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</div> <!-- D start --> <!-- 正文 --> <div class="mainbody"> <div style="display:none"> 选柱技术回与展望 赵通林 辽宁U技大学 矿业工程学院 2 018.8 汇报目录 Contents of Report 选柱? 选柱分选过E? 选柱性能优化研究 选柱l构 选柱规格参数 选柱技术展? 1.选柱? 上操作台参考位 切线l水? 支撑位置 底部中心l水? 执行? 传感? DN50夹阀 执行器 1.选柱? ? 1990q_辽宁U技大学Q原鞍山钢铁学院Q刘U裕教授带领的磁 选设备研I课题组Q提出电励的重选矿机概念,q开始磁 选柱的研发? ? ? ? ? 1992q_实验室小型样机成功。直?0mmQ?l线圈,直流? 电,采用机械摩擦片切换方式,产生周期变换的磁场? 1994q_弓长岭岭东选矿厂试用,开启工业应用之路。直? 2 00mm选柱Q手工制作,塑料壳体? 1999q_直径600mmȝU维壳体选柱Q弓长岭应用16台? 丹东控配套甉|与自控? 2002qvQ直?00mm不锈钢体Q全自动控制选柱在本钢? 通钢、包钢及全国大中?0多家选矿厂得以推q应用?002q至 2 004q三q篏U销?60多台? ? ? 2005q_全国掀L选柱热,多家公司q军选柱市场Q开始磁 选柱应用的激烈竞争阶Dc从此磁选柱应用遍地开花,北京Q河 北、抚,鞍山Q沈阳等多家公司都得以迅速发展? 2008q~至今Q改型换代磁选柱Q新型专利不断涌现? 1.选柱? 【磁选柱——一U高效精选设备? 既能充分分散团聚,又能充分利用团聚,늣式低q场磁重选矿讑֤? 技术优势: 1 2 3 Q精选效果突出,选别指标先进Q? Q适应性强Q粗选,羃均有应用Q? Q自动控制技术成熟? 南芬“提铁降”工E中选柱应用 歪头山改造工E磁选柱应用 1.选柱? 直径200mm塑料外壳试验? Q?代塑料外壛_不锈钢) 弓长?6台玻璃钢工业应用选柱 Q?代工业品) 1.选柱? ? ? ? ? ? ? ? ? ? ? 一 1.选柱? 1.选柱? 2.选柱l构 The Structure of Colum Magnetic Separator 选柱l构 2.选柱l构 The Structure of Colum Magnetic Separator 1 6 Q给矿斗Q?Q尾矿溢槽Q?3Q分选柱及电系Q?Q给水管 5Q底鼓; Q精矿排矿装|;7Q电控柜? 2.选柱l构 The Structure of Colum Magnetic Separator 选柱自控与电控箱 2.选柱l构 The Structure of Colum Magnetic Separator 2.选柱l构 The Structure of Colum Magnetic Separator 2.选柱l构 The Structure of Colum Magnetic Separator 3.选柱分选过E? 辽宁U技大学 3.选柱分选过E? 4.选柱规格与参? 规格 QmmQ? 场强度 处理? QkA/mQ?Qt/hQ? l矿_度 耗水? QmmQ?Qm3/t 装机功率 QkWQ? 外径 QmmQ? 高度 QmmQ? l? Q? φ100 φ250 φ400 φ500 φ600 φ800 ?4 ?4 ?4 ?4 ?4 ?4 ?.3 - 0.2 2 - 4 2 - 4 0.3 1.0 2.5 3.0 4.0 6.0 210 400 700 800 940 1200 900 ? ? - 0.2 - 0.2 - 0.2 - 0.2 - 0.2 2000 3000 3500 4200 4745 2 - 4 2 - 4 2 - 4 2 - 4 ?4 ?0 ?5 4.选柱规格与参? 直径600mm选柱技术参? 序号 目 单位 t/h 技术数? 12?8 ?.2 1 2 3 4 处理? l矿_度 l矿度 耗水? mm % 35?5 2? m3/tq矿 5 6 7 8 9 1 1 ȝ水管压力 外Ş寸φ×H 重量 MPa mm Kg ?.17 950×2400 1100 甉|配用电? 装机功率 V、Hz KW 交流380?0 4.0 0 1 工作电压 V 直流0?80 0? 工作甉| A 4.选柱规格与参? 选柱U圈中心场强度 直径600mm工业机磁感应强度与电关p?直径30mm试验机磁感应强度与电关p? 4.选柱规格与参? 1 、工作参敎ͼ调整因素Q: ? ? ? ? ? 分选腔中心感应强度(q甉|强度Q? 上升水流速度Q给水量Q? l矿性质Q给矉K、给矿浓度、给矿位|、分散状态) 分散水流? 排矿口(排矿速度与浓度) 2 、选别指标、运行状态与调整因素关系如下图? 5.选柱性能优化研究 5.选柱性能优化研究 电阻法温升计?Q? U圈q箋工作温升曲线 场Ҏ曲U? 5.选柱性能优化研究 Y=95.71-1.43X1-0.29X12 -3.3 U圈位置关系与回收率关系Q试验数据) 5.选柱性能优化研究 2.5 Y=95.86+0.98X2-0.15X22 U圈间距与回收率关系Q试验数据) 5.选柱性能优化研究 X1Q?2.5cm X2Q?3cm 5.选柱性能优化研究 5.选柱性能优化研究 5.选柱性能优化研究 5.选柱性能优化研究 5.选柱性能优化研究 颗粒或磁铄沉降速度? ? 得颗_或链的沉降速度方程 Ua ——上升水速度Qm/sQ? 单励线圈水q面场分布? l论 1 Q磁选柱属于低弱场重选矿讑֤。中心磁感应强度 仅ؓ10?0mTQ是普通筒式磁选机?/5。针对磁性较q 铁矿,应开发磁场强度适当增大的新型磁选柱? 2 Q其分选原理独特,利用断箋场配合上升冲洗水可? 有效地去除精矿中Ҏ的单体脉矛_中、q生体,_? 位高? 3 4 Q可调节因素多,适用与不同性质的磁铁矿选别? Q存在耗水量偏大,入选物料粒度要求较严格的不? 存在的不? 存在的不? Q? 1Q对性较q铁矉K别效果不理惟? ׃选柱的磁Z?0?0mTQ对q种矿物的磁 场力不能有效克服上升水流的冲d作用Q易D溢流? 矿跑黑,影响铁的回收率? Q? 2Q对l矿_度要求较严? 通常要求l矿_度?0.2mmQ较好的选别范围? 200目在75?0%? Q? 3Q耗水量偏大,品位偏高 一般情况下Q尾矿浓度较低,仅ؓ1?%Q处理每 吨给矉K用水2?吨。又׃选柱是用于精选作业,? 品位x品位较高,要回收溢中的磁铁矿必? q行预先羃Q这一点又会应用选柱的工艺流E复? 化? 6.选柱技术展? 늣螺旋? 脉冲振动场选柱 复合闪烁场_N机 改进型磁选柱 6.选柱技术展? 1 4 .늣铁励线?2.环Ş轭 3.固定螺栓 .늣?5.螺栓?6.分选筒 选环? 6.选柱技术展? 变径选柱 内磁pȝ选柱 6.选柱技术展? 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