• Title/Summary/Keyword: 크러셔

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Transfer Force and Contribution Analysis of Cone Crusher (콘 크러셔의 전달 하중 및 기여도 분석)

  • Kim, Dae Ji;Chung, Jintai;Lee, Ho Yeon;Lee, Chang Sun;Song, Chang Heon
    • Journal of Drive and Control
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    • v.19 no.4
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    • pp.77-84
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    • 2022
  • The aims of this study was to estimate transfer force delivered to cone crusher housing and contribution of force transmission. The rock crushing condition caused vibrations in the cone crusher housing, which were experimentally measured, and frequency response functions (FRF) were also found through modal impact tests. Vibration data and frequency response functions were applied to the transfer path analysis (TPA) model. Next, transfer forces delivered to the cone crusher housing were quantified via the TPA method. Contribution of force transfer was also analyzed based on force estimation results. Finally, this study describes basic concepts and components of the TPA method and reviews its applicability to rotating machinery that experiences impact vibrations and forces.

Application of Aggregate Recycled in-situ for Anti-frost Layer and Lean Concrete Base Course (저노현장파쇄 순환골재의 동상방지층 및 빈배합콘크리트기층 정용성평가)

  • Kim Jin-cheol;Shim Jae-won;Cho Kyou-sung
    • Resources Recycling
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    • v.14 no.4 s.66
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    • pp.10-16
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    • 2005
  • In order to recycle the waste concrete from which the reproductive aggregate should be produced in-situ, the applicability of crushers and recycled aggregates, and the compliance with the specification have been evaluated comprehensively. As a result of them, the properties of recycled aggregate particles were inferior to the natural one because of the adherent mortars on the recycled one, and the mobile impact crusher and the eccentric-mounted cone and jaw were superior to the others for the graded aggregates. In the case of anti-frost layer, the recycled one was easily controlled since the dry densities, contrary to natural one, were not largely changed with the moisture contents. It was found that the lean concrete base course is not influenced by absorption as cement dust grows larger, and the 7-day compressive strengths of lean concrete were higher than 10 MPa regardless of the crushing type.

A Comparative Study on the Quality of Recycled Aggregate for Concrete by Crushing Method (파쇄 방법에 따른 콘크리트용 순환골재의 품질 비교 연구)

  • Choi, Won-Young;Lee, Sae-Hyun;Kim, Seoung-Hwan
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.5 no.2
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    • pp.121-129
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    • 2017
  • In this study, the quality of recycled aggregate for concrete was investigated as the number of recycled aggregate crushing cycles, grinder and crusher, peeling and crushing. First, the quality of density, absorption ratio and solid content was improved as the separation distance decreased and the number of crushing increased, depending on the number of crushing of recycled aggregate and the distance between mantle and cone cave. The quality of density, absorption ratio and solid content was improved as the wire mesh used in striking plate and the number of hammers increased, depending on the type of striking plate and the number of hammers.