Concrete production line added with chopped fibers
By installing powder mixing tanks and screw conveyors in the concrete production line, the problem of uneven dispersion of chopped fibers in concrete is solved, achieving uniform fiber distribution and improving the strength and stability of concrete.
Patent Information
- Application Number
- CN202520174615.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-26
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2035-01-26
AI Technical Summary
When short-cut fibers are added to concrete, existing technologies make it difficult to achieve uniform dispersion within the concrete, resulting in uneven fiber distribution and affecting the strength and toughness of the concrete.
Short fibers are mixed with cement powder in a powder mixing tank. The ratio and speed are precisely controlled by a screw conveyor to ensure uniform mixing before being transported to a concrete mixing plant along with other materials, thus forming a concrete production line with added short fibers.
It achieves uniform distribution of short-cut fibers in concrete, avoids stress concentration, improves the strength and overall performance of concrete, and meets the performance requirements of complex engineering projects.
Smart Images
Figure CN223820819U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of concrete production technology, and in particular to a concrete production line with added short-cut fibers. Background Technology
[0002] With the development of concrete technology, new fibers are often added to concrete raw materials to improve the strength and performance of concrete, such as basalt fiber and carbon fiber. The dispersibility of these fibers in concrete is a technical challenge. Taking carbon fiber as an example, its large aspect ratio and smooth surface make it prone to entanglement and agglomeration during concrete mixing. If it cannot be well dispersed, it will cause uneven fiber distribution within the concrete, leading to localized stress concentration when the concrete is under tension, thus failing to fully utilize the fiber's role in enhancing the concrete's toughness. Current technologies use fiber shortening to prevent entanglement, but during mixing, its relatively light weight and smooth surface make it difficult to fully mix with aggregates, especially with traditional additive methods where the fiber material falls to a single point, making uniform mixing even more difficult, and the situation worsens after adding water. Summary of the Invention
[0003] The technical problem to be solved by this utility model is to provide a concrete production line that adds short-cut fibers, which can mix the short-cut fibers by impact and make them evenly distributed in the concrete.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a concrete production line with added short-cut fibers, including a concrete mixing device and a powder mixing tank. The powder mixing tank is used to mix cement powder and short-cut fibers, and the discharge end of the powder mixing tank is connected to the feed end of the concrete mixing device.
[0005] Preferably, the discharge end of the cement silo is connected to one inlet of the powder mixing tank via a first screw conveyor, and the discharge end of the chopped fiber silo is connected to the other inlet of the powder mixing tank via a second screw conveyor.
[0006] Preferably, the discharge end of the powder mixing tank is connected to the concrete mixing device via a third spiral conveyor.
[0007] Preferably, the concrete mixing device is also connected to the crushed stone inlet.
[0008] Preferably, the crushed stone inlet has a funnel-shaped structure, and the conveyor belt transports materials into the crushed stone inlet.
[0009] Preferably, the concrete mixing device is also connected to a water inlet pipe.
[0010] Preferably, the concrete mixing device is provided with an auxiliary material addition port.
[0011] This invention provides a concrete production line with added chopped fibers. It innovatively incorporates a powder mixing tank where the chopped fibers are first thoroughly mixed with cement powder, changing the traditional process of directly feeding the chopped fibers into the concrete mixing device. Because cement powder has a certain degree of adhesion and fluidity, the chopped fibers can move with the cement ash in the mixing tank, avoiding the problem of difficulty in fully mixing with aggregates due to their light weight and smooth surface. Compared to the traditional method of directly adding fibers to the concrete mixing device, this significantly improves the uniformity of fiber dispersion in the concrete, resulting in a more even distribution of fibers within the concrete. This allows for a more even distribution of stress when the concrete is under tension, avoiding localized stress concentration. Thus, the fiber's role in enhancing the toughness of the concrete is fully utilized, effectively improving the strength and overall performance of the concrete, enhancing the stability of concrete performance, and meeting the performance requirements of more complex engineering projects. Attached Figure Description
[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0013] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation
[0014] like Figure 1 As shown, a concrete production line with added chopped fibers includes a concrete mixing device 1 and a powder mixing tank 2. The powder mixing tank 2 is used to mix cement powder and chopped fibers, and the discharge end of the powder mixing tank 2 is connected to the feed end of the concrete mixing device 1.
[0015] Preferably, the discharge end of the cement silo 3 is connected to one inlet of the powder mixing tank 2 via a first screw conveyor 4, and the discharge end of the chopped fiber silo 5 is connected to the other inlet of the powder mixing tank 2 via a second screw conveyor 6. The first and second screw conveyors are respectively connected to different inlets of the powder mixing tank. The screw conveyors can precisely control the material conveying volume and speed, ensuring that cement powder and chopped fibers enter the powder mixing tank stably according to a set ratio, achieving uniform mixing and providing a guarantee for the subsequent production of high-quality concrete.
[0016] Preferably, the discharge end of the powder mixing tank 2 is connected to the concrete mixing device 1 via a third spiral conveyor 7. This conveying method can continuously and stably transport the mixed materials to the concrete mixing device, and can also avoid segregation of materials during the conveying process, ensuring that the mixing effect of chopped fibers and other materials is not affected, and maintaining the stability of concrete quality.
[0017] Preferably, the concrete mixing device 1 is also connected to the crushed stone inlet 8.
[0018] Preferably, the crushed stone inlet 8 has a funnel-shaped structure, and the conveyor belt 9 conveys materials into the crushed stone inlet 8.
[0019] Preferably, the concrete mixing device 1 is also connected to the water inlet pipe 10.
[0020] Preferably, the concrete mixing device 1 is provided with an auxiliary material addition port 11.
[0021] In operation, the first screw conveyor 4 is activated to transport cement powder from the cement silo 3 to the powder mixing tank 2; the second screw conveyor 6 is activated to transport chopped fibers from the chopped fiber silo 5 to the powder mixing tank 2. In the powder mixing tank 2, the cement powder and chopped fibers are thoroughly mixed. The third screw conveyor 7 is activated to transport the mixed material from the powder mixing tank 2 to the concrete mixing unit 1. Simultaneously, the conveyor belt 9 transports crushed stone through the funnel-shaped crushed stone inlet 8 into the concrete mixing unit 1, where the dry materials are thoroughly mixed. The water inlet pipe 10 is then opened to add water to the mixing unit according to the ratio, and an appropriate amount of auxiliary materials can also be added through the auxiliary material addition port 11. Finally, the concrete mixing unit 1 is activated to thoroughly mix all materials, producing concrete with added chopped fibers.
[0022] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.
Claims
1. A concrete production line with added chopped fibers, comprising a concrete mixing device (1), characterized in that: It also includes a powder mixing tank (2), which is used to mix cement powder with short-cut fibers. The discharge end of the powder mixing tank (2) is connected to the feed end of the concrete mixing device (1).
2. The concrete production line with added short-cut fibers according to claim 1, characterized in that: The discharge end of the cement silo (3) is connected to one inlet of the powder mixing tank (2) through the first screw conveyor (4), and the discharge end of the chopped fiber silo (5) is connected to the other inlet of the powder mixing tank (2) through the second screw conveyor (6).
3. A concrete production line with added chopped fibers according to claim 1 or 2, characterized in that: The discharge end of the powder mixing tank (2) is connected to the concrete mixing device (1) through the third spiral conveyor (7).
4. A concrete production line with added chopped fibers according to claim 1, characterized in that: The concrete mixing device (1) is also connected to the crushed stone inlet (8).
5. A concrete production line with added short-cut fibers according to claim 4, characterized in that: The crushed stone feed inlet (8) has a funnel-shaped structure, and the conveyor belt (9) transports materials into the crushed stone feed inlet (8).
6. A concrete production line with added short-cut fibers according to claim 1, characterized in that: The concrete mixing device (1) is also connected to the water inlet pipe (10).
7. A concrete production line with added short-cut fibers according to claim 1, characterized in that: The concrete mixing device (1) is equipped with an auxiliary material addition port (11).