Analisa Pengaruh Sudut Large Bell Pada Double Bell System Terhadap Distribusi Dan Deformasi Lapisan Burden Material Di Dalam Mini Blast Furnace Kapasitas 250ton/Hari Menggunakan Solid Particle Model

Syaifulah, Hamzah (2017) Analisa Pengaruh Sudut Large Bell Pada Double Bell System Terhadap Distribusi Dan Deformasi Lapisan Burden Material Di Dalam Mini Blast Furnace Kapasitas 250ton/Hari Menggunakan Solid Particle Model. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sumber daya nikel di Indonesia yang besar dan adanya peraturan Undang-Undang No. 4 tahun 2009, perlu dilakukan pengembangan teknologi pengolahan mineral nikel. Salah satu pengolahan nikel yang sedang dikembangkan ITS adalah Mini Blast Furnace. Charging system (double bell system) sangat berpengaruh terhadap distribusi burden material di dalam MBF. Dengan mengoptimalkan distribusi dan lapisan burden material, maka stabilitas dan efisiensi MBF akan meningkat. Penelitian ini difokuskan untuk menganalisis pengaruh sudut large bell terhadap distribusi burden material dan deformasi lapisan di dalam MBF menggunakan solid particle model. Setelah dianalisis, perbedaan sudut large bell menghasilkan distribusi burden material dan lapisan yang berbeda. Partikel yang memiliki densitas kecil (batubara dan dolomit) berkonsentrasi di zona center, dan partikel yang memiliki densitas besar (ore) berkonsentrasi di zona intermediate dan zona peripheral. Semakin besar sudut large bell, maka kecepatan jatuh dan energi kinetik burden material semakin besar. Lapisan paling stabil adalah sudut bell 65o. Sudut bell 65o merupakan sudut bell paling baik untuk start-up MBF kapasitas 250ton/hari karena kemungkinan terjadinya central working furnace paling besar. =============================================================================================== Nickel resources in Indonesia and the regulations of Law No. 4 year 2009, it is necessary to develop nickel mineral processing technology. One of the nickel processing that is being developed by ITS is Mini Blast Furnace(MBF).Charging system(double bell system) has an important role on the distribution of burden material in MBF. By optimizing the distribution and layers of the material burden, it will increase the stability and efficiency of the MBF. Therefore, this study focused on analyzing the effect of large bell angle on the distribution of burden material in MBF using solid particle model. Once analyzed, large bell angle differences produce different burden material distribution. For particle distribution, particles of small density (coal and dolomite) tend to be concentrated in the center zone and particles of large density (ore) tend to be concentrated in the intermediate and peripheral zone. The larger angle of the large bell will increase particle falling velocity and the kinetic energy of the burden material. The most stable layer is MBF with 65o bell angle. The MBF with 65o large bell angle is the best bell angle for MBF start-up capacity of 250ton / day, due to the greatest possibility of central working furnace.

Item Type: Thesis (Undergraduate)
Additional Information: RSMt 669.733 2 Sya a-1
Uncontrolled Keywords: Mini Blast Furnace, Charging System, Lapisan Burden Material, Distribusi Burden Material
Subjects: T Technology > TN Mining engineering. Metallurgy > TN752.I5 Steel--Heat treatment
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User: Hamzah Syaifullah .
Date Deposited: 15 Nov 2017 02:34
Last Modified: 21 Nov 2017 08:36
URI: http://repository.its.ac.id/id/eprint/43211

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