180万吨选煤厂设计.rar

以180万吨选煤厂设计为例，介绍了选煤厂设计的步骤及选煤厂设计的要求。

摘要
选煤厂设计工作是指导选煤厂基本建设的重要部分。选煤厂在建成以后能否获得最大的经济效益，设计工作起着决定作用。本设计主要介绍了180万吨选煤厂设计的步骤和内容,还有专题论文的内容。
该选煤厂设计的步骤主要是根据所给筛分浮沉试验资料，确定原煤为极难选煤，采用重介选煤方法，并制定合理的工艺流程。因此在设计过程中涉及到对介质平衡，水量平衡、数质量平衡的计算，然后编制最终产品平衡表。
为使选煤厂投产后能达到设计所要求的生产指标，进行了设备选型和计算。根据所选设备和所确定的工艺流程，进行车间工艺布置。最后对选煤厂进行总平面布置和经济概算。
选煤厂固定资产投资13369.915万元，其中土建工程8342.915万元，设备购置4506.895万元，安装工程193.173万元，其他费用325.986万元。选煤厂吨煤介耗0.94Kg/t，吨煤电耗7kW.h/t，吨煤耗清水量0.19m3/t。原煤年入洗量1.80Mt。精煤灰分9.38%，年产量0.972Mt;中煤灰分25.75%，年产量0.487Mt；矸石副产品灰分78.98%，年产量0.219Mt。吨煤基建投资52.89元/t，吨煤加工费20.1元，生产工效率70.84t/人，年产值38037.98万元，折旧费是497.084万元，年利税12552.53万元，年利润25485.45万元，投资回收期0.52年。
我的专题论文主要内容是：介绍了我国选煤工业现状及发展情况。指出选煤技术的现状主要体现在五方面:入选比例继续提高；选煤厂规模及装备大型化；重介质旋流器选煤已成为发展重点；模块化成为选煤厂设计和建设的新模式；生产过程控制和全厂自动化水平不断提高。我国的选煤科学技术将按照面向选煤生产建设的产业化技术、重点开发研究的关键技术和处于基础研究阶段的前瞻技术三个层次，得到进一步的发展，并针对差距结合国家煤炭产业远景规划提出选煤技术发展方向与产业化建议。
关键字:选煤厂  炼焦煤   工艺流程

Abstract
The design work of coal preparation plant is an important part that guides the capital construction of the factory. After the coal preparation plant is built, whether it can acquire the biggest economic performance, it depends on the design work. This paper mainly introduces the steps and contents of 3000,000 tons coal preparation plant designed work, and the contents of special paper.
The steps of the coal preparation plant design mainly base on the given float-sink experiment data. I work out that the coarse coal is the most difficult one and so adopt the heavy medium separation, and formulate the optimum flowsheet.  During the washing, it will relate to the dense medium and therefore I make some calculation of dense medium balance and water quality balance, then work out the final product balance list.
We also make equipment choosing and planning in order to achieve the demanded index after putting into practice. According to the specific equipments and flowsheet , we arrange the equipments in the best way . Finally we make the economic planning.
The fixed assets investmenr of coal preparation plant is 13369.473 ten thousand yuan.Of which building projects cost is 8342.915 ten thousand yuan,original equipment cost is 4506.859 ten thousand yuan,erection works cost is 193.173 ten thousand yuan and the other costs are 325.986 ten thousand yuan.The dielectric loss of short ton coal is 0.94Kg/t.The quantity of electricity loss per ton is 7 Kw•h/t.The water consumption of short ton is 0.19 m3/t.The handling capacity of coal preparation per year is 1.80Mt/a.The ash content of washed coal is 9.38% and the annual yield is 0.972Mt/a.The ash content of mid-washed coal is 25.75% and the annual yield is 0.487 Mt/a.The ash content of gangue is78.98% and the annual yield is 0.219Mt/a.The capital expenditure per ton is 52.84 yuan/t. The processing cost per ton is 20.1 yuan/t.The efficiency of production workers is 70.84t per capita.The output value one year is 38037.98 ten thousand yuan. The depreciation cost is 497.084 ten thousand yuan .The annual interest tax is12552.53 ten thousand yuan .The annual benefit is 25485.45 tenthousand yuan .The capital pay-off time is0.52a.
The main content of my special paper is: It introduces the industrial development brief of Chinese coal preparation. The situation that coal washing technology mainly embodied in five aspects: in proportion to continue improving; the scale and equipments of coal preparation plant becomes larger. Heavy medium coal preparation has become a key growth; The modular has also become the new mode of coal preparation design and construction ; The production process control and factory automation level enhances unceasingly. China's coal cleaning technology will develop further according to the construction of coal production technology and industrialization development research on the key technology and in basic research stage three levels, and further promote the development of the coal industry in gap with vision forward coal washing technology industrialization development direction and the advice.

Keywords: Coal preparation plant   Coking coal        Flowsheets 

目  录
1概述.................................................,1
1.1设计规模及工作制度 1
1.2矿区地理位置 1
1.3矿区地理气候及地震 1
1.4供水、供电 1
1.4.1水源 1
1.4.2电源 1
1.5产品品种和用途 2
1.6主要技术经济指标 2
2选煤工艺......................................................3
2.1煤质资料分析 3
2.1.1煤样来源的可靠性 3
2.1.2煤的工业分析及筛分特性 4
2.2选煤方法的确定 10
2.2.1选煤方法 10
2.2.2入选方式---混合与分组分级问题 12
2.3方案的技术经济比较 17
2.3.1方案的预测 17
2.3.2技术经济比较 23
2.4工艺流程的确定 25
2.4.1受煤系统 25
2.4.2准备车间 25
2.4.3重介车间工艺流程 25
2.4.4 煤泥水系统 26
2.4.5产品装车系统 26
3工艺流程计算.................................................27
3.1介质流程的计算 27
3.2数质量流程计算 40
3.3 水量流程的计算 46
3.4产品平衡表 50
4设备选型.....................................................52
4.1设备选型的原则 52
4.2  分选作业设备 52
4.2.1 准备车间设备 52
4.2.2  重介车间设备： 53
4.2.3 浮选车间设备 55
4.2.4 浓缩车间设备 55
4.2.5介质桶和混料 56
4.3 运输设备 56
4.4储煤设备 59
5选煤工艺布置.................................................67
5.1总平面布置 67
5.2原煤受煤 67
5.3准备车间 67
5.4主厂房 67
5.5产品仓 69
5.6煤泥压滤车间 69
6生产技术检查.................................................70
6.1检查的内容与项目 70
6.2技术检查取样设置 72
6.3 检查室 73
7选煤厂经济概算...............................................74
7.1劳动定员 74
7.2生产成本计算 76
7.2.1分离前成本计算： 76
7.2.2分离后成本计算： 76
7.3概算书的编制 78
7.3.1编制说明： 78
7.3.2单位工程概算： 78
8工业场地总平面...............................................86
8.1总平面布置用原始资料 86
8.2总平面布置 86
8.2.1布置原则 86
8.2.2场地功能区分 86
8.2.3总平面布置 86
8.2.4运输 87
8.2.5场地利用系数及绿化 87
9环境保护.....................................................88
9.1主要污染源及其控制措施 88
9.2厂区绿化 89
致谢..........................................................90
参考文献......................................................91
附录一  原始资料..............................................92
附录二  专题论文..............................................97
附录三  英文文献及译文.......................................104