SE433073B - DEVICE FOR CLEANING OF LIQUID MEDIA, LIKE THE WASTE WATER - Google Patents

DEVICE FOR CLEANING OF LIQUID MEDIA, LIKE THE WASTE WATER

Info

Publication number
SE433073B
SE433073B SE8302442A SE8302442A SE433073B SE 433073 B SE433073 B SE 433073B SE 8302442 A SE8302442 A SE 8302442A SE 8302442 A SE8302442 A SE 8302442A SE 433073 B SE433073 B SE 433073B
Authority
SE
Sweden
Prior art keywords
drum
outlet
cleaning
housing
screen drum
Prior art date
Application number
SE8302442A
Other languages
Swedish (sv)
Other versions
SE8302442D0 (en
Inventor
Karl Johan Borje Hellman
Original Assignee
Karl Johan Borje Hellman
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 Karl Johan Borje Hellman filed Critical Karl Johan Borje Hellman
Priority to SE8302442A priority Critical patent/SE433073B/en
Publication of SE8302442D0 publication Critical patent/SE8302442D0/en
Priority to PCT/SE1984/000161 priority patent/WO1984004293A1/en
Priority to EP84902096A priority patent/EP0151127A1/en
Publication of SE433073B publication Critical patent/SE433073B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/50—Cleaning
    • B07B1/55—Cleaning with fluid jets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
    • B01D29/03—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting
    • B01D29/035—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements self-supporting with curved filtering elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/44—Edge filtering elements, i.e. using contiguous impervious surfaces
    • B01D29/445—Bar screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/60—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor integrally combined with devices for controlling the filtration
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62—Regenerating the filter material in the filter
    • B01D29/64—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element
    • B01D29/6469—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers
    • B01D29/6476—Regenerating the filter material in the filter by scrapers, brushes, nozzles, or the like, acting on the cake side of the filtering element scrapers with a rotary movement with respect to the filtering element
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/94—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
    • 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
    • B01D33/073—Filters with filtering elements which move during the filtering operation with rotary cylindrical filtering surfaces, e.g. hollow drums arranged for inward flow filtration
    • 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
    • B01D33/48—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D33/50—Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • 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
    • B01D33/70—Filters with filtering elements which move during the filtering operation having feed or discharge devices
    • B01D33/76—Filters with filtering elements which move during the filtering operation having feed or discharge devices for discharging the filter cake, e.g. chutes
    • 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
    • B01D33/801—Driving means, shaft packing systems or the like
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2201/00—Details relating to filtering apparatus
    • B01D2201/28—Position of the filtering element
    • B01D2201/282—Filtering elements with a horizontal rotation or symmetry axis

Description

15 ZÛ -25 30 40 8302442-2 tjocka slammet. När slammet på detta sätt uppnått en önskad förtjockningsgrad, kan det tömmas ur anordningen genom ytter- ligare ett utlopp vid höljets botten. 15 ZU -25 30 40 8302442-2 thick sludge. When the sludge has in this way reached a desired degree of thickening, it can be emptied from the device through another outlet at the bottom of the casing.

Utföringsexempel av uppfinningen beskrivs närmare nedan med hänvisning till bifogade ritningar, på vilka fig. 1 visar delvis i snitt och med bortbrutna delar en sidovy av en anord- ning enligt uppfinningen, fig. 2 ett snitt längs linjen II-II i fig. 1, fig. 3 en siltrumma, och fig. 4 visar schematiskt en inifrån höljet betraktad alternativ lagring av siltrumman vid höljet.Embodiments of the invention are described in more detail below with reference to the accompanying drawings, in which Fig. 1 shows, partly in section and with broken away parts, a side view of a device according to the invention, Fig. 2 a section along the line II-II in Fig. 1, Fig. 3 shows a sieve drum, and Fig. 4 schematically shows an alternative storage of the sieve drum at the casing viewed from inside the casing.

Den i fig. 1 och 2 visade anordníngen är innesluten i ett hölje som avgränsas huvudsakligen av plana plåtväggar, närmare bestämt en bakvägg 10 vid höljets in1oppssida,.ett par motsatta gavelväggar 11, 12, en undre frontvägg 13, en på avstånd från denna anordnad övre frontvägg 14 och en från bakväggen 10 mot den undre frontväggen 13 sluttande bottenvägg 15. Höljets ovan- sida är övertäckt av ett par uppfällbara lock 16, 17. ' Vid den undre delen av höljets bakvägg 10 finns ett in- lopp 18, som kan vara utbildat med en cylindrísk rörstuts enligt fig. 1, men som vid behov även kan sträcka sig över bakväggens 10 hela bredd. . _ Vid höljet är även anordnade tre utlopp för de komponenter som skall separeras från varandra under reningsförloppet, nämligen ett silvattenutlopp 19, ett rensutlopp 20 och ett slamutlopp 21.The device shown in Figs. 1 and 2 is enclosed in a housing which is delimited mainly by flat sheet metal walls, more particularly a rear wall 10 at the inlet side of the housing, a pair of opposite end walls 11, 12, a lower front wall 13, a distance arranged therefrom upper front wall 14 and a bottom wall 15 sloping from the rear wall 10 towards the lower front wall 13. The upper side of the housing is covered by a pair of folding lids 16, 17. At the lower part of the rear wall 10 of the housing there is an inlet 18, which can be formed with a cylindrical pipe socket according to Fig. 1, but which if necessary can also extend over the entire width of the rear wall 10. . At the housing, three outlets are also arranged for the components to be separated from each other during the purification process, namely a silver water outlet 19, a purification outlet 20 and a sludge outlet 21.

Silvattenutloppet 19 är utbildat som en öppning med en anslutande rörstuts vid den högra gavelväggen 11. Rensutloppet 20 är av- _ gränsat i det rektangulära området mellan de båda frontväggarna 13, 14 och intilliggande gavelväggspartier. Slamutloppet 21 som är avsett att vara tillslutet under anordningens drift för att öppnas vid tömning av uppsamlat slam, visas som en till höljets undersida via ett uppåt vidgat tråg 22 ansluten rörstuts.The screen water outlet 19 is formed as an opening with a connecting pipe socket at the right end wall 11. The cleaning outlet 20 is delimited in the rectangular area between the two front walls 13, 14 and adjacent end wall portions. The sludge outlet 21, which is intended to be closed during the operation of the device to be opened when emptying collected sludge, is shown as a pipe socket connected to the underside of the casing via an upwardly widened trough 22.

Inuti höljet finns ett mellan gavelväggarna 11 och 12 anordnat rensgaller 23, som avskiljer ínloppet 18 och rensutloppet 20 från sílutloppet 19 och slamutloppet 21. Rensgallret 23 består av ett flertal pä jämna inbördes avstånd anordnade stålbågar 24, vilka sträcker sig från bottenväggen 1Ssi närheten av inloppet 18 till den undre frontväggens 13 övre kant. _ Mellan rensgallret 23 och slamutloppet 21 är anordnad en siltrumma 25 som i sin tur avskiljer silutloppet-19 från slam- utloppet 21. Siltrumman 25 sträcker sig axiellt mellan gavel- 10 15 25 40 8302442-2 3 väggarna 11 och 12 i nära anslutning till rensgallret 23 och innefattar ett par halvcylindriska silplåtar 26 (fig. 3) med sílhål 27 av lämplig fördelning och storlek. De halvcylindríska silplåtarnas 26 axíella ändar är förbundna, t.ex. skruvade, med varsin ringfälg 28, vilka i sin tur via ekrar 29 är förbundna med varsitt nav 30 och 32 med axeltappar 31 resp. 33, som på ej närmare visat sätt är lagrade vid gavelväggarna 11 och 12.Inside the housing there is a cleaning grid 23 arranged between the end walls 11 and 12, which separates the inlet 18 and the cleaning outlet 20 from the sieve outlet 19 and the sludge outlet 21. The cleaning grid 23 consists of a plurality of evenly spaced steel arches 24 extending from the bottom wall 18 to the upper edge of the lower front wall 13. Arranged between the cleaning grid 23 and the sludge outlet 21 is a sieve drum 25 which in turn separates the sieve outlet-19 from the sludge outlet 21. The sieve drum 25 extends axially between the gable walls 11 and 12 in close proximity to the cleaning grid 23 and comprises a pair of semi-cylindrical screen plates 26 (Fig. 3) with screen holes 27 of suitable distribution and size. The axial ends of the semi-cylindrical screen plates 26 are connected, e.g. screwed, each with ring rim 28, which in turn are connected via spokes 29 to respective hubs 30 and 32 with axle pins 31 and 31, respectively. 33, which are stored in a manner not shown in more detail at the end walls 11 and 12.

Den i fig. 3 högra axeltappen 31 är utbildad ihålig för upptag- ning av ett inuti siltrumman anordnat spríttsvattenrör 38 som kommer att beskrivas ytterligare nedan, under det att den vänstra axeltappen 33 är inkopplad med ett drivaggregat 34 med en el~ motor.The right shaft pin 31 in Fig. 3 is formed hollow for receiving a spray water pipe 38 arranged inside the screen drum, which will be described further below, while the left shaft pin 33 is connected to a drive unit 34 with an electric motor.

Mellan silplåtarnas 26 períferiella ändar framskjuter över trummans hela längd ett par diametralt motsatta uppsättningar rens- stavar 35. Dessa är i det visade exemplet utbildade som kammar på ett par lángsträckta plattor 36, 36 vilkas ytterändar är t.ex. fastsvetsade vid ekrarna 29 och ringfälgarna 28. Å Kammarna 35 har sådan axiell bredd, t.ex. 20 mm, och är anordnade på sådant inbördes avstånd att de precis passar in mellan rensgallrets 23 bågar 24. Under trummans 25 rotation i pilens 37 riktning framskjuter kammarna 35 genom och förbi gal- lret 23-från en punkt något framför och nedanför inloppet 18 till en punkt något ovanför den undre frontväggens 13 övre kant, där gallret 23 befinner sig på något större avstånd från trummans 25 periferi.Between the peripheral ends of the screen plates 26, over the entire length of the drum, a pair of diametrically opposite sets of cleaning rods 35 protrude. These are in the example shown formed as combs on a pair of elongate plates 36, 36 whose outer ends are e.g. welded to the spokes 29 and ring rims 28. Å The cams 35 have such an axial width, e.g. 20 mm, and are arranged at such a mutual distance that they fit exactly between the arches 24 of the cleaning grid 23. During the rotation of the drum 25 in the direction of the arrow 37, the cams 35 project through and past the grid 23 from a point slightly in front of and below the inlet 18 to a point slightly above the upper edge of the lower front wall 13, where the grid 23 is at a slightly greater distance from the periphery of the drum 25.

Det ovannämnda sprítsröret 38 är avsett att inkopplas med vatten under tryck och sträcker sig från gavelväggens 11 utsida, genom den ihåliga axeltappen 31, radiellt snett uppåt mot trum- mans 25 innerperiferí och axiellt längs denna för att avslutas något innanför trummans motsatta gavel där dess rörände är till- sluten. Utefter trummans insida har spritsröret 38 ett flertal, radíella ej visade munstycken eller öppningar, genom vilka vatten kan sprutas mot sílplåtarnas 26 insidor för att hindra att sil- hålen 27 igentäppes under anordningens drift.The above-mentioned spray pipe 38 is intended to be connected with water under pressure and extends from the outside of the end wall 11, through the hollow shaft pin 31, radially obliquely upwards towards the inner periphery of the drum 25 and axially along it to terminate slightly inside the opposite end of the drum. is closed. Along the inside of the drum, the spray tube 38 has a plurality of radial nozzles or openings (not shown), through which water can be sprayed against the insides of the strainer plates 26 to prevent the strainer holes 27 from clogging during operation of the device.

I fig. 4 visas ett vertikalsnítt inifrån höljet mot den ena gavelväggen 11 av en alternativt lagrad siltrumma. Síltrummans ringfälg 28 är i detta fall utvändigt rullagrad på ett antal hjul 40, vilka i sin tur är lagrade vid gavelväggen 11 och av vilka ett vid varje gavel är inkopplat med en ej visad drivmotor. Genom detta arrangemang kan spritsröret 39 utan hinder av ekrar dragas .. var' 10 15 20 ut 8302442-2 7 rakt genom den ena eller båda gavelväggarna 11 resp. 10. Om så erfordras kan hjulen 40 ersättas av kugghjul, under det att ringfälgarna 28 förses med utvändiga kuggbanor.Fig. 4 shows a vertical section from the inside of the casing towards one end wall 11 of an alternatively stored sieve drum. The ring rim 28 of the screen drum is in this case externally roller-bearing on a number of wheels 40, which in turn are mounted at the end wall 11 and one of which is connected at each end with a drive motor (not shown). By this arrangement the spray pipe 39 can be pulled without hindrance by spokes .. was straight out through one or both end walls 11 resp. 10. If required, the wheels 40 can be replaced by gears, while the ring rims 28 are provided with external gear tracks.

Anordníngen installeras lämpligen nedsänkt vid drift~ stället, så att dess ovansida ligger i plan med underlaget, t.ex. ett golv i ett reningsverk. Vid större reningsanläggningar kan höljet bestå av platsgjuten betong.The device is suitably installed submerged at the operating site, so that its upper side is flush with the ground, e.g. a floor in a treatment plant. For larger treatment plants, the casing can consist of cast-in-place concrete.

Den ovan beskrivna anordningen är avsedd att arbeta enligt följande. 7 I Det medium som skall renas inträder i anordningen genom inloppet 18 och uppfyller höljets inre ungefär till nivån för siltrummans axel, varvid grövre föroreningar fastnar på rens- gallret 23 för att medbringas av siltrummans rensstavar 25 till gallrets 23 motsatta sida, där de faller ut genom rensutloppet 20. Det på detta sätt rensade mediet silas sedan genom siltrummans silhål 27 och strömmar därefter axiellt ut ur trummans öppna gavel genom silvattenutloppet 19. De föroreningar som ej förmår passera genom siltrumman ZS, vilken kontinuerligt renspolas med hjälp av sprítsröret 38, faller ned och sedimenteras under slam- bildning på höljets botten. När slamnivån efter en tid når upp till stavarnas 35 undre rörelsebana, kommer dessa att agitera slammet som därigenom suocessivt förtjockas. När slammet erhållit önskad förtjockníngsgrad avlägsnas det ur höljet genom slamut- loppet 21. I . .zn-r- -. V .w >-.r_^.__ » Hsii" The device described above is intended to operate as follows. The medium to be cleaned enters the device through the inlet 18 and fills the interior of the casing approximately to the level of the screen of the screen drum, with coarser contaminants adhering to the cleaning grid 23 to be carried by the cleaning rods 25 of the screen drum to the opposite side of the grid 23, where they fall out. through the purge outlet 20. The medium thus cleaned is then filtered through the sieve hole 27 of the sieve drum and then flows axially out of the open end of the drum through the sieve water outlet 19. The contaminants which are unable to pass through the sieve drum ZS, which are continuously purged by the spray pipe 38, fall down and settles during sludge formation on the bottom of the casing. When the sludge level after a time reaches the lower path of movement of the rods 35, these will agitate the sludge, which is thereby suocessively thickened. When the sludge has reached the desired degree of thickening, it is removed from the casing through the sludge outlet 21. I. .zn-r- -. V .w> -. R _ ^ .__ »Hsii"

Claims (3)

8302442-2 "Patentkrav8302442-2 "Patent claims 1. Anordning för rening av flytande medier, såsom avlopps- vatten, innefattande ett tràgformigt hölje med en roterande driven horisontell siltrumma, k ä n n e t e c k n a d av ett inlopp (18) och ett första utlopp (20) anordnade i höljet, ett flertal från siltrummans (25) períferí utskjutande och på inbördes axiellt avstånd anordnade renselement (35), ett siltrumman (25) från ínloppet (18) och det första ut- loppet (20) avgränsande rensgaller (23) bestående av ett flertal på inbördes avstånd anordnade gallerelement (24), mellan vilka rens- elementen (35) framskjuter under síltrummans (25) rotation, ett i höljet anordnat andra utlopp (19) vid åtminstone den ena av síltrummans (ZS) båda gavlar, och ett i höljets undre del anordnat tredje utlopp (21).A device for purifying liquid media, such as waste water, comprising a trough-shaped casing with a rotating driven horizontal screen drum, characterized by an inlet (18) and a first outlet (20) arranged in the housing, a plurality of the screen drum ( 25) peripherally projecting and axially spaced cleaning elements (35), a screen drum (25) from the inlet (18) and the first outlet (20) delimiting cleaning grilles (23) consisting of a plurality of spaced apart grill elements (24) ), between which the cleaning elements (35) project during the rotation of the herring drum (25), a second outlet (19) arranged in the housing at at least one of the two ends of the herring drum (ZS), and a third outlet (21) arranged in the lower part of the housing. ). 2. Anordning enligt krav 1, k ä n n e t e c k n a d av att ínloppet (18) och det första utloppet (20) är belägna på vardera sidan om siltrummans (25) axel och att rensgallret sträcker sig mellan dessa runt síltrummans (25) ovansida.Device according to claim 1, characterized in that the inlet (18) and the first outlet (20) are located on each side of the shaft of the screen drum (25) and that the cleaning grid extends between them around the top of the screen drum (25). 3. Anordning enligt krav 1 eller 2, k ä n n e t e c k n a d av ett vid síltrummans (25) insida anordnat sprítsrör (38;39) för renspolning av silbål (27) på trummans periferi medelst tryckfluid.Device according to claim 1 or 2, characterized by a spray pipe (38; 39) arranged at the inside of the sieve drum (25) for flushing the sieve trunk (27) on the periphery of the drum by means of pressure fluid.
SE8302442A 1983-04-29 1983-04-29 DEVICE FOR CLEANING OF LIQUID MEDIA, LIKE THE WASTE WATER SE433073B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
SE8302442A SE433073B (en) 1983-04-29 1983-04-29 DEVICE FOR CLEANING OF LIQUID MEDIA, LIKE THE WASTE WATER
PCT/SE1984/000161 WO1984004293A1 (en) 1983-04-29 1984-04-27 A device for purification of liquid media such as waste water
EP84902096A EP0151127A1 (en) 1983-04-29 1984-04-27 A device for purification of liquid media such as waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE8302442A SE433073B (en) 1983-04-29 1983-04-29 DEVICE FOR CLEANING OF LIQUID MEDIA, LIKE THE WASTE WATER

Publications (2)

Publication Number Publication Date
SE8302442D0 SE8302442D0 (en) 1983-04-29
SE433073B true SE433073B (en) 1984-05-07

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
SE8302442A SE433073B (en) 1983-04-29 1983-04-29 DEVICE FOR CLEANING OF LIQUID MEDIA, LIKE THE WASTE WATER

Country Status (3)

Country Link
EP (1) EP0151127A1 (en)
SE (1) SE433073B (en)
WO (1) WO1984004293A1 (en)

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BE1004919A3 (en) * 1990-11-29 1993-02-23 Joskin Ets SLURRY FILTER OR OTHER LIQUID.
SE503981C2 (en) * 1994-12-22 1996-10-14 Kvaerner Pulping Tech Apparatus for separating undesirable particles from a suspension stream
SE508293C2 (en) * 1997-01-17 1998-09-21 Kvaerner Pulping Tech Screening device for sieving liquid from a black liquor mixing tank containing solid particles of ash
FI105931B (en) * 1997-09-29 2000-10-31 Bothnia P & P Oy Mechanical self-cleaning strainer
FR2817486B1 (en) * 2000-12-04 2003-09-05 Poitevine De Filtration Soc INCREASE IN THE ADMISSIBLE FLOW RATE BY ROTARY DRUM SCREENERS
CN108159755B (en) * 2018-03-22 2023-10-10 广东恒田过滤设备有限公司 Automatic non-blocking filter

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EP0151127A1 (en) 1985-08-14
SE8302442D0 (en) 1983-04-29
WO1984004293A1 (en) 1984-11-08

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