EP0647155A1 - Filter drum - Google Patents
Filter drumInfo
- Publication number
- EP0647155A1 EP0647155A1 EP93912547A EP93912547A EP0647155A1 EP 0647155 A1 EP0647155 A1 EP 0647155A1 EP 93912547 A EP93912547 A EP 93912547A EP 93912547 A EP93912547 A EP 93912547A EP 0647155 A1 EP0647155 A1 EP 0647155A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- filter drum
- attachment
- supporting frame
- filter cloth
- 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.)
- Withdrawn
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/06—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums
- B01D33/067—Construction of the filtering drums, e.g. mounting or sealing arrangements
Definitions
- the invention relates to a filter drum comprising a supporting frame consisting of faces interconnected by cross beams and having a filter cloth connected to its circumference.
- the filter cloth In drum-like and other filters, the filter cloth is usually fixed by means of frames attached to the filter body by a large number of screws. This design requires a considerable work expenditure due to the necessity to bore a correspondingly large number of holes, cut threads in them and to fasten the filter cloth in this laborious way. Since the filter cloths must be from time to time exchanged, this time-consuming operation increases the maintenance costs of the filters.
- Another drawback of the state of art consists in the reduction of the filtering area of the drum.
- the filter drum according to the invention whose principle consists in that the filter cloth is at least on a part of its circumference equipped with a circumferential attachment member inserted into an attachment groove provided at least on the outer side of the cross beams of the supporting frame of the filter drum.
- the attachment groove is provided both on the outer side of the cross beams and on the circumference of the faces of the supporting frame of the filter drum.
- the circumferential attachment member can be fixed in the attachment groove by an elastic member.
- Fig. 1 is a partial sectional view of the filter drum
- Fig.2 is a sectional view of the filter cloth with the fixed circumferential attachment member.
- the filter drum comprises a filter cloth 1_ and a supporting frame consisting of faces 5_ with cross beams 4_ fixed between them. On the outer sides of the cross beams 4 ⁇ of the supporting frame are provided attachment grooves J3 open from the outer side of the filter drum.
- a circumferential attachment member 2_ having in the illustrated example of embodiment a semicircular cross section. This illustratted semicircular cross section of the circumferential attachment member 2_ can be replaced also by another well known shape.
- the circumferential attachment member 2_ is seated in the attachment groove 3_ into which it is inserted by its open side.
- each attachment groove 2 ⁇ mounted on the cross beam h_ are Seated opposite each other two circumferential attachment members 2_ having an elastic member 6_ inserted between them so as to secure them against the risk of falling out of the attachment groove 3 ⁇ .
- the shape of the cross section of the elastic member 6 ⁇ as well as the shape of the cross section of the attachment groove 3 ⁇ may differ from the shown embodiment .
- the filter cloth 1_ can be seated on well known not represented ribs fixed to the supporting frame of the filter drum.
- the elastic member ⁇ _ can be omitted, the circumferential attachment members 2_ being held in the attachment grooves _3_, 7_ by the tension produced by the filter cloth 1.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtration Of Liquid (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Detail Structures Of Washing Machines And Dryers (AREA)
Abstract
A filter drum comprising a supporting frame consisting of faces interconnected by cross beams (4) and having a filter cloth (1) fixed to its circumference. The filter cloth (1) is at least on a part of its circumference equipped with a circumferential attachment member (2) inserted into an attachment groove (3, 7) provided at least on the outer side of the cross beams (4) of the supporting frame of the filter drum.
Description
Description
Filter Drum
Technical Field
The invention relates to a filter drum comprising a supporting frame consisting of faces interconnected by cross beams and having a filter cloth connected to its circumference.
Background of the Invention
In drum-like and other filters, the filter cloth is usually fixed by means of frames attached to the filter body by a large number of screws. This design requires a considerable work expenditure due to the necessity to bore a correspondingly large number of holes, cut threads in them and to fasten the filter cloth in this laborious way. Since the filter cloths must be from time to time exchanged, this time-consuming operation increases the maintenance costs of the filters. Another drawback of the state of art consists in the reduction of the filtering area of the drum.
Disclosure of Invention
The drawbacks of the state of art are removed by the filter drum according to the invention whose principle consists in that the filter cloth is at least on a part of its circumference equipped with a circumferential attachment member inserted into an attachment groove provided at least on the outer side of the cross beams of the supporting frame of the filter drum.
In a preferred embodiment, the attachment groove is provided both on the outer side of the cross beams and on the circumference of the faces of the supporting frame of the filter drum.
The advantage of this arrangement of the filter drum consists in its simple design without screw attachment joints of the filter cloth and, consequently, in reducing both the production and the maintenance costs.
To secure the filter cloth reliably, the circumferential attachment member can be fixed in the attachment groove by an elastic member.
Brief Description of Drawings
An example of embodiment of the invention is illustrated in the annexed drawing in which Fig. 1 is a partial sectional view of the filter drum, and Fig.2 is a sectional view of the filter cloth with the fixed circumferential attachment member.
Modes for Carrying Out the Invention
The filter drum comprises a filter cloth 1_ and a supporting frame consisting of faces 5_ with cross beams 4_ fixed between them. On the outer sides of the cross beams 4^ of the supporting frame are provided attachment grooves J3 open from the outer side of the filter drum.
Along the circumference of the faces _5 of the supporting frame of the 'filter drum there are fixed front attachment grooves 7_ which can be replaced in other embodiments by the well known flat attach¬ ment members with screws.
To the circumference pf the filter cloth 1_ is fixed, for instance by gluing, a circumferential attachment member 2_ having in the illustrated example of embodiment a semicircular cross section. This illustratted semicircular cross section of the circumferential attachment member 2_ can be replaced also by another well known shape.
The circumferential attachment member 2_ is seated in the attachment groove 3_ into which it is inserted by its open side. In each attachment groove 2± mounted on the cross beam h_ are Seated opposite each other two circumferential attachment members 2_ having an elastic member 6_ inserted between them so as to secure them against the risk of falling out of the attachment groove 3^.
The shape of the cross section of the elastic member 6^ as well as the shape of the cross section of the attachment groove 3^ may differ from the shown embodiment .
The filter cloth 1_ can be seated on well known not represented ribs fixed to the supporting frame of the filter drum.
To exchange the filter cloth 1_, take out the elastic member J5, thus releasing in the attachment grooves 3^, 7_ the circumferential attachment members 2_ that can be then easily taken out of the attachment groove _3, and the filter cloth 1_ removed from the filter drum. After putting a new filter cloth 1_ onto the filter drum, lay the circumferential attach¬ ment members 2_ into the attachment grooves _, 7_, and secure them then against falling out by inserting the elastic element 6^, thus fixing the filter cloth to the filter drum. The filter is then ready for
operat ion .
In another alternative embodiment, the elastic member <_ can be omitted, the circumferential attachment members 2_ being held in the attachment grooves _3_, 7_ by the tension produced by the filter cloth 1.
Claims
1. A filter drum comprising a supporting frame consisting of faces interconnected by cross beams and having a filter cloth fixed to its circumference, charactereized by that the filter cloth (1) is at least on a part of its circumference equipped with a circumferential attachment member (2) inserted into an attachment groove (3, 7) provided at least on the outer side of the cross beams (4) of the supporting frame of the filter drum.
2. A filter drum as claimed in Claim 1, characterized by that the attachment groove (3) is provided on the outer side of the cross beams (4) and that the front attachment groove (7) is provided on the circumference of the faces (5) of the supporting frame of the filter drum.
3. A filter drum as claimed in Claim 1 or 2, characterized by that the circumferential attachment member (2) is secured in the attachment groove (3, 7) by an elastic member (6).
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CS921937A CZ278599B6 (en) | 1992-06-24 | 1992-06-24 | Filter drum |
CS1937/92 | 1992-06-24 | ||
PCT/CZ1993/000015 WO1994000218A1 (en) | 1992-06-24 | 1993-06-21 | Filter drum |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0647155A1 true EP0647155A1 (en) | 1995-04-12 |
Family
ID=5355012
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP93912547A Withdrawn EP0647155A1 (en) | 1992-06-24 | 1993-06-21 | Filter drum |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP0647155A1 (en) |
AU (1) | AU4305593A (en) |
CA (1) | CA2138019A1 (en) |
CZ (1) | CZ278599B6 (en) |
FI (1) | FI946022A (en) |
HU (1) | HUT70112A (en) |
SK (1) | SK193792A3 (en) |
WO (1) | WO1994000218A1 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6503561B1 (en) * | 1999-07-08 | 2003-01-07 | Air Products And Chemicals, Inc. | Liquid precursor mixtures for deposition of multicomponent metal containing materials |
GB0327582D0 (en) | 2003-11-27 | 2003-12-31 | Madison Filter 981 Ltd | Filter cloth retention |
CZ21066U1 (en) | 2010-03-02 | 2010-07-02 | In - Eko Team S.R.O. | Microstrainer filter drum and filtering means therefor |
DE102016111842A1 (en) * | 2016-06-28 | 2017-12-28 | Andritz Kmpt Gmbh | Pressure and / or vacuum filter device |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE430533A (en) * | ||||
US2018398A (en) * | 1935-01-04 | 1935-10-22 | Oliver United Filters Inc | Clamp |
US3363773A (en) * | 1965-04-09 | 1968-01-16 | Mero & Company Inc | Filter apparatus |
GB1235474A (en) * | 1967-06-30 | 1971-06-16 | Paxman & Co Ltd Davey | Improvements in and relating to filters |
-
1992
- 1992-06-24 SK SK193792A patent/SK193792A3/en unknown
- 1992-06-24 CZ CS921937A patent/CZ278599B6/en unknown
-
1993
- 1993-06-21 CA CA 2138019 patent/CA2138019A1/en not_active Abandoned
- 1993-06-21 WO PCT/CZ1993/000015 patent/WO1994000218A1/en not_active Application Discontinuation
- 1993-06-21 HU HU9403622A patent/HUT70112A/en unknown
- 1993-06-21 EP EP93912547A patent/EP0647155A1/en not_active Withdrawn
- 1993-06-21 AU AU43055/93A patent/AU4305593A/en not_active Abandoned
-
1994
- 1994-12-22 FI FI946022A patent/FI946022A/en not_active Application Discontinuation
Non-Patent Citations (1)
Title |
---|
See references of WO9400218A1 * |
Also Published As
Publication number | Publication date |
---|---|
CA2138019A1 (en) | 1994-01-06 |
FI946022A0 (en) | 1994-12-22 |
AU4305593A (en) | 1994-01-24 |
SK193792A3 (en) | 1995-07-11 |
HUT70112A (en) | 1995-09-28 |
CZ193792A3 (en) | 1994-03-16 |
FI946022A (en) | 1994-12-22 |
WO1994000218A1 (en) | 1994-01-06 |
CZ278599B6 (en) | 1994-03-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19950124 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT CH DE DK IT LI SE |
|
17Q | First examination report despatched |
Effective date: 19950515 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 19970603 |