摘要
针对车河选矿厂原矿中铁丝、铁块等杂物多、枱浮摇床及+74摇床精矿锡品位较低且铁含量高、细粒级锡石全浮选流程回收率低且药剂消耗量大、锌硫分离尾矿未得到综合利用的问题,开展了原矿除铁试验研究、枱浮摇床给矿及精矿磁选试验研究、+74摇床精矿磁选试验研究、30米脱硫浮选给矿及一次浮锡精矿磁选试验研究、锌硫分离尾矿磁选试验研究等一系列研究,并在生产中得到应用,最终磁出原矿中铁质杂物50 kg/班,减少了流程堵塞及设备磨损;枱浮摇床精矿铁含量由17.1%降至13.2%;+74摇床精矿锡品位由42.5%提高至47.1%、铁含量由23.9%降至11.6%;细粒级锡石回收率提高1.01个三分点;锌硫分离尾矿得到综合回收利用。本次研究效果显著。
As to the problems such as a plenty of iron wire and briquette in raw ore,low tin grade and high iron content in floating table and +74 table concentrate,low recovery and high consumption of agent in the full floatation circuit for fine fraction cassiterite,zinc and sulfur separation gangue is not utilized comprehensively in Che’he dressing plant,a series of researches have been conducted,covering de-ironing from raw ore,floating table feeding and concentrate magnetic separation,+74 table concentrate magnetic separation,30 m desulfurization floatation feeding and one-time floating tin concentrate magnetic separation and zinc-sulfur separation gangue magnetic separation,and being applied in the production,as a result of that,the iron stuff in raw ore is eliminated magnetically by 50 kg/shift,the flow blocking and equipment wear have been reduced;iron content in floating table concentrate reduces to 13.2 % from 17.1 %;tin grade in +74 table concentrate improves to 47.1 % from 42.5 %,iron content falls to 11.6 % from 23.9 %;the recovery of fine cassiterite has increased by 1.01 %;zinc-sulfur separation gangue has been recycled and utilized comprehensively.This research has gained significant effect.
出处
《广东化工》
CAS
2013年第13期70-71,34,共3页
Guangdong Chemical Industry
关键词
磁选
回收率
综合回收
magnetic separation
recovery
comprehensive recovery