Steel fiber self-compacting concrete preparation equipment
By using a combination of feeding components and mixing blades inside the feed pipe, the problem of uneven distribution of steel fibers in concrete is solved, enabling the efficient preparation of steel fiber self-compacting concrete and improving mixing uniformity and construction efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-07
AI Technical Summary
In existing technologies, steel fibers are unevenly distributed in concrete, leading to problems such as prolonged processing time and difficulty in uniform mixing.
A steel fiber self-compacting concrete preparation device is adopted. Through the combined use of the feeding component and the mixing blade in the feed pipe, the concrete and steel fiber are continuously mixed. The synergistic effect of the spiral conveying blade and the mixing blade improves the mixing uniformity and reduces the clumping of steel fibers.
It improves the continuity and uniformity of mixing concrete and steel fibers, reduces mixing time, avoids uneven distribution of steel fibers in concrete, and improves construction quality.
Smart Images
Figure CN224089310U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to concrete processing technical field, concretely relates to a kind of steel fiber self-compacting concrete preparation equipment. BACKGROUND
[0002] Steel fiber concrete refers to adding steel fiber in concrete, so that concrete has better tensile, bending, impact and fatigue resistance, and the conventional preparation means is mostly directly mixed with concrete and steel fiber, but due to the adhesion between a plurality of steel fibers when entering concrete, it is easy to be distributed in groups in unit volume of concrete, and in order to improve the uniformity of steel fiber distribution in concrete, it is often necessary to increase mixing time, which leads to the extension of overall processing time and the difficulty to ensure the uniform distribution of steel fiber mixing, which is not conducive to the preparation of uniform steel fiber concrete. SUMMARY
[0003] The utility model aims at providing a kind of steel fiber self-compacting concrete preparation equipment, to solve the problems mentioned in the background art.
[0004] To achieve the above technical purpose, the utility model adopts the following technical scheme:
[0005] A kind of steel fiber self-compacting concrete preparation equipment, including temporary storage box, the temporary storage box is as a whole and is open towards U-shaped structure, the temporary storage box lower side is equipped with mixing mechanism;
[0006] The mixing mechanism includes material guide pipe, feeding assembly and feeding port, the material guide pipe is integrally formed with temporary storage box and is communicated with each other, the material guide pipe is located in the side of temporary storage box and is close to tank bottom, the feeding assembly is arranged in the material guide pipe, and the feeding port is opened on the upper side of the material guide pipe;
[0007] The feeding assembly includes shaft, motor, spiral conveying blade and stirring blade, the shaft is rotatably arranged in the material guide pipe and extends into the temporary storage box, the motor is arranged on the outer side of the material guide pipe and is drivingly connected with the shaft, the spiral conveying blade is arranged on the shaft and is located in the temporary storage box and the material guide pipe away from the motor side section, and the stirring blade is arranged on the shaft and is not a spiral conveying blade section.
[0008] The feeding port is also provided with anti-blocking assembly, the anti-blocking assembly includes empty box, hydraulic telescopic cylinder and anti-blocking block, the empty box is arranged at the feeding port and communicated with the material guide pipe, the hydraulic telescopic cylinder is arranged on the upper side of the empty box, the anti-blocking block is slidingly arranged in the empty box and connected with the output shaft of the hydraulic telescopic cylinder, and the empty box side is provided with material guide hopper.
[0009] The lower side of the anti-blocking block is arc-shaped structure matched with the inner wall structure of the material guide pipe.
[0010] The opening of the material guide hopper is provided with a screening net.
[0011] The empty box is provided with an inspection window on the side away from the material guide hopper and on the upper side of the material guide pipe, and the discharge port of the material guide pipe is located at the lower end close to the motor.
[0012] The lower side of the temporary storage box is further provided with an extension pool, the vertical section of the extension pool also has a U-shaped structure and is integrally formed in communication with the temporary storage box, and the diameter size and the center position of the circular space on the lower side of the extension pool match the material guide space of the material guide pipe.
[0013] Compared with the prior art, the present application has at least the following advantages:
[0014] Through the arrangement of the mixing mechanism, the concrete in the temporary storage box will be conveyed into the material guide pipe through the feeding assembly, and the subsequent steel fibers input from the feeding port are mixed in the pipe, which can improve the processing continuity of the concrete and the uniformity of the mixing, and reduce the uneven distribution of the steel fibers in the unit concrete. BRIEF DESCRIPTION OF DRAWINGS
[0015] The present application can be further illustrated by the non-limiting embodiments shown in the accompanying drawings.
[0016] Fig. 1 The present application is a structural schematic view.
[0017] Fig. 2 The present application is a structural sectional view.
[0018] Fig. 3 The present application is another angle of the structural sectional view.
[0019] Temporary storage box 1, material guide pipe 2, feeding port 21, rotating shaft 3, motor 31, spiral conveying blade 32, stirring blade 33, empty box 4, hydraulic telescopic cylinder 41, anti-blocking block 42, material guide hopper 43, screening net 44, inspection window 45, discharge port 5, extension pool 6. DETAILED DESCRIPTION
[0020] In order for those skilled in the art to better understand the present application, the technical solutions of the present application are further described below in conjunction with the drawings and examples.
[0021] As shown in the drawings, Figs. 1-3 A steel fiber self-compacting concrete preparation equipment, comprising a temporary storage box 1, the temporary storage box 1 is in a whole U-shaped structure with an opening facing, and the temporary storage box 1 is provided with a mixing mechanism on the lower side;
[0022] The mixing mechanism comprises a material guide pipe 2, a feeding assembly and a feeding opening 21, the material guide pipe 2 is integrally formed with the temporary storage box 1 and is in communication with each other, the material guide pipe is located at the side of the temporary storage box and is close to the bottom of the box, the feeding assembly is arranged in the material guide pipe 2, and the feeding opening 21 is opened on the upper side of the material guide pipe 2;
[0023] The feeding assembly comprises a rotating shaft 3, a motor 31, a spiral conveying blade 32 and a stirring blade 33, the rotating shaft 3 is rotatably arranged in the material guide pipe 2 and extends into the temporary storage box 1, the motor 31 is arranged outside the material guide pipe 2 and is in transmission connection with the rotating shaft 3, the spiral conveying blade 32 is arranged on the rotating shaft 3 and is located in the temporary storage box 1 and the material guide pipe 2 and is away from the side of the motor 31, and the stirring blade 33 is arranged on the rotating shaft 3 and is not arranged on the spiral conveying blade 32.
[0024] When the steel fiber reinforced concrete is prepared, the already stirred concrete is loaded into the temporary storage box 1, the feeding assembly in the temporary storage box 1 sends the concrete into the material guide pipe 2, the feeding opening 21 is used for adding steel fibers, the motor 31 is started when the feeding is carried out, the output shaft of the motor 31 drives the rotating shaft 3 to rotate, the spiral stirring blade 33 on the rotating shaft 3 produces a conveying and pushing action on the concrete in the temporary storage box 1 and the material guide pipe 2, when the concrete is sent into the material guide pipe 2, since the already stirred concrete is a fluid, but its density is large and its flowability is poor, therefore, when the concrete is conveyed by the spiral conveying blade 32, the concrete mainly presents a translational state, when the concrete is continuously conveyed and separated from the spiral conveying blade 32, the concrete completely loses the pushing of the spiral conveying blade 32 and is mainly pushed by the concrete at the rear side, in the process, the concrete is in the stirring blade 33 segment of the rotating shaft 3 in the material guide pipe 2, at this time, the stirring blade 33 presents a circular motion, therefore, relative to the translational concrete, the stirring blade 33 produces a stirring action on the concrete, and the steel fibers added from the feeding opening 21 can be mixed with the concrete, meanwhile, since the concrete at this time is completely pushed by the soil at the rear side, the compactness of the concrete in the stirring blade 33 segment is higher, therefore, the internal air bubbles and hollow parts possibly existing after the steel fibers are added are reduced, and the subsequent construction is more beneficial;
[0025] Finally, the steel fiber reinforced concrete is discharged, in this way, the mixing of the concrete and the steel fibers presents a continuous processing, compared with the conventional mixing mode in which the concrete and the steel fibers are added and mixed at one time, on the one hand, the stirring time required for uniform mixing can be reduced, and on the other hand, the steel fibers can be more evenly mixed in the concrete, so that the uniformity is improved;
[0026] In this application, the motor 31 is a common drive device in the art or existing art. It can output rotational power through electric drive and drive the rotating shaft 3 to rotate. Of course, its output power is not limited to direct connection. It can also be achieved by the connection of belt and pulley. In this application, there are no restrictions on its model and transmission method. Its structure and principle will not be described in detail. However, those skilled in the art should understand or use the corresponding device to implement it.
[0027] An anti-blocking component is also provided at the feeding port 21. The anti-blocking component includes an empty box 4, a hydraulic telescopic cylinder 41, and an anti-blocking block 42. The empty box 4 is located at the feeding port 21 and is connected to the guide pipe 2. The hydraulic telescopic cylinder 41 is located on the upper side of the empty box 4. The anti-blocking block 42 is slidably located in the empty box 4 and is connected to the output shaft of the hydraulic telescopic cylinder 41. A guide hopper 43 is provided on the side of the empty box 4.
[0028] Furthermore, although the mixed concrete itself has low fluidity and mainly moves horizontally within the feed pipe 2, there is still a possibility that it may adhere to or overflow from the feed port 21. Therefore, during the processing, the steel fiber is mainly input from the feed hopper 43 of the empty box 4, while the hydraulic telescopic cylinder 41 is opened and closed synchronously with the rotation of the rotating shaft 3, thereby causing the anti-blocking block 42 in the empty box 4 to move up and down at intervals. At this time, the concrete adhering to or entering the feed port 21 will be squeezed out under the push of the anti-blocking block 42, which, together with the spiral conveyor blade 32, achieves a scraping effect.
[0029] In this application, the hydraulic telescopic cylinder 41 is a common linear motion device in the art or existing art. It can output linear motion through the delivery of external hydraulic oil. Its structure and principle are similar to those of a piston cylinder. Of course, in some other embodiments, it can also be driven by a linear motor 31 or a screw drive. This application does not limit its model and implementation method, and its structure and principle will not be described in detail. However, those skilled in the art should understand or use the corresponding device to implement it.
[0030] The lower side of the anti-blocking block 42 has an arc-shaped structure that matches the inner wall structure of the feed tube 2.
[0031] Furthermore, to improve the anti-blocking and scraping effects, the spiral conveyor blade 32 and the guide pipe 2 are in a close fit. When the lower side of the anti-blocking block 42 forms an arc-shaped structure that matches the inner wall structure of the guide pipe 2, the anti-blocking block 42 moves down until it reaches the feeding port 21, which will form a state that supplements the structure of the guide pipe 2. At this time, the feeding port 21 of the guide pipe 2 is closed and forms a completely tubular structure. In this way, when the spiral conveyor blade 32 passes the anti-blocking block 42, it will more effectively scrape the lower end of the anti-blocking block 42. At this time, the hydraulic telescopic cylinder 41 drives the anti-blocking block 42 to reset, and the lifting and moving of the anti-blocking block 42 can also seal the connection between the guide hopper 43 and the empty box 4, thereby achieving the state and need of intermittent feeding.
[0032] A screening screen 44 is provided at the opening of the feed hopper 43.
[0033] This can block some of the clumps of incompletely broken steel fibers, preventing them from entering the concrete and causing uneven mixing.
[0034] Inspection windows 45 are provided on the side of the empty box 4 away from the guide hopper 43 and on the upper side of the guide pipe 2. The discharge port 5 of the guide pipe 2 is located at the lower end near the motor 31.
[0035] This allows for the cleaning and maintenance of such relatively enclosed spaces and areas after processing. The inspection window 45 is integrally formed with the corresponding device or structure to form a regular closed surface when closed, and only forms a window structure when open. The connection structure can be made using any connection method such as bolts or clips, which will not be elaborated on here.
[0036] The temporary storage box 1 is also provided with an extension pool 6 on the lower side. The vertical cross-section of the extension pool 6 is also U-shaped and is integrally formed and connected with the temporary storage box 1. The diameter and center position of the circular space on the lower side of the extension pool 6 match the material guiding space of the guide pipe 2.
[0037] The shape of the extended pool 6 allows the concrete in the temporary storage box 1 to enter more smoothly and be pushed and transported by the spiral conveyor blade 32, thereby improving the flow and conveying efficiency and effect of the concrete in the temporary storage box 1.
[0038] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.
Claims
1. A steel fiber self-compacting concrete preparation device, comprising a temporary storage tank, characterized in that: The temporary storage box has an overall U-shaped structure with the opening facing outwards, and a mixing mechanism is provided on the lower side of the temporary storage box; The mixing mechanism includes a guide pipe, a feeding assembly, and a feeding port. The guide pipe is integrally formed with the temporary storage box and is interconnected with it. The guide pipe is located on the side of the temporary storage box and close to the bottom of the box. The feeding assembly is located inside the guide pipe, and the feeding port is opened on the upper side of the guide pipe. The feeding assembly includes a rotating shaft, a motor, a spiral conveying blade, and a stirring blade. The rotating shaft is rotatably disposed inside the guide pipe and extends into the temporary storage box. The motor is disposed outside the guide pipe and is connected to the rotating shaft for transmission. The spiral conveying blade is disposed on the rotating shaft and located in the temporary storage box and the guide pipe on the side away from the motor. The stirring blade is disposed on the section of the rotating shaft that is not the spiral conveying blade.
2. The steel fiber self-compacting concrete preparation equipment according to claim 1, characterized in that: The feeding port is also equipped with an anti-blocking component, which includes an empty box, a hydraulic telescopic cylinder and an anti-blocking block. The empty box is located at the feeding port and is connected to the guide pipe. The hydraulic telescopic cylinder is located on the upper side of the empty box. The anti-blocking block is slidably located in the empty box and is connected to the output shaft of the hydraulic telescopic cylinder. A guide hopper is provided on the side of the empty box.
3. The steel fiber self-compacting concrete preparation equipment according to claim 2, characterized in that: The lower side of the anti-blocking block has an arc-shaped structure that matches the inner wall structure of the feed tube.
4. The steel fiber self-compacting concrete preparation equipment according to claim 3, characterized in that: The opening of the feed hopper is equipped with a screening screen.
5. The steel fiber self-compacting concrete preparation equipment according to claim 4, characterized in that: The empty box is equipped with inspection windows on the side away from the feed hopper and on the upper side of the feed pipe. The discharge port of the feed pipe is located at the lower end near the motor.
6. The steel fiber self-compacting concrete preparation equipment according to claim 5, characterized in that: The temporary storage box is also provided with an extension pool on its lower side. The vertical cross-section of the extension pool is also U-shaped and is integrally formed and connected with the temporary storage box. The diameter and center position of the circular space on the lower side of the extension pool match the material guiding space of the guide pipe.