JPS5615812A - Sludge withdrawal device for sedimentation tank - Google Patents

Sludge withdrawal device for sedimentation tank

Info

Publication number
JPS5615812A
JPS5615812A JP9277879A JP9277879A JPS5615812A JP S5615812 A JPS5615812 A JP S5615812A JP 9277879 A JP9277879 A JP 9277879A JP 9277879 A JP9277879 A JP 9277879A JP S5615812 A JPS5615812 A JP S5615812A
Authority
JP
Japan
Prior art keywords
sludge
amount
transported
sedimentation tank
increased
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
JP9277879A
Other languages
Japanese (ja)
Inventor
Tsutomu Shiihara
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP9277879A priority Critical patent/JPS5615812A/en
Publication of JPS5615812A publication Critical patent/JPS5615812A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To withdraw automatically a sludge in an amount equal to the amount of the sludge transported from a sedimentation tank into a sludge storage tank by keeping the water level of the sludge storage tank constant.
CONSTITUTION: When sludge in the sludge storage tank 2 is transported by a pump 3, the sludge in an equal amount to the transported sludge is withdrawn into the sludge storage tank 2 by the sludge withdrawal device 4 provided to a sludge trap 1a at the bottom of the sedimentation tank 1. the sludge in polluted water sent to the sedimentation tank 1 is precipitated to the lower part of the tank and then flows through an aperture between an outer cylinder 6 and an inner cylinder 5 into the inner cylinder 5. When the amount of sludge transported by the pump 3 is increased and the water level l2 is lowered, H1 is increased, H1-H2, or h, is increased, and the amount of overflow is correspondingly increased, resulting in an increase in the amount of sludge to be withdrawn. On the other hand, when the amount of sludge transported by the pump 3 dicreases and the water level l2 rises, H1 is decreased, h is also decreased, and the amount of sludge to be withdrawn is correspondingly reduced. Then, when H1 becomes H2, the withdrawal is stopped.
COPYRIGHT: (C)1981,JPO&Japio
JP9277879A 1979-07-20 1979-07-20 Sludge withdrawal device for sedimentation tank Pending JPS5615812A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9277879A JPS5615812A (en) 1979-07-20 1979-07-20 Sludge withdrawal device for sedimentation tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9277879A JPS5615812A (en) 1979-07-20 1979-07-20 Sludge withdrawal device for sedimentation tank

Publications (1)

Publication Number Publication Date
JPS5615812A true JPS5615812A (en) 1981-02-16

Family

ID=14063871

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9277879A Pending JPS5615812A (en) 1979-07-20 1979-07-20 Sludge withdrawal device for sedimentation tank

Country Status (1)

Country Link
JP (1) JPS5615812A (en)

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