A super-early-strength floor repairing material stirring device

Abstract

The utility model relates to floor patching material stirring technical field, and disclose a kind of ultra-early strength floor patching material stirring device, including stirring tank and rotatingly connected in the stirring tank inner chamber stirring shaft;Stirring shaft surface is fixedly connected with multiple stirring vane, and the top of stirring vane is provided with arc groove, and one end is equipped with inclined surface, and stirring vane overall presents half-round pipe structure;Multiple stirring vanes are distributed along the axial screw-up of stirring shaft, and adjacent stirring vanes are set apart angle in circumferential direction, and the stirring vane design of " arc groove forms half-round pipe structure", utilize the inner concave surface of arc groove and directly wrap and hold material, cooperate blade and distribute along the axial screw-up and circumferential set apart angle, form three-dimensional flow field of circumferential rotation, axial circulation, radial exchange, this flow field can cover all space in stirring tank, eliminate the dead zone of shaft end and tank wall of traditional device, ensure that aggregate in high solid content material and cementing material contact fully.

Description

Technical Field

[0001] This utility model relates to the field of floor repair material mixing technology, specifically to an ultra-early strength floor repair material mixing device. Background Technology

[0002] Ultra-early strength floor repair materials are floor repair materials that harden quickly and have high early strength. These materials are widely used in the repair and construction of industrial floors and are especially suitable for applications requiring rapid restoration. To ensure that these materials can be mixed evenly, a mixing device is usually used for proportioning and mixing. Traditional mixing devices mostly use straight blades or simple spiral blades. When mixing ultra-early strength floor repair materials, due to the high solids content of the materials, a "blind zone" is easily formed near the mixing shaft, resulting in uneven mixing of materials. In view of this, the present invention solves the above-mentioned technical problems by proposing an ultra-early strength floor repair material mixing device. Utility Model Content

[0003] To address the shortcomings of the aforementioned background technology, this utility model provides a technical solution for an ultra-early strength floor repair material mixing device. Firstly, through the design of the mixing blades with an "arc-shaped groove forming a semi-circular tube structure," the concave curved surface of the arc-shaped groove directly wraps around and holds the material. Combined with the spiral ascent of the blades along the axis and the circumferentially staggered angle distribution, a three-dimensional flow field is formed, characterized by circumferential rotation, axial circulation, and radial exchange. This flow field covers the entire space inside the mixing tank, eliminating dead zones at the shaft end and tank wall of traditional devices, ensuring sufficient contact between aggregates and cementitious materials in high-solids-content materials. Secondly, the arc-shaped groove serves as the core material-holding structure, through the curved surface... The binding action firmly encloses the material, preventing it from slipping off the sides of the blades under centrifugal force. At the same time, the inclined cut surface at one end of the blade reduces the cutting resistance, further enhancing the gripping and driving effect on the material pile, ensuring that all materials can be continuously driven by the blades to participate in the mixing. This is suitable for materials with high viscosity and high solids content. Finally, through the two-stage defoaming design of "bubble filter plate and defoaming ring", the honeycomb holes of the bubble filter plate cut large bubbles, and the serrated teeth of the defoaming ring shear tiny bubbles through high-speed rotation. Combined with the directional pushing of the mixing blades, the material flows fully through the defoaming area, significantly reducing bubble residue and improving the density of the repair material.

[0004] This utility model provides the following technical solution: an ultra-early strength floor repair material mixing device, including a mixing tank and a mixing shaft rotatably connected to the inner cavity of the mixing tank; Multiple stirring blades are fixedly connected to the surface of the stirring shaft. The top of each stirring blade has an arc-shaped groove, and one end has an inclined cut surface. The stirring blade as a whole has a semi-circular tube structure. The plurality of stirring blades are spirally distributed along the stirring shaft axis, and adjacent stirring blades are staggered at an angle in the circumferential direction; A defoaming ring is embedded in the middle of the surface of the stirring shaft, and multiple serrations are fixedly connected to the surface of the defoaming ring. A bubble filter plate is provided in the inner cavity of the mixing tank below the stirring shaft, and the top of the bubble filter plate has multiple honeycomb holes.

[0005] As a preferred embodiment of this utility model, the bubble filter plate is provided with a gap between itself and the inner wall of the mixing tank, the bubble filter plate is fixedly connected to the inner wall of the mixing tank through the connecting column, and the honeycomb holes are distributed in a ring array.

[0006] As a preferred embodiment of this utility model, the serrations are triangular in shape and arranged in a ring array on the surface of the defoaming ring. The spiral upward direction of the stirring blade matches the rotation direction of the defoaming ring.

[0007] As a preferred embodiment of this utility model, one end of the stirring shaft is connected to a driving component, and the driving component is connected to one end of the stirring shaft via a coupling.

[0008] As a preferred embodiment of this utility model, a feed pipe is fixedly connected to one end of the mixing tank, and a discharge pipe is fixedly connected to the other end of the mixing tank. An opening and closing valve is provided in the inner cavity of the discharge pipe.

[0009] As a preferred embodiment of this utility model, a guide slope is provided at the bottom of the inner cavity of the mixing tank, and the guide surface of the guide slope corresponds to the position of the discharge pipe.

[0010] As a preferred embodiment of this invention, the inclined cross-section of the stirring blade is set at an angle to the extending direction of the stirring blade.

[0011] As a preferred technical solution of this utility model, the curvature of the semi-circular tube structure of the stirring blade is adapted to the curvature of the inner wall of the mixing tank, so that when the stirring blade rotates, its edge maintains a preset gap with the inner wall of the mixing tank, avoiding dead corners of materials.

[0012] Compared with the prior art, the present invention has the following beneficial effects: In existing technologies, straight blades or simple spiral blades are prone to creating a "blind zone" in material flow near the stirring shaft due to structural limitations. This results in uneven mixing of aggregates and cementitious materials in high-solids-content materials. This device uses a stirring blade design with an "arc groove forming a semi-circular tube structure" to directly wrap and hold the material with the concave surface of the arc groove. Combined with the spiral ascent of the blades along the shaft and the distribution of staggered angles around the circumference, a three-dimensional flow field is formed that rotates circumferentially, circulates axially, and exchanges radially. This flow field can cover the entire space inside the mixing tank, eliminating the dead zones at the shaft end and tank wall of traditional devices, and ensuring full contact between aggregates and cementitious materials in high-solids-content materials.

[0013] The arc-shaped groove of this device serves as the core material-holding structure. Through the constraint of the curved surface, it firmly wraps the material and prevents it from slipping off the sides of the blades under centrifugal force. At the same time, the inclined cut surface at one end of the blade reduces the cutting resistance and further enhances the gripping and driving effect on the material pile, ensuring that all materials can be continuously driven by the blades to participate in the mixing, which is suitable for the high viscosity and high solids content of the materials.

[0014] This device employs a two-stage defoaming design consisting of a bubble filter plate and a defoaming ring. The honeycomb pores of the bubble filter plate cut off large bubbles, while the serrated edges of the defoaming ring shear tiny bubbles through high-speed rotation. Combined with the directional pushing of the stirring blades, the material flows fully through the defoaming zone, significantly reducing bubble residue and improving the density of the repair material. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a half-sectional view of the present invention; Figure 3 This is an exploded view of the present invention; Figure 4 This is a schematic diagram of the bubble filter plate structure of this utility model.

[0016] In the diagram: 1. Mixing tank; 101. Mixing shaft; 2. Mixing blade; 201. Arc groove; 202. Inclined section; 3. Defoaming ring; 301. Serrated edge; 4. Bubble filter plate; 401. Honeycomb pores; 5. Connecting column; 6. Drive component; 7. Feed pipe; 701. Discharge pipe; 8. Guide slope. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figure 1-4 As shown, an ultra-early strength floor repair material mixing device includes a mixing tank 1 and a mixing shaft 101 rotatably connected to the inner cavity of the mixing tank 1; Multiple stirring blades 2 are fixedly connected to the surface of the stirring shaft 101. The top of the stirring blade 2 is provided with an arc-shaped groove 201 and one end is provided with an inclined cut surface 202. The stirring blade 2 is in the form of a semi-circular tube structure. An arc-shaped groove 201 is opened at the top of the stirring blade 2. The arc-shaped groove 201 extends along the extension direction of the stirring blade 2, so that the stirring blade 2 naturally forms a semi-circular tube structure. The concave curved surface of the arc-shaped groove 201 directly constitutes the "material-holding cavity" of the semi-circular tube. Its size is adapted to the characteristics of ultra-early strength materials (containing more than 30% solid particles). When rotating, it can hold more than 80% of the material in contact with each stirring blade 2, preventing high-viscosity materials from slipping off from both sides of the stirring blade 2 due to centrifugal force. The inclined cut surface 202 at one end of the stirring blade 2 forms an angle of 30°-45° (preferably 35°) with the extension direction. This angle allows the stirring blade 2 to cut into the material pile in an "oblique cutting manner" when rotating, which reduces the impact resistance by 30% compared to the vertical cut surface. At the same time, the axial component force of the inclined cut surface 202 is used to push the material caught by the arc groove 201 toward the center of the mixing tank 1, thereby enhancing the radial flow. Multiple stirring blades 2 are spirally distributed along the stirring shaft 101, and adjacent stirring blades 2 are staggered at an angle in the circumferential direction. The spiral distribution and staggered angles allow adjacent blades to be spaced apart along the axial direction, with a spiral helix angle of 15°-20°; and a circumferential stagger of 20°-30° (e.g., the first stirring blade 2 is at 0°, the second stirring blade 2 is at 25°, the third stirring blade 2 is at 50°, and the fourth stirring blade 2 is at 75°). This design, combined with the material-collecting function of the arc-shaped groove 201, creates a triple force: Circumferential: The arc-shaped groove 201 holds the material and rotates synchronously with the stirring blade 2 to avoid "slipping" and achieve preliminary mixing; Axial: The spiral trajectory propels the material up and down through the "lifting effect" of the arc groove 201, preventing stratification; Radial: The curvature of the semi-circular tube is adapted to the tank wall of mixing tank 1. The edge of the mixing blade 2 leaves a gap of 2-5mm with the tank wall. The arc groove 201 alternately "scoops up" the material on the tank wall and the central material of mixing tank 1, forming a radial exchange flow and eliminating more than 90% of the traditional mixing blind zone. A defoaming ring 3 is embedded in the middle of the surface of the stirring shaft 101, and multiple serrations 301 are fixedly connected to the surface of the defoaming ring 3; A bubble filter plate 4 is provided in the inner cavity of the mixing tank 1 below the stirring shaft 101, and multiple honeycomb holes 401 are opened through the top of the bubble filter plate 4. The bubble filter plate 4 has a gap with the inner wall of the mixing tank 1. The bubble filter plate 4 is fixedly connected to the inner wall of the mixing tank 1 through the connecting column 5. The honeycomb holes 401 are distributed in a ring array. The bubble filter plate 4 has regular hexagonal honeycomb holes 401. When the material flows through the bubble filter plate 4, the gas-containing material pushed by the arc groove 201 must pass through the honeycomb holes 401. Large bubbles are cut and broken by the edge of the honeycomb holes 401, so as to avoid large bubbles forming voids after the material hardens. The gap between the bubble filter plate 4 and the inner wall of the mixing tank 1 allows the material to flow through the edge, preventing the bubble filter plate 4 from clogging, and also allows the turbulence at the gap to further break up the bubbles. The serrations 301 are triangular in shape and are arranged in a ring array on the surface of the defoaming ring 3. The spiral upward direction of the stirring blade 2 matches the rotation direction of the defoaming ring 3. The serrations 301 adopt an isosceles triangular structure and are distributed around the circumference of the defoaming ring 3. When the stirring shaft 101 rotates, it drives the serrations 301 to generate local shear force, which can break up tiny bubbles. The stirring blade 101 rotates counterclockwise (viewed from the top of the mixing tank 1 looking down), and the debubbling ring 3 rotates counterclockwise simultaneously, so that when the material is pushed upward by the stirring blade 101, it flows through the area of ​​the saw teeth 301, prolonging the contact time between the material and the saw teeth 301 and enhancing the shearing effect. One end of the stirring shaft 101 is connected to a driving component 6, and the driving component 6 is connected to one end of the stirring shaft 101 via a coupling. A feed pipe 7 is fixedly connected to one end of the mixing tank 1, and a discharge pipe 701 is fixedly connected to the other end of the mixing tank 1. An opening and closing valve is provided in the inner cavity of the discharge pipe 701. A guide slope 8 is provided at the bottom of the inner cavity of the mixing tank 1, and the guide surface of the guide slope 8 corresponds to the position of the discharge pipe 701; The guide slope 8 has an angle of 15°-20° with the horizontal plane, and the lowest point of the slope is aligned with the inlet of the discharge pipe 701, so that the material gathers towards the discharge port 701 under the action of gravity and the thrust of the stirring blade 101. The inclined cross-section 202 of the stirring blade 2 is set at an angle to the extension direction of the stirring blade 2; The angle of the inclined cut surface 202 is 30°-45°, which not only ensures the "grabbing force" when the arc groove 201 catches the material, but also guides part of the material to the arc groove 201 of the adjacent stirring blade 2 through the diversion effect of the inclined cut surface 202, forming relay stirring and improving the overall mixing efficiency. The curvature of the semi-circular tube structure of the stirring blade 2 is adapted to the curvature of the inner wall of the mixing tank 1, so that when the stirring blade 2 rotates, its edge maintains a preset gap with the inner wall of the mixing tank 1 to avoid dead corners of materials. The gap between the edge of the stirring blade 2 and the wall of the mixing tank 1 not only prevents the stirring blade 2 from scraping the wall of the mixing tank 1 (reducing wear), but also removes the material adhering to the wall of the mixing tank 1 through the "squeezing flow" at the gap, preventing the ultra-early strength material from solidifying prematurely on the wall of the mixing tank 1.

[0019] After the ultra-early strength floor repair material enters the mixing tank 1 through the feed pipe 7, the drive component 6 drives the mixing shaft 101 to rotate through the coupling. Multiple mixing blades 2 fixed on the surface of the mixing shaft 101 rotate synchronously with the shaft. The mixing blades 2 form a semi-circular tube structure through the arc groove 201 opened on the top. The depth and width of the arc groove 201 are adapted to the high viscosity characteristics of the ultra-early strength material, so that it naturally forms an inwardly concave semi-circular tube shape. The arc groove 201 itself is the core structure for holding the material: when rotating, the concave surface of the arc groove 201 can directly "wrap" the high solids content repair material (including sand, cement-based cementitious materials, etc.). The constraint effect of the curved surface prevents the material from slipping off the sides of the blade under centrifugal force, ensuring that the material is always driven by the blade to participate in the mixing. At the same time, the inclined cut surface 202 at one end of the mixing blade 2 can reduce the resistance when cutting into the material. Combined with the material holding effect of the arc groove 201, it further enhances the ability to grab and drive the material pile. Multiple stirring blades 2 are spirally distributed along the stirring shaft 101, and adjacent blades are staggered at an angle in the circumferential direction. This design, combined with the material-collecting function of the arc-shaped groove 201, allows the material to be subjected to forces in three directions simultaneously. Circumferential force: Under the direct support of the arc-shaped groove 201, the material rotates synchronously with the stirring blade 2, avoiding "slipping" due to the viscosity of the material and achieving preliminary mixing; Axial force: The spiral upward trajectory, combined with the arc groove 201, "lifts and pushes" the material, driving the material to circulate up and down along the stirring shaft 101, preventing the upper and lower layers of material from separating due to gravity. Radial force: The semi-circular tube structure formed by the arc groove 201 of the stirring blade 2 has a curvature that matches the inner wall of the mixing tank 1. The preset gap between the edge and the tank wall, combined with the material release rhythm of the arc groove 201, can "scoop" the material near the tank wall towards the center, while "throwing" the material in the center towards the tank wall, forming a continuous radial material exchange. The three elements combine to form a three-dimensional stirring flow field without dead angles. Under the continuous action of the arc-shaped groove 201, the aggregate and cementitious material in the high solids content material can fully contact and mix evenly. Large bubbles generated during the mixing process flow with the material to the lower part of the mixing tank 1. When passing through the bubble filter plate 4, they must pass through the honeycomb holes 401 at the top. The large bubbles are cut and broken by the edges of the holes. At the same time, the gap between the bubble filter plate 4 and the inner wall of the mixing tank 1 allows the material to pass through, avoiding blockage. The annular array distribution of the honeycomb holes 401 ensures uniform material distribution and improves the bubble filtration efficiency. After primary filtration, the remaining microbubbles are carried by the stirring blades 2 (pushed by the arc-shaped groove 201) to the middle of the mixing tank 1. When the material flows through the defoaming ring 3 area, the triangular serrations 301 on the surface of the defoaming ring 3 generate strong shearing force as the stirring shaft 101 rotates at high speed. Since the serrations 301 are arranged in a ring array and the spiral direction of the stirring blades 2 matches the rotation direction of the defoaming ring 3, the material is forced to pass through the gaps between the serrations 301, and the microbubbles are completely torn apart, thus achieving secondary defoaming. The ultra-early strength repair material, after being mixed and defoamed, is carried by the stirring blade 2 (arc groove 201 continuously pushes) and gathers along the guide slope 8 at the bottom of the mixing tank 1 towards the discharge pipe 701. It is discharged through the control of the opening and closing valve. The guide slope 8 is designed to prevent material from remaining at the bottom of the tank and is adapted to the rapid solidification characteristics of the material.

[0020] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Additionally, in the accompanying drawings of this utility model, the fill patterns are merely for distinguishing layers and do not constitute any other limitation.

[0021] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mixing device for ultra-early strength floor repair materials, comprising: A mixing tank (1) and a stirring shaft (101) rotatably connected to the inner cavity of the mixing tank (1). The feature is that: a plurality of stirring blades (2) are fixedly connected to the surface of the stirring shaft (101), the top of the stirring blade (2) is provided with an arc groove (201), and one end is provided with an inclined cut surface (202), and the stirring blade (2) is in the form of a semi-circular tube structure. The plurality of stirring blades (2) are spirally distributed along the axial direction of the stirring shaft (101), and adjacent stirring blades (2) are staggered at an angle in the circumferential direction; A defoaming ring (3) is embedded in the middle of the surface of the stirring shaft (101), and a plurality of serrations (301) are fixedly connected to the surface of the defoaming ring (3). A bubble filter plate (4) is provided in the inner cavity of the mixing tank (1) below the stirring shaft (101), and a plurality of honeycomb holes (401) are opened through the top of the bubble filter plate (4).

2. The mixing device for ultra-early strength floor repair material according to claim 1, characterized in that: The bubble filter plate (4) has a gap with the inner wall of the mixing tank (1). The bubble filter plate (4) is fixedly connected to the inner wall of the mixing tank (1) through the connecting column (5). The honeycomb holes (401) are distributed in a ring array.

3. The mixing device for ultra-early strength floor repair material according to claim 1, characterized in that: The serrations (301) are triangular in shape and are arranged in a ring array on the surface of the defoaming ring (3). The spiral upward direction of the stirring blade (2) matches the rotation direction of the defoaming ring (3).

4. The mixing device for ultra-early strength floor repair material according to claim 1, characterized in that: One end of the stirring shaft (101) is connected to a driving component (6), and the driving component (6) is connected to one end of the stirring shaft (101) via a coupling.

5. The mixing device for ultra-early strength floor repair material according to claim 1, characterized in that: One end of the mixing tank (1) is fixedly connected to a feed pipe (7), and the other end of the mixing tank (1) is fixedly connected to a discharge pipe (701). The discharge pipe (701) is equipped with an opening and closing valve in its inner cavity.

6. The mixing device for ultra-early strength floor repair material according to claim 5, characterized in that: The bottom of the inner cavity of the mixing tank (1) is provided with a guide slope (8), and the guide surface of the guide slope (8) corresponds to the position of the discharge pipe (701).

7. The mixing device for ultra-early strength floor repair material according to claim 1, characterized in that: The inclined section (202) of the stirring blade (2) is set at an angle to the extension direction of the stirring blade (2).

8. The mixing device for ultra-early strength floor repair material according to claim 1, characterized in that: The curvature of the semi-circular tube structure of the stirring blade (2) is adapted to the curvature of the inner wall of the mixing tank (1), so that when the stirring blade (2) rotates, its edge maintains a preset gap with the inner wall of the mixing tank (1) to avoid dead corners of materials.

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