WO2013091420A1 - Dispositif d'agitation de mélange d'asphalte et appareil de prémélange d'agrégats - Google Patents

Dispositif d'agitation de mélange d'asphalte et appareil de prémélange d'agrégats Download PDF

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Publication number
WO2013091420A1
WO2013091420A1 PCT/CN2012/082086 CN2012082086W WO2013091420A1 WO 2013091420 A1 WO2013091420 A1 WO 2013091420A1 CN 2012082086 W CN2012082086 W CN 2012082086W WO 2013091420 A1 WO2013091420 A1 WO 2013091420A1
Authority
WO
WIPO (PCT)
Prior art keywords
aggregate
inner cavity
cavity region
discharge port
rotating shaft
Prior art date
Application number
PCT/CN2012/082086
Other languages
English (en)
Chinese (zh)
Inventor
尹友中
Original Assignee
中联重科股份有限公司
湖南中联重科专用车有限责任公司
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 中联重科股份有限公司, 湖南中联重科专用车有限责任公司 filed Critical 中联重科股份有限公司
Publication of WO2013091420A1 publication Critical patent/WO2013091420A1/fr

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/60—Mixing solids with solids
    • 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
    • B01F27/21—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
    • 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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F2101/00—Mixing characterised by the nature of the mixed materials or by the application field
    • B01F2101/38—Mixing of asphalt, bitumen, tar or pitch or their ingredients

Definitions

  • the present invention relates to a mixing device, and more particularly to an aggregate mixing device. Background technique
  • the various aggregates (also called aggregates) required for asphalt mixing equipment are often mixed in proportion by a variety of sandstones of different particle sizes. Therefore, each material must be strictly measured, but the sand Stones have a stacking angle. In actual metering, each material is stacked relatively independently in the metering chamber, and the material is also self-flowing when discharging. In this way, the various materials are relatively concentrated when they are placed on the agitator.
  • the mixer in order to improve the uniformity of the mixture, the mixer has to set a dry mixing time (ie, stirring before the asphalt is placed), and when the mixture type and aggregate particle size gradation are different, the dry mixing time Appropriate extension. Dry mixing time affects the mixing cycle and equipment production efficiency, and the wear of the agitator contact surface is particularly severe during dry mixing, and the service life of the equipment is shortened. Summary of the invention
  • the present invention is directed to an improved asphalt mixture agitation apparatus and aggregate premixing apparatus.
  • the present invention adopts the following technical solutions:
  • An aggregate premixing device comprising: a housing and an agitation unit disposed in the housing; the housing includes an inner chamber and an inlet and a discharge port communicating with the inner chamber, the inner chamber including the first An inner cavity region and a second inner cavity region; the agitation unit includes a rotating shaft laterally and rotatably disposed in the housing, a first blade unit disposed on the first shaft segment of the rotating shaft, and disposed on the a second vane unit on the second shaft section of the rotating shaft; the first vane unit and the second vane unit are rotatable with the rotating shaft, and respectively respectively with the first inner cavity area and the second inner cavity area of the housing Corresponding; during operation, when the first vane unit and the second vane unit rotate with the rotating shaft, the first vane unit drives a part of the aggregate in the first inner cavity region to the The second inner cavity region, the second vane unit agitates the aggregate of the second inner cavity region.
  • the first inner cavity region correspondingly receives the aggregate having the first average particle diameter
  • the second inner cavity region correspondingly receives the aggregate having the second average particle diameter, the first average particle diameter and the The second average particle size is unequal.
  • the discharge opening has a stepped or variable cross-sectional shape matching the distribution of the aggregate in the casing.
  • the discharge opening of the housing includes a first discharge opening area and a second discharge opening area corresponding to the first inner cavity area and the second inner cavity area, respectively, the first discharging The width of the mouth region and the second discharge port region are not equal.
  • the aggregate premixing device further includes a third blade unit mounted on the third shaft segment of the rotating shaft and rotatable along the rotating shaft, wherein the third shaft segment and the first shaft segment respectively Located on both sides of the second shaft segment, the inner cavity includes a third inner cavity region corresponding to the third blade unit; during operation, when the third blade unit rotates with the rotating shaft, The third vane unit drives a portion of the aggregate in the third lumen region into the second lumen region.
  • the first inner cavity region correspondingly receives the aggregate having the first average particle diameter
  • the second inner cavity region correspondingly receives the aggregate having the second average particle diameter
  • the third inner cavity region corresponds to the receiving An aggregate having a third average particle diameter; the first average particle diameter, the second average particle diameter, and the third average particle diameter are sequentially increased or decreased.
  • the discharge opening of the casing has a stepped or variable cross-section that matches the distribution of the aggregate in the casing.
  • the discharge opening of the housing includes a first discharge opening area and a second discharge opening area corresponding to the first inner cavity area, the second inner cavity area and the third inner cavity area, respectively.
  • a third discharge port area wherein the width of the second discharge opening area is the largest, the width of the first discharge opening area and the width of the third discharge opening area, and the first inner cavity area and the third The size of the average particle size of the aggregate in the inner cavity region is uniform.
  • the first blade unit includes a plurality of first spiral blades spaced apart on the first shaft segment of the rotating shaft; the third blade unit includes a plurality of spaced apart distributions on the third axial segment of the rotating shaft. a second spiral blade, wherein the first spiral blade is opposite to a spiral direction of the second spiral blade; and the second blade unit includes a plurality of agitating blades spaced apart from the second shaft segment of the rotating shaft.
  • An asphalt mixture agitation apparatus comprising the aggregate premixing apparatus of any of the above.
  • the asphalt mixture stirring device comprises a mixer and an aggregate scale disposed above the mixer, the aggregate premixing device is disposed between the aggregate and the mixer for collecting Premixing is carried out during the process of entering the agitator by the aggregate.
  • the discharge opening of the aggregate and the discharge port of the aggregate premixing device have a longitudinal direction parallel to the axial direction of the agitator.
  • an asphalt mixture stirring apparatus comprising a mixer and an aggregate scale disposed above the mixer, characterized by further comprising an aggregate premixing device, wherein the aggregate premixing device is disposed on the aggregate scale Between the mixers, premixing is performed during the process of collecting the aggregate from the aggregate into the agitator.
  • the discharge opening of the aggregate and the discharge port of the aggregate premixing device have a longitudinal direction parallel to the axial direction of the agitator.
  • the aggregate can be obtained before entering the mixer.
  • Good mixing can eliminate or reduce the dry mixing time of the mixer and improve the production efficiency of the asphalt mixing equipment.
  • FIG. 1 is a schematic view showing the structure of an asphalt mixture stirring apparatus in some embodiments of the present invention.
  • Figure 2 is a schematic view showing the structure of the aggregate premixing device shown in Figure 1.
  • Fig. 3 is a cross-sectional structural view showing the H-H direction in the asphalt mixture stirring apparatus shown in Fig. 1.
  • Figure 4 is a schematic view showing the structure of the casing of the aggregate premixing device shown in Figure 3 in the K direction. detailed description
  • an asphalt mixture agitation apparatus 1 in some embodiments of the invention, which may include a collection bin 10, an aggregate scale 20 disposed below the collection bin 10, and an aggregate pre-set disposed below the aggregate scale 20.
  • the collection bin 10 is used to store a plurality of aggregates of different particle sizes required for the asphalt mixture mixing device 1, which in some embodiments may include six sub-bins A ⁇ F, aggregates stored in sub-bins A ⁇ F
  • the particle size increases sequentially from left to right.
  • the aggregate scale 20 is used for metering aggregates from the collection bin 10. In the metering process, due to the accumulation angle of the aggregates, the aggregates of each particle size are relatively independently stacked in the aggregate scale 20 (as shown in the figure). 1 is shown by the dashed line in the intermediate scale 20, so that when the aggregate scale 20 is metered and discharged (especially using self-flow discharge), the aggregates of various particle sizes are still relatively concentrated.
  • the aggregate premixing device 30 is used for premixing the metered aggregates into the mixer 40 so that the aggregates of the various particle sizes are relatively evenly distributed, and the aggregate premixing device 30 does not take up additional stirring time. Further, the dry mixing time of the agitator 10 can be eliminated or reduced, the production efficiency of the asphalt mixture mixing device 1 can be improved, and the wear of the agitator 10 can be reduced. Agitator 40 is used to mix the mixed aggregate with the asphalt.
  • the aggregate premixing device 30 may, in some embodiments, include a housing 31, an agitation unit 32 disposed within the housing 31, and a drive unit 33 for driving the operation of the agitation unit 32.
  • the housing 31 may have a long groove shape in some embodiments, and the cross section of the housing 31 may be U-shaped.
  • the length of the housing 31 is slightly larger than the length of the discharge opening 21 of the aggregate scale 20, and the width is slightly larger than the discharge opening.
  • the housing 31 includes an inner chamber 310 and a feed port 312 and a discharge port 314 that communicate with the inner chamber 310.
  • the inner cavity 310 of the housing 31 can be divided into first to third inner cavity regions in the horizontal direction (three regions separated by two vertical broken lines M and N in FIG.
  • the first inner cavity region mainly receives the aggregates from the sub-bins A and B
  • the second inner cavity region mainly receives the aggregates from the sub-bins C and D
  • the third inner cavity region is mainly used for Receive aggregates from sub-bins E and F. Since the particle size of the aggregate in the sub-tanks A to F is gradually increased, the average particle diameter of the aggregate received in the first to third inner cavity regions of the inner cavity 310 of the casing 31 is also gradually increased. It can be understood that, when the particle size of the aggregates in the sub-bins A to F is decreasing, the average particle diameter of the aggregates in the first to third inner cavity regions of the inner chamber 310 is also decreasing.
  • the agitating unit 32 may include, in some embodiments, a rotating shaft 320 coupled to the driving unit 33, a first vane unit 321 mounted on the first shaft section of the rotating shaft 320, and a second vane unit mounted on the second shaft section of the rotating shaft 320. 322 and the third blade unit 323 mounted on the third shaft section of the rotating shaft 320, the first blade unit 321, the second blade unit 322, and the third blade unit 323 are all rotatable along with the rotating shaft 320.
  • the rotating shaft 320 is laterally and rotatably mounted in the inner cavity 310 of the housing 3, and the first blade unit 321, the second blade unit 322, and the third blade unit 323 are respectively associated with the first to third inner chambers 310.
  • the cavity area corresponds.
  • Drive unit 33 may be an electric motor in some embodiments.
  • the first blade unit 321 may include a plurality of first spiral blades spaced apart from each other on the first shaft segment of the rotating shaft 320, and the third blade unit 323 includes a plurality of spaced apart third axial segments of the rotating shaft 320.
  • the second spiral blade has a spiral direction opposite to the second spiral blade.
  • the second vane unit 322 includes a plurality of agitating blades spaced apart on the second shaft section of the rotating shaft 320.
  • the rotating shaft 320 drives the first blade unit 321, the second blade unit 321, and the third blade unit 321 to rotate, wherein the first blade unit 321 and the third blade
  • the spiral vanes of the unit 323 respectively drive a portion of the aggregates in the first and third inner cavity regions to the second inner cavity region in a direction parallel to the axis of the rotary shaft 320, and the second vane unit 322 is
  • the aggregates of different particle sizes in the second inner cavity region are uniformly stirred.
  • the remaining portion of the aggregate in the first and third inner cavity regions flows directly downward into the agitator 40, so that the concentration of the aggregate entering the agitator 40 can be effectively reduced.
  • the discharge opening 314 of the housing 31 may be in a stepped or variable cross-section that matches the aggregate distribution in the first to third inner cavity regions in the housing 31 such that the housing 31 is While the aggregates at both ends are self-flowing, a part of them are conveyed to the middle to complete the premixing, and it is ensured that the aggregates of various particle sizes can be relatively uniformly fed into the mixer 10.
  • the discharge port 314 may include, in some embodiments, a first discharge port region 3141, a second discharge port region 3142, and a portion corresponding to the first to third lumen regions of the inner chamber 31, respectively.
  • the first discharge opening area 3141, the second discharge opening area 3142, and the third discharging opening area 3143 may each have a rectangular shape, wherein the width of the first discharging opening area 3141 is the smallest, and the width of the second discharging opening area 3142 is the smallest. Maximum, third discharge area The width of 3143 is somewhere in between.
  • the number of sub-bins of the collection bin 10 is not limited to six, and the particle sizes of the aggregates in the sub-bins A to F are not limited to being arranged in a gradually increasing manner, and the above set is adopted.
  • the material premixing device 30 premixes the aggregate into the mixer 40, and can achieve the purpose of improving uniform mixing of the aggregate.
  • blade unit in the aggregate premixing device 30 is not limited to three, and it may be less than or more than three cases, and the purpose of improving aggregate uniformity can still be achieved.

Abstract

L'invention concerne un appareil de prémélange d'agrégats (30) et un dispositif d'agitation de mélange d'asphalte. L'appareil de prémélange d'agrégats comprend une enveloppe (31) et une unité d'agitation (32) placée dans l'enveloppe (31). L'enveloppe (31) comprend un compartiment interne (310) ainsi qu'un orifice d'alimentation (312) et un orifice d'évacuation (314) qui sont en communication avec le compartiment interne (310). Le compartiment interne (310) comprend une première zone de compartiment interne et une deuxième zone de compartiment interne. L'unité d'agitation (32) comprend un arbre rotatif (320) transversal et disposé de manière à tourner dans l'enveloppe (31), une première unité de lame (321) agencée sur une première section d'arbre de l'arbre rotatif, et une deuxième unité de lame (322) agencée sur une deuxième section d'arbre de l'arbre rotatif. La première unité de lame (321) et la deuxième unité de lame (322) peuvent tourner en suivant l'arbre rotatif et correspondent respectivement à la première zone de compartiment interne et à la deuxième zone de compartiment interne de l'enveloppe (31). Pendant un processus de fonctionnement, lorsque la première unité de lame (321) et la deuxième unité de lame (322) tournent en suivant l'arbre rotatif, la première unité de lame (321) dirige une partie de l'agrégat dans la première zone de compartiment interne vers la deuxième zone de compartiment interne, et la deuxième unité de lame (322) agite l'agrégat dans la deuxième zone de compartiment interne.
PCT/CN2012/082086 2011-12-20 2012-09-26 Dispositif d'agitation de mélange d'asphalte et appareil de prémélange d'agrégats WO2013091420A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN2011104302308A CN102407080B (zh) 2011-12-20 2011-12-20 沥青混合料搅拌设备及集料预混装置
CN201110430230.8 2011-12-20

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Publication Number Publication Date
WO2013091420A1 true WO2013091420A1 (fr) 2013-06-27

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CN (1) CN102407080B (fr)
WO (1) WO2013091420A1 (fr)

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CN113230938A (zh) * 2021-05-11 2021-08-10 沈民 一种环氧粉末涂料混合设备及环氧粉末涂料生产工艺
CN115400678A (zh) * 2022-09-21 2022-11-29 中交三公局第一工程有限公司 一种高抗冻性沥青混凝土的制备装置及方法

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CN102407080B (zh) * 2011-12-20 2013-12-04 中联重科股份有限公司 沥青混合料搅拌设备及集料预混装置
CN103627191B (zh) * 2013-11-18 2016-04-06 同济大学 一种岩沥青改性沥青制备装置及其混合料生产方法
CN105478031A (zh) * 2015-12-25 2016-04-13 江苏远兴环保集团有限公司 一种污泥处置一体化设备
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
DK3520887T3 (da) * 2018-02-05 2020-08-10 Köllemann GmbH Förder- und Verfahrenstechnik Anordning til på hinanden følgende forsyning af additiver i et polymergranulat og anvendelsen af anordningen

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NL9400248A (nl) * 1994-02-18 1995-10-02 Johannes Schippers Werkwijze voor het mengen en/of transporteren en/of verder verwerken van bij elkaar gevoegde stoffen welke bij de gebruiksomstandigheden in het eindprodukt van elkaar verschillende fasetoestanden innemen, alsmede inrichting voor het uitvoeren van die werkwijze.
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CN102407080A (zh) * 2011-12-20 2012-04-11 中联重科股份有限公司 沥青混合料搅拌设备及集料预混装置

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Publication number Priority date Publication date Assignee Title
CN113230938A (zh) * 2021-05-11 2021-08-10 沈民 一种环氧粉末涂料混合设备及环氧粉末涂料生产工艺
CN113230938B (zh) * 2021-05-11 2023-12-26 台山市华丽彩五金装饰新材料有限公司 一种环氧粉末涂料混合设备及环氧粉末涂料生产工艺
CN115400678A (zh) * 2022-09-21 2022-11-29 中交三公局第一工程有限公司 一种高抗冻性沥青混凝土的制备装置及方法
CN115400678B (zh) * 2022-09-21 2023-08-18 中交三公局第一工程有限公司 一种高抗冻性沥青混凝土的制备装置及方法

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