Uniform dispersing and stirring device for fiber concrete

Abstract

The utility model discloses a fiber concrete uniform dispersing and stirring device which comprises a stirring barrel, a stirring mechanism is arranged in the stirring barrel, the upper end of the stirring barrel is further communicated with a premixing device, the premixing device comprises a material mixing box, a premixing mechanism is arranged in the material mixing box, and a screen for dispersing fibers is arranged in the material mixing box. The mixing box is internally provided with a screen, the bottom of the screen is fixedly provided with an oscillation motor, the inner bottom surface of the mixing drum is fixedly provided with a disc-shaped scattering device, and the inner wall of the mixing drum is fixedly provided with a plurality of arc-shaped guide plates. The disc-shaped scattering device can further scatter the materials to ensure that the fibers are uniformly dispersed in the materials, and the arc-shaped guide plate can guide the fibers near the inner wall of the stirring barrel to the middle, so that the fibers are effectively prevented from being gathered at the edge, and the materials in the stirring barrel are promoted to be fully mixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete mixing device technical field, specifically point to a kind of fibrous concrete uniform dispersion mixing device. BACKGROUND

[0002] Fibrous concrete is a new type of multiphase composite material formed by mixing randomly distributed short fibers in ordinary concrete. These fibers can significantly improve the tensile, bending, impact and fatigue resistance of concrete, and are widely used in construction, road and other engineering fields.

[0003] In the production process of fibrous concrete, the mixing equipment plays a crucial role. However, the traditional fibrous concrete mixing equipment has many defects. During mixing, the fiber filaments are prone to entangle and form clumps due to the characteristics of the fibers themselves and the lack of effective dispersion measures at the beginning of mixing. When the fiber filaments form clumps, it will lead to uneven distribution in the concrete, affecting the overall performance of the fibrous concrete. Moreover, the traditional equipment only simply mixes the fibers and the base material during the mixing process, which cannot fully disperse the fibers uniformly in the base material, resulting in uneven quality of the produced fibrous concrete, which cannot meet the strict requirements of high-quality engineering construction on the performance of fibrous concrete. Therefore, a fibrous concrete mixing device is needed that can effectively solve the problems of fiber clumping and uneven mixing. SUMMARY

[0004] (I) Technical problem

[0005] The present application aims to provide a fibrous concrete uniform dispersion mixing device to solve the problems of fiber filament clumping and uneven mixing in traditional fibrous concrete mixing equipment.

[0006] (II) Technical content

[0007] To solve the above technical problems, the technical solution of the present application is as follows: a fibrous concrete uniform dispersion mixing device, comprising a mixing drum, a stirring mechanism is provided inside the mixing drum, a feeding port is provided at the upper end of the mixing drum and a discharge port is provided at the bottom, a premixing device is also provided at the upper end of the mixing drum, the premixing device comprises a mixing box, a pre-stirring mechanism is provided inside the mixing box, a screen is provided inside the mixing box for dispersing fibers, an oscillation motor is fixedly provided at the bottom of the screen, a base material inlet is provided at the side of the mixing box below the screen, a disc-shaped disperser is fixedly provided at the bottom surface inside the mixing drum, and a plurality of arc-shaped guide plates are fixedly provided on the inner wall of the mixing drum.

[0008] Further, the stirring mechanism comprises a stirring shaft rotatingly provided at the top surface inside the mixing drum, a stirring arm is fixedly provided on the stirring shaft, and a motor is fixedly provided at the upper end of the mixing drum for driving the stirring shaft to rotate.

[0009] Further, the bottom of the mixing box is communicated with the stirring drum, and an electric control gate valve is arranged at the connecting position.

[0010] Further, the disc-shaped disperser is fixedly arranged on the bottom surface of the stirring drum, and a plurality of protrusions and recesses are arranged on the upper surface of the disc-shaped disperser.

[0011] Further, the arc-shaped material guide plate is fixedly arranged on the inner wall of the stirring drum, and the inner wall is inclined to the middle part, and the included angle between the arc-shaped material guide plate and the inner wall of the stirring drum ranges from 15° to 30°.

[0012] (Three) technical effects

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] 1. Effectively prevent fiber from being bunched: by arranging the screen and the oscillation motor in the mixing box, the fibers can be dispersed in the premixing stage, the mutual entanglement and bunching of the fibers are avoided, and the fibers can be premixed with the base material in a more dispersed state in the premixing device, so that a good foundation is laid for subsequent uniform mixing.

[0015] 2. The mixture is more uniform: the disc-shaped disperser and the arc-shaped material guide plate in the stirring drum are matched. The disc-shaped disperser can further disperse the material, ensure that the fibers are uniformly dispersed in the material, the arc-shaped material guide plate can guide the fibers near the inner wall of the stirring drum to the middle part, effectively prevent the fibers from gathering at the edge, promote the material in the stirring drum to be fully mixed, ensure that the fibers are uniformly distributed in the concrete, and improve the performance of the fiber concrete. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is a three-dimensional structure diagram of the utility model discloses a kind of fiber concrete uniform dispersion stirring device Figure 1 .

[0017] Figure 2 is a three-dimensional structure diagram of the utility model discloses a kind of fiber concrete uniform dispersion stirring device Figure 2 .

[0018] Figure 3 is the main view structure diagram of the utility model discloses a kind of fiber concrete uniform dispersion stirring device.

[0019] Figure 4 is the overhead structure diagram of the utility model discloses a kind of fiber concrete uniform dispersion stirring device.

[0020] Figure 5 is the cross-sectional structure diagram of the utility model discloses a kind of fiber concrete uniform dispersion stirring device Figure 1 .

[0021] Figure 6The utility model relates to a cross section structure schematic diagram of a fiber concrete uniform dispersion stirring device Figure 2 .

[0022] Figure 7 The utility model relates to a cross section structure schematic diagram of a fiber concrete uniform dispersion stirring device Figure 3 .

[0023] As shown in the figure: 1, stirring drum, 2, feed inlet, 3, discharge port, 4, mix box, 5, screen, 6, oscillation motor, 7, disc-shaped scatterer, 8, arc material guide plate, 9, stirring shaft, 10, stirring arm, 11, motor, 12, electric control gate valve, 13, disc body, 14, protrusion, 15, recess, 16, motor two, 17, stirring shaft two, 18, stirring arm two, 19, base material inlet. DETAILED DESCRIPTION

[0024] In the description of the utility model, need understanding, the orientation or position relation that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "center" indicate is based on the orientation or position relation shown in the drawing, only for the convenience of describing the utility model and simplifying the description, and not indicate or imply the device or element that is indicated must have the orientation configuration and operation of a particular, therefore can not be understood as the limitation of the utility model.

[0025] In the description of the utility model, it is still need to explain that, unless another explicit provision and limitation, the terms "have", "install", "connect", "connection" should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integral type connection, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements inside.For the ordinary skilled person in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances.

[0026] The utility model will be further described in detail below in connection with the drawings.

[0027] In connection with the drawings Figure 1 to the drawings Figure 7A kind of fibrous concrete uniform dispersion mixing device, including stirring drum 1, stirring mechanism is provided in stirring drum 1, the upper end of stirring drum 1 is equipped with feed inlet 2 and bottom is equipped with discharge port 3, the upper end of stirring drum 1 is further equipped with pre-mixing device, the pre-mixing device includes mixing box 4, the bottom of mixing box 4 is communicated with stirring drum 1 and the junction is equipped with electric control gate valve 12, pre-stirring mechanism is provided in mixing box 4, screen 5 for dispersing fiber is provided in mixing box 4, screen 5 bottom is fixedly provided with oscillation motor 6, mixing box 4 side and below screen 5 are equipped with base material inlet 19, the bottom surface of stirring drum 1 is fixedly provided with disc-shaped disperser 7, the disc-shaped disperser 7 includes disc body 13 fixedly provided on the bottom surface of stirring drum 1, the upper end surface of disc body 13 is equipped with a plurality of interval distribution protrusions 14 and recesses 15, the inner wall of stirring drum 1 is fixedly provided with a plurality of arc-shaped guide plates 8, the arc-shaped guide plates 8 are fixedly provided on the inner wall of stirring drum 1 and have inner wall towards middle part inclined arrangement, the included angle between arc-shaped guide plate 8 and the inner wall of stirring drum 1 is 15 °-30 °.

[0028] In the embodiment, as a preferred technical solution, the stirring mechanism includes a stirring shaft 9 rotatably arranged on the top surface of the stirring drum 1, and a stirring arm 10 fixedly arranged on the stirring shaft 9. The stirring mechanism further includes a motor 11 fixedly arranged on the upper end of the stirring drum 1 for driving the stirring shaft 9 to rotate.

[0029] In the embodiment, as a preferred technical solution, the pre-stirring mechanism includes a motor 16 fixedly arranged on the side of the mixing box 4, a stirring shaft 17 fixedly arranged on one end of the drive shaft of the motor 16 extending into the mixing box 4, and a stirring arm 18 fixedly arranged on the stirring shaft 17.

[0030] The working principle of the fibrous concrete uniform dispersion mixing device is as follows: firstly, in the pre-mixing device, the screen 5 and the oscillation motor 6 are used to disperse the fibers, and the fibers are preliminarily mixed with the base material entering from the base material inlet 19 in the mixing box 4. The oscillation motor 6 drives the screen 5 to vibrate, so that the fibers are not agglomerated and can be uniformly distributed around the base material. Then, the pre-mixed material enters the stirring drum 1 through the electric control gate valve 12. In the stirring drum 1, the disc-shaped disperser 7 further disperses the small fiber agglomerates that may exist, and the protrusions 14 and recesses 15 on the disc body 13 of the disc-shaped disperser 7 break the structure of the fiber agglomerates during the stirring process. At the same time, the arc-shaped guide plates 8 guide the fibers near the inner wall of the stirring drum 1 to the middle part, so that the fibers are fully mixed with other materials during the stirring process and are prevented from gathering at the edge. The stirring mechanism continuously stirs the material to ensure the uniformity of the fibrous concrete.

[0031] The working process of the fibrous concrete uniform dispersion mixing device is as follows:

[0032] 1. Premixing step: the fibers are thrown from above the mixing box 4, the base material is fed into the mixing box 4 from the base material inlet 19, the oscillation motor 6 is started to drive the screen 5 to vibrate, the fibers are dispersed, the dispersed fiber filaments fall into the mixing box one by one through the small holes of the screen, the motor 2 16 is started, the motor 2 16 drives the stirring shaft 2 17 to rotate, the stirring arm 2 18 on the stirring shaft 2 17 starts to preliminarily stir the fibers and the base material, so that the fibers and the base material start to be premixed in the mixing box 4.

[0033] 2. Stirring step: when the premixing is completed, the electric control gate valve 12 is opened, the premixed material enters the stirring drum 1. The concrete material is fed from the feed inlet 2, the motor 11 is started, the motor 11 drives the stirring shaft 9 to rotate, and the stirring arm 10 on the stirring shaft 9 stirs the material entering the stirring drum 1. During the stirring process, the disc-shaped disperser 7 disperses the fiber groups in the material at the bottom of the stirring drum 1, and the arc-shaped guide plate 8 guides the fibers near the inner wall of the stirring drum 1 to the middle part, so that the fibers and the concrete material are fully mixed in the stirring drum 1. After the stirring is completed, the material is discharged from the discharge port 3, and the stirring process of the fiber concrete is completed.

[0034] The above describes the present application and its embodiments, which are not limited, and the embodiments shown in the drawings are only one of the embodiments of the present application, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired by it, without departing from the creative purpose of the present application, without creative design, similar structure and embodiments of the technical scheme can be designed, which should belong to the protection scope of the present application.

Claims

1. A fiber concrete uniform dispersion mixing device, comprising a mixing drum (1), a mixing mechanism is arranged inside the mixing drum (1), an inlet (2) is arranged at the upper end of the mixing drum (1) and a discharge port (3) is arranged at the bottom, characterized in that: The upper end of the stirring barrel (1) is also provided with a premixing device in communication, the premixing device comprises a mixing box (4), the mixing box (4) is internally provided with a pre-stirring mechanism, the mixing box (4) is internally provided with a screen (5) for dispersing fibers, the screen (5) is fixedly provided with a vibrating motor (6) at the bottom, the mixing box (4) is provided with a base material inlet (19) on the side and below the screen (5), the bottom surface of the stirring barrel (1) is fixedly provided with a disc-shaped disperser (7), and the inner wall of the stirring barrel (1) is fixedly provided with a plurality of arc-shaped guide plates (8).

2. The uniform dispersion mixing device for fiber reinforced concrete according to claim 1, wherein: The stirring mechanism comprises a stirring shaft (9) rotatably arranged on the top surface of the stirring barrel (1), and a stirring arm (10) fixedly arranged on the stirring shaft (9), and further comprises a motor (11) fixedly arranged on the upper end of the stirring barrel (1) and used for driving the stirring shaft (9) to rotate.

3. The uniform dispersion mixing device for fiber reinforced concrete according to claim 1, wherein: The bottom of the mixing box (4) is in communication with the stirring barrel (1), and an electric control gate valve (12) is arranged at the connecting position.

4. The uniform dispersion mixing device for fiber reinforced concrete according to claim 1, wherein: The disc-shaped disperser (7) comprises a disc body (13) fixedly arranged on the bottom surface of the stirring barrel (1), and a plurality of protrusions (14) and recesses (15) are arranged on the upper end surface of the disc body (13) in a spaced manner.

5. The uniform dispersion mixing device for fiber reinforced concrete according to claim 1, wherein: The arc-shaped guide plates (8) are fixedly arranged on the inner wall of the stirring barrel (1) and are inclined to the middle part of the inner wall, and the included angle between the arc-shaped guide plates (8) and the inner wall of the stirring barrel (1) ranges from 15° to 30°.

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