Sprayed concrete recovery device

Abstract

The utility model relates to the technical field of tunnel concrete spraying, and particularly discloses a sprayed concrete recycling device which comprises a door frame, and an arc-shaped channel steel sliding rail is installed above the door frame. Guide assemblies are arranged at the left end and the right end of the channel steel sliding rail correspondingly, each guide assembly comprises a plurality of slide carriages, the slide carriages are sequentially connected through a steel wire rope, and the last slide carriage in the slide carriages is connected with the portal through a steel wire rope. A traction motor is installed below the top of the channel steel sliding rail, and the output end of the traction motor is connected with two traction ropes. The two traction ropes penetrate through the top of the channel steel sliding rail, and the bottom of each slide carriage is provided with a transfer structure used for transferring concrete springback objects collected on the slide carriages into a concrete spraying machine in the portal. In the traditional tunnel concrete spraying operation, about 30% of concrete falls to the ground under the action of gravity before arriving at a preset spraying position to form a concrete springback object, when the concrete springback object falls to the ground, waste is caused, the concrete springback object is recycled by the concrete springback object recycling device, and the problem of waste of the concrete springback object is solved.

Description

Technical Field

[0001] This utility model relates to the field of tunnel concrete spraying technology, specifically to a sprayed concrete recycling device. Background Technology

[0002] Shotcrete is a construction method that uses a pressure spray gun to apply and pour fine aggregate concrete. It is commonly used for pouring linings for thin-walled structures such as tunnel linings, walls, and ceilings, as well as for the protective layer of steel structures. The wet-spraying method of shotcrete is widely used in highway, municipal, and building construction.

[0003] In traditional tunnel concrete spraying operations, approximately 30% of the concrete falls to the ground due to gravity before reaching the designated spraying location, forming concrete rebound. Once the concrete rebound has fallen to the ground and exceeded the initial setting time of the concrete, it can no longer be used in the construction of the tunnel lining structure, becoming solid waste. This results in concrete waste, occupies construction site space, pollutes the surrounding environment, and increases subsequent cleanup costs and environmental governance burdens. Utility Model Content

[0004] The purpose of this invention is to provide a shotcrete recycling device to solve the problem of waste of concrete rebound material in the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0006] A shotcrete recycling device includes a gantry with an arc-shaped channel steel rail mounted on top. Guide components are installed at both ends of the channel steel rail, each guide component comprising multiple slides connected sequentially by steel wire ropes. The last slide is connected to the gantry via a steel wire rope. A traction motor is installed below the top of the channel steel rail, with two traction ropes connected to its output. The two traction ropes pass through the top of the channel steel rail and extend along the rail to the left and right sides of its outer surface. The left traction rope connects to the first slide of the left guide component, and the right traction rope connects to the first slide of the right guide component. Pulling the traction ropes causes the slides of both guide components to cover the channel steel rail. A transfer structure is provided at the bottom of each slide to transfer the collected concrete rebound material to the shotcrete machine inside the gantry.

[0007] Furthermore, the transfer structure is a transfer plate; the transfer plate is inclined, with the outward end of the transfer plate higher than the inward end, so that the transfer plate is inclined downward toward the gantry.

[0008] Furthermore, the transmission structure is a belt conveyor.

[0009] Furthermore, the gantry is equipped with a first support plate, and the belt conveyor is mounted on the first support plate; a slider is installed at the bottom of the belt conveyor, and a groove is installed on the upper surface of the first support plate, with the slider connected in the groove, so that the position of the belt conveyor can be adjusted horizontally.

[0010] Furthermore, the multiple slides are connected sequentially by steel wire ropes, specifically: the right side of the first slide is connected to the left side of the second slide by a steel wire rope, the right side of the second slide is connected to the left side of the third slide by a steel wire rope, and so on.

[0011] Furthermore, in the guiding assembly, when the traction rope is pulled, the lower end of the first slide covers the upper end of the second slide, and the lower end of the second slide covers the upper end of the third slide when the slide of the guiding assembly covers the channel steel slide rail.

[0012] Furthermore, in the guide assembly, the slides are connected in sequence by two steel wire ropes, which are respectively set at the left and right ends of the slides.

[0013] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0014] During tunnel concrete spraying operations, the traction motor is turned on, pulling the traction rope. The traction rope causes the slides of two guide components to unfold. After unfolding, multiple slides cover the entire channel steel slide rail. Concrete falling due to gravity during spraying will fall onto the guide components. Since the channel steel slide rail is curved, the unfolded slides also form a near-curved shape. The concrete slides down along the guide slides, sliding from the last slide onto the transfer structure below. The transfer structure transfers the collected concrete to the concrete chamber of the concrete spraying machine in the gantry, completing the recycling and reducing concrete waste. Attached Figure Description

[0015] Figure 1 This is an overall structural diagram of Embodiment 1 of the present utility model.

[0016] Figure 2 for Figure 1 Enlarged image A.

[0017] Figure 3 To guide the component to collapse the diagram.

[0018] Figure 4 This is a diagram showing the expansion of the guide components.

[0019] Figure 5 This is an overall structural diagram of Embodiment 2 of the present invention.

[0020] The labels in the diagram are as follows: 1-Gantry, 2-Channel steel slide rail, 3-Traction motor, 31-Traction rope, 4-Guide assembly, 41-Slide, 42-Wire rope, 5-Belt conveyor, 6-First support plate, 7-Second support plate, 8-Transfer plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so as to provide a better understanding of the concept of the present utility model, the technical problem solved, the technical features constituting the technical solution and the technical effects brought about.

[0022] Example 1

[0023] like Figures 1-4 As shown, a shotcrete recycling device includes a gantry 1, with an arc-shaped channel steel slide rail 2 installed above the gantry 1. Guide components 4 are respectively installed at the left and right ends of the channel steel slide rail 2. Each guide component 4 includes multiple slides 41, which are connected sequentially by steel wire ropes 42. The last slide 41 is connected to the gantry 1 via a steel wire rope 42. A traction motor 3 is installed below the top of the channel steel slide rail 2, and two traction ropes 31 are connected to the output end of the traction motor 3. The two traction ropes 31 pass through the top of the channel steel slide rail 2 and extend to the left and right sides of the outer surface of the channel steel slide rail 2, respectively. The left traction rope 31 is connected to the first slide 41 of the left guide component 4, and the right traction rope 31 is connected to the first slide 41 of the right guide component 4. Pulling the traction ropes 31 causes the slides 41 of the two guide components 4 to cover the channel steel slide rail 2. A transfer structure is provided at the bottom of each slide 41 to transfer the collected concrete rebound material to the shotcrete machine in the gantry 1.

[0024] This invention is applied to tunnel concrete spraying operations, primarily addressing the problem of concrete falling to the ground due to gravity during spraying from the tunnel ceiling, resulting in waste. The concrete spraying machine is not part of this invention; current concrete spraying machines typically consist of a concrete silo equipped with a concrete spray gun, along with a traveling structure. The concrete spraying machine is moved into the gantry 1, with the concrete silo positioned at the exit of the transfer structure for collecting concrete rebound. Existing concrete spray guns are usually connected to the concrete silo via a hose; the silo does not need to move, and concrete spraying is completed simply by adjusting the angle of the spray gun. During tunnel concrete spraying operations, the traction motor 3 is turned on, and the traction motor 3 pulls the traction rope 31. The traction rope 31 drives the slides 41 of the two guide components 4 to unfold. After unfolding, multiple slides 41 cover the entire channel steel slide rail 2. During concrete spraying, the concrete that falls due to gravity will fall onto the guide components 4. Since the channel steel slide rail 2 is arc-shaped, the multiple slides 41 after unfolding also form a shape close to an arc surface. The concrete slides down along the guide of the slides 41 and slides from the last slide 41 to the transfer structure below. The transfer structure transfers the collected concrete to the concrete chamber of the spraying machine in the gantry 1, completing the recycling and reducing concrete waste.

[0025] Furthermore, the transmission structure is a belt conveyor 5. The belt conveyor 5 includes a drive motor, a drive roller, a driven roller, and a belt. The drive end of the drive motor is in a fixed state, and the output end of the drive motor is connected to the drive roller. The drive roller and the driven roller are connected by a belt, thereby driving the belt to move forward. The falling concrete falls onto the belt, and the outlet of the belt conveyor 5 is aligned with the concrete spraying chamber of the concrete spraying machine to recover the concrete into the concrete chamber.

[0026] Furthermore, first support plates 6 are respectively installed on both sides of the bottom of the gantry 1, and the conveyor belt is mounted on a second support plate 7, specifically, the drive motor of the conveyor belt is fixedly installed on the second support plate 7; a slider is installed at the bottom of the second support plate 7, and a groove is installed on the upper surface of the first support plate 6. The slider is connected in the groove, so that the position of the belt conveyor 5 can be adjusted horizontally. Adjusting the horizontal position of the belt conveyor 5 not only makes it easier for the belt conveyor 5 to better align with the guide component 4, but also allows the belt conveyor 5 to retract inward when not in use, avoiding collisions caused by the belt conveyor 5 being positioned outward. Under normal conditions, the groove and the slider will not slide relative to each other without external force due to the gravity of the conveyor belt and the friction between the groove and the slider. Furthermore, to avoid relative sliding, multiple bolt holes are evenly spaced on the groove, and a bolt hole is set on the slider. The bolt is inserted into the corresponding bolt hole on the groove and then into the bolt hole on the slider to lock it in place. After removal, it can slide normally.

[0027] Furthermore, the plurality of slides 41 are connected in sequence by steel wire ropes 42, specifically: the right side of the first slide 41 is connected to the left side of the second slide 41 by steel wire ropes 42, the right side of the second slide 41 is connected to the left side of the third slide 41 by steel wire ropes 42, and so on.

[0028] Furthermore, in the guiding assembly 4, when the traction rope 31 is pulled to make the slide plate 41 of the guiding assembly 4 cover the channel steel slide rail 2, the lower end of the first slide plate 41 covers the upper end of the second slide plate 41, and the lower end of the second slide plate 41 covers the upper end of the third slide plate 41. By having the lower end of the previous slide plate 41 cover the lower end of the next slide plate 41, the gap between two adjacent slide plates 41 is not leaked, preventing concrete from falling into the gap.

[0029] Furthermore, in the guide assembly 4, the slides 41 are connected in sequence by two steel wire ropes 42, with the two steel wire ropes 42 respectively located at the left and right ends of the slides 41. Connecting the slides 41 with two steel wire ropes 42 makes the unfolding process of the slides 41 smoother, and prevents the slides 41 from tilting after unfolding.

[0030] Example 2

[0031] like Figures 2-5 As shown, a shotcrete recycling device includes a gantry 1, with an arc-shaped channel steel slide rail 2 installed above the gantry 1. Guide components 4 are respectively installed at the left and right ends of the channel steel slide rail 2. Each guide component 4 includes multiple slides 41, which are connected sequentially by steel wire ropes 42. The last slide 41 is connected to the gantry 1 via a steel wire rope 42. A traction motor 3 is installed below the top of the channel steel slide rail 2, and two traction ropes 31 are connected to the output end of the traction motor 3. The two traction ropes 31 pass through the top of the channel steel slide rail 2 and extend to the left and right sides of the outer surface of the channel steel slide rail 2, respectively. The left traction rope 31 is connected to the first slide 41 of the left guide component 4, and the right traction rope 31 is connected to the first slide 41 of the right guide component 4. Pulling the traction ropes 31 can cover the channel steel slide rail 2 with the slides 41 of the two guide components 4. A transfer structure is provided at the bottom of each slide 41 to transfer the collected concrete rebound material to the shotcrete machine in the gantry 1.

[0032] During tunnel concrete spraying operations, the traction motor 3 is turned on, and the traction motor 3 pulls the traction rope 31. The traction rope 31 drives the slides 41 of the two guide components 4 to unfold. After unfolding, multiple slides 41 cover the entire channel steel slide rail 2. During concrete spraying, the concrete that falls due to gravity will fall onto the guide components 4. Since the channel steel slide rail 2 is arc-shaped, the multiple slides 41 after unfolding also form a shape close to an arc surface. The concrete slides down along the guide of the slides 41 and slides from the last slide 41 to the transfer structure below. The transfer structure transfers the collected concrete to the concrete chamber of the spraying machine in the gantry 1, completing the recycling and reducing concrete waste.

[0033] Furthermore, the transfer structure is a transfer plate 8; the transfer plate 8 is inclined, with its outward end higher than its inward end, causing the transfer plate 8 to tilt downward toward the gantry 1. The transfer plate 8 is used to transfer concrete falling onto it to the concrete silo by gravity.

[0034] Furthermore, the plurality of slides 41 are connected in sequence by steel wire ropes 42, specifically: the right side of the first slide 41 is connected to the left side of the second slide 41 by steel wire ropes 42, the right side of the second slide 41 is connected to the left side of the third slide 41 by steel wire ropes 42, and so on.

[0035] Furthermore, in the guiding assembly 4, when the traction rope 31 is pulled to make the slide plate 41 of the guiding assembly 4 cover the channel steel slide rail 2, the lower end of the first slide plate 41 covers the upper end of the second slide plate 41, and the lower end of the second slide plate 41 covers the upper end of the third slide plate 41. By having the lower end of the previous slide plate 41 cover the lower end of the next slide plate 41, the gap between two adjacent slide plates 41 is not leaked, preventing concrete from falling into the gap.

[0036] Furthermore, in the guide assembly 4, the slides 41 are connected in sequence by two steel wire ropes 42, with the two steel wire ropes 42 respectively located at the left and right ends of the slides 41. Connecting the slides 41 with two steel wire ropes 42 makes the unfolding process of the slides 41 smoother, and prevents the slides 41 from tilting after unfolding.

[0037] The terms "connection" and "fixing" appearing in this utility model description can refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meaning of the above terms in this utility model should be understood according to the specific circumstances.

[0038] In the description of this utility model, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., are used only to indicate the orientation or positional relationship for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A shotcrete recycling device characterized by: The gate frame (1) is provided with an arc-shaped channel steel slide rail (2) above it. The left and right ends of the channel steel slide rail (2) are respectively provided with a guide assembly (4), the guide assembly (4) comprises a plurality of sliding plates (41), the plurality of sliding plates (41) are connected in sequence by steel wires (42), and the last sliding plate (41) in the plurality of sliding plates (41) is connected to the gate frame (1) by a steel wire (42). A traction motor (3) is installed below the top of the channel steel slide rail (2), and the output end of the traction motor (3) is connected with two traction ropes (31); the two traction ropes (31) pass through the top of the channel steel slide rail (2) and extend to the left and right sides of the outer surface of the channel steel slide rail (2) along the channel steel slide rail (2), the left traction rope (31) is connected with the first sliding plate (41) of the left guide assembly (4), and the right traction rope (31) is connected with the first sliding plate (41) of the right guide assembly (4); pulling the traction rope (31) makes the sliding plates (41) of the two guide assemblies (4) cover the channel steel slide rail (2). A transmission structure is arranged at the bottom of each sliding plate (41) for transmitting the rebounding concrete collected on the sliding plate (41) to a concrete spraying machine in the gate frame (1).

2. A shotcrete recycling device according to claim 1, wherein: The transmission structure is a transmission plate (8); the transmission plate (8) is arranged obliquely, the outward end of the transmission plate (8) is higher than the inward end of the transmission plate (8), and the transmission plate (8) is inclined downward toward the gate frame (1).

3. A shotcrete recycling device according to claim 1, wherein: The transmission structure is a belt conveyor (5).

4. A shotcrete recycling device according to claim 3, wherein: The gate frame (1) is provided with a first supporting plate (6), and the belt conveyor (5) is arranged on the first supporting plate (6). The bottom of the belt conveyor (5) is provided with a sliding block, the upper surface of the first supporting plate (6) is provided with a sliding groove, and the sliding block is connected in the sliding groove, so that the position of the belt conveyor (5) can be adjusted horizontally.

5. A shotcrete recycling device according to claim 1, wherein: The plurality of sliding plates (41) are connected in sequence by steel wires (42), specifically, the right side of the first sliding plate (41) is connected to the left side of the second sliding plate (41) by a steel wire (42), the right side of the second sliding plate (41) is connected to the left side of the third sliding plate (41) by a steel wire (42), and so on.

6. A shotcrete recycling device according to claim 1, wherein: In the guide assembly (4), when the sliding plates (41) of the guide assembly (4) cover the channel steel slide rail (2) by pulling the traction rope (31), the lower end of the first sliding plate (41) covers the upper end of the second sliding plate (41), and the lower end of the second sliding plate (41) covers the upper end of the third sliding plate (41).

7. A shotcrete recycling device according to claim 1, wherein: In the guide assembly (4), the sliding plates (41) are connected in sequence by two steel wires (42) between the sliding plates (41), and the two steel wires (42) are arranged at the left and right ends of the sliding plates (41).

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