JPS55155233A - Density detection at sediment layer bottom in sedimentation tank - Google Patents

Density detection at sediment layer bottom in sedimentation tank

Info

Publication number
JPS55155233A
JPS55155233A JP6350179A JP6350179A JPS55155233A JP S55155233 A JPS55155233 A JP S55155233A JP 6350179 A JP6350179 A JP 6350179A JP 6350179 A JP6350179 A JP 6350179A JP S55155233 A JPS55155233 A JP S55155233A
Authority
JP
Japan
Prior art keywords
sedimentation tank
fluid
density
specific gravity
sediment layer
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
JP6350179A
Other languages
Japanese (ja)
Inventor
Kyoji Ito
Hiroshi Ito
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP6350179A priority Critical patent/JPS55155233A/en
Publication of JPS55155233A publication Critical patent/JPS55155233A/en
Pending legal-status Critical Current

Links

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  • Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)

Abstract

PURPOSE: To make possible accurate detection of the density at the bottom of the sedimentation tank by detecting the density at the bottom of the sedimentation tank based on the false specific gravity between the fluid of the specified fluid tube having the lower end provided closer to the bottom of the sedimentation tank.
CONSTITUTION: A fluid K including oil which is hard to volatalize is stored in the fluid tube 6 communicating to the measuring part composed of a water gauge and a pressure gauge while the lower end of the tube on which a horn-like rubber film 7 forming a diaphragm is fixed is located close to the bottom in the sedimentation tank. As the rise in the density of the sediment layer on the bottom of the tank 1 increases its specific gravity, the false specific gravity with the fluid K varies to displace the film 7 according to the corresponding difference of the pressure. In this manner, the change in the surface of the fluid K in the measuring section 8 permits the accurate detection of the density at the bottom of the sedimentation tank thereby enablig automatic control of sludge discharge through the throttle valve 4 or the like.
COPYRIGHT: (C)1980,JPO&Japio
JP6350179A 1979-05-23 1979-05-23 Density detection at sediment layer bottom in sedimentation tank Pending JPS55155233A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6350179A JPS55155233A (en) 1979-05-23 1979-05-23 Density detection at sediment layer bottom in sedimentation tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6350179A JPS55155233A (en) 1979-05-23 1979-05-23 Density detection at sediment layer bottom in sedimentation tank

Publications (1)

Publication Number Publication Date
JPS55155233A true JPS55155233A (en) 1980-12-03

Family

ID=13231034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6350179A Pending JPS55155233A (en) 1979-05-23 1979-05-23 Density detection at sediment layer bottom in sedimentation tank

Country Status (1)

Country Link
JP (1) JPS55155233A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742718A (en) * 1985-10-29 1988-05-10 Onoda Cement Company, Ltd. Apparatus for measuring particle-size distribution
JPH0287041A (en) * 1988-09-22 1990-03-27 Kyoritsu Denki Kk Measuring method and device for pulp density
KR100829942B1 (en) * 2002-05-29 2008-05-16 주식회사 포스코 Oil measuring device of wastewater sedimentation tank
JP2013148191A (en) * 2012-01-23 2013-08-01 Swing Corp Automatic valve and method of opening/closing the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4742718A (en) * 1985-10-29 1988-05-10 Onoda Cement Company, Ltd. Apparatus for measuring particle-size distribution
JPH0287041A (en) * 1988-09-22 1990-03-27 Kyoritsu Denki Kk Measuring method and device for pulp density
KR100829942B1 (en) * 2002-05-29 2008-05-16 주식회사 포스코 Oil measuring device of wastewater sedimentation tank
JP2013148191A (en) * 2012-01-23 2013-08-01 Swing Corp Automatic valve and method of opening/closing the same

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