EP1721717A1 - Dispositif et procédé de fabrication d'une masse fluide - Google Patents

Dispositif et procédé de fabrication d'une masse fluide Download PDF

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Publication number
EP1721717A1
EP1721717A1 EP05010454A EP05010454A EP1721717A1 EP 1721717 A1 EP1721717 A1 EP 1721717A1 EP 05010454 A EP05010454 A EP 05010454A EP 05010454 A EP05010454 A EP 05010454A EP 1721717 A1 EP1721717 A1 EP 1721717A1
Authority
EP
European Patent Office
Prior art keywords
rotor
mixing tube
tube
mixer
rubber
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
EP05010454A
Other languages
German (de)
English (en)
Other versions
EP1721717B1 (fr
Inventor
Hans-Peter Irsch
Michael Duelli
Stefan Beck
Desmond Miller
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.)
Knauf PFT GmbH and Co KG
Original Assignee
Knauf PFT GmbH and Co KG
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 Knauf PFT GmbH and Co KG filed Critical Knauf PFT GmbH and Co KG
Priority to DE502005005028T priority Critical patent/DE502005005028D1/de
Priority to EP05010454A priority patent/EP1721717B1/fr
Priority to AT05010454T priority patent/ATE404339T1/de
Publication of EP1721717A1 publication Critical patent/EP1721717A1/fr
Application granted granted Critical
Publication of EP1721717B1 publication Critical patent/EP1721717B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C5/00—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions
    • B28C5/08—Apparatus or methods for producing mixtures of cement with other substances, e.g. slurries, mortars, porous or fibrous compositions using driven mechanical means affecting the mixing
    • B28C5/10—Mixing in containers not actuated to effect the mixing
    • B28C5/12—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers
    • B28C5/1238—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices
    • B28C5/1292—Mixing in containers not actuated to effect the mixing with stirrers sweeping through the materials, e.g. with incorporated feeding or discharging means or with oscillating stirrers for materials flowing continuously through the mixing device and with incorporated feeding or discharging devices with rotating stirring and feeding or discharging means fixed on the same axis, e.g. in an inclined container fed at its lower part
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/09—Stirrers characterised by the mounting of the stirrers with respect to the receptacle
    • B01F27/091—Stirrers characterised by the mounting of the stirrers with respect to the receptacle with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/21—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by their rotating shafts
    • B01F27/2123—Shafts with both stirring means and feeding or discharging means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/50—Mixing receptacles
    • B01F35/51—Mixing receptacles characterised by their material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/50—Mixing receptacles
    • B01F35/511—Mixing receptacles provided with liners, e.g. wear resistant or flexible liners
    • 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
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • F04C2/107—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member with helical teeth

Definitions

  • the invention relates to a method for producing a flowable composition, in particular a fine-grained mortar composition, such as a filler, according to the preamble of claim 1. Furthermore, the invention relates to a device for producing a flowable mortar composition according to the preamble of patent claim 3.
  • fine-grained mortar compounds such as fillers, which are used for filling of holes and cracks or for complete filling of plasterboard
  • the mortar composition is mixed by so-called Einsumpfen. Dry mortar is sprinkled on water, which absorbs the water, and the mortar mass is then mixed. Particularly in the case of fine-grained mortar masses, nodules and smaller lumps form, which make continuous mixing and conveying more difficult.
  • these fine-grained mortar mixtures are therefore first mixed in a separate mixer and fed after a longer mixing time of a pump for promotion. Thus, only a batchwise operation is possible in the prior art.
  • the apparatus comprises a main mixer for mixing dry mortar with water and an eccentric screw pump downstream of the main mixer for conveying the premixed mortar mass to a post-mixer.
  • the post-mixer is arranged at an outlet of the eccentric screw pump and has a Vane rotor, which is arranged centrally in a housing. Water is added to the housing, which is mixed with the mortar composition by the vane rotor to obtain a low-viscosity mortar composition. Smaller nodules or lumps, however, are hardly detected by the vane rotor because they can dodge the vane rotor.
  • a core idea of the method according to the invention is that the mortar composition is guided in the post-mixing between an active surface and a counter surface by the mortar mass is conveyed in the conveying direction along the counter surface and the effective surface is moved approximately or at least approximately transversely to the conveying direction of the mortar mass on the counter surface along , and in particular performs a rotational or orbital movement about a central axis of the post-mixer along the counter surface.
  • the mortar compound located between the surfaces Due to the movement of the active surface along the mating surface, the mortar compound located between the surfaces is exposed to comparatively high pressure, friction and shear forces. The still present in the mortar mass nodules or lumps are crushed and crushed between the active surface and the counter surface, so that the mortar composition is homogenized in an effective manner. As a result of the rotational or circulating movement of the active surface, the mortar composition is continuously pressed and rubbed, so that a continuous production and delivery of a substantially homogeneous mortar composition is guaranteed.
  • the effective area becomes substantially dense, i. essentially without a gap, moved along the opposite surface or at least slightly pressed against the mating surface, whereby the pressure acting on the mortar composition compressive, frictional and shear forces are further increased.
  • the active surface and / or the counter surface are elastic, so that they yield elastically during the passage and pressing of the mortar composition. Due to the elastic compliance of one or both surfaces, the mortar composition is carried out despite gapless contact or pressure contact of the surfaces in between.
  • the respective elastic surface is resiliently biased against the mortar composition, so that a crushing of the mortar composition is effected. By pinching the nodules or lumps are effectively crushed or at least significantly reduced.
  • the mating surface is elastic and the active surface is comparatively inelastic or rigid, so that only the mating surface yields elastically during the passage and pressing of the mortar composition. Due to the elastic mating surface and the inelastic or rigid active surface of the pressure on the mortar mass is increased at the same time squeezing the mortar mass between the surfaces noticeably, so that even smaller lumps or nodules are crushed.
  • the elastic and inelastic behavior of the surfaces is reversed, wherein the effective surface is elastic and the mating surface is comparatively inelastic or rigid, so that only the active surface yields elastically during the passage and pressing of the mortar mass.
  • the mortar composition is squeezed between the surfaces and at the same time exposed to increased pressure.
  • both the active surface and the mating surface can be elastic, wherein it is particularly advantageous if the active surface is additionally pressed against the mating surface to exert or maintain an increased pressure on the mortar mass.
  • the invention further relates to an apparatus for producing a flowable composition according to claim 3.
  • a core idea of the device according to the invention is that the post-mixer has a rotor with an active surface and a mixing tube with a counter surface, wherein the rotor is arranged eccentrically in the mixing tube and a Pump rotor, in particular an eccentric screw rotor of the eccentric screw pump, is driven such that it is rotatable with its active surface about a central axis of the mixing tube along the counter surface.
  • the nodules or lumps in the mortar mass are continuously comminuted and dissolved, so that a substantially smooth and homogeneous mortar mass is obtained.
  • the rotational or orbital motion of the rotor is tuned to the pumping or conveying movement of the screw rotor, so that reaches an approximately simultaneous, continuous promotion and smoothing or homogenization of the mortar mass becomes.
  • the rotor of the post-mixer is switched on and off via the worm rotor, whereby the operability is considerably simplified.
  • the mating surface is a cylindrical inner surface of the mixing tube and the active surface is a, in particular cylindrical, outer surface of the rotor.
  • the rotor is in particular elongated, preferably rod-shaped or cone-shaped, designed and / or rotor may be sized in terms of its length so that it is slightly shorter, equal to or longer than the length of the mixing tube.
  • the rotor extends substantially through the entire mixing tube.
  • the rotor can also have an oval or elliptical cross section instead of a circular cross section and / or be variable in its cross section axially over its length, for example becomes thicker in the direction of flow.
  • the rotor may bear against a support surface to absorb the reaction forces or counterforces at a return of the pump, i. when the pump moves opposite to the direction of conveyance.
  • the support surface is within the mixing tube when the rotor is the same length as the mixing tube, flush with the end thereof, or if the rotor protrudes slightly from the mixing tube. arranged outside of the mixing tube.
  • the post-mixer is disposed at an outlet of the eccentric screw pump, and the rotor of the post-mixer is disposed at an eccentric end portion of the screw rotor associated with the post-mixer.
  • the rotor of the post-mixer thus forms an extension of the screw rotor, wherein the eccentric arrangement or design of the screw rotor determines the eccentric arrangement of the rotor in the mixing tube.
  • the rotational movement of the eccentric screw rotor is transferred directly to the rotor of the post-mixer, so that no additional coupling or transmission means are needed.
  • the rotor of the post-mixer is formed integrally with the screw rotor of the eccentric screw pump, whereby a high stability is ensured.
  • the rotor of the post-mixer is connected by welding and / or fastening means with the worm rotor of the eccentric screw pump, wherein the worm rotor has an extension at its the end mixer associated end region.
  • the extension serves for attachment or connection of the rotor to or with the worm rotor.
  • the active surface of the rotor is substantially close to the mating surface of the mixing tube or at least slightly pressed against the mating surface, wherein the active surface and / or the mating surface of an elastic material, such as a made of synthetic or natural rubber, wear-resistant rubber are made.
  • an elastic material such as a made of synthetic or natural rubber, wear-resistant rubber.
  • the effective surface of the rotor and the mating surface of the mixing tube are formed substantially flat or smooth, whereby a uniform crushing of the mortar mass is achieved over the surfaces.
  • the active surface of the rotor and the counter surface of the mixing tube are each formed of materials having different elastic properties, wherein as material pair an elastic material, such as rubber, and a comparatively inelastic material, such as metal, preferably steel.
  • material pair an elastic material, such as rubber, and a comparatively inelastic material, such as metal, preferably steel.
  • the mating surface of the mixing tube is formed of rubber, wherein the mixing tube has an outer tube and a rubber insert which is attached to the inside of the outer tube and whose inner surface forms the counter surface, and the active surface of the rotor is in particular made of metal, preferably from Steel formed.
  • the mixing tube of the post-mixer is formed integrally with a delivery tube of the eccentric screw pump, wherein the outer tube and the rubber insert of the mixing tube are each formed integrally with an outer tube and a rubber insert of the delivery tube.
  • the remixer and the eccentric screw pump are combined by this structural measure to a compact and inexpensive to produce unit.
  • the mixing tube of the post-mixer and a delivery tube of the eccentric screw pump are formed as separate parts and fasteners, such as a flange, connected to each other, wherein the flange has a radially inwardly projecting, annular projection, which between the rubber insert of the mixing tube and a rubber insert of the conveyor tube is arranged and sealingly applied thereto.
  • fasteners such as a flange
  • the mixing tube and the delivery tube as separate parts, the mixing tube can be used as needed and removed, for example, for cleaning again.
  • the sealing projection of the flange prevents penetration of mortar mass between the two rubber parts.
  • the rubber insert of the mixing tube is materially connected to the outer tube of the mixing tube by vulcanization, whereby a tight fit of the rubber insert is achieved on the outer tube.
  • the counter surface of the mixing tube is made of metal, preferably steel, wherein the mixing tube comprises a steel tube whose inner surface forms the counter surface, and the effective surface of the rotor is formed of rubber, wherein the rotor comprises a rotor core, which with a rubber coating, for example in the form of a rubber tube is provided, whose outer surface forms the effective surface of the rotor.
  • the rotor core is suitably made of metal or steel and forms a stable base for the rubber coating. By the rubber coating an elastically yielding effective surface is created, which can exert on the basis of the rigid rotor core at the same time an increased pressure on the mortar mass.
  • the rotor core and the rubber coating is attached to the extension of the screw rotor, wherein the rotor core are preferably fixed by welding and the rubber coating on one or more fasteners on the extension.
  • This constructive measure of the rubber coating is securely attached to the rotor core and also withstands high stress.
  • the rubber coating may be glued to the rotor core.
  • the apparatus comprises a main mixer for mixing dry mortar and water (not shown).
  • the main mixer is followed by an eccentric screw pump 8 in order to convey the premixed mortar composition, in particular a fine-grained mortar composition, such as a filler, in the conveying direction F to a post-mixer 1.
  • the eccentric screw pump 8 has a delivery tube 10, which comprises an outer tube 11 and a rubber insert 12, which is arranged on the inside of the outer tube 11.
  • the rubber insert 12 forms a screw-shaped conveying channel 13, through which the mortar composition is pumped by means of a rotating in the conveying channel 13, eccentric screw rotor 9 to the after-mixer 1.
  • the secondary mixer 1 is arranged at an outlet 14 of the eccentric screw pump 8 and comprises a mixing tube 4 and an elongated, in particular rod-shaped or pin-shaped rotor 2, which is arranged eccentrically in the mixing tube 4.
  • the rotor 2 is arranged on an end region 25 of the screw rotor 9 assigned to the post-mixer 1 and formed integrally therewith.
  • the rotor 2 of the post-mixer 1 extends from the screw rotor 9 in the conveying direction F or parallel to a central axis A of the mixing tube 4 over the length L of the mixing tube 4 and protrudes a little way out of the mixing tube 4, against a support plate or a support other support element (eg pin) (not shown) support.
  • the support can be made flush at the end of the mixing tube or even in the mixing tube when the support member projects into the mixing tube.
  • the mixing tube 4 comprises an outer tube 6 and a rubber insert 7, which is attached to the inside of the outer tube 6 and is materially connected to the outer tube 6 by vulcanization.
  • the rotor 2 of the post-mixer 1 and the worm rotor 9 are made of metal, suitably of steel.
  • the rubber insert 7 and the outer tube 6 of the mixing tube 4 are each formed integrally with the rubber insert 12 and the outer tube 11 of the conveyor tube 10, so that the after-mixer 1 forms an integral part of the eccentric screw pump 8.
  • the cylindrical outer surface of the rotor 2 forms an active surface 3 which is substantially dense, i. essentially without gaps, abuts the cylindrical inner surface of the rubber insert 7.
  • the inner surface of the rubber insert 7 forms a cooperating with the inelastic or rigid active surface 3 of the rotor 2 elastic mating surface 5.
  • the rotor 2 may be pressed with its active surface 3 against the mating surface 5 of the mixing tube 4.
  • the rotor 2 is driven by the worm rotor 9, so that it rotates with its active surface 3 in accordance with the rotational movement of the worm rotor 9 about the central axis A along the mating surface 5.
  • the mortar mass which is conveyed along the opposite surface 5 of the mixing tube 4 in the conveying direction F, is passed through the rotational or rotational movement of the rotor 2 between the inelastic or rigid active surface 3 of the rotor 2 and the elastic counter surface 5, pressed and rubbed, wherein the elastic counter surface 5 yields elastically during the passage and pressing of the mortar composition.
  • the active surface 3 of the rotor 2 and the mating surface 5 of the mixing tube 4 are formed substantially flat or smooth.
  • the active surface or the mating surface may be structured and provided, for example, with grooves or beads running transversely to the conveying direction F (not shown).
  • the rubber insert 7 and the rubber insert 12 are formed from a wear-resistant elastomer made of synthetic or natural rubber, for example NR and / or SBR.
  • FIG. 2 shows an alternative embodiment of the device of FIG. 1 in a sectional view.
  • the mixing tube 4 of the post-mixer 1 and the delivery tube 10 of the eccentric screw pump 9 are formed as separate parts and connected to each other via a flange 15.
  • the flange 15 has a radially inwardly projecting, annular projection 16 which is disposed between the rubber insert 7 of the mixing tube 4 and the rubber insert 12 of the conveyor tube 10 and sealingly abuts thereon.
  • the projection 16 terminates approximately flush with the rubber insert 7 and the rubber insert 12 and thus forms a continuous transition from the rubber insert 12 to the rubber insert 7.
  • FIG. 3 shows a schematic representation of a second embodiment of the device in a sectional view.
  • the mixing tube 4 of the post-mixer 1 comprises a steel tube 18, the inner surface of which forms the mating surface 5.
  • the rotor 2 of the post-mixer 1 has a rotor core 26, which is made of metal, in particular made of steel and with one end to the end portion 25 of the screw rotor 9 located extension 19 loosely applied and is supported at the other end again on the support member, not shown.
  • the rotor core 26 is provided with a rubber coating 17 in the form of a rubber hose whose outer surface forms the active surface 3.
  • the rubber cover 17 is attached to the extension 19 of the worm rotor 9 via fastening elements 20, for example via screw or clamping means.
  • the active surface 3 of the rotor 2 is elastic and the mating surface 5 of the mixing tube 4 is comparatively inelastic or rigid.
  • the rotor 2 rests with its elastic active surface 3 substantially close to the inelastic or rigid mating surface 5.
  • the rotor 2 with its active surface 3 against the counter surface 5 to be pressed.
  • the mortar composition is passed through the rotational or rotational movement of the rotor 2 between the elastic active surface 3 of the rotor 2 and the inelastic mating surface 5, pressed and rubbed, wherein the elastic active surface 3 yields elastically during the execution and pressing of the mortar composition.
  • the steel pipe 18 is connected via a flange 21 to the delivery pipe 10 of the eccentric screw pump 8.
  • the flange 21 has a first, radially inwardly projecting, annular projection 22 which is associated with the conveying tube 10 and sealingly abuts the rubber insert 12 of the Föxderrohrs 10.
  • a second, radially inwardly projecting, annular projection 24 of the flange 21 is associated with the steel tube 18 and sealingly abuts against it. Between the first projection 22 and the second projection 24, a gap 23 for carrying out the laterally or radially outwardly projecting fastening elements 20 is formed.
  • both the active surface 3 of the rotor 2 and the counter surface 5 of the mixing tube 4 may be elastic, wherein the mixing tube 4 has the rubber insert 7 and the rotor 2 and the rotor core 26 is additionally provided with the rubber coating 17.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Rotary Pumps (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
EP05010454A 2005-05-13 2005-05-13 Dispositif et procédé de fabrication d'une masse fluide Active EP1721717B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE502005005028T DE502005005028D1 (de) 2005-05-13 2005-05-13 Verfahren und Vorrichtung zur Herstellung einer fliessfähigen Masse
EP05010454A EP1721717B1 (fr) 2005-05-13 2005-05-13 Dispositif et procédé de fabrication d'une masse fluide
AT05010454T ATE404339T1 (de) 2005-05-13 2005-05-13 Verfahren und vorrichtung zur herstellung einer fliessfähigen masse

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP05010454A EP1721717B1 (fr) 2005-05-13 2005-05-13 Dispositif et procédé de fabrication d'une masse fluide

Publications (2)

Publication Number Publication Date
EP1721717A1 true EP1721717A1 (fr) 2006-11-15
EP1721717B1 EP1721717B1 (fr) 2008-08-13

Family

ID=34981989

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05010454A Active EP1721717B1 (fr) 2005-05-13 2005-05-13 Dispositif et procédé de fabrication d'une masse fluide

Country Status (3)

Country Link
EP (1) EP1721717B1 (fr)
AT (1) ATE404339T1 (fr)
DE (1) DE502005005028D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007013820U1 (de) 2007-10-02 2008-11-06 Knauf Pft Gmbh & Co.Kg Vorrichtung zum Fördern einer fließfähigen Fördermasse, insbesondere einer faserhaltigen Biomasse
WO2011069754A3 (fr) * 2009-12-09 2012-09-13 Putzmeister Mörtelmaschinen GmbH Pompe à vis sans fin excentrique
DE202018103387U1 (de) 2018-06-15 2019-06-18 Knauf Pft Gmbh & Co. Kg Vorrichtung zur Herstellung einer fließfähigen Masse

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580551A (en) * 1951-03-08 1952-01-01 Kacena Jerome Scraper-blade assembly for plaster mixers and the like
DE1117981B (de) * 1957-05-16 1961-11-23 Cfmc Vorrichtung zum Mischen pulverfoermiger Stoffe
DE7046148U (de) * 1969-12-16 1971-12-09 Trelleborgs Gummifabriks Ab Mischerfluegel oder -schaufel insbesondere fuer zement- und betonmischer
US4515483A (en) * 1982-08-16 1985-05-07 Schering Aktiengesellschaft Apparatus for removing substances from the inner walls of vessels
AT385309B (de) * 1986-06-13 1988-03-25 Gd Anker Gmbh & Co Kg Vorrichtung zur hochdruckfoerderung von baustoffen
EP0496685A1 (fr) * 1991-01-22 1992-07-29 Omniplastic S.A. Procédé et dispositif de préparation, de transfert et d'application en continu d'une suspension minérale aqueuse fluide de ragréage

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2580551A (en) * 1951-03-08 1952-01-01 Kacena Jerome Scraper-blade assembly for plaster mixers and the like
DE1117981B (de) * 1957-05-16 1961-11-23 Cfmc Vorrichtung zum Mischen pulverfoermiger Stoffe
DE7046148U (de) * 1969-12-16 1971-12-09 Trelleborgs Gummifabriks Ab Mischerfluegel oder -schaufel insbesondere fuer zement- und betonmischer
US4515483A (en) * 1982-08-16 1985-05-07 Schering Aktiengesellschaft Apparatus for removing substances from the inner walls of vessels
AT385309B (de) * 1986-06-13 1988-03-25 Gd Anker Gmbh & Co Kg Vorrichtung zur hochdruckfoerderung von baustoffen
EP0496685A1 (fr) * 1991-01-22 1992-07-29 Omniplastic S.A. Procédé et dispositif de préparation, de transfert et d'application en continu d'une suspension minérale aqueuse fluide de ragréage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202007013820U1 (de) 2007-10-02 2008-11-06 Knauf Pft Gmbh & Co.Kg Vorrichtung zum Fördern einer fließfähigen Fördermasse, insbesondere einer faserhaltigen Biomasse
WO2011069754A3 (fr) * 2009-12-09 2012-09-13 Putzmeister Mörtelmaschinen GmbH Pompe à vis sans fin excentrique
DE202018103387U1 (de) 2018-06-15 2019-06-18 Knauf Pft Gmbh & Co. Kg Vorrichtung zur Herstellung einer fließfähigen Masse
EP3581264A1 (fr) 2018-06-15 2019-12-18 Knauf PFT GmbH & Co. KG Dispositif de fabrication d'une matière coulante

Also Published As

Publication number Publication date
DE502005005028D1 (de) 2008-09-25
ATE404339T1 (de) 2008-08-15
EP1721717B1 (fr) 2008-08-13

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