAFSANJANI, S., & FOULADI MAHANI, M.. (2009). OPTIMIZING THE CHARACTERISTICS OF THE MOTION OF STEEL BALLS AND THEIR IMPACT ON SHELL LINERS IN SAG MILLS. JOURNAL OF MECHANICAL ENGINEERING (ISME) (IRANIAN JOURNAL OF MECHANICAL ENGINEERING-ENGLISH), 10(1 (12)), 5-22. SID. https://sid.ir/paper/551460/en

Vancouver: Copy

EBRAHIMINEZHAD RAFSANJANI S., FOULADI MAHANI M.. OPTIMIZING THE CHARACTERISTICS OF THE MOTION OF STEEL BALLS AND THEIR IMPACT ON SHELL LINERS IN SAG MILLS. JOURNAL OF MECHANICAL ENGINEERING (ISME) (IRANIAN JOURNAL OF MECHANICAL ENGINEERING-ENGLISH)[Internet]. 2009;10(1 (12)):5-22. Available from: https://sid.ir/paper/551460/en

IEEE: Copy

S. EBRAHIMINEZHAD RAFSANJANI, and M. FOULADI MAHANI, “OPTIMIZING THE CHARACTERISTICS OF THE MOTION OF STEEL BALLS AND THEIR IMPACT ON SHELL LINERS IN SAG MILLS,” JOURNAL OF MECHANICAL ENGINEERING (ISME) (IRANIAN JOURNAL OF MECHANICAL ENGINEERING-ENGLISH), vol. 10, no. 1 (12), pp. 5–22, 2009, [Online]. Available: https://sid.ir/paper/551460/en

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