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焦炉烟道废气余热回收项目可行性研究报告

2948
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2019-04-18
简介
第一章总论1.1项目背景1.2项目概况1.3结论第二章项目建设背景及必要性分析2.1项目提出的背景2.2项目建设必要性2.3企业现状第三章建设内容与产品方案3.1建设内容3.2产品方案第四章工程技术方案4.1主要设计原则4.2技术方案4.3设备方案4.4工程方案第五章主要原材料、燃料供应第六章建设地址及建设条件6.1建设地址6.2厂址建设条件第七章总图运输与公用辅助工程7.1总平面运输方案设计原则7.2总图布置7.3公用辅助工程第八章节能分析8.1设计依据8.2项目能源消耗种类和数量分析8.3项目所在地能源供应状况分析8.4节能措施8.5建筑节能8.6能源管理8.7节能效果分析结论与建议第九章环境影响评价9.1场址环境条件9.2环境质量标准及排放标准9.3主要污染源和污染物9.4环保监测设施方案第十章劳动安全卫生与消防10.1劳动安全卫生10.2消防第十一章组织机构与人力资源配置11.1组织机构11.2劳动定员11.3人员培训第十二章项目实施进度及项目招标12.1项目实施进度安排12.2项目招投标方案第十三章投资估算与资金筹措13.1总投资估算13.2建设投资13.3流动资金估算13.4资金筹措第十四章财务评价14.1编制依据14.2基础数据14.3财务评价14.4不确定性分析14.5财务分析结论第十五章风险分析15.1主要风险因素识

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第一章总论1.1项目背景1.2项目概况1.3结论第二章项目建设背景及必要性分析2.1项目提出的背景2.2项目建设必要性2.3企业现状第三章建设内容与产品方案3.1建设内容3.2产品方案第四章工程技术方案4.1主要设计原则4.2技术方案4.3设备方案4.4工程方案第五章主要原材料、燃料供应第六章建设地址及建设条件6.1建设地址6.2厂址建设条件第七章总图运输与公用辅助工程7.1总平面运输方案设计原则7.2总图布置7.3公用辅助工程第八章节能分析8.1设计依据8.2项目能源消耗种类和数量分析8.3项目所在地能源供应状况分析8.4节能措施8.5建筑节能8.6能源管理8.7节能效果分析结论与建议第九章环境影响评价9.1场址环境条件9.2环境质量标准及排放标准9.3主要污染源和污染物9.4环保监测设施方案第十章劳动安全卫生与消防10.1劳动安全卫生10.2消防第十一章组织机构与人力资源配置11.1组织机构11.2劳动定员11.3人员培训第十二章项目实施进度及项目招标12.1项目实施进度安排12.2项目招投标方案第十三章投资估算与资金筹措13.1总投资估算13.2建设投资13.3流动资金估算13.4资金筹措第十四章财务评价14.1编制依据14.2基础数据14.3财务评价14.4不确定性分析14.5财务分析结论第十五章风险分析15.1主要风险因素识别和评估15.2防范和降低风险对策第十六章结论焦炉烟道废气余热回收项目可行性研究报告目录第一章总论·····························································································11.1项目背景···························································································11.2项目概况···························································································21.3结论·································································································4第二章项目建设背景及必要性分析·································································52.1项目提出的背景··················································································52.2项目建设必要性··················································································52.3企业现状···························································································6第三章建设内容与产品方案··········································································73.1建设内容···························································································73.2产品方案···························································································7第四章工程技术方案····················································································84.1主要设计原则·····················································································84.2技术方案···························································································84.3设备方案··························································································134.4工程方案··························································································15第五章主要原材料、燃料供应······································································16第六章建设地址及建设条件·········································································176.1建设地址··························································································176.2厂址建设条件····················································································17第七章总图运输与公用辅助工程···································································187.1总平面运输方案设计原则·····································································187.2总图布置··························································································187.3公用辅助工程····················································································19第八章节能分析························································································238.1设计依据··························································································238.2项目能源消耗种类和数量分析······························································258.3项目所在地能源供应状况分析······························································278.4节能措施··························································································278.5建筑节能··························································································288.6能源管理··························································································298.7节能效果分析结论与建议·····································································29第九章环境影响评价··················································································309.1场址环境条件····················································································309.2环境质量标准及排放标准·····································································309.3主要污染源和污染物···········································································309.4环保监测设施方案··············································································31第十章劳动安全卫生与消防·········································································3210.1劳动安全卫生··················································································3210.2消防······························································································33第十一章组织机构与人力资源配置································································3411.1组织机构························································································3411.2劳动定员························································································3411.3人员培训························································································34第十二章项目实施进度及项目招标································································3512.1项目实施进度安排············································································3512.2项目招投标方案···············································································36第十三章投资估算与资金筹措······································································3913.1总投资估算·····················································································3913.2建设投资························································································3913.3流动资金估算··················································································4013.4资金筹措························································································40第十四章财务评价·····················································································4114.1编制依据························································································4114.2基础数据························································································4114.3财务评价························································································4214.4不确定性分析··················································································4214.5财务分析结论··················································································43第十五章风险分析·····················································································4415.1主要风险因素识别和评估···································································4415.2防范和降低风险对策·········································································44第十六章结论························································································45附表表1投资估算表表2其他费用估算表表3流动资金估算表表4项目投资使用计划与资金筹措表表5财务分析指标汇总表表6营业收入、营业税金及附加和增值税估算表表7总成本费用估算表表7-1原辅材料及燃料动力费用估算表表8固定资产折旧费估算表表9利润与利润分配表表10项目投资现金流量表表11项目资本金现金流量表表12财务计划现金流量表表13资产负债表表14敏感度系数与临界点分析表附图附图1XXX公司总平面布置图附图21#焦炉配套余热回收装置平面布置图附图32#焦炉配套余热回收装置平面布置图1第一章总论1.1项目背景1.1.1项目名称XXX公司焦炉烟道废气余热回收项目1.1.2项目承办单位概况项目承办单位:XXX公司。1.1.3可行性研究报告编制依据1、《产业结构调整指导目录(2011年本)》;2、《国家发展改革委办公厅、财政部关于组织审报2012年节能技术改造财政奖励资金备选项目的通知》(发改办环资[2011]3174号);3、《投资项目可行性研究指南(试用版)》中国电力出版社2002年3月第一版;4、《建设项目经济评价方法与参数(第三版)》;5、项目承担单位提供的有关技术和设备等基础资料;6、国家和行业有关规定、规范。1.1.4项目背景资源是人类生存和经济社会发展的生命线,随着社会经济的发展和人民生活水平的提高,对能源的需求量不断增长。节约能源和资源综合利用已成为全球性的热门话题。本项目焦炉烟气余热回收是在焦炉烟气出口的主烟道上开一个烟道口,通过引风机的作用,将烟气引至锅炉,同时将软化水引入锅炉入水侧,通过换热,产生蒸汽供生产和生活使用。目前,焦炉烟气余热回收在国内已是成熟技术。根据行业经验以及厂家提供的设计条件:2×75万吨级焦炉可利用的烟气量配置2套余热回收装置,合计可产生压力0.8Mpa,温度172℃的饱和蒸汽15t/h。项目实施后,可充2分利用焦炉废气的大部分热能,通过换热产生的蒸汽可供焦化生产线和冬季采暖使用,节约了大量能源,同时降低了烟气的灰尘和热量排放,减少了空气污染,实现“节能减排”的最佳效果。项目建设符合国家产业政策,对建设节能型社会,促进经济社会可持续发展具有重要意义。1.2项目概况1.2.1拟建地点本项目拟建地点位于XXX公司现有厂区内,两套余热回收装置分别安装在1#焦炉烟囱北部和2#焦炉烟囱南部。(平面布置详见附图)1.2.2建设规模本项目建成后,2套余热回收装置(2×7.5t/h)正常工况下产蒸汽量合计为15t/h,年运行时间按8760h计算,年产蒸汽量为131400吨。1.2.3主要建设条件1、生产工艺本项目采用热管式废气集热锅炉回收余热并生产蒸汽,操作简单,安全性好,是目前国内先进的烟气余热回收利用工艺。2、主要原材料供应本项目原材料为2×75万吨/年焦炉产生的废烟气,通过回收利用废气的余热生产蒸汽。3、节能本项目正常年用电、水等能源折合标准煤年用量为349.55tce。单位产品综合能耗2.66kgce/t,万元产值综合能耗为0.30tce/万元,万元工业增加值能耗0.41tce/万元。4、职工定员本项目总定员7人。31.2.4项目投入资金及效益情况1、总投资本项目报批总投资估算为2041万元,其中建设投资和建设期利息合计为2026万元,铺底流动资金为15万元。报批总投资2041万元拟由企业自筹资金解决。2、项目的经济效益本项目正常生产年销售收入1314万元,税后财务内部收益率28.72%,税后投资回收期4.32年(含建设期),总投资收益率27.29%。3、财务分析指标汇总表序号项目单位数据1建设投资万元20262流动资金万元48其中:铺底流动资金万元153项目资本金万元20414年营业收入万元13145年销售税金及附加万元1246年总成本万元6267年利润总额万元5648年息税前利润万元5669年净利润万元42310投资利润率%27.1911总投资收益率%27.2912资本金净利润率%20.7313项目投资税前指标财务内部收益率%37.94财务净现值万元3183投资回收期年3.59414项目投资税后指标财务内部收益率%28.72财务净现值万元2176投资回收期年4.3215资本金财务内部收益率%29.0716以生产能力利用率表示的盈亏平衡点%38.701.3结论本项目通过回收焦炉烟气余热,每年可生产0.8MPa饱和蒸汽131400吨,相当于每年可为企业节约12201吨标准煤,节能效果显著,符合《国家发展改革委办公厅、财政部关于组织审报2012年节能技术改造财政奖励资金备选项目的通知》(发改办环资[2011]3174号)所支持的余热余压利用项目的要求。本项目所采用的工艺技术成熟可靠,项目建成后其所需的原材料和水、电等动力供应有充分的保证。项目的建设符合国家的产业政策,不仅具有较好的经济效益,而且还具有良好的社会效益和环境效益。企业为实现经济、社会和环境效益相统一,建设资源节约型和环境友好型社会做出应有的贡献,项目建设可行。5第二章项目建设背景及必要性分析2.1项目提出的背景煤车间送来的配合煤装入煤塔,装煤车按作业计划从煤塔取煤,经计量后装入炭化室内。煤料在炭化室内经过一个结焦周期的高温干馏制成焦炭并产生荒煤气。炭化室内的焦炭成熟后,用推焦车推出,经拦焦车导入熄焦车内,并由电机车牵引熄焦车到熄焦塔内进行喷水熄焦。熄焦后的焦炭卸至凉焦台上,冷却一定时间后送往筛焦工段,经筛分按级别贮存待运。煤在炭化室干馏过程中产生的荒煤气汇集到炭化室顶部空间,经过上升管、桥管进入集气管。约700℃左右的荒煤气在桥管内被氨水喷洒冷却至90℃左右。荒煤气中的焦油等同时被冷凝下来。煤气和冷凝下来的焦油等同氨水一起经过吸煤气管送入煤气净化车间。焦炉加热用的焦炉煤气,由外部管道架空引入。焦炉煤气经预热后送到焦炉地下室,通过下喷管把煤气送入燃烧室立火道底部与由废气交换开闭器进入的空气汇合燃烧。燃烧后的废气经过立火道顶部跨越孔进入下降气流的立火道,再经蓄热室,又格子砖把废气的部分显热回收后,经过小烟道、废气交换开闭器、分烟道、总烟道、烟囱排入大气。对于其中经总烟道进入烟囱的热烟气仍有较大的余热回收价值。本项目就是为回收这一部分烟气的余热而设计。2.2项目建设必要性焦化厂是能源转换的工厂,在能源转换过程中节能潜力巨大。生产1吨焦炭消耗1.33~1.35t洗精煤。而焦炉烟气余热占整个焦炉能耗的8%,对于年产以百万吨计量的焦炭企业来说,稍加措施就能节省数额巨大的能量。同时达到节能减排、降低成本的目的,得到更多富裕煤气。焦炉烟气经蓄热室预热空气后,温度从1000℃降到300℃左右后经总烟6道排走。焦炉煤气燃烧后的烟气比热大约为1.421kJ/Nm3·℃,当烟气从300℃降为150℃时,可以利用的余热为213kJ/Nm3烟气,生产的蒸汽可以满足部分焦炉用汽,减少焦炉煤气消耗。随着近几年来低温余热回收技术的突飞猛进,焦化行业的余热回收项目造价大幅度降低,同时余热回收效率大幅度提高。而且余热利用项目,不但可以减排大量的烟尘、CO2和SO2等,创造巨大的环保效益,同时能够创造可观的节能效益和经济效益,在不影响焦炉工艺的前提下,采用成熟的余热回收技术,可实现一举多得的收益,确实是应该大力提倡的节能减排项目。2.3企业现状XXX公司于2007年9月新建2×75万t/a炼焦制气工程,并于2009年9月达产,年产焦炭150万吨。该工程采用JNX70-2型2×60孔复热式焦炉,配套190t/h干熄焦装置,湿法熄焦作为备用。焦炉的装煤及出焦除尘均采用除尘地面站方式。焦炉生产中加热炭化室的燃烧废气通过分烟道汇总到总烟道后会一直向大气排放,排放温度可达到300℃左右,这些废烟气直接排放到空中,严重污染了空气环境。为落实科学发展观,贯彻节能减排的可持续发展战略,XXX公司拟建两套镍基钎焊热管余热回收装置。拟对现有两座焦炉烟道废气余热进行回收利用,本项目建成后,通过回收焦炉烟气余热,每年可生产0.8MPa饱和蒸汽131400吨,可以为溴化锂蒸汽制冷提供蒸汽,可以做焦油深加工用,也可供厂区生活取暖,相当于每年为企业节约12201吨标准煤,节能效果显著。项目建设不仅充分利用了焦炉烟气的余热,同时还减少了燃煤锅炉的能源消耗,间接减少煤气燃烧后排放的废气对环境的影响,实现节能与减排双丰收。综上所述,本项目的建设是可行且必要的。7第三章建设内容与产品方案3.1建设内容根据XXX公司2×75万t/a炼焦制气工程的烟气产量,本项目新购置并建设烟气余热回收制蒸汽装置2套(2×7.5t/h),包括锅炉主体、蒸汽系统、给水系统、烟气系统、排污系统、电控系统以及消防、蒸汽管路及保温等配套设施。3.2产品方案项目建成后,2套烟气余热回收装置(2×7.5t/h)正常工况下饱和蒸汽产量合计为15t/h。年运行时间按8760h计算,年产饱和蒸汽量为131400吨。蒸汽压力为0.8MPa,温度为172℃。产品方案如下表所示:产品方案表产品名称参数小时产量t/h年生产时间h年产量t/a饱和蒸汽压力:0.8MPa温度:172℃1587601314008第四章工程技术方案4.1主要设计原则1、在不影响焦炉正常运行的前提下最大限度地利用余热。2、在生产可靠的前提下,尽可能采用先进的工艺技术方案,以降低操作成本和改造基建的投入。3、以生产可靠为前提,采用成熟、先进的工艺设备。4、余热锅炉的过程控制采用集中控制原则,基本实现自动化为目标。5、贯彻执行国家和地方对环保、劳动、安全、计量、消防等方面的有关规定和标准,做到“三同时”。4.2技术方案4.2.1余热回收装置的主要工艺技术原理热管余热锅炉系统主要由热管蒸发器、热管省煤器、低温蒸汽发生器及汽水管路组成。系统采用高效传热元件——重力热管,较一般余热回收装置有许多明显优点。1、重力热管工作原理热管是本项目余热锅炉的核心部件,通过密闭真空管壳内工作介质的相变潜热来传递热量,其传热性能类似于超导体导电性能,它具有传热能力大,…
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