专利名称：Method and apparatus for recovering and
recycling sludge and product thereof
发明人：August M. Nigro申请号：US09/231012申请日：19990114公开号：US06146453A公开日：20001114
摘要：A method by which dredged sludge is used to make a new asphalt composition.The moisture content of the sludge is reduced by allowing the sludge to drain through afilter. The reduced-moisture-content sludge is heated and combined with asphaltmixture. The respective flow rates of the reduced-moisture-content sludge and theasphalt mix is controlled via a computer controller. The moisture-reducing step mayinclude at least one of the steps of stirring, mixing, churning, and turning the sludge, andmay also include blowing air onto the sludge. The invention also includes a system forperforming the method. The system includes a drainage area, a filter at least partiallysurrounding the drainage area, a first bin adapted to receive sludge from the drainagearea, a conveyor having an input at the drainage area and an output at the first bin, and arotating drum in communication with the first bin for receiving a flow of the sludge fromthe first bin. The invention also includes the road paving material made by the abovemethod.
申请人：NIGRO; AUGUST M.
代理机构：Levisohn, Lerner, Berger & Langsam
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