公开(公告)号：US4477250A

公开(公告)日：1984-10-16

申请号：US473043

申请日：1983-03-07

申请人： David F. Brashears ,  Emanuel J. Elliott ,  Theodore G. Butler

发明人： David F. Brashears ,  Emanuel J. Elliott ,  Theodore G. Butler

IPC分类号： E01C19/10 ,  F27B19/04 ,  F27D1/16 ,  B02C11/08 ,  E01C19/45

CPC分类号： E01C19/1063 ,  E01C19/1036 ,  F27B19/04 ,  E01C2019/1095

摘要： An asphalt recycling system and process are incorporated into an existing batch type asphalt plant. The existing asphalt plant has an aggregate dryer and air discharge ducts connected to a filtering system. A recycling dryer has input ducts connected to the existing aggregate dryer discharge ducts and output ducts connected from the recycling dryer back to the existing ducts to the filtering system. A recycle feeder bin for feeding reclaimed asphalt pavement to the recycle dryer is connected to the recycle dryer. A recycle booster burner is operatively connected to the recycle dryer through the input duct to the dryer for providing additional heat to the recycle dryer so that the waste heat from the existing aggregate dryer and the booster burner provide a predetermined heat to the recycle dryer for heating the asphalt material. A recycling storage bin or silo is connected to receive the heated recycled asphalt from the recycle dryer. A hammermill or other means may be provided for breaking up the old asphaltic materials, such as old paving materials prior to entry of the material into the recycle dryer. Dampers are provided for directing heated gases from the existing batch type asphalt plant to the recycling system, as needed, and temperature controls are utilized to control the recycled booster burner to provide the right combination of existing waste and added heat for the recycled dryer. The stored recycled asphalt materials may be fed to an existing plant batching tower for batching and loading into vehicles.

摘要翻译： 沥青回收系统和工艺被并入现有的批式沥青设备中。 现有的沥青设备具有连接到过滤系统的集料干燥器和排气管。 回收干燥器具有连接到现有的聚集干燥器排放管道的输入管道和从再循环干燥器连接到现有管道到过滤系统的输出管道。 用于将再生沥青路面供给回收干燥器的再循环进料仓连接到循环干燥器。 循环加压燃烧器通过输入管道可操作地连接到再循环干燥器到干燥器，用于向再循环干燥器提供额外的热量，使得来自现有聚集干燥器和助燃燃烧器的废热为再循环干燥器提供预定的热量用于加热 沥青材料。 连接回收储存箱或料仓以从循环干燥器接收加热的再循环沥青。 可以提供锤磨机或其他装置，用于在将材料进入循环干燥器之前分解旧的沥青材料，例如旧的铺路材料。 根据需要，提供阻尼器用于将加热的气体从现有的分批式沥青设备引导到回收系统，并且使用温度控制来控制再循环的助燃燃烧器，以便为再循环的干燥器提供正确的现有废物和加热的组合。 存储的再循环沥青材料可以被供给到现有的工厂配料塔中，用于批量和装载到车辆中。