WO2001039863A1 - Dispositif servant a retenir des matieres solides lors du passage d'un liquide a travers ce dernier - Google Patents

Dispositif servant a retenir des matieres solides lors du passage d'un liquide a travers ce dernier Download PDF

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Publication number
WO2001039863A1
WO2001039863A1 PCT/AT2000/000320 AT0000320W WO0139863A1 WO 2001039863 A1 WO2001039863 A1 WO 2001039863A1 AT 0000320 W AT0000320 W AT 0000320W WO 0139863 A1 WO0139863 A1 WO 0139863A1
Authority
WO
WIPO (PCT)
Prior art keywords
computing device
endless elements
linear endless
linear
comb teeth
Prior art date
Application number
PCT/AT2000/000320
Other languages
German (de)
English (en)
Inventor
Gernot Mahr
Original Assignee
Headworks Inc.
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
Application filed by Headworks Inc. filed Critical Headworks Inc.
Priority to AU19750/01A priority Critical patent/AU1975001A/en
Publication of WO2001039863A1 publication Critical patent/WO2001039863A1/fr

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
    • B01D33/04—Filters with filtering elements which move during the filtering operation with filtering bands or the like supported on cylinders which are impervious for filtering
    • 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
    • B01D33/27—Filters with filtering elements which move during the filtering operation with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces
    • B01D33/275—Filters with filtering elements which move during the filtering operation with rotary filtering surfaces, which are neither cylindrical nor planar, e.g. helical surfaces using contiguous impervious surfaces
    • 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
    • B01D33/44—Regenerating the filter material in the filter
    • B01D33/46—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element
    • B01D33/466—Regenerating the filter material in the filter by scrapers, brushes nozzles or the like acting on the cake-side of the filtering element scrapers
    • 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
    • B01D33/80—Accessories
    • B01D33/804—Accessories integrally combined with devices for controlling the filtration
    • B01D33/807—Accessories integrally combined with devices for controlling the filtration by level measuring

Definitions

  • the invention relates to a computing device for retaining solids when flowing through a liquid, with a sieve screen and a stripping device which can be moved relative to one another, and with a drive device for bringing about this relative movement.
  • overflows are usually provided, into which, in the event of flooding, the liquid that can no longer be conducted from the canal can be drained off.
  • These overflows are usually directly connected to a nearby body of water, into which the liquid that can no longer be conveyed by the sewer is thus directed.
  • all solids that are in the liquid would also be involved - these are often substances and substances.
  • Pieces of paper, pieces of wood, faeces and other polluting solids - transported directly into the body of water, and in the event of flooding there would be a significant deterioration in the quality of the water into which these solids would be directed.
  • a sieve screen with a cleaning device for a waste water system is therefore already known.
  • a cleaning device is arranged in the flow direction behind the screen screen, which is provided with rake bars which are fixedly arranged at parallel distances from one another.
  • the cleaning device consists of a cleaning trolley and a cleaning comb firmly connected to it, the teeth of which protrude forward over the profile edge of the rake bars.
  • the teeth are triangular and have a flat flank oriented towards the inlet side and a steep flank oriented towards the opposite discharge side.
  • a cleaning scraper blade is arranged at the inlet end of the rake bars.
  • teething is assigned to a deflection roller which delimits the computing field defined by the linear endless elements.
  • the running direction of the linear endless elements is essentially in the direction of flow of the liquid.
  • the drive device is assigned a liquid level measuring unit in front of the computing device.
  • the measuring unit In order to use the measured liquid level to regulate the circulating speed, it is favorable if the measuring unit is connected to a control circuit for the drive device for regulating the circulating speed of the linear endless elements depending on the liquid level. In order to be able to use the computing device under very different environmental conditions, it is advantageous if the rotational speed of the linear endless elements can be regulated between 0.1 and 5 m / s.
  • Figure 1 is a plan view of a computing device with two spaced pairs of guide rollers.
  • FIG. 2 shows a longitudinal section of the computing device along the line II-II in FIG. 1;
  • FIG. 3 shows a cross section of the computing device along the line III-III in Fig. 1.
  • Fig. 6 is a front view of part of the scraper comb with a plurality of linear endless elements.
  • FIG. 1 shows a top view of a computing device 1 with two spaced-apart deflecting roller pairs 2.
  • the deflecting rollers 2 are rotatably mounted in a frame 3, which is expediently made of stainless steel due to the high loads and the special operating conditions, the frame 3 composed of two frame lower parts 4 (see FIG. 2) and two frame upper parts 4 'and cross connections 5, 5'.
  • the frame 3 has vertical frame struts 6 and vertical end struts 7.
  • Linear endless elements 8 are guided around the deflection rollers 2 and are held tensioned by a tensioning unit 9.
  • the linear endless elements 8 are also guided over support rollers 10, which are located on the water inlet side.
  • Each support roller 10 serves to absorb the compressive forces which are applied to the linear endless elements 8 by the liquid flowing in the dashed arrow direction 11.
  • Each support roller 10 is assigned a scraper comb 12 which is attached to the frame 3 by means of one of the cross struts 6.
  • the scraper combs 12 serve to scrape off the solids taken up by the linear endless elements 8 again, so that there is no laying of the sieve screen formed by the linear endless elements.
  • the scraper combs 12 are thus Weil assigned to one of the support rollers 10 to prevent the support rollers 10 from being occupied with solids.
  • a Endabstreifer 14 is provided which is associated with the local guide pulley 2 '.
  • This end scraper 14 is a scraper comb, the teeth of which (seen in the direction of flow 13) extend beyond the point at which the linear endless elements 8 come into contact with the deflection roller 2 '.
  • the linear endless elements 8 are driven by means of the drive device 15, in particular an electric motor (asynchronous motor), which is assigned to a deflection roller 2 ′′.
  • an electric motor asynchronous motor
  • Fig. 2 shows a longitudinal section of the computing device 1 along the line II-II in Fig. 1.
  • the linear endless elements 8, e.g. 30 stranded ropes made of stainless steel are guided around the rubberized outer surfaces 16 of the deflection rollers 2, cf. also Fig. 3.
  • the rubberized jacket parts have 16 grooves (not shown), which the stranded cables 8 at a safe distance from each other, e.g. at a distance of 10 mm.
  • the tensioning unit 9 can be seen in FIG. 2, which is designed as an additional, transversely adjustable, spring-mounted deflection roller which can be displaced by means of the screw spindle 9 '(see FIG. 1).
  • the drive device 15 is connected directly to the shaft 17 of the deflection roller 2 ′′.
  • a measurement of the water level in the channel via a liquid measuring sensor 18 is provided to regulate the circulation speed.
  • the signal picked up by the liquid measuring sensor 18 controls the drive speed of the electric motor provided as the drive device 15 via a control circuit 19 by means of frequency conversion (20-100 Hz).
  • FIG. 3 shows a cross section of the computing device 1 according to the line III-III in FIG. 1.
  • cross connections 5, 5 ' can be seen, which are expediently made of stainless steel, and wind braces 20.
  • the deflection rollers 2 are free rotatable longitudinal axes 21, which are freely rotatable in the computing frame 3 by means of bearings 22. With the axes of rotation 21 drums 16 'are connected, on which the vulcanized rubber jackets 16 for a good friction connection with the linear Endless elements 8 are provided.
  • T he computing device 1 is located on a weir 23 which separates the channel from an overflow.
  • the sewage in the sewer enters the computing device 1 from the sewer in the direction of arrow 24 and, after the solids have been retained by the linear endless elements 8, flows into the overflow in the direction of the arrow 24 without the linear endless elements 8 on the rear 23 'of the computing device 1 come into contact.
  • Fig. 4 shows in detail a scraper comb 12 with a plurality of comb teeth 25, which are intended to guide and strip the linear endless elements 8 (not shown in Fig. 4) in order to remove the solids adhering to the linear endless elements 8 to reach.
  • the scraper comb 12 is connected to a cross strut 6 via two screw connections 26.
  • FIG. 5 shows a top view of this stripping comb 12 and the transverse strut 6 connected to it, as well as a linear endless element 8 guided through the comb teeth 25.
  • the stripping comb 12 is applied to the cross strut 6 by means of the screw connection 26.
  • the longitudinal axis of the comb teeth 25 is inclined to the longitudinal axis of the linear endless elements 8, and the two axes take an acute angle ⁇ of e.g. approx. 30 °. This inclination and the friction of the linear endless elements 8 on edges 27 of the comb teeth 25 remove the solids from the linear endless elements 8.
  • FIG. 6 shows in detail a frontal view of a part of the scraper comb 12 similar to FIG. 4, the linear endless elements 8 also being shown. It can be seen here that the linear endless elements 8 slide along the edges 27, 27 'of the comb teeth 25 during the passage between the comb teeth 25 and are thus freed of solids adhering to them.
  • the scraper combs 12, 14 can, for example, be made in one piece from polyethylene.
  • the linear endless elements 8 can also consist of synthetic fiber ropes or chains, in particular made of stainless steel.

Landscapes

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

Abstract

L'invention concerne un dispositif (1) servant à retenir des matières solides lors du passage d'un liquide à travers ce dernier. Ce dispositif comprend une grille de criblage et une unité de raclage (12, 14) pouvant se déplacer l'une par rapport à l'autre, ainsi qu'une unité d'entraînement (15) servant à provoquer ce déplacement relatif. La grille de criblage comprend plusieurs éléments sans fin (8) linéaires, mobiles, auxquels l'unité d'entraînement (15) est associée afin de les mettre en mouvement. L'unité de raclage (12, 14) est placée de manière stationnaire.
PCT/AT2000/000320 1999-12-01 2000-11-30 Dispositif servant a retenir des matieres solides lors du passage d'un liquide a travers ce dernier WO2001039863A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU19750/01A AU1975001A (en) 1999-12-01 2000-11-30 Trap device for retaining solids on through-flow of a liquid

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0202299A AT407716B (de) 1999-12-01 1999-12-01 Rechenvorrichtung zum zurückhalten von feststoffen beim durchströmen einer flüssigkeit
ATA2022/99 1999-12-01

Publications (1)

Publication Number Publication Date
WO2001039863A1 true WO2001039863A1 (fr) 2001-06-07

Family

ID=3526125

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AT2000/000320 WO2001039863A1 (fr) 1999-12-01 2000-11-30 Dispositif servant a retenir des matieres solides lors du passage d'un liquide a travers ce dernier

Country Status (3)

Country Link
AT (1) AT407716B (fr)
AU (1) AU1975001A (fr)
WO (1) WO2001039863A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2869904A4 (fr) * 2012-07-06 2016-05-18 Blue Water Technologies Inc Filtre à bande rotatif extensible de façon compartimentée pour réduire la consommation d'énergie
US10786766B2 (en) 2014-05-21 2020-09-29 Nexom (Us), Inc. Support structure for fluid treatment systems having belted filtration systems

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2526331A1 (de) * 1975-06-12 1976-12-23 Gross Friedrich Siebbandflaechenfilter
US4392951A (en) * 1979-08-20 1983-07-12 Kao Soap Co. Ltd. Screen filter
NL8701313A (nl) * 1986-06-14 1988-01-04 Jones & Attwood Ltd Zeeftrommel.
US5059313A (en) * 1989-03-31 1991-10-22 E+M Maschinenbau Conveyor rake sieve with hook-like plates

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH677001A5 (fr) * 1988-09-05 1991-03-28 Romag Roehren & Masch

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2526331A1 (de) * 1975-06-12 1976-12-23 Gross Friedrich Siebbandflaechenfilter
US4392951A (en) * 1979-08-20 1983-07-12 Kao Soap Co. Ltd. Screen filter
NL8701313A (nl) * 1986-06-14 1988-01-04 Jones & Attwood Ltd Zeeftrommel.
US5059313A (en) * 1989-03-31 1991-10-22 E+M Maschinenbau Conveyor rake sieve with hook-like plates

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2869904A4 (fr) * 2012-07-06 2016-05-18 Blue Water Technologies Inc Filtre à bande rotatif extensible de façon compartimentée pour réduire la consommation d'énergie
US10029195B2 (en) 2012-07-06 2018-07-24 Nexom (Us), Inc. Compartmentally expandable rotating belt filter for energy use reduction
US10786766B2 (en) 2014-05-21 2020-09-29 Nexom (Us), Inc. Support structure for fluid treatment systems having belted filtration systems

Also Published As

Publication number Publication date
AT407716B (de) 2001-05-25
ATA202299A (de) 2000-10-15
AU1975001A (en) 2001-06-12

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