FR2275239B1 - - Google Patents

Info

Publication number: FR2275239B1
Authority: FR; France
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.): Expired

Application number

FR7421558A

Other languages

Other versions

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.)

Societe Nationale des Poudres et Explosifs

Original Assignee

Societe Nationale des Poudres et Explosifs

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.)

1974-06-21

Filing date

1974-06-21

Publication date

1978-08-11

1974-06-21 Application filed by Societe Nationale des Poudres et Explosifs filed Critical Societe Nationale des Poudres et Explosifs

1974-06-21 Priority to FR7421558A priority Critical patent/FR2275239A1/en

1976-01-16 Publication of FR2275239A1 publication Critical patent/FR2275239A1/en

1978-08-11 Application granted granted Critical

1978-08-11 Publication of FR2275239B1 publication Critical patent/FR2275239B1/fr

Status Granted legal-status Critical Current

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/44—Regenerating the filter material in the filter
- B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
- B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Paper (AREA)

FR7421558A 1974-06-21 1974-06-21 Rotary drum filter sepg. solids from suspensions - with periodic scraper movement into precoat giving longer precoat life Granted FR2275239A1 (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
FR7421558A FR2275239A1 (en)	1974-06-21	1974-06-21	Rotary drum filter sepg. solids from suspensions - with periodic scraper movement into precoat giving longer precoat life

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
FR7421558A FR2275239A1 (en)	1974-06-21	1974-06-21	Rotary drum filter sepg. solids from suspensions - with periodic scraper movement into precoat giving longer precoat life

Publications (2)

Publication Number	Publication Date
FR2275239A1 FR2275239A1 (en)	1976-01-16
FR2275239B1 true FR2275239B1 (en)	1978-08-11

Family

ID=9140339

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
FR7421558A Granted FR2275239A1 (en)	1974-06-21	1974-06-21	Rotary drum filter sepg. solids from suspensions - with periodic scraper movement into precoat giving longer precoat life

Country Status (1)

Country	Link
FR (1)	FR2275239A1 (en)

1974
- 1974-06-21 FR FR7421558A patent/FR2275239A1/en active Granted

Also Published As

Publication number	Publication date
FR2275239A1 (en)	1976-01-16

Publication	Publication Date	Title
AU495883B2 (en)	1977-03-03
FR2275239B1 (en)	1978-08-11
AR198563A1 (en)	1974-06-28
AU7463174A (en)	1976-04-29
AU479523A (en)	1975-07-10
AU479624A (en)	1975-08-28
AU479683A (en)	1975-07-10
AU480470A (en)	1975-01-30
AU481065A (en)	1974-09-12
AU481340A (en)	1975-10-02
AU481580A (en)	1975-09-04
AU481825A (en)	1975-03-13
AU7504272A (en)	1975-02-13
BE827113A (en)	1975-07-16
BE836340A (en)	1976-04-01
BG19609A2 (en)	1975-10-10
BG19619A1 (en)	1975-10-10
BG19638A1 (en)	1975-10-10
BG19680A1 (en)	1975-10-10
BG19690A1 (en)	1975-10-10
BG19739A1 (en)	1975-10-10
BG19774A1 (en)	1975-10-10
BG19962A1 (en)	1975-10-30
BG19987A1 (en)	1975-10-30
BG19990A1 (en)	1977-05-20

Legal Events

Date	Code	Title	Description
1986-06-27	TP	Transmission of property