US3911809A - Counter pressure means for a screw press - Google Patents

Counter pressure means for a screw press Download PDF

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Publication number
US3911809A
US3911809A US513508A US51350874A US3911809A US 3911809 A US3911809 A US 3911809A US 513508 A US513508 A US 513508A US 51350874 A US51350874 A US 51350874A US 3911809 A US3911809 A US 3911809A
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US
United States
Prior art keywords
flaps
counter pressure
press
pressure means
screw
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.)
Expired - Lifetime
Application number
US513508A
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English (en)
Inventor
Erlend Eikenes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thune Eureka AS
Original Assignee
Thune Eureka AS
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 Thune Eureka AS filed Critical Thune Eureka AS
Application granted granted Critical
Publication of US3911809A publication Critical patent/US3911809A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • COUNTER PRESSURE MEANS FOR A SCREW PRESS Screw presses basically comprise a screw arranged in a pressure cage.
  • the material to be pressed is fed into one end of the screw press and out of the other end, the discharge end.
  • the desired pressure effect is achieved by an increased screw diameter in the feeding direction or by a constant screw diameter in cooperation with a decreasing diameter of the pressure cage.
  • a counter pressure means is usually arranged, i.e., a means ensuring increased pressure at the discharge end of said press. This is usually achieved by a reduction of the discharge area, whereby a local retention of the material and a correspondingly increased pressure is achieved at the discharge end of the press.
  • the object of the present invention is to provide a counter pressure means effective to reduce the material discharge area.
  • a number of flaps swingably arranged in radial planes along the circumference of the press discharge end are mounted on a common annular bellows means, which can be connected to a source of pressure.
  • a counter pressure means the desired reduction of the material discharge area can be achieved by adaption of the pressure in the bellows means to the working conditions.
  • the flaps are influenced by one and the same pressure means, and the single flaps can swing away as occasion demands as well, which is of importance, e.g., in the case of hard inclusions.
  • Flaps worn down can also be exchanged in a simple manner. If desired all flaps can be exchanged by flaps of a different size'or shape. In this manner the counter pressure means is more universally adjustable and utilizable.
  • a counter pressure means is, thus provided for a screw press, which counter pressure means is characterized by a number of flaps swingably arranged in radial planes along the circumference of the press discharge end, which flaps are mounted on a common annular bellows means that can be connected to a source of pressure.
  • FIG. 1 is a partly sectional side elevation of a screw press
  • FIG. 2 shows the counter pressure means, seen in the direction towards the screw press
  • FIG. 3 is a sectional view on an enlarged scale of the counter pressure means.
  • FIG. 1 a screw press is shown comprising a case 1 on a substructure 2.
  • the screw press further comprises an inlet 3 and a discharge end 4.
  • the screw is designated 5 and the pressure cage 6.
  • the screw 5 is extended through the discharge box 7 and is provided with a shaft journal 8' for connection with a driving means.
  • an annual bellows means 9 is provided around the press discharge end.
  • Said bellows means thus comprises a rigid ring 10 and an annular bellows 11 made of a suitable resilient material and secured on said ring.
  • a number of threaded bores 12 are arranged so as to correspond to bores 13 in the wallof said discharge box 7.
  • a conduit (not shown) leading to a source of pressure with suitable control means can be screwed into one of said threaded bores 12, so that the interior of said bellows means can be provided with a desired pressure.
  • the flaps 15 being L-shaped in section and comprising a central stiffening leg 16, are identically mounted. Here only the mounting of the flap shown in FIG. 3 is described.
  • the flap is mounted by the aid of four screws 17 which are inserted through a counterhold disk 18 inside the bellows 11 and through one leg of the flap 15. Said screws are provided with nuts as shown in FIG. 3.
  • the screw 5 is provided with a ring 20 forming an inclined face 21 towards said discharge end 4 and cooperating with said flaps for adjustment of the material discharge area.
  • Counter pressure means for a screw press characterized by a number of flaps swingably arranged in radial planes along the circumference of the press discharge end, which flaps are mounted on a common annular bellows means to be connected to a source of pressure.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Diaphragms And Bellows (AREA)
  • Press Drives And Press Lines (AREA)
  • Paper (AREA)
US513508A 1973-11-27 1974-10-09 Counter pressure means for a screw press Expired - Lifetime US3911809A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO4518/73A NO134516C (de) 1973-11-27 1973-11-27

Publications (1)

Publication Number Publication Date
US3911809A true US3911809A (en) 1975-10-14

Family

ID=19880380

Family Applications (1)

Application Number Title Priority Date Filing Date
US513508A Expired - Lifetime US3911809A (en) 1973-11-27 1974-10-09 Counter pressure means for a screw press

Country Status (11)

Country Link
US (1) US3911809A (de)
JP (1) JPS5442466B2 (de)
CA (1) CA1017999A (de)
DE (1) DE2449483C2 (de)
ES (1) ES432348A1 (de)
FI (1) FI59947C (de)
FR (1) FR2252211B1 (de)
GB (1) GB1455350A (de)
IT (1) IT1022885B (de)
NO (1) NO134516C (de)
SE (1) SE421188B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9610747B2 (en) 2012-05-25 2017-04-04 Conveyor Eng. & Mfg. Co. Adjustable compression screw press

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2806488A1 (de) * 1978-02-16 1979-08-23 Dambach Ind Anlagen Vorrichtung zum entwaessern und verdichten von rechengut, muell o.dgl.
NO300533B1 (no) * 1994-10-26 1997-06-16 Reime As Anordning for justering av mottrykk i en skrupresse
SE9500526D0 (sv) * 1995-02-14 1995-02-14 Tetra Laval Holdings & Finance Anordning för förtjockning av massa
GB2492790B (en) * 2011-07-12 2013-08-07 New Earth Advanced Thermal Technologies Ltd Feed compactor variable orifice outlet
DE102017207310A1 (de) * 2017-05-02 2018-11-08 Röhren- Und Pumpenwerk Bauer Ges.M.B.H. Vorrichtung und Verfahren zur Behandlung von Trübe, insbesondere Gülle

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3064557A (en) * 1959-07-15 1962-11-20 Bauer Bros Co Flow restrainer
US3065689A (en) * 1959-11-16 1962-11-27 Speakman Co Continuous screw press progressively adjustable during operation
US3333679A (en) * 1964-07-08 1967-08-01 Adolf Zimmermann Maschinenfaba Device for closing the outlet end of a worm conveyer

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3064557A (en) * 1959-07-15 1962-11-20 Bauer Bros Co Flow restrainer
US3065689A (en) * 1959-11-16 1962-11-27 Speakman Co Continuous screw press progressively adjustable during operation
US3333679A (en) * 1964-07-08 1967-08-01 Adolf Zimmermann Maschinenfaba Device for closing the outlet end of a worm conveyer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9610747B2 (en) 2012-05-25 2017-04-04 Conveyor Eng. & Mfg. Co. Adjustable compression screw press

Also Published As

Publication number Publication date
SE7413109L (de) 1975-05-28
DE2449483C2 (de) 1985-05-30
JPS5084972A (de) 1975-07-09
IT1022885B (it) 1978-04-20
GB1455350A (en) 1976-11-10
JPS5442466B2 (de) 1979-12-14
FI59947C (fi) 1981-11-10
SE421188B (sv) 1981-12-07
FI319574A (de) 1975-05-28
FI59947B (fi) 1981-07-31
FR2252211A1 (de) 1975-06-20
CA1017999A (en) 1977-09-27
NO134516C (de) 1976-10-27
ES432348A1 (es) 1976-11-01
DE2449483A1 (de) 1975-05-28
FR2252211B1 (de) 1978-05-05
NO134516B (de) 1976-07-19
NO451873L (de) 1975-06-23

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