发明授权
- 专利标题: Apparatus for asphaltic concrete hot mix recycling
- 专利标题(中): 沥青混凝土热拌回收设备
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申请号: US831154申请日: 1977-09-07
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公开(公告)号: US4165184A公开(公告)日: 1979-08-21
- 发明人: Philip J. Schlarmann
- 申请人: Philip J. Schlarmann
- 申请人地址: IA Cedar Rapids
- 专利权人: Iowa Manufacturing Company of Cedar Rapids, Iowa
- 当前专利权人: Iowa Manufacturing Company of Cedar Rapids, Iowa
- 当前专利权人地址: IA Cedar Rapids
- 主分类号: E01C19/10
- IPC分类号: E01C19/10 ; B28C5/20 ; B28C5/38 ; B28C5/42
摘要:
A method of hot mix recycling of old asphaltic concrete paving heats the old pavement, after it has been removed and sized, to a temperature below its firing point and heats fresh aggregate to a greater temperature before combining the two and adding new asphalt. The method is embodied in a drum-mixer type of apparatus modified by inserting a smaller drum in the upstream portion of the large drum. The burner fires into the smaller drum into which the fresh aggregate only is introduced while the old mix (plus additional fresh aggregate in certain cases) is introduced into the annular space between the two drums, the fresh aggregate and the old mix being thereafter combined in the large drum, new asphalt added and the mix further heated.
公开/授权文献
- US5363628A Thermal barrier apparatus and process for fabricating same 公开/授权日:1994-11-15
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