JPS5534106A - Operation controlling method for settled sand scraper - Google Patents
Operation controlling method for settled sand scraperInfo
- Publication number
- JPS5534106A JPS5534106A JP10558978A JP10558978A JPS5534106A JP S5534106 A JPS5534106 A JP S5534106A JP 10558978 A JP10558978 A JP 10558978A JP 10558978 A JP10558978 A JP 10558978A JP S5534106 A JPS5534106 A JP S5534106A
- Authority
- JP
- Japan
- Prior art keywords
- settled
- sand
- pool
- amt
- separated
- 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
Abstract
PURPOSE: To efficiently work a sand settling pool according to the title method by calculating the amt. of sand settled in the pool with relatively high accuracy and by scraping the settled sand at the appropriate time.
CONSTITUTION: Signals detected with inflow water turbidimeter 4 and outflow water turbidimeter 7 are subtracted with adding and subtracting operator 10 to detect the ratio of suspended solid particles settled and separated in sand settling pool 2. This result and a signal of flow meter 8 are inputted into multiplying and dividing operator 11, where they are multiplied to calculate the amt. of solid particles settled and separated in pool 2. This value is integrated with preset counter 12, and when the integrated value reaches a prescribed value, counter 12 outputs instructions to start scraping of settled sand scraper control circuit 13, thus starting settled sand scraper 5.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10558978A JPS5534106A (en) | 1978-08-31 | 1978-08-31 | Operation controlling method for settled sand scraper |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10558978A JPS5534106A (en) | 1978-08-31 | 1978-08-31 | Operation controlling method for settled sand scraper |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5534106A true JPS5534106A (en) | 1980-03-10 |
Family
ID=14411677
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10558978A Pending JPS5534106A (en) | 1978-08-31 | 1978-08-31 | Operation controlling method for settled sand scraper |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5534106A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0218448U (en) * | 1988-07-22 | 1990-02-07 |
-
1978
- 1978-08-31 JP JP10558978A patent/JPS5534106A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0218448U (en) * | 1988-07-22 | 1990-02-07 |
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