Analysis on the current situation of collaborative disposal of urban household waste by cement kilns
This paper introduces the current situation of collaborative disposal of urban household waste by cement kilns.The technology of collaborative disposal of urban household waste in cement kilns can be divioled into two basic principales:the first type is an incineration system+cement kiln collaborative disposal system.After simple pre-treatment such as dehydration and crushing,household waste is incinerated using newly added incineration equipment(vaporization furnace,hot plate furnace,mechani-cal grate furnace,etc.).The flue gas generated by combustion or gasification of combustible materials enters the cement kiln pre-calciner to heat raw meal,and the non combustible parts are used as alternative raw materials after iron and aluminum removal.The second type is a comprehensive pretreatment system+cement kiln collaborative disposal system.After comprehensive pre-treat-ment such as dehydration,crushing,and screening,the combustible materials are directly sent to the cement kiln precalciner for combustion as waste derived fuel(RDF).The non combustible materials replace the raw materials and enter the raw mill of the cement kiln system.An analysis on the practice of two types of cement kilns for collaborative disposal of household waste in China was conducted.
万方数据
维普
