循环流化床锅炉燃烧福建劣质无烟煤的应用实践.pdfVIP

苏建民 福建省龙岩发电有限公司, 福建 龙岩 364002 [ ] 福建劣质无烟煤是目前世界上最难燃烧煤种之一, 实现 煤种的高效洁净燃烧 一直是 一个技术难题对此, 采用循环流化床( CFB) 锅炉, 并采取 床下燃烧器+ 床上烟煤脉 动给煤 双回料器提高燃烧温度增加炉膛高度低床压控制原煤粒径等措施, 实现 福建劣质无烟煤优化燃烧, 锅炉燃烧效率 95% [ ] 循环流化床; 劣质无烟煤; 脉动给煤; 低床压; 原煤粒径 [ ] T K229 [ ] A [ ] 1002- 3364( 2010) 07- 0011- 03 [DOI ] 10. 3969/ j. issn. 1002- 3364. 2010. 07. 011 STUDY ON BURNINGFUJIAN INFERIOR QUALITY ANTHRACITE IN CFB BOILERS U Jianmin Fuj ian Provincial Longyan Pow er Generation Co Ltd, Longyan 364002, Fujian Province, PRC Abstract:T he Fujian inferior quality anthracite is one of coal sorts w hich are most difficult to burn in the w orld at present. Realization of highly effective and clean combustion of said coal sort is alw ays a difficult technical problem . On the basis of review ing the development of CFB technology , some key technical measures for realizing combustion optimization of Fujian inferior quality anthracite have been put forw ard as follow s: burners under the bed + pulsating coal feed on the bed, using double return- material receivers, enhancing the burning temperature, increasing the height of furnace, low ering the bed pressure, and controlling particle size of the raw coal etc. Key ords:CFB; inferior quality anthracite; energy- saving and emission- reducing; clean combustion ( Vdaf 4% ) 35 t/ h CFB , 1998 , ( ~ 0. 7 mm) ; 2000 75 t/ h CFB , , ; 2004 130 t/ h 90 CFB ; 2005 1 , 1 75 t/ h CFB 135 MW CFB ; 2009 , 5 , , 300 MW CFB , , 168 h 19 , : ( 1966- ) , , 1988 , ,