JPS5539220A - Control system for pressure type leaf-like filter - Google Patents

Control system for pressure type leaf-like filter

Info

Publication number
JPS5539220A
JPS5539220A JP11135878A JP11135878A JPS5539220A JP S5539220 A JPS5539220 A JP S5539220A JP 11135878 A JP11135878 A JP 11135878A JP 11135878 A JP11135878 A JP 11135878A JP S5539220 A JPS5539220 A JP S5539220A
Authority
JP
Japan
Prior art keywords
shell
filter
warm water
original liquid
filter cake
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.)
Granted
Application number
JP11135878A
Other languages
Japanese (ja)
Other versions
JPS5922570B2 (en
Inventor
Nobuhiko Hamabe
Hiroshi Okumura
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.)
Nippon Light Metal Co Ltd
Original Assignee
Nippon Light Metal Co Ltd
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 Nippon Light Metal Co Ltd filed Critical Nippon Light Metal Co Ltd
Priority to JP53111358A priority Critical patent/JPS5922570B2/en
Publication of JPS5539220A publication Critical patent/JPS5539220A/en
Publication of JPS5922570B2 publication Critical patent/JPS5922570B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Filtration Of Liquid (AREA)

Abstract

PURPOSE: To prevent falling off of filter cake layer formed on the filter leaf surface and to make the automatic control of filtering operation easy, by introducing compressed air in the shell while discharging the sludge original liquid in the filter out of shell and replacing with washing water.
CONSTITUTION: The original liquid discharge valve 15 is shut slowly and the warm water supply valve is opened slowly when the discharge time of sludge original liquid is drawn near to the end. The second control valve 19b is shut and alkali mother liquid contained in red mud, is washed and removed in the state maintaining the red mud in filter cake on the filter leaf, when the warm water is filled up in the shell 10 or pressure in the shell is reached at about more than 1.3kg/cm2. The discharge valve 17 together with the first control valve 19a are opened and compressed air is introduced in the shell 10 and then, the warm water is discharged. After the warm water is discharged, the dividided shell 10b is moved and the filter leaf is exposed and then, the filter cake is washed off with compressed water. Again, the shell 10b is united with the divided shell 10a and filteration of the sludge original liquid is carried out repeatedly.
COPYRIGHT: (C)1980,JPO&Japio
JP53111358A 1978-09-12 1978-09-12 Control method of pressurized leaf-shaped filtration machine Expired JPS5922570B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP53111358A JPS5922570B2 (en) 1978-09-12 1978-09-12 Control method of pressurized leaf-shaped filtration machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP53111358A JPS5922570B2 (en) 1978-09-12 1978-09-12 Control method of pressurized leaf-shaped filtration machine

Publications (2)

Publication Number Publication Date
JPS5539220A true JPS5539220A (en) 1980-03-19
JPS5922570B2 JPS5922570B2 (en) 1984-05-28

Family

ID=14559162

Family Applications (1)

Application Number Title Priority Date Filing Date
JP53111358A Expired JPS5922570B2 (en) 1978-09-12 1978-09-12 Control method of pressurized leaf-shaped filtration machine

Country Status (1)

Country Link
JP (1) JPS5922570B2 (en)

Also Published As

Publication number Publication date
JPS5922570B2 (en) 1984-05-28

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