EP2732094A1 - Drucksortierer - Google Patents
DrucksortiererInfo
- Publication number
- EP2732094A1 EP2732094A1 EP12729158.1A EP12729158A EP2732094A1 EP 2732094 A1 EP2732094 A1 EP 2732094A1 EP 12729158 A EP12729158 A EP 12729158A EP 2732094 A1 EP2732094 A1 EP 2732094A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- suspension
- flow direction
- pressure sorter
- axis
- sorter according
- 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
Links
Classifications
-
- 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
Definitions
- the invention relates to a pressure sorter for cleaning a pulp suspension with a Siebense rotationally symmetrical trained sieve element, which divides the pressure sorter in a Zulaufraum and a Acceptance space, the Zulaufraum with a suspension inlet and a Rejektauslauf and the Gutstoffraum with a Gutstoffablauf in connection and is in
- Pressure sorters are used in the reprocessing of paper pulp suspensions, namely around the pulp suspension in a wet sieving
- such a pressure sorter includes a sieve element which is provided with a plurality of openings.
- the fibers contained in the suspension should pass through the openings as accept, while not
- the wing element at the front gives pressure and, behind it, a suction pulse clearing sieve. Thereby, a part of the suspension, which was rejected on the screen or has already passed through the screen as accepts, sucked back, whereby the screen openings are kept free or cleared.
- the rotor blades are formed for example in DE-OS 3701669 of surveys.
- Pulsations essentially start from the rotor.
- the object of the invention is therefore to reduce energy consumption and pulsations.
- the object has been achieved in that the distance between the axis of rotation and the cross-sectional area of the plane of travel extending through the centroid of the plane perpendicular to the flow direction
- the suspension is not injected tangentially, it also has no or at least a reduced rotational flow when entering the inlet space. Consequently, exclusively or predominantly the rotor is responsible for generating the rotational flow in the inlet space.
- the flow direction forms an angle of at least 10 °, preferably at least 20 ° and in particular at least 35 ° with all tangents on the screen element in the region of the suspension feed.
- the suspension inlet should have a flow cross section influencing, preferably adjustable aperture. For optimal mixing of the suspension, it is advantageous if the
- the axis of rotation should stand vertically.
- other orientations, for example, lying arrangements are possible.
- FIG. 1 shows a schematic longitudinal section through a pressure sorter
- Figure 2 a partial longitudinal section with inclined suspension inlet 1 1;
- FIG. 3 a cross section with added suspension feed 1 1 and
- FIG. 1 shows a pressure sorter according to the invention with a
- Sieve element 2 here in the form of a cylindrical screen basket with vertical
- Siebachse 10 which divides the interior of the pressure sorter into an inlet space 3 and an accepts space 4.
- the pulp suspension 1 is fed via a suspension feed.
- this sieve scraper is formed by a rotor 5 rotating in the screen element 2 with rotor blades attached thereto.
- the rotor 5 here has the form of a cylindrical drum, the axis of rotation 7 coincides with the Siebachse 10.
- All rotor blades here have the same shape, which leads to a uniform effect on the pulp suspension 1 and the filter element 2.
- the rotor blades are arranged distributed over a plurality of perpendicular to the rotation axis 7 extending circumferential planes of the rotor 5.
- the rotor blades are formed as elevations on the rotor 5, which accordingly have no radial distance from the rotor 5.
- the running in the direction of rotation 16 of the rotor 5 cross-sectional area of the rotor blades is formed as a rectangle.
- the rotor blades can also be designed differently, for example with a wing profile.
- the pulp suspension 1 receives no or only a reduced angular momentum. This makes it possible to operate the rotor 5 at a lower speed, so that on the one hand less energy is required and on the other hand, lower pulsations emanate from the rotor 5.
- the distance 15 between the Rotation axis 10 and in the flow direction 14 through the centroid 6 of the perpendicular to the flow direction 14 extending cross-sectional area of the suspension inlet 1 1 going straight zero or as here greater than zero and less than the 1, 0fache preferably less than 0.7 times the radius of the screen element. 2 is.
- the flow direction 14 forms an angle 19 of at least 10 °, preferably at least 20 ° and in particular at least 35 ° at the suspension inlet 1 1 with each tangent on the screen element 2.
- Flow cross section changing, preferably adjustable aperture 8 have.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Paper (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102011079230A DE102011079230A1 (de) | 2011-07-15 | 2011-07-15 | Drucksortierer |
PCT/EP2012/062287 WO2013010755A1 (de) | 2011-07-15 | 2012-06-26 | Drucksortierer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2732094A1 true EP2732094A1 (de) | 2014-05-21 |
EP2732094B1 EP2732094B1 (de) | 2018-02-28 |
Family
ID=46331350
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP12729158.1A Active EP2732094B1 (de) | 2011-07-15 | 2012-06-26 | Drucksortierer |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP2732094B1 (de) |
CN (1) | CN103687991B (de) |
DE (1) | DE102011079230A1 (de) |
WO (1) | WO2013010755A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108203890A (zh) * | 2017-12-21 | 2018-06-26 | 黄蒋元 | 筛浆机 |
CN110158345A (zh) * | 2018-09-28 | 2019-08-23 | 江门欧佩德晶华轻工机械有限公司 | 智能压力筛 |
DE102018127914A1 (de) * | 2018-11-08 | 2020-05-14 | Voith Patent Gmbh | Rotor für ein Heizaggregat |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3581893A (en) * | 1968-01-02 | 1971-06-01 | Improved Machinery Inc | Screening apparatus |
SE358429B (de) * | 1969-06-10 | 1973-07-30 | Sunds Ab | |
DE2526657C3 (de) * | 1975-06-14 | 1978-10-26 | Hermann Finckh, Maschinenfabrik, 7417 Pfullingen | Drucksichter für Fasersuspensionen |
AT368560B (de) * | 1981-02-18 | 1982-10-25 | Andritz Ag Maschf | Sortierer |
DE3663700D1 (en) * | 1986-07-15 | 1989-07-06 | Finckh Maschf | Pressure separator |
DE3701669A1 (de) | 1987-01-22 | 1988-08-04 | Voith Gmbh J M | Sortierfluegel |
FI83892C (fi) * | 1989-06-05 | 1991-09-10 | Tampella Oy Ab | Trycksil. |
FI102980B1 (fi) | 1997-05-21 | 1999-03-31 | Valmet Corp | Siipisovitelma kuitumassan lajittelulaitetta varten |
SE9901148L (sv) * | 1999-03-29 | 2000-06-12 | Valmet Fibertech Ab | Silanordning med ett roterbart och ett stationärt silorgan |
AT408772B (de) * | 2000-02-03 | 2002-03-25 | Andritz Ag Maschf | Sortierer zur reinigung einer faserstoffsuspension |
-
2011
- 2011-07-15 DE DE102011079230A patent/DE102011079230A1/de not_active Withdrawn
-
2012
- 2012-06-26 CN CN201280035074.8A patent/CN103687991B/zh active Active
- 2012-06-26 WO PCT/EP2012/062287 patent/WO2013010755A1/de active Application Filing
- 2012-06-26 EP EP12729158.1A patent/EP2732094B1/de active Active
Non-Patent Citations (1)
Title |
---|
See references of WO2013010755A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN103687991A (zh) | 2014-03-26 |
CN103687991B (zh) | 2016-08-17 |
WO2013010755A1 (de) | 2013-01-24 |
DE102011079230A1 (de) | 2013-01-17 |
EP2732094B1 (de) | 2018-02-28 |
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