US3009412A - Method and means for pressing liquid out of vegetable substances - Google Patents

Method and means for pressing liquid out of vegetable substances Download PDF

Info

Publication number
US3009412A
US3009412A US622935A US62293556A US3009412A US 3009412 A US3009412 A US 3009412A US 622935 A US622935 A US 622935A US 62293556 A US62293556 A US 62293556A US 3009412 A US3009412 A US 3009412A
Authority
US
United States
Prior art keywords
press
chambers
spindle
chamber
flights
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
US622935A
Other languages
English (en)
Inventor
Jung Erland Viktor
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.)
Landsverk AB
Original Assignee
Landsverk AB
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 Landsverk AB filed Critical Landsverk AB
Application granted granted Critical
Publication of US3009412A publication Critical patent/US3009412A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C13—SUGAR INDUSTRY
    • C13B—PRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B10/00—Production of sugar juices
    • C13B10/08—Extraction of sugar from sugar beet with water
    • C13B10/10—Continuous processes
    • C13B10/102—Continuous processes having rotatable means for agitation or transportation
    • 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
    • B30B9/121—Screw constructions
    • 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
    • B30B9/127—Feed means
    • 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
    • B30B9/128—Vertical or inclined screw presses
    • 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
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/66—Pulp catching, de-watering, or recovering; Re-use of pulp-water

Definitions

  • the invention refers to extraction of liquid by pressing vegetable substances, such as beet pulp, cellulose pulp, and fruits.
  • An object of the invention is to attain an increased liquid extraction in such spindle presses, and the invention is based on the conception made by experiments that essentially higher dry substance contents can be attained in spindle presses, if the compression steps during the passage of the beet pulp through the press chambers are chosen in a certain proportion to one another, and if the pressure in the last press chamber and in dependence thereof also in the other press chambers is regulated in a certain way.
  • FIGURE 1 is a vertical sectional view of a press according to one form of the invention
  • FIGURE 2 is a partial sectional view of the valve device
  • FIGURE 3 is a partial top view of the valve disk on an enlarged scale
  • FIGURE 4 is a side elevation of the spindle shown in FIGURE 1, and
  • FIGURE 5 a corresponding diagram
  • FIGURES 6 and 7 and FIGURES 8 and 9 show in a similar way as FIGURES 4 and 5 two modified spindles for obtaining a greater dry substance content.
  • FIGURES 1-5 A vertical and downwardly widening, rotatably mounted body or spindle 1 is according to FIGURES 1-5 provided with four pairs of screw blades or flights S S S and S, which are closely surrounded by a stationary, cylindrical screen jacket 3 within an outer cylindrical casing 4.
  • the space between the cylinders is by intermediate partitions 2 divided into three compartments, from which the juice extracted from the beet pulp and pressed through the screen area is drained off through outlets 5, 6, and 7.
  • resistors in the form of short guide plates 8 are provided and removably fastened to the outer casing so that the chamber within the screen cylinder 3 is divided into four press chambers P P P and P with the volumes V V V and V; respectively.
  • the spindle is mounted in an upper bearing 9 and has an upper extension 10 carrying stirring members 11.
  • This stirring device penetrates the beet pulp contained in a 3,009,412 Patented Nov. 21, 1961 hopper 12 which has a cylindrical wall 13 of the same diameter as the screen cylinder 3.
  • the hopper is tapered at 14 and continues upwards to form a feed channel 15 with a feed worm 16.
  • the lower end of the spindle is mounted in a bearing 17 in the upper wall of a housing 18 serving as a base plate for the press and containing a gear transmission 19, 20 connecting the spindle with a motor 21.
  • the two cylinders 3, 4 are connected at their lower ends to an end ring 22 resting on a supporting disk 23, and between them a rotatable valve disk 24 is mounted for varying the discharge opening 25 for the beet pulp and in dependence thereof also the pressure in the diflerent press chambers.
  • the valve disk has substantially rectangular openings 26 and the supporting disk corresponding openings 27.
  • the valve disk 24 can be rotated so that the discharge opening 25 between the spindle 1 and the screen cylinder 3 can be varied from fully open and down to zero, as the total area of the openings 26 corresponds to the ring-shaped opening between the spindle 1 and the screen cylinder 3.
  • Below the valve device a ring-shaped bottom 29 is connected to a stationary cylindrical wall 30 and extends to the spindle so as to form above the bottom a bottom room for collecting the beet pulp.
  • the press described above operates in the following manner. Beet pulp is introduced by the feed worm 16 into the hopper 12, where it is distributed by the stirring members 11 for further feeding into the screen cylinder.
  • the hopper should have such a large volume that it cannot be entirely emptied if the feed of beet pulp through the worm 16 is uneven. Thus it has proven to be suflicient in normal plants that the hopper has such a volume that the beet pulp remains in the hopper at least 7 minutes when the press operates with its maximum capacity.
  • the hopper can in such a case not be emptied at occasional irregularity in the supply of beet pulp to the press.
  • the beet pulp From the hopper 12 the beet pulp enters into the press chamber P where it is caught by the two flights S and pressed downwards and against the screen cylinder 3. The liquid passing the screen flows through the pipe 5.
  • the resistors 8 are provided immediately below the flights and the resistors thereby break the'rotating motion and guide the pulp to follow a slightly helical path downwards.
  • the pulp From the press chamber P; the pulp proceeds under continuous liquid extraction through the remaining press chambers P P and P between which the pulp is guided by four resistors.
  • the pulp From the press chamber R, the pulp passes through the valve device 22, 23, to the collecting room 31, from which it is removed by means not shown, such as a rake. I
  • FIGURE 4 shows diagrammatically a form of the press spindle 1 with screen cylinder 3 and four press chambers P P P P each one with two screw blades or flights S S S S and a volume V V V and V, respectively.
  • These volumes would be the same as the volumes of the beet pulp passing through the press chambers for each revolution of the spindle, if the displacement of the beet pulp were exactly axial and if in example all have the same screen area, it is obvious that the quotients for the different press chambers stand to one another as the volumes V.
  • the quotient of V :V should in this example according to the invention be at least 4, and the quotient of V :V shall be more than V :V and it appears from the drawing that the spindle corresponds to this requirement.
  • the volume V, the screen area A and the number of flights i may vary, and the general construction rule will then be that the quotient Q of the volume V of the substance in the first press chamber P multiplied by the number i of flights in this chamber divided by the screen area A of the chamber should be at least four times as great as the corresponding quotient Q for the last press chamber P and that the ratio of the quotients Q :Q for the two first press chambers P and P should be greater than the corresponding ratio of the quotients Q,, :Q for the two last press chambers P and P
  • the quotient Q is preferably at least twice as great as Q and at least three times as great as Q
  • the number of press chambers may first be determined.
  • a suitable screen casing, such as a cylinder, is then designed, and the variable diameter of the screw spindle is then determined in such a way that the desired volumes of the press chambers are obtained.
  • the quantity of extracted liquid is dependent on the pressure in the last press chamber, and the best result has been obtained, if this pressure amounts to at least 2.5 atmospheric overpressure. It is further of advantage that the pressure, in case all press chambers have the same number of flights, increases from chamber to chamber at first substantially linearly and towards the end more rapidly than linearly, which result can be attained in a press according to the invention by control of the discharge by means of the valve.
  • FIGURE 6 illustrates a similar press spindle for six press chambers P P P P P and P with a constant number of flights S S S S S and S but contrary to FIGURE 4 the height of the press chambers is not constant but decreases as well as the screen areas A A A A and A towards the discharge end.
  • the requirements as to the relation between the volumes as stated in connection with the example shown in FIGURE 4 are here applicable to the quotients:
  • FIGURE 7 shows hatched rectangles, the areas whereof correspond to the volumes V V V V V and V respectively. These rectangles have been extended to vertical dashed lines, the distances of which from the vertical axis of the diagram correspond to the quotients of 1i 2; 71; 4 A; At which can be read on the horizontal axis of the diagram.
  • the following ratios between the quotients of Q or 4 can also be obtained from the diagram:
  • the volumes of the press chambers correspond to the areas of the rectangles V V and these rectangles have been extended to vertical dashed lines, the distances of which from the vertical axis represent V.i.
  • l I n may be of advantage, such as 12 to 18.
  • the body of the spindle 1 may be perforated for the same purpose and in such a case the efficiency or capacity of the press will be still more improved.
  • a press for pressing liquid out of vegetable substances comprising a vertical rotary spindle, a surrounding perforated jacket forming a drainage screen and having the upper end open for receiving vertically fed vegetable substances, a plurality of resistors extending inwardly from said jacket and dividing the space between the spindle and the jacket into successive press chambers, a plurality of flights on the spindle in each chamber extending into the space between two axially spaced resistors and each flight having an axial length corresponding to that of the one of said chambers in which it is located, respectively, and a peripheral extent of 360 divided by the number of flights in the chambers, the volumes of the chambers varying so that the quotient between the volume of the first press chamber multiplied by the number of flights in said first chamber, divided by the screen area of the said first chamber is at least four times as great as the corresponding quotient for the last press chamber, and that the ratio of the corresponding quotients for the first two press chambers is greater than the corresponding ratio of the corresponding
  • valve comprises a fixed ring-shaped disk with a series of valve openings, a ring-shaped valve disk mounted rotatably on said fixed disk and provided with a series of corresponding valve openings, and a gear mechanism for rotating said valve disk.
  • a press as claimed in claim 2 wherein a hopper is located axially above the first press chamber and a stirrer is mounted on an upper extension of the spindle within said hopper and extends substantially to the side wall thereof.
  • a press for pressing liquid out of vegetable substances comprising a rotary spindle, a surrounding perforated jacket forming a drainage screen, a plurality of resistors extending inwardly from said jacket and dividing the space between the spindle and the jacket into successive press chambers, a plurality of flights on the spindle in each chamber extending into the space between two axially spaced resistors and each flight having an axial length corresponding to that of the one of said chambers in which it is located, respectively, and a peripheral extent of 360 divided by the number of flights in the chambers, the volumes of the chambers varying so that the quotient between the volume of the first press chamber multiplied by the number of flights in said first chamber, divided by the screen area of the said first chamber is at least four times as great as the corresponding quotient for the last press chamber, that the quotient for the first press chamber is at least twice as great as the quotient for the second press chamber and at least three times as great as the quotient for the third press chamber, and that
  • a press for pressing liquid out of vegetable substances comprising a rotary spindle, a surrounding perforated jacket forming a drainage screen, a plurality of resistors extending inwardly from said jacket and 'divid ing the space between the spindle and the jacket into successive press chambers, a plurality of flights on the spindle in each chamber extending into the space between two axially spaced resistors and each flight having an axial length corresponding to that of the one of said chambers in which it is located, respectively, and a peripheral extent of 360 divided by the number of flights in the chambers, the volumes of the chambers varying so that the quotient between the volume of the first press chamber multiplied by the number of flights in said first chamber, divided by the screen area of the said first chamber is at least four times as great as the corresponding quotient for the last press chamber, that the ratio of the quotients for any two successive chambers is greater than the ratio of the quotients for any two subsequent and successive chambers, and that the ratio of the

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Organic Chemistry (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
US622935A 1955-11-23 1956-11-19 Method and means for pressing liquid out of vegetable substances Expired - Lifetime US3009412A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE803215X 1955-11-23

Publications (1)

Publication Number Publication Date
US3009412A true US3009412A (en) 1961-11-21

Family

ID=20342647

Family Applications (1)

Application Number Title Priority Date Filing Date
US622935A Expired - Lifetime US3009412A (en) 1955-11-23 1956-11-19 Method and means for pressing liquid out of vegetable substances

Country Status (4)

Country Link
US (1) US3009412A (enrdf_load_stackoverflow)
BE (1) BE552363A (enrdf_load_stackoverflow)
FR (1) FR1200110A (enrdf_load_stackoverflow)
GB (1) GB803215A (enrdf_load_stackoverflow)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256807A (en) * 1964-06-01 1966-06-21 Arthur J Hunt Apparatus for extracting liquid from citrus fruit
US3470815A (en) * 1966-05-05 1969-10-07 Landsverk Ab Pulp press
US3998148A (en) * 1973-12-22 1976-12-21 Salzgitter Maschinen Aktiengesellschaft Press for sugar beet and similar chips
DE3044726A1 (de) * 1979-12-01 1981-08-27 Simon-Rosedowns Ltd., Hull, Humberside Geraet fuer die expansion von oelsamen
US4373434A (en) * 1980-11-24 1983-02-15 Simon-Rosedowns Limited Apparatus for the expansion of oil bearing seeds
EP1961474B1 (en) * 2006-12-22 2016-10-05 Bilfinger Johnson Water Technologies S.R.L. Separator device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2524383B1 (fr) * 1982-03-31 1987-10-30 Lejeune Gwenole Procede et dispositif pour la separation de phases pour des materiaux rigides multiphases
CN110255732B (zh) * 2019-06-17 2021-09-17 南京理工大学 一种节能的固液分离净化装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1213171A (en) * 1915-10-16 1917-01-23 Ottomar Oskar Erfurth Screw conveyer.
US1245950A (en) * 1914-03-04 1917-11-06 Bromberger Maschb Anstalt Ges Mit Beschraenkter Haftung Press for beet-root cuttings, bagasse, and the like.
US1628998A (en) * 1925-05-23 1927-05-17 Michael A Rollman Meat chopper
US1876064A (en) * 1926-05-08 1932-09-06 American Voith Contact Co Inc Apparatus for dewatering and washing pulp
US1989231A (en) * 1930-10-17 1935-01-29 Vincennes Packing Corp Apparatus for producing tomato products
US2104197A (en) * 1932-09-12 1938-01-04 Johansen Michal Arnt Screw press
US2325426A (en) * 1940-07-16 1943-07-27 Carl A Rietz Disintegrating apparatus
US2664814A (en) * 1948-02-21 1954-01-05 Jackson & Church Company Pulp press
US2709957A (en) * 1953-01-16 1955-06-07 Jackson & Church Company Screen and frame structure with frame functioning as a torque tube

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1245950A (en) * 1914-03-04 1917-11-06 Bromberger Maschb Anstalt Ges Mit Beschraenkter Haftung Press for beet-root cuttings, bagasse, and the like.
US1213171A (en) * 1915-10-16 1917-01-23 Ottomar Oskar Erfurth Screw conveyer.
US1628998A (en) * 1925-05-23 1927-05-17 Michael A Rollman Meat chopper
US1876064A (en) * 1926-05-08 1932-09-06 American Voith Contact Co Inc Apparatus for dewatering and washing pulp
US1989231A (en) * 1930-10-17 1935-01-29 Vincennes Packing Corp Apparatus for producing tomato products
US2104197A (en) * 1932-09-12 1938-01-04 Johansen Michal Arnt Screw press
US2325426A (en) * 1940-07-16 1943-07-27 Carl A Rietz Disintegrating apparatus
US2664814A (en) * 1948-02-21 1954-01-05 Jackson & Church Company Pulp press
US2709957A (en) * 1953-01-16 1955-06-07 Jackson & Church Company Screen and frame structure with frame functioning as a torque tube

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3256807A (en) * 1964-06-01 1966-06-21 Arthur J Hunt Apparatus for extracting liquid from citrus fruit
US3470815A (en) * 1966-05-05 1969-10-07 Landsverk Ab Pulp press
US3998148A (en) * 1973-12-22 1976-12-21 Salzgitter Maschinen Aktiengesellschaft Press for sugar beet and similar chips
DE3044726A1 (de) * 1979-12-01 1981-08-27 Simon-Rosedowns Ltd., Hull, Humberside Geraet fuer die expansion von oelsamen
US4373434A (en) * 1980-11-24 1983-02-15 Simon-Rosedowns Limited Apparatus for the expansion of oil bearing seeds
EP1961474B1 (en) * 2006-12-22 2016-10-05 Bilfinger Johnson Water Technologies S.R.L. Separator device

Also Published As

Publication number Publication date
GB803215A (en) 1958-10-22
BE552363A (enrdf_load_stackoverflow)
FR1200110A (fr) 1959-12-18

Similar Documents

Publication Publication Date Title
US3009412A (en) Method and means for pressing liquid out of vegetable substances
US3111082A (en) Apparatus for dewatering suspensions and dry-pressing of the dry substance contained therein
DE3638839C2 (enrdf_load_stackoverflow)
US3943033A (en) Screw thickener
US3394649A (en) Liquid extracting device
US5743178A (en) Screw press for dehydrating fibrous materials
US3003412A (en) Fluid extracting apparatus
DE2128818A1 (de) Schneckenförderer fur einen konti nuierhch arbeitenden Cellulosekocher
US2084229A (en) Process for extracting juice from cut sugar beets and other gas containing substances
RU2351475C2 (ru) Винтовой пресс для прессования волокнистого материала, в частности волокнистой массы сахарной свеклы
US2105782A (en) Apparatus for dehydrating oil-containing material having a high water content, particularly whale flesh
US2912923A (en) Screw presses
US2573585A (en) Continuous extractor
US1382056A (en) Apparatus for the continuous separation of solids from liquids
US1835789A (en) Screw press
GB1042381A (en) Apparatus for use in the production of pulp from lignocellulose-containing material
EP0615957A1 (en) Device for dehydrating sludge waste
US3470815A (en) Pulp press
US3004876A (en) Method for washing fibrous material
US1769658A (en) Press for the treatment of moist materials
US2187890A (en) Continuous solvent extraction apparatus
DE2135217A1 (de) Verfahren und Vorrichtung zum Bleichen von Fasermatenal, insbesondere von Zeil Stoffpulpe
US3002446A (en) Screw press
US2549997A (en) Plug seal for solvent extraction columns
US5503743A (en) Device for dehydrating sludge waste