Method for removing a filter cake
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United States of America Patent
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-
Jan 12, 1993
Grant Date -
N/A
app pub date -
Nov 18, 1991
filing date -
Nov 19, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a method for removing a filter cake from a liquid-saturated suction surface, when the liquid in the creation of the filter cake is sucked through the filter surface of the filter element. According to the invention, on the filter surface of the filter element (1) there is formed a liquid film (3) by means of reversed pressure effected through the filter element (1). Essentially immediately after the creation of the liquid film, at least one gas blowing is directed to the filter surface of the filter element (1) in order to detach the filter cake (2) located on the filter surface.
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