International Research Journal of Innovations in Engineering and Technology - IRJIET International Open Access, Monthly, Peer Reviewed, Reputed Journal ISSN (online): 2581-3048

Impact Factor (2025): 6.9

DOI Prefix: 10.47001/IRJIET

Failure Analysis on Hammer Crusher in Clinker Cooler

Abstract

Hammer crusher is one of the main components in the clinker cooler. A hammer crusher is a tool for crushing clinker that has cooled to reduce the size of the slag. The Hammer crusher wears out which causes its service life not to match its ideal use. The purpose of this study is to determine the cause of the failure of the hammer crusher, to know the mechanism of the failure of the hammer crusher, and to find the solution for the failure of the hammer crusher. The methodology used to solve the problem is by conducting tests where the tests carried out to analyze the hammer crusher material is composition testing carried out with the OES tool, hardness testing using the Vickers method, impact testing using the Charpy method, and metallography observed under an optical microscope. Based on testing the material composition of the hammer crusher is not up to standard. Then from the hardness test, the average value is 569.8 HVN on the hammer worn part and 481.2 HVN on the part far from worn. From the impact test, the average impact energy value in the wear section is 1.917 Joules with an average impact strength of 0.023 Joule/mm2, in areas far from wear the average impact value is 1.733 Joules with an average impact strength of 0.021 Joules. /mm2. Factors that cause the failure of the hammer crusher in the clinker cooler are the incompatibility of the material composition and the low toughness value compared to the standard, then the hammer crusher failure mechanism occurs due to wear and tear caused by differences in hardness values ​​and changes in the mechanical properties of the material and to overcome the failure, namely by replace material according to ASTM A532 standard composition.

Country : Indonesia

1 Norman Iskandar2 MSK Tony Suryo Utomo3 Bambang Yunianto4 Taufiqurrohman

  1. Mechanical Engineering, Diponegoro University, Semarang, Indonesia
  2. Mechanical Engineering, Diponegoro University, Semarang, Indonesia
  3. Mechanical Engineering, Diponegoro University, Semarang, Indonesia
  4. Mechanical Engineering, Diponegoro University, Semarang, Indonesia

IRJIET, Volume 6, Issue 5, May 2022 pp. 131-138

doi.org/10.47001/IRJIET/2022.605016

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