JPS5658600A - Freezed and melted sludge tank - Google Patents

Freezed and melted sludge tank

Info

Publication number
JPS5658600A
JPS5658600A JP13292479A JP13292479A JPS5658600A JP S5658600 A JPS5658600 A JP S5658600A JP 13292479 A JP13292479 A JP 13292479A JP 13292479 A JP13292479 A JP 13292479A JP S5658600 A JPS5658600 A JP S5658600A
Authority
JP
Japan
Prior art keywords
sludge
concn
tank
sensor
pipe
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
JP13292479A
Other languages
Japanese (ja)
Inventor
Kiyoshi Sugiura
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.)
Fuji Electric Co Ltd
Original Assignee
Fuji Electric Co 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 Fuji Electric Co Ltd filed Critical Fuji Electric Co Ltd
Priority to JP13292479A priority Critical patent/JPS5658600A/en
Publication of JPS5658600A publication Critical patent/JPS5658600A/en
Pending legal-status Critical Current

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  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To enhance the dehydration efficiency of a dehydrator by setting a sludge sensor at a predetermined level of the supernatant liq. discharge pipe of a sludge tank to open the the pipe only when the detected sludge concn. is below a set value.
CONSTITUTION: In a couple of freezing and melting vessels 10, 12 freezing and melting are carried out alternately, and melted sludge and water are introduced into freezed and melted sludge tank 14 through ducts 16, 18. A sludge part settled in tank 14 is gathered in sludge pit 26 with sludge scraper 26 and fed to a dehydrator through duct 30 with sludge pump 28. On the other hand, the supernatant liq. is discharged through supernatant liq. discharge pipe 32. Sludge sensor 34 is placed near the opening of pipe 32 in tank 14. Sensor 34 detects the concn. of sludge and opens supernatant liq. drawing valve 38 only when the concn. is below a set sludge concn. Thus, the sludge concn. of the sludge part to be dehydrated is raised, resulting in efficient dehydration. The positions of the opening of pipe 32 and sensor 34 can be altered arbitrarily.
COPYRIGHT: (C)1981,JPO&Japio
JP13292479A 1979-10-17 1979-10-17 Freezed and melted sludge tank Pending JPS5658600A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13292479A JPS5658600A (en) 1979-10-17 1979-10-17 Freezed and melted sludge tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13292479A JPS5658600A (en) 1979-10-17 1979-10-17 Freezed and melted sludge tank

Publications (1)

Publication Number Publication Date
JPS5658600A true JPS5658600A (en) 1981-05-21

Family

ID=15092686

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13292479A Pending JPS5658600A (en) 1979-10-17 1979-10-17 Freezed and melted sludge tank

Country Status (1)

Country Link
JP (1) JPS5658600A (en)

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