FR2207745A1 - Granular gas filter - with narrow annular beds stacked cleaned by double reverse impulses - Google Patents

Granular gas filter - with narrow annular beds stacked cleaned by double reverse impulses

Info

Publication number
FR2207745A1
FR2207745A1 FR7242273A FR7242273A FR2207745A1 FR 2207745 A1 FR2207745 A1 FR 2207745A1 FR 7242273 A FR7242273 A FR 7242273A FR 7242273 A FR7242273 A FR 7242273A FR 2207745 A1 FR2207745 A1 FR 2207745A1
Authority
FR
France
Prior art keywords
beds
cleaned
bed
narrow annular
stacks
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
FR7242273A
Other languages
French (fr)
Other versions
FR2207745B1 (en
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.)
DUCON CO
Original Assignee
DUCON CO
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
Priority to BE792055D priority Critical patent/BE792055A/en
Application filed by DUCON CO filed Critical DUCON CO
Priority to FR7242273A priority patent/FR2207745A1/en
Publication of FR2207745A1 publication Critical patent/FR2207745A1/en
Application granted granted Critical
Publication of FR2207745B1 publication Critical patent/FR2207745B1/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
    • B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)

Abstract

Narrow annular filter beds, e.g. of No. 1/2 sand, are stacked vertically, with pref. slit perforated screen peripheral inlets at tops, and similar screen outlets at bottoms; to clean e.g. inert gases from steel or chemical processes, which are introduced to a chamber surrounding several such stacks, and after passing through beds exit from a chamber below a conical partition supporting stack bases. Beds are cleaned by double reversed jet impulses introduced axially to stacks, to produced a flow rate twice that required for fluidization; use of narrow beds overcomes problems of uneven bed depth, due to angle of repose of granular powder falling back to form bed after cleaning stage. To deal with particles, e.g. of TiO2, likely to clog bed, tops of beds may be sloped inwards at about 30 degrees to peripheral wall of stack.
FR7242273A 1971-09-28 1972-11-28 Granular gas filter - with narrow annular beds stacked cleaned by double reverse impulses Granted FR2207745A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
BE792055D BE792055A (en) 1971-09-28 Granular gas filter - with narrow annular beds stacked cleaned by double reverse impulses
FR7242273A FR2207745A1 (en) 1972-11-28 1972-11-28 Granular gas filter - with narrow annular beds stacked cleaned by double reverse impulses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7242273A FR2207745A1 (en) 1972-11-28 1972-11-28 Granular gas filter - with narrow annular beds stacked cleaned by double reverse impulses

Publications (2)

Publication Number Publication Date
FR2207745A1 true FR2207745A1 (en) 1974-06-21
FR2207745B1 FR2207745B1 (en) 1976-08-20

Family

ID=9107858

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7242273A Granted FR2207745A1 (en) 1971-09-28 1972-11-28 Granular gas filter - with narrow annular beds stacked cleaned by double reverse impulses

Country Status (1)

Country Link
FR (1) FR2207745A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933337A1 (en) * 1998-01-15 1999-08-04 Canpro Water Treatment Inc. Water softening assembly
US6090285A (en) * 1998-01-15 2000-07-18 Chau; Yiu Chau Tank treatment assembly

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1587415A (en) * 1968-10-04 1970-03-20

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1587415A (en) * 1968-10-04 1970-03-20

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0933337A1 (en) * 1998-01-15 1999-08-04 Canpro Water Treatment Inc. Water softening assembly
US6090285A (en) * 1998-01-15 2000-07-18 Chau; Yiu Chau Tank treatment assembly

Also Published As

Publication number Publication date
FR2207745B1 (en) 1976-08-20

Similar Documents

Publication Publication Date Title
US3167399A (en) Radial flow reactor
JP3302427B2 (en) Apparatus for filtering solid particles from fluids
AU2003226735B2 (en) Filter assembly comprising filter elements and a filter grid
GB1279799A (en) Improvements in or relating to blending apparatus
GB1228784A (en)
ES8301655A1 (en) Hot gas particulate removal.
GB1420159A (en) Apparatus for separating solid particles from a gaseous medium
JPH02503291A (en) Moving bed reactor and its operating method
GB1365078A (en) Screening apparatus
FR2207745A1 (en) Granular gas filter - with narrow annular beds stacked cleaned by double reverse impulses
BE792055A (en) Granular gas filter - with narrow annular beds stacked cleaned by double reverse impulses
ES323698A1 (en) Apparatus for interacting particulate material with gas
GB1342082A (en) Filters for liquids
US4155728A (en) Screenless granular bed filter
GB1375220A (en)
GB1129468A (en) Filter apparatus for removing dust from a crude gas
US2766187A (en) Method and apparatus for hydrocarbon conversion
US417070A (en) Richard morris
US4594794A (en) Device for solids and fluid handling and distribution in a magnetically stabilized fluidized bed
GB118855A (en) Improved Apparatus for the Continuous Separation of Solids from Liquids.
JPS5845710A (en) Liquid press discharge apparatus
JP3293953B2 (en) Dust remover
FR2190499A1 (en) Fluid filtration plant - of modular design
GB1116976A (en) Improvements in or relating to a method of and apparatus for reducing the range of sojourn times in continuously operated fluidised-bed equipment
GB1446582A (en) Filter tank assembly

Legal Events

Date Code Title Description
ST Notification of lapse