城市生活垃圾卧式气流分选特性研究  

STUDY ON CHARACTERISTICS OF THE HORIZONTAL AIR SEPARATION FOR MUNICIPAL SOLID WASTE

作　　者：李兵[1] 董志颖[1] 赵由才[2] 陈宇辉[1] 朱建林[1] 

机构地区：[1]宁波大学建筑工程与环境学院,浙江宁波315211 [2]同济大学污染控制与资源化研究国家重点实验室,上海200092

出　　处：《环境工程》2012年第3期96-101,共6页Environmental Engineering

基　　金：国家科技支撑计划课题(2008BAC46B06);浙江省科技厅项目(2009C33065);宁波市科技局项目(2010C50022)

摘　　要：利用处理能力100 kg/h的卧式气流分选机开展生活垃圾中塑料分选实验。实验结果表明:进风角度为10°、15°时,分别对应存在>8.5 m/s、7.7～9.3 m/s的风速范围,使塑料的纯度和分选效率达到80%以上;利用Fluent软件模拟,结果表明:进风角度>15°时,分选机内气流复杂,塑料纯度和分选效率的波动性大,仅存在较窄的风速范围可使总纯度和分选效率同时达到80%以上。A horizontal air-separator with a separation capacity of 100 kg MSW （municipal solid waste） per hour was used to separate out plastics in MSW. It is found that 80% of plastic can be separated from the MSW and the purity of plastic in the plastic bin can also be above 80% with 10° , 15° of air inlet angle under conditions of air-inflow velocity being over 8.5 m/s, 7.7 - 9. 3 m/s, respectively. Simulated results by Fluent showed that air pressure varieties were comparatively complicated with above 15° of air inlet angle in spite of good air velocity gradients, which resulting in above 80% of plastics purity and separation efficiency with narrow ranges of air inflow velocities

关 键 词：城市生活垃圾 纯度 分选效率 卧式气流机 塑料 

分 类 号：X799.3[环境科学与工程—环境工程]