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近几年来,邯邢局围绕推广击震细筛,各选厂普遍进行了不同程度的技术改造,有效地提高了精矿品位和金属回收率。全局精矿品位由一九七七年的60.95％提高到一九八二年的67.11％;选矿金属回收率由一九七七年的79.18％提高到一九八二年的86.50％,取得了较好的经济效果。 1、矿石性质,邯邢局各选厂所处理的矿石均为接触交代矽卡岩型磁铁矿石。主要有价成份为铁、伴生元素主要为硫、钴。矿石矿物组成比较简单,金属矿物以磁铁矿为主,其次黄铁矿,少量的褐铁矿及假像与半假像赤铁矿;脉石矿物主要是透辉石、蛇纹石、方解石、柘榴子石等。矿石中各种矿物嵌布粒度一般来讲脉石矿
In recent years, Handan Xing Bureau around the promotion of shock fine sieve, the various plants generally carried out different degrees of technological innovation, effectively improve the concentrate grade and metal recovery. The global concentrate grade increased from 60.95% in 1977 to 67.11% in 1982; the recovery rate of beneficiation metals increased from 79.18% in 1977 to 86.50% in 1982, and achieved Better economic results. 1, the nature of ore, Handan Xing Bureau of the selected plants are dealing with the ore contact account skarn type magnetite. The main valuable component of iron, associated elements mainly sulfur, cobalt. Ore mineral composition is relatively simple, the main mineral metal magnetite, followed by pyrite, a small amount of limonite and artifacts and semi-artificial hematite; gangue minerals are mainly diopside, serpentine, calcite , Garnet and so on. Minerals in various minerals embedded grain size Generally speaking, gangue ore