某燃煤电厂超低排放改造对烟尘的脱除效果研究
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摘要
辽宁省燃煤电厂超低排放工作全面推进,燃煤电厂经超低排放改造后,污染物指标控制限值要求为颗粒物10 mg/m~3。某燃煤电厂面临烟气超低排放要求,提标改造现有除尘器,每台炉配两台双室六电场干式低温静电除尘器,并在吸收塔喷淋层下方增设聚气环,在吸收塔净烟道处加装一级烟道除雾器。除尘器和吸收塔改造后,除尘效率由99.8%提高到99.94%,改造后总出口浓度6.80 mg/m~3,改造后排放量6.0 kg/h,削减量16 kg/h,各工况下烟气污染物折算浓度均符合标准要求。
The ultra-low emission work of coal-fired power plants in Liaoning Province has been comprehensively promoted.After the ultra-low emission transformation of coal-fired power plants,the limit value of pollutant index control is required to be 10 mg/m~3 for particulate matter.Facing with the requirement of flue gas ultra-low emission in a coal-fired power plant,the existing deduster was upgraded according to the standard.Each furnace was equipped with two double-chamber six-electric field dry low-temperature electrostatic precipitators,and a gas-collecting ring was added below the spray layer of the absorption tower,a first-level flue gas remover was installed at the clean flue of the absorption tower.After the transformation of the deduster and absorption tower,the dust removal efficiency increased from 99.8% to 99.94%.After the transformation,the total outlet concentration was 6.80 mg/m~3,the emission was 6.0 kg/h,and the reduction was 16 kg/h.The converted concentration of flue gas pollutants under various working conditions met the standard requirements.
The ultra-low emission work of coal-fired power plants in Liaoning Province has been comprehensively promoted.After the ultra-low emission transformation of coal-fired power plants,the limit value of pollutant index control is required to be 10 mg/m~3 for particulate matter.Facing with the requirement of flue gas ultra-low emission in a coal-fired power plant,the existing deduster was upgraded according to the standard.Each furnace was equipped with two double-chamber six-electric field dry low-temperature electrostatic precipitators,and a gas-collecting ring was added below the spray layer of the absorption tower,a first-level flue gas remover was installed at the clean flue of the absorption tower.After the transformation of the deduster and absorption tower,the dust removal efficiency increased from 99.8% to 99.94%.After the transformation,the total outlet concentration was 6.80 mg/m~3,the emission was 6.0 kg/h,and the reduction was 16 kg/h.The converted concentration of flue gas pollutants under various working conditions met the standard requirements.
引文
[1]胡洋洋.燃煤电厂超低排放改造项目全寿命周期成本管理研究[D].北京:华北电力大学(北京),2017.
[2]隋建才,徐明厚,邱继华,等.煤燃烧中可吸入颗粒物的形成及其控制研究现状[J].热力发电,2014,32(12):9-12.
[3]鲁晟,姚德飞.燃煤电厂烟气中颗粒物颗粒粒径分布特征研究[J].环境污染与防治,2010,32(8):62-65.
[4]梁硕.燃煤电厂超低排放改造对颗粒物排放浓度的浅析[J].低碳世界,2017(35):67-68.
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[8]国家环境保护部办公厅,国家能源局综合司.关于做好煤电机组达到燃机排放水平环保改造示范项目评估监测工作的通知(环办[2015]60号文)[EB/OL].(2016-02-23)[2018-07-22].http://sthj.ln.gov.cn/xxgkml/zfwj/lhh/201602/t20160223_89000.html.
[9]王娴娜,朱林,姜艳靓,等.燃煤电厂烟尘超低排放技术措施研究[J].电力科技与环保,2015,31(4):47-49.
[10]钱莲英,徐哲明,李震宇,等.燃煤机组超低排放改造对汞的脱除效果研究[J].环境科学与管理,2016,41(4):64-67.
[11]张春鑫.华能丹东电厂减排方案及效益评价[D].北京:华北电力大学(北京),2016.
[2]隋建才,徐明厚,邱继华,等.煤燃烧中可吸入颗粒物的形成及其控制研究现状[J].热力发电,2014,32(12):9-12.
[3]鲁晟,姚德飞.燃煤电厂烟气中颗粒物颗粒粒径分布特征研究[J].环境污染与防治,2010,32(8):62-65.
[4]梁硕.燃煤电厂超低排放改造对颗粒物排放浓度的浅析[J].低碳世界,2017(35):67-68.
[5]国家环境保护部.火电厂大气污染物排放标准:GB13223—2011[S/OL].(2011-09-21)[2018-08-20].http://kjs.mee.gov.cn/hjbhbz/bzwb/dqhjbh/dqgdwrywrwpfbz/201109/W020130125407916122018.pdf.
[6]国务院办公厅.煤电节能减排升级与改造行动计划(2014—2020年)[EB/OL].(2014-09-19)[2018-08-22].http://www.gov.cn/foot/2014-09/19/content_2753137.htm.
[7]国家环境保护部,国家发展和改革委员会,国家能源局.关于印发《全面实施燃煤电厂超低排放和节能改造工作方案》的通知(环发[2015]164号)[EB/OL].(2015-12-15)[2018-08-22].http://www.mee.gov.cn/gkml/hbb/bwj/201512/t20151215_319170.htm.
[8]国家环境保护部办公厅,国家能源局综合司.关于做好煤电机组达到燃机排放水平环保改造示范项目评估监测工作的通知(环办[2015]60号文)[EB/OL].(2016-02-23)[2018-07-22].http://sthj.ln.gov.cn/xxgkml/zfwj/lhh/201602/t20160223_89000.html.
[9]王娴娜,朱林,姜艳靓,等.燃煤电厂烟尘超低排放技术措施研究[J].电力科技与环保,2015,31(4):47-49.
[10]钱莲英,徐哲明,李震宇,等.燃煤机组超低排放改造对汞的脱除效果研究[J].环境科学与管理,2016,41(4):64-67.
[11]张春鑫.华能丹东电厂减排方案及效益评价[D].北京:华北电力大学(北京),2016.