JPS5748319A - Diatomaceous earth treatment of precoated filter - Google Patents

Diatomaceous earth treatment of precoated filter

Info

Publication number
JPS5748319A
JPS5748319A JP55123191A JP12319180A JPS5748319A JP S5748319 A JPS5748319 A JP S5748319A JP 55123191 A JP55123191 A JP 55123191A JP 12319180 A JP12319180 A JP 12319180A JP S5748319 A JPS5748319 A JP S5748319A
Authority
JP
Japan
Prior art keywords
diatomaceous earth
filter
solvent
filter cake
lowered
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
JP55123191A
Other languages
Japanese (ja)
Inventor
Hideo Tsukamoto
Shinji Kato
Yasuhiro Tsubaki
Masataka Mizutani
Hayami Nagano
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP55123191A priority Critical patent/JPS5748319A/en
Publication of JPS5748319A publication Critical patent/JPS5748319A/en
Pending legal-status Critical Current

Links

Landscapes

  • Filtration Of Liquid (AREA)

Abstract

PURPOSE: To availably use diatomaceous earth by a method wherein, when filter capacity of a filter cake is lowered, said filter cake is collapsed to form diatomaceous earth powder and the resultant diatomaceous earth powder is stirred, mixed and allowed to stand in a filter case to discharge inferior diatomaceous earth in order to replace with new diatomaceous earth.
CONSTITUTION: When a solvent is filtered and impurities therein are adhered to a surface of a filter cake 29 and filtering capacity is lowered, said cake is peeled by vibration and new diatomaceous earth is supplied along with the solvent to form the filter cake 29 again by precoating. When this operation is repeated, because a part of diatomaceous earth is clogged and filtering capacity is lowered to a large extent, a filter grid 27 is pushed down and said filter cake 29 is collapsed to be formed into a diatomaceous earth powder and the resultant diatomaceous earth powder, impurities, the solvent are stirred and mixed by a stirrer 30 in the filter case and allowed to stand for a definite time. Clogged diatomaceous earth or the like is floated and diatomaceous earth free from clogging and the solvent are absorbed and precipitated. Bad diatomaceous earth is treated in a distillation apparatus to recover the solvent and the residue is discharged.
COPYRIGHT: (C)1982,JPO&Japio
JP55123191A 1980-09-04 1980-09-04 Diatomaceous earth treatment of precoated filter Pending JPS5748319A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55123191A JPS5748319A (en) 1980-09-04 1980-09-04 Diatomaceous earth treatment of precoated filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55123191A JPS5748319A (en) 1980-09-04 1980-09-04 Diatomaceous earth treatment of precoated filter

Publications (1)

Publication Number Publication Date
JPS5748319A true JPS5748319A (en) 1982-03-19

Family

ID=14854439

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55123191A Pending JPS5748319A (en) 1980-09-04 1980-09-04 Diatomaceous earth treatment of precoated filter

Country Status (1)

Country Link
JP (1) JPS5748319A (en)

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