Analisis Pengaruh Diameter Large Bell terhadap Distribusi Burden Material dan Profil Tekanan di dalam Mini Blast Furnace Kapasitas 250 Ton/Hari dengan Menggunakan DEM-CFD Coupled Model

Dewanto, Habiyoso Rafli (2018) Analisis Pengaruh Diameter Large Bell terhadap Distribusi Burden Material dan Profil Tekanan di dalam Mini Blast Furnace Kapasitas 250 Ton/Hari dengan Menggunakan DEM-CFD Coupled Model. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Indonesia memiliki cadangan sumber daya mineral yang potensial, khususnya untuk mineral nikel laterit. Pengolahan lebih lanjut diperlukan untuk meningkatkan nilai ekonomis bijih. Salah satu pengolahan nikel yang dikembangkan ITS adalah Mini Blast Furnace dengan tipe double bell charging system. Dengan mengoptimalkan charging system akan diperoleh peningkatan efisiensi dan stabilitas proses reduksi. Penelitian ini bertujuan untuk menganalisis pengaruh ukuran diameter large bell terhadap distribusi burden material dan profil tekanan di dalam MBF. Variabel yang dianalisis berupa perbandingan diameter large bell:throat sebesar 3:10; 5:10 dan 7:10. Setelah dilakukan simulasi dan pengolahan data, perbedaan diameter large bell menghasilkan distribusi burden material yang berbeda yang berdampak pada perbedaan kontur tekanan pula. Partikel dengan densitas kecil (batubara) cenderung terdorong ke zona central MBF, sementara ore dan dolomit cenderung di posisi zona intermediate dan peripheral. Hasil penelitian menunjukkan variabel 5:10 memiliki hasil distribusi yang lebih baik dan profil tekanan yang lebih stabil serta potensi central working furnace paling besar. ============== Indonesia has a potential mineral resource, especially for nickel laterite mineral. Further mineral processing is required to increase the economic value of the nickel ore. One of the method that has been developed by ITS is Mini Blast Furnace with double bell type of charging system. By optimizing the charging system, the efficiency and reduction process stability will increase. This research is purposed to analyze the influence of large bell diameter on burden materials distribution and pressure profile in MBF. There are three variables in form of large bell diameter compared to throat diameter used, 3:10; 5:10; and 7:10. After simulation and data analysis, the difference on large bell diameter resulted on difference burden materials distribution, which will affect the pressure profile. Particle with lower density (Coal) tends to pushed to central zone, when the other particle with higher density such as ore and dolomite tend to stay on intermediate and peripheral zone. The conclusion shown that variable 5:10 has better burden materials distribution and more stable pressure profile, and also high potential of central working furnace.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: Mini Blast Furnace; Diameter Large Bell; Distribusi Burden Material; Profil Tekanan; Mini Blast Furnace; Large Bell Diameter; Burden Materials Distribution; Pressure Profile
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA347 Finite Element Method
T Technology > TN Mining engineering. Metallurgy > TN677 Blast furnaces.
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > (S1) Undergraduate Theses
Depositing User: Habiyoso Rafli
Date Deposited: 06 Feb 2018 04:56
Last Modified: 06 Feb 2018 04:56
URI: http://repository.its.ac.id/id/eprint/49280

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