CN114905629B - Steel fiber concrete forming device - Google Patents
Steel fiber concrete forming device Download PDFInfo
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- CN114905629B CN114905629B CN202210519811.7A CN202210519811A CN114905629B CN 114905629 B CN114905629 B CN 114905629B CN 202210519811 A CN202210519811 A CN 202210519811A CN 114905629 B CN114905629 B CN 114905629B
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- 239000000835 fiber Substances 0.000 title claims abstract description 191
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 186
- 239000010959 steel Substances 0.000 title claims abstract description 186
- 239000004567 concrete Substances 0.000 title claims abstract description 71
- 230000007246 mechanism Effects 0.000 claims abstract description 92
- 230000007704 transition Effects 0.000 claims abstract description 68
- 238000007599 discharging Methods 0.000 claims abstract 6
- 239000006185 dispersion Substances 0.000 claims description 16
- 238000000465 moulding Methods 0.000 claims description 5
- 239000011210 fiber-reinforced concrete Substances 0.000 claims description 2
- 230000003014 reinforcing effect Effects 0.000 claims 1
- 239000011374 ultra-high-performance concrete Substances 0.000 description 12
- 238000010586 diagram Methods 0.000 description 11
- 230000009471 action Effects 0.000 description 8
- 238000009826 distribution Methods 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 238000004880 explosion Methods 0.000 description 6
- 230000005484 gravity Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009827 uniform distribution Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
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- 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
- B28C5/40—Mixing specially adapted for preparing mixtures containing fibres
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- 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
- B28C5/40—Mixing specially adapted for preparing mixtures containing fibres
- B28C5/404—Pre-treatment of fibres
-
- 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
- B28C7/06—Supplying the solid ingredients, e.g. by means of endless conveyors or jigging conveyors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
Description
技术领域technical field
本发明涉及混凝土制备设备技术领域,具体涉及一种钢纤维混凝土成型装置。The invention relates to the technical field of concrete preparation equipment, in particular to a steel fiber concrete forming device.
背景技术Background technique
这里的陈述仅提供与本发明相关的背景技术,而不必然地构成现有技术。The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art.
超高性能混凝土是一种具有超高力学性能、良好耐久性和韧性的水泥基复合材料。利用超高性能混凝土材料的这些特性来代替传统的混凝土用于路面、桥面铺装和预制桥梁构件等领域,可以提高构件和结构的强度、刚度、抗疲劳性能和抗裂性能。Ultra-high performance concrete is a cement-based composite material with ultra-high mechanical properties, good durability and toughness. Utilizing these characteristics of ultra-high-performance concrete materials to replace traditional concrete for pavement, bridge deck pavement and prefabricated bridge components can improve the strength, stiffness, fatigue resistance and crack resistance of components and structures.
超高性能混凝土的配比中通常包括纤维,钢纤维对超高性能混凝土良好的力学性能和耐久性能的影响显著。钢纤维可以约束超高性能混凝土的变形、阻止纤维附近裂缝的开展,从而提高超高性能混凝土的耐久性。钢纤维的阻裂效果受纤维分布方向和分布均匀性影响。平行于拉应力方向的钢纤维可以最大程度的发挥对变形和裂缝开展的约束和桥接作用。纤维在超高性能混凝土内部的均匀分布可以明显减少受力时的“缺陷”,提高构件或结构整体抗裂性能。同时,在超高性能混凝土中,钢纤维的成本占到了总成本很大一部分,减小钢纤维掺量可以大幅降低材料成本,提高经济性。然而发明人发现,由于超高性能混凝土自身的粘性较大,拌合过程中纤维方向难以控制,且不易均匀分散。所以,但现有搅拌方式存在无法控制纤维分布方向和分布均匀性的问题。The proportion of ultra-high performance concrete usually includes fiber, and steel fiber has a significant impact on the good mechanical properties and durability of ultra-high performance concrete. Steel fibers can restrain the deformation of ultra-high performance concrete and prevent the development of cracks near the fibers, thereby improving the durability of ultra-high performance concrete. The crack resistance effect of steel fibers is affected by the direction and uniformity of fiber distribution. Steel fibers parallel to the direction of tensile stress can maximize the restraint and bridging effect on deformation and crack development. The uniform distribution of fibers in ultra-high-performance concrete can significantly reduce the "defects" under stress, and improve the overall crack resistance of components or structures. At the same time, in ultra-high performance concrete, the cost of steel fibers accounts for a large part of the total cost. Reducing the amount of steel fibers can greatly reduce material costs and improve economy. However, the inventors found that due to the high viscosity of the ultra-high performance concrete itself, it is difficult to control the direction of the fibers during the mixing process, and it is not easy to disperse evenly. Therefore, the existing stirring method has the problem of being unable to control the direction and uniformity of fiber distribution.
例如公开号CN106378857A的专利申请公开了一种钢纤维定向增强超高性能混凝土的成型装置及其使用方法,利用磁场对钢纤维进行定向,但是,钢纤维是由料筒直接加入混凝土中,在混凝土中无法实现均匀分散,进而导致了钢纤维混凝土的质量受到影响。For example, the patent application with the publication number CN106378857A discloses a forming device for steel fiber directional reinforced ultra-high performance concrete and its application method. The steel fiber is oriented by a magnetic field. However, the steel fiber is directly added to the concrete by the barrel, and the concrete Uniform dispersion cannot be achieved in the medium, which in turn leads to the quality of steel fiber reinforced concrete being affected.
发明内容Contents of the invention
本发明的目的是为克服现有技术的不足,提供了一种钢纤维混凝土成型装置,保证了钢纤维在混凝土中的均匀分散和纤维方向,提高了钢纤维混凝土的质量。The object of the present invention is to overcome the deficiencies of the prior art and provide a steel fiber concrete forming device, which ensures the uniform dispersion and fiber direction of steel fibers in concrete and improves the quality of steel fiber concrete.
为实现上述目的,本发明采用如下技术方案To achieve the above object, the present invention adopts the following technical solutions
本发明的实施例提供了一种钢纤维混凝土成型装置,包括:Embodiments of the present invention provide a steel fiber concrete forming device, comprising:
钢纤维进料仓;Steel fiber feed bin;
分散机构,位于钢纤维进料仓下方,为圆锥型结构,其尖端朝向钢纤维进料仓设置且其母线与水平面夹角为钢纤维的自然休止角,圆锥型结构设置有多个落料通道;Dispersion mechanism, located below the steel fiber feeding bin, is a conical structure, its tip is set towards the steel fiber feeding bin, and the angle between its busbar and the horizontal plane is the natural angle of repose of the steel fiber, and the conical structure is equipped with multiple blanking channels ;
过渡仓:设在分散机构下方,内部设有与落料通道连通的过渡通道,还与混凝土进料仓连通,多个过渡通道的出料端沿阵列排布;Transition chamber: located below the dispersing mechanism, there is a transition passage connected with the blanking passage inside, and also connected with the concrete feed chamber, and the discharge ends of multiple transition passages are arranged along the array;
定向混合机构,其进料端与转角仓的出料端连接并设有钢纤维定向部件。Directional mixing mechanism, its feed end is connected with the discharge end of the corner bin and is provided with steel fiber orientation components.
可选的,沿分散机构中心向边缘的方向,落料通道的尺寸逐渐变大。Optionally, along the direction from the center to the edge of the dispersing mechanism, the size of the discharge channel becomes gradually larger.
可选的,分散机构包括圆柱形部和固定在圆柱形部顶面的圆锥形部,相应的,落料通道包括位于圆锥形部内的第一落料部和位于圆柱形部内的第二落料部,第一落料部位圆柱形结构,第二落料部位渐缩结构,其面积较大的端部连接至第一落料部。Optionally, the dispersing mechanism includes a cylindrical part and a conical part fixed on the top surface of the cylindrical part. Correspondingly, the discharge channel includes a first discharge part located in the conical part and a second discharge part located in the cylindrical part. The first blanking part has a cylindrical structure, the second blanking part has a tapered structure, and the end with a larger area is connected to the first blanking part.
可选的,定向混合机构朝下倾斜设置,包括依次连接的钢纤维定向机构和混合机构,钢纤维定向机构设有第一钢纤维定向部件,用于对钢纤维定向,混合机构用于将钢纤维与混凝土进行混合。Optionally, the directional mixing mechanism is arranged obliquely downwards, including a steel fiber directional mechanism and a mixing mechanism connected in sequence. The steel fiber directional mechanism is provided with a first steel fiber directional component for orienting the steel fibers. The mixing mechanism is used for The fibers are mixed with the concrete.
可选的,定向混合机构与水平面的夹角为30°-60°。Optionally, the included angle between the directional mixing mechanism and the horizontal plane is 30°-60°.
可选的,钢纤维定向机构包括第一外筒和位于第一外筒内的第一内筒,第一内筒内设有钢纤维定向通道,钢纤维定向通道的进料端与钢纤维过渡通道的出料端连通,第一内筒进料端与过渡仓的出料端连接,第一内筒和刚纤维定向通道的出料端均与混合机构连接,第一外筒和第一内筒之间的空间设有第一磁场线圈。Optionally, the steel fiber orientation mechanism includes a first outer cylinder and a first inner cylinder located in the first outer cylinder, the first inner cylinder is provided with a steel fiber orientation channel, and the feed end of the steel fiber orientation channel transitions to the steel fiber The discharge end of the channel is connected, the feed end of the first inner cylinder is connected with the discharge end of the transition chamber, the discharge end of the first inner cylinder and the rigid fiber orientation channel are connected with the mixing mechanism, the first outer cylinder and the first inner cylinder The space between the barrels is provided with a first magnetic field coil.
可选的,钢纤维定向通道的截面为正方形,其边长大于钢纤维的长度。Optionally, the cross section of the steel fiber orientation channel is a square, and the side length thereof is longer than the length of the steel fiber.
可选的,混合机构包括第二外筒和第二内筒,第二外筒与第一外筒固定,第二内筒与第一内筒固定,第二外筒和第二内筒之间的空间设置有第二磁场线圈Optionally, the mixing mechanism includes a second outer cylinder and a second inner cylinder, the second outer cylinder is fixed to the first outer cylinder, the second inner cylinder is fixed to the first inner cylinder, and the second outer cylinder and the second inner cylinder are fixed. The space is provided with a second magnetic field coil
可选的,第二外筒和第二内筒之间还设置有振动器。Optionally, a vibrator is further arranged between the second outer cylinder and the second inner cylinder.
可选的,混凝土进料仓的投料口处设置有钢筋网。Optionally, a reinforcement mesh is arranged at the feeding port of the concrete feeding bin.
本发明的有益效果:Beneficial effects of the present invention:
1.本发明的钢纤维混凝土成型装置,具有圆锥型结构的分散机构,能够将钢纤维进料仓落下的钢纤维进行分散,而且圆锥型结构的母线与水平面夹角为钢纤维的自然休止角,能够保证每个落料通道都会有钢纤维落入且厚度大致相同,并分别通过落料通道进入过渡通道,实现钢纤维的均匀分散,由于过渡通道的出料端沿阵列分布,因此能够对钢纤维进行导向,使得钢纤维以阵列的形式与混凝土混合,保证了钢纤维在混凝土中均匀分散,提高了钢纤维混凝土的质量。1. The steel fiber concrete molding device of the present invention has a dispersing mechanism of a conical structure, which can disperse the steel fibers dropped from the steel fiber feed bin, and the angle between the busbar of the conical structure and the horizontal plane is the natural angle of repose of the steel fibers , it can ensure that steel fibers fall into each blanking channel and have roughly the same thickness, and enter the transition channel through the blanking channel respectively to achieve uniform dispersion of steel fibers. Since the discharge end of the transition channel is distributed along the array, it can The steel fiber is guided, so that the steel fiber is mixed with the concrete in the form of an array, which ensures that the steel fiber is evenly dispersed in the concrete and improves the quality of the steel fiber concrete.
2.本发明的钢纤维混凝土成型装置,由于钢纤维优先进入中间的落料通道,因此沿分散机构中心向边缘的方向,落料口的尺寸逐渐变大,以使得钢纤维能够更好的向外围分散,以此来抵消由于落料通道位置不同而产生的分布不均,实现钢纤维在各个落料通道中的近似等量递送,保证了钢纤维分布的均匀性。2. In the steel fiber concrete molding device of the present invention, since the steel fiber enters the middle blanking passage preferentially, the size of the blanking opening gradually increases along the direction from the center of the dispersing mechanism to the edge, so that the steel fiber can better flow toward the edge. Peripheral dispersion is used to offset the uneven distribution caused by the different positions of the blanking channels, to achieve approximately equal delivery of steel fibers in each blanking channel, and to ensure the uniformity of steel fiber distribution.
3.本发明的钢纤维混凝土成型装置,钢纤维定向通道的截面为正方形,采用正方形截面主要是考虑在调节空间三维方向时,在任意一个方向,钢纤维可以在截面上任意位置分布,不仅能够提高钢纤维的均匀性,而且通道的利用率达到最大。3. In the steel fiber concrete molding device of the present invention, the cross section of the steel fiber directional passage is a square, and the square cross section is mainly considered to adjust the three-dimensional direction of the space. In any direction, the steel fibers can be distributed at any position on the cross section, which not only can Improve the uniformity of steel fibers, and maximize the utilization of channels.
4.本发明的钢纤维混凝土成型装置,在混合机构中也设置第二磁场线圈,能够避免钢纤维与混凝土混合后,钢纤维相对于之前调整好的方向发生改变,偏离设定值,进而保证了钢纤维的定向效果。4. In the steel fiber concrete forming device of the present invention, a second magnetic field coil is also arranged in the mixing mechanism, which can avoid that after the steel fiber is mixed with the concrete, the steel fiber will change relative to the previously adjusted direction and deviate from the set value, thereby ensuring Orientation effect of steel fibers.
5.本发明的钢纤维混凝土成型装置,设置有振动器,由于超高性能混凝土无法单靠磁场产生交互的定向效果,因此设置振动器,对钢纤维混凝土进行振动,提高了定向效果。5. The steel fiber concrete molding device of the present invention is provided with a vibrator. Since the ultra-high performance concrete cannot generate an interactive orientation effect solely by a magnetic field, the vibrator is provided to vibrate the steel fiber concrete to improve the orientation effect.
附图说明Description of drawings
构成本申请的一部分的说明书附图用来提供对本申请的进一步理解,本申请的示意性实施例及其说明用于解释本申请,并不构成对本申请的限定。The accompanying drawings constituting a part of the present application are used to provide further understanding of the present application, and the schematic embodiments and descriptions of the present application are used to explain the present application and not to limit the present application.
图1为本发明实施例1整体结构示意图;Fig. 1 is a schematic diagram of the overall structure of Embodiment 1 of the present invention;
图2为本发明实施例1钢纤维进料仓与支撑仓壁、分散机构爆炸示意图;Fig. 2 is the schematic diagram of explosion of the steel fiber feeding bin, the supporting bin wall, and the dispersing mechanism in Embodiment 1 of the present invention;
图3为本发明实施例1分散机构主视图;Fig. 3 is the front view of the dispersing mechanism of Embodiment 1 of the present invention;
图4为本发明实施例1分散机构仰视图;Fig. 4 is the bottom view of the dispersing mechanism of Embodiment 1 of the present invention;
图5为本发明实施例1分散机构爆炸示意图一;Fig. 5 is a schematic diagram 1 of the explosion of the dispersing mechanism in Embodiment 1 of the present invention;
图6为本发明实施例1分散机构爆炸示意图二;Fig. 6 is the explosion schematic diagram II of the dispersing mechanism in Embodiment 1 of the present invention;
图7为本发明实施例1过渡仓结构示意图;Fig. 7 is a schematic structural diagram of the transition chamber in Embodiment 1 of the present invention;
图8为本发明实施例1过渡仓爆炸示意图;Figure 8 is a schematic diagram of the explosion of the transition chamber in Embodiment 1 of the present invention;
图9为本发明实施例1钢纤维定向机构示意图;Fig. 9 is a schematic diagram of the steel fiber orientation mechanism in Embodiment 1 of the present invention;
图10为本发明实施例1钢纤维定向机构爆炸示意图;Figure 10 is a schematic diagram of the explosion of the steel fiber orientation mechanism in Embodiment 1 of the present invention;
图11为圆形截面钢纤维定向通道和正方形截面钢纤维定向通道钢纤维分布对比图;Fig. 11 is a comparison diagram of the distribution of steel fibers in a steel fiber directional channel with a circular cross-section and a steel fiber directional channel with a square cross-section;
图12为本发明实施例1混合机构示意图;Figure 12 is a schematic diagram of the mixing mechanism of Embodiment 1 of the present invention;
图13为本发明实施例1混合机构爆炸示意图;Figure 13 is a schematic diagram of the explosion of the mixing mechanism in Embodiment 1 of the present invention;
其中,1.架体,2.钢纤维进料仓,3.混凝土进料仓,4.分散机构,6.过渡仓,6.行走轮,7.钢纤维定向机构,8.混合机构,9.支撑仓壁,10.电源,11.导向槽;Among them, 1. Frame body, 2. Steel fiber feeding bin, 3. Concrete feeding bin, 4. Dispersion mechanism, 6. Transition bin, 6. Traveling wheel, 7. Steel fiber orientation mechanism, 8. Mixing mechanism, 9 .Support warehouse wall, 10. Power supply, 11. Guide groove;
4-1.圆柱形部,4-2.圆锥形部,4-3.第一落料部,4-4.第二落料部;4-1. Cylindrical part, 4-2. Conical part, 4-3. First blanking part, 4-4. Second blanking part;
5-1.侧部仓壁,5-2.第一进料仓壁,5-3.第二进料仓壁,5-4.敞口端,5-5.过渡通道;5-1. Side silo wall, 5-2. First feed silo wall, 5-3. Second feed silo wall, 5-4. Open end, 5-5. Transition channel;
7-1.第一外筒,7-2.第一内筒,7-3.钢纤维定向通道,7-4.第一磁场线圈;7-1. The first outer cylinder, 7-2. The first inner cylinder, 7-3. The steel fiber directional channel, 7-4. The first magnetic field coil;
8-1.第二外筒,8-2.第二内筒,8-3.第二磁场线圈。8-1. Second outer cylinder, 8-2. Second inner cylinder, 8-3. Second magnetic field coil.
具体实施方式Detailed ways
实施例1Example 1
本实施例提供了一种钢纤维混凝土成型装置,如图1所示,包括架体1,架体1上安装有钢纤维进料仓2、混凝土进料仓3、分散机构4、过渡仓5和定向混合机构,架体1作为其他结构的承载部件,架体的底端设置有行走轮6,方便整个装置的移动。This embodiment provides a steel fiber concrete forming device, as shown in Figure 1, comprising a frame body 1, on which a steel fiber feed bin 2, a concrete feed bin 3, a dispersion mechanism 4, and a transition bin 5 are installed And the directional mixing mechanism, the frame body 1 is used as the load-bearing part of other structures, and the bottom end of the frame body is provided with walking wheels 6, which facilitates the movement of the whole device.
过渡仓5上方连接有分散机构4和混凝土进料仓3,分散机构4的上方设置有钢纤维进料仓2,混凝土进料仓3投入的混凝土进入过渡仓5内部,钢纤维进料仓2内投入钢纤维,并将钢纤维导入分散机构4,分散机构4对投入的钢纤维进行分散,分散后的钢纤维导入过渡仓5内部的过渡通道内,并由过渡通道导入定向混合机构,进入过渡仓5的混凝土由过渡通道外部空间导入定向混合机构,所述定向混合机构包括依次设置的钢纤维定向机构7和混合机构8,钢纤维定向机构7内设置有与过渡通道连通的钢纤维定向通道和定向部件,钢纤维能够在定向部件的作用下,在钢纤维定向通道内完成定向,并有钢纤维定向通道送入混合机构8,钢纤维定向机构由过渡仓送入的混凝土能够进入混合机构8,与进入混合机构8定向的钢纤维混合。A dispersion mechanism 4 and a concrete feed bin 3 are connected above the transition bin 5, and a steel fiber feed bin 2 is arranged above the dispersion mechanism 4, and the concrete input from the concrete feed bin 3 enters the interior of the transition bin 5, and the steel fiber feed bin 2 The steel fibers are put into the interior, and the steel fibers are introduced into the dispersing mechanism 4, and the dispersing mechanism 4 disperses the input steel fibers, and the dispersed steel fibers are introduced into the transition channel inside the transition chamber 5, and then introduced into the directional mixing mechanism through the transition channel, and enter The concrete in the transition chamber 5 is introduced into the directional mixing mechanism from the outer space of the transition passage, and the directional mixing mechanism includes a steel fiber orientation mechanism 7 and a mixing mechanism 8 arranged in sequence, and the steel fiber orientation mechanism 7 is provided with a steel fiber orientation mechanism communicating with the transition passage. Passage and orientation part, the steel fiber can be oriented in the steel fiber orientation passage under the action of the orientation part, and the steel fiber orientation passage is sent to the mixing mechanism 8, and the concrete sent by the steel fiber orientation mechanism from the transition chamber can enter the mixing Mechanism 8, mixes with the steel fibers that enter the mixing mechanism 8 orientation.
具体的,架体1采用多个钢梁制作而成,包括一个矩形的底部框架,底部框架的四个角处安装有行走轮6,底部框架上设置有多个支撑柱,用于支撑钢纤维进料仓2、混凝土进料仓3、过渡仓5、定向混合机构等。Specifically, the frame body 1 is made of a plurality of steel beams, and includes a rectangular bottom frame. Walking wheels 6 are installed at the four corners of the bottom frame, and a plurality of supporting columns are arranged on the bottom frame for supporting the steel fiber Feed bin 2, concrete feed bin 3, transition bin 5, directional mixing mechanism, etc.
如图2所示,所述钢纤维进料仓2包括四个导流板,四个导流板形成倒锥台状的结构,底端作为钢纤维的出料口,采用此种设置,能够将倒入钢纤维进料仓的钢纤维导入分散机构。四个导流板利用四个支撑仓壁9进行支撑,分别为第一仓壁、第二仓壁、第三仓壁及第四仓壁,其中第一仓壁和第二仓壁相对设置,为倒梯形的形状,第三仓壁和第四仓壁设置在第一仓壁和第二仓壁的端部之间。四个导流板的顶端分别与四个支撑仓壁的顶端固定连接。As shown in Figure 2, the steel fiber feeding bin 2 includes four deflectors, the four deflectors form an inverted frustum-shaped structure, and the bottom end is used as the discharge port of the steel fiber. With this arrangement, it is possible to The steel fiber poured into the steel fiber feeding bin is introduced into the dispersing mechanism. The four deflectors are supported by four supporting walls 9, which are respectively the first wall, the second wall, the third wall and the fourth wall, wherein the first wall and the second wall are oppositely arranged. In the shape of an inverted trapezoid, the third warehouse wall and the fourth warehouse wall are arranged between the ends of the first warehouse wall and the second warehouse wall. The tops of the four deflectors are respectively fixedly connected with the tops of the four supporting walls.
如图3-图6所示,分散机构4采用圆锥型结构,位于导流板形成的倒锥形结构的出料口的正下方,且其尖端朝向钢纤维进料仓的出料口设置。As shown in Figures 3-6, the dispersing mechanism 4 adopts a conical structure, located directly below the discharge port of the inverted conical structure formed by the deflector, and its tip is set towards the discharge port of the steel fiber feed bin.
落在分散机构4的钢纤维能够利用圆锥型结构的锥面实现分散。圆锥形结构设置有多个落料通道,落在分散机构的钢纤维能够通过落料通道进入过渡仓。The steel fibers falling on the dispersing mechanism 4 can be dispersed by using the conical surface of the conical structure. The conical structure is provided with multiple blanking channels, and the steel fibers falling on the dispersing mechanism can enter the transition chamber through the blanking channels.
所述分散机构4包括圆柱形部4-1和设置在圆柱形部上表面的圆锥形部4-2,相应的,落料通道包括位于圆锥形部内的第一落料部4-3和位于圆柱形部内的第二落料部4-4。The dispersing mechanism 4 includes a cylindrical part 4-1 and a conical part 4-2 arranged on the upper surface of the cylindrical part. Second drop 4-4 inside the cylindrical part.
第一落料部4-3采用圆柱形结构,其一端延伸至圆锥形部4-2的锥面,另一端延伸至圆锥形部4-2的底面,第二落料部4-4采用渐缩结构,其面积较大的端部连接第一落料部4-3,面积较小的端部延伸至圆柱形部4-1的底面。通过第二落料部4-4,能够将钢纤维进一步进行汇集,方便将钢纤维送出。The first blanking part 4-3 adopts a cylindrical structure, one end extends to the conical surface of the conical part 4-2, and the other end extends to the bottom surface of the conical part 4-2, and the second blanking part 4-4 adopts a gradual The shrinking structure, the end with a larger area is connected to the first blanking part 4-3, and the end with a smaller area extends to the bottom surface of the cylindrical part 4-1. Through the second blanking part 4-4, the steel fibers can be further collected, so that the steel fibers can be sent out conveniently.
圆锥形部4-2的母线与水平面的夹角等于钢纤维的自然休止角,钢纤维的自然休止角可预先根据试验获得。采用此种设置,能够保证每个落料通道都会有钢纤维落入,避免了钢纤维下落堆积时在中部位置堆积,进而保证了每个落料通道处的钢纤维堆积厚度大致相同,进而实现了钢纤维分散的均匀性。The included angle between the generatrix of the conical part 4-2 and the horizontal plane is equal to the natural angle of repose of the steel fibers, which can be obtained in advance according to experiments. With this setting, it can ensure that steel fibers will fall into each blanking channel, avoiding the accumulation of steel fibers in the middle when they fall and accumulate, and then ensuring that the steel fiber accumulation thickness at each blanking channel is roughly the same, thereby realizing The uniformity of steel fiber dispersion is ensured.
本实施例中,落料通道设置多组,多组落料通道沿圆锥形部4-2所在的圆周径向分布,圆锥形部4-2的中心设置有一个落料通道,其他组的落料通道均设置多个,多个落料通道等间隔设置。In this embodiment, multiple groups of blanking channels are provided, and multiple groups of blanking channels are radially distributed along the circumference of the conical portion 4-2. A blanking channel is provided at the center of the conical portion 4-2, and the other groups of blanking channels Multiple material channels are provided, and multiple blanking channels are arranged at equal intervals.
由于圆锥形部4-2中间的落料通道的位置优势,钢纤维优先进入中间的落料通道,这样也会导致钢纤维在不同通道的数量分布不均匀,因此本实施例中,沿圆锥形部中心向边缘的方向,落料通道的直径逐渐变大,以此来抵消由于位置而产生的分布不均,使得钢纤维下落后能够更好的向外围分散,实现钢纤维在各个通道中的等量递送,进一步保证了钢纤维分散的均匀性。Due to the location advantage of the blanking channel in the middle of the conical part 4-2, the steel fiber preferentially enters the blanking channel in the middle, which will also cause the uneven distribution of the number of steel fibers in different channels. Therefore, in this embodiment, along the conical From the center of the center to the edge, the diameter of the blanking channel gradually increases to offset the uneven distribution caused by the position, so that the steel fibers can be better dispersed to the periphery after falling, and the steel fibers can be distributed in each channel. Equal delivery further ensures the uniformity of steel fiber dispersion.
为了防止钢纤维流出装置外部,本实施例中的分散机构设置在四个支撑仓壁围合撑的空间内部,利用四个仓壁放置钢纤维流出至装置外部。In order to prevent the steel fibers from flowing out of the device, the dispersing mechanism in this embodiment is set inside the space surrounded by four supporting walls, and the four walls are used to prevent the steel fibers from flowing out of the device.
钢纤维进料仓2的一侧设置有混凝土进料仓3,用于加入混凝土,本实施例中,混凝土进料仓的投料口处设置有钢筋网,用于防止过大的石块或其他杂物进入混凝土投料仓,导致的后续的过渡仓、定向混合机构的流通通道造成堵塞。One side of the steel fiber feeding bin 2 is provided with a concrete feeding bin 3 for adding concrete. The sundries enter the concrete feeding bin, resulting in blockage of the subsequent transition bin and the circulation channel of the directional mixing mechanism.
所述钢纤维进料仓2、混凝土进料仓均3设置在过渡仓5上方,过渡仓的进料端用于接收钢纤维和混凝土,其出料端连接倾斜朝下设置的定向混合机构,本实施例中,定向混合机构与水平面的夹角为30°-60°,通过过渡仓,将由钢纤维进料仓和混凝土进料仓沿竖向流入的钢纤维和混凝土转化为沿水平面呈设定夹角的流动方向以适配定向混合机构。Both the steel fiber feed bin 2 and the concrete feed bin 3 are arranged above the transition bin 5, the feed end of the transition bin is used to receive steel fibers and concrete, and its discharge end is connected to a directional mixing mechanism arranged obliquely downward. In this embodiment, the included angle between the directional mixing mechanism and the horizontal plane is 30°-60°, through the transition chamber, the steel fiber and concrete flowing vertically from the steel fiber feed bin and the concrete feed bin into Angled flow direction to fit directional mixing mechanism.
具体的,如图7-图8所示,过渡仓包括两个侧部仓壁5-1,两个侧部仓壁之间设置有第一进料仓壁5-2,第二进料仓壁5-3,还具有一个敞口端5-4作为出料端,两个侧部仓壁之间还设有底部仓壁,底部仓壁倾斜朝下设置,以使得混凝土能够在自身重力作用下流出过渡仓5,第一进料仓壁5-2与分散机构4及钢纤维进料仓四个支撑仓壁9的底端固定连接,其设置有与落料通道相匹配的多个钢纤维进料口,第二进料仓壁与混凝土进料仓的底端固定连接,且设置有混凝土进料口,过渡仓的敞口端与定向混合机构的进料端连接。Specifically, as shown in Figures 7-8, the transition bin includes two side bin walls 5-1, a first feed bin wall 5-2 is arranged between the two side bin walls, and a second feed bin wall The wall 5-3 also has an open end 5-4 as the discharge end, and a bottom silo wall is also provided between the two side silo walls, and the bottom silo wall is inclined downward so that the concrete can Outflow transition bin 5, the first feeding bin wall 5-2 is fixedly connected with the bottom end of the dispersing mechanism 4 and the four supporting bin walls 9 of the steel fiber feeding bin, which is provided with a plurality of steel pipes matching the blanking channel. The fiber feeding port, the second feeding bin wall is fixedly connected with the bottom end of the concrete feeding bin, and is provided with a concrete feeding port, and the open end of the transition bin is connected with the feeding end of the directional mixing mechanism.
过渡仓内设置有过渡通道5-5,用于将竖向落下的钢纤维转换为与定向混合机构设置方向相同的流动方向。A transition channel 5-5 is provided in the transition chamber for converting the vertically falling steel fibers into the same flow direction as that of the directional mixing mechanism.
过渡通道5-5采用管道制成,其进料端设在第一进料仓壁的钢纤维进料口,使得过渡通道与分散机构的落料通道相连通。The transition channel 5-5 is made of a pipeline, and its feeding end is arranged at the steel fiber feeding port of the first feed bin wall, so that the transition channel communicates with the blanking channel of the dispersing mechanism.
过渡通道5-5的出料端延伸至过渡仓的敞口端,且多个过渡通道的出料端在过渡仓敞口端所在的平面内沿矩形阵列排布。The discharge end of the transition channel 5-5 extends to the open end of the transition chamber, and the discharge ends of multiple transition channels are arranged in a rectangular array in the plane where the open end of the transition chamber is located.
由于分散机构4的落料通道为多组沿圆周分布的通道,因此多个过渡通道5-5的进料端沿圆周阵列排布,由于多个过渡通道5-5的出料端沿矩形阵列排布,因此过渡通道5-5包括弧线段和直线段,通过弧形端满足过渡通道排布形式的变化,直线段倾斜向下设置,以使得钢纤维能够在自身重力的作用下进行输送。Since the blanking channel of the dispersing mechanism 4 is a plurality of groups of channels distributed along the circumference, the feeding ends of the multiple transition channels 5-5 are arranged in a circular array, and the discharge ends of the multiple transition channels 5-5 are arranged in a rectangular array. Arrangement, so the transition channel 5-5 includes an arc segment and a straight line segment, and the change in the arrangement form of the transition channel is satisfied through the arc end, and the straight line segment is set obliquely downward, so that the steel fiber can be transported under the action of its own gravity .
定向混合机构包括依次设置的钢纤维定向机构7和混合机构8。The directional mixing mechanism includes a steel fiber directional mechanism 7 and a mixing mechanism 8 arranged in sequence.
如图9-图10所示,钢纤维定向机构7与过渡仓5的敞口端连接,包括第一外筒7-1和第一内筒7-2,第一外筒7-1的尺寸与过渡仓2敞口端的尺寸相匹配,本实施例中,第一外筒7-1和第一内筒7-2的进料端固定在过渡仓的敞口端边缘设置的支撑板上,第一内筒7-2内部设置有多个钢纤维定向通道7-3,钢纤维定向通道7-3采用管道制成,其进料端与过渡仓5内的过渡通道5-5连接,过渡通道5-5内的钢纤维能够在自身重力的作用下进入钢纤维定向通道。As shown in Figures 9-10, the steel fiber orientation mechanism 7 is connected to the open end of the transition chamber 5, including a first outer cylinder 7-1 and a first inner cylinder 7-2, the size of the first outer cylinder 7-1 Matching the size of the open end of the transition chamber 2, in this embodiment, the feeding ends of the first outer cylinder 7-1 and the first inner cylinder 7-2 are fixed on the support plate provided on the edge of the open end of the transition chamber, The inside of the first inner cylinder 7-2 is provided with a plurality of steel fiber directional passages 7-3, the steel fiber directional passages 7-3 are made of pipes, and its feed end is connected with the transition passage 5-5 in the transition chamber 5, and the transition The steel fiber in the channel 5-5 can enter the steel fiber orientation channel under the action of its own gravity.
本实施例中,钢纤维定向通道7-3的截面为正方形,其边长略大于钢纤维的长度,采用此种设置,主要是考虑在调节空间三维方向时,在任意一个方向,钢纤维可以在截面上任意位置分布,不仅能够提高钢纤维的均匀性,而且通道的利用率达到最大。In this embodiment, the cross-section of the steel fiber orientation channel 7-3 is a square, and its side length is slightly greater than the length of the steel fiber. This arrangement is mainly to consider that when adjusting the three-dimensional direction of space, in any direction, the steel fiber can Distributing at any position on the cross-section can not only improve the uniformity of steel fibers, but also maximize the utilization of the channels.
如图11所示,若采用圆形截面,则钢纤维只能聚集在截面中心位置,不利于钢纤维均匀分布,同时,截面边缘部分没有钢纤维,降低了截面的利用效率,而采用正方形截面时,钢纤维可以位于截面任意位置,提高了钢纤维的均匀性和截面利用率。As shown in Figure 11, if a circular cross-section is used, the steel fibers can only gather at the center of the cross-section, which is not conducive to the uniform distribution of steel fibers. At the same time, there are no steel fibers at the edge of the cross-section, which reduces the utilization efficiency of the cross-section. When , the steel fiber can be located at any position in the section, which improves the uniformity of the steel fiber and the utilization of the section.
由于钢纤维定向通道7-3的截面为正方形,因此为了实现钢纤维定向通道7-3与过渡通道5-5的连接,过渡通道5-5的出料端截面也为正方形,本实施例中,作为过渡通道5-5的管道截面形状直接由圆形过渡到正方形,在另外一种实施方式中,在过渡通道5-5的末端连接一端截面为正方形的管道以实现与钢纤维定向通道的连接。Since the section of the steel fiber directional channel 7-3 is a square, in order to realize the connection between the steel fiber directional channel 7-3 and the transition channel 5-5, the discharge end section of the transition channel 5-5 is also a square, in this embodiment , as the cross-sectional shape of the transition passage 5-5 directly transitions from a circle to a square, in another embodiment, a pipe with a square cross-section is connected to the end of the transition passage 5-5 to realize the connection with the steel fiber directional passage connect.
第一外筒7-1和第一内筒7-2之间形成一个空腔,空腔内设置有第一磁场线圈7-4,第一磁场线圈7-4作为定向部件,第一磁场线圈7-4与固定在第一外筒外侧面的电源10连接,电源10能够对第一磁场线圈7=4通电,从而产生磁场,在磁场的作用下,对进入钢纤维定向通道7-3的钢纤维进行定向,使得钢纤维转动至预先设定的方向。A cavity is formed between the first outer cylinder 7-1 and the first inner cylinder 7-2, and the first magnetic field coil 7-4 is arranged in the cavity, and the first magnetic field coil 7-4 is used as an orientation component, and the first magnetic field coil 7-4 is connected with the power supply 10 fixed on the outer surface of the first outer cylinder, and the power supply 10 can energize the first magnetic field coil 7=4, thereby generating a magnetic field. The steel fibers are oriented such that the steel fibers turn to a pre-set direction.
如图11-图12所示,所述混合机构8包括第二外筒8-1和第二内筒8-2,第二外筒8-1与第一外筒7-1的出料端面固定,第二内筒8-2与第一内筒7-2的出料端面固定。As shown in Figures 11-12, the mixing mechanism 8 includes a second outer cylinder 8-1 and a second inner cylinder 8-2, and the discharge end surface of the second outer cylinder 8-1 and the first outer cylinder 7-1 Fixed, the second inner cylinder 8-2 is fixed to the discharge end surface of the first inner cylinder 7-2.
钢纤维定向通道7-3的钢纤维和第一内筒7-2内的混凝土能够同时流入第二内筒8-2,在第二内筒8-2内发生混合。The steel fibers in the steel fiber orientation channel 7-3 and the concrete in the first inner cylinder 7-2 can flow into the second inner cylinder 8-2 at the same time, and mixing takes place in the second inner cylinder 8-2.
第二内筒8-2的出料端设置有导流槽11,混合好的钢纤维混凝土由导流槽11流出,进行浇注。The discharge end of the second inner cylinder 8-2 is provided with a diversion groove 11, and the mixed steel fiber concrete flows out from the diversion groove 11 for pouring.
为了防止钢纤维与混凝土混合时,钢纤维之前调整好的方向发生改变,偏离设定值,在第二外筒8-1和第二内筒8-2之间的空间设置有第二磁场线圈8-3,第二磁场线圈8-3与设置在第一外筒7-1外侧面的电源10连接,能够对第二内筒8-2内的钢纤维施加磁场力,防止其方向发生改变。In order to prevent the steel fiber from being adjusted in the direction of the steel fiber when it is mixed with the concrete and deviate from the set value, a second magnetic field coil is provided in the space between the second outer cylinder 8-1 and the second inner cylinder 8-2 8-3, the second magnetic field coil 8-3 is connected to the power supply 10 arranged on the outer surface of the first outer cylinder 7-1, and can apply a magnetic field force to the steel fibers in the second inner cylinder 8-2 to prevent its direction from changing .
由于混凝土粘性较大,尤其是超高性能混凝土,单靠磁场无法产生较好的定向效果,因此,在第二外筒8-1和第二内筒8-2之间的空间设置振动器8-4,振动器8-4安装在第二内筒8-2的外筒面上,对钢纤维混凝土进行振动,提高磁场定向效果。Due to the high viscosity of concrete, especially ultra-high performance concrete, the magnetic field alone cannot produce a good orientation effect, therefore, a vibrator 8 is arranged in the space between the second outer cylinder 8-1 and the second inner cylinder 8-2 -4, the vibrator 8-4 is installed on the surface of the outer cylinder of the second inner cylinder 8-2 to vibrate the steel fiber concrete to improve the magnetic field orientation effect.
本实施例的工作方法为:The working method of this embodiment is:
在钢纤维进料仓2内投入钢纤维,在混凝土进料仓3内投入混凝土,钢纤维在四个导流板的作用下落在分散结构4的圆锥面上分散,分散后的钢纤维由落料通道进入过渡仓5内的过渡通道5-5,混凝土进料仓3投入的混凝土进入过渡仓5过渡通道5-5外的空间。Steel fibers are put into the steel fiber feeding bin 2, and concrete is put into the concrete feeding bin 3. The steel fibers fall on the conical surface of the dispersion structure 4 under the action of the four deflectors to disperse. The feed channel enters the transition channel 5-5 in the transition storehouse 5, and the concrete dropped into the concrete feed storehouse 3 enters the space outside the transition storehouse 5 transition channel 5-5.
钢纤维在自身重力的作用下由过渡通道5-5进入钢纤维定向通道7-3,由于过渡通道5-5的出料端呈阵列分布,因此流出的钢纤维也为阵列排布,能够均匀排布在混凝土内部,过渡仓5的混凝土在自身重力的作用下流入钢纤维定向机构7的第一内筒7-1,且流入钢纤维定向通道外部的空间。The steel fiber enters the steel fiber directional channel 7-3 from the transition channel 5-5 under the action of its own gravity. Since the discharge end of the transition channel 5-5 is distributed in an array, the outflowing steel fibers are also arranged in an array, which can be evenly distributed. Arranged inside the concrete, the concrete in the transition chamber 5 flows into the first inner cylinder 7-1 of the steel fiber orientation mechanism 7 under the action of its own gravity, and flows into the space outside the steel fiber orientation channel.
通电的第一磁场线圈7-4产生磁场力,在磁场力的作用下,钢纤维定向通道7-3内的钢纤维转动至设定方向。The energized first magnetic field coil 7-4 generates a magnetic field force, and under the action of the magnetic field force, the steel fibers in the steel fiber orientation channel 7-3 rotate to a set direction.
钢纤维和混凝土在自身重力的作用下,同时进入混合机构8的第二内筒8-2进行混合,形成钢纤维混凝土,钢纤维混凝土经过导流槽11流出进行浇注。The steel fiber and concrete enter the second inner cylinder 8-2 of the mixing mechanism 8 under the action of their own gravity to mix to form steel fiber concrete, and the steel fiber concrete flows out through the diversion groove 11 for pouring.
由于由钢纤维定向通道流出的钢纤维是沿矩形阵列排布,因此能够均匀分散在混凝土内部,保证了钢纤维混凝土的性能。Since the steel fibers flowing out from the steel fiber directional channels are arranged in a rectangular array, they can be evenly dispersed inside the concrete, ensuring the performance of the steel fiber concrete.
上述虽然结合附图对本发明的具体实施方式进行了描述,但并非对本发明保护范围的限制,所属领域技术人员应该明白,在本发明的技术方案的基础上,本领域技术人员不需要付出创造性劳动即可做出的各种修改或变形仍在本发明的保护范围以内。Although the specific implementation of the present invention has been described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that on the basis of the technical solution of the present invention, those skilled in the art do not need to pay creative work Various modifications or variations that can be made are still within the protection scope of the present invention.
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