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  1. دگرگشت مفهوم فضای هندسی در قرن نوزدهم
آزمایش، مدل‌ سازی و شبیه‌ سازی فرایند اختلاط ذرات آهن اسفنجی و بایندر
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آزمایش، مدل‌ سازی و شبیه‌ سازی فرایند اختلاط ذرات آهن اسفنجی و بایندر

قادری زفره، علی Ghaderi Zefreh, Ali

Experimental and Simulation Study of The Mixing Process of Sponge Iron Particles and Binder

Ghaderi Zefreh, Ali | 2022

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 55786 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Molaei Dehkordi, Asghar
  7. Abstract:
  8. Regarding the popularity and progression of iron production with direct reduced method in the world, one of the most common methods of quality maintaining of DRI (Direct Reduced Iron) in transporting and make it globally accessible and used, is to convert it to the briquette form. To increase the quality of briquettes and reduce the use of binder, should make sure that the binder and DRI particles with different sizes are totally mixed together and to prevent segregation of particles with different sizes as much as possible while the binder is spread among the whole particles. Therefore, using the static mixer can be the first choice due to its low production, operational, and maintenance costs. In this research work, two common types of commercial static mixers named KSM and LPD and a combination of them with different lengths of 4 and 6 stages and with continuous and discontinuous feed policy were simulated and tested. It was found that the maximum capacity of KSM is 56% in batch mode and 105% in the continuous mode larger than those of LPD. Moreover, it also provides 30% better mixing quality compared to LPD in the case of four-stage KSM. Therefore, the choice of KSM offers better mixing quality in the least number of mixing steps in addition to larger mass flow rate capacity
  9. Keywords:
  10. Sponge Iron ; Discrete Element Method ; Briquetting ; Solids Mixing and Segregation ; Static Mixer ; Sponge Iron Briquetting ; Simulation ; Experimental Investigation

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