燃煤电厂粉煤灰综合利用途径适用性分析Applicability analysis of comprehensive utilization of fly ash in coal-fired power plant
潘海斌,魏广鸿,赵志宏,全永胜,姜龙
PAN Haibin,WEI Guanghong,ZHAO Zhihong,QUAN Yongsheng,JIANG Long
摘要(Abstract):
为缓解目前我国西北地区燃煤电厂粉煤灰综合利用低的现状,更好地指导西北地区制定燃煤电厂粉煤灰综合利用政策,以西北地区某燃煤电厂为例,通过检测该厂粉煤灰各项理化性质,结合当地产业和交通运输条件,评估粉煤灰可综合利用的途径和范围。该燃煤电厂粉煤灰可用于当地天然沟壑的填充和砂质土壤的修复,同时应加强土壤环境监测和农产品协同监测;由于锅炉燃烧不完全因此不满足陶粒陶砂的制备条件,可用于制砖等硅酸盐制品,可用于道路路基建设,具有提取炭粒和磁珠的潜力,不具备提取Al2O3和Si O2的潜力,符合放射性要求,使用途径不受反射性制约,可用于环保吸附等新材料的制备,可通过铁路运输至京津冀地区进行部分消纳。通过对西北地区粉煤灰理化性质进行检测和分析,同时制定合理的地方政策引导可指导改善西北地区粉煤灰的综合利用现状。
In order to alleviate the low comprehensive utilization of fly ash in coal-fired power plants in Northwest China,and to better guide the formulation of comprehensive utilization policies of coal-fired power plants in Northwest China,a coal-fired power plant in North China was selected to evaluate the way and scope of comprehensive utilization of fly ash.through the detection of various properties of fly ash,the local industrial and transportation conditions,so as to provide guidance for the comprehensive utilization of fly ash.The fly ash of the coal-fired power plant can be used for filling and soil restoration,but the soil environment monitoring and agricultural products collaborative monitoring should be strengthened.Due to incomplete combustion of the boiler,the fly ash does not meet the preparation conditions of ceramsite,and it can be used for making silicate products such as bricks and for road subgrade construction.It has the potential to extract carbon particles and magnetic beads,but not to extract Al2 O3 and Si O2.It meets the requirements of radioactivity,and the use way is not restricted by reflection.It can be used for the preparation of new materials such as environmental adsorption,and can be transported to Beijing,Tianjin and Hebei province carried by railway. Through testing and analyzing the physical and chemical properties of fly ash in Northwest China,and formulating reasonable local policy guidance can guide and improve the comprehensive utilization status of fly ash in Northwest China.
关键词(KeyWords):
粉煤灰;综合利用;适用性分析;重金属;浸出毒性;经济性
fly ash;comprehensive utilization;applicability analysis;heavy metals;leaching toxicity;economy
基金项目(Foundation):
作者(Author):
潘海斌,魏广鸿,赵志宏,全永胜,姜龙
PAN Haibin,WEI Guanghong,ZHAO Zhihong,QUAN Yongsheng,JIANG Long
DOI: 10.13226/j.issn.1006-6772.SW20110501
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- 粉煤灰
- 综合利用
- 适用性分析
- 重金属
- 浸出毒性
- 经济性
fly ash - comprehensive utilization
- applicability analysis
- heavy metals
- leaching toxicity
- economy