中国资源综合利用
中國資源綜閤利用
중국자원종합이용
CHINA RESOURCES COMPREHENSIVE UTILIZATION
2013年
8期
39-41
,共3页
铁矿石%磁选%工艺改进
鐵礦石%磁選%工藝改進
철광석%자선%공예개진
iron ore%magneti separation%process improving
为了提高梅山铁矿预选工艺中细粒级矿石选别效果，分析现有弱磁粗选-扫选工艺的生产技术指标，找出问题所在，即：给矿中大颗粒多、洗矿效果差、选别次数不足。针对存在的问题提出了增加一段强磁选、无孔筛板改为有孔筛板、提高洗矿效果等措施。改进后，铁回收率显著提高，铁精矿产出量年增加45000 t。
為瞭提高梅山鐵礦預選工藝中細粒級礦石選彆效果，分析現有弱磁粗選-掃選工藝的生產技術指標，找齣問題所在，即：給礦中大顆粒多、洗礦效果差、選彆次數不足。針對存在的問題提齣瞭增加一段彊磁選、無孔篩闆改為有孔篩闆、提高洗礦效果等措施。改進後，鐵迴收率顯著提高，鐵精礦產齣量年增加45000 t。
위료제고매산철광예선공예중세립급광석선별효과，분석현유약자조선-소선공예적생산기술지표，조출문제소재，즉：급광중대과립다、세광효과차、선별차수불족。침대존재적문제제출료증가일단강자선、무공사판개위유공사판、제고세광효과등조시。개진후，철회수솔현저제고，철정광산출량년증가45000 t。
In order to improve the beneficiation effect of small granularity iron ore in the pre-concentraion technique at Meishan, the production status of low intensity magnetic separation roughing-scavenging process has been analyzed, and some shortages, such as the extensive big particles, the bad beneficiation and the insufficient grading time, have been pointed out. Based on the analysis, some measures for improving the process have been put forward including adding one stage of strong intensity magnetic separation and employing screen board with aperture to replace that no aperture. When all the proposals mentioned above are carried out, 45 000 tons iron concentrate have been recovered per year.
