To obtain commercial product of required quantitative and qualitative parameters, hard coal must be subjected to a number processing operations. Preliminary stone removal from run-of-mine is one them. Methods such removal, including the method selective crushing are described. Design solutions for KOMAG-type device dry presented. The results laboratory tests susceptibility steam coke presented,...

Intisari — Kelor merupakan tanaman herbal yang bermanfaat bagi kesehatan. Cara konsumsinya kebanyakan dengan diseduh setelah sebelumnya daun kelor dikeringkan dan diolah menjadi serbuk. Penelitian ini dilakukan untuk meningkatkan efektivitas crusher serbuk mengaplikasikan teknologi elektronika. Motor AC satu fasa memanfaatkan sistem kontrol Proportional Integral Derivatif (PID) memperoleh kecep...

PT. Benteng Api Technic merupakan perusahaan refraktori terkemuka di Indonesia dengan memproduksi batu bata tahan api dan semen sebagai produk utamanya. Proses produksi yang akan diamati dalam penelitian ini adalah proses bahan atau material setengah jadi PYRO, pembuatan crushing PYRO menggunakan mesin stone crusher hingga menjadi siap untuk diolah, bertujuan mengurangi kelelahan fisik desain h...

Grinding of a high volatile bituminous coal was performed in three comminution devices: Raymond Mill, Rolls Crusher and Ball Mill. The pulverised samples were sieved to obtain four particle size fractions and temperature-programmed combustion (TPC) was used for the evaluation of their combustion behaviour. In addition, three coals of different hardness and rank were mixed in various proportions...

Introduction: Subsurface investigation is one of the fundamental aspects of exterrestrial exploration. [2] Two general methods of studying the subsurface include in situ instrumentation and remote sample evaluation. This research investigates methods to crush core samples and prepare them for in remote analysis. Specifically, this research develops methods to comminute a core sample or regolith...