EP0598187B1 - Pulpeur en particulier pour le traitement de déchets ménagers - Google Patents

Pulpeur en particulier pour le traitement de déchets ménagers Download PDF

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Publication number
EP0598187B1
EP0598187B1 EP93112454A EP93112454A EP0598187B1 EP 0598187 B1 EP0598187 B1 EP 0598187B1 EP 93112454 A EP93112454 A EP 93112454A EP 93112454 A EP93112454 A EP 93112454A EP 0598187 B1 EP0598187 B1 EP 0598187B1
Authority
EP
European Patent Office
Prior art keywords
container
coarse dirt
trough
fibre
rotor
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
EP93112454A
Other languages
German (de)
English (en)
Other versions
EP0598187A1 (fr
Inventor
Klaus Warnke
Werner Kraft
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.)
Verwaltungs Lohse & Co KG GmbH
Original Assignee
Verwaltungs Lohse & Co KG 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 Verwaltungs Lohse & Co KG GmbH filed Critical Verwaltungs Lohse & Co KG GmbH
Publication of EP0598187A1 publication Critical patent/EP0598187A1/fr
Application granted granted Critical
Publication of EP0598187B1 publication Critical patent/EP0598187B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21B—FIBROUS RAW MATERIALS OR THEIR MECHANICAL TREATMENT
    • D21B1/00—Fibrous raw materials or their mechanical treatment
    • D21B1/04—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres
    • D21B1/12—Fibrous raw materials or their mechanical treatment by dividing raw materials into small particles, e.g. fibres by wet methods, by the use of steam
    • D21B1/30—Defibrating by other means
    • D21B1/34—Kneading or mixing; Pulpers
    • D21B1/345—Pulpers

Definitions

  • the invention relates to a pulp pulper according to the preamble of claim 1.
  • pulp pulpers are e.g. became known from DE 32 25 026 C2.
  • the container of such a pulping device generally has the shape of a cylinder, the axis of which is vertical, which has a bottom at the bottom and which is open at the top.
  • the rotor is generally in the bottom area. Its axis of rotation usually coincides with the longitudinal axis of the container, but an eccentric arrangement is also possible.
  • the rotor consists of a flat disc.
  • the shredding blades are arranged in the manner of rotor blades of a centrifugal pump.
  • the fibers to be treated ie to be dissolved
  • the container for example organic waste, and also a liquid, generally water.
  • the fibrous materials are torn apart and crushed and mixed with the liquid, so that a suspension is formed.
  • the rotor sets the suspension in a strong flow. This has - seen in an axial section through the pulp dissolver - a toroidal shape, with a radial flow initially forming in the rotor area towards the container wall, which then rises to flow radially inward again in the area of the surface, and from there down to the center of the rotor. This flow pattern is desirable; Because of the downward flow, the solids in suspension repeatedly reach the rotor area, where they are processed.
  • a device for removing the coarse and heavy waste in paper preparation which has a flat sieve screen extending over the entire width of a container for collecting the coarse and heavy waste, which on a rope of a trolley is arranged.
  • the sieve rake has tines which are arranged in straight sieve bars, the sieve bars running at least approximately parallel at a distance from one another.
  • the sieve is at least partially acted upon by the paper pulp from both sides of the rake, so that the sieving effect of the foreign bodies is extremely time-consuming, since the foreign bodies can only be caught on the tine side of the sieve rack for lifting out, because the foreign bodies must at least temporarily remove the sieve flow through, which delays the flow rate and thus the sieving process due to the resulting resistance.
  • foreign bodies can flow through the sieve nicks between the relatively far apart hook-shaped tines, and on the other hand the foreign bodies lay around the sieve bars and hook on the curved tines so that a Unloading the foreign body is difficult and in particular cannot be done without laborious manual work.
  • the known coarse dirt traps are structurally very complex at first.
  • the coarse dirt trap according to DE 32 25 026 C2 has a rake.
  • the tines of this rake point downwards in a first phase; the coarse material loops around the tines.
  • the rake is pivoted about a vertical axis so that the tines point upwards; now the rake with the coarse dirt attached to it can be moved out.
  • a telescopic device is used to drive out.
  • the rake In a third phase, the rake must be swung out of the area of the container. In addition, the rake must be turned again about the horizontal axis mentioned so that the dirt slides off the tines.
  • the invention has for its object to design a pulp pulverizer according to the preamble of claim 1 that it is overall simpler and therefore cheaper. This applies particularly to the coarse dirt trap. Above all, this should be designed in such a way that the cleaning intervals become shorter, and that radial positioning is carried out, depending on the needs of practice, without additional design effort can be.
  • a trough for receiving the coarse dirt trap is connected to the interior of the container; furthermore, the coarse dirt trap can be moved into the interior of the container from the trough by pivoting about a horizontal axis.
  • Such a pulp dissolver works as follows: First, the material to be dissolved is introduced into the interior of the container and diluted with water. The rotor starts to run. The coarse dirt trap is in the waiting position outside the interior, namely in the trough.
  • the suspension formed in the interior is drawn off through a sieve. Then the slide between the container and the trough opens. The remaining mass is filled up with dilution water to the immersion depth of the coarse dirt trap. The coarse dirt trap is then swiveled out of the trough into the interior of the container. The rotor continues to run. The coarse dirt loops around the catch elements of the coarse dirt catcher. These catch elements are generally rods or tines. In a further phase, the coarse dirt trap is pivoted in the opposite direction, whereby it emerges from the diluted suspension. The swivel angle is dimensioned such that the coarse dirt trap with the coarse dirt adhering to it is located above the upper edge of the trough.
  • the coarse dirt is wiped off the coarse dirt catcher, generally by a special wiping device.
  • the advantages of the embodiment according to the invention are that the coarse dirt trap is constructed much more simply than in the prior art.
  • the pivoting movement can be realized much more easily than the previously described movements of the previously known coarse dirt trap. There is no need to turn the catch elements. This makes the construction cheaper.
  • catch elements of the coarse dirt trap can be brought into any position in the radial direction, e.g. right up to the rotor, where the catch effect is optimal.
  • the coarse dirt trap only covers a short distance. This shortens the cleaning interval considerably.
  • the container - except for the open opening when entering - is completely closed and therefore odor-proof. Odor-tightness is also guaranteed between the container and the trough during the discharge of the coarse dirt, since the flushing water level is above the swivel opening of the coarse dirt collector. With the previously known rake, such a sealing could only be achieved with great technical effort due to the sequence of movements.
  • Another advantage is that with a corresponding design of the coarse dirt trap and with a corresponding arrangement of the horizontal pivot axis, the removal of the coarse dirt from the catch elements and thus its unloading can take place on two diametrically opposite sides of the pulp dissolver.
  • This can be advantageous if you are on this side of the pulp breaker there is a ramp that can be used both for driving up fresh waste and for moving away coarse dirt. This is not a problem with the intermittent mode of operation of the pulp dissolver.
  • FIG. 1 shows a side view and a schematic representation of an overall system for dissolving household waste.
  • FIGS. 2-5 show 4 different working phases of a fiber pulper according to the invention.
  • Figure 6 shows a top view of the container and trough. It can be seen from FIG. 6, inter alia, that the trough 10 has a rectangular shape when viewed from above.
  • the container 2 is octagonal. This has the following reason: If the entry is household waste, the use of stainless steel is excluded. However, the wetted surfaces must be lined with a material that is resistant to corrosion and wear. Flat surfaces are easier to line than round ones.
  • the system according to FIG. 1 comprises a pulp dissolver 1 with a container 2, which rests on four columns 3.
  • a rotor 4 in the form of a helix is located in the interior of the container.
  • In the lower part of the container there is a cylindrical screen plate.
  • a trough 10 is assigned to the pulp dissolver 1. As can be seen, the outer wall of the trough 10 is designed as a quarter circle. Seen from above, the trough forms a rectangle - see FIG. 5. The trough 10 is conductively connected to the interior of the container 2.
  • a coarse dirt trap 20 is pivotally mounted in the upper part of the pulp dissolver 1. Accordingly, it can perform a circular arc movement according to arrow 21.
  • the coarse dirt trap 20 includes i.a. a catcher 22 with prongs 23.
  • the system also has a ramp 30. This is used to drive up fresh household waste. However, it can also be used to remove coarse dirt.
  • the coarse dirt catcher 20 has to be pivoted through 270 ° from its position shown, so that the prongs 23 of the catcher 22 point towards the ramp 30.
  • a precomminution device 9 is connected upstream of the pulp pulverizer 1, which is only indicated schematically here.
  • FIG. 2 shows the phase of dissolving in the case of a fiber pulper according to the invention.
  • Garbage was introduced into the container 2 from above, water was added, and the rotor 4 was put into circulation.
  • the resulting suspension has a consistency of, for example, 7-10%.
  • the coarse dirt trap 20 is in the waiting position in the trough 10.
  • the slider 24 located between these two is closed.
  • the trough is connected to a dilution water line 25.
  • the dilution water supplied here can be return water, which accumulates at some point in the course of the process.
  • FIG. 5 shows the phase in which the coarse dirt is released by the rake.
  • a scraper device 27 is provided which can be actuated by a lifting cylinder unit in order to scrape off the coarse dirt from the prongs 23 of the catcher 22. It falls into a drip pan 28.
  • the rotor 4 is overhung.
  • the storage shown here, which is located above, has proven to be particularly advantageous.
  • the rotor 4 thus dips into the interior of the container 2 from above.
  • the biomass obtained can be thickened and fed to a digester. It can also be deposited as a rotte heap. Finally, anaerobic digestion can be used to obtain biogas.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Mechanical Engineering (AREA)
  • Paper (AREA)

Claims (7)

  1. Pulpeur, notamment pour défibrer des ordures ou du papier comprenant :
    1.1 : un récipient (2) de préférence cylindrique ou parallélépipédique à axe vertical,
    1.2 : un rotor (4) situé à la partie inférieure du récipient et d'axe également vertical,
    1.3 : un capteur de grosses impuretés (20) pouvant être introduit dans le récipient (2),
    ce pulpeur présentant les caractéristiques suivantes :
    1.4 : au volume intérieur du récipient (2) est raccordée une auge (5) pouvant recevoir le capteur de grosses impuretés,
    1.5 : le capteur de grosses impuretés (20) peut, par basculement autour d'un axe horizontal, passer en dehors de l'auge (10) à l'intérieur du récipient (2).
  2. Pulpeur selon la revendication 1, caractérisé en ce que le volume intérieur du récipient (2) peut être isolé de l'auge (10).
  3. Pulpeur selon une des revendications 1 ou 2, caractérisé en ce que le fond de l'auge (10), vu en coupe verticale, a un tracé en arc de cercle tandis qu'en coupe horizontale l'auge (10) a un tracé rectangulaire.
  4. Pulpeur selon une des revendications 1 à 3, caractérisé en ce que le capteur de grosses impuretés (20) comprend un capteur (22) équipé de doigts dirigés verticalement vers le bas lorsque le capteur (20) se trouve à l'intérieur du récipient.
  5. Pulpeur selon une des revendications 1 à 4, caractérisé en ce que le capteur (20) peut basculer sur au moins 270° environ.
  6. Pulpeur selon une des revendications 1 à 5, caractérisé en ce qu'un racleur (27) est associé au pulpeur (20) pour le débarrasser des grosses impuretés.
  7. Pulpeur selon une des revendications 1 à 6, caractérisé en ce que le rotor (4) est monté flottant dans un palier situé à la partie supérieure du volume intérieur du récipient (2) ou au-dessus de celui-ci.
EP93112454A 1992-10-17 1993-08-04 Pulpeur en particulier pour le traitement de déchets ménagers Expired - Lifetime EP0598187B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4235119A DE4235119C1 (de) 1992-10-17 1992-10-17 Faserstoffauflöser, insbesondere zum Auflösen von Hausmüll
DE4235119 1992-10-17

Publications (2)

Publication Number Publication Date
EP0598187A1 EP0598187A1 (fr) 1994-05-25
EP0598187B1 true EP0598187B1 (fr) 1996-05-22

Family

ID=6470752

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93112454A Expired - Lifetime EP0598187B1 (fr) 1992-10-17 1993-08-04 Pulpeur en particulier pour le traitement de déchets ménagers

Country Status (4)

Country Link
EP (1) EP0598187B1 (fr)
AT (1) ATE138431T1 (fr)
DE (1) DE4235119C1 (fr)
DK (1) DK0598187T3 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19824806A1 (de) * 1998-06-03 1999-12-09 Recycling Energie Abfall Siebvorrichtung und diese verwendende Stofflösevorrichtung
DE19829648A1 (de) * 1998-07-02 2000-03-09 Recycling Energie Abfall Grobschmutzfängervorrichtung zum Herausheben der Grobstoffe aus einem Pulper und entsprechendes Arbeitsverfahren

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19627282A1 (de) 1995-08-25 1997-02-27 Lohse Verwaltungs Gmbh Müllauflöser, insbesondere zum Auflösen von Bio-Haushaltsabfällen
EP0927788A3 (fr) * 1997-12-22 2000-05-03 Roediger Anlagenbau GmbH Procédé et dispositif pour séparer les matières lourdes et légères d'une suspension
DE102007048137C5 (de) * 2007-10-05 2019-06-19 Wilhelm Niemann Gmbh & Co. Verfahren und Aufbereitung von organischen Materialien für Biogasanlagen
SE538980C2 (sv) * 2013-05-07 2017-03-14 Valmet Oy En apparat för separering av partiklar i en massasuspension

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2691324A (en) * 1951-03-29 1954-10-12 Downingtown Mfg Co Apparatus for removing rags from stock pulpers
AT360828B (de) * 1978-03-06 1981-02-10 Escher Wyss Gmbh Sortiervorrichtung fuer aus altpapier gewonnene stofffluessigkeit
DE3024485C2 (de) * 1980-06-28 1982-10-28 Ed. Mann GmbH & Co KG Papierfabrik, 6719 Ebertsheim Vorrichtung zum Entfernen des Grob- und Schwerabfalles bei der Altpapieraufbereitung
DE3225026A1 (de) * 1982-07-05 1984-01-05 Martin Lohse GmbH, 7920 Heidenheim Vorrichtung zum entfernen des grob- und schwerabfalles bei der altpapieraufbereitung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19824806A1 (de) * 1998-06-03 1999-12-09 Recycling Energie Abfall Siebvorrichtung und diese verwendende Stofflösevorrichtung
DE19829648A1 (de) * 1998-07-02 2000-03-09 Recycling Energie Abfall Grobschmutzfängervorrichtung zum Herausheben der Grobstoffe aus einem Pulper und entsprechendes Arbeitsverfahren
DE19829648C2 (de) * 1998-07-02 2000-06-29 Recycling Energie Abfall Grobschmutzfängervorrichtung zum Herausheben der Grobstoffe aus einem Pulper

Also Published As

Publication number Publication date
DE4235119C1 (de) 1994-04-21
EP0598187A1 (fr) 1994-05-25
DK0598187T3 (da) 1996-10-07
ATE138431T1 (de) 1996-06-15

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