NO134516B - - Google Patents
Download PDFInfo
- Publication number
- NO134516B NO134516B NO4518/73A NO451873A NO134516B NO 134516 B NO134516 B NO 134516B NO 4518/73 A NO4518/73 A NO 4518/73A NO 451873 A NO451873 A NO 451873A NO 134516 B NO134516 B NO 134516B
- Authority
- NO
- Norway
- Prior art keywords
- flaps
- press
- outlet
- screw
- pressure
- Prior art date
Links
- 239000004744 fabric Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013013 elastic material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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
- B30B9/12—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 pressing worms or screws co-operating with a permeable casing
- B30B9/18—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 pressing worms or screws co-operating with a permeable casing with means for adjusting the outlet for the solid
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Press Drives And Press Lines (AREA)
- Diaphragms And Bellows (AREA)
- Paper (AREA)
Description
Prinsipielt er skruepresser for avvanning av masser oppbygget med en skrue som er anordnet i en pressekurv. Stoffet som skal presses mates inn i den ene enden av skruepressen og går ut i den andre enden, utløpsenden. Den ønskede presseeffekt oppnås ved at skruens kjernediameter øker i frem-matningsretningen, eventuelt ved at kjernediameteren er konstant og pressekurvens diameter avtar. Ved stoffutløpet er det vanlig å ha en mottrykksanordning, d.v.s. en anordning som gir en trykkøkning ved pressens utløpsende. Dette oppnås vanligvis ved å redusere stoffutløpsarealet, hvorved det oppnås en lokal opp-stuving av stoffet og en tilsvarende trykkøkning ved pressens utløpsende. In principle, screw presses for dewatering pulp are constructed with a screw arranged in a press basket. The material to be pressed is fed into one end of the screw press and exits at the other end, the discharge end. The desired pressing effect is achieved by the core diameter of the screw increasing in the feed direction, or by the core diameter being constant and the diameter of the press curve decreasing. At the fabric outlet, it is common to have a back pressure device, i.e. a device that gives a pressure increase at the outlet end of the press. This is usually achieved by reducing the fabric outlet area, which results in a local build-up of the fabric and a corresponding increase in pressure at the outlet end of the press.
Foreliggende oppfinnelse tar sikte på å tilveie-bringe en mottrykksanordning som arbeider på den måten at stoffutløpsarealet reduseres. The present invention aims to provide a back pressure device which works in such a way that the material outlet area is reduced.
Fra norsk patentskrift nr. 44 206 er det kjent en anordning ved utløp for skruepresser, hvor det er svingbart opp-lagret klaffer. Det tyske Offenlegungsschrift nr. 1 931 474 viser flere svingbare klaffer anordnet ved omkretsen. Klaffene er styrt hydraulisk. Mottrykksanordninger er også eksempelvis kjent ifra U.S. patentskrift nr. 2 064 557 og 3 065 689. I steden for klaffer benyttes det der belger eller ringer som kan blåses opp. From Norwegian patent document no. 44 206, a device is known at the outlet of screw presses, where there is a pivotably supported flap. German Offenlegungsschrift No. 1 931 474 shows several pivotable flaps arranged at the periphery. The flaps are controlled hydraulically. Counter pressure devices are also known, for example, from U.S. Pat. patent no. 2 064 557 and 3 065 689. Instead of flaps, bellows or rings are used which can be inflated.
Med utgangspunkt i denne kjente teknikkens stand er det ifølge oppfinnelsen tilveiebragt en mottrykksanordning for skruepresse for avvanning av masse, innbefattende flere langs omkretsen av presseutløpet i radialplan svingbart anordnede, trykkpåvirkede klaffer, og det som kjennetegner mottrykksanordningen ifølge oppfinnelsen er at klaffene er montert på et felles, ringformet belgorgan som er tilknyttet en trykkilde. Based on this state of the art, according to the invention, a back pressure device for a screw press for dewatering pulp is provided, including several pressure-affected flaps pivotably arranged along the circumference of the press outlet in the radial plane, and what characterizes the back pressure device according to the invention is that the flaps are mounted on a common , ring-shaped bellows member which is connected to a pressure source.
Med en slik utførelse kan man oppnå den ønskede redusering av stoffutløpsarealet ved å tilpasse trykket i belgorganet til driftsforholdene, og man oppnår også den store for-del at samtidig som klaffene påvirkes av en og samme kraftinn-retning, kan de enkelte klaffer etter behov svinge unna, hvil-ket er av betydning når f.eks. hårde bestanddeler foreligger. Utbytting av nedslitte klaffer kan også foretas på en enkel måte. Eventuelt kan man også bytte ut samtlige klaffer med klaffer av annen størrelse eller form, og derved blir mottrykksanordningen mere universelt innstillbar og anvendbar. With such a design, you can achieve the desired reduction of the fabric outlet area by adapting the pressure in the bellows to the operating conditions, and you also achieve the great advantage that at the same time as the flaps are affected by one and the same power device, the individual flaps can swing as needed away, which is important when e.g. hard components are present. Worn flaps can also be replaced in a simple way. Optionally, all the flaps can also be replaced with flaps of a different size or shape, thereby making the back pressure device more universally adjustable and applicable.
Oppfinnelsen skal forklares nærmere under henvis-ning til tegningene hvor The invention shall be explained in more detail with reference to the drawings where
Fig. 1 viser et delvis gjennomskåret sideriss av en skruepresse, Fig. 2 viser mottrykksanordningen sett mot selve skruepressen, og Fig. 3 viser et snitt i større målestokk gjennom mottrykksanordningen. Fig. 1 shows a partially cut side view of a screw press, Fig. 2 shows the counter pressure device seen against the screw press itself, and Fig. 3 shows a section on a larger scale through the counter pressure device.
I fig. 1 er det vist en skruepresse med et hus 1 på et fundament 2. Skruepressens innløp er betegnet med 3 og dens utløp er betegnet med 4. Skruen er betegnet med 5 og pres-sekurven er betegnet med 6. Skruen 5 er forlenget gjennom ut-løpskassen 7 og er forsynt med en akseltapp 8 for tilkobling til en drivinnretning. In fig. 1 shows a screw press with a housing 1 on a foundation 2. The inlet of the screw press is denoted by 3 and its outlet is denoted by 4. The screw is denoted by 5 and the press curve is denoted by 6. The screw 5 is extended through the the running box 7 and is provided with a shaft pin 8 for connection to a drive device.
Rundt presseutløpet er det montert et ringformet belgorgan 9- Belgorganets oppbygging er vist nærmere i fig. 3 hvor det fremgår at belgorganet er oppbygget med en stiv ring 10 og en med ringen sammenspent, ringformet belg 11 av et egnet elastisk materiale. I ringen 10 er det flere langs omkretsen fordelte gjengeboringer 12 som korresponderer med boringer 13 A ring-shaped bellows member is mounted around the press outlet 9- The structure of the bellows member is shown in more detail in fig. 3, where it appears that the bellows is constructed with a rigid ring 10 and an annular bellows 11 clamped together with the ring, made of a suitable elastic material. In the ring 10 there are several threaded bores 12 distributed along the circumference which correspond to bores 13
i veggen 14 i utløpskassen 7. Ved hjelp av skruer (ikke vist) "kan ringen 10 og derved belgorganet spennes fast inne i utløps-kassen, rundt presseutløpet 4. I en av gjengeboringene 12 kan det innskrus en ledning (ikke vist) som fører til en trjrkkilde med tilhørende reguleringsutstyr slik at derved belgens 11 indre kan settes under et ønsket trykk. in the wall 14 of the outlet box 7. With the help of screws (not shown), the ring 10 and thereby the bellows can be fastened inside the outlet box, around the press outlet 4. In one of the threaded holes 12, a wire (not shown) can be screwed in which leads to a pressure source with associated regulation equipment so that the interior of the bellows 11 can thereby be placed under a desired pressure.
Monteringen av klaffene 15, som i snitt har L-form, med et sentralt avstivende steg 16, skjer på samme måte for .-samtlige klaffer og her skal bare monteringen av den i fig. 3 viste klaff beskrives. Monteringen skjer ved hjelp av fire skruer 17 som er ført gjennom en motholdsplate 18 inne i bel-gen 11 og gjennom det ene benet på klaffen 15. På skruene er det skrudd muttere som vist i fig. 3> The assembly of the flaps 15, which have an L-shape in section, with a central stiffening step 16, takes place in the same way for all flaps and here only the assembly of the one in fig. 3 flap shown is described. The assembly takes place by means of four screws 17 which are passed through a counter-holding plate 18 inside the bellows 11 and through one leg of the flap 15. Nuts are screwed onto the screws as shown in fig. 3>
Med stiplede linjer er det i fig. 3 antydet be-vegelsesmuligheter for de enkelte klaffer, i avhengighet av det trykk som hersker inne i belgorganet 9 og det trykk som stoffet som kommer i utløpet 4, utøver. With dashed lines, it is in fig. 3 indicated movement possibilities for the individual flaps, depending on the pressure that prevails inside the bellows member 9 and the pressure that the substance coming into the outlet 4 exerts.
På skruen 5 er det anordnet en ring 20 som danner en skråflate 21 mot utløpet 4 og samvirker med klaffene 15 for regulering av stoffutløpsarealet. A ring 20 is arranged on the screw 5 which forms an inclined surface 21 towards the outlet 4 and cooperates with the flaps 15 to regulate the fabric outlet area.
Claims (1)
Priority Applications (11)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO4518/73A NO134516C (en) | 1973-11-27 | 1973-11-27 | |
US513508A US3911809A (en) | 1973-11-27 | 1974-10-09 | Counter pressure means for a screw press |
CA211,245A CA1017999A (en) | 1973-11-27 | 1974-10-11 | Counter pressure means for a screw press |
IT28439/74A IT1022885B (en) | 1973-11-27 | 1974-10-15 | MEANS OF COUNTERPRESSION FOR AUGER PRESS |
SE7413109A SE421188B (en) | 1973-11-27 | 1974-10-17 | SCREW PRESSURE DEVICE |
FR7435078A FR2252211B1 (en) | 1973-11-27 | 1974-10-18 | |
DE2449483A DE2449483C2 (en) | 1973-11-27 | 1974-10-19 | Counter pressure device for a screw press for dewatering moist masses |
FI3195/74A FI59947C (en) | 1973-11-27 | 1974-10-31 | MOTTRYCKSANORDNING FOER SKRUBPRESSAR |
JP12498274A JPS5442466B2 (en) | 1973-11-27 | 1974-10-31 | |
GB5107274A GB1455350A (en) | 1973-11-27 | 1974-11-26 | Screw press |
ES432348A ES432348A1 (en) | 1973-11-27 | 1974-11-27 | Counter pressure means for a screw press |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO4518/73A NO134516C (en) | 1973-11-27 | 1973-11-27 |
Publications (3)
Publication Number | Publication Date |
---|---|
NO451873L NO451873L (en) | 1975-06-23 |
NO134516B true NO134516B (en) | 1976-07-19 |
NO134516C NO134516C (en) | 1976-10-27 |
Family
ID=19880380
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO4518/73A NO134516C (en) | 1973-11-27 | 1973-11-27 |
Country Status (11)
Country | Link |
---|---|
US (1) | US3911809A (en) |
JP (1) | JPS5442466B2 (en) |
CA (1) | CA1017999A (en) |
DE (1) | DE2449483C2 (en) |
ES (1) | ES432348A1 (en) |
FI (1) | FI59947C (en) |
FR (1) | FR2252211B1 (en) |
GB (1) | GB1455350A (en) |
IT (1) | IT1022885B (en) |
NO (1) | NO134516C (en) |
SE (1) | SE421188B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996013375A1 (en) * | 1994-10-26 | 1996-05-09 | Reime A/S | Device for adjusting counterpressure in a screw press |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2806488A1 (en) * | 1978-02-16 | 1979-08-23 | Dambach Ind Anlagen | DEVICE FOR DRAINING AND COMPACTING SCRAP, MUELL O.DGL. |
SE9500526D0 (en) * | 1995-02-14 | 1995-02-14 | Tetra Laval Holdings & Finance | Device for thickening pulp |
GB2492790B (en) * | 2011-07-12 | 2013-08-07 | New Earth Advanced Thermal Technologies Ltd | Feed compactor variable orifice outlet |
US9610747B2 (en) | 2012-05-25 | 2017-04-04 | Conveyor Eng. & Mfg. Co. | Adjustable compression screw press |
DE102017207310A1 (en) * | 2017-05-02 | 2018-11-08 | Röhren- Und Pumpenwerk Bauer Ges.M.B.H. | Apparatus and method for the treatment of pulp, in particular manure |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3064557A (en) * | 1959-07-15 | 1962-11-20 | Bauer Bros Co | Flow restrainer |
FR1240912A (en) * | 1959-11-16 | 1960-09-09 | Continuous screw-type press-wringer with progressive adjustment during operation | |
DE1442958A1 (en) * | 1964-07-08 | 1968-12-05 | Adolf Zimmermann Maschb Fa | Device for axially closing the outlet end of the screw tube of a screw conveyor |
-
1973
- 1973-11-27 NO NO4518/73A patent/NO134516C/no unknown
-
1974
- 1974-10-09 US US513508A patent/US3911809A/en not_active Expired - Lifetime
- 1974-10-11 CA CA211,245A patent/CA1017999A/en not_active Expired
- 1974-10-15 IT IT28439/74A patent/IT1022885B/en active
- 1974-10-17 SE SE7413109A patent/SE421188B/en not_active IP Right Cessation
- 1974-10-18 FR FR7435078A patent/FR2252211B1/fr not_active Expired
- 1974-10-19 DE DE2449483A patent/DE2449483C2/en not_active Expired
- 1974-10-31 JP JP12498274A patent/JPS5442466B2/ja not_active Expired
- 1974-10-31 FI FI3195/74A patent/FI59947C/en active
- 1974-11-26 GB GB5107274A patent/GB1455350A/en not_active Expired
- 1974-11-27 ES ES432348A patent/ES432348A1/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996013375A1 (en) * | 1994-10-26 | 1996-05-09 | Reime A/S | Device for adjusting counterpressure in a screw press |
Also Published As
Publication number | Publication date |
---|---|
JPS5442466B2 (en) | 1979-12-14 |
FI59947B (en) | 1981-07-31 |
SE7413109L (en) | 1975-05-28 |
DE2449483C2 (en) | 1985-05-30 |
CA1017999A (en) | 1977-09-27 |
ES432348A1 (en) | 1976-11-01 |
IT1022885B (en) | 1978-04-20 |
FR2252211B1 (en) | 1978-05-05 |
JPS5084972A (en) | 1975-07-09 |
SE421188B (en) | 1981-12-07 |
NO134516C (en) | 1976-10-27 |
GB1455350A (en) | 1976-11-10 |
US3911809A (en) | 1975-10-14 |
FI319574A (en) | 1975-05-28 |
FI59947C (en) | 1981-11-10 |
FR2252211A1 (en) | 1975-06-20 |
DE2449483A1 (en) | 1975-05-28 |
NO451873L (en) | 1975-06-23 |
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