EP2428341A2 - Axe de mélangeur pour un mélangeur à arbre double et mélangeur à arbre double - Google Patents

Axe de mélangeur pour un mélangeur à arbre double et mélangeur à arbre double Download PDF

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Publication number
EP2428341A2
EP2428341A2 EP11179361A EP11179361A EP2428341A2 EP 2428341 A2 EP2428341 A2 EP 2428341A2 EP 11179361 A EP11179361 A EP 11179361A EP 11179361 A EP11179361 A EP 11179361A EP 2428341 A2 EP2428341 A2 EP 2428341A2
Authority
EP
European Patent Office
Prior art keywords
mixer
mixing
axis
attached
fastening point
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
EP11179361A
Other languages
German (de)
English (en)
Other versions
EP2428341A3 (fr
EP2428341B1 (fr
Inventor
Timo Suutarinen
Mikko Henriksson
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.)
Elematic Oyj
Original Assignee
Elematic Oyj
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Publication date
Application filed by Elematic Oyj filed Critical Elematic Oyj
Publication of EP2428341A2 publication Critical patent/EP2428341A2/fr
Publication of EP2428341A3 publication Critical patent/EP2428341A3/fr
Application granted granted Critical
Publication of EP2428341B1 publication Critical patent/EP2428341B1/fr
Not-in-force 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
    • B28C5/14—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
    • B01F27/05—Stirrers
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/071—Fixing of the stirrer to the shaft
    • 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
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0723—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis oblique with respect to the rotating axis
    • 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
    • B01F27/07—Stirrers characterised by their mounting on the shaft
    • B01F27/072—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis
    • B01F27/0724—Stirrers characterised by their mounting on the shaft characterised by the disposition of the stirrers with respect to the rotating axis directly mounted on the rotating axis
    • 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
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
    • B01F27/1144—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections with a plurality of blades following a helical path on a shaft or a blade support
    • 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
    • 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
    • B01F27/702—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 intermeshing paddles
    • 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
    • B28C5/148—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 the stirrer shaft carrying a plurality of radially extending mixing bars

Definitions

  • the invention relates to the mixer axis of a dual axis mixer used in the production of concrete mix, as well as to a dual axis mixer provided with this kind of mixer axis. More precisely, the invention relates to the positioning and quantity of mixer elements arranged on the mixer axis.
  • An apparatus used in the production of concrete mix is a dual axis mixer where the concrete mix to be produced is mixed by intermediation of mixing means attached to two axes contained in the mixing tank.
  • the mixing axes are arranged horizontally in the mixing tank.
  • the mixing means attached to the mixing axes comprise mixer shafts fastened to the mixing axes, said shafts protruding essentially radially from the mixing axis, as well as mixer blades attached to the shaft ends.
  • the mixing effect obtained in the concrete mix to be produced is typically better and more efficient than the mixing effect obtained with conventional single axis mixers, which means that by using dual axis mixers, larger quantities of concrete mix can be produced more rapidly.
  • the most essential objective in the development of concrete mixers is a faster production process for concrete mix, and said objective is achieved by increasing the capacity of the mixer by more efficient mixing of the concrete mix. Said objective is emphasized particularly in the production of concrete mixes requiring longer mixing periods, such as polymer mixes. With dual axis mixers, it has been attempted to reach said objective by increasing the rotation speeds of the mixing axes of the mixer.
  • an increase in the capacity of the dual axis mixer is achieved by increasing the number of the mixer elements in the mixer, by altering the shape of the mixer elements and by positioning said mixer elements on the mixing axis.
  • the number of the mixer elements connected to the mixing axes i.e. the number of the mixing shafts attached to the mixing axis and of the mixer blades attached to said shafts has been increased in comparison with conventional arrangements. Moreover, the increase in the mixer elements has been realized at certain fastening points of said mixer elements, and the number of blades attached to a single shaft has likewise been increased.
  • mixer elements are attached at nine successive mixer element fastening points, so that at the first, second and last fastening point, the total area of the mixer blades of the mixer elements connected to a single fastening point is substantially four times as large as the total area of the mixer blades connected to a single fastening point at the third, fourth, sixth and eighth fastening points.
  • the position of the mixer blades attached to the mixing shafts of the mixing axes is such that the mixer blades of the mixing shafts attached to the first two fastening points of the first end of the first mixing axis tend to shift the concrete to be mixed further away from the first end of the first mixing axis.
  • the rest of the mixer blades attached to the first mixing axis by intermediation of mixing shafts tend to shift the concrete to be mixed towards said first end of the first mixer axis.
  • the positions of the mixer blades of the second mixing axis of the mixer are opposite with respect to the first mixing axis.
  • the mixing axis according to the invention is characterized by what is set forth in the characterizing part of claim 1
  • the dual axis mixer according to the invention is characterized by what is set forth in the characterizing part of claim 7.
  • the mixing axes of the dual axis mixer illustrated in the drawings comprise two adjacent mixing axes 1 and 2, positioned horizontally in the mixing tank of the mixer, said mixing axes extending through the end surfaces of the mixing tank of the mixer.
  • part of the mixing shafts 3 are provided, in connection with the first mixer blade 4, also with a second mixer blade 4', said second mixer blade being arranged in a space left in between the first mixer blade and the mixing axis, so that the mixer blades cover substantially the whole length of the mixing shaft.
  • the mixing shafts 3 are attached to nine different fastening points A-I located on the mixing axes 1 and 2, said fastening points being best visible in Figure 1C . From Figure 1C , it is also seen that in the mixing axis 2, the order of the fastening points of the mixing axis 1 is reversed. At some of the fastening points, in addition to a first mixing shaft 3, there also is attached a second mixing shaft 3' to extend from the mixing axes 1 and 2 to the opposite direction with respect to the first mixing shaft.
  • each of said mixing shafts being provided with two mixer blades 4, 4'.
  • the mixer elements and particularly the mixer blades 4, 4' attached to said fastening points A and B, said fastening points being located in the vicinity of the edge of the mixing tank of the mixer, are positioned so that as the mixing axes rotate, said mixer blades shift the concrete to be mixed substantially away from the edge of the mixing tank.
  • each of the fastening points C and D of the mixing axes 1 and 2 there is attached only one mixing shaft 3, said mixing shaft being at the outer end provided with one mixer blade 4.
  • the mixer blades of the mixer elements located at the fastening points C-I are all positioned so that as the mixing axes rotate, they shift the concrete mix to a substantially opposite direction with respect to the mixer blades of the mixer elements of the fastening points A and B.
  • the mixer elements of the mixing axes 1 and 2 are arranged in a mutually reversed order, they also rotate in mutually opposite directions.
  • the mixing axis of the rotary axis 1 rotates clockwise
  • the mixing axis of the rotary axis 2 rotates counterclockwise.
  • the total area of the mixer blades 4, 4' connected to each individual fastening point is four times as large as the total area of the mixer blades connected to each individual fastening point at the fastening points C, D, F and H.
  • the total area of the mixer blades connected to both individual fastening points is twice as large as the total area of the mixer blades connected to each individual fastening point at the fastening points C, D, F or H.
  • the mutual angle of the successive mixing shafts 3 on the cross-sectional plane of the mixing axis is 60 degrees, which is advantageously achieved by using a rod that is hexagonal in cross-section as axes of mixing axes 1, 2.
  • the mutual phase shift between the first mixing axis 1 and the second mixing axis 2 is advantageously 30 degrees.
  • the angle of the mixer blades in relation to the rotary direction, i.e. to the cross-sectional plane of the mixing axes 1, 2 at the mixing shaft 3 is advantageously 35 degrees.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Accessories For Mixers (AREA)
EP11179361.8A 2010-09-09 2011-08-30 Axe de mélangeur pour un mélangeur à arbre double et mélangeur à arbre double Not-in-force EP2428341B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FI20105937A FI122572B (fi) 2010-09-09 2010-09-09 Betonimassan kaksoisakselisekoittimen sekoitusakseli sekä betonimassan kaksoisakselisekoitin

Publications (3)

Publication Number Publication Date
EP2428341A2 true EP2428341A2 (fr) 2012-03-14
EP2428341A3 EP2428341A3 (fr) 2014-04-16
EP2428341B1 EP2428341B1 (fr) 2014-10-01

Family

ID=42829673

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11179361.8A Not-in-force EP2428341B1 (fr) 2010-09-09 2011-08-30 Axe de mélangeur pour un mélangeur à arbre double et mélangeur à arbre double

Country Status (4)

Country Link
EP (1) EP2428341B1 (fr)
CN (1) CN102416668B (fr)
ES (1) ES2518090T3 (fr)
FI (1) FI122572B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104589502A (zh) * 2015-01-23 2015-05-06 长安大学 一种具有对置式内外搅拌单元的双卧轴连续式搅拌装置
CN118360939A (zh) * 2024-06-19 2024-07-19 四川坤德智联科技有限公司 一种搅拌连续墙施工用多轴多层互剪搅拌钻具及使用方法

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104608241B (zh) * 2015-01-27 2017-01-25 长安大学 一种双卧轴连续式搅拌机及其搅拌控制方法
US11389775B2 (en) * 2016-04-25 2022-07-19 Young Ho Bok Stirrer comprising two rotating shafts having intersecting stirring blades capable of rotating symmetrically and rotating in identical direction and stirring method
CN106079091B (zh) * 2016-08-18 2019-02-05 许昌德通振动搅拌技术有限公司 双卧轴交叉递推的连续式振动搅拌装置
CN108221559B (zh) * 2017-12-28 2020-08-25 警通建设（集团）有限公司 一种沥青拌合楼
CN112023815B (zh) * 2020-08-21 2022-06-07 湖南中联重科混凝土机械站类设备有限公司 一种搅拌装置及搅拌机

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IT1101606B (it) * 1978-09-21 1985-10-07 Risco Brevetti Impastatrice per carne e prodotti alimentari in genere
AU2000241379A1 (en) * 2000-05-05 2001-11-20 Ammann Aufbereitung Ag Two-shaft compulsory mixer, use of the two-shaft compulsory mixer and method foroperating a two-shaft compulsory mixer
CN101323149A (zh) * 2007-06-14 2008-12-17 福建南方路面机械有限公司 具有可调整的搅拌单元的强制式搅拌机
CN201239995Y (zh) * 2008-07-29 2009-05-20 韶关市天源重机有限公司 节能型双卧轴强制式混凝土搅拌机
CN201505984U (zh) * 2009-10-09 2010-06-16 邵克文 连续式双卧轴混凝土搅拌机
CN201552667U (zh) * 2009-10-21 2010-08-18 长沙中联重工科技发展股份有限公司 双卧轴单螺带混凝土搅拌机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104589502A (zh) * 2015-01-23 2015-05-06 长安大学 一种具有对置式内外搅拌单元的双卧轴连续式搅拌装置
CN118360939A (zh) * 2024-06-19 2024-07-19 四川坤德智联科技有限公司 一种搅拌连续墙施工用多轴多层互剪搅拌钻具及使用方法

Also Published As

Publication number Publication date
FI122572B (fi) 2012-03-30
FI20105937A0 (fi) 2010-09-09
CN102416668A (zh) 2012-04-18
EP2428341A3 (fr) 2014-04-16
CN102416668B (zh) 2014-06-11
ES2518090T3 (es) 2014-11-04
EP2428341B1 (fr) 2014-10-01

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