为改善重庆城市环境污染，重钢钢铁产业将搬出主城区，迁往长寿江南镇新区。 通过搬迁，重钢可以优化工艺，调整产品结构，提高装备水平，做到节能、环保以 促进重钢持续健康发展。第一期工程将新建1780mm 热连轧厂和 4100mm 宽厚板厂， 与这两个轧钢厂配套的供排水项目可行性研究设计将对轧钢污水处理工艺进行分析 研究，提出合理利用水资源、循环使用、达到零排放的方案。 轧钢生产过程中消耗水量大，设备、轧材的直接冷却水质被污染，含有氧化铁 皮、油脂和其它杂质，污水经处理后达到轧钢生产要求并循环使用，一直是污水处 理工艺研究的重要课题。本文阐述了重钢新建轧钢厂供排水项目的内容，其中核心 问题就是污水处理、循环使用，分析了传统的轧钢污水处理工艺在实践运行中出现 的缺陷，如水质差、费用高及造成环境污染的原因，提出了 1990 年代以后逐渐应用 在轧钢污水处理中的三种净化效果好、占地面积小、投资省的工艺方案，并对三种 处理方案进行技术经济比较，从中选出稀土磁盘分离净化工艺用于重钢新区轧钢的 污水处理，完成可行性研究。 本文重点在估算轧钢污水处理项目各部分资金投入，分析项目的盈利能力、偿 债能力、抗风险能力，并作出效益评估的结论。本文的结论是根据对财务报表的详 细分析以及对内部收益率、净现值、投资利润率和投资回收期等动态、静态财务盈 利性评估指标的计算。 关键词：环保搬迁，供排水，污水处理，财务评估II ABSTRACT The CSMS （Chongqing Steel Making Corp.） will be relocated to JiangNa of Chang Shou district of ChongQing. It will acquire advanced equipments and adopt new technologies to reduce energy consumption and be more environmental friendly, which will provide the strength for the growth of the business. In the first stage of the project, two new plants, 1780mm width continuous hot roll and 4100mm width thick plate, will be built. The feasibility studies of the waster water treatment of the two plants suggest a plan that will achieve zero waste water by recycling the process water. Process water is used in steel making to cool equipment and rolled stuffs The oxidized steel scraps, waster grease, etc, will contaminate the process water. Lots of researches had been done on recycling the process water for steel making process. This paper iterated the problems in traditional water treatment technologies；i.e. deteriorate water quality, high expanses and environment contaminations. Three new technologies developed since 1990s has been compared. They have advantages in quality of treated water, facility area occupancy, and needed capital. The paper reaches the conclusion that rare-earth magnetic separation will economically be the best choice. This paper focus on the estimating of investments in each section, analyzing profitability, solvency, risk assessment, and finalized with benefits evaluation. The analyses are based on data from balance sheet, cash flows and income statement. The paper details in calculation of IRR(Internal Rate of Return),NPV(Net Present Value),RIO(Rate of Return of Investment),and PP(Payback Period),etc which covers both static and dynamic financial indexes. Key words：environmentally relocation, water supply and discharge, waste water treatment,Financial AnalysisIII 目 录 摘要..............................................................................................................................I ABSTRACT.......................................................................................................................II 1 总 论..............................................................................................................................1 1.1 项目的背景...............................................................................................................1 1.2 重钢环保搬迁新厂址及供水概况 ..........................................................................1 1.3 项目的提出...............................................................................................................1 1.3.1 国内外轧钢浊水处理的现状 ...........................................................................1 1.3.2 轧钢水处理站可行性研究的目的 ...................................................................2 1.4 轧钢水处理站建设规模与目标 ..............................................................................3 1.5 项目投资效益评价方式 ..........................................................................................3 1.5.1 项目财务效益的概念 .......................................................................................3 1.5.2 项目财务效益评价指标 ...................................................................................3 1.5.3 项目社会效益的概念 .......................................................................................4 1.5.4 项目社会效益评价指标 ...................................................................................5 1.5.5 提高投资效益的途径 .......................................................................................5 1.6 轧钢水处理站投资需求及效益测算 ......................................................................6 1.7 本文研究的主要内容...............................................................................................6 2 轧钢水处理站工程项目内容 .........................................................................................8 2.1 轧钢水处理工艺概况...............................................................................................8IV 2.2 净、浊循环水系统的水质、水量 ..........................................................................8 2.3 净循环水系统.........................................................................................................10 2.4 浊循环水系统.........................................................................................................10 3 轧钢水处理站浊循环水系统净化工艺方案技术经济分析.......................................11 3.1 生产工艺技术是项目经济合理的重要条件 ........................................................11 3.2 三种净化工艺方案的技术经济特点 ....................................................................11 3.2.1 化学除油净化处理工艺的技术经济特点 .....................................................11 3.2.2 稀土磁盘分离净化处理工艺的技术经济特点 .............................................11 3.2.3 高效斜窄流沉淀除油处理工艺的技术经济特点 .........................................12 3.3 稀土磁盘分离净化器与化学除油净化器的经济分析 ........................................12 3.3.1 化学除油净化器效益分析 .............................................................................12 3.3.2 稀土磁盘分离净化器效益分析 .....................................................................14 3.3.3 稀土磁盘与化学除油设备技术经济综合比较 .............................................15 3.3.4 比较结果..........................................................................................................18 3.4 稀土磁盘设备与高效斜窄流沉淀除油设备经济效益比较 ................................18 3.4.1 稀土磁盘分离净化设备投资成本 .................................................................18 3.4.2 高效斜窄流沉淀除油设备投资成本 .............................................................18 3.4.3 方案技术、经济比选结论 .............................................................................18 4 轧钢水处理站投资估算及融资方案 ...........................................................................20 4.1 投资估算的范围.....................................................................................................20 4.2 投资估算的具体内容.............................................................................................20 4.3 投资估算必须达到的要求 ....................................................................................20V 4.4 建设投资估算的依据.............................................................................................20 4.5 建设投资估算步骤和方法 ....................................................................................21 4.5.1 估算步骤..........................................................................................................21 4.5.2 估算方法..........................................................................................................21 4.6 流动资金估算.........................................................................................................21 4.7 项目投入总资金.....................................................................................................21 4.8 工程内容概述.........................................................................................................22 4.8.1 轧钢水处理站的地理位置及建设规模 .........................................................22 4.8.2 人力资源配置 .................................................................................................23 4.9 轧钢水处理站投资估算 ........................................................................................24 4.9.1 投资估算编制依据 .........................................................................................24 4.9.2 建设投资估算 .................................................................................................24 4.9.3 流动资金估算及建设期利息 .........................................................................26 4.10 融资方案...............................................................................................................26 4.10.1 重钢节能环保搬迁长寿江南新区项目的融资计划 ...................................26 4.10.2 以重钢内部项目方式建设水处理站的融资方案 .......................................27 4.10.3 以 BOT 方式建设水处理站的融资方案 .....................................................27 5 轧钢水处理站财务评价 ...............................................................................................29 5.1 项目财务评价基础数据与参数的选取 ................................................................30 5.2 营业收入、营业税金及附加估算 ........................................................................31 5.3 费用估算.................................................................................................................31 5.4 财务评价报表.........................................................................................................33VI 5.5 财务评价指标分析.................................................................................................37 5.5.1 盈利能力分析 .................................................................................................37 5.5.2 偿债能力分析 .................................................................................................38 5.6 不确定性分析.........................................................................................................39 5.6.1 盈亏平衡分析 .................................................................................................39 5.6.2 敏感性分析......................................................................................................40 5.7 以重钢内部方式建设水处理站财务评价 ............................................................44 5.8 以 BOT 方式建设水处理站财务评价 ..................................................................45 6 项目环境、社会效益评价及风险分析 .......................................................................46 6.1 环境效益评价.........................................................................................................46 6.2 社会效益评价.........................................................................................................47 6.3 项目风险分析.........................................................................................................47 6.3.1 技术风险..........................................................................................................47 6.3.2 财务风险..........................................................................................................47 6.3.3 工程风险..........................................................................................................48 7 结 论............................................................................................................................49 8 附 录............................................................................................................................51 致 谢............................................................................................................................65