JPS5665649A - Control apparatus of centrifugal dehydrator - Google Patents
Control apparatus of centrifugal dehydratorInfo
- Publication number
- JPS5665649A JPS5665649A JP14240979A JP14240979A JPS5665649A JP S5665649 A JPS5665649 A JP S5665649A JP 14240979 A JP14240979 A JP 14240979A JP 14240979 A JP14240979 A JP 14240979A JP S5665649 A JPS5665649 A JP S5665649A
- Authority
- JP
- Japan
- Prior art keywords
- water content
- concn
- chemicals
- sludge
- flow meter
- 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
Links
Landscapes
- Centrifugal Separators (AREA)
Abstract
PURPOSE: To make it possible to lower a concn. of a separated liquid to below a prescribed value as well as to lower a water content of a dehydrated sludge to below an objective value by assembling a flow meter of a separated liquid into an apparatus for adding chemicals to a concentrated sludge and centrifugally separating the same to continuously operate a water content of a dehydrated sludge.
CONSTITUTION: A concentrated sludge in a storage tank 1 is supplied through a concn. meter 2, a pump 3, a flow meter 4, a pump 7 and a flow meter 8 and mixed with chemicals for increasing dehydration effect in a dissolving tank 6 and separated in a centrifugal dehydrator 10. The concn. of a separated liquid is measured by a concn. meter 20 and treated along with an objective value in a control portion 25. On the other hand, measured values of a flow meter 32 of a separated liquid and meters 20, 4, 2 are provided to an operating portion 35 and a water content of a dehydrated sludge is obtained by the formula. This water content and an objective value of a setting portion 34 are compared. Only one of contact points of a switch portion 40 is closed and, for example, an operated output of a water content control portion 39 is applied to a conversion portion 27a through contact points 40a, 26c to obtain an adding ratio of chemicals and an operating output 30 of a pump 7 is obtained through a chemicals control portion 29. A sludge control portion 32 is also operated similarily.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14240979A JPS5665649A (en) | 1979-11-02 | 1979-11-02 | Control apparatus of centrifugal dehydrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14240979A JPS5665649A (en) | 1979-11-02 | 1979-11-02 | Control apparatus of centrifugal dehydrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5665649A true JPS5665649A (en) | 1981-06-03 |
Family
ID=15314662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14240979A Pending JPS5665649A (en) | 1979-11-02 | 1979-11-02 | Control apparatus of centrifugal dehydrator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5665649A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61238353A (en) * | 1985-04-15 | 1986-10-23 | Kurita Water Ind Ltd | Concentrator |
| JPS62168560A (en) * | 1986-01-17 | 1987-07-24 | Ishikawajima Harima Heavy Ind Co Ltd | Method for controlling concentration in centrifugal concentrator |
| JPS63130156A (en) * | 1986-11-19 | 1988-06-02 | Hitachi Ltd | Solid-liquid separation method |
| JPH04371244A (en) * | 1991-06-21 | 1992-12-24 | Nishihara Environ Sanit Res Corp | Controller for centrifugal separator |
-
1979
- 1979-11-02 JP JP14240979A patent/JPS5665649A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61238353A (en) * | 1985-04-15 | 1986-10-23 | Kurita Water Ind Ltd | Concentrator |
| JPS62168560A (en) * | 1986-01-17 | 1987-07-24 | Ishikawajima Harima Heavy Ind Co Ltd | Method for controlling concentration in centrifugal concentrator |
| JPS63130156A (en) * | 1986-11-19 | 1988-06-02 | Hitachi Ltd | Solid-liquid separation method |
| JPH04371244A (en) * | 1991-06-21 | 1992-12-24 | Nishihara Environ Sanit Res Corp | Controller for centrifugal separator |
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