EP1057602B1 - Mixer for concrete and similar mixtures provided with mixing shafts with double motorization - Google Patents

Mixer for concrete and similar mixtures provided with mixing shafts with double motorization Download PDF

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Publication number
EP1057602B1
EP1057602B1 EP00830390A EP00830390A EP1057602B1 EP 1057602 B1 EP1057602 B1 EP 1057602B1 EP 00830390 A EP00830390 A EP 00830390A EP 00830390 A EP00830390 A EP 00830390A EP 1057602 B1 EP1057602 B1 EP 1057602B1
Authority
EP
European Patent Office
Prior art keywords
mixer
concrete
tank
mixing
similar mixtures
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.)
Revoked
Application number
EP00830390A
Other languages
German (de)
French (fr)
Other versions
EP1057602A3 (en
EP1057602A2 (en
Inventor
Paolo Galletti
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.)
Officine Meccaniche Galletti Omg - Srl
Original Assignee
Officine Meccaniche Galletti Omg - Srl
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
Family has litigation
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Application filed by Officine Meccaniche Galletti Omg - Srl filed Critical Officine Meccaniche Galletti Omg - Srl
Publication of EP1057602A2 publication Critical patent/EP1057602A2/en
Publication of EP1057602A3 publication Critical patent/EP1057602A3/en
Application granted granted Critical
Publication of EP1057602B1 publication Critical patent/EP1057602B1/en
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
    • B28C5/0806—Details; Accessories
    • 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
    • B28C5/0806—Details; Accessories
    • B28C5/0831—Drives or drive systems, e.g. toothed racks, winches
    • 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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
    • B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
    • B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
    • B01F27/703—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with stirrers rotating at different speeds
    • 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
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • 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
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • 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
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/321—Disposition of the drive
    • B01F35/3212—Disposition of the drive mounted on the receptacle
    • 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
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/321—Disposition of the drive
    • B01F35/3215—Disposition of the drive the driving system comprising more than one motor, e.g. having an auxiliary motor or comprising independently driven elements
    • B01F35/32151—Driving the stirrer axis from both ends of the axis, i.e. using at least two motors per shaft
    • 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
    • B28C5/14—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 the stirrers having motion about a horizontal or substantially horizontal axis
    • B28C5/146—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 the stirrers having motion about a horizontal or substantially horizontal axis with several stirrers with parallel shafts in one container
    • 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
    • B01F27/23—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis
    • B01F27/232—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes
    • B01F27/2322—Mixers with rotary stirring devices in fixed receptacles; Kneaders characterised by the orientation or disposition of the rotor axis with two or more rotation axes with parallel axes
    • 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
    • B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis

Definitions

  • the present patent application relates to a mixer for concrete and similar mixtures, provided with two mixing shafts with horizontal axis assisted by double motorization.
  • mixers for concrete or similar mixtures currently comprise a large tank with two counter-rotating shafts with horizontal axis, on which series of radial arms used to mix the compound contained in the tank are fitted see, for example, document DE-C-939 200.
  • each shaft is fitted and supported on two opposite walls of the tank, it being also provided that on the outside of the tank one end of each shaft is coupled with the geared motor capable of rotating the shaft, while the other end of the shaft is supported by a suitable bearing fixed to the wall of the tank.
  • each mixing shaft is assisted by a very powerful geared motor.
  • the purpose of the present invention is to realise mixers with very large mixing tanks with respect to ordinary mixers, thus avoiding the need of manufacturing the expensive "special" geared motors with large dimensions mentioned above.
  • each geared motor must be applied to each corresponding end of the mixing shaft externally on the tank wall.
  • the mixer (1) comprises a rectangular mixing tank (2) provided with a cover (3) with lateral openings (3a).
  • the ends of two counter-rotating parallel mixing shafts with horizontal axis are fitted to the transversal walls (4) of the tank (2).
  • the main characteristic of the invention is represented by the fact that it has four geared motors, whereby each end of each shaft is coupled with one of the corresponding geared motors (5) of standard dimensions and power located externally on the corresponding transversal walls (4) of the tank (2).

Abstract

The present invention relates to a mixer for concrete and similar mixtures, of the type provided with a rectangular mixing tank (2), on whose lateral walls (4) the ends of two counter-rotating parallel mixing shafts with horizontal axis are fitted, it being provided that each end of each shaft is coupled with a geared motor (5) of standard size and power located externally on the bearing wall (4) of the tank (2). <IMAGE>

Description

  • The present patent application relates to a mixer for concrete and similar mixtures, provided with two mixing shafts with horizontal axis assisted by double motorization.
  • As it is known, mixers for concrete or similar mixtures currently comprise a large tank with two counter-rotating shafts with horizontal axis, on which series of radial arms used to mix the compound contained in the tank are fitted see, for example, document DE-C-939 200.
  • According to the current technology, each shaft is fitted and supported on two opposite walls of the tank, it being also provided that on the outside of the tank one end of each shaft is coupled with the geared motor capable of rotating the shaft, while the other end of the shaft is supported by a suitable bearing fixed to the wall of the tank.
  • In view of the poor fluidity of the compounds to be mixed, each mixing shaft is assisted by a very powerful geared motor.
  • This particular requirement has so far hindered the building of larger mixers, since the mixing of large volumes of compound requires the adoption of geared motors with higher dimensions and more power compared to the models currently produced by manufacturers.
  • For this reason, users in need of larger mixers have been so far forced to ask manufacturers to design and produce "special" geared motors with very high power, involving great difficulties and expenses.
  • The purpose of the present invention is to realise mixers with very large mixing tanks with respect to ordinary mixers, thus avoiding the need of manufacturing the expensive "special" geared motors with large dimensions mentioned above.
  • According to the present invention, a pair of standard geared motors is fitted to each mixing shaft of the mixer. More precisely, each geared motor must be applied to each corresponding end of the mixing shaft externally on the tank wall.
  • It appears obvious that such a mixing shaft can be provided with high power ― that is the power of the two geared motors - without requesting special parts or modifying the general structure of the mixer.
  • For major clarity the description of the invention continues with reference to the enclosed drawings, which are intended for purposes of illustration and not in a limiting sense, whereby fig. 1, 2 and 3 are a side view, a front view and a top view, respectively, of the mixer according to the present invention.
  • With reference to the enclosed figures, the mixer (1) according to the present invention comprises a rectangular mixing tank (2) provided with a cover (3) with lateral openings (3a). The ends of two counter-rotating parallel mixing shafts with horizontal axis are fitted to the transversal walls (4) of the tank (2).
  • As mentioned earlier, the main characteristic of the invention is represented by the fact that it has four geared motors, whereby each end of each shaft is coupled with one of the corresponding geared motors (5) of standard dimensions and power located externally on the corresponding transversal walls (4) of the tank (2).

Claims (1)

  1. Mixer for concrete and similar mixtures, of the type provided with a preferably rectangular mixing tank (2), on whose transversal walls (4) the ends of two counter-rotatable parallel mixing shafts with horizontal axis are fitted to support corresponding series of radial mixing arms, characterised in that it has four geared motors, whereby each end of each shaft is coupled with one of the corresponding geared motors (5) located externally on the corresponding transversal walls (4) of the tank (2).
EP00830390A 1999-06-02 2000-05-31 Mixer for concrete and similar mixtures provided with mixing shafts with double motorization Revoked EP1057602B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT1999MC000021U IT248352Y1 (en) 1999-06-02 1999-06-02 MIXER FOR CONCRETE AND SIMILAR MIXTURES, EQUIPPED WITH MIXING SHAFTS WITH DOUBLE MOTORIZATION
ITMC990021U 1999-06-02

Publications (3)

Publication Number Publication Date
EP1057602A2 EP1057602A2 (en) 2000-12-06
EP1057602A3 EP1057602A3 (en) 2002-07-31
EP1057602B1 true EP1057602B1 (en) 2004-01-02

Family

ID=11357657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00830390A Revoked EP1057602B1 (en) 1999-06-02 2000-05-31 Mixer for concrete and similar mixtures provided with mixing shafts with double motorization

Country Status (5)

Country Link
EP (1) EP1057602B1 (en)
AT (1) ATE257066T1 (en)
DE (1) DE60007484T2 (en)
ES (1) ES2213561T3 (en)
IT (1) IT248352Y1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2958866B1 (en) * 2010-04-20 2012-06-08 Emily Ets BUCKET COMPRISING A DOUBLE-DRIVEN MIXING AND / OR DISTRIBUTION MEMBER

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE939200C (en) * 1952-10-11 1956-02-16 Werner & Pfleiderer Machine for the continuous processing of dry, pulpy or plastic masses using conveyor screws
JPS57107232A (en) * 1980-12-25 1982-07-03 Ishikawajima Harima Heavy Ind Co Ltd Operating method for mixer
DE19536946A1 (en) * 1995-10-04 1997-04-10 List Ag Kneader mixer for mechanical and/or thermal treatment of materials

Also Published As

Publication number Publication date
ATE257066T1 (en) 2004-01-15
ITMC990021U1 (en) 2000-12-02
EP1057602A3 (en) 2002-07-31
EP1057602A2 (en) 2000-12-06
DE60007484D1 (en) 2004-02-05
ITMC990021V0 (en) 1999-06-02
ES2213561T3 (en) 2004-09-01
DE60007484T2 (en) 2004-11-25
IT248352Y1 (en) 2003-01-28

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