WO1991017041A1 - Siebbandpresse - Google Patents
Siebbandpresse Download PDFInfo
- Publication number
- WO1991017041A1 WO1991017041A1 PCT/AT1991/000063 AT9100063W WO9117041A1 WO 1991017041 A1 WO1991017041 A1 WO 1991017041A1 AT 9100063 W AT9100063 W AT 9100063W WO 9117041 A1 WO9117041 A1 WO 9117041A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- belt
- belts
- rollers
- sieve
- support
- 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.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B9/00—Presses specially adapted for particular purposes
- B30B9/02—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material
- B30B9/24—Presses specially adapted for particular purposes for squeezing-out liquid from liquid-containing material, e.g. juice from fruits, oil from oil-containing material using an endless pressing band
-
- 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
- B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
- B01D33/042—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering whereby the filtration and squeezing-out take place between at least two filtering bands
-
- 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
- B01D33/58—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element
- B01D33/62—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying
- B01D33/64—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression
- B01D33/646—Handling the filter cake in the filter for purposes other than for regenerating the filter cake remaining on the filtering element for drying by compression by pressure rollers
Definitions
- the invention relates to a belt press with rotating belt, which with the interposition of a
- - 'Support belt can be pressed against each other by rollers transversely to the running direction of the sieve belts and the support belts, in which the support belts have drainage channels for the material water squeezed out by the sieve belts, the support belts each having a flexible belt or
- the material to be dewatered for example sludges from wastewater treatment plants or else in the production of fruit juices between endless filter or sieve belts, is subjected to a pressing pressure, the escaping material water being discharged through the sieve belts.
- Sieve belts must therefore have sufficient water permeability and consist of a correspondingly permeable material or fabric.
- Such sieve belts must at the same time have a correspondingly high mechanical load-bearing capacity and the required pressing pressure is usually maintained by a plurality of rollers or rollers which are set transversely to the direction of the sieve travel. At the same time, usually one
- the adjustable baling pressure cannot be increased arbitrarily, because for geometrical reasons the distance between adjacent pressure rollers, which act transversely to the wire running direction, cannot be chosen arbitrarily small and, conversely, with correspondingly large supporting surfaces, the discharge of the squeezed material water no longer ensures is.
- support belts run parallel to lead to the sieve belts, which mostly have transversely running channels that are open towards the filter belt side, for draining off the material water.
- Such carrier tapes themselves must be sufficiently flexible to be able to be guided over deflection rollers and drive rollers, and due to this required flexibility of the material of the carrier tape, the maximum pressing pressure in filter belt presses is also limited here.
- Such a design with supporting belts that are open towards the sieve belt can already be found, for example, in DE-PS 28 44 716 or DE-PS 28 44 715.
- the invention now aims to further develop a screen belt press of the type mentioned, in which corresponding supporting elements are used in addition to rotating screen belts, in such a way that even higher compression pressures without mechanical overloading of the screen belts or the support belts in a targeted manner in different areas of the
- the belt filter press according to the invention essentially consists in the fact that the rollers can be set separately at different pressures via hydraulic cylinder-piston units. Since support belts are used which are formed from a flexible belt or a chain, and plate-shaped and largely rigid pressing bodies are provided which are connected to such a flexible belt or chain, higher pressing pressures can be distributed over the surface and achieve higher surface pressures, whereby the fact that the belt or chain can be moved at the speed of the sieve belt in the running direction of the sieve belt keeps the mechanical load on the sieve belt low ⁇ *.
- the rollers can be adjusted by means of hydraulic cylinder-piston units, wherein the individual adjustment of the contact pressure is easily achieved due to the pressure-equalizing effect of the plate-shaped pressing bodies without the risk of overloading the sieve belt.
- a correspondingly fine adjustment of the desired pressing pressure is achieved through the separate application of different pressing pressures.
- the design is preferably such that cylinder piston units opposite one another transversely to the direction of travel are rigidly connected to one another and supported on the rigid connection, as a result of which a mutual Supporting the press rollers does not lead to additional loads on the frame.
- the pressed bodies can have drainage grooves and / or perforations in a manner known in principle from the previous flexible and elastic supporting tapes, the fact that separate rigid pressed bodies are used means that the geometric configuration of openings and / or drainage grooves is independent of the required flexibility. act of the belt or the chain can be better adapted to the requirements.
- the areal extent of openings can naturally not be increased arbitrarily, since otherwise such support tapes would no longer ensure their support function.
- correspondingly closely adjacent passage channels for the material water can be easily realized in the case of essentially rigid plate-shaped pressing bodies, since much more rigid and stable materials can be used for the rigid pressing bodies than could be used for a flexible carrier belt rotating over rollers or drives.
- the design can be such that the pressing bodies in the longitudinal direction of the belt or chain (s) mutually
- connection of the pressing body with the belt or the chain can be designed to be detachable, whereby in particularly simple Way screws can be used.
- connection of the pressing body with the belt or the chains allows you to choose the fixing on the belt or the chains so that the fixing of each plate is only longitudinal - a line running transversely to the direction of wire travel, which also leads to acute-angled deflections ⁇ steering rollers and drive rollers are possible without risk of damage to the press body.
- FIG. 1 shows a schematic view of a belt press according to the invention
- 2 shows, on an enlarged scale, a detailed view of the pressing zone with the plate-shaped, rigid pressing bodies supporting the sieve belts and supported by a flexible belt or chain
- Figures 3 and 4 in a representation similar to Figure 2 different fixing options of the rigid, plate-shaped pressing body on a flexible belt
- the Figure 5 in a representation analogous to Figures 3 and 4, the fixing of plate-shaped, rigid compacts on a chain
- FIG. 6 shows a partial view in the direction of arrow VI in FIG. 5.
- support belts 1 formed by a flexible belt or chain are provided, which are guided over deflection rollers 2 and which, as is shown in more detail in the following figures, rigid, plate-shaped pressing bodies to the bottom ⁇ support of sieve or filter belts 3, which are guided in addition to the deflection rollers 2 over other deflection rollers 4.
- at least one of the deflection rollers 2 and 4 is designed with a drive for the movement of the support belt or sieve belt which interacts directly therewith.
- the feed point for material to be dewatered, such as sludge, is denoted by 5 and the discharge point after passing through the shown Embodiment essentially vertical pressing zone with 6.
- scrapers 7 are provided for cleaning the belt, with cleaning means schematically indicated for further cleaning.
- ⁇ supply devices 8 which can be formed for example by brushes and / or spray nozzles, are provided.
- adjustable press rollers 9 are also shown, which control the controlled introduction of a hydraulic cylinder piston units
- the support belts formed by a flexible belt or chain are again designated 1 and carry rigid, plate-shaped pressing bodies 10, which serve as a support for the sieve or filter belts 3.
- the medium to be dewatered between the filter or sieve belts 3 is indicated by 11.
- the individual, rigid, plate-shaped pressing bodies are at a distance from one another in the longitudinal direction of the belt or chain 1, which enables a safe deflection around the deflection or drive rollers 2 without exerting any bending stress.
- rollers 9 are provided, which can be acted upon separately via hydraulic cylinders 12 5.
- the rollers 9 are shown schematically in FIG indicated, displaceable bearings 13, wherein two opposing rollers are mutually supported by a common cylinder system 12 and thus no external frame loads occur.
- the surface of the rollers 9 is, for example, rubberized.
- FIG. 3 and 4 show different possibilities for fixing the plate-shaped pressing bodies 10 on a support belt 1 formed by a flexible belt.
- a screw connection 14 is used so that the fixing takes place along a line running transversely to the longitudinal direction of the belt 1 and thus a safe deflection is easily ensured.
- the fixing can again take place along a line running transversely to the longitudinal direction of the belt 1 via a cam connection 15, as shown in FIG.
- drainage grooves 16 are also indicated on the surface facing the filter belt, which, depending on the requirements, can run essentially transversely to the longitudinal direction or, in particular in the case of a vertical arrangement of the pressing zone, also inclined to the longitudinal direction of the belt in order to ensure proper derivation.
- openings can also be provided for draining off the squeezed-out liquid.
- a chain 1 is used as the support band, the pivot axes of adjacent chain links being indicated by 17.
- a screw connection 14 is again used to fix the rigid plate-shaped bodies.
- drainage grooves 16 running diagonally to the longitudinal axis of the chain 1 are indicated schematically.
- a pressing zone inclined to the horizontal or an essentially horizontal pressing zone can of course also be provided in accordance with the requirements.
- the rollers can be adjusted pneumatically, hydraulically or mechanically and the belt press can be operated continuously or intermittently.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Filtration Of Liquid (AREA)
- Press Drives And Press Lines (AREA)
- Paper (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA998/90 | 1990-05-02 | ||
| AT99890 | 1990-05-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1991017041A1 true WO1991017041A1 (de) | 1991-11-14 |
Family
ID=3504594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/AT1991/000063 Ceased WO1991017041A1 (de) | 1990-05-02 | 1991-05-02 | Siebbandpresse |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0481047A1 (de) |
| CA (1) | CA2063252A1 (de) |
| WO (1) | WO1991017041A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2735988A1 (fr) * | 1995-06-27 | 1997-01-03 | Charbonnier Jean | Dispositif de filtration d'une suspension avec deversement des particules solides dans un bac conteneur |
| DE102009038360A1 (de) * | 2009-08-22 | 2011-02-24 | Claas Selbstfahrende Erntemaschinen Gmbh | Vorrichtung zur Entwässerung von Biomasse und diese verwendendes Erntefahrzeug |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2281860A (en) * | 1939-05-27 | 1942-05-05 | Jean C Renault | Continuous feed and pressure press |
| AT287501B (de) * | 1968-02-16 | 1971-01-25 | Willmes Josef Kg | Vorrichtung zum Auspressen von Flüssigkeit aus feuchten Massen, wie Obstmaische od.dgl. |
| FR2416043A1 (fr) * | 1978-02-06 | 1979-08-31 | Degremont Sa | Filtre a bande vibrante |
-
1991
- 1991-05-02 WO PCT/AT1991/000063 patent/WO1991017041A1/de not_active Ceased
- 1991-05-02 CA CA002063252A patent/CA2063252A1/en not_active Abandoned
- 1991-05-02 EP EP91908738A patent/EP0481047A1/de not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2281860A (en) * | 1939-05-27 | 1942-05-05 | Jean C Renault | Continuous feed and pressure press |
| AT287501B (de) * | 1968-02-16 | 1971-01-25 | Willmes Josef Kg | Vorrichtung zum Auspressen von Flüssigkeit aus feuchten Massen, wie Obstmaische od.dgl. |
| FR2416043A1 (fr) * | 1978-02-06 | 1979-08-31 | Degremont Sa | Filtre a bande vibrante |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2735988A1 (fr) * | 1995-06-27 | 1997-01-03 | Charbonnier Jean | Dispositif de filtration d'une suspension avec deversement des particules solides dans un bac conteneur |
| DE102009038360A1 (de) * | 2009-08-22 | 2011-02-24 | Claas Selbstfahrende Erntemaschinen Gmbh | Vorrichtung zur Entwässerung von Biomasse und diese verwendendes Erntefahrzeug |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0481047A1 (de) | 1992-04-22 |
| CA2063252A1 (en) | 1991-11-03 |
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