公开(公告)号：EP0586399A4

公开(公告)日：1994-04-27

申请号：EP92908658

申请日：1992-03-20

申请人： ADVANCED ENVIRONMENTAL RECYCLING TECHNOLOGIES INC

发明人： BROOKS, JOE, G. ,  GOFORTH, BILLY, D. ,  GOFORTH, CHARLES, L. ,  BROOKS, DOUGLAS, J.

IPC分类号： B29B17/00 ,  B03B1/04 ,  B03B5/28 ,  B03B9/06 ,  B29B17/02 ,  B29B17/04 ,  B29K105/26 ,  D21B1/02 ,  D21B1/32 ,  D21C5/02 ,  D21B1/08

CPC分类号： D21B1/322 ,  B03B1/04 ,  B03B5/28 ,  B03B9/061 ,  B29B17/02 ,  B29B2017/0244 ,  B29B2017/0251 ,  B29B2017/0484 ,  B29B2017/0488 ,  B29K2023/06 ,  B29K2105/065 ,  B29K2705/00 ,  B29K2711/12 ,  B29L2007/008 ,  B29L2009/00 ,  B29L2031/7158 ,  D21B1/026 ,  Y02W30/524 ,  Y02W30/622 ,  Y02W30/625 ,  Y02W30/646

摘要： A method for reclaiming plastic from plastic waste material, including hydropulper or polymeric film and contaminants such as cellulosic fiber, adhesive labels, paper, dirt, or organic material. The plastic waste material is reduced in size to particles having a maximum dimension ranging between about 1 inch and 8 inches. A portion of the contaminants, including cellulosic fiber, is mechanically separated from the plastic waste. Another portion of the contaminants is separated from the plastic by washing. The particle size of the plastic is further reduced to a maximum dimension of about 1/2 inch while in a wet slurry. Flotation with agitation further separates cellulosic fiber from plastic. The plastic is dewatered and dried to a moisture content of less than about 10 weight percent. The dried plastic is then rolled into pellets in a controlled low heat pelletizer.

摘要翻译： 从废塑料回收塑料的方法，包括水力碎浆机或聚合物薄膜和污染物，如纤维素纤维，不干胶标签，纸张，污垢或有机材料。 塑料废料的尺寸减小到最大尺寸在约1英寸和8英寸之间的颗粒。 一部分污染物，包括纤维素纤维，与塑料废物机械分离。 另一部分污染物通过清洗与塑料分离。 在湿浆中时，塑料的颗粒尺寸进一步减小到约1/2英寸的最大尺寸。 搅拌浮选进一步将纤维素纤维与塑料分开。 将塑料脱水并干燥至含水量小于约10重量％。 然后将干燥的塑料在受控的低热造粒机中滚压成粒料。