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绿色环保为“煤都”发展注入新动能

2017-08-25 07:11:11   中国青年网

本报通讯员 王文强

地处我省陇东地区的中国电建集团甘肃能源投资有限公司所属华亭发电公司,坚持绿色发展理念,筑牢环保之堤,既保护了周边绿水青山,又将环保治理转化为公司绿色发展的新动能。

作为全省煤电产业节能环保的示范企业,华亭发电公司一手抓煤泥、煤矸石掺烧综合利用,一手抓机组改造热电联产,两手并重助力地方环保、民生共同发展,在关山东麓、汭水之畔与地方政府一道共同守护绿水青山,为华亭县这座“绿色煤都”的经济发展注入了新动能。

火电企业历来是环保榜单上的重点监控对象之一,天然一副高耗能、高污染的“红色”面孔,但华亭发电公司自建厂之初就为这个“红色”的面孔打造好了“绿色”的底子,始终走在绿色环保的最前沿:2×145MW循环流化床机组,脱硫效率达85%以上,氮氧化物排放浓度低于200mg/m3,除尘率达99.9%,工业废水全部实现回收利用。公司在投产之时还曾创造了甘肃火电发展进程中的数个第一:甘肃最大的循环流化床锅炉机组、甘肃省首台采用直接空冷技术的发电机组、甘肃省首座煤炭资源综合利用的环保型坑口电厂。

在十余年的发展过程中,公司的绿色发展之路不断“渐进式升级”:2014年被国家发改委认定为资源综合利用电厂,成为甘肃省统调电厂中唯一一家获得认定的资源综合利用电厂;2015年又获得甘肃省“循环经济示范企业”称号,成为入选的20家企业中唯一的火力发电企业……一系列闪亮的数据为新形势下省内火电企业实现绿色转型提供了示范。

华亭矿区每年因150余万吨煤泥、煤矸石造成的“黑色”污染,一直以来都为政府和百姓诟病,给地方环保工作造成了极大的压力。华亭发电公司循环流化床机组最大的环保特性就是能吃“粗粮”,可将华亭矿区产生的大量煤矸石、煤泥就地转化为清洁电能。但是要确保每年将数十万吨的煤矸石、煤泥“吃得下、消得了、化得掉”,成为摆在生产技术人员面前的一大难题。通过认真吸取历年来锅炉出现的问题教训,该公司采取一系列措施,破除了煤矸石掺烧的技术瓶颈,掺烧比例大幅提升。

2016年,面对省内电力产能过剩、电价下挫、煤价高企等经营逆境,该公司又投入1000余万元开展煤泥输送系统改造工程,将煤泥掺烧比例由原来的20%提高至47%,预计每年至少消耗华亭矿区煤泥30万吨,折合混煤约18万吨。目前,公司煤泥、煤矸石的掺烧比例最高提升至70%,自投产以来累计掺烧煤泥、煤矸石超过154万吨,节约燃料成本超过6500万元,资源综合利用电厂环保优势得到了充分释放,实现了社会效益和经济效益双赢。

热电联产是国家积极鼓励的城市基础设施建设项目,具有节约能源、改善环境、提高供热质量、增加电力供应等良好的综合效益。2014年,华亭发电公司正式启动供热改造项目,陆续完成了项目能评、稳评和环评等前期工作,并取得了项目备案等相关支撑文件。

自2017年以来,经过多方考察论证、多次会议研讨、多次地企协商,最终共促项目达成一致意见,并正式获得中国电力建设集团股份有限公司的立项批复。目前,该项目已进入实质推进阶段,预计9月底竣工调试,10月中旬实现集中供暖。项目投运后,一方面每年可减少二氧化硫、氮氧化物及烟尘排放量近5600吨,节约年度生产标准煤近17万吨。另一方面公司发电机组热效率将从33%-36%上升至45%。

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