公开(公告)号：US5352275A

公开(公告)日：1994-10-04

申请号：US951084

申请日：1992-09-25

申请人： Robert Nath ,  Robert Erickson ,  John Wiley ,  Harry Hebard ,  Michael Miles

发明人： Robert Nath ,  Robert Erickson ,  John Wiley ,  Harry Hebard ,  Michael Miles

IPC分类号： C08L95/00 ,  E01C19/10 ,  F23C99/00 ,  F26B11/02 ,  F26B23/02 ,  F26B25/00 ,  B01D53/04

CPC分类号： F26B25/005 ,  E01C19/1004 ,  E01C19/1036 ,  E01C19/1063 ,  F26B11/028 ,  F26B23/02 ,  F26B25/007 ,  E01C2019/109 ,  E01C2019/1095

摘要： An apparatus and process is provided for the production of hot mix asphalt (HMA) by the treatment of virgin material alone or adding reclaimed or recycled asphalt pavement (RAP) of up to 100% of the HMA comprised of reclaimed asphaltic pavement (RAP). The HMA is first heated in either a parallel or a counter flow rotating drum which is supplied with hot combustion gases generated by a remote low NO.sub.x burner. The temperature of hot gases entering the drum is from about 400.degree. to 2,000.degree. F., and the temperature of gases exiting from the drum is from about 130.degree. to 220.degree. F. The HMA material optionally can be subjected to microwave radiation to raise the material to a final temperature, or optionally to only reorient the dipolar molecules of the material without any measurable heating of the material. The exhaust gas is treated and made environmentally safe. The hot gases exiting from the drum are passed through a knockout box and then through a baghouse having acrylic bags coated with a protective layer of particulate material. The gases exiting the baghouse are passed through an oxidizer to further remove smoke and asphaltic material and at least a portion of the gases from the oxidizer are recycled through a heat exchanger.

摘要翻译： 提供了一种设备和方法，用于通过单独处理原始材料或添加高达100％的由再生沥青路面（RAP）组成的HMA的回收沥青路面（RAP）来生产热拌沥青（HMA）。 HMA首先在平行或逆流旋转鼓中加热，该鼓被供给由远程低NOx燃烧器产生的热燃烧气体。 进入滚筒的热气体的温度为约400°至2000°F，从滚筒离开的气体的温度为约130°至220°F。HMA材料任选地可以进行微波辐射以提高 该材料达到最终温度，或任选地仅重新取向材料的偶极子分子，而无需任何可测量的材料加热。 废气被处理并使其对环境无害。 从滚筒离开的热气体通过敲除箱，然后穿过具有涂覆有颗粒材料保护层的丙烯酸袋的袋屋。 离开袋室的气体通过氧化剂以进一步除去烟和沥青材料，并且来自氧化剂的至少一部分气体通过热交换器再循环。