1、设计年处理量为 1050 万吨的 选矿厂 摘要 本设计为本科生毕业设计， 是针对鞍山式铁矿石的初步设计， 设计年处理量为 1050 万吨的 选矿厂，设计阶段为初步设计。设计以齐大山选矿厂的矿石特性、选矿试验研 究结果、可行性研究报告及处理同类矿石选矿厂生产实践等为依据。设计主要内容包括 说明书和图纸两大部分。说明书部分主要包括工艺流程的确定与计算，主要设备的选择 等。设计的生产工艺为三段一闭路破碎，阶段磨矿、粗细分级、重选-磁选-阴离子反浮 选流程。说明书对所设计工艺流程进行了合理性论证，在设备选择方面，对主要设备破 碎机、球磨机进行了详细的方案对比，对辅助设备作了初步的选择。本设计的技术经济
2、 指标为：原矿品位 29.22%，精矿品位 67.28%，尾矿品位 10.74%，金属回收率 75.26%。 所选用设备的工艺技术上先进，经济上合理，生产上可靠，具有较高的技术经济指标。 图纸部分主要绘制了中细碎车间、主厂房、选别车间的平断面和设备形象联系图及数质 量矿浆流程图。 关键词：鞍山式铁矿；阶段磨选；粗细分级；重选-磁选-阴离子反浮选工艺 Abstract The design for the Graduation Project is the type of Anshan iron ore for the preliminary design, design capacity to
3、 handle 10.5 million tons in the concentrator, designed for the preliminary design stage. Design Qidashan Concentrator ore characteristics, processing test results, the feasibility study report and deal with the same production practices such as ore dressing plant based. Some instructions include th
4、e identification and calculation process, major equipment selection. Design production process for the three sections of a closed-circuit crushing, grinding stage, thickness grading, re-election - magnetic separation - anion reverse flotation process. Manual pair designed a reasonable process for Demonstration, in equipment selection, major equipment, crusher, ball mill Comparing the plans in detail, of auxiliary equipment, made an initial choice. Ore grade of 29.22%, concentrate grade
