Coarse aggregate dispersing device

Abstract

The utility model discloses a kind of coarse aggregate dispersing devices, including rack, rack is installed with primary material conveying belt line, the conveying face of primary material conveying belt line is provided with smoothing brush, smoothing brush is used to contact and disperse coarse aggregate on the conveying face of primary material conveying belt line, brush holder for fixing and supporting smoothing brush is installed on primary material conveying belt line, the end of primary material conveying belt line is provided with dispersing inclined hopper installed on rack, the inlet end of dispersing inclined hopper is correspondingly arranged below the end of primary material conveying belt line, for receiving and guiding coarse aggregate falling from the end of primary material conveying belt line, zigzag channel structure enabling coarse aggregate falling path to change to realize dispersion is provided in the inside of dispersing inclined hopper, the outlet end of dispersing inclined hopper is provided with secondary material conveying belt line, the start of the conveying face of secondary material conveying belt line is correspondingly arranged below the outlet end of dispersing inclined hopper, for receiving and guiding coarse aggregate falling from the outlet end of dispersing inclined hopper.

Description

Technical Field

[0001] This utility model relates to the field of concrete raw material testing technology, specifically to a coarse aggregate dispersion device. Background Technology

[0002] In the fields of civil engineering and building materials, the gradation, content of flaky and elongated particles, and content of irregular particles in coarse aggregates used in concrete are key indicators affecting concrete performance. Accurate testing of these indicators requires that the aggregate sample be fully and uniformly dispersed, ensuring that there is no overlap or adhesion between particles.

[0003] Currently, the dispersion of coarse aggregates largely relies on manual operation, such as spreading them by hand with shovels. This method suffers from low efficiency, high labor intensity, strong subjectivity, and inconsistent dispersion results. The quality of dispersion directly affects the accuracy of subsequent image analysis or sieving tests, and manual dispersion is difficult to meet the high standards and repeatability requirements of testing. Therefore, it is necessary to further consider how to provide a dispersion device that can operate automatically, has high dispersion efficiency, and provides uniform and stable results, suitable for coarse aggregates of different particle sizes. Utility Model Content

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by this utility model is: how to provide a dispersion device that is efficient and can uniformly disperse coarse aggregate particles.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A coarse aggregate dispersion device includes a frame, on which a primary conveyor belt is mounted. A smoothing brush is positioned above the conveying surface of the primary conveyor belt to contact and disperse the coarse aggregate on the conveying surface. A brush holder is mounted on the primary conveyor belt to fix and support the smoothing brush. A dispersion hopper mounted on the frame is located at the end of the primary conveyor belt. The inlet end of the dispersion hopper is positioned below the end of the primary conveyor belt to receive and guide the coarse aggregate falling from the end of the primary conveyor belt. The interior of the dispersion hopper has a tortuous channel structure that can change the falling path of the coarse aggregate to achieve dispersion. A secondary discharge conveyor belt is located at the outlet end of the dispersion hopper. The starting end of the conveying surface of the secondary discharge conveyor belt is positioned below the outlet end of the dispersion hopper to receive and guide the coarse aggregate falling from the outlet end of the dispersion hopper.

[0006] In this invention, after the coarse aggregate is fed onto the conveyor surface of the primary conveyor belt, it passes through a smoothing brush. The brush scrapes and sweeps the accumulated coarse aggregate, achieving the first dispersion. The initially dispersed coarse aggregate is then sent to the end of the primary conveyor belt and falls into the dispersion hopper below. The tortuous channel structure inside the dispersion hopper causes the coarse aggregate to tumble, collide, and slide along these channels under the action of gravity. Its falling path is repeatedly changed, and the clumps in the coarse aggregate are fully broken up, achieving the second dispersion. After the second dispersion, it falls onto the secondary discharge conveyor belt, which smoothly transports the completely dispersed coarse aggregate out, preventing it from re-accumulating.

[0007] As an optimization, the tortuous channel structure includes multiple guiding ramps, with adjacent guiding ramps tilting in opposite directions, forming a multi-level alternating inclined step structure. The inclined guiding ramps force the coarse aggregate to slide along the slope, increasing its movement path, slowing down the overall falling speed, and preventing coarse aggregates of different particle sizes from re-aggregating due to uniform speed. Moreover, each time the coarse aggregate falls onto a guiding ramp, it will disperse due to collision and sliding; the alternating tilt design ensures that the sliding direction of the coarse aggregate on each step is opposite to that of the previous layer. This repeated change of direction greatly enhances the relative movement between particles, allowing the bonded clumps to be fully loosened.

[0008] As an optimization, the first-stage guide ramp is inclined downwards along the conveying direction of the first-stage conveyor belt. This facilitates the reception of the initially spread and dispersed coarse aggregate.

[0009] As an optimization, the device further includes a vibrating feeding mechanism. The inlet of the vibrating feeding mechanism is located below the outlet end of the dispersing hopper, and is used to receive and guide the coarse aggregate falling from the outlet end of the dispersing hopper. The starting end of the conveying surface of the secondary feeding belt is located below the outlet of the vibrating feeding mechanism, and is used to receive and guide the coarse aggregate falling from the outlet of the vibrating feeding mechanism. The vibrating feeding mechanism can further loosen the coarse aggregate through vibration and allow it to fall onto the secondary feeding belt at a uniform rate.

[0010] As an optimization, the brush holder is equipped with a displacement device, which has a displacement component capable of vertical extension and retraction. The smoothing brush is mounted on the displacement component, and the distance between the smoothing brush and the conveying surface of the primary conveyor belt is adjusted by the extension and retraction of the displacement component. This allows for adjustment of the gap between the brush and the belt surface according to the particle size of the coarse aggregate, thus optimizing the dispersion effect.

[0011] As an optimization, a feeding guide device is provided above the primary conveyor belt and in front of the smoothing brush, and is fixedly connected to the frame. The feeding guide device has a feeding channel for feeding material onto the conveying surface of the primary conveyor belt. This facilitates the feeding of coarse aggregate onto the belt surface.

[0012] Compared with the prior art, the present invention has the following advantages: (1) Automatic conveying via belt line replaces tedious manual feeding and decentralized operation, significantly improving work efficiency and reducing labor intensity; (2) The coarse aggregate is first scraped and dispersed by the smoothing brush, then collided and dispersed by the multi-level alternating steps in the inclined hopper, and finally dispersed by the vibrating feeding mechanism. This ensures that the aggregate is thoroughly and evenly dispersed without overlapping, laying a solid foundation for accurate detection. (3) The height of the smoothing brush is adjustable, making it adaptable to aggregates of different particle sizes and batches, and it has strong versatility. Attached Figure Description

[0013] Figure 1 This is a side view of the present invention. Detailed Implementation

[0014] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0015] like Figure 1As shown, the coarse aggregate dispersion device in this specific embodiment includes a frame 1, on which a primary conveyor belt 2 is mounted. A smoothing brush 3 is disposed above the conveying surface of the primary conveyor belt 2. The smoothing brush 3 is used to contact and disperse the coarse aggregate on the conveying surface of the primary conveyor belt 2. A brush holder 4 is mounted on the primary conveyor belt 2 to fix and support the smoothing brush 3. A dispersion inclined hopper 5 is disposed at the end of the primary conveyor belt 2 and mounted on the frame 1. The inlet end of the dispersion inclined hopper 5 is disposed below the end of the primary conveyor belt 2 to receive and guide the coarse aggregate falling from the end of the primary conveyor belt 2. The interior of the dispersion inclined hopper 5 is provided with a tortuous channel structure that can change the falling path of the coarse aggregate to achieve dispersion. A secondary discharge belt 6 is disposed at the outlet end of the dispersion inclined hopper 5. The starting end of the conveying surface of the secondary discharge belt 6 is disposed below the outlet end of the dispersion inclined hopper 5 to receive and guide the coarse aggregate falling from the outlet end of the dispersion inclined hopper 5.

[0016] In this specific embodiment, the tortuous channel structure includes multiple guiding inclined surfaces, and the inclination directions of adjacent guiding inclined surfaces are opposite, together forming a multi-level alternating inclined step structure.

[0017] In this specific embodiment, the first-stage guiding slope is inclined downwards along the conveying direction of the first-stage conveyor belt 2.

[0018] In this specific embodiment, the device further includes a vibrating feeding mechanism 7. The inlet of the vibrating feeding mechanism 7 is located below the outlet end of the dispersing inclined hopper 5, and is used to receive and guide the coarse aggregate falling from the outlet end of the dispersing inclined hopper 5. The starting end of the conveying surface of the secondary feeding belt 6 is located below the outlet of the vibrating feeding mechanism 7, and is used to receive and guide the coarse aggregate falling from the outlet of the vibrating feeding mechanism 7.

[0019] In this specific embodiment, the brush holder 4 is provided with a displacement device, which has a displacement component that can be extended and retracted in the vertical direction. The smoothing brush 3 is installed on the displacement component. By extending and retracting the displacement component, the interval distance between the smoothing brush 3 and the conveying surface of the primary conveying belt 2 can be adjusted.

[0020] In this specific embodiment, a feeding guide device is provided above the primary conveyor belt and in front of the smoothing brush, and is fixedly connected to the frame. The feeding guide device has a feeding channel for feeding material onto the conveying surface of the primary conveyor belt.

[0021] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail can be made without departing from the spirit and scope of this utility model as defined in the appended claims.

Claims

1. A coarse aggregate dispersion device, characterized in that: The system includes a frame, on which a primary conveyor belt is mounted. A smoothing brush is installed above the conveyor surface of the primary conveyor belt to contact and disperse coarse aggregate on the conveyor surface. A brush holder is installed on the primary conveyor belt to fix and support the smoothing brush. At the end of the primary conveyor belt, a dispersing hopper mounted on the frame is installed. The inlet end of the dispersing hopper is located below the end of the primary conveyor belt to receive and guide the coarse aggregate falling from the end of the primary conveyor belt. The interior of the dispersing hopper has a tortuous channel structure that can change the falling path of the coarse aggregate to achieve dispersion. At the outlet end of the dispersing hopper, a secondary discharge conveyor belt is installed. The starting end of the conveyor surface of the secondary discharge conveyor belt is located below the outlet end of the dispersing hopper to receive and guide the coarse aggregate falling from the outlet end of the dispersing hopper.

2. The coarse aggregate dispersion device according to claim 1, characterized in that: The tortuous channel structure includes multiple guide ramps, and adjacent guide ramps have opposite inclination directions, together forming a multi-level alternating inclined step structure.

3. The coarse aggregate dispersion device according to claim 2, characterized in that: The first-stage guide slope is inclined downwards along the conveying direction of the first-stage conveyor belt.

4. The coarse aggregate dispersion device according to claim 1, characterized in that: The device also includes a vibrating feeding mechanism, the inlet of which is located below the outlet of the dispersing inclined hopper, for receiving and guiding the coarse aggregate falling from the outlet of the dispersing inclined hopper. The starting end of the conveying surface of the secondary feeding belt is located below the outlet of the vibrating feeding mechanism, for receiving and guiding the coarse aggregate falling from the outlet of the vibrating feeding mechanism.

5. The coarse aggregate dispersion device according to claim 1, characterized in that: The brush holder is equipped with a displacement device, which has a displacement component that can be extended and retracted in the vertical direction. The smoothing brush is mounted on the displacement component. By extending and retracting the displacement component, the distance between the smoothing brush and the conveying surface of the primary conveyor belt can be adjusted.

6. The coarse aggregate dispersion device according to claim 1, characterized in that: Above the primary conveyor belt and in front of the smoothing brush, there is a feeding guide device that is fixedly connected to the frame. The feeding guide device has a feeding channel for feeding material onto the conveying surface of the primary conveyor belt.

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