JPS6420394A - Freeness control apparatus - Google Patents

Freeness control apparatus

Info

Publication number
JPS6420394A
JPS6420394A JP17449587A JP17449587A JPS6420394A JP S6420394 A JPS6420394 A JP S6420394A JP 17449587 A JP17449587 A JP 17449587A JP 17449587 A JP17449587 A JP 17449587A JP S6420394 A JPS6420394 A JP S6420394A
Authority
JP
Japan
Prior art keywords
integration
freeness
value
time
controlling
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
JP17449587A
Other languages
Japanese (ja)
Inventor
Shinji Fujimoto
Takashi Eguchi
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.)
Yokogawa Electric Corp
Original Assignee
Yokogawa Electric 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 Yokogawa Electric Corp filed Critical Yokogawa Electric Corp
Priority to JP17449587A priority Critical patent/JPS6420394A/en
Publication of JPS6420394A publication Critical patent/JPS6420394A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To obtain a freeness controlling device inhibiting the deterioration of the control of the refiner driving motor by controlling the motor with the operating out put obtained from the control calculation of the deviation between the predetermined value given by a time integration technique and the observed value given as time integration of the product of flow signal and freeness signal. CONSTITUTION: A setting mean 123 supplies setpoint signal QFs increasing in a constant gradient in which time integrated value for a batch of time reaches to the SVs (the desired value of the freeness integration), to a controlling mean 122. The operating output MV is transmitted by carrying out the control operation on the deviation of these integration such as production, integration, differentiation or the like, on time integration value of the product FQ of the observed freeness F and the observed flow rate Q and the time integration value of QFs is calculated by the controlling mean 122. Adding machine 13 supplies the operating output MV' obtained by adding the operating output MV and concentration correction output MC, to the motor 6.
JP17449587A 1987-07-13 1987-07-13 Freeness control apparatus Pending JPS6420394A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17449587A JPS6420394A (en) 1987-07-13 1987-07-13 Freeness control apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17449587A JPS6420394A (en) 1987-07-13 1987-07-13 Freeness control apparatus

Publications (1)

Publication Number Publication Date
JPS6420394A true JPS6420394A (en) 1989-01-24

Family

ID=15979490

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17449587A Pending JPS6420394A (en) 1987-07-13 1987-07-13 Freeness control apparatus

Country Status (1)

Country Link
JP (1) JPS6420394A (en)

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