FR2338735A1 - Filter for purifying gases contg. radioactive particles - incorporating flexible impermeable sleeve protecting operator totally during filter changing - Google Patents

Filter for purifying gases contg. radioactive particles - incorporating flexible impermeable sleeve protecting operator totally during filter changing

Info

Publication number
FR2338735A1
FR2338735A1 FR7601320A FR7601320A FR2338735A1 FR 2338735 A1 FR2338735 A1 FR 2338735A1 FR 7601320 A FR7601320 A FR 7601320A FR 7601320 A FR7601320 A FR 7601320A FR 2338735 A1 FR2338735 A1 FR 2338735A1
Authority
FR
France
Prior art keywords
filter
partition
container
radioactive particles
water
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
FR7601320A
Other languages
French (fr)
Other versions
FR2338735B1 (en
Inventor
Francois Lafaix
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.)
SOFILTRA POELMAN
Original Assignee
SOFILTRA POELMAN
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 SOFILTRA POELMAN filed Critical SOFILTRA POELMAN
Priority to FR7601320A priority Critical patent/FR2338735A1/en
Publication of FR2338735A1 publication Critical patent/FR2338735A1/en
Application granted granted Critical
Publication of FR2338735B1 publication Critical patent/FR2338735B1/fr
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/0091—Including arrangements for environmental or personal protection
    • B01D46/0094—Including arrangements for environmental or personal protection against radiation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/0084—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours provided with safety means
    • B01D46/0098—Protecting coverages on the filter which is removed before the filter is used, protection of filter, packaging
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/88—Replacing filter elements
    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/02—Treating gases

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

A filtration appts. for purifying a gas, e.g. air contg. radioactive particles, or noxious gases, incorporates a partition, placed in the path of the gas at right angles to the direction of flow, and in which is a hole surrounded by a projecting rim. A filter, consisting of a rigid frame in which are housed filter elements, is fixed by one of its faces against the downstream face of the partition, over the hole. The filter appts. incorporates a sleeve, open at both ends, made in flexible material impermeable to the gases. One of the ends is fitted on the rim surrounding the hole in the partition. The other end is fitted on the frame of the filter. The dimensions of the frame and the rim on the partition are such as to leave an annular space between them, forming a housing for the sleeve, folded when the filter is in place on the partition. Ensures that the operator is totally protected from of the container from where it is pumped away. The water is de-gassed by continuously evacuating an air space above the level of the mineral/water mixt. at the top of the container. Alternatively the water can be de-gassed before it is pumped to the container. The process is used in the continuous purificn. of granular minerals, esp. quartz sand, and is purely physical, as opposed to the messey chemical processes generally used.
FR7601320A 1976-01-20 1976-01-20 Filter for purifying gases contg. radioactive particles - incorporating flexible impermeable sleeve protecting operator totally during filter changing Granted FR2338735A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7601320A FR2338735A1 (en) 1976-01-20 1976-01-20 Filter for purifying gases contg. radioactive particles - incorporating flexible impermeable sleeve protecting operator totally during filter changing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7601320A FR2338735A1 (en) 1976-01-20 1976-01-20 Filter for purifying gases contg. radioactive particles - incorporating flexible impermeable sleeve protecting operator totally during filter changing

Publications (2)

Publication Number Publication Date
FR2338735A1 true FR2338735A1 (en) 1977-08-19
FR2338735B1 FR2338735B1 (en) 1979-07-06

Family

ID=9168098

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7601320A Granted FR2338735A1 (en) 1976-01-20 1976-01-20 Filter for purifying gases contg. radioactive particles - incorporating flexible impermeable sleeve protecting operator totally during filter changing

Country Status (1)

Country Link
FR (1) FR2338735A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0045696A1 (en) * 1980-08-06 1982-02-10 COMMISSARIAT A L'ENERGIE ATOMIQUE Etablissement de Caractère Scientifique Technique et Industriel Process and apparatus for replacing a filter put in a tank without rupturing the confinement of the contaminated zone
US5192347A (en) * 1990-12-10 1993-03-09 Samsung Electronics Co., Ltd. Filter assembly
EP1928575A2 (en) * 2005-09-30 2008-06-11 Camfil Farr, Inc. Housing assembly with bagging ring
WO2021019132A1 (en) * 2019-07-30 2021-02-04 Shield Filtration device for a controlled-atmosphere installation, corresponding installation and corresponding implementation method

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0045696A1 (en) * 1980-08-06 1982-02-10 COMMISSARIAT A L'ENERGIE ATOMIQUE Etablissement de Caractère Scientifique Technique et Industriel Process and apparatus for replacing a filter put in a tank without rupturing the confinement of the contaminated zone
FR2488436A1 (en) * 1980-08-06 1982-02-12 Commissariat Energie Atomique METHOD AND DEVICE FOR REPLACING A SQUARE FILTER IN A CAISSON WITHOUT BREAKING THE CONFINEMENT OF THE CONTAMINATED AREA
US5192347A (en) * 1990-12-10 1993-03-09 Samsung Electronics Co., Ltd. Filter assembly
EP1928575A2 (en) * 2005-09-30 2008-06-11 Camfil Farr, Inc. Housing assembly with bagging ring
EP1928575A4 (en) * 2005-09-30 2009-11-04 Camfil Farr Inc Housing assembly with bagging ring
US8002867B2 (en) 2005-09-30 2011-08-23 Camfil Farr, Inc. Housing assembly with bagging ring
US8163053B2 (en) 2005-09-30 2012-04-24 Camfil Farr, Inc. Housing assembly with bagging ring
WO2021019132A1 (en) * 2019-07-30 2021-02-04 Shield Filtration device for a controlled-atmosphere installation, corresponding installation and corresponding implementation method
FR3099380A1 (en) * 2019-07-30 2021-02-05 Shield Filtration device for a controlled atmosphere installation, corresponding installation and method of use

Also Published As

Publication number Publication date
FR2338735B1 (en) 1979-07-06

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