NL1002509A1 - Filtering device. - Google Patents

Filtering device.

Info

Publication number
NL1002509A1
NL1002509A1 NL1002509A NL1002509A NL1002509A1 NL 1002509 A1 NL1002509 A1 NL 1002509A1 NL 1002509 A NL1002509 A NL 1002509A NL 1002509 A NL1002509 A NL 1002509A NL 1002509 A1 NL1002509 A1 NL 1002509A1
Authority
NL
Netherlands
Prior art keywords
filtering device
filtering
Prior art date
Application number
NL1002509A
Other languages
Dutch (nl)
Other versions
NL1002509C2 (en
Inventor
Harry Assen
Original Assignee
Astraco Beheer Bv
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 claimed from NL9500428A external-priority patent/NL9500428A/en
Application filed by Astraco Beheer Bv filed Critical Astraco Beheer Bv
Priority to NL1002509A priority Critical patent/NL1002509C2/en
Application granted granted Critical
Publication of NL1002509C2 publication Critical patent/NL1002509C2/en
Publication of NL1002509A1 publication Critical patent/NL1002509A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/28—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed moving during the filtration
    • B01D24/30—Translation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4631—Counter-current flushing, e.g. by air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/46—Regenerating the filtering material in the filter
    • B01D24/4694—Regenerating the filtering material in the filter containing filter material retaining means (e.g. screens, balls) placed on the surface of the filter material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/48—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D24/00—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof
    • B01D24/48—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration
    • B01D24/4861—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof integrally combined with devices for controlling the filtration by flow measuring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Filtration Of Liquid (AREA)
NL1002509A 1995-03-03 1996-03-01 Appts. for filtering contaminated liq. e.g. industrial waste water or ground water - has pump tube in sand bed in vertical vessel with adjustable centering supports between tube and inwardly inclined vessel lower end NL1002509C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
NL1002509A NL1002509C2 (en) 1995-03-03 1996-03-01 Appts. for filtering contaminated liq. e.g. industrial waste water or ground water - has pump tube in sand bed in vertical vessel with adjustable centering supports between tube and inwardly inclined vessel lower end

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL9500428A NL9500428A (en) 1995-03-03 1995-03-03 Filtering device.
NL1002509A NL1002509C2 (en) 1995-03-03 1996-03-01 Appts. for filtering contaminated liq. e.g. industrial waste water or ground water - has pump tube in sand bed in vertical vessel with adjustable centering supports between tube and inwardly inclined vessel lower end

Publications (2)

Publication Number Publication Date
NL1002509C2 NL1002509C2 (en) 1996-09-11
NL1002509A1 true NL1002509A1 (en) 1996-09-11

Family

ID=26642336

Family Applications (1)

Application Number Title Priority Date Filing Date
NL1002509A NL1002509C2 (en) 1995-03-03 1996-03-01 Appts. for filtering contaminated liq. e.g. industrial waste water or ground water - has pump tube in sand bed in vertical vessel with adjustable centering supports between tube and inwardly inclined vessel lower end

Country Status (1)

Country Link
NL (1) NL1002509C2 (en)

Also Published As

Publication number Publication date
NL1002509C2 (en) 1996-09-11

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Legal Events

Date Code Title Description
A1B A search report has been drawn up
AD1A A request for search or an international type search has been filed
PD2A A request for search or an international type search has been filed
BV The patent application has lapsed
VD1 Lapsed due to non-payment of the annual fee

Effective date: 20021001