Fiber concrete spraying device

Abstract

The utility model discloses a fiber concrete spraying device which comprises a double-cavity small mixing assembly, the double-cavity small mixing assembly comprises a mixing tank, a mixing cavity and a storage cavity are sequentially arranged in the mixing tank from top to bottom, and the bottom of the mixing cavity is communicated with the bottom of the storage cavity and provided with an electronic valve; a dry material conveying pipe and a water conveying pipe are arranged at the upper part of the outer side of the mixing tank in a penetrating manner and are communicated with the mixing cavity; the lower portion of the outer side of the mixing tank is connected with an injection pipe through a conveying pump. According to the utility model, the long-distance conveying of dry materials can be realized by utilizing the dry material conveying pipe, and the materials can be uniformly mixed to form wet concrete by utilizing the mixing tank, so that the wet concrete spraying device has the advantages of long conveying distance of dry spraying and uniform mixing of wet spraying at the same time.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete spraying devices, and more specifically, to a fiber concrete spraying device. Background Technology

[0002] Fiber reinforced concrete spraying equipment is a device used to spray concrete containing fiber-reinforced materials. Fiber reinforced concrete spraying equipment is divided into dry spraying and wet spraying. Dry spraying involves mixing dry cement, sand, and fibers, then conveying the mixture to the nozzle via airflow, where it is mixed with water before being sprayed onto the construction surface. Wet spraying involves thoroughly mixing cement, sand, fibers, and water in a mixer, then conveying the mixture to the nozzle via a concrete pump before spraying it onto the construction surface.

[0003] Existing dry spraying devices are suitable for long-distance material transport, but they generate a lot of construction dust and the material uniformity is difficult to control. Wet spraying devices require relatively high pumping pressure, resulting in relatively limited transport distances and making them unsuitable for construction scenarios such as tunnels.

[0004] In view of the above, this application is hereby submitted. Utility Model Content

[0005] The technical problem this invention aims to solve is that existing dry spraying devices generate a lot of construction dust and make it difficult to control the uniformity of materials when transporting materials over long distances, while wet spraying devices have relatively limited transport distances. The purpose is to provide a fiber concrete spraying device that can achieve long-distance transport of dry materials using a dry material transport pipe and achieve uniform mixing of materials to form wet concrete using a mixing tank. Therefore, it can simultaneously possess the advantages of long transport distance of dry spraying and uniform mixing of wet spraying.

[0006] This utility model is achieved through the following technical solution:

[0007] A fiber-reinforced concrete spraying device includes a dual-chamber small mixing assembly, the dual-chamber small mixing assembly including a mixing tank, wherein a mixing chamber and a storage chamber are arranged sequentially from top to bottom in the mixing tank, the bottom of the mixing chamber is connected to the bottom of the storage chamber and is provided with an electronic valve;

[0008] A dry material conveying pipe and a water conveying pipe are installed on the upper outer side of the mixing tank, and the dry material conveying pipe and the water conveying pipe are connected to the mixing chamber;

[0009] The lower outer side of the mixing tank is connected to an injection pipe via a delivery pump.

[0010] This invention utilizes a dry material conveying pipe to achieve long-distance conveying of dry materials and a mixing tank to achieve uniform mixing of materials to form wet concrete. Therefore, it can simultaneously possess the advantages of long conveying distance of dry spraying and uniform mixing of wet spraying.

[0011] This utility model of fiber-reinforced concrete spraying device, when used in construction scenarios with long conveying distances such as tunnels, firstly involves setting up a dry mixing tank outside the tunnel, placing dry cement, sand, and fiber into the dry mixing tank for thorough mixing, and then setting up the spraying device inside the tunnel at the construction surface. A feed pump delivers the mixed dry materials along the dry material conveying pipe into the mixing chamber of the mixing tank. At this time, the electronic valve at the bottom of the mixing chamber is closed, and water is simultaneously delivered into the mixing chamber through a water supply pipe. After the materials and water are evenly mixed, the electronic valve is opened, allowing the mixed wet concrete to fall into the storage chamber. Then, the conveying pump is started, allowing the wet concrete to be conveyed along the spraying pipe to the nozzle and sprayed outwards. During the spraying of wet concrete, the electronic valve closes again, and the dry material conveying pipe and water supply pipe deliver the next batch of materials to the mixing chamber. This allows for the simultaneous mixing of subsequent materials while spraying wet concrete.

[0012] The mixing tank of this invention is small in size and can be easily moved with a mobile cart. The mixing tank is divided into a mixing chamber and a storage chamber. After the dry materials and water enter the mixing chamber, they are stirred to ensure that the materials are mixed evenly to form wet concrete. The fully mixed wet concrete falls into the storage chamber. Since the distance between the mixing tank and the nozzle is short, the wet concrete can be transported by a delivery pump and sprayed out from the nozzle. Therefore, this device has the advantages of both dry spraying with its long conveying distance and wet spraying with its uniform mixing. At the same time as the wet concrete is sprayed, the mixing chamber can simultaneously mix the next batch of materials to ensure sufficient supply and avoid interruption of the spraying operation.

[0013] In one specific embodiment, a first stirring shaft is installed inside the mixing chamber, and the upper end of the first stirring shaft passes through the top of the mixing tank and is connected to a stirring assembly. The stirring assembly is used to drive the first stirring shaft to rotate around its own axis.

[0014] In one specific embodiment, the stirring assembly includes a drive motor, which is fixedly connected to the top of the mixing tank via a bracket.

[0015] In this invention, a drive motor drives the first stirring shaft to rotate inside the mixing chamber, thereby stirring and mixing the water and materials inside the mixing chamber, so that the materials are fully and evenly mixed.

[0016] In one specific embodiment, the mixing assembly further includes a second mixing shaft disposed within the storage chamber. By providing a second mixing shaft within the storage chamber, the stored wet concrete can be continuously mixed, maintaining a constant and uniform mixture and preventing the wet concrete from agglomerating and clumping.

[0017] In one specific embodiment, the stirring assembly further includes a first transmission disk and a second transmission disk. The first transmission disk is installed between the lower end of the drive motor and the upper end of the first stirring shaft, and the lower end of the second stirring shaft extends out of the bottom of the mixing tank and is connected to the second transmission disk.

[0018] It also includes a drive shaft located on the outside of the mixing tank, which is rotatably connected to the outer side of the mixing tank, and the axis of the drive shaft is parallel to the axis of the mixing tank;

[0019] A first transmission belt is connected between the upper end of the drive shaft and the first transmission disc;

[0020] A second transmission belt is connected between the lower end of the transmission shaft and the second transmission disc.

[0021] This invention, by setting up a first transmission disc, a first transmission belt, a transmission shaft, a second transmission belt, and a second transmission disc, can achieve synchronous rotation between the first and second stirring shafts. While the first transmission disc rotates, it drives the transmission shaft to rotate through the first transmission belt. The transmission shaft then drives the second transmission disc to rotate through the second transmission belt, causing the second stirring shaft to rotate inside the storage chamber. This allows a single motor to simultaneously mix the concrete in both the mixing chamber and the storage chamber to prevent it from solidifying, thus greatly saving energy.

[0022] In one specific embodiment, the upper end of the first stirring shaft in the mixing chamber is coaxially connected to an annular support frame, and an annular filter screen is embedded inside the support frame. An exhaust port is provided on the top of the mixing tank, directly above the filter screen.

[0023] This invention features an exhaust port at the top of the mixing tank. Since the feed pump uses airflow to transport dry materials inside the dry material conveying pipe, the exhaust port allows the gas entering the mixing chamber to be discharged. At the same time, since the airflow conveying of dry materials generates a large amount of dust, a filter screen can be installed to prevent the dry material dust from leaking out of the mixing tank and affecting the environment.

[0024] In one specific embodiment, a vibration assembly is provided below the support frame and the filter screen. The vibration assembly is fixed to the inner wall of the mixing chamber and is used to drive the filter screen to vibrate, thereby shaking off the material adhering to the filter screen surface and preventing the filter screen from becoming clogged.

[0025] In one specific embodiment, the vibration assembly includes a U-shaped oil box, with a transmission piston rod passing through the top of one end of the U-shaped oil box and at least one vibration piston rod passing through the top of the other end of the U-shaped oil box. The vibration piston rod is driven to perform a lifting piston movement by the up-and-down movement of the transmission piston rod, thereby applying vibration to the filter screen.

[0026] In one specific embodiment, multiple drive blocks are spaced apart along the circumferential direction on the bottom surface of the support frame, the transmission piston rod is located directly below the drive blocks, and the vibration piston rod is located directly below the filter screen.

[0027] As the support frame rotates with the first stirring shaft, the multiple drive blocks press the upper end of the transmission piston rod at intervals, driving the transmission piston rod to reciprocate up and down.

[0028] In one specific embodiment, the bottom of the drive block has an arc-shaped structure.

[0029] In this invention, the first stirring shaft rotates while simultaneously driving the support frame and filter screen to rotate. The drive block at the bottom edge of the support frame rotates in a circular motion. During this circular motion, the drive block continuously presses the transmission piston rod. As the transmission piston rod rises and falls due to the pressing, it drives the oil inside the U-shaped oil box, causing the vibrating piston rod to perform a rising and falling piston motion. This vibrating piston rod vibrates the filter screen, thereby shaking off the material adhering to the filter screen surface and preventing the filter screen from becoming clogged.

[0030] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0031] 1. The fiber concrete spraying device provided in this utility model embodiment can realize long-distance transportation of dry materials by using a dry material conveying pipe and can realize uniform mixing of materials to form wet concrete by using a mixing tank. Therefore, it can simultaneously have the advantages of long conveying distance of dry spraying and uniform mixing of wet spraying.

[0032] 2. The fiber concrete spraying device provided in this embodiment of the utility model can simultaneously mix the next batch of materials in the mixing chamber while spraying wet concrete, ensuring sufficient material supply and avoiding interruptions in the spraying operation.

[0033] 3. The fiber concrete spraying device provided in this utility model embodiment has an exhaust port at the top of the mixing tank. Since the feed pump uses airflow to transport dry materials inside the dry material conveying pipe, the gas entering the mixing chamber can be discharged through the exhaust port. At the same time, since the airflow conveying of dry materials will generate a lot of dust, the filter screen can be set to prevent the dry material dust from leaking out of the mixing tank and affecting the environment.

[0034] 4. The fiber concrete spraying device provided in this embodiment of the utility model applies vibration to the filter screen by setting a vibration component, thereby shaking off the material adhering to the filter screen surface due to filtration, thus preventing the filter screen from becoming clogged. Attached Figure Description

[0035] To more clearly illustrate the technical solutions of the exemplary embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 A schematic diagram of the overall appearance structure of the fiber concrete spraying device provided in the embodiment of this utility model;

[0037] Figure 2 A schematic diagram of the disassembled mixing tank of the fiber concrete spraying device provided in an embodiment of this utility model;

[0038] Figure 3 A schematic diagram of the drive shaft structure of the fiber concrete spraying device provided in this embodiment of the utility model;

[0039] Figure 4 A schematic diagram of the first mixing shaft structure of the fiber concrete spraying device provided in an embodiment of this utility model;

[0040] Figure 5 A schematic diagram of the bottom structure of the support frame of the fiber concrete spraying device provided in this embodiment of the utility model.

[0041] The attached diagram shows the markings and corresponding component names:

[0042] 1-Dual-chamber small mixing component, 101-Mixing tank, 102-Mixing chamber, 103-Storage chamber, 104-Electronic valve, 105-Dry material conveying pipe, 106-Water pipe, 107-Transfer pump, 108-Injection pipe, 2-First stirring shaft, 3-Support frame, 4-Filter screen, 5-Exhaust port, 6-Stirring component, 601-First transmission disc, 602-Drive motor, 603-First transmission belt, 604-Drive shaft, 605-Second transmission belt, 606-Second transmission disc, 607-Second stirring shaft, 7-Vibration component, 701-U-shaped oil box, 702-Transmission piston rod, 703-Vibration piston rod, 8-Drive block. Detailed Implementation

[0043] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings. The illustrative embodiments and descriptions of this utility model are only used to explain this utility model and are not intended to limit this utility model.

[0044] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, it will be apparent to those skilled in the art that these specific details are not necessary to implement the present invention. In other embodiments, well-known structures are not specifically described in order to avoid obscuring the present invention.

[0045] Throughout this specification, references to "an embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with that embodiment or example is included in at least one embodiment of the present invention. Therefore, the phrases "an embodiment," "an example," "an example," or "an example" appearing in various places throughout the specification do not necessarily refer to the same embodiment or example. Furthermore, specific features, structures, or characteristics can be combined in one or more embodiments or examples in any suitable combination and / or sub-combination. Moreover, those skilled in the art will understand that the illustrations provided herein are for illustrative purposes and are not necessarily drawn to scale. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0046] In the description of this utility model, the terms "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "high", "low", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this utility model.

[0047] Example 1

[0048] like Figures 1-5 As shown in the figure, a fiber concrete spraying device provided by this utility model embodiment includes a dual-cavity small mixing component 1. The dual-cavity small mixing component 1 includes a mixing tank 101. The mixing tank 101 is provided with a mixing chamber 102 and a storage chamber 103 arranged sequentially from top to bottom. The bottom of the mixing chamber 102 is connected to the bottom of the storage chamber 103 and is provided with an electronic valve 104.

[0049] A dry material conveying pipe 105 and a water conveying pipe 106 are installed on the upper outer side of the mixing tank 101, and the dry material conveying pipe 105 and the water conveying pipe 106 are connected to the mixing chamber 102.

[0050] The lower outer side of the mixing tank 101 is connected to an injection pipe 108 via a delivery pump 107.

[0051] This invention utilizes a dry material conveying pipe to achieve long-distance conveying of dry materials and a mixing tank to achieve uniform mixing of materials to form wet concrete. Therefore, it can simultaneously possess the advantages of long conveying distance of dry spraying and uniform mixing of wet spraying.

[0052] When this fiber-reinforced concrete spraying device is used in construction scenarios with long conveying distances, such as tunnels, the first step is to install a dry mixing tank outside the tunnel. Dry cement, sand, and fiber are placed in the dry mixing tank and thoroughly mixed. Then, the spraying device is installed inside the tunnel at the surface to be constructed. A feed pump delivers the mixed dry material along the dry material conveying pipe 105 to the mixing chamber 102 inside the mixing tank 101. At this time, the electronic valve 104 at the bottom of the mixing chamber 102 is closed, and water is simultaneously supplied through the water pipe. 106. Water is delivered to the mixing chamber 102. After the material and water are evenly mixed, the electronic valve 104 is opened, allowing the mixed wet concrete to fall into the storage chamber 103. Then, the delivery pump 107 is started, allowing the wet concrete to be transported along the spray pipe 108 to the nozzle and sprayed outwards. When spraying the wet concrete, the electronic valve 104 is closed again. At this time, the dry material delivery pipe 105 and the water delivery pipe 106 deliver the next batch of material to the mixing chamber 102. Thus, the mixing of subsequent materials can be carried out simultaneously with the spraying of wet concrete.

[0053] The mixing tank of this invention is small in size and can be easily moved with a mobile cart. The mixing tank is divided into a mixing chamber and a storage chamber. After the dry materials and water enter the mixing chamber, they are stirred to ensure that the materials are mixed evenly to form wet concrete. The fully mixed wet concrete falls into the storage chamber. Since the distance between the mixing tank and the nozzle is short, the wet concrete can be transported by a delivery pump and sprayed out from the nozzle. Therefore, this device has the advantages of both dry spraying with its long conveying distance and wet spraying with its uniform mixing. At the same time as the wet concrete is sprayed, the mixing chamber can simultaneously mix the next batch of materials to ensure sufficient supply and avoid interruption of the spraying operation.

[0054] In one specific embodiment, a first stirring shaft 2 is installed inside the mixing chamber 102. The upper end of the first stirring shaft 2 passes through the top of the mixing tank 101 and is connected to the stirring assembly 6. The stirring assembly 6 is used to drive the first stirring shaft 2 to rotate around its own axis.

[0055] In one specific embodiment, the stirring assembly 6 includes a drive motor 602, which is fixedly connected to the top of the mixing tank 101 via a bracket.

[0056] In this invention, the drive motor 602 drives the first stirring shaft 2 to rotate inside the mixing chamber 102, thereby stirring and mixing the water and materials inside the mixing chamber 102, so that the materials are fully and evenly mixed.

[0057] In one specific embodiment, the mixing assembly 6 further includes a second mixing shaft 607, which is disposed within the storage chamber 103. By providing a second mixing shaft within the storage chamber 103, the stored wet concrete can be continuously mixed, maintaining a continuous and uniform mixture and preventing the wet concrete from agglomerating and clumping.

[0058] In a specific embodiment, the stirring assembly 6 further includes a first transmission disk 601 and a second transmission disk 606. The first transmission disk 601 is installed between the lower end of the drive motor 602 and the upper end of the first stirring shaft 2. The lower end of the second stirring shaft 607 extends out of the bottom of the mixing tank 101 and is connected to the second transmission disk 606.

[0059] It also includes a drive shaft 604 disposed on the outside of the mixing tank 101, the drive shaft 604 being rotatably connected to the outer side of the mixing tank 101, and the axis of the drive shaft 604 being parallel to the axis of the mixing tank 101;

[0060] A first transmission belt 603 is connected between the upper end of the drive shaft 604 and the first transmission disc 601;

[0061] A second transmission belt 605 is connected between the lower end of the transmission shaft 604 and the second transmission disc 606.

[0062] This invention, by setting up a first transmission disc 601, a first transmission belt 603, a transmission shaft 604, a second transmission belt 605, and a second transmission disc 606, can achieve synchronous rotation between the first stirring shaft 2 and the second stirring shaft 607. While the first transmission disc 601 rotates, it drives the transmission shaft 604 to rotate through the first transmission belt 603. The transmission shaft 604 then drives the second transmission disc 606 to rotate through the second transmission belt 605, so that the second stirring shaft 607 rotates inside the storage cavity 103. This allows the concrete in both the mixing cavity and the storage cavity to be stirred simultaneously by a single motor to prevent solidification, greatly saving energy.

[0063] In a specific embodiment, the upper end of the first stirring shaft 2 in the mixing chamber 102 is coaxially connected to an annular support frame 3, and an annular filter screen 4 is embedded inside the support frame 3. An exhaust port 5 is provided on the top of the mixing tank 101 directly above the filter screen 4.

[0064] This invention provides an exhaust port at the top of the mixing tank 101. Since the feed pump uses airflow to transport dry materials inside the dry material conveying pipe, the gas entering the mixing chamber can be discharged through the exhaust port 5. At the same time, since the airflow conveying of dry materials generates a large amount of dust, the filter screen 4 can be set to prevent the dry material dust from leaking out of the mixing tank and affecting the environment.

[0065] In one specific embodiment, a vibration component 7 is provided below the support frame 3 and the filter screen 4. The vibration component 7 is fixed to the inner wall of the mixing chamber 102 and is used to drive the filter screen 4 to vibrate, thereby shaking off the material adhering to the filter screen surface and preventing the filter screen 4 from becoming clogged.

[0066] In one specific embodiment, the vibration component 7 includes a U-shaped oil box 701, with a transmission piston rod 702 passing through the top of one end of the U-shaped oil box 701 and at least one vibration piston rod 703 passing through the top of the other end of the U-shaped oil box 701. The vibration piston rod 703 is driven to perform a lifting piston movement by the up and down movement of the transmission piston rod 702, thereby applying vibration to the filter screen 4.

[0067] In one specific embodiment, a plurality of drive blocks 8 are spaced apart along the circumferential direction on the bottom surface of the support frame 3, the transmission piston rod 702 is located directly below the drive blocks 8, and the vibration piston rod 703 is located directly below the filter screen 4;

[0068] When the support frame 3 rotates with the first stirring shaft 2, the plurality of driving blocks 8 press the upper end of the transmission piston rod 702 at intervals, driving the transmission piston rod 702 to reciprocate up and down.

[0069] In one specific embodiment, the bottom of the drive block 8 has an arc-shaped structure.

[0070] In this invention, the first stirring shaft 2 rotates while also driving the support frame 3 and the filter screen 4 to rotate. The driving block 8 at the bottom edge of the support frame 3 rotates and makes a circular motion. During the circular motion, the driving block 8 continuously presses the transmission piston rod 702. When the transmission piston rod 702 rises and falls due to the pressing, it drives the oil inside the U-shaped oil box 701, causing the vibrating piston rod 703 to make a rising and falling piston motion. When the vibrating piston rod 703 makes a rising and falling piston motion, it applies vibration to the filter screen 4, thereby shaking off the material adhering to the surface of the filter screen 4, thus preventing the filter screen 4 from becoming clogged.

[0071] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A fiber-reinforced concrete spraying device, characterized in that, The dual-chamber small mixing assembly (1) includes a mixing tank (101), and a mixing chamber (102) and a storage chamber (103) are arranged sequentially from top to bottom inside the mixing tank (101). The bottom of the mixing chamber (102) is connected to the bottom of the storage chamber (103) and is equipped with an electronic valve (104). A dry material conveying pipe (105) and a water conveying pipe (106) are installed on the upper part of the outside of the mixing tank (101), and the dry material conveying pipe (105) and the water conveying pipe (106) are connected to the mixing chamber (102); The lower outer side of the mixing tank (101) is connected to an injection pipe (108) via a delivery pump (107).

2. The fiber-reinforced concrete spraying device according to claim 1, characterized in that, The mixing chamber (102) is equipped with a first stirring shaft (2), the upper end of which passes through the top of the mixing tank (101) and is connected to the stirring assembly (6). The stirring assembly (6) is used to drive the first stirring shaft (2) to rotate around its own axis.

3. The fiber-reinforced concrete spraying device according to claim 2, characterized in that, The stirring assembly (6) includes a drive motor (602), which is fixedly connected to the top of the mixing tank (101) via a bracket.

4. The fiber-reinforced concrete spraying device according to claim 3, characterized in that, The stirring assembly (6) further includes a second stirring shaft (607), which is disposed in the storage cavity (103).

5. A fiber-reinforced concrete spraying device according to claim 4, characterized in that, The stirring assembly (6) further includes a first transmission disk (601) and a second transmission disk (606). The first transmission disk (601) is installed between the lower end of the drive motor (602) and the upper end of the first stirring shaft (2). The lower end of the second stirring shaft (607) extends out of the bottom of the mixing tank (101) and is connected to the second transmission disk (606). It also includes a drive shaft (604) disposed on the outside of the mixing tank (101), the drive shaft (604) being rotatably connected to the outer side of the mixing tank (101), and the axis of the drive shaft (604) being parallel to the axis of the mixing tank (101); A first transmission belt (603) is connected between the upper end of the drive shaft (604) and the first drive disc (601). A second transmission belt (605) is connected between the lower end of the transmission shaft (604) and the second transmission disc (606).

6. A fiber-reinforced concrete spraying device according to claim 2, characterized in that, The upper end of the first stirring shaft (2) in the mixing chamber (102) is coaxially connected to an annular support frame (3), and an annular filter screen (4) is embedded inside the support frame (3). An exhaust port (5) is opened on the top of the mixing tank (101) directly above the filter screen (4).

7. A fiber-reinforced concrete spraying device according to claim 6, characterized in that, A vibration assembly (7) is provided below the support frame (3) and the filter screen (4). The vibration assembly (7) is fixed to the inner wall of the mixing chamber (102) and is used to drive the filter screen (4) to vibrate.

8. A fiber-reinforced concrete spraying device according to claim 7, characterized in that, The vibration assembly (7) includes a U-shaped oil box (701), with a transmission piston rod (702) passing through the top of one end of the U-shaped oil box (701) and a vibration piston rod (703) passing through the top of the other end of the U-shaped oil box (701). The vibration piston rod (703) is driven to perform a lifting piston movement by the up and down movement of the transmission piston rod (702), thereby applying vibration to the filter screen (4).

9. A fiber-reinforced concrete spraying device according to claim 8, characterized in that, Multiple drive blocks (8) are spaced apart along the circumferential direction on the bottom surface of the support frame (3). The transmission piston rod (702) is located directly below the drive block (8), and the vibration piston rod (703) is located directly below the filter screen (4). When the support frame (3) rotates with the first stirring shaft (2), the plurality of driving blocks (8) press the upper end of the transmission piston rod (702) at intervals to drive the transmission piston rod (702) to reciprocate up and down.

10. A fiber-reinforced concrete spraying device according to claim 9, characterized in that, The bottom of the drive block (8) has an arc-shaped structure.

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