Process and apparatus for cleaning slag from garbage...

Details Process and apparatus for cleaning slag from garbage... Process and apparatus for cleaning slag from garbage...

B - Operations, Transporting

03

B

209/3

B03B 9/04 (2006.01) B09B 3/00 (2006.01)

Patent

CA 1330654

Abstract After quenching, the slag that is generated in garbage and waste incinerators is subjected to an additional washing process in a washer unit (2). During the wash process, harmful substances such as chlorides and heavy metals, for example, are washed out of the slag. The subsequent separation of the water from the slag is effected in a separator system (4) and in a drying system (7). The slag is dried to a maximum water content of 30% and the fine components with a grain size of less than 2 mm are removed from the slag either during or after the drying process. These fine components and the wash water sludge contain practically all the soluble harmful substances, and must be processed or dumped while observing special precautions. The remaining clean slag is practically free of soluble harmful substances and can be used as construction material. Figure 1.

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