JPS5581796A - Operating method for pressure type sludge dehydrator - Google Patents

Operating method for pressure type sludge dehydrator

Info

Publication number
JPS5581796A
JPS5581796A JP15491978A JP15491978A JPS5581796A JP S5581796 A JPS5581796 A JP S5581796A JP 15491978 A JP15491978 A JP 15491978A JP 15491978 A JP15491978 A JP 15491978A JP S5581796 A JPS5581796 A JP S5581796A
Authority
JP
Japan
Prior art keywords
liquid level
sludge
filtrate
dehydrator
tank
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
JP15491978A
Other languages
Japanese (ja)
Inventor
Atsushi Omoto
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP15491978A priority Critical patent/JPS5581796A/en
Publication of JPS5581796A publication Critical patent/JPS5581796A/en
Pending legal-status Critical Current

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  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To dehydrate uniformly cake by shortening the time of compression by the procedure in which the liquid level of filtrate tank for dehydrator is measured, the varied amount of liquid is calculated, the value is compared with the liquid level changing rate set values for sludge pressing and compression processes, and when they coincide with each other, sludge is advanced to the next process.
CONSTITUTION: Concentrated sludge in the mixing tank 1 is dehydrated by the dehydrator 3, and the filtrate is introduced into the filtrate tank 4. When reaching a hydrating rate, little change occurs in the relation between the times T1 and T2 of the pressing and compression processes of the dehydrator 3 and the liquid level 1, and the amount of filtrate generated becomes small or Δl. The liquid level of the filtrate tank 4 is measured by the liquid level meter 6, the varied amount of liquid level is calculated by an arithmetic processer, and when the value coincides with the liquid level changing rate Δl/ΔT, set up previously, a command is sent out to delivery sludge to the next process. Thus, each process can be operated with good efficiency, hydrating time can be shortened, and at the same time the cake can be dehydrated uniformly.
COPYRIGHT: (C)1980,JPO&Japio
JP15491978A 1978-12-18 1978-12-18 Operating method for pressure type sludge dehydrator Pending JPS5581796A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15491978A JPS5581796A (en) 1978-12-18 1978-12-18 Operating method for pressure type sludge dehydrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15491978A JPS5581796A (en) 1978-12-18 1978-12-18 Operating method for pressure type sludge dehydrator

Publications (1)

Publication Number Publication Date
JPS5581796A true JPS5581796A (en) 1980-06-20

Family

ID=15594813

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15491978A Pending JPS5581796A (en) 1978-12-18 1978-12-18 Operating method for pressure type sludge dehydrator

Country Status (1)

Country Link
JP (1) JPS5581796A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104680A (en) * 1981-12-15 1983-06-22 ヤンマー農機株式会社 Automatic control device for oscillating sorter
JPS59127609A (en) * 1983-01-07 1984-07-23 Kubota Ltd Method for supplying sludge of press dehydrator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58104680A (en) * 1981-12-15 1983-06-22 ヤンマー農機株式会社 Automatic control device for oscillating sorter
JPS59127609A (en) * 1983-01-07 1984-07-23 Kubota Ltd Method for supplying sludge of press dehydrator

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