JPS5478566A - Water removal method for sand filter - Google Patents

Water removal method for sand filter

Info

Publication number
JPS5478566A
JPS5478566A JP14505677A JP14505677A JPS5478566A JP S5478566 A JPS5478566 A JP S5478566A JP 14505677 A JP14505677 A JP 14505677A JP 14505677 A JP14505677 A JP 14505677A JP S5478566 A JPS5478566 A JP S5478566A
Authority
JP
Japan
Prior art keywords
water
tank
drainage
water removal
cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14505677A
Other languages
Japanese (ja)
Inventor
Yutaro Goto
Tatsuo Takechi
Shoichi Suda
Hideji Takeuchi
Yoshinari Fujisawa
Masayuki Odasawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP14505677A priority Critical patent/JPS5478566A/en
Publication of JPS5478566A publication Critical patent/JPS5478566A/en
Pending legal-status Critical Current

Links

Landscapes

  • Filtration Of Liquid (AREA)

Abstract

PURPOSE: To effect quick water removal by installing the drainage in the upper portion of the filtering tank.
CONSTITUTION: After raw water flown from a raw water inlet 1 passes through for the filtration treatment, a drainage 4 for a water removal piping 6 attached with the strainer is installed adjacent to the upper part of a filtration tank 2 which flows the water from a treated water outlet 3. Then, at cleaning process, before the cleaning of the tank 2, the water which is located above the tank 2 does not pass through the tank 2 from the drainage 4 and it is removed outside the filter. By doing so, water removal is finished quickly regardless of the clogging condition of the tank 2. However, air blow from an air inlet 5 after the water removal, fresh water feed from the raw water inlet 1 and the cleaning and drainage from the treated water outlet 3 are effected as usual method.
COPYRIGHT: (C)1979,JPO&Japio
JP14505677A 1977-12-05 1977-12-05 Water removal method for sand filter Pending JPS5478566A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14505677A JPS5478566A (en) 1977-12-05 1977-12-05 Water removal method for sand filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14505677A JPS5478566A (en) 1977-12-05 1977-12-05 Water removal method for sand filter

Publications (1)

Publication Number Publication Date
JPS5478566A true JPS5478566A (en) 1979-06-22

Family

ID=15376351

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14505677A Pending JPS5478566A (en) 1977-12-05 1977-12-05 Water removal method for sand filter

Country Status (1)

Country Link
JP (1) JPS5478566A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5387062A (en) * 1977-01-12 1978-08-01 Kurita Seibi Kk Filter

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5387062A (en) * 1977-01-12 1978-08-01 Kurita Seibi Kk Filter

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