赤铁矿选矿设备及工艺中英文版
Topic:Main mineral processing and equipment of hematite
赤铁矿又名红矿, 其化学分子式为Fe2O3，它是一种弱磁性铁矿物，可浮性较磁铁矿好，是炼铁的主要原料之一。其主要选矿工艺有重选、浮选和强磁磁选机或是多种选矿工艺并用，也有过磁化焙烧后弱磁选的工艺。
Hematite is also called red iron ore, and its chemical formula is Fe2O3. it is a kind of feebly magnetic iron mineral, flotability of it is better than that of magnetite and it is one of main materials for iron making. Its main mineral processing contains gravity separation, flotation separation and high intensity magnetic separation or combining with several kinds of mineral process, and also contains the process of low intensity magnetic separation after over-magnetization roasting.
早期的赤铁矿选矿设备一般多采用重选工艺，主要有跳汰机、离心选矿机、螺旋溜槽、螺旋选矿机、摇床等，由于其选矿处理能力小，选矿品位低、回收率低而逐渐被淘汰。
Mineral process of hematite in the early time often adopted gravity separation, and it mainly included jig, centrifugal separator, spiral chute, spiral concentrator, shaking table and so on. Its capacity, grade and recovery rate of mineral process were low, so it was eliminated gradually.
后来赤铁矿选矿发展了浮选工艺和强磁选工艺，主要以氧化石蜡皂为捕收剂的正浮选工艺和以电磁平环强磁选机为选别设备的强磁选工艺。但是其选别技术指标均没有达到令人满意的效果。
Mineral process of hematite developed flotation separation and high intensity magnetic separation later, and it mainly inludes direct flotation separation with oxidized parafin soap as collector and high intensity magnetic separation with electromagnetic flat ring high-intensity magnetic separator as separating equipment. But its separating technical indexes do not reach the satisfactory effect.
近年来，赤铁矿的选矿设备取得了长足的发展，其主要选矿工艺是以电磁脉动高梯度磁选机为代表的强磁选选矿工艺和以系列为代表的反浮选选矿工艺。尤其是采用强磁——浮选联合流程使一些矿山的赤铁矿选别达到了铁精矿品位,铁精矿回收率的满意指标。
In recent years, mineral processing of hematite has obtained considerable development, its main mineral processing includes high intensity magnetic separation mineral processing which regards electromagnetic pulsating high gradient magnetic separator as represent and reverse flotation separation which regarding series as represent. Especially, adopting a combined flowsheet of high intensity magnetic separation ---- flotation separation makes separation of hematite in some mines reach iron concentrate grade and satisfactory index of recovery rate of iron concentrate ore.
可以说我国从“六五”开始的红矿（赤铁矿）攻关工作已基本达到了预期的目的，红矿选矿技术难题已基本解决。
It can be said that the key work on red iron ore (hematite) has reached expected goal from the “6th Five-year Plan” and has basically solved technical problem about mineral processing of red ore.
赤铁矿选矿设备及工艺中英文版由开元机械整理，转载请注明来源。
