EP1364700A2 - Device for cleaning concrete mixers - Google Patents

Device for cleaning concrete mixers Download PDF

Info

Publication number
EP1364700A2
EP1364700A2 EP03380116A EP03380116A EP1364700A2 EP 1364700 A2 EP1364700 A2 EP 1364700A2 EP 03380116 A EP03380116 A EP 03380116A EP 03380116 A EP03380116 A EP 03380116A EP 1364700 A2 EP1364700 A2 EP 1364700A2
Authority
EP
European Patent Office
Prior art keywords
nozzle
lid
pipe
main axle
hollow main
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
EP03380116A
Other languages
German (de)
French (fr)
Other versions
EP1364700A3 (en
EP1364700B1 (en
Inventor
Antonio Poyatos Diaz
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.)
Metalurgica Poyatos SA
Original Assignee
Metalurgica Poyatos SA
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 Metalurgica Poyatos SA filed Critical Metalurgica Poyatos SA
Publication of EP1364700A2 publication Critical patent/EP1364700A2/en
Publication of EP1364700A3 publication Critical patent/EP1364700A3/en
Application granted granted Critical
Publication of EP1364700B1 publication Critical patent/EP1364700B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • B01F35/10—Maintenance of mixers
    • B01F35/145—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means
    • B01F35/1452—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means using fluids
    • B01F35/1453—Washing or cleaning mixers not provided for in other groups in this subclass; Inhibiting build-up of material on machine parts using other means using fluids by means of jets of fluid, e.g. air
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/0804—Cleaning containers having tubular shape, e.g. casks, barrels, drums
    • B08B9/0813—Cleaning containers having tubular shape, e.g. casks, barrels, drums by the force of jets or sprays
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
    • B08B9/0936—Cleaning containers, e.g. tanks by the force of jets or sprays using rotating jets

Definitions

  • the present invention refers to a device for vigorous cleaning of the inside of concrete mixers, and in particular, for cleaning the paddle, the element which does the mixing.
  • Devices for cleaning concrete mixers do exist and consist in an array of fixed pipes containing orifices for spraying a cleaning fluid onto the elements of the mixer most likely to get dirty.
  • This solution has the drawing that the fluid is always sprayed onto the same parts and the cleaning process is therefore never complete, and there is also the problem that even though the paddle is moving, several nozzles are always needed, at least 3 or 4, and more nozzles are required if the area to be cleaned increases, incurring an additional cost of installing and maintaining several nozzles and distributors for the operation thereof.
  • An object of the present invention is to provide a device for cleaning concrete mixers which is a permanent and integral part thereof, producing a vigorous projection of cleaning fluid that reaches all parts of the inside of the mixer using a single nozzle.
  • a device which can be incorporated in the lid sealing the upper part of the drum, which is the outer container of the mixer, and which basically consists in a hollow main axle whose rotating action is driven by a motor, the lower part of the axle extending out at a right-angle into an arm with a nozzle holder at the end and a nozzle which can accommodate a plurality of spray orifices, which spins freely in the nozzle holder.
  • a first pipe runs along the inside of the main axle, whose upper part connects to the external supply of cleaning fluid via a rotary connector, while a cleaning fluid supply tube leads out from its lower part, which is inside the mixer, and ends in a mobile chamber in the nozzle holder.
  • the spray orifices on the nozzle are connected to a second internal pipe, which leads to the mobile chamber in the nozzle holder, enabling the cleaning fluid to be projected through the nozzle spray orifices, with the fluid entering the hollow axle via the rotary connector.
  • the rotating arm with the nozzle holder on the end is moved by a motor and, in turn, the nozzle is forced to spin around its longitudinal axis, by sufficient mobilization which is automatically produced using the circular movement of the rotating arm.
  • This means of mobilization may, preferably, consist of a single chain engaging with a fixed cog, which forms part of the mixer lid, and with a mobile cog, which is an integral part of the nozzle.
  • the mixer cleaning device (1) is situated on the lid (17) covering the drum (3), which is the external container of the mixer.
  • a freely rotating, hollow main axle (5) passes through the lid (17), guided on bearings (26), producing a first pipe (24) which is connected to a fixed chamber (21) situated on a rotary connector (11) to which the external supply of cleaning fluid is connected.
  • the hollow main axle (5) extends out at a right-angle from its lower part into a rotating arm (6) which moves with the hollow main axle (5), when the latter is powered by a motor (4) via a drive gear (18) and a driven gear (19).
  • the end of the rotating arm (6) extends into a nozzle holder (13) containing a freely-spinning nozzle (14) with a plurality of spray orifices (20), whose upper part ends in a mobile cog (8) with which a chain engages (9), the chain being coupled to a fixed cog (10) which forms part of the lid (17).
  • a supply tube (12) connects the first pipe (24) of the hollow main axle (5) to the mobile chamber (22) in the nozzle holder (13).
  • Both the hollow main axle (5) and the nozzle (14) are fitted with watertight joints (23).
  • the device functions as follows: when the paddle (2) is to be cleaned, as it has become clogged up as it turns, during the concrete mixing process driven by the paddle mechanism (16), the motor (4) is activated at the same time the rotary connector (11) is fed with cleaning fluid.
  • the fluid enters the fixed chamber (21) passing to the first pipe (24) of the hollow main axle (5) and, via the supply tube (12) to the mobile chamber (22) in the nozzle holder (13), reaching the spray orifices (20) connected to the second pipe (24).
  • a vigorous projection of fluid (15) thus reaches all parts of the inside of the mixer (1), caused by the spinning movement of the nozzle (14) (around the hollow main axle (5) and around its own axis).
  • the projections from the nozzle (14) are infinite and always spray in different directions.
  • the rotary connector (11), the hydraulic part of the nozzle holder (13) and, the whole circuit in general through which the cleaning fluid flows, can be produced in a variety of ways that do not affect the essential nature of the invention.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Accessories For Mixers (AREA)
  • Processing Of Solid Wastes (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Abstract

Comprising a hollow main axle (5) which passes through the lid (17) of the mixer (1), supplied by a cleaning fluid via a rotary connector (11) and which is forced to rotate on its axis by a motor (4), which extends into a rotating arm (6), on the end of which a nozzle (14) spins on its axis while making a circular movement caused by the mobilizing action produced by a chain (9) which engages with a fixed cog (10), which forms part of the lid (17), and with a mobile cog (8), which is an integral part of the nozzle (14). In this way, the nozzle (14), together with the spray orifices (20), through which the fluid is projected (15), makes a spinning movement, vigorously reaching all parts of the inside of the mixer, the projections from the nozzle being infinite and always spraying in different directions.

Description

  • The present invention refers to a device for vigorous cleaning of the inside of concrete mixers, and in particular, for cleaning the paddle, the element which does the mixing.
  • Devices for cleaning concrete mixers do exist and consist in an array of fixed pipes containing orifices for spraying a cleaning fluid onto the elements of the mixer most likely to get dirty. This solution has the drawing that the fluid is always sprayed onto the same parts and the cleaning process is therefore never complete, and there is also the problem that even though the paddle is moving, several nozzles are always needed, at least 3 or 4, and more nozzles are required if the area to be cleaned increases, incurring an additional cost of installing and maintaining several nozzles and distributors for the operation thereof.
  • An object of the present invention is to provide a device for cleaning concrete mixers which is a permanent and integral part thereof, producing a vigorous projection of cleaning fluid that reaches all parts of the inside of the mixer using a single nozzle.
  • To achieve the proposed object, a device has been developed which can be incorporated in the lid sealing the upper part of the drum, which is the outer container of the mixer, and which basically consists in a hollow main axle whose rotating action is driven by a motor, the lower part of the axle extending out at a right-angle into an arm with a nozzle holder at the end and a nozzle which can accommodate a plurality of spray orifices, which spins freely in the nozzle holder.
  • A first pipe runs along the inside of the main axle, whose upper part connects to the external supply of cleaning fluid via a rotary connector, while a cleaning fluid supply tube leads out from its lower part, which is inside the mixer, and ends in a mobile chamber in the nozzle holder. The spray orifices on the nozzle are connected to a second internal pipe, which leads to the mobile chamber in the nozzle holder, enabling the cleaning fluid to be projected through the nozzle spray orifices, with the fluid entering the hollow axle via the rotary connector.
  • As already explained, the rotating arm with the nozzle holder on the end is moved by a motor and, in turn, the nozzle is forced to spin around its longitudinal axis, by sufficient mobilization which is automatically produced using the circular movement of the rotating arm. This means of mobilization may, preferably, consist of a single chain engaging with a fixed cog, which forms part of the mixer lid, and with a mobile cog, which is an integral part of the nozzle.
  • To complement the above description and provide a better understanding of the characteristics of the invention, a detailed description is given of a preferred embodiment, using a set of drawings attached to this specification in which the following figures are represented (given as a guide only and are in no way restrictive).
    • Figure 1
    shows a schematic ground view of the device being the object of this invention.
    Figure 2
    shows a schematic elevational cross-section view of the invention device, showing in detail the rotary cleaning-fluid supply connector unit and the nozzle situated on the end of the rotating arm.
  • In these figures, the numerical references correspond to the following parts and elements:
  • 1. Mixer
  • 2. Paddle
  • 3. Drum
  • 4. Motor
  • 5. Hollow main axle
  • 6. Rotating arm
  • 8. Mobile cog
  • 9. Chain
  • 10. Fixed cog
  • 11. Rotary connector
  • 12. Supply tube
  • 13. Nozzle holder
  • 14. Nozzle
  • 15. Fluid projection
  • 16. Paddle mechanism
  • 17. Lid
  • 18. Drive gear
  • 19. Driven gear
  • 20. Spray orifices
  • 21. Fixed chamber
  • 22. Mobile chamber
  • 23. Watertight joints
  • 24. First pipe
  • 25. Second pipe
  • 26. Bearings
  • As can be seen in Figures 1 and 2, the mixer cleaning device (1) is situated on the lid (17) covering the drum (3), which is the external container of the mixer. A freely rotating, hollow main axle (5), passes through the lid (17), guided on bearings (26), producing a first pipe (24) which is connected to a fixed chamber (21) situated on a rotary connector (11) to which the external supply of cleaning fluid is connected. The hollow main axle (5) extends out at a right-angle from its lower part into a rotating arm (6) which moves with the hollow main axle (5), when the latter is powered by a motor (4) via a drive gear (18) and a driven gear (19).
  • The end of the rotating arm (6) extends into a nozzle holder (13) containing a freely-spinning nozzle (14) with a plurality of spray orifices (20), whose upper part ends in a mobile cog (8) with which a chain engages (9), the chain being coupled to a fixed cog (10) which forms part of the lid (17).
  • A supply tube (12) connects the first pipe (24) of the hollow main axle (5) to the mobile chamber (22) in the nozzle holder (13).
  • Both the hollow main axle (5) and the nozzle (14) are fitted with watertight joints (23).
  • The device functions as follows: when the paddle (2) is to be cleaned, as it has become clogged up as it turns, during the concrete mixing process driven by the paddle mechanism (16), the motor (4) is activated at the same time the rotary connector (11) is fed with cleaning fluid. The fluid enters the fixed chamber (21) passing to the first pipe (24) of the hollow main axle (5) and, via the supply tube (12) to the mobile chamber (22) in the nozzle holder (13), reaching the spray orifices (20) connected to the second pipe (24).
  • A vigorous projection of fluid (15) thus reaches all parts of the inside of the mixer (1), caused by the spinning movement of the nozzle (14) (around the hollow main axle (5) and around its own axis). The projections from the nozzle (14) are infinite and always spray in different directions.
  • It will be obvious to those skilled in the art, that determined variants and modifications, allowing the device to be adapted to different manufacturing methods and paddle design, will comply with the claim. For example, in the specification of preferred embodiment, a means of mobilizing the nozzle (14) has been given in the form of a chain (9), but any equivalent mechanism such as a gear pair or a flat or toothed belt on pulleys, could have been used.
  • Similarly, the rotary connector (11), the hydraulic part of the nozzle holder (13) and, the whole circuit in general through which the cleaning fluid flows, can be produced in a variety of ways that do not affect the essential nature of the invention.

Claims (3)

  1. Device for cleaning concrete mixers, characterized in that it comprises:
    a lid (17) which forms part of the external container of the mixer (1),
    a hollow main axle (5) which, passing through the lid (17), is forced to rotate on its axis by a motor (4), with a first pipe (24) inside, which is fed with cleaning fluid via a rotary connector (11), and an extension at a right-angle in the form of a rotating arm (6) with a nozzle holder (13) situated on the end,
    a nozzle (14), which spins freely in the nozzle holder (13), with a second pipe (25) inside, connected to a plurality of spray orifices (20) and connected to a mobile chamber (22) in the nozzle holder (13),
    a supply tube (12) which connects the first pipe (24) of the hollow main axle (5) to the mobile chamber (22) in the nozzle holder (13),
    means of mobilizing the nozzle (14) on its axis, when making a circular movement, driven by the rotating arm (6).
  2. Device for cleaning concrete mixers, according to claim 1, characterized in that the rotary connector (11) includes a fixed chamber (21) connected to the cleaning fluid supply, which connects to the first pipe (24) of the hollow main axle (5).
  3. Device for cleaning concrete mixers, according to claim 1, characterized in that the means of mobilizing the nozzle (14) on its axis comprises a chain (9) which engages with a fixed cog (10) which forms part of the lid (17), and with a mobile cog (8), which is an integral part of the nozzle (14).
EP03380116A 2002-05-24 2003-05-13 Device for cleaning concrete mixers Expired - Lifetime EP1364700B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES200201191A ES2223224B1 (en) 2002-05-24 2002-05-24 DEVICE FOR CLEANING CONCRETE MIXERS.
ES200201191 2002-05-24

Publications (3)

Publication Number Publication Date
EP1364700A2 true EP1364700A2 (en) 2003-11-26
EP1364700A3 EP1364700A3 (en) 2005-07-13
EP1364700B1 EP1364700B1 (en) 2006-10-04

Family

ID=29286312

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03380116A Expired - Lifetime EP1364700B1 (en) 2002-05-24 2003-05-13 Device for cleaning concrete mixers

Country Status (4)

Country Link
EP (1) EP1364700B1 (en)
AT (1) ATE341390T1 (en)
DE (1) DE60308747D1 (en)
ES (1) ES2223224B1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2428389A (en) * 2004-11-11 2007-01-31 Rapid Internat Ltd Cleaning system for a concrete mixer
CN113198379A (en) * 2021-05-12 2021-08-03 曹仲欧 A blendor for production of lithium cell electrode

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110860240A (en) * 2018-08-28 2020-03-06 崇州安多建材有限公司 Self-cleaning formula biconical blendor for building
CN111605076B (en) * 2020-06-05 2021-01-05 青岛润鑫腾建材科技有限公司 Mix earth stirring and cleaning equipment

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246041A (en) * 1975-05-28 1981-01-20 Rhone-Poulenc Industries Method and apparatus for cleaning a rotary agitator in a reactor
DE3114307A1 (en) * 1981-04-09 1982-10-28 Alfred Kärcher GmbH & Co, 7057 Winnenden Cleaning device for the mixing chamber of a concrete mixer
EP0608191A1 (en) * 1993-01-20 1994-07-27 Mebi Production S.A. Concrete mixer with high pressure washing device
JPH08192420A (en) * 1994-09-30 1996-07-30 Taiheiyo Kiko Kk Method and apparatus for washing concrete mixer

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3001534A (en) * 1959-08-05 1961-09-26 Jr Edward D Grant Tank car cleaning apparatus
FR2638107B1 (en) * 1988-10-21 1991-07-26 Duflos Tech Indles Sarl IMPROVEMENTS IN DEVICES FOR TREATING CAVITY AND IN PARTICULAR FOR CLEANING TANKS BY SPRAYING PRESSURE FLUID
JPH04161303A (en) * 1990-10-25 1992-06-04 Masato Ohori Cleaning device for kneading container for cement or the like

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4246041A (en) * 1975-05-28 1981-01-20 Rhone-Poulenc Industries Method and apparatus for cleaning a rotary agitator in a reactor
DE3114307A1 (en) * 1981-04-09 1982-10-28 Alfred Kärcher GmbH & Co, 7057 Winnenden Cleaning device for the mixing chamber of a concrete mixer
EP0608191A1 (en) * 1993-01-20 1994-07-27 Mebi Production S.A. Concrete mixer with high pressure washing device
JPH08192420A (en) * 1994-09-30 1996-07-30 Taiheiyo Kiko Kk Method and apparatus for washing concrete mixer

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 1996, no. 11, 29 November 1996 (1996-11-29) & JP 08 192420 A (TAIHEIYO KIKO KK), 30 July 1996 (1996-07-30) *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2428389A (en) * 2004-11-11 2007-01-31 Rapid Internat Ltd Cleaning system for a concrete mixer
CN113198379A (en) * 2021-05-12 2021-08-03 曹仲欧 A blendor for production of lithium cell electrode

Also Published As

Publication number Publication date
ES2223224B1 (en) 2006-05-16
EP1364700A3 (en) 2005-07-13
DE60308747D1 (en) 2006-11-16
ATE341390T1 (en) 2006-10-15
ES2223224A1 (en) 2005-02-16
EP1364700B1 (en) 2006-10-04

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