Cleaner Production Technology for EAF Steelmaking

EAF Steel Making Cleaning technology includes improving the cleanliness of steel and reducing the load of external environment. It is to absorb the social waste iron and steel materials, recycle the production technology, do not consume non-renewable resources, use the cleanest energy - electricity, the development of electric arc furnace steelmaking itself is to develop cleaner production. In addition, the clean development of EAF steelmaking technology is as follows.　

⒈ Clean steel production.

• ① Increase the proportion of pure iron sources in raw materials (such as direct reduction iron and hot metal);
• ② In hypoxic smelting, Wr0 of molten steel is controlled to be less than 450 *10;
• ③ Slag upgrading;　 
• ④ Clean steel refining process;
• ⑤  Molten steel protection pouring;
• ⑥  Electromagnetic braking and large inclusion control technology.　　

⒉ Reducing environmental load.

• ① Clean energy is used in electric arc furnace steelmaking;　
• ② Desilication process is adopted to reduce slag volume;
• ③ Promoting gas recovery technology;
• ④ Development of scrap preheating technology for electric arc furnace;
• ⑤ Return and utilization technology of refining slag steelmaking;
• ⑥ Dust recovery and treatment technology.