DK177286B1

DK177286B1 - Process for cleaning biological filters

Info

Publication number: DK177286B1
Application number: DKPA201000201A
Authority: DK
Inventors: Lars Bo Pedersen
Original assignee: Skov As
Priority date: 2010-03-12
Filing date: 2010-03-12
Publication date: 2012-10-08
Also published as: DK201000201A

Abstract

Opfindelsen omfatter en fremgangsmåde samt en vaskemaskine (1) til afrensning af filtre (2), hvor vaskemaskinen (1), kan bevæges langs hele filterets (2) længderetn ing, og hvor der på vaskemaskinen (1) er monteret en væskepumpe (16), som suger væske (3) op fra et under filteret (2) placeret bassin (18), hvor væsken (3) efterfølgende under tryk og udsprøjtn ing fra en dyse (5) anvendes til afrensn ing af filteret (2). Med opfindelsen opnås, at vaskemaskinen (1) kan konstrueres og fremstilles alene efter filterets (2) højde og uafhængig af filterets (2) længde. Opfindelsen omfatter desuden anvendelse af fremgangsmåden og vaskemaskinen (1) til afrensning af filtre (2) herunder biologiske filtre til rensning af luften i dyrestalde.The invention comprises a method as well as a washing machine (1) for cleaning filters (2), wherein the washing machine (1) can be moved along the entire longitudinal direction of the filter (2), and where a liquid pump (16) is mounted on the washing machine (1). , which sucks liquid (3) up from a basin (18) located under the filter (2), where the liquid (3) is subsequently used under pressure and spraying from a nozzle (5) for cleaning the filter (2). The invention achieves that the washing machine (1) can be designed and manufactured only according to the height of the filter (2) and independent of the length of the filter (2). The invention further comprises the use of the method and the washing machine (1) for cleaning filters (2), including biological filters for cleaning the air in animal stables.

Description

DK 177286 B1DK 177286 B1

Fremgangsmåde til afrensning af biologiske filtre.Process for cleaning biological filters.

Opfindelsen angår en fremgangsmåde til afrensning af biologiske filtre til filtrering af luften fra dyrestalde, ved anvendelse af en vaskemaskine, der 5 omfatter mindst en dyse forbundet med en væskepumpe, som afrenser filtrene ved spuling af væske fra et væskebassin.BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a method of purifying biological filters for filtering the air from animal sheds using a washing machine comprising at least one nozzle connected to a liquid pump which purifies the filters by flushing liquid from a liquid pool.

Det er kendt at anvende vaskemaskiner til afrensning af filtre, som er placeret ved et bassin, der indeholder væske og som kan bevæges 10 horisontalt langs filteret styret af skinner, hvor væsken anvendes til rensning af filtrene ved udsprøjtning gennem dyser med et væsketryk, som er skabt af en væskepumpe.It is known to use washing machines for cleaning filters which are located at a liquid-containing basin and can be moved horizontally along the rails-controlled filter, where the liquid is used to clean the filters by spraying through nozzles with a liquid pressure which is created by a liquid pump.

Væskepumpen er i de hidtil kendte systemer fortrinsvis fastsiddende og 15 monteret ved væskebassinerne, hvorfra væsken opsuges og under tryk udsprøjtes gennem dyser, der er placeret på den bevægelige vaskemaskine.The liquid pump is preferably fixed in the prior art systems and mounted at the liquid basins from which the liquid is sucked up and pressurized through nozzles located on the movable washing machine.

Det har imidlertid vist sig, at der er nogle ulemper ved denne kendte teknik, 20 herunder især ved langstrakte filtre, idet der fra den fastsiddende væskepumpe skal trækkes trykslanger til dysen på den bevægelige vaskemaskine.However, it has been found that there are some drawbacks to this prior art, including in particular with elongated filters, in that pressure hoses must be drawn from the fixed fluid pump to the nozzle of the moving washing machine.

Derved opstår der et tryktab i trykslangerne, som bevirker, at 25 væskepumpens kapacitet skal forøges som funktion af længen af filteret, som skal afrenses.Thereby, a pressure loss occurs in the pressure hoses, which causes the capacity of the liquid pump to increase as a function of the length of the filter to be cleaned.

Problemet forværres ved, at biologiske filtre til rensning af luften i dyrestalde bliver stadig længere, qua stadigt stigende miljøkrav og stadigt 30 større dyrestalde, hvor en filterlængde på op til 50 meter i dag er almindelig anvendt.The problem is aggravated by the fact that biological filters for cleaning the air in animal sheds are getting longer, in terms of ever-increasing environmental requirements and ever-larger 30 sheds, where a filter length of up to 50 meters is widely used today.

2 DK 177286 B12 DK 177286 B1

Med sådanne lange filtre og dermed trykslanger bliver tryktabene i trykslangerne fra væskepumpe til dyse betydelige samtidig med at trykslangerne bliver tunge, hvorved den tilhørende vaskemaskinemekanik 5 skal dimensioneres til at bære den samlede vægt, hvilket naturligvis er et yderligere fordyrende element i produktfremstillingen.With such long filters and thus pressure hoses, the pressure losses in the pressure hoses from liquid pump to nozzle become significant while the pressure hoses become heavy, whereby the associated washing machine mechanics 5 must be dimensioned to carry the total weight, which is of course a further costly element in the product manufacture.

Fra JP2004097936 A kendes desuden en fremgangsmåde til afrensning af filtre fra papirindustrien, hvor et demonteret filter placeres / et væskebassin 10 for afrensning ved brug af en vaskemaskine. Filteret afrenses ved hjælp af vand fra væskebassinet, der via en pumpe og en aktuator ledes videre til et rør, der kan bevæges langs filteret, og som er konstrueret med flere dyser. Pumpen genererer således et væsketryk, der gør det muligt af afrense filteret ved hjælp af spuling. Vaskemaskinen omfatter således dyser 15 forbundet med en væskepumpe, hvor væskepumpen er monteret på vaskemaskinen.JP2004097936 A also discloses a method for cleaning filters from the paper industry, in which a disassembled filter is placed / a liquid pool 10 for cleaning using a washing machine. The filter is purified by means of water from the liquid pool, which is passed via a pump and an actuator to a tube which can be moved along the filter and which is constructed with several nozzles. Thus, the pump generates a fluid pressure which allows the filter to be cleaned by rinsing. The washing machine thus comprises nozzles 15 connected to a liquid pump, where the liquid pump is mounted on the washing machine.

Frengangsmåden ifølge JP2004097936 A kan således ikke anvendes til fastmonterede filtre, som anvendes til afrensning af luften fra dyrestalde, 20 herunder fastmonterede filtre, som er placeret over væskebassinet.Thus, the method of disposition according to JP2004097936 A cannot be used for fixed filters used to purify the air from animal sheds, including fixed filters located above the liquid pool.

Det er derfor et formål med opfindelsen, at forbedre den kendte teknik herunder fremgangsmåde til afrensning af filtre til rensning af luften fra dyrestalde.It is therefore an object of the invention to improve the prior art including method of purifying filters to purify the air from animal sheds.

2525

Opfindelsens formål tilgodeses ved en fremgangsmåde af den i indledningen til krav 1 angivne type, som er karakteristisk ved, at filtrene er placeret over væskebassinet, samt ved at væskepumpen er neddykket i væsken samt ved at vaskemaskinen kan bevæges langs med filtrene.The objects of the invention are met by a method of the type set forth in the preamble of claim 1, characterized in that the filters are located above the liquid basin, and that the liquid pump is immersed in the liquid and that the washing machine can be moved along with the filters.

På denne måde bliver det således muligt at opnå, at trykslangen fra 30 3 DK 177286 B1 væskepumpen til dysen kun skal have en længde, der giver mulighed for at dysen bevæges vertikalt, og således er uafhængig af længden af filteret, som skal vaskes.In this way, it is thus possible to obtain that the pressure hose from the liquid pump to the nozzle must only have a length which allows the nozzle to move vertically and thus is independent of the length of the filter to be washed.

5 Øvrige hensigtsmæssige udførelsesformer for fremgangsmåden er angivet i krav 2.Other suitable embodiments of the method are set forth in claim 2.

Opfindelsen skal herefter nærmere forklares under henvisning til tegningen: 10 Fig. 1 som viser en principtegning for en vaskemaskine fremstillet i henhold til opfindelsen, hvor en væskepumpe er monteret på vaskemaskinen og neddykket i væsken, som anvendes til filterafrensningen.The invention will now be explained in more detail with reference to the drawing: FIG. 1 which shows a principle drawing of a washing machine made according to the invention, where a liquid pump is mounted on the washing machine and immersed in the liquid used for the filter cleaning.

På fig. 1 er med 1 betegnet vist en vaskemaskine, som via hjul 11,12, der 15 styres af skinner 13,14, placeret langs et filter 2, kan bevæges som anført ved pilen 15 i filterets 2 længderetning.In FIG. 1, 1 is shown a washing machine which can be moved along wheels 11,12, guided by rails 13,14, along a filter 2, as indicated by arrow 15 in the longitudinal direction of the filter 2.

Bevægelsen 15 kan styres af en motor, som driver et eller flere af hjulene 11,12.The movement 15 can be controlled by a motor which drives one or more of the wheels 11, 12.

2020

Vaskemaskinen 1 er forsynet med en dyse 5, der er monteret til en glidemekanisme 8, som via eksempelvis en lineær aktuator 9 kan bevæges vertikalt langs filterets 2 højde, som anført ved pilen 10.The washing machine 1 is provided with a nozzle 5 which is mounted to a sliding mechanism 8 which can be moved vertically along, for example, a linear actuator 9 along the height of the filter 2, as indicated by the arrow 10.

25 Hermed kan dysen 5 bevæges over hele filterets 2 flade, og derved afrense filteret 2 med væske 6, som via væskepumpen 16 udsprøjtes fra dysen 5 med et hensigtsmæssigt tryk.Hereby the nozzle 5 can be moved over the entire surface of the filter 2, thereby cleaning the filter 2 with liquid 6, which is sprayed from the nozzle 5 by a suitable pressure via the liquid pump 16.

Som det vil fremgå af fig. 1, er der under filterets 2 i længderetningen 30 placeret et bassin 18, der indeholder væske 3, som anvendes til afrensning af filteret 2.As will be seen from FIG. 1, under the longitudinal direction 30 of the filter 2, a basin 18 containing liquid 3 is used which is used for cleaning the filter 2.

4 DK 177286 B1 På den bevægelige vaskemaskine 1 er der nederst placeret en væskepumpe 16, som i fig. 1 er vist neddykket under overfladen 19 af væsken 3.4 DK 177286 B1 On the movable washing machine 1 is located at the bottom a liquid pump 16, which in FIG. 1 is shown submerged below the surface 19 of the liquid 3.

5 Når væskepumpen 16 placeres på den bevægelige vaskemaskine 1 opnås, at der kun skal trækkes an relativ kort trykslange 17 fra væskepumpen 16 til dysen 5, som er uafhængig af filterets 2 længde.5 When the liquid pump 16 is placed on the moving washing machine 1, it is achieved that only a relatively short pressure hose 17 must be drawn from the liquid pump 16 to the nozzle 5, which is independent of the length of the filter 2.

10 Det er let at trække et strømkabel til væskepumpen 16, idet der kendes mange både billige og robuste teknikker til dette herunder eksempelvis anvendelse af kabelskinner.It is easy to pull a power cable to the liquid pump 16, as many cheap and robust techniques are known for this, including for example the use of cable rails.

I en fortrukket udførelsesform kører vaskemaskinen 1 automatisk og renser 15 hele filteret 2.In a preferred embodiment, the washing machine 1 runs automatically and cleans the entire filter 2.

Vaskemaskinen 1 kan styres med simple timere og mekaniske endestop, eller mere optimeret via computerprogrammer, som bl.a. kan styre vaskemaskinen 1 efter parametre såsom tryktabet over filteret 2.The washing machine 1 can be controlled with simple timers and mechanical end stops, or more optimized via computer programs, such as can control the washing machine 1 according to parameters such as the pressure loss over the filter 2.

2020

Det er en yderligere fordel ved opfindelsen, at væskepumpen 16 qua placeringen på den bevægelige vaskemaskine 1 flyttes med vaskemaskinens 1 bevægelse, og derfor ikke konstant suger væske 3 fra samme område i bassinet 3, som det normalt sker ved den hidtil kendte 25 teknik.It is a further advantage of the invention that the liquid pump 16 in the location of the moving washing machine 1 is moved with the movement of the washing machine 1, and therefore does not constantly suck liquid 3 from the same area in the basin 3, as it usually does in the prior art.

Hvis der konstant suges væske fra samme område i bassinet 3, kan der opstå driftsproblemer ved lokal ophobning af afvasket skidt nær væskepumpesug området.If fluid from the same area is constantly being sucked into the basin 3, operating problems may arise from local accumulation of washed dirt near the liquid pump suction area.

Det er hensigtsmæssigt at fremstille vaskemaskinen i materialer, som er 30 5 DK 177286 B1 modstandsdygtige overfor korrosion, hvorfor mange komponenter fremstilles i rustfaste legeringer og/eller polymere materialer.It is convenient to manufacture the washing machine in materials that are resistant to corrosion, which is why many components are made of stainless alloys and / or polymeric materials.

Med opfindelsen opnås, at en vaskemaskine kan konstrueres og fremstilles 5 alene efter et filters 2 højde, mens vaskemaskinen i princippet bliver uafhængig af filterets 2 længde.The invention provides that a washing machine can be designed and manufactured 5 only at the height of a filter 2, while the washing machine is in principle independent of the length of the filter 2.

Det eneste som konstruktionsmæssigt skal ændres ved vaskemaskinen som følge af længden af filteret 2, som skal afrenses, er længden af kablet, 10 som skal strømforsyne vaskemaskinen 1.The only thing that needs to be changed in the design of the washing machine as a result of the length of the filter 2 to be cleaned is the length of the cable 10 which is to supply the washing machine 1.

Vaskemaskinen 1 er særligt egnet til anvendelse til biologiske filtre der renser og filtrerer luften fra dyrestalde.The washing machine 1 is particularly suitable for use with biological filters that purify and filter the air from animal sheds.

15 20 25 3015 20 25 30

Claims

A method of purifying biological filters (2) for filtering the air from animal sheds, using a washing machine (1) comprising at least one nozzle (5) connected to a liquid pump (16) which purifies the filters (2) at flushing of liquid (3) from a liquid pool (18), characterized in that the filters (2) are placed above the liquid pool (18), and that the liquid pump (16) is immersed in the liquid (3) and that the washing machine (1) can be moved along with the filters (2).

Process according to claim 1, characterized in that the cleaning is automated. v DK 177286 B1 ΙΟ 9 y i-1— / Λ \ /. i ι Λ / / / y, \ / 'l5.,' 'V-V' —► '/ 5 ~ V - —fe - - 1 ° \ Fig. 1 \ r \ \ \ '6 -,; 'M 5 1¾ Ife 1/1