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Design of Air Table Equipment for the Separation of Metal Minerals by Gravity Concentration with Wind Media

Received: 23 April 2022    Accepted: 14 May 2022    Published: 24 May 2022
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Abstract

This research is an air table device design and laboratory scale experimentation. Air table is a tool to separate valuable minerals from mineral impurities of tin ore based on differences in specific gravity, shape and size using air/wind media. The design of the tool starts from the design and manufacture of the table as well as the manufacture of other main components, including; feed hopper, ventilation and tertoron cloth. Then the next stage is the calculation and selection of a table driving motor in the form of an electric motor with a pulley system and the last is the calculation and selection of a blower machine as a machine that functions to blow pressure into the table. The installation of the air table was carried out at the Materials Processing Laboratory, Faculty of Engineering, Sriwijaya University. To determine the success rate of designing and evaluating the performance of the air table, experiments were carried out using several combinations of variables, including table slope, feed weight (grams), and processing time (minutes).). The experimental process of the tool was tested using tin ore samples from the remaining tin ore washing (SHP) from the Toboali Washing Plant, PT Timah, Tbk. The experimental results show that the performance of the tool shows good but not optimal performance where the lowest concentrate gain is achieved at 50.20% and the highest is 79.14% at a deck slope of 5.8°, feed weight is 600 grams and processing time is 15 minutes. The results of the evaluation show that the air table device functions relatively well, but needs to be improved and adjusted for more varied variables as well as representative samples and quantities of tin ore, so as to produce maximum concentrate and grade.

Published in International Journal of Mineral Processing and Extractive Metallurgy (Volume 7, Issue 2)
DOI 10.11648/j.ijmpem.20220702.12
Page(s) 43-49
Creative Commons

This is an Open Access article, distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium or format, provided the original work is properly cited.

Copyright

Copyright © The Author(s), 2022. Published by Science Publishing Group

Keywords

Air Table, Deck, Head Motion, Blower Machine

References
[1] Early, AH. (2018). Technical Studyof Air Tables to Increase Low Grade Cassiterite Mineral Levels at Pemali Tin Ore Processing Center (PPBT) PTTimah, Tbk. Bangka Regency, Bangka Belitung Islands Province. Thesis, Faculty of Engineering: Sriwijaya University.
[2] Kelly, E. G. & Spottiswood, D. J. 1982. Introduction To Mineral Processing. John Wiley & Sons Inc: New.
[3] Wills, B. A. 2005. Mineral Processing Technology an introduction to the practicle aspects of ore and mineral recovery 7th edition. Canada: Butterworth Heineman.
[4] Gaudin, A., 1939. Principles of Mineral Dressing. London: McGraw Hill Book Company, Inc. New York.
[5] Burt, R. O. 1984. Gravity Concentration Technology. New York: Elsevier.
[6] Chatterjee, A. 1998. Role of Particle Size in Mineral Processiing at Tata Steel. India: Elsevier Jamshedpur.
[7] Nur, M., Pulungan, L., & Guntoro, D. (2017). Setting the Feed Rate, Hopper and Splitter Measuring Hose on the Air Table to Obtain Cassiterite with 70% (Sn) Content at Pemali Tin Ore Processing Center PT Timah, Tbk. Proceedings of Mining Engineering 2017, Bandung: Faculty of Engineering.
[8] PT Timah, Tbk. 2014, Air Table Equipment. Pemali: Education and Training Center PT Timah, Tbk.
[9] PT Timah, Tbk. (2014)., Competency Module for Air Table Equipment / Wind Tables in PPBT. Pemali: Education and Training Center PT Timah, Tbk.
[10] Taggart. 1967. Handbook of Mineral Dressing. Orland Industrial Mineral Willey Handbook Series.
[11] Sitepu, SS, Taufik, A., Hartini, I. 2016. Study of the Effect of Strong Currents on Induced Roll Magnetic Separator (IRMS) to Increase Ilmenite Mineral (FeTiO3) Recovery at Amang Plant, Mineral Processing Sector (BPM), Metallurgical Unit, PT. Timah (Persero), Tbk. Palembang: Sriwijaya University eJournal. Vol. 1 No. 1.
[12] A. Yolanda, Taufik Arief and Yunita (2018). Slope Effect Air Table of Contents and Recovery Cassiterite, PT TimahTbk Journal of Mining Vol. 3 No. 3 Month year 2018, ISSN 2549-1008.
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  • APA Style

    Taufik Arief, Hasjim Machmud, Eva Oktinasari. (2022). Design of Air Table Equipment for the Separation of Metal Minerals by Gravity Concentration with Wind Media. International Journal of Mineral Processing and Extractive Metallurgy, 7(2), 43-49. https://doi.org/10.11648/j.ijmpem.20220702.12

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    ACS Style

    Taufik Arief; Hasjim Machmud; Eva Oktinasari. Design of Air Table Equipment for the Separation of Metal Minerals by Gravity Concentration with Wind Media. Int. J. Miner. Process. Extr. Metall. 2022, 7(2), 43-49. doi: 10.11648/j.ijmpem.20220702.12

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    AMA Style

    Taufik Arief, Hasjim Machmud, Eva Oktinasari. Design of Air Table Equipment for the Separation of Metal Minerals by Gravity Concentration with Wind Media. Int J Miner Process Extr Metall. 2022;7(2):43-49. doi: 10.11648/j.ijmpem.20220702.12

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  • @article{10.11648/j.ijmpem.20220702.12,
      author = {Taufik Arief and Hasjim Machmud and Eva Oktinasari},
      title = {Design of Air Table Equipment for the Separation of Metal Minerals by Gravity Concentration with Wind Media},
      journal = {International Journal of Mineral Processing and Extractive Metallurgy},
      volume = {7},
      number = {2},
      pages = {43-49},
      doi = {10.11648/j.ijmpem.20220702.12},
      url = {https://doi.org/10.11648/j.ijmpem.20220702.12},
      eprint = {https://article.sciencepublishinggroup.com/pdf/10.11648.j.ijmpem.20220702.12},
      abstract = {This research is an air table device design and laboratory scale experimentation. Air table is a tool to separate valuable minerals from mineral impurities of tin ore based on differences in specific gravity, shape and size using air/wind media. The design of the tool starts from the design and manufacture of the table as well as the manufacture of other main components, including; feed hopper, ventilation and tertoron cloth. Then the next stage is the calculation and selection of a table driving motor in the form of an electric motor with a pulley system and the last is the calculation and selection of a blower machine as a machine that functions to blow pressure into the table. The installation of the air table was carried out at the Materials Processing Laboratory, Faculty of Engineering, Sriwijaya University. To determine the success rate of designing and evaluating the performance of the air table, experiments were carried out using several combinations of variables, including table slope, feed weight (grams), and processing time (minutes).). The experimental process of the tool was tested using tin ore samples from the remaining tin ore washing (SHP) from the Toboali Washing Plant, PT Timah, Tbk. The experimental results show that the performance of the tool shows good but not optimal performance where the lowest concentrate gain is achieved at 50.20% and the highest is 79.14% at a deck slope of 5.8°, feed weight is 600 grams and processing time is 15 minutes. The results of the evaluation show that the air table device functions relatively well, but needs to be improved and adjusted for more varied variables as well as representative samples and quantities of tin ore, so as to produce maximum concentrate and grade.},
     year = {2022}
    }
    

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  • TY  - JOUR
    T1  - Design of Air Table Equipment for the Separation of Metal Minerals by Gravity Concentration with Wind Media
    AU  - Taufik Arief
    AU  - Hasjim Machmud
    AU  - Eva Oktinasari
    Y1  - 2022/05/24
    PY  - 2022
    N1  - https://doi.org/10.11648/j.ijmpem.20220702.12
    DO  - 10.11648/j.ijmpem.20220702.12
    T2  - International Journal of Mineral Processing and Extractive Metallurgy
    JF  - International Journal of Mineral Processing and Extractive Metallurgy
    JO  - International Journal of Mineral Processing and Extractive Metallurgy
    SP  - 43
    EP  - 49
    PB  - Science Publishing Group
    SN  - 2575-1859
    UR  - https://doi.org/10.11648/j.ijmpem.20220702.12
    AB  - This research is an air table device design and laboratory scale experimentation. Air table is a tool to separate valuable minerals from mineral impurities of tin ore based on differences in specific gravity, shape and size using air/wind media. The design of the tool starts from the design and manufacture of the table as well as the manufacture of other main components, including; feed hopper, ventilation and tertoron cloth. Then the next stage is the calculation and selection of a table driving motor in the form of an electric motor with a pulley system and the last is the calculation and selection of a blower machine as a machine that functions to blow pressure into the table. The installation of the air table was carried out at the Materials Processing Laboratory, Faculty of Engineering, Sriwijaya University. To determine the success rate of designing and evaluating the performance of the air table, experiments were carried out using several combinations of variables, including table slope, feed weight (grams), and processing time (minutes).). The experimental process of the tool was tested using tin ore samples from the remaining tin ore washing (SHP) from the Toboali Washing Plant, PT Timah, Tbk. The experimental results show that the performance of the tool shows good but not optimal performance where the lowest concentrate gain is achieved at 50.20% and the highest is 79.14% at a deck slope of 5.8°, feed weight is 600 grams and processing time is 15 minutes. The results of the evaluation show that the air table device functions relatively well, but needs to be improved and adjusted for more varied variables as well as representative samples and quantities of tin ore, so as to produce maximum concentrate and grade.
    VL  - 7
    IS  - 2
    ER  - 

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Author Information
  • Department of Mining Engineering, Faculty of Engineering, Sriwijaya University, Palembang, Indonesia

  • Department of Mining Engineering, Faculty of Engineering, Sriwijaya University, Palembang, Indonesia

  • Department of Mining Engineering, Faculty of Engineering, Sriwijaya University, Palembang, Indonesia

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