GB1343075A - Method of and apparatsu for filtering liquids - Google Patents
Method of and apparatsu for filtering liquidsInfo
- Publication number
- GB1343075A GB1343075A GB1334771*[A GB1334771A GB1343075A GB 1343075 A GB1343075 A GB 1343075A GB 1334771 A GB1334771 A GB 1334771A GB 1343075 A GB1343075 A GB 1343075A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bed
- chamber
- line
- valve
- backwash
- 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.)
- Expired
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
- B01D24/46—Regenerating the filtering material in the filter
- B01D24/4631—Counter-current flushing, e.g. by air
- B01D24/4636—Counter-current flushing, e.g. by air with backwash shoes; with nozzles
-
- 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
- B01D24/48—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
- B01D24/4869—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 level measuring
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
1343075 Filter apparatus ECODYNE CORP 5 May 1971 [12 May 1970] 13347/71 Heading B1D A self-backwashing filter for liquids comprises a chamber 10 containing a particulate filter bed 20 and divided by the bed and by partition 16 into an inlet chamber 18, an outlet chamber 22 and a backwash storage chamber 14. Liquid to be filtered enters via line 30, head box 32, line 36 and line 38 and is delivered to service after a downward flow filtration via line 48 without passing it through any further portion of the filter apparatus and without raising it to the level of the backwash storage compartment having valve 50. The backwash chamber 14 is filled by closing valve 50 and opening valve 54 in line 52. The filter is periodically automatically backwashed when the pressure difference across the bed reaches a predetermined limit, as sensed by control pipe 55 and probe 57. The flow of liquid through the bed is ceased by opening by-pass valve 42 and the inlet chamber is drained via line 44 by opening valve 46. A reverse flow of air is then passed through the bed from blower 60 via line 62, followed by an upward flow of backwash liquid.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US3656970A | 1970-05-12 | 1970-05-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1343075A true GB1343075A (en) | 1974-01-10 |
Family
ID=21889329
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1334771*[A Expired GB1343075A (en) | 1970-05-12 | 1971-05-05 | Method of and apparatsu for filtering liquids |
Country Status (2)
Country | Link |
---|---|
BE (1) | BE767003A (en) |
GB (1) | GB1343075A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5466462U (en) * | 1977-10-19 | 1979-05-11 | ||
GB2152021A (en) * | 1983-11-11 | 1985-07-31 | Projekt Wasserwirtschaft Veb | Biological treatment of effluent |
GB2308987A (en) * | 1996-01-11 | 1997-07-16 | Kenneth Albert Stagg | self cleaning liquid filter |
CN113577865A (en) * | 2020-12-03 | 2021-11-02 | 安徽华塑股份有限公司 | Constant-flow filtering device for centrifugal mother liquor |
-
1971
- 1971-05-05 GB GB1334771*[A patent/GB1343075A/en not_active Expired
- 1971-05-11 BE BE767003A patent/BE767003A/en unknown
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5466462U (en) * | 1977-10-19 | 1979-05-11 | ||
GB2152021A (en) * | 1983-11-11 | 1985-07-31 | Projekt Wasserwirtschaft Veb | Biological treatment of effluent |
GB2308987A (en) * | 1996-01-11 | 1997-07-16 | Kenneth Albert Stagg | self cleaning liquid filter |
CN113577865A (en) * | 2020-12-03 | 2021-11-02 | 安徽华塑股份有限公司 | Constant-flow filtering device for centrifugal mother liquor |
Also Published As
Publication number | Publication date |
---|---|
BE767003A (en) | 1971-10-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |