EP2476529A3 - Invention that reduce or eliminate force mixing in production of asphalt pavings and cement concrete - Google Patents

Invention that reduce or eliminate force mixing in production of asphalt pavings and cement concrete Download PDF

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Publication number
EP2476529A3
EP2476529A3 EP11007798.9A EP11007798A EP2476529A3 EP 2476529 A3 EP2476529 A3 EP 2476529A3 EP 11007798 A EP11007798 A EP 11007798A EP 2476529 A3 EP2476529 A3 EP 2476529A3
Authority
EP
European Patent Office
Prior art keywords
particles
production
cement concrete
dust
asphalt
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.)
Withdrawn
Application number
EP11007798.9A
Other languages
German (de)
French (fr)
Other versions
EP2476529A2 (en
Inventor
Karl Gunnar Ohlson
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
Priority claimed from SE1000959A external-priority patent/SE1000959A1/en
Application filed by Individual filed Critical Individual
Publication of EP2476529A2 publication Critical patent/EP2476529A2/en
Publication of EP2476529A3 publication Critical patent/EP2476529A3/en
Withdrawn legal-status Critical Current

Links

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
    • B28C5/003—Methods for mixing
    • 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
    • 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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/82—Pan-type mixers, i.e. mixers in which the stirring elements move along the bottom of a pan-shaped receptacle
    • 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
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/95—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with stirrers having planetary motion, i.e. rotating about their own axis and about a sun axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F29/00—Mixers with rotating receptacles
    • B01F29/60—Mixers with rotating receptacles rotating about a horizontal or inclined axis, e.g. drum mixers
    • 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
    • B01F35/71—Feed mechanisms
    • B01F35/715—Feeding the components in several steps, e.g. successive steps
    • 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
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7173—Feed mechanisms characterised by the means for feeding the components to the mixer using gravity, e.g. from a hopper
    • 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
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/71775—Feed mechanisms characterised by the means for feeding the components to the mixer using helical screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/0404—Proportioning
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
    • B28C7/04—Supplying or proportioning the ingredients
    • B28C7/0454—Volumetric measuring devices, e.g. for consecutively delivering predetermined volumes of ingredients
    • B28C7/0477—Volumetric measuring devices, e.g. for consecutively delivering predetermined volumes of ingredients by using conveyor screws
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/1027—Mixing in a rotary receptacle
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1013—Plant characterised by the mode of operation or the construction of the mixing apparatus; Mixing apparatus
    • E01C19/104—Mixing by means of movable members in a non-rotating mixing enclosure, e.g. stirrers
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/10—Apparatus or plants for premixing or precoating aggregate or fillers with non-hydraulic binders, e.g. with bitumen, with resins, i.e. producing mixtures or coating aggregates otherwise than by penetrating or surface dressing; Apparatus for premixing non-hydraulic mixtures prior to placing or for reconditioning salvaged non-hydraulic compositions
    • E01C19/1059—Controlling the operations; Devices solely for supplying or proportioning the ingredients
    • E01C19/1068—Supplying or proportioning the ingredients
    • E01C19/1072—Supplying or proportioning the ingredients the solid ingredients

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)

Abstract

Interfacial Engineering:"Technology to model, synthesize, charactericze, and understand, and manipulate interfaces including those between surface and bio molecules. The production of materials free from agglomerations/aggregatation, perfectly dispersed and stable in synthesis and application". (Reg Davis. University of Florida. (1999).
The interaction between dust particles and the liquids of mixes in the production of asphalt and cement concrete, develops only when the dust particles are dispersed in the liquid. When force mixing a set mass of dust particles by the paddles of the mixer, an unknown portion of the particles are agglomerated and thus not interacting with the liquid.
The reason for the invention was the requirement of the dispersion of the dust material before the particles are in contact with the liquids. The knowledge, methods and proposed means contributes to the invention. Force mixing of dust material is destructive to all durable properties of the products of asphalt pavings and cement concrete. The result of the invention is shown by the regularity in the results from tests on mix by the "TOD, Test of dispersion method"
The requirement of the technique of the invention for improved dispersion of dust material in the poduction of said products was shown by irrigularities in the results of TOD test on mixes produced by the known methods of mixing.
EP11007798.9A 2010-09-28 2011-09-26 Invention that reduce or eliminate force mixing in production of asphalt pavings and cement concrete Withdrawn EP2476529A3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1000959A SE1000959A1 (en) 2010-03-15 2010-09-28 Invention that reduces or eliminates forced mixing in the production of asphalt pavements and cement concrete

Publications (2)

Publication Number Publication Date
EP2476529A2 EP2476529A2 (en) 2012-07-18
EP2476529A3 true EP2476529A3 (en) 2014-04-16

Family

ID=44674098

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11007798.9A Withdrawn EP2476529A3 (en) 2010-09-28 2011-09-26 Invention that reduce or eliminate force mixing in production of asphalt pavings and cement concrete

Country Status (1)

Country Link
EP (1) EP2476529A3 (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB354981A (en) * 1929-09-21 1931-08-20 Albrecht Reiser Improvements relating to asphalt boilers
FR856517A (en) * 1939-03-03 1940-06-17 J J Neveux Sa Feeder dispenser for asphalt materials for road use
AU464167B2 (en) * 1972-05-25 1975-08-21 Gunnar Ohlson Karl A method for the production of plant-mixed asphalt concrete
FR2417334A1 (en) * 1978-02-17 1979-09-14 Brams Soren Drum for mixing and delivering solid materials - has rotating mantle with carriers enclosing transporting and ejecting worm (NL 21.8.79)
JPS56109713A (en) * 1980-02-02 1981-08-31 Nippon Rotsukuraapipe Kk Hammering and installing device for manufacturing reinforced fiber dispersing discharger and fiber reinforcing hardening substance structure provided with said dispersing discharger
WO1995028262A1 (en) * 1994-04-19 1995-10-26 Gunnar Ohlson Karl Process and plant for the production of tough cement-concrete
EP0756615A1 (en) * 1994-04-19 1997-02-05 Karl Gunnar Ohlson Invention concerning production of asphaltmix
EP1408157A2 (en) * 2002-10-11 2004-04-14 Karl Gunnar Ohlson Method and device for producing asphalt mix

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1683715B (en) 2004-04-14 2013-07-17 卡尔·根纳·奥尔森 Method and device for increasing asphalt road paving material viscosity mixed by intermittent operation device

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB354981A (en) * 1929-09-21 1931-08-20 Albrecht Reiser Improvements relating to asphalt boilers
FR856517A (en) * 1939-03-03 1940-06-17 J J Neveux Sa Feeder dispenser for asphalt materials for road use
AU464167B2 (en) * 1972-05-25 1975-08-21 Gunnar Ohlson Karl A method for the production of plant-mixed asphalt concrete
FR2417334A1 (en) * 1978-02-17 1979-09-14 Brams Soren Drum for mixing and delivering solid materials - has rotating mantle with carriers enclosing transporting and ejecting worm (NL 21.8.79)
JPS56109713A (en) * 1980-02-02 1981-08-31 Nippon Rotsukuraapipe Kk Hammering and installing device for manufacturing reinforced fiber dispersing discharger and fiber reinforcing hardening substance structure provided with said dispersing discharger
WO1995028262A1 (en) * 1994-04-19 1995-10-26 Gunnar Ohlson Karl Process and plant for the production of tough cement-concrete
EP0756615A1 (en) * 1994-04-19 1997-02-05 Karl Gunnar Ohlson Invention concerning production of asphaltmix
EP1408157A2 (en) * 2002-10-11 2004-04-14 Karl Gunnar Ohlson Method and device for producing asphalt mix

Also Published As

Publication number Publication date
EP2476529A2 (en) 2012-07-18

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