Accortling to the characteristics of concentrate, the authors analyse the reasons why the iron grade of roasted magnetic separation concentrate is not high.
从精矿性质特点着手，分析了酒钢选厂焙烧磁选精矿铁品位不高的原因和主要影响因素。
In this paper, the necessity of increasing and optimizing the grade of iron concentrate is set forward, and the possible technique way and research thinking are also introduced.
本文从宏观角度出发阐述了提高和优化铁精矿品位指标的必要性、可能的技术途径及优化研究的思路。
Drum separator cannot produce high-grade iron concentrate because it cannot remove the locked particles and gangue in the agglomeration formed in the process of magnetic separation.
永磁筒式磁选机由于无法将磁团聚中夹杂的连生体和单体脉石有效地剔除，所以很难获得高品位精矿；
The prospect and the application state of high grade iron concentrate are described.
介绍了高品位铁精矿用于生产海绵铁和粉末冶金的现状及前景展望。
From the macroscopic point of view, the necessity of improving and optimizing the iron concentrate grade index, the potential technical ways and the thought on optimization study are described.
从宏观角度出发，阐述了提高和优化铁精矿品位指标的必要性、技术途径及优化研究的思路。
The means of producing high grade iron concentrate using imported fine screening technology at JSC "SSGPO" Iron Mine are described.
介绍了JSC“SSGPO”铁矿引进细粒筛分技术生产高品位铁精矿的手段。
This new process is an effective means for the iron increase and silica decrease of concentrators and for realizing the improvement of iron concentrate grade, being worth further spreading.
该新工艺是选矿厂提铁降硅及实现提高铁精矿品位的有效手段，可进一步大力推广应用。
At present, the grade of Miaogou iron concentrate was only 64.26% with high content of silicon.
庙沟铁矿目前最终铁精矿品位只有64.26%，精矿中含硅较高。
Through technical reform, No. 3 Concentration Workshop of Dagushan Concentrator has effectively raised the grade of iron concentrate to over 65% so as to achieve good results.
介绍了大孤山选矿厂三选车间通过技术改造，有效地将铁精矿品位提高到6 5 %以上，取得了较好的效果。
The results showed that, an iron concentrate with a TFe grade of 65.50% and a recovery of 83.09% can be obtained by the closed-circuit bench test.
结果表明，采用选择性絮凝脱泥-阳离子反浮选流程闭路试验可获得铁精矿品位为65.50%，回收率为83.09%的较好指标。
The analysis ascribed the increase of iron concentrate grade by airflow to the air-flow agitation and the negative pressure or strong disturbance as gas bubbles broke down.
分析认为，气流能提高铁精矿品位归功于气流的搅拌作用和气泡破碎时形成的负压及强扰动。
After magnetic separation of the classifier's overflow, the iron recovery is 2 18% higher than that obtained by conventional process, while the iron concentrate grade remains nearly constant.
新型螺旋分级机溢流产品经磁选后，在铁精矿品位相近的情况下，铁回收率比传统工艺提高218个百分点。
The tests showed that an iron concentrate having a 65% iron grade could be obtained, but it had a rather high content of sulfur that should be reduced by some additional treatment.
试验表明：采用磁选柱选别可得到6 5 %以上的铁精矿。但精矿中硫含量偏高，需要进行降硫处理。
The tests showed that an iron concentrate having a 65% iron grade could be obtained, but it had a rather high content of sulfur that should be reduced by some additional treatment.
试验表明：采用磁选柱选别可得到6 5 %以上的铁精矿。但精矿中硫含量偏高，需要进行降硫处理。
应用推荐