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2021技术进步奖 | 深度脱硫除尘净化塔技术与装备

2022-08-02 14:42:58来源:中国环保产业协会 阅读量:16427

导读:项目成果在常规烟气参数或低热值高硫煤烟气参数条件下,实现出口 SO2浓度≤25mg/m3、粉尘浓度≤5mg/m3。
  在16位院士、30多家提名机构和100余位提名和评审专家的大力支持下,2021年“环境技术进步奖”圆满完成,31个项目获得一等奖和二等奖。
 
  据不完全统计,2021年的获奖成果包括国际专利15项、发明专利471项、实用新型专利等其他知识产权550项;2018-2020年,相关产值高达500亿元,实现利润100亿元,充分体现了我国环境技术创新跑出的加速度。
 
  我会将陆续发布获奖项目简介,供社会各界人士参考。
 
  (注:所有发布材料均由获奖单位提供。)
 
  超低排放已在火电厂大规模推广应用,为达标排放,环保系统配置更为复杂,普遍存在投资、运能和物耗较大问题,与节能互为制衡,经济性和运行稳定性有待优化改进。同时我国超低排放控制主体已延伸到非电行业,工业锅炉或炉窑多采用低热值煤等燃料,炉内工况复杂多变、烟气污染物波动大,加大了超低排放的难度。提升减排效能、实现低成本超低排放已是我国大气污染防治从减排为主向减排与质量改善并重转变过程中的迫切需求。为此该项目开发出深度脱硫除尘净化塔,实现 SO2 的高效脱除和粉尘的深度净化,为我国超低排放全面推广、改善大气环境质量提供技术支撑。主要技术创新点如下:
 
  1.开发出双级分区喷淋技术。通过新型气液再分布器进行气液导流,使高低 pH 值循环喷淋系统分区独立稳定运行,在深度脱除 SO2 的同时强化粉尘的协同脱除,提高脱硫剂的利用率和副产物石膏的质量。
 
  2.开发出错位浆液喷淋技术和壁流再分布技术。结合喷淋试验和 CFD 数模,获得高效错位互补喷淋的喷嘴和喷淋管布置方式,优化上下喷淋层夹角β,实现上下层边缘喷淋薄弱区相互弥补,结合壁流再分布技术,解决烟气附壁效应,塔内液滴分布合理、均匀覆盖塔截面,在保证塔壁喷雾量前提下减少浆液流量,设计时可适当减小液气比,降低运行能耗。
 
  3.开发出烟气整流及增效组合技术。基于气液传质理论和粉尘捕集规律,研究文丘里棒条格栅层棒条间距、多孔板开孔参数对气流分布和持液层高度的影响,开发出烟气整流及增效组合技术增强气液传质,强化吸收 SO2,提高粉尘碰撞去除率。
项目总体研究思路
 
  项目成果在常规烟气参数或低热值高硫煤烟气参数条件下,实现出口 SO2浓度≤25mg/m3、粉尘浓度≤5mg/m3。
晋能离石大土河项目现场
 
  项目成果节能减排效果好,已推广应用 85 套,其中火电厂 45 套,钢铁、电解铝、造纸等非电行业 38 套,实现合同订单 24.65 亿元。近三年实现产品销售 13.83 亿元,利税 6154.02 万元。产品符合我国燃煤机组、钢铁、电解铝等行业的节能减排改造需求,同时在工业炉窑、水泥等行业也有广泛的应用前景。
 
  获奖感言:
 
  张永  浙江菲达环保科技股份有限公司保技术部副总经理/高级工程师
 
  在国家“双碳”政策的推动下,节能提效、降污减排成为双碳战略布局中重要的两大抓手。随着我国对环境问题日益重视,SO2和粉尘已成为我国污染物控制排放的重要指标,但传统的减排技术在高排放标准的制约下,环保系统配置存在投资、运能和物耗较大的问题。此次研制的“深度脱硫除尘净化塔技术与装备”不仅达到SO2的高效脱除和粉尘的深度净化的高标排放要求,提升空气质量,推进生态环境质量的持续改善;同时兼具投资成本低、改造工期短,场地占用少、物料损耗小等优点,拓宽了我国各行业超低排放治理方案的选择途径,开辟了“高环保标准+低排放=低投入+低能耗+低物耗”高效绿色环保新局面,促进了行业整体技术进步。该成果在助力控排企业节能降耗、绿色可持续发展等方面发挥了重要的作用,提供了切实有效的低碳技术路线,为推动“碳达峰”“碳中和”目标如期实现贡献技术力量。
 
  结语
 
  为鼓励技术创新,建立以企业为主体、市场为导向、产学研用相结合的环境技术创新体系,经国家科学技术奖励工作办公室备案(社会科技奖励编号0299号),中国环境保护产业协会于2018年设立了面向全国、面向产业的“环境技术进步奖”。该奖项聚焦环境应用技术成果,不授予环境学科基础研究、环境管理研究等软科学成果。
 
  欢迎各界环保人士,积极参与2022年度环境技术进步奖相关工作。
 
  原标题:2021技术进步奖 | 深度脱硫除尘净化塔技术与装备

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