Process and device for processing residues from refuse incinerators
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United States of America Patent
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-
Sep 1, 1992
Grant Date -
N/A
app pub date -
Oct 1, 1990
filing date -
Jun 16, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The slag that is formed in garbage and waste incinerators is cleaned of coarse material and iron directly after the slag outlet (1) from the incinerator. Separation into two fractions takes place after coarse cleaning, in a fractionating unit (6). One of the fractions contains all the particles that are smaller than 2 mm. At the same time, the dust is separated by a suction system (14). Dust and particles smaller than 2 mm contain practically all the soluble harmful substances and have to be processed and stored observing special precautions, or dumped. The remaining, cleaned slag is dry, and can be used as construction material. The process and the apparatus avoid the use of a water bath, so that no energy is needed for drying.
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