Mining of Mineral Deposits

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Investigation of vibrating jaw crusher experimental variables

Jamil Haddad1, Fadi Alfaqs1, Tareq Al-quraan1, Ibrahim I. Ikhries1

1Al-Balqa Applied University, Amman, Jordan


Min. miner. depos. 2023, 17(3):49-55


https://doi.org/10.33271/mining17.03.049

Full text (PDF)


      ABSTRACT

      Purpose. Current research focuses on studying experimentally various parameters affecting the particle size produced in a vibrating jaw crusher developed and implemented at Al-Balqa Applied University. The main purpose is to find the optimal conditions at which the jaw crusher under study works.

      Methods. The jaw crusher angle and rotating mass type are considered to study all particle sizes and reduction ratios obtained for three different motor operation speeds: 1500, 2000, and 2500 rpm. Coarse aggregate weighing 900 g with 26 mm particle size is fed into the jaw crusher, which produces several particle sizes (19, 12.5, 9.5, 4.75, and less than 4.75 mm). Furthermore, the mass of the particles is measured and the particle size reduction is calculated.

      Findings. It has been found that the jaw crusher angle, rotating mass type, and the motor operation speed play an important role in both reducing the amount of mass and reducing the size of each particle produced. In addition, it has been determined that operation at a speed of 2000 rpm provides a significant change in both mass and size reduction of each particle size considered.

      Originality. The originality of this research lies in its experimental investigation of the effects of various parameters on particle size reduction in a vibrating jaw crusher, as well as in the introduction of a new design that uses one motor to drive two plates operating at different speeds and in opposite directions.

      Practical implications. The findings can be used to optimize the design and operation of jaw crushers in various industries, including metallurgical, quarry, and mining industries, where these crushers are widely used. The results of this study can also serve as a basis for future research on particle size reduction in other types of crushers and milling equipment.

      Keywords: jaw crusher, crushing, vibration, milling, material


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