发布时间 : 2024/6/3 20:49:14 星期一 文章学士学位论文—-铁矿选矿 - 图文更新完毕开始阅读0fe193a55122aaea998fcc22bcd126fff7055d9a

摘要

本次设计以张家洼铁矿选矿厂现场资料为依托，在满足设计任务书的基本要求下，以节能降耗、提高回收率的原则进行设计。为达到生产目的选择了最佳的辅助设施及生产设备，此外本次设计在选矿厂建设成本和之后的运营成本上也做到了最大化的节约。本设计的工作内容是：选厂工艺流程的选择及计算、矿浆流程的计算、设备的选型、绘制图形等。其中，通过现场考察确定磨矿分级过程采用自磨和闭路球磨。磁选定采用二段磁选，再磨后弱磁强磁联合，最大限度选出剩余铁矿。相对于铁，铜的经济价值较高，因此浮选流程采用一粗一精二扫来用以提高铜回收率，增加选厂收益。张家洼周边地形平坦，厂房布置采用平地布置，磁选、重选存在一定高度差，矿浆自流，节约输送成本。 关键词：设计，流程，计算

Abstract

This design is based on the zhangs' depression iron ore dressing plant site data, as well as meet the basic requirements to design to the principle of saving energy and reducing consumption, improve the recovery rate.In order to achieve production, chose the best auxiliary facilities and production equipment, in addition the design on the construction cost and operation cost of concentrator did to maximize savings.This design content is: mill plant process selection, calculation, pulp flow calculation, equipment selection, drawing, etc.Among them, grinding classification process by reference to the decision to adopt autogenous grinding and a closed circuit ball mill. Two section of magnetic separation, magnetic separation on the then weak magnetic strong magnetic joint after grinding, to select the maximum residual iron ore. Relative to the iron, the economic value of copper is higher, so the flotation process using one thick one fine two sweep to improve copper recovery rate, increase mill plant yield. Changs depression around the flat terrain, building layout using the ground is decorated, have a certain height difference, magnetic separation, gravity separation pulp gravity, save transportation costs. Keywords: design, process, calculate

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目录

Abstract ...........................................................................................- 1 - 目录 ................................................................................................- 2 - 第一章 前序 ..............................................................................- 9 -

1.1新建选厂的意义 ....................................................................... - 9 - 1.2设计任务书 ............................................................................. - 10 -

1.2.1设计目的 ................................................................................. - 10 - 1.2.2设计题目 ................................................................................. - 10 - 1.2.3设计内容 ................................................................................. - 10 - 1.2.4主要技术指标和参数 ............................................................. - 11 -

第二章 鲁中冶金矿山公司的概况 ....................................... - 12 -

2.1厂区交通、气候特点 ............................................................. - 12 - 2.2厂区状况及矿石性质 ............................................................. - 13 -

2.2.1小官庄矿体： ......................................................................... - 13 - 2.2.2张家洼矿体： ......................................................................... - 15 - 2.2.3港里矿体： ............................................................................. - 17 -

2.3选矿试验 ................................................................................. - 17 -

2.3.1原矿分析： ............................................................................. - 18 - 2.3.2选矿试验结果 ......................................................................... - 19 - 2.3.3选矿试验报告推荐意见 ......................................................... - 19 -

2.4厂区供电供水 ......................................................................... - 19 -

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2.4.1厂区供电 ................................................................................. - 19 - 2.4.2厂区供水 ................................................................................. - 21 -

第三章 方案设计及方案论证 ............................................... - 22 -

3.1设计方案 ................................................................................. - 22 - 3.2方案论证 ................................................................................. - 23 -

第四章 干式磁预选流程计算和设备的选择 ....................... - 26 -

4.1干式磁预选流程的选择和计算 ............................................. - 26 -

4.1.1计算干式磁预选工序小时处理量 ......................................... - 27 - 4.1.2计算干式磁预选工序各产物的产率 ..................................... - 27 - 4.1.3计算干式磁预选工序各产物的品位 ..................................... - 28 - 4.1.4计算干式磁预选工序各产物的回收率 ................................. - 28 -

4.2干式磁预选设备的选择与计算 ............................................. - 29 -

4.2.1干式预磁磁选机的选择与计算 ............................................. - 29 -

第五章 磨矿流程计算和磨矿设备的选择 ........................... - 30 -

5.1磨矿流程的选择和计算 ......................................................... - 30 -

5.1.1计算磨矿工序小时处理量 ..................................................... - 30 - 5.1.2计算磨矿工序各产物的产率 ................................................. - 31 - 5.1.3计算磨矿工序各产物的回收率 ............................................. - 31 - 5.1.4计算磨矿工序各产物的品位 ................................................. - 32 -

5.2磨矿设备的选择和计算 ......................................................... - 32 -

5.2.1自磨机的选择与计算 ............................................................. - 32 - 5.2.2球磨机的选择与计算 ............................................................. - 34 -

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5.2.3分级设备的选择与计算 ......................................................... - 36 -

第六章 磁选流程计算和磁选设备的选择 ........................... - 39 -

6.1磁选流程的选择和计算 ......................................................... - 39 -

6.1.1计算磁选工序小时处理量 ..................................................... - 39 - 6.1.2计算磁选工序各产物的产率 ................................................. - 39 - 6.1.3计算磁选工序各产物的回收率 ............................................. - 40 - 6.1.4计算磁选工序各产物的品位 ................................................. - 40 -

6.2磁选设备的选择和计算 ......................................................... - 40 -

6.2.1磁选设备的选择与计算 ......................................................... - 40 -

第七章 再磨流程计算和再磨设备的选择 ........................... - 42 -

7.1再磨流程的选择和计算 ......................................................... - 42 -

7.1.1计算再磨工序小时处理量 ..................................................... - 42 - 7.1.2计算再磨工序各产物的产率 ................................................. - 43 - 7.1.3计算再磨工序各产物的回收率 ............................................. - 43 - 7.1.4计算再磨工序各产物的品位 ................................................. - 43 -

7.2再磨设备的选择和计算 ......................................................... - 44 -

7.2.1筛分设备的选择与计算 ......................................................... - 44 - 7.2.2再磨设备的选择与计算 ......................................................... - 45 -

第八章 Ⅱ磁选流程计算和设备的选择 ................................ - 47 -

8.1Ⅱ磁选流程的选择和计算 ...................................................... - 47 -

8.1.1计算Ⅱ磁选工序小时处理量 ................................................. - 47 - 8.1.2计算Ⅱ磁选工序各产物的产率 ........................................... - 48 -

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