EP1297260B1 - Pompe de broyage - Google Patents

Pompe de broyage Download PDF

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Publication number
EP1297260B1
EP1297260B1 EP01951434A EP01951434A EP1297260B1 EP 1297260 B1 EP1297260 B1 EP 1297260B1 EP 01951434 A EP01951434 A EP 01951434A EP 01951434 A EP01951434 A EP 01951434A EP 1297260 B1 EP1297260 B1 EP 1297260B1
Authority
EP
European Patent Office
Prior art keywords
pump
cutting
comminutor
passages
rotating
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
EP01951434A
Other languages
German (de)
English (en)
Other versions
EP1297260A1 (fr
Inventor
Werner Arnswald
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP1297260A1 publication Critical patent/EP1297260A1/fr
Application granted granted Critical
Publication of EP1297260B1 publication Critical patent/EP1297260B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C13/00—Adaptations of machines or pumps for special use, e.g. for extremely high pressures
    • F04C13/001—Pumps for particular liquids

Definitions

  • the invention relates to a comminution pump for conveying of waste water containing solids, as a rotating displacement pump, with an electric motor, with a pump housing, with a fixed pump stator and an eccentrically mounted one Rotor and with a shredding device from at least one fixed and at least one rotating knife, the crushing device over the end remote from the drive shaft of the electric motor of the pump rotor is driven, the blades as one above the other Discs formed with cutting passages the cutting passages are circular or crescent-shaped Form cutting edges and at least two cutting passages in at least one angular position of the rotating Knife overlap at least partially.
  • Such a comminution pump is known from DE 198 02 025 C1 known.
  • This pump ensures the greatest possible freedom from blockages and undisturbed operation even when you are present of long-fiber and solid components in the medium.
  • a shredding device as described in DE 198 02 025 C1 is, not without exception, all long-fibrous contained in the waste water Components crushed satisfactorily.
  • Nylon stockings tend to be between the open spaces the knife to be pulled and around the pump rotor or to wrap it around the rotating knife and wind it up. This does not necessarily result in a blockage of the pump or constipation, the mode of operation the pump is limited.
  • the invention is therefore based on the object of the comminution device a pump of the type mentioned continue with regard to freedom from constipation and interference Presence of long-fiber and solid components in the To improve the medium.
  • Edge sections leading in the direction of rotation of the rotating knife the cutting passages each have a free space between undercut the knives.
  • a further significant improvement in the shredding performance the pump according to the invention is achieved in that in the fixed knife only one in relation to the central longitudinal axis of the pump housing offset or eccentrically arranged Cutting passage is provided.
  • the shredding pump according to DE 198 02 025 C1 were in contrast to this several cutting passages designed as circular holes provided on a concentric to the center of the Slices running circular arc are arranged.
  • the shredding performance of the invention Pump again increased significantly.
  • the cutting passage in the fixed knife slightly larger than those is in the rotating knife.
  • the rotating knife are preferably two cutting passages are provided.
  • the diameter of the rotating knife forming disc smaller than or equal to Half of the diameter of the knife forming the fixed knife Disc is.
  • the undercuts are preferably designed so that the Cutting edges of the cutting passages in the direction of rotation leading areas are interrupted. These areas are anyway passive during a cutting process. Such a geometry of the rotating knife has proven to be in almost every way proven optimal. It can be seen that the Passage area slightly increased through the cutting passages becomes.
  • the rotating knife is expediently in the conveying direction of the medium to be pumped arranged downstream.
  • the pump according to the invention consists of an electric motor, drive shaft, Coupling rod, joints, pump housing 1, pump stator 2 and pump rotor 3 and is known as an eccentric screw pump executed.
  • the Pump rotor 3 is in a known manner within the Pump stator 2 via the shaft of an electric motor a coupling rod attached to two joints. As a result, the pump rotor 3 takes place within the pump housing 1 a rotating and slightly radial movement.
  • Fig. 1 the suction side of the pump is shown, wherein in a funnel-shaped suction nozzle 4 a fixed knife 5 and a rotating knife 6 are arranged, both as circular discs are formed.
  • the suction nozzle 4 and the end of the pump housing 1 remote from the electric motor is coupled to one another by a flange connection 7.
  • the rotating knife 6 is non-rotatably on a knife shaft 8 attached, which in turn with a threaded pin 9 in the Front of the pump rotor 3 is screwed, so that a Rotary movement of the eccentrically mounted pump rotor 3 both a rotation as well as a radial deflection of the rotating Knife 6 causes.
  • the rotating knife 6 and / or the knife shaft 8 can be adjusted axially with the pump rotor 3 be connected to a setting of the game between the Allow knives 5 and 6.
  • the gap adjustment enables also an adjustment of the knives in case of wear.
  • the knives 5, 6 provided with cutting passages 10, 11, with 11 the Cutting passages in the rotating knife are designated and at 10 a single cutting passage in the fixed Knife 5 is designated.
  • At least the cutting passage 10 in the fixed knife is designed as a circular hole, that tapers downstream of the medium to be pumped and thus forms a peripheral cutting edge 12a.
  • the through that Center of the cutting passage 10 leading imaginary longitudinal axis 13 is laterally offset from the central longitudinal axis 14 of the pump housing 1 arranged so that there is an eccentric arrangement of the cutting passage 10 on the as fixed Knife 5 results.
  • the Cutting passages 11 on the one hand and the cutting passage 10 on the other hand are approximately in superimposed radius areas arranged so that the cutting passages 10, 11 in certain angular positions of the knives 5, 6 are permeable, i.e. overlap.
  • Form holes based on the geometry the cutting passages 10, 11 are each arc-shaped or sickle-shaped cutting edges 12a, 12b.
  • the cutting passages 11 in the rotating knife 6 taper upstream of the medium to be conveyed, such as this in particular Fig. 1 can be seen, these are only partially form circumferential cutting edges 12b.
  • the direction of rotation of the rotating knife 6 (indicated by arrow 18) to the right, i.e. from the in Fig. 2 selected viewing direction clockwise, the Term leading to a single cutting passage 11 is related.
  • the recesses forming the undercuts 15 reduce the open spaces of the superimposed ones Knives 5, 6, which reduces friction and wear as well as preventive blockages.
  • the recesses 15 can, for example, of the fixed Knife 5 facing side of the rotating knife 6 have been sunk out in such a way that how this turns out a combination of FIGS. 3 and 5 can be seen on the opposite side of the cutting edge 12b still preserved results in a paragraph 16 in the rotating knife 6, which extends approximately radially.
  • This kind of sinking the material of the rotating disc is going through the cutting passages 11 are slightly enlarged.
  • the one in the direction of rotation of the rotating knife 6 leading edge area of the Cutting passages 11 is reduced in thickness so that there is no cutting edge.
  • the cutting passages form 10, 11 in certain angular positions of the rotating Knife 6 a passage for the medium to be conveyed and about solids contained in this.
  • This passage has one approximately elliptical contour, which changes during the rotation of the Knife 6 draws in a sickle or arc, a pulling Cut to any solids contained in the medium to be pumped exercising.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Rotary Pumps (AREA)
  • Mechanical Treatment Of Semiconductor (AREA)
  • Luminescent Compositions (AREA)
  • Crushing And Pulverization Processes (AREA)

Claims (7)

  1. Pompe de broyage pour le transport d'eaux usées contenant des matières solides, en tant que pompe volumétrique rotative, comprenant un moteur électrique, un logement de pompe, un stator de pompe fixe et un rotor monté en position excentrique, ainsi qu'un dispositif de broyage se composant d'au moins une lame fixe et au moins une lame rotative, où le dispositif de broyage est entraíné au moyen de l'extrémité du rotor de pompe opposée à l'arbre d'entraínement du moteur électrique, où les lames sont réalisées en tant que disques superposés avec des passages de coupe, les passages de coupe constituent des arêtes de coupe en forme d'arcs de cercle ou de faucilles, et au moins deux passages de coupe se chevauchent au moins partiellement dans au moins une position d'angle de la lame rotative, caractérisée en ce que les sections de bord des passages de coupe en avance dans le sens de rotation de la lame rotative (6) présentent chacune une contre-dépouille constituant un espace libre entre les lames (5, 6).
  2. Pompe de broyage selon la revendication 1, caractérisée en ce que, dans la lame fixe (5), il est prévu un seul passage de coupe (10) agencée en position décalée ou excentrique par rapport à l'axe longitudinal médian (14) du logement (1) de la pompe.
  3. Pompe de broyage selon la revendication 2, caractérisée en ce que le passage de coupe (10) de la lame fixe (5) est plus grand que celui de la lame rotative (6).
  4. Pompe de broyage selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le diamètre du disque constituant la lame rotative (6) est inférieur ou égal à la moitié du diamètre du disque constituant la lame fixe (5).
  5. Pompe de broyage selon l'une quelconque des revendications 1 à 4, caractérisée en ce que les contre-dépouilles sont réalisées de telle sorte que les arêtes de coupe (12b) des passages de coupe (11) de la lame rotative (6) sont interrompues dans les zones en avance dans le sens de rotation.
  6. Pompe de broyage selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le passage de coupe (10) de la lame fixe (5) rétrécit en aval et constitue une arête de coupe (12a) oblique tournante.
  7. Pompe de broyage selon l'une quelconque des revendications 1 à 6, caractérisée en ce que les passages de coupe (11) de la lame rotative (6) s'élargissent en aval et constituent chacun une arête de coupe (12b) oblique partiellement tournante.
EP01951434A 2000-07-04 2001-06-26 Pompe de broyage Expired - Lifetime EP1297260B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE20011412U DE20011412U1 (de) 2000-07-04 2000-07-04 Zerkleinerungspumpe
DE20011412U 2000-07-04
PCT/DE2001/002351 WO2002002948A1 (fr) 2000-07-04 2001-06-26 Pompe de broyage

Publications (2)

Publication Number Publication Date
EP1297260A1 EP1297260A1 (fr) 2003-04-02
EP1297260B1 true EP1297260B1 (fr) 2004-02-11

Family

ID=7943380

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01951434A Expired - Lifetime EP1297260B1 (fr) 2000-07-04 2001-06-26 Pompe de broyage

Country Status (6)

Country Link
EP (1) EP1297260B1 (fr)
AT (1) ATE259469T1 (fr)
AU (1) AU2001272356A1 (fr)
DE (3) DE20011412U1 (fr)
HU (1) HUP0301705A2 (fr)
WO (1) WO2002002948A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH439982A (de) * 1964-06-29 1967-07-15 Bachmann Walter Güllenpumpe
DE1923821U (de) * 1965-07-06 1965-09-16 Eugen Soeding Exzenterschneckenpumpe.
DE1950502U (de) * 1966-07-30 1966-11-24 Eugen Soeding Exzenterschnekkenpumpe.
DE19802025C1 (de) * 1998-01-21 1999-06-10 Werner Dipl Ing Arnswald Zerkleinerungspumpe

Also Published As

Publication number Publication date
EP1297260A1 (fr) 2003-04-02
DE20011412U1 (de) 2001-11-15
AU2001272356A1 (en) 2002-01-14
HUP0301705A2 (en) 2004-01-28
DE50101483D1 (de) 2004-03-18
DE10193285D2 (de) 2003-06-05
ATE259469T1 (de) 2004-02-15
WO2002002948A1 (fr) 2002-01-10

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