Fiber concrete preparation device

Abstract

The utility model relates to a fiber concrete preparation device. The utility model is applicable to the technical field of concrete manufacturing. According to the technical scheme, the device comprises a stirring mechanism used for stirring and mixing fibers and concrete to form fiber concrete; the batching mechanism is connected with the stirring mechanism, and the batching mechanism is used for feeding various materials required by concrete into the stirring mechanism; the fiber feeding mechanism is arranged at the top of the stirring mechanism, and the fiber feeding mechanism is used for feeding fibers stored in the fiber feeding mechanism into the stirring mechanism; the negative electrode end of the high-voltage electrostatic generator is connected to the fiber feeding mechanism, the positive electrode end of the high-voltage electrostatic generator is connected to the stirring mechanism, and the high-voltage electrostatic generator is used for enabling fibers in the fiber feeding mechanism to carry negative charges and enabling concrete in the stirring mechanism to carry positive charges; and the controller can control the fiber feeding mechanism to intermittently add fibers into the stirring mechanism, so that the fibers and concrete formed by stirring are uniformly mixed under the action of mutual attraction of charges of different polarities.

Description

TECHNICAL FIELD

[0001] The utility model relates to concrete manufacturing technical field especially a kind of fiber concrete preparation device. BACKGROUND

[0002] Fiber can enhance concrete working performance, mechanical properties and durability excellent, can be used as structural reinforcement and repair, highway, bridge, airport runway and other important infrastructure. However, in the traditional fiber concrete preparation process, fiber usually adopts artificial spreading and dispersion, there is the problem of uneven mixing of fiber, aggregation, so that fiber concrete production quality is unstable, and then directly affect the building life.

[0003] Therefore, it is necessary to provide a kind of fiber concrete preparation device to solve the problem of fiber not easy to disperse and too concentrated in the process of fiber concrete preparation. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is: in view of the above problems, provide a kind of fiber concrete preparation device.

[0005] The technical scheme adopted by the utility model is: a kind of fiber concrete preparation device, comprising:

[0006] Stirring mechanism, for mixing fiber and concrete to form fiber concrete;

[0007] Batching mechanism, connected with the stirring mechanism, the batching mechanism is used to send various materials required by concrete into the stirring mechanism;

[0008] Fiber feeding mechanism, located at the top of the stirring mechanism, the fiber feeding mechanism is used to send the fiber stored in the interior into the stirring mechanism;

[0009] High-voltage electrostatic generator, its negative terminal is connected to the fiber feeding mechanism, and its positive terminal is connected to the stirring mechanism, and the high-voltage electrostatic generator is used to make the fiber in the fiber feeding mechanism carry negative charge and the concrete in the stirring mechanism carry positive charge;

[0010] Controller, communication connection with the stirring mechanism, the batching mechanism, the fiber feeding mechanism, the high-voltage electrostatic generator, the controller can control the fiber feeding mechanism to add fiber intermittently into the stirring mechanism, so that fiber and the concrete formed by stirring are mixed uniformly under the action of heterocharge mutual attraction.

[0011] Through the above technical means, the controller is used to control the feeding mechanism to add materials into the stirring mechanism, so that the materials in the stirring mechanism are stirred to form concrete, the high-voltage electrostatic generator is controlled to make the fibers in the fiber feeding mechanism carry negative charges, and the concrete in the stirring mechanism carries positive charges, and then the fiber feeding mechanism is used to gradually and intermittently add fibers into the concrete in the stirring mechanism, so that the fibers are uniformly distributed in the concrete under the action of positive and negative charges, thereby improving the production quality of the fiber concrete as a whole.

[0012] In some embodiments, the fiber feeding mechanism comprises a trapezoidal bin, a metal mesh, an air compressor and an automatic injection port, the air compressor and the automatic injection port are connected to the controller through wires, the trapezoidal bin is installed on the top of the stirring mechanism through a support, the bottom of the trapezoidal bin is provided with a plurality of automatic injection ports facing the stirring mechanism, a metal mesh is installed on the inner bottom of the trapezoidal bin above the automatic injection ports, the negative electrode of the high-voltage electrostatic generator is connected to the metal mesh, the top of the trapezoidal bin is provided with a feeding port for adding fibers, and the sidewall of the trapezoidal bin is connected to the air compressor.

[0013] In some embodiments, the fiber feeding mechanism further comprises an air blower connected to the controller through wires, and the sidewall of the trapezoidal bin is connected to the air blower, and the air blower is used to scatter the fibers in the trapezoidal bin.

[0014] In some embodiments, the feeding mechanism comprises a first feeding assembly, a second feeding assembly and a third feeding assembly, and the stirring mechanism is connected to the first feeding assembly, the second feeding assembly and the third feeding assembly, the first feeding assembly is used to add coarse and fine aggregates into the stirring mechanism, the second feeding assembly is used to add fine powdery materials into the stirring mechanism, and the third feeding assembly is used to add water and medicaments into the stirring mechanism.

[0015] In some embodiments, the first feeding assembly comprises a first gate and a belt conveyor, the belt conveyor is connected to the controller through wires, the stirring mechanism is provided with a first opening, the first opening is provided with a first gate, and the first gate is connected to the belt conveyor, the coarse and fine aggregates include stones and sand, and the stones and sand are sent into the stirring mechanism through the belt conveyor.

[0016] In some embodiments, the second feeding assembly comprises a second gate and a screw conveyor, the screw conveyor is connected to the controller through wires, the stirring mechanism is provided with a second opening, the second opening is provided with a second gate, and the second gate is connected to the screw conveyor, the fine powdery materials include cement and fly ash, and the cement and fly ash are sent into the stirring mechanism through the screw conveyor.

[0017] In some embodiments, the third feeding assembly comprises a pressurized water tank, a retarder tank, a water-reducing agent tank, solenoid valves, a flow meter and a spray head, the solenoid valves, the spray head and the flow meter are connected to the controller by wires, the pressurized water tank is connected to a plurality of spray heads inside the stirring mechanism by water pipes, the retarder tank, the water-reducing agent tank and the flow meter are connected to the water pipes between the pressurized water tank and the spray heads in sequence, and the pressurized water tank, the retarder tank and the water-reducing agent tank are each provided with a solenoid valve.

[0018] In some embodiments, the stirring mechanism comprises a shell, a base, a motor, a transmission shaft, a blade, a sliding block and a latch, the bottom of the shell is provided with the base, the middle of the bottom of the shell is provided with the motor, the output end of the motor is connected to the transmission shaft inside the shell, the transmission shaft is connected to the sliding block through the blade, the bottom of the sidewall of the shell is provided with a discharge port, and the discharge port is provided with the latch for controlling the discharge.

[0019] In some embodiments, the fiber is one of polypropylene fiber, basalt fiber and glass fiber.

[0020] In some embodiments, the concrete inside the stirring mechanism is added with a conductive material, and the conductive material is at least one of steel slag, graphite powder and carbon black.

[0021] The utility model discloses the beneficial effects are:

[0022] 1. Various materials are added to the stirring mechanism through the batching mechanism, the stirring mechanism is used to stir the various materials to form concrete, the high-voltage electrostatic generator is used to make the fibers in the fiber feeding mechanism carry negative charges and the concrete in the stirring mechanism carry positive charges, the fibers are distributed relatively dispersedly due to the repelling characteristic of the same physical properties of the charges, the fiber feeding mechanism is controlled to gradually add the fibers to the stirring mechanism, and the stirring mechanism is used to stir the fibers and the concrete, the concrete carrying positive charges can uniformly adsorb the fibers carrying negative charges sprayed out due to the physical property of the attraction of the opposite charges, the fibers are uniformly distributed, the switch of the high-voltage electrostatic generator is controlled to realize multiple uniform distribution, and the production quality of the fiber concrete is improved as a whole.

[0023] 2. The air compressor is used to pressurize the trapezoidal bin, and then the pressure is released instantaneously, so that the fibers are given an initial speed, and the phenomenon that the adsorption effect is poor due to the long distance of the electrostatic field can be effectively overcome.

[0024] 3. The conductive material is added to the concrete, the conductivity of the concrete can be effectively improved, the electrostatic adsorption effect of the concrete on the charged fibers is improved, the concrete can also have the effect of snow removal and ice melting due to the electrothermal property, and the concrete can be applied to special projects such as airport runways. BRIEF DESCRIPTION OF DRAWINGS

[0025] Fig. 1 is a structural schematic diagram of the present application.

[0026] Fig. 2 is a partial structural plan view of the stirring mechanism and the fiber feeding mechanism.

[0027] Fig. 3 is a structural schematic diagram of the third feeding assembly.

[0028] BRIEF DESCRIPTION OF DRAWINGS

[0029] 1. high-voltage electrostatic generator; 2, metal mesh; 3, trapezoidal bin; 4, fiber; 5, air blower; 6, air compressor; 7, automatic spraying port; 8, controller; 9, stirring mechanism; 10, belt conveyor; 11, screw feeder; 12, third feeding assembly; 13, wire; 14, concrete; 15, support; 16, feeding port; 17, first gate; 18, second gate; 901, motor; 902, transmission shaft; 903, blade; 904, sliding block; 905, bolt; 906, base; 907, bin shell; 1201, pressurized water tank; 1202, retarder medicine tank; 1203, water-reducing agent medicine tank; 1204, water pipe; 1205, electromagnetic valve; 1206, flow meter; 1207, spray head.

[0030] This specification includes references to“one embodiment” or“an embodiment.” The appearance of the phrases“in one embodiment” or“in an embodiment” does not necessarily refer to the same embodiment. Particular features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0031] “includes”, the term is open. As used in the appended claims, the term does not exclude additional structures or steps.

[0032] “first”,“second”, and the like. As used herein, these terms act as labels for nomenclature to refer to prior nouns that they modify, and do not necessarily connote any type of ordering (e.g., spatial, temporal, logical, etc.). DETAILED DESCRIPTION

[0033] In order to make the person skilled in the art better understand the technical scheme of the present application, the technical scheme of the present application will be further explained in combination with specific embodiments.

[0034] Embodiment one:

[0035] In combination with Figs. 1 to 3As shown, the embodiment is a fiber concrete preparation device, which comprises a stirring mechanism 9, a batching mechanism, a fiber feeding mechanism, a high-voltage electrostatic generator 1 and a controller 8. The stirring mechanism 9, the batching mechanism, the fiber feeding mechanism and the high-voltage electrostatic generator 1 are in communication connection with the controller 8. The top of the stirring mechanism 9 is provided with the fiber feeding mechanism, which is used to send the fibers 4 stored in the fiber feeding mechanism into the stirring mechanism 9. The stirring mechanism 9 is connected with the batching mechanism, which is used to send various materials required by the concrete 14 into the stirring mechanism 9. The stirring mechanism 9 can stir the various materials to form the concrete 14. The negative electrode end of the high-voltage electrostatic generator 1 is connected to the fiber feeding mechanism, and the positive electrode end of the high-voltage electrostatic generator 1 is connected to the stirring mechanism 9. The high-voltage electrostatic generator 1 is used to make the fibers 4 in the fiber feeding mechanism carry negative charges and make the concrete 14 in the stirring mechanism 9 carry positive charges. The controller 8 first controls the batching mechanism to add various materials into the stirring mechanism 9, so that the stirring mechanism 9 stirs the various materials to form the concrete 14, and then controls the high-voltage electrostatic generator 1 to add opposite charges to the fibers 4 and the concrete 14. The fiber feeding mechanism is controlled to intermittently send the fibers 4 carrying negative charges into the stirring mechanism 9, so that the fibers 4 and the concrete 14 are uniformly mixed under the action of opposite charges attracting each other.

[0036] In some embodiments, the stirring mechanism 9 comprises a housing 907, a base 906, a motor 901, a transmission shaft 902, a blade 903, a sliding block 904 and a latch 905. The bottom of the housing 907 is provided with the base 906 for support. The middle position of the bottom of the housing 907 is provided with the motor 901. The output end of the motor 901 is connected with the transmission shaft 902 located inside the housing 907 through the outer wall of the housing 907. The transmission shaft 902 is connected with the sliding block 904 capable of abutting the bottom of the housing 907 through the blade 903. The sidewall of the housing 907 is provided with a discharge port, and the discharge port is provided with the latch 905 for controlling discharge. Specifically, in the embodiment, the housing 907 is connected with the ground wire.

[0037] The motor 901 drives the transmission shaft 902 to rotate, and the transmission shaft 902 drives the blade 903 and the sliding block 904 to rotate in the housing 907, so that the materials in the housing 907 are continuously stirred to form the concrete 14 under the action of the blade 903 and the sliding block 904.

[0038] In some implementations, the fiber feeding mechanism includes a trapezoidal bin 3, a metal mesh 2, an air compressor 6, and an automatic injection port 7. Both the air compressor 6 and the automatic injection port 7 are connected to a controller 8 via a wire 13. The trapezoidal bin 3 is mounted on the top of a bin shell 907 via a support member 15. The bottom of the trapezoidal bin 3 has multiple automatic injection ports 7 facing inwards from the bin shell 907. A metal mesh 2 is installed above the automatic injection ports 7 at the inner bottom of the trapezoidal bin 3, and fibers 4 are placed on the metal mesh 2. The negative terminal of the high-voltage electrostatic generator 1 is connected to the metal mesh 2. The top of the trapezoidal bin 3 has a movable feeding port 16 for adding fibers 4, and the air compressor 6 is connected to the side wall of the trapezoidal bin 3. Specifically, in this embodiment, the support member 15 is made of square steel, which supports the trapezoidal bin 3.

[0039] Furthermore, the fiber feeding mechanism also includes a blower 5, which is connected to the controller 8 via a wire 13. The blower 5 is connected to the side wall of the trapezoidal chamber 3, and is used to disperse the fibers 4 inside the trapezoidal chamber 3. Specifically, in this embodiment, the trapezoidal chamber 3 has symmetrical openings on both sides, and each opening is connected to a blower 5.

[0040] By pressurizing the trapezoidal chamber 3 with air compressor 6 and then releasing the pressure instantly, the fiber 4 is given a certain initial velocity, which can overcome the phenomenon that poor adsorption effect is caused by the long distance of the electrostatic field.

[0041] In some implementation schemes, the batching mechanism includes a first feeding component, a second feeding component, and a third feeding component 12. The mixing mechanism 9 is connected to the first feeding component, the second feeding component, and the third feeding component 12. The first feeding component is used to add coarse and fine aggregates into the mixing mechanism 9, the second feeding component is used to add fine powder materials into the mixing mechanism 9, and the third feeding component 12 is used to add water and chemicals into the mixing mechanism 9.

[0042] Furthermore, the first feeding assembly includes a first gate 17 and a belt conveyor 10. The belt conveyor 10 is connected to the controller 8 via a wire 13. The silo shell 907 has a first opening, and the first gate 17 is installed at the first opening. The first gate 17 is connected to the belt conveyor 10. In this embodiment, the coarse and fine aggregates include gravel and sand, which are fed into the silo shell 907 via the belt conveyor 10.

[0043] Furthermore, the second feeding assembly includes a second gate 18 and a screw conveyor 11. The screw conveyor 11 is connected to the controller 8 via a wire 13. The mixing mechanism 9 is provided with a second opening, and a second gate 18 is installed at the second opening. The second gate 18 is connected to the screw conveyor 11. The fine powdery material includes cement and fly ash. The cement and fly ash are fed into the mixing mechanism 9 via the screw conveyor 11 to reduce dust pollution and the impact of the external environment.

[0044] Furthermore, such as Fig. 3As shown, the third feeding assembly 12 includes a pressurized water tank 1201, a retarder tank 1202, a water-reducing agent tank 1203, a solenoid valve 1205, a flow meter 1206, and a spray head 1207. The solenoid valve 1205, the spray head 1207, and the flow meter 1206 are all connected to the controller 8 via wires 13. The pressurized water tank 1201 is connected to multiple spray heads 1207 that face the interior of the silo 907 and are evenly spaced via water pipes 1204. The section of water pipe 1204 between the pressurized water tank 1201 and the spray head 1207 is connected in sequence to the retarder tank 1202, the water-reducing agent tank 1203, and the flow meter 1206. Each of the water pipes 1204 of the pressurized water tank 1201, the retarder tank 1202, and the water-reducing agent tank 1203 is equipped with a separate solenoid valve 1205 to control the switch.

[0045] Considering the different densities and particle sizes of the materials, gravel and sand are coarse and fine aggregates with relatively high densities and large particle sizes; while cement and fly ash are fine powder materials with lower densities. If all materials enter the mixer through the same inlet, stratification may occur under gravity, where heavier aggregates settle to the bottom of the mixer first, while lighter powder materials float on top, affecting the uniformity of mixing. Therefore, a belt conveyor 10 is used to transport gravel and sand into the silo shell 907, and a screw conveyor 11 is used to transport cement and fly ash into the silo shell 907. By introducing different types of materials into the mixing mechanism 9 from different locations, the material distribution during the mixing process is improved, and it ensures that each component is added accurately according to the predetermined ratio. At the same time, materials such as cement and fly ash easily generate a large amount of dust. Using the screw conveyor 11 to transport them separately in a closed environment can reduce dust leakage and reduce environmental pollution. High-pressure water is introduced into the water pipe 1204 through the pressurized water tank 1201. The high-pressure water carries the retarder and water-reducing agent powder and enters the concrete 14 inside the silo shell 907 through the spray head 1207.

[0046] In some implementations, fiber 4 in this embodiment is one of polypropylene fiber, basalt fiber, or glass fiber, and cannot be metal fiber such as steel fiber.

[0047] In some implementations, conductive material is added to the concrete 14 inside the mixing mechanism 9. In this embodiment, the conductive material is steel slag, graphite powder, carbon black, or a combination thereof.

[0048] By adding conductive materials to concrete 14, the problem that concrete 14 cannot directly achieve electrostatic adsorption due to its poor conductivity is overcome. Moreover, the produced conductive concrete can also have the effect of snow removal and ice melting by utilizing its electrothermal properties, and can be applied to special projects such as airport runways.

[0049] The implementation principle of the fiber-reinforced concrete preparation device in this embodiment is as follows:

[0050] By utilizing the physical property of like charges repelling each other, the fiber 4 is given a negative charge, which facilitates dispersion; by utilizing the physical property of opposite charges attracting each other, the concrete 14 is given a positive charge, which uniformly adsorbs the negatively charged fibers sprayed under pressure, thus achieving uniform distribution of the fiber 4. Furthermore, multiple uniform distributions can be achieved by controlling the switch of the high-voltage electrostatic generator 1, thereby improving the overall production quality of fiber-reinforced concrete.

[0051] This device improves production efficiency and avoids manual interference by employing automatic control technology. Furthermore, its components are readily available, eliminating the need for custom production, making assembly and operation convenient, and thus possessing high value for widespread application.

[0052] Example 2:

[0053] This embodiment describes a method for using a fiber-reinforced concrete preparation device, applied to the fiber-reinforced concrete preparation device in Embodiment 1, and includes the following steps:

[0054] S1. Weigh the various materials according to the set concrete 14 mix ratio, introduce the fiber 4 into the trapezoidal bin 3 through the feeding port 16, and transport the materials into the bin shell 907.

[0055] S2. After the above materials are added, the motor 901 is started initially to stir the inside of the silo 907. After 1 minute, the stirring stops. The weight of the reagents is weighed according to the mixing ratio and added to the retarder tank 1202 and the water-reducing agent tank 1203 respectively. The solenoid valve 1205 and the flow meter 1206 are opened in sequence by the controller 8. At this time, the high-pressure water in the pressurized water tank 1201 carries the reagents into the silo 907 through the water pipe 1204. After the flow meter 1206 detects that the water volume has reached the set value, the solenoid valve 1205 is automatically closed.

[0056] S3. Continue mixing with mixing mechanism 9 for 5 minutes. After mixing, turn on blower 5 and high-voltage electrostatic generator 1 to disperse the fibers 4 in trapezoidal chamber 3 and make them negatively charged, so that the concrete 14 in mixing mechanism 9 becomes positively charged. Then turn on air compressor 6 to pressurize trapezoidal chamber 3. After the pressure reaches 1MPa, turn off air compressor 6. Finally, open automatic spray nozzle 7. The fibers 4 fly downwards at a certain initial velocity. When they approach the concrete 14, they are attracted and can evenly adhere to the surface of concrete 14. Then close automatic spray nozzle 7 and mix evenly again.

[0057] S4. Repeat the process of pressurizing the trapezoidal silo 3, then opening the automatic injection port 7 to spray fiber 4, and then mixing until fiber 4 is used up, to obtain high-quality fiber concrete.

[0058] S5. Turn off the high-voltage electrostatic generator 1, blower 5, high-voltage machine, and pull out the pin 905 on the mixing mechanism 9. The fiber concrete will flow out from the discharge port and can then be transported for engineering construction.

[0059] In some implementations, step S1 includes:

[0060] S1.1. Transport the gravel and sand into the silo 907 via a belt conveyor, and close the first gate 17 after completion;

[0061] S1.2. Cement and fly ash are transported into the silo 907 by screw conveyor 11, and the second gate 18 is closed after the process is completed.

[0062] S1.3. While conveying, fill the pressurized water tank 1201 with water, control the pressure at 0.1MPa, open the solenoid valve 1205 and the spray head 1207 to prevent the dust concentration inside the silo 907 from being too high and causing the high voltage electrostatic generator 1 to leak electricity and cause an explosion.

[0063] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A fiber-reinforced concrete preparation apparatus, characterized in that, include: A mixing mechanism (9) is used to mix the fiber (4) with the concrete (14) to form fiber concrete; A batching mechanism is connected to the mixing mechanism (9), which is used to feed the materials required for concrete (14) into the mixing mechanism (9). A fiber feeding mechanism is located on top of the stirring mechanism (9). The fiber feeding mechanism is used to feed the internally stored fiber (4) into the stirring mechanism (9). A high-voltage electrostatic generator (1) has its negative end connected to the fiber feeding mechanism and its positive end connected to the stirring mechanism (9). The high-voltage electrostatic generator (1) is used to make the fiber (4) in the fiber feeding mechanism carry a negative charge and the concrete (14) in the stirring mechanism (9) carry a positive charge. The controller (8) is connected in communication with the mixing mechanism (9), the batching mechanism, the fiber feeding mechanism, and the high-voltage electrostatic generator (1). The controller (8) can control the fiber feeding mechanism to intermittently add fiber (4) to the mixing mechanism (9), so that the fiber (4) and the concrete (14) formed by mixing are mixed evenly under the mutual attraction of opposite charges.

2. The fiber-reinforced concrete preparation apparatus according to claim 1, characterized in that: The fiber feeding mechanism includes a trapezoidal bin (3), a metal mesh (2), an air compressor (6), and an automatic injection port (7). The air compressor (6) and the automatic injection port (7) are connected to the controller (8) via a wire (13). The trapezoidal bin (3) is installed on the top of the stirring mechanism (9) via a support (15). The bottom of the trapezoidal bin (3) is provided with multiple automatic injection ports (7) facing the stirring mechanism (9). The inner bottom of the trapezoidal bin (3) is provided with a metal mesh (2) located above the automatic injection port (7). The negative terminal of the high-voltage electrostatic generator (1) is connected to the metal mesh (2). The top of the trapezoidal bin (3) is provided with a feeding port (16) for adding fibers (4). The side wall of the trapezoidal bin (3) is connected to the air compressor (6).

3. The fiber-reinforced concrete preparation apparatus according to claim 2, characterized in that: The fiber feeding mechanism also includes a blower (5), which is connected to the controller (8) via a wire (13). The side wall of the trapezoidal bin (3) is connected to the blower (5), which is used to disperse the fibers (4) in the trapezoidal bin (3).

4. The fiber-reinforced concrete preparation apparatus according to claim 1, characterized in that: The batching mechanism includes a first feeding component, a second feeding component and a third feeding component (12). The mixing mechanism (9) is connected to the first feeding component, the second feeding component and the third feeding component (12). The first feeding component is used to add coarse and fine aggregates into the mixing mechanism (9), the second feeding component is used to add fine powder materials into the mixing mechanism (9), and the third feeding component (12) is used to add water and medicines into the mixing mechanism (9).

5. The fiber-reinforced concrete preparation apparatus according to claim 4, characterized in that: The first feeding component includes a first gate (17) and a belt conveyor (10). The belt conveyor (10) is connected to the controller (8) via a wire (13). The mixing mechanism (9) is provided with a first opening, and a first gate (17) is provided at the first opening. The first gate (17) is connected to the belt conveyor (10). The coarse and fine aggregates include gravel and sand. The gravel and sand are fed into the mixing mechanism (9) via the belt conveyor (10).

6. The fiber-reinforced concrete preparation apparatus according to claim 4, characterized in that: The second feeding assembly includes a second gate (18) and a screw conveyor (11). The screw conveyor (11) is connected to the controller (8) via a wire (13). The mixing mechanism (9) is provided with a second opening, and a second gate (18) is provided at the second opening. The second gate (18) is connected to the screw conveyor (11). The fine powder material includes cement and fly ash. The cement and fly ash are fed into the mixing mechanism (9) via the screw conveyor (11).

7. The fiber-reinforced concrete preparation apparatus according to claim 4, characterized in that: The third feeding component (12) includes a pressurized water tank (1201), a retarder tank (1202), a water-reducing agent tank (1203), a solenoid valve (1205), a flow meter (1206), and a spray head (1207). The solenoid valve (1205), the spray head (1207), and the flow meter (1206) are all connected to the controller (8) via wires (13). The pressurized water tank (1201) is connected via a water pipe (1204). There are multiple spray heads (1207) facing the inside of the stirring mechanism (9). A section of water pipe (1204) located between the pressurized water tank (1201) and the spray head (1207) is connected in sequence to a retarder tank (1202), a water-reducing agent tank (1203) and a flow meter (1206). The pressurized water tank (1201), the retarder tank (1202) and the water-reducing agent tank (1203) are all equipped with solenoid valves (1205).

8. The fiber-reinforced concrete preparation apparatus according to claim 1, characterized in that: The stirring mechanism (9) includes a silo shell (907), a base (906), a motor (901), a drive shaft (902), blades (903), a slider (904), and a pin (905). The silo shell (907) has a base (906) at its bottom. The motor (901) is installed in the middle of the bottom of the silo shell (907). The output end of the motor (901) is connected to the drive shaft (902) located inside the silo shell (907). The drive shaft (902) is connected to the slider (904) via the blades (903). The bottom of the side wall of the silo shell (907) has a discharge port. A pin (905) is provided at the discharge port to control the discharge.

9. The fiber-reinforced concrete preparation apparatus according to claim 1, characterized in that: The fiber (4) is one of polypropylene fiber (4), basalt fiber (4), or glass fiber (4).

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