EP0034780A3 - Rotating sorter - Google Patents

Rotating sorter Download PDF

Info

Publication number
EP0034780A3
EP0034780A3 EP81101042A EP81101042A EP0034780A3 EP 0034780 A3 EP0034780 A3 EP 0034780A3 EP 81101042 A EP81101042 A EP 81101042A EP 81101042 A EP81101042 A EP 81101042A EP 0034780 A3 EP0034780 A3 EP 0034780A3
Authority
EP
European Patent Office
Prior art keywords
slot
pulp suspension
vanes
suspension
vane
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.)
Granted
Application number
EP81101042A
Other languages
German (de)
Other versions
EP0034780A2 (en
EP0034780B1 (en
Inventor
Werner Schon
Albrecht Dr.-Ing. Meinecke
Reimund Rienecker
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.)
JM Voith GmbH
Original Assignee
JM Voith GmbH
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 JM Voith GmbH filed Critical JM Voith GmbH
Priority to AT81101042T priority Critical patent/ATE24218T1/en
Publication of EP0034780A2 publication Critical patent/EP0034780A2/en
Publication of EP0034780A3 publication Critical patent/EP0034780A3/en
Application granted granted Critical
Publication of EP0034780B1 publication Critical patent/EP0034780B1/en
Expired legal-status Critical Current

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
    • B07B1/18—Drum screens
    • B07B1/20—Stationary drums with moving interior agitators
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21D—TREATMENT OF THE MATERIALS BEFORE PASSING TO THE PAPER-MAKING MACHINE
    • D21D5/00—Purification of the pulp suspension by mechanical means; Apparatus therefor
    • D21D5/02—Straining or screening the pulp
    • D21D5/023—Stationary screen-drums
    • D21D5/026—Stationary screen-drums with rotating cleaning foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
  • Filtration Of Liquid (AREA)
  • Unwinding Webs (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Treatment Of Liquids With Adsorbents In General (AREA)

Abstract

The disclosure concerns a rotary screening machine for moving pulp suspension through a screening slot and for separating impurities from the pulp suspension. An annular rotatable drum is surrounded by an annular porous screen basket that is spaced away to define a screening slot. Pulp suspension is delivered to one axial end of the slot and is discharged from the other axial end of the slot. Generally wedged shaped vanes, widening in the axial direction between the leading and trailing ends of the vane, are provided around the drum. The wedge defining surfaces may also be inclined with respect to a respective plane perpendicular to the axis. The space between the wedge surfaces is an open volume. A wall in that space is oriented to help create appropriate vacuum and eddy conditions behind the vane. The drum may have different zones, with the lower zone being provided with vanes and the upper zone being generally smooth. Other types of vanes or projections may be provided in the intermediate zone. Water sprayed into the slot dilutes the suspension. The configuration of the vane causes conveyance of the pulp suspension generally toward the impurities outlet and conveys the impurities to that outlet. The configuration of the vanes also causes the suspension to pulsate across the screen basket which dislodges pulp suspension fibers that otherwise might become matted on the screen.
EP81101042A 1980-02-21 1981-02-14 Rotating sorter Expired EP0034780B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81101042T ATE24218T1 (en) 1980-02-21 1981-02-14 ROTARY SORTER.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3006482 1980-02-21
DE3006482A DE3006482C2 (en) 1980-02-21 1980-02-21 Rotary sorter

Publications (3)

Publication Number Publication Date
EP0034780A2 EP0034780A2 (en) 1981-09-02
EP0034780A3 true EP0034780A3 (en) 1984-05-02
EP0034780B1 EP0034780B1 (en) 1986-12-10

Family

ID=6095183

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81101042A Expired EP0034780B1 (en) 1980-02-21 1981-02-14 Rotating sorter

Country Status (8)

Country Link
US (1) US4356085A (en)
EP (1) EP0034780B1 (en)
JP (1) JPS56133009A (en)
AT (1) ATE24218T1 (en)
BR (1) BR6100221U (en)
CA (1) CA1174203A (en)
DE (2) DE3006482C2 (en)
ES (1) ES8206707A1 (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0205623B1 (en) * 1984-12-25 1989-09-13 Mitsubishi Jukogyo Kabushiki Kaisha Pressure slit screen
DE3503241A1 (en) * 1985-01-31 1986-08-07 J.M. Voith Gmbh, 7920 Heidenheim SORTER, ESPECIALLY VERTICAL Sifter
SE443007B (en) * 1985-03-04 1986-02-10 Kamyr Ab A screening device
DE3701400A1 (en) * 1986-02-18 1987-10-08 Voith Gmbh J M Sorting device for fibre suspensions
DE3701669A1 (en) * 1987-01-22 1988-08-04 Voith Gmbh J M SORTING WING
DE3703831A1 (en) * 1987-02-07 1988-09-08 Voith Gmbh J M PLASTIC SORTER
FI77279C (en) * 1987-04-30 1989-02-10 Ahlstroem Oy FOERFARANDE OCH ANORDNING FOER BEHANDLING AV FIBERSUSPENSION.
US5078878A (en) * 1988-03-07 1992-01-07 Bird Escher Wyss Pressure knotter screening apparatus
DE3831845A1 (en) * 1988-09-19 1990-04-12 Voith Gmbh J M SORTING DEVICE FOR FIBER SUSPENSIONS
US5172813A (en) * 1989-05-17 1992-12-22 A. Ahlstrom Corporation Method and an apparatus for treating fiber suspension
DE3935151C2 (en) * 1989-10-21 1998-09-17 Voith Gmbh J M Rotor for a sorter for the recovery of fibers from paper or cellulose
JPH0748715Y2 (en) * 1989-12-08 1995-11-08 株式会社サトミ製作所 Stock selection equipment
DE4000248A1 (en) * 1990-01-06 1991-07-11 Emil Holz ROTOR FOR PRESSURE SORTER FOR SORTING FIBER SUSPENSIONS
US5103842A (en) * 1990-08-14 1992-04-14 Philip Morris Incorporated Conditioning cylinder with flights, backmixing baffles, conditioning nozzles and air recirculation
FR2666598B1 (en) * 1990-09-10 1994-05-27 Escher Wyss Gmbh PROCESS FOR SEPARATING, ESPECIALLY SORTING OR SPLITTING A SUSPENSION OF PAPER PULP.
US5143220A (en) * 1990-11-08 1992-09-01 Ingersoll-Rand Company Apparatus for screening to remove knots from a fluid borne slurry of fibers and knots
FI88414C (en) * 1991-01-30 1993-05-10 Ahlstroem Oy Device for treating fiber suspension
DE4123112A1 (en) * 1991-07-12 1993-01-21 Voith Gmbh J M PRINT SORTER
US5190160A (en) * 1991-08-02 1993-03-02 Ingersoll-Rand Company Method and apparatus for enhancing transport of knots in a knot drainer
FI92227C (en) * 1992-04-23 1994-10-10 Ahlstroem Oy Apparatus for processing the fiber suspension
US5497886A (en) * 1992-07-13 1996-03-12 Ingersoll-Rand Company Screening apparatus for papermaking pulp
US5307939A (en) * 1992-07-13 1994-05-03 Ingersoll-Rand Company Screening apparatus for papermaking pulp
NL1009609C2 (en) * 1998-07-10 2000-01-11 Constructie En Systeembouw Ver Device for separating solid particles from a mainly liquid substance.
DE19911884A1 (en) * 1999-03-17 2000-09-21 Voith Sulzer Papiertech Patent Pressure sorter for screening a paper pulp suspension and screen clearer for one
US20050045529A1 (en) * 2003-09-02 2005-03-03 Gl&V Management Hungary Kft Vortex inducing rotor for screening apparatus for papermaking pulp
KR101300049B1 (en) * 2011-10-27 2013-09-10 심관흠 Apparatus for dehydrating
DE102013100209B3 (en) * 2013-01-10 2014-05-22 Günther Holding GmbH & Co. KG Sorting element for a sorting device
DE202014100802U1 (en) * 2014-02-21 2015-05-22 Stf Maschinen- Und Anlagenbau Gmbh Device for washing bulk material
GB2600430A (en) * 2018-08-01 2022-05-04 Salvtech Ltd Dry separation waste processing and apparatus for achieving such
US20230068151A1 (en) * 2020-02-14 2023-03-02 Taizen Co., Ltd. Wet pulp material processing machine
CN113245197A (en) * 2021-05-20 2021-08-13 福建师范大学 Biological reaction and biological separation device

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1722874A (en) * 1928-01-13 1929-07-30 Harold D Wells Pulp screen
DE495284C (en) * 1925-05-23 1930-04-04 Samuel Milne Method and device for sifting paper stock and like
DE579606C (en) * 1931-04-02 1933-06-29 Carl Nebrich Centrifugal separator for wood pulp, cellulose, paper pulp, etc. like
DE2712715A1 (en) * 1977-03-23 1978-09-28 Finckh Maschf SORTER FOR FIBER SUSPENSIONS
FR2410081A1 (en) * 1977-11-23 1979-06-22 Lamort Ingenieurs Construc E E APPARATUS FOR PULPING PAPER PULP
US4165841A (en) * 1975-10-30 1979-08-28 J. M. Voith Gmbh Apparatus for separating contaminants from fibrous suspensions
DE2850385B1 (en) * 1978-11-21 1980-05-08 Voith Gmbh J M Device for removing impurities from fiber suspensions
GB2051600A (en) * 1979-07-06 1981-01-21 Lamort E & M Paper pulp screen

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE130871C (en) *
US1533410A (en) * 1921-03-28 1925-04-14 Anton J Haug Pulp-screening machine
US1670473A (en) * 1925-05-23 1928-05-22 Milne Samuel Mechanical screen, strainer, and the like
GB336252A (en) * 1929-07-04 1930-10-06 Siliam Martin Bjerre Improvements in screens
US1921750A (en) * 1931-04-01 1933-08-08 Carl Nebrich Centrifugal separator for straining pulpy material, such as wood pulp, cellulose, paper pulp, and the like
US2337113A (en) * 1941-10-22 1943-12-21 Wilfred B Mathewson Pulp screen
US2738065A (en) * 1951-01-04 1956-03-13 Mahlkuch Eva Method of and apparatus for processing materials
US3149065A (en) * 1961-12-21 1964-09-15 Lummus Cotton Gin Co Apparatus for separting air and trash from seed cotton
US3235087A (en) * 1962-10-08 1966-02-15 Brown Citrus Machinery Corp Apparatus for separation of liquids from solids
US3247965A (en) * 1963-05-07 1966-04-26 Kimberly Clark Co Vertical centrifugal screen for pulp stock
US3363759A (en) * 1964-04-29 1968-01-16 Bird Machine Co Screening apparatus with rotary pulsing member
US3303759A (en) * 1964-05-11 1967-02-14 Peters Leo Converting machine for butter patty plate
US3458038A (en) * 1966-06-02 1969-07-29 Ingersoll Rand Canada Screening apparatus
SE316363B (en) * 1966-12-01 1969-10-20 Karlstad Mekaniska Ab
CA1009583A (en) * 1973-03-23 1977-05-03 Sydney W.H. Hooper Two stage pressure pulp screen device with stationary cylindrical screen
AT336392B (en) * 1974-03-20 1977-05-10 Finckh Metalltuch Maschf PRESSURE SECTION FOR FIBER SUSPENSIONS
DE2712749A1 (en) * 1977-03-23 1979-02-08 Finckh Maschf SORTER FOR SITING FIBER SUSPENSIONS

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE495284C (en) * 1925-05-23 1930-04-04 Samuel Milne Method and device for sifting paper stock and like
US1722874A (en) * 1928-01-13 1929-07-30 Harold D Wells Pulp screen
DE579606C (en) * 1931-04-02 1933-06-29 Carl Nebrich Centrifugal separator for wood pulp, cellulose, paper pulp, etc. like
US4165841A (en) * 1975-10-30 1979-08-28 J. M. Voith Gmbh Apparatus for separating contaminants from fibrous suspensions
DE2712715A1 (en) * 1977-03-23 1978-09-28 Finckh Maschf SORTER FOR FIBER SUSPENSIONS
FR2410081A1 (en) * 1977-11-23 1979-06-22 Lamort Ingenieurs Construc E E APPARATUS FOR PULPING PAPER PULP
DE2850385B1 (en) * 1978-11-21 1980-05-08 Voith Gmbh J M Device for removing impurities from fiber suspensions
GB2051600A (en) * 1979-07-06 1981-01-21 Lamort E & M Paper pulp screen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DAS PAPIER; Band 31, Nr. 7, 1977, Seiten 263-275 *

Also Published As

Publication number Publication date
DE3006482C2 (en) 1983-04-14
JPS56133009A (en) 1981-10-17
JPH0242951B2 (en) 1990-09-26
US4356085A (en) 1982-10-26
EP0034780A2 (en) 1981-09-02
CA1174203A (en) 1984-09-11
EP0034780B1 (en) 1986-12-10
DE3006482A1 (en) 1981-10-08
ES499618A0 (en) 1982-08-16
BR6100221U (en) 1983-05-17
ATE24218T1 (en) 1986-12-15
ES8206707A1 (en) 1982-08-16
DE3175705D1 (en) 1987-01-22

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