f 摘
要
本设计按照毕业设计任务书的要求，进行了柴山铅锌矿 2500 吨/日铅锌选矿厂初步设计，产品为铅精矿和锌精矿。
通过在湖南郴州的柴山铅锌厂进行的为期三周的毕业实习，收集相关设计资料的基础上，确定各车间的工作制度，对设计工艺流程进行了选择和论证，确定了破碎采用三段一闭路流程，磨矿采用两段两闭路流程，浮选采用优先浮工艺，精矿采用先浓缩后过滤的两段脱水的工艺流程。
对设计工艺流程进行了数质量和矿浆流程计算，对选矿厂主要工艺设备进行了选择计算和选型。设计也进行了厂房总体布置和厂房内的设备配置。根据地形条件，粗碎、中细碎、筛分厂房分厂房布置，磨矿浮选共厂房配置，其中磨矿采用纵向配置，浮选机采用横向配置。浓缩机配置在露天，过滤机与精矿仓配置在厂房内。完成了粗中细碎筛分、磨浮、脱水车间平断面图、数质量及矿浆流程图和总平面共 6 张图纸的绘制,其中包括一张手工图。
本设计还对选矿厂的建筑、供水、供电进行了规定，并进行了选矿厂的技术经济概算，经概算柴山铅锌矿 2500吨/日铅锌选矿厂基本建设投资总额为 17989.2万元，精矿销售成本为 46256.3 万元，年利润为 14991 万元，静态投资偿还期为1.24 年。
关键词 ：
柴山铅锌矿；初步设计；计算机辅助设计
f ABSTRACT
According to the request of the intruction of plant design for undergraduated, the design of chaishan Pb -Zn Mine concentrator with the capacity of 2500t/d, and the products are lead and zinc concentrate. On the basis of the practice in Chaishan Pb -Zn Mine for three weeks, and the collection of data, the work institutions of each workshop were determined, and the technological process was also chosed and reasoned. The process of crushing is three sections with an open circuit, the grinding process is two sections with closed circuit, the floation process is selective flotation of lead minerals, and a process with two sections dewatering circiut which included concentration and filtion was adopted. Technological parameters of crushing, screening, grinding, floation (include the circuit of pulp)and dewatering were computed respectively. Then the technological parameters of equipments were computed and the schemes of equipments were compared and the optimal equipments were determined.
The general arrangement of concentrator plant and the allocation of equipments in diferent workshop were presented. According to the topography of plant site, plants were arranged along the slope of mountain. The workshops of coarse crushing, middle and fine crushing and screening were aloted independent. The workshops of grinding and flotation were put together, and the longitudinal and lateral plans were used for the mills and flotation machines respectively. The concentrate machines were collocated seprarted from the filitering workshop and concentrate bins which were aloted inside six pieces of drawings ,such as the workshop of coarse.middle. fine crushing and screening , grinding , floation , dewatering and so on, were finished include a handicraft drawing.
The plant construction, the water supply, the power supply have also been carried on the stipulation in this design, and estimate the ore dressing plant technical economy budgetary. After the budgetary estimate Chaishan Pb -Zn Mine 2500 ton/day lead zinc ore dressing plant capital investment total amount was 179,892,000 Yuan, the ore concentrate selling costs is 462,563,000 Yuan, the profit for the year is 149,910,000 Yuan, the static investment repayment period is in 1.24.
Keywords: Chaishan Pb -Zn Mine;Preliminary design;Autocad
f 目
录
第一篇
工艺篇
.................................................................................. 1
第一章
概 论 ................................................................................... 2 1.1 矿区概况 .................................................................................. 2
1.2 原料及矿床 ............................................................................... 2
1.3 采矿方法及原料运输 ............................................................... 3
1.4 厂址的选择 ............................................................................... 3
第二章
矿石可选性研究 ................................................................. 5
2.1 铅锌选矿方法概述 ................................................................... 5
2.2 矿石的性质 ............................................................................... 5
2.3 流程沿革及可选性研究实验 ................................................... 6
第三章
工艺流程的选择与论证 ..................................................... 8
3.1 选矿厂各车间工作制度的确定 .............................................. 8
3.2 破碎流程的选择与论证 .......................................................... 8
3.3 磨矿流程的选择与论证 .......................................................... 9
3.4 浮选流程的选择与论证 ........................................................ 10
3.5 工艺流程的计算 .................................................................... 10
第四章
主要设备的选择与计算 ................................................... 31
4.1 破碎筛分设备的选择与计算 ................................................. 31
4.2 磨矿设备和分级设备的选择与计算 .................................... 35
4.3 浮选机及搅拌桶的选择与计算 ............................................. 39
4.4 浓密机过滤机的选择与计算 ................................................. 42
4.5 过滤机的选择与计算 ............................................................. 43
第五章
辅助设备的选择与计算 ................................................... 44
5.1 给矿设备的选择与计算 ......................................................... 44
5.2 皮带运输机的选择与计算 ..................................................... 44
5.3 起重设备的选择 ..................................................................... 47
5.4 砂泵的选择与计算 ................................................................. 47
第六章
矿仓及堆栈业务 ............................................................... 49
f
6.1 原矿仓的选择与计算 ............................................................. 49
6.2 粉矿仓的选择与计算 ............................................................. 50
6.3 精矿仓的选择与计算 ............................................................. 51
第七章
药剂业务 ........................................................................... 52
7.1 药剂的用途及种类 ................................................................ 52
7.2 药剂的用量及添加地点 ........................................................ 52
7.3 药剂的管理及运输 ................................................................. 52
第八章
检修工作制度 ................................................................... 54
8.1 检修工作组织 ......................................................................... 54
8.2 机修制度 ................................................................................. 54
第九章
生产过程取样、检查及自动化 ...................................... 55
9.1 称量 ......................................................................................... 55
9.2 取样 ......................................................................................... 55
9.3 选厂自动化 ............................................................................. 55
第十章
化验室、实验室 ............................................................... 57
第十一章
尾矿业务 ....................................................................... 58
11.1 尾矿库的容积计算 .............................................................. 58
11.2 尾矿堆积地点 ....................................................................... 58
11.3 尾矿设施 ............................................................................... 58
第十二章
保安防火技术 ............................................................... 59
12.1 安全技术措施 ....................................................................... 59
12.2 防火措施 ............................................................................... 59
第二篇
建筑篇
................................................................................. 61
第一章
厂区自然条件 ................................................................... 62
第二章
选厂对建筑物的要求 ....................................................... 63
第三篇
供电篇
................................................................................. 65
第一章
电源及供电 ....................................................................... 66
第二章
选厂主要设备的电机一览表 .......................................... 67
第三章
电机房启动和管理 ........................................................... 68
第四章
变压器的选择和计算 ....................................................... 69
f
4.1 破碎筛分变压器的选择与计算 ............................................. 69
4.2 磨浮车间变压器的选择计算 ................................................. 69
4.3 精矿脱水车间变压器的选择计算 ........................................ 69
第五章
主要耗电指标 ................................................................... 70
第四篇
供水篇
................................................................................. 71
第一章
水源 ................................................................................... 72
第二章
用水量 ............................................................................... 73
2.1 生产用水量 ............................................................................. 73
2.2 生活用水量 ............................................................................. 73
2.3 消防用水量 ............................................................................. 73
2.4 高位水池容积的计算 ............................................................. 74
第三章
供水系统 ........................................................................... 75
第四章
选厂用水总量平衡 ............................................................ 76
第五篇
经济篇
................................................................................. 77
第一章
技术经济指标 ...............................