化工学报
化工學報
화공학보
JOURNAL OF CHEMICAL INDUSY AND ENGINEERING (CHINA)
2014年
7期
2443-2453
,共11页
煤矸石%综合利用%产业化%废物处理%回收%可持续性
煤矸石%綜閤利用%產業化%廢物處理%迴收%可持續性
매안석%종합이용%산업화%폐물처리%회수%가지속성
coal gangue%comprehensive utilization%industrialization%waste treatment%recovery%sustainability
综合分析了我国在煤矸石综合利用方面的工业化进展。我国循环流化床煤矸石发电技术已引领国际先进发展水平,已开始发展超临界和超超临界煤矸石发电技术;全煤矸石烧结砖装备技术也达到国际先进水平,单套设备生产能力达到年消纳百万吨煤矸石;大规模利用煤矸石进行充填采空区和塌陷区、筑基修路、土地复垦等成为煤矸石无害化处理的主要方式。煤矸石的综合处理能力超过4亿吨/年。然而相对于煤矸石巨大的产生量,现有利用途径仍难以满足其处理需求。高附加值利用是煤矸石综合利用的重要补充,将成为煤矸石综合利用的发展方向。基于目前高附加值利用的发展现状,构建了煤矸石高附加值利用的循环经济路线,对于进一步提高其资源利用水平和利用率有重要意义。
綜閤分析瞭我國在煤矸石綜閤利用方麵的工業化進展。我國循環流化床煤矸石髮電技術已引領國際先進髮展水平,已開始髮展超臨界和超超臨界煤矸石髮電技術;全煤矸石燒結磚裝備技術也達到國際先進水平,單套設備生產能力達到年消納百萬噸煤矸石;大規模利用煤矸石進行充填採空區和塌陷區、築基脩路、土地複墾等成為煤矸石無害化處理的主要方式。煤矸石的綜閤處理能力超過4億噸/年。然而相對于煤矸石巨大的產生量,現有利用途徑仍難以滿足其處理需求。高附加值利用是煤矸石綜閤利用的重要補充,將成為煤矸石綜閤利用的髮展方嚮。基于目前高附加值利用的髮展現狀,構建瞭煤矸石高附加值利用的循環經濟路線,對于進一步提高其資源利用水平和利用率有重要意義。
종합분석료아국재매안석종합이용방면적공업화진전。아국순배류화상매안석발전기술이인령국제선진발전수평,이개시발전초림계화초초림계매안석발전기술;전매안석소결전장비기술야체도국제선진수평,단투설비생산능력체도년소납백만둔매안석;대규모이용매안석진행충전채공구화탑함구、축기수로、토지복은등성위매안석무해화처리적주요방식。매안석적종합처리능력초과4억둔/년。연이상대우매안석거대적산생량,현유이용도경잉난이만족기처리수구。고부가치이용시매안석종합이용적중요보충,장성위매안석종합이용적발전방향。기우목전고부가치이용적발전현상,구건료매안석고부가치이용적순배경제로선,대우진일보제고기자원이용수평화이용솔유중요의의。
Coal gangue as one of the largest industrial solid wastes in China brings about very serious environmental, social and economic problems. Comprehensive utilization of coal gangue is of importance to sustainable development of society and economy. China has made great progress in comprehensive utilization of coal gangue in the latest 40 years since the 1960-1970’s. Circulating fluidized bed (CFD) power generation using coal gangue is at the advanced level of the world. The equipment and technology of sintered brick manufactured from coal gangue have also reached the world’s advanced level. A single facility reaches million tons of coal gangue consumption annually. Large amounts of coal gangue as the major harmless methods are used in backfilling, road paving and land reclamation. The comprehensive treatment capacity of coal gangue increases significantly and exceeds 400 Mt annually at present. Due to large production of coal gangue, however, the existing utilizations cannot meet the demand of coal gangue treatment. Value-added utilization as one of the important supplementary ways will become the development direction of comprehensive utilization of coal gangue. It is of significance to further improve the utilization level and efficiency by establishing the circular economy routes of value-addedutilization proposed in this paper based on the development situation of value-added utilization.