Kaji Eksperimental Kekuatan Briker Hasil Reduksi Bijih Besi Dengan Batubara Muda Menggunakan Metode Hot Briquetted Iron (HBI)
| Main Authors: | Khairil, Khairil, Sofyan, Sarwo Edhy, Adhitya, Andre |
|---|---|
| Format: | Article info application/pdf eJournal |
| Bahasa: | eng |
| Terbitan: |
Jurnal Teknik Mesin Unsyiah
, 2020
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| Subjects: | |
| Online Access: |
http://www.jurnal.unsyiah.ac.id/JTM/article/view/18242 http://www.jurnal.unsyiah.ac.id/JTM/article/view/18242/12956 |
Daftar Isi:
- This research aims to study the mechanics (strength) properties of iron ore briquettes. Iron ore briquettes are made using the hot briquetted iron method (HBI). HBI is a briquette after reduction directly and pressed at a temperature above 650 0C and has more density than 5000 kg/m3. The specimens used were iron ore briquettes made of the composition of iron ore, coal, and adhesives. The composition of the briquettes is 55: 40: 5, 65: 30: 5, 75: 20: 5, 85:10: 5 and the reduction temperature is 7500C,8500C,9500C and 10500C. There are 16 briquett specimens. After the briquettes are made, the briquettes are reduced using a reduction blast furnance which is fuel by LPG and CO2 gas. When the mass of briquette is no longer decrease ore the time (reach steady state condition) the briquettes take out from the blast furnance for press. Pressing is carried out in hot briquettes conditions and the press load is 15 tons. The results obtained from testing the I-Type Tumbler Test have more small paricle ruptures because the briquettes have lost their adhesive during the reduction process and coal does not affect the strength of the HBI briquettes. After being reduced briquettes are given more adhesive so that briquettes can be tested again. Iron ore briquettes after reduction are stroger than those before reduction. In the variation 85:10:5 obtained from testing I-Type Tumbler Test iron ore briquettes test after reduction has a number of particle small rupture 0,21% while iron ore briquettes before reduction of 3,35%.