文档介绍：英文原文:
New Advance in Dressing Process for Lean Hema tite in An shan D istr ict
reverse flotation
Abstract Based on the introduction of the technological p rocesses and indexes of the three large lean hematite con2 centrators in Anshan District, the characters and p roblems in the p rocess of the three concentrators are analyzed. It consid2 ers that use of the high intensity ic separator and the medium intensity ic separator for scavenging stabilizes the p rocess and increases separation efficiency. The gravity separation of coarse ores is favorable for sufficient recovery of i2 ron mineral. The anionic reverse flotation ensures qualified concentrate grade. essful app lication of the p rocess for the lean hematite in Anshan District p rovides a new way to dress the lean hematite in our country.
Keywords Lean hematite, High intensity ic separation, Medium intensity field; Gravity separation, Anionic
In recent years, due to surge in demand for steel products, iron ore resources has e more important, China's iron ore resources are very rich, but difficult to choose the large proportion of poor hematite. Anshan Iron and Steel is an important iron and steel industrial base, with ongoing large-scale industrial mining, poor hematite ore production will account for more than 50% of total production. Anshan Anshan pany is the main supply base of iron ore, iron ore production was mainly fine-grained hematite poor cloth embedded
Anshan area in recent years for the three poor hematite mineral processing plant, which Qidashan concentrator, Diaojuntai Concentrator, Donganshan sintering plant beneficiation tests carried out research, which align the mountains concentrator and sintering plant were Donganshan large-scale transformation to make the new process implemented poor hematite. Qidashan concentrator using grinding stage election re-election - ic separation - anti-flotation process, Diaojuntai concentrator with continuous grinding, weak ic - ic - anti-flotation process,