FILTRATION DEVICE

WIPO Patent Application WO/2012/056944

A1

A filtration device (10) includes: a filtration tank (11); a conveyor (13) having a scraper (21); a first filter (40); and a cylindrical second filter (60) that rotates. The inside of the filtration tank (11) is divided into a first filtration tank portion (51) and a second filtration tank portion (52) by the first filter (40). A sludge (S) that has sunk to the bottom of the first filtration tank portion (51) is conveyed toward a sludge discharge portion (16) by a first portion (21a) of the scraper (21). A liquid (Q1) in the first filtration tank portion (51) is filtered by the first filter (40) and flows into the second filtration tank portion (52). A liquid (Q2) in the second filtration tank portion (52) is filtered by the second filter (60) and conveyed to a clean tank (12). The sludge (S) adhered to the second filter (60) is dropped on the first filter (40) and discharged toward the first filtration tank portion (51) by a second portion (21b) of the scraper (21).

WO/2022/142880	FILTERING DEVICE FOR POLYESTER SPINNING OIL PRODUCTION
JP2004073986	WASTE WATER TREATING EQUIPMENT AND WASTE WATER TREATING METHOD
WO/1989/004293	FILTER BAND PRESS WITH PRELIMINARY LIQUID EXTRACTION DEVICE

TASHIRO MINORU (JP)

PCT/JP2011/073944

May 03, 2012

October 18, 2011

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BUNRI INC (JP)
TASHIRO MINORU (JP)

B01D36/02; B01D24/46; B01D29/00; B01D29/62; B01D33/15; B23Q11/00

JPS52160881U	1977-12-06
JP2003326436A	2003-11-18
JP2904334B2	1999-06-14
JP3389126B2	2003-03-24

See also references of EP 2612697A4

KURATA, Masatoshi et al. (JP)
Masatoshi Kurata (JP)

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