CH633971A5 - Back-flushable filter - Google Patents

Back-flushable filter Download PDF

Info

Publication number: CH633971A5
Authority: CH; Switzerland
Prior art keywords: nozzle; filter; edge zone; nozzles; water
Prior art date: 1978-07-14

Application number

CH764978A

Other languages

German (de)

English (en)

Inventor

Paul Dober

Original Assignee

Sulzer Ag

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.)

1978-07-14

Filing date

1978-07-14

Publication date

1983-01-14

1978-07-14 Application filed by Sulzer Ag filed Critical Sulzer Ag

1978-07-14 Priority to CH764978A priority Critical patent/CH633971A5/de

1979-06-05 Priority to ES481279A priority patent/ES481279A1/es

1979-06-13 Priority to FR7915137A priority patent/FR2430782A1/fr

1979-07-09 Priority to IT24180/79A priority patent/IT1122060B/it

1983-01-14 Publication of CH633971A5 publication Critical patent/CH633971A5/de

Links

XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 19
239000012535 impurity Substances 0.000 claims description 3
239000000706 filtrate Substances 0.000 claims description 2
238000011010 flushing procedure Methods 0.000 claims 1
239000007788 liquid Substances 0.000 claims 1
238000011001 backwashing Methods 0.000 description 11
239000000356 contaminant Substances 0.000 description 5
238000001914 filtration Methods 0.000 description 4
239000000463 material Substances 0.000 description 4
125000006850 spacer group Chemical group 0.000 description 4
239000008237 rinsing water Substances 0.000 description 3
239000010802 sludge Substances 0.000 description 3
239000006004 Quartz sand Substances 0.000 description 1
VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
229910000831 Steel Inorganic materials 0.000 description 1
238000010276 construction Methods 0.000 description 1
239000000498 cooling water Substances 0.000 description 1
239000011521 glass Substances 0.000 description 1
238000000034 method Methods 0.000 description 1
239000000203 mixture Substances 0.000 description 1
231100000989 no adverse effect Toxicity 0.000 description 1
239000005416 organic matter Substances 0.000 description 1
230000002093 peripheral effect Effects 0.000 description 1
239000008262 pumice Substances 0.000 description 1
239000010959 steel Substances 0.000 description 1
239000004575 stone Substances 0.000 description 1
238000009423 ventilation Methods 0.000 description 1
239000002351 wastewater Substances 0.000 description 1

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
- B01D24/02—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration
- B01D24/10—Filters comprising loose filtering material, i.e. filtering material without any binder between the individual particles or fibres thereof with the filter bed stationary during the filtration the filtering material being held in a closed container
- B01D24/12—Downward filtration, the filtering material being supported by pervious surfaces
- 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
- B01D24/4626—Construction of spray heads specially adapted for regeneration of the filter material or for filtrate discharging
- 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

Landscapes

Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Filtration Of Liquid (AREA)

CH764978A 1978-07-14 1978-07-14 Back-flushable filter CH633971A5 (en)

Priority Applications (4)

Application Number	Priority Date	Filing Date	Title
CH764978A CH633971A5 (en)	1978-07-14	1978-07-14	Back-flushable filter
ES481279A ES481279A1 (es)	1978-07-14	1979-06-05	Perfeccionamientos en filtros lavables a contracorriente.
FR7915137A FR2430782A1 (fr)	1978-07-14	1979-06-13	Filtre se rincant a contre-courant
IT24180/79A IT1122060B (it)	1978-07-14	1979-07-09	Filtro con lavaggio in controcorrente

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CH764978A CH633971A5 (en)	1978-07-14	1978-07-14	Back-flushable filter

Publications (1)

Publication Number	Publication Date
CH633971A5 true CH633971A5 (en)	1983-01-14

Family

ID=4328419

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CH764978A CH633971A5 (en)	1978-07-14	1978-07-14	Back-flushable filter

Country Status (4)

Country	Link
CH (1)	CH633971A5 (it)
ES (1)	ES481279A1 (it)
FR (1)	FR2430782A1 (it)
IT (1)	IT1122060B (it)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2010010104A1 (en) *	2008-07-23	2010-01-28	Nestec S.A.	Water treatment unit for beverage production machine
CN105854367A (zh) *	2016-05-13	2016-08-17	上海绩优机电股份有限公司	一种过滤系统和过滤方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR2485385A1 (fr) *	1980-06-27	1981-12-31	Degremont	Filtre a lit de materiaux granulaires pour le traitement des eaux, notamment de l'eau de mer et des liquides corrosifs
ITMI20062045A1 (it) *	2006-10-24	2008-04-25	Danieli Off Mecc	Dispositivo di filtrazione a sabbia

1978
- 1978-07-14 CH CH764978A patent/CH633971A5/de not_active IP Right Cessation
1979
- 1979-06-05 ES ES481279A patent/ES481279A1/es not_active Expired
- 1979-06-13 FR FR7915137A patent/FR2430782A1/fr active Granted
- 1979-07-09 IT IT24180/79A patent/IT1122060B/it active

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
WO2010010104A1 (en) *	2008-07-23	2010-01-28	Nestec S.A.	Water treatment unit for beverage production machine
CN105854367A (zh) *	2016-05-13	2016-08-17	上海绩优机电股份有限公司	一种过滤系统和过滤方法
CN105854367B (zh) *	2016-05-13	2019-08-30	上海绩优机电股份有限公司	一种过滤系统和过滤方法

Also Published As

Publication number	Publication date
IT7924180A0 (it)	1979-07-09
FR2430782A1 (fr)	1980-02-08
ES481279A1 (es)	1980-02-01
IT1122060B (it)	1986-04-23
FR2430782B3 (it)	1982-05-21

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Legal Events

Date	Code	Title	Description
1998-08-14	PL	Patent ceased