A fiber concrete separating device

Abstract

The utility model discloses a kind of fibre concrete separating device, wherein, including, shell, the upper end opening's cylindrical structure, inside has separation cavity;The bottom side wall of the shell is equipped with drain port;Dial, with the shell rotation is connected, setting in the bottom of the separation cavity, the rotation center line of the dial coincides with the center line of the separation cavity;Magnet, the magnet is located at the side wall of the separation cavity bottom portion.The utility model can be convenient to separate fibre in after mixing fibre concrete and concrete, it is beneficial to collect fibre.

Description

Technical Field

[0001] This utility model relates to the field of engineering testing technology, specifically to a fiber-reinforced concrete separation device. Background Technology

[0002] Fiber-reinforced concrete is a general term for composite materials composed of fibers and cementitious materials (cement paste, mortar, or concrete). It adds fibers with high tensile strength, high ultimate elongation, and good alkali resistance to ordinary concrete, thereby significantly improving the tensile, flexural, and impact strength, as well as elongation and toughness of concrete.

[0003] Appropriate fiber content can optimize the tensile and toughness properties of concrete. Insufficient fiber content will prevent concrete from meeting design requirements, while excessive content will lead to fiber clumping, reduced workability, and strength loss. By detecting and analyzing the fiber content in concrete mixtures, we can ensure the rational use of fibers in concrete, thereby improving concrete performance and quality, standardizing the application of fiber-reinforced concrete in construction projects, and guaranteeing project quality.

[0004] The fibers in fiber-reinforced concrete mainly include synthetic fibers and steel fibers. How to separate the fibers from the concrete and collect the fibers is one of the important problems that urgently need to be solved in this field. Utility Model Content

[0005] The purpose of this invention is to provide a fiber concrete separation device to address the shortcomings of existing technologies. It facilitates the separation of fibers from concrete after mixing, which is beneficial for fiber collection.

[0006] This utility model provides a fiber-reinforced concrete separation device, which includes, The outer shell is a cylindrical structure with an open top and an internal separation cavity; a drain outlet is provided on the bottom side wall of the outer shell; A dial, rotatably connected to the housing, is located at the bottom of the separation chamber, and the rotation center line of the dial coincides with the center line of the separation chamber; A magnet is located on the side wall at the bottom of the separation chamber.

[0007] In the fiber-reinforced concrete separation device described above, optionally, the dial wheel includes a dial wheel body and dial wheel blades; The dial body is rotatably and sealed to the bottom of the housing; The dial blades are disposed on the outer surface of the dial body.

[0008] The fiber-reinforced concrete separation device described above may optionally include an inner screen, which is annular. The inner screen includes an inner ring, an outer ring, and a mesh sheet; the mesh sheet is annular, with its inner edge connected to the outer wall of the inner ring and its outer edge connected to the outer ring.

[0009] In the fiber-reinforced concrete separation device described above, optionally, the dial body is provided with a column portion and a connecting portion in sequence along the direction away from the bottom of the housing; The connecting portion is used to install the dial blade, and the diameter of the connecting portion gradually decreases in the direction away from the bottom of the housing; the diameter of the larger end of the connecting portion is not greater than the diameter of the cylindrical portion; The distance from the outer edge of the dial blade to the center line of the dial is not greater than the radius of the column portion; the inner ring is sleeved on the column portion and has a clearance fit with the column portion.

[0010] In the fiber-reinforced concrete separation device described above, optionally, the outer ring extends upward by at least 10 centimeters; The magnet can be detachably mounted on the wall at the bottom of the outer casing, or mounted on the inner screen.

[0011] In the fiber-reinforced concrete separation device described above, optionally, the outer ring is provided with mounting grooves for mounting the magnets; there are multiple mounting grooves, and the multiple mounting grooves are evenly distributed circumferentially on the outer ring.

[0012] In the fiber-reinforced concrete separation device described above, optionally, the inner diameter of the inner ring is 1-2 cm larger than the diameter of the column portion; and the outer diameter of the outer ring is 1-2 cm smaller than the diameter of the separation chamber.

[0013] In the fiber-reinforced concrete separation device described above, optionally, a handle is provided on the outer ring; the handle has a U-shaped structure.

[0014] In the fiber-reinforced concrete separation device described above, optionally, a limiting groove is provided on the wall of the separation chamber; The outer ring is provided with a limiting block extending in the radial direction of the outer ring; the limiting block and the limiting groove are slidably connected.

[0015] In the fiber-reinforced concrete separation device described above, optionally, the inner wall of the outer shell and the bottom of the outer shell near the drain outlet are provided with guide grooves.

[0016] Compared to existing technologies, this invention utilizes a rotary wheel within the outer casing to facilitate the pouring of freshly mixed fiber-reinforced concrete into a water-filled separation chamber. The rotation of the rotary wheel creates a vortex, separating the fibers from the concrete. For steel fibers containing iron, whose density is greater than water, the vortex causes them to move outwards, allowing for easy collection using a magnet. For composite fibers, whose density is less than water, they float and are drawn together by the vortex, making them easily retrieved through a screen.

[0017] During operation, water is first poured into the separation chamber, followed by the fiber-reinforced concrete to be separated. A rotating wheel drives the mixture of water and fiber-reinforced concrete, creating a vortex. As the wheel rotates, the fibers separate from the concrete, and the steel fibers containing iron are attracted by a magnet; the lighter composite fibers float and move towards the center of the vortex, where they can be scooped out through a screen. This invention facilitates the separation of fiber-reinforced concrete and the collection of fibers. Attached Figure Description

[0018] Figure 1 This is a three-dimensional sectional view of the present invention; Figure 2 This is a perspective view of the present invention; Figure 3 This is a cross-sectional view of the present invention; Figure 4 This is a three-dimensional cross-sectional view of the outer shell proposed in this utility model; Figure 5 This is a perspective view of the dial proposed in this utility model; Figure 6 This is a perspective view of the inner mesh screen proposed in this utility model; Figure 7 This is a perspective view of the inner mesh screen proposed in this utility model from another angle.

[0019] Explanation of reference numerals in the attached figures: 1-Outer shell, 2-Dial, 3-Magnet, 4-Inner screen, 5-Guide groove.

[0020] 11-Separation chamber, 12-Drain outlet, 13-Limiting groove; 21-Dial body, 22-Dial blade; 211 - Columnar part, 212 - Connecting part; 41-Inner ring, 42-Outer ring, 43-Wire mesh; 421-Mounting slot, 422-Handle, 423-Limit block. Detailed Implementation

[0021] The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0022] In practical applications, the detection of fiber content in concrete mixtures typically involves adding water and stirring in a large container, then collecting the composite fibers using a sieve. For steel fibers, which require a larger seal, the slurry is slowly poured out, and the steel fibers are collected from the remaining sand, gravel, and steel fiber residue. This method is cumbersome and prone to missing steel fibers. This disclosure addresses the issue of steel fiber collection by providing the above-described embodiments.

[0023] Example 1: Please refer to the appendix. Figures 1 to 5 This disclosure proposes a fiber-reinforced concrete separation device, comprising a housing 1, a rotary wheel 2, and a magnet 3. The housing 1 primarily provides a separation chamber 11, while the rotary wheel 2 drives the water within it to agitate, thereby separating and cleaning the fibers. The magnet 3 attracts and collects the steel fibers.

[0024] Specifically, the outer shell 1 is a cylindrical structure with an open top and an internal separation chamber 11. In specific implementations, a cover may or may not be provided on the outer shell 1; this disclosure is not limited to this. When a cover is provided on the outer shell 1, a water inlet communicating with the separation chamber 11 can be provided at the upper end of the outer shell 1. The separation chamber 11 is used to hold the mixed fiber concrete and water to be separated. In practical applications, the volume of the separation chamber 11 is generally required to be more than 10 times the volume of the fiber concrete to be separated. A drain outlet 12 is provided on the bottom side wall of the outer shell 1, and the function of the drain outlet 12 is to drain water, mortar, etc.

[0025] The dial wheel 2 is rotatably connected to the outer casing 1. The function of the dial wheel 2 is to drive the water and fiber-reinforced concrete within the separation chamber 11 to form a vortex, achieving a stirring effect and separating the fibers from the concrete. In a preferred embodiment, the dial wheel 2 is positioned at the bottom of the separation chamber 11, with its rotation center line coinciding with the center line of the separation chamber 11. Thus, when the dial wheel 2 rotates, it causes the mixture of fiber-reinforced concrete and water to form a vortex, continuously generating friction, which facilitates the separation of the fibers from the concrete. Furthermore, within the vortex formed by the dial wheel 2, the composite fibers, which have a density less than water, float and move towards the center of the water surface, facilitating their collection; the steel fibers, which have a density greater than water, sink to the bottom and diffuse outwards. Through the rotation of the dial wheel 2, the composite fibers and steel fibers exhibit these characteristics, facilitating their separate collection.

[0026] To facilitate the collection of steel fibers, the magnet 3 is located on the side wall at the bottom of the separation chamber 11. Specifically, the magnet 3 can be detachably mounted on the bottom wall of the outer casing 1. Generally, the material used for steel fibers is mostly steel containing iron, which can be collected by the magnet 3. Because the steel fibers gather towards the outer side of the bottom in the vortex formed by the dial 2, the magnet 3 can attract them. Attracting the steel fibers with the magnet 3 has at least two advantages: firstly, it facilitates the concentration of the steel fibers; secondly, because the steel fibers are attracted by the magnet 3, the velocity difference between the steel fibers and objects such as sand and gravel is not attracted, which is beneficial for the separation of the steel fibers from the concrete.

[0027] It should be noted that the magnet 3 referred to in this disclosure can be either a permanent magnet or an electromagnet. When the magnet 3 is an electromagnet, it can be fixed to the outer casing 1. The structure and implementation of the electromagnet are not the focus of this disclosure, and those skilled in the art can implement them, so they will not be described in detail here. When the magnet 3 is a permanent magnet, a strong magnet is preferred. The detachable connection of the magnet 3 facilitates the removal of the magnet 3 together with the steel fiber.

[0028] It should be noted that the dial 2 in this disclosure is driven by a motor. The method of driving the dial 2 by a motor is feasible for those skilled in the art and will not be described in detail here.

[0029] In practical use, first, add an appropriate amount of water to the separation chamber 11 according to the volume of the fiber-reinforced concrete to be tested; for example, the amount of water can be 8 to 10 times the volume of the fiber-reinforced concrete. Start the dial wheel 2 to add fiber-reinforced concrete to the separation chamber 11; control the dial wheel 2 in a forward, reverse, or alternating forward and reverse manner for a certain period of time, such as 5-15 minutes; after this process, the fibers and concrete can be separated. Then, control the dial wheel to rotate at a lower speed, causing the liquid in the separation chamber 11 to form a vortex. At this time, the composite fibers float and converge towards the center of the separation chamber 11, while the steel fibers sink and converge towards the periphery of the separation chamber 11, and concentrate towards the location of the magnet 3. Because the composite fibers float and concentrate in the center of the separation chamber 11, they are easily retrieved directly through a screen. After retrieving the composite fibers, the magnet 3 can be directly removed along with the adsorbed steel fibers, or the magnet 3 and steel fibers can be removed together after draining the water.

[0030] In practical applications, to drive the mixture in the separation chamber 11 to rotate and achieve a stirring effect, the dial 2 includes a dial body 21 and dial blades 22; the dial body 21 is rotatably and sealingly connected to the bottom of the outer casing 1; the dial blades 22 are disposed on the outer surface of the dial body 21. Thus, when the dial body 21 rotates, the dial blades 22 drive the water to form a vortex.

[0031] Example 2: This embodiment is a further improvement based on Embodiment 1. The similarities will not be repeated. Only the differences will be explained below.

[0032] In Example 1, although separation between the fiber and the concrete was achieved, the presence of a significant amount of mud and sand covering the magnet 3 caused the steel fiber to easily detach during removal, resulting in incomplete removal. Therefore, this example provides further improvements.

[0033] Please refer to Figures 1 to 7 In this embodiment, an inner mesh screen 4 is added, which is annular. Specifically, the inner mesh screen 4 includes an inner ring 41, an outer ring 42, and a mesh sheet 43; the mesh sheet 43 is annular, with its inner edge connected to the outer wall of the inner ring 41, and its outer edge connected to the outer ring 42. In this embodiment, the function of the inner mesh screen 4 is to filter out smaller sand particles to prevent the steel fibers from falling off during removal due to sand particles covering them. That is, larger stones and steel fibers can be removed through the inner mesh screen 4.

[0034] Specifically, in use, first place the inner screen 4 into the separation chamber 11, pass the dial 2 through the inner hole of the inner screen, then add water and fiber concrete as in Example 1, then stir, and scoop out the composite fiber; then take out the inner screen 4, at this time, the inner screen 4 contains stones and steel fibers. Then separate the steel fibers from it.

[0035] To prevent steel fibers from falling between the inner hole of the inner screen 4 and the dial wheel 2, and between the inner screen and the outer shell 1, further design is required for the inner screen 4. Specifically, the dial wheel body 21 has a column portion 211 and a connecting portion 212 arranged sequentially along the direction away from the bottom of the outer shell 1. The connecting portion 212 is used to install the dial wheel blade 22, and the diameter of the connecting portion 212 gradually decreases along the direction away from the bottom of the outer shell 1; the diameter of the larger end of the connecting portion 212 is not greater than the diameter of the column portion 211. The distance from the outer edge of the dial wheel blade 22 to the center line of the dial wheel 2 is not greater than the radius of the column portion 211; the inner ring 41 is fitted onto the column portion 211 and has a clearance fit with the column portion 211. The inner hole diameter of the inner ring 41 is 1-2 cm larger than the diameter of the column portion 211; the outer diameter of the outer ring 42 is 1-2 cm smaller than the diameter of the separation chamber 11. Thus, since the side of the connecting part 212 is inclined, when a steel fiber falls onto the connecting part 212 from above, it will fall down the inclined surface of the connecting part 212 between the inner ring 41 and the outer ring 42. On the other hand, in order to prevent the steel fiber from falling between the outer ring 42 and the wall of the separation chamber 11, the outer ring 42 extends upward by at least 10 centimeters.

[0036] In the above method, if the mesh size of the inner screen 4 is made smaller, the sand particles are less likely to be filtered out, and the steel fibers are less likely to be picked out after the inner screen 4 is removed. If the mesh size of the inner screen 4 is made larger, the steel fibers are more likely to leak out, resulting in incomplete collection of steel fibers. Therefore, in this embodiment, a magnet 3 is placed on the inner screen 4 to prevent the steel fibers from falling out when they are removed. This allows for a larger mesh size in the inner screen 4; specifically, the mesh size can be slightly larger than the diameter of the steel fibers.

[0037] To prevent the steel fibers from falling out when the inner screen 4 is removed, in a preferred embodiment, a magnet can be mounted on the inner screen 4. That is, during use, the inner screen 4 is detachably connected to the outer casing 1. Since the magnet 3 is mounted on the inner screen 4, it is lifted along with the inner screen 4, thus preventing the steel fibers from falling out by utilizing the attraction of the magnet 3. Simultaneously, after the inner screen 4 is removed, it can be flipped up to separate stones and other debris from it.

[0038] The above structure can already screen out steel fibers relatively accurately, but due to the presence of magnet 3, it is still necessary to remove the steel fibers one by one from the inner screen 4. Therefore, this embodiment makes a further improvement: the outer ring 42 is provided with mounting grooves 421 for mounting the magnet 3; there are multiple mounting grooves 421, and these grooves are evenly distributed circumferentially on the outer ring 42. Thus, when it is necessary to remove the steel fibers from the inner screen 4, the inner screen 4 can be flipped over after removing the magnet 3.

[0039] In some implementations, a handle 422 is provided on the outer ring 42 to facilitate the handling of the inner screen 4; the handle 422 has a U-shaped structure. In use, the handle 422 can be used to create a certain distance between the inner screen 4 and the bottom of the separation chamber 11, thereby allowing more sand particles to be screened out.

[0040] In some implementations, the wall of the separation cavity 11 is provided with a limiting groove 13; the limiting groove 13 is a vertically arranged groove, and the outer ring 42 is provided with a limiting block 423 extending in the radial direction of the outer ring 42; the limiting block 423 is slidably connected to the limiting groove 13. Specifically, there may be two limiting grooves 13, which are evenly distributed in the circumferential direction of the separation cavity 11.

[0041] To facilitate the smooth discharge of particles, guide grooves 5 are provided on the inner wall of the outer shell 1 and at the bottom of the outer shell 1 near the drain outlet 12. The bottom of the separation chamber 11 is connected to the side wall by a rounded transition. When discharging sewage, the dial 2 can be activated first to form a vortex, and then the drain outlet 12 can be opened. This helps to discharge sand and other debris that have settled at the bottom.

[0042] The basic principles of this utility model have been described above with reference to specific embodiments. However, it should be noted that the advantages, benefits, and effects mentioned in this utility model are merely examples and not limitations, and should not be considered as essential features of each embodiment of this utility model. Furthermore, the specific details disclosed above are for illustrative and facilitative purposes only, and are not limitations. These details do not limit the utility model from being implemented using the aforementioned specific details.

[0043] The block diagrams of the devices, apparatuses, equipment, and systems involved in this utility model are merely illustrative examples and are not intended to require or imply that they must be connected, arranged, or configured in the manner shown in the block diagrams. As those skilled in the art will recognize, these devices, apparatuses, equipment, and systems can be connected, arranged, and configured in any manner. Words such as “comprising,” “including,” “having,” etc., are open-ended terms meaning “including but not limited to,” and are used interchangeably with them. The terms “or” and “and” as used herein refer to the terms “and / or,” and are used interchangeably with them unless the context clearly indicates otherwise. The term “such as” as used herein refers to the phrase “such as but not limited to,” and is used interchangeably with it.

[0044] Additionally, as used herein, the "or" used in a list of items beginning with "at least one" indicates a separate list, such that a list of, for example, "at least one of A, B, or C" means A or B or C, or AB or AC or BC, or ABC (i.e., A and B and C). Furthermore, the word "exemplary" does not imply that the described example is preferred or better than other examples.

[0045] It should also be noted that in the system and method of this utility model, the components or steps can be disassembled and / or recombined. These disassemblies and / or recombinations should be considered as equivalent solutions of this utility model.

[0046] Various changes, substitutions, and modifications can be made to the technology described herein without departing from the teachings defined by the appended claims. Furthermore, the scope of the claims of this utility model is not limited to the specific aspects of the processes, machines, manufacturing processes, events, means, methods, and actions described above. Currently existing or later-developed processes, machines, manufacturing processes, events, means, methods, or actions that perform substantially the same function or achieve substantially the same result as the corresponding aspects described herein can be utilized. Therefore, the appended claims include such processes, machines, manufacturing processes, events, means, methods, or actions within their scope.

[0047] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein can be applied to other aspects without departing from the scope of the present invention. Therefore, the present invention is not intended to be limited to the aspects shown herein, but rather to be carried out within the widest scope consistent with the principles and novel features disclosed herein.

[0048] The above description has been given for illustrative and descriptive purposes. Furthermore, this description is not intended to limit the embodiments of the present invention to the forms disclosed herein. Although numerous exemplary aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, alterations, additions, and sub-combinations thereof.

Claims

1. A fiber-reinforced concrete separation device, characterized in that, include, The outer shell (1) is a cylindrical structure with an open top and a separation cavity (11) inside; a drain outlet (12) is provided on the bottom side wall of the outer shell (1). A dial (2) is rotatably connected to the outer casing (1) and is located at the bottom of the separation chamber (11). The rotation center line of the dial (2) coincides with the center line of the separation chamber (11). Magnet (3), which is located on the side wall at the bottom of the separation chamber (11).

2. The fiber-reinforced concrete separation device according to claim 1, characterized in that, The dial (2) includes a dial body (21) and a dial blade (22); The dial body (21) is rotatably and sealed to the bottom of the housing (1); The dial blade (22) is disposed on the outer surface of the dial body (21).

3. The fiber-reinforced concrete separation device according to claim 2, characterized in that, It also includes an inner screen (4), which is annular; The inner screen (4) includes an inner ring (41), an outer ring (42) and a mesh (43); the mesh (43) is annular, the inner edge of the mesh (43) is connected to the outer wall of the inner ring (41), and the outer edge of the mesh (43) is connected to the outer ring (42).

4. The fiber-reinforced concrete separation device according to claim 3, characterized in that, The dial body (21) is provided with a column part (211) and a connecting part (212) in sequence along the direction away from the bottom of the outer shell (1). The connecting part (212) is used to install the dial blade (22), and the diameter of the connecting part (212) gradually decreases in the direction away from the bottom of the outer casing (1); the diameter of the larger end of the connecting part (212) is not greater than the diameter of the column part (211); The distance from the outer edge of the dial blade (22) to the center line of the dial (2) is not greater than the radius of the column part (211); the inner ring (41) is sleeved on the column part (211) and is clearance-fitted with the column part (211).

5. The fiber-reinforced concrete separation device according to claim 3, characterized in that, The outer ring (42) extends upward by at least 10 centimeters; The magnet (3) can be detachably installed on the wall at the bottom of the outer casing (1) or on the inner screen (4).

6. The fiber-reinforced concrete separation device according to claim 5, characterized in that, The outer ring (42) is provided with mounting grooves (421) for mounting the magnet (3); there are multiple mounting grooves (421), and the multiple mounting grooves (421) are evenly distributed on the outer ring (42) in the circumferential direction.

7. The fiber-reinforced concrete separation device according to claim 4, characterized in that, The inner diameter of the inner ring (41) is 1-2 cm larger than the diameter of the column part (211); the outer diameter of the outer ring (42) is 1-2 cm smaller than the diameter of the separation cavity (11).

8. The fiber-reinforced concrete separation device according to claim 3, characterized in that, The outer ring (42) is provided with a handle (422); the handle (422) is a U-shaped structure.

9. The fiber-reinforced concrete separation device according to claim 3, characterized in that, The wall of the separation chamber (11) is provided with a limiting groove (13); The outer ring (42) is provided with a limiting block (423) extending in the radial direction of the outer ring (42); the limiting block (423) is slidably connected to the limiting groove (13).

10. The fiber-reinforced concrete separation device according to any one of claims 1-9, characterized in that, The inner wall of the outer shell (1) and the bottom of the outer shell (1) near the drain outlet (12) are provided with guide grooves (5).

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