Dynamic mixing core mixing device for two-component grouting fluid

Abstract

The utility model provides a double-component grouting fluid dynamic mixing core mixing device which comprises a mixer shell, at least one feeding port is formed in the top of the side wall of the mixer shell, the center line of the feeding port and the center line of the mixer shell are staggered, and a discharging port is formed in the bottom of the mixer shell; the stirring shaft is rotationally mounted in the middle of an inner cavity of the mixer shell; a spiral blade is arranged on the stirring shaft in a surrounding manner; a plurality of push plates are uniformly distributed at the top of the stirring shaft in the circumferential direction. When materials are fed into the mixer shell from the feeding port, the materials can be directly pushed to the push plate area to provide pushing force to push the push plate to rotate, then the stirring shaft is driven to rotate, different materials are mixed under pushing of the spiral blade, mixed slurry is discharged from the discharging port, power for driving the stirring shaft to rotate is provided through conveying of the materials, and the stirring shaft is driven to rotate. No external power source such as a motor is needed, and the device can stop at any time when used and is low in cost and high in efficiency.

Description

Technical Field

[0001] This utility model relates to the field of road grouting construction technology, specifically to a dynamic mixing core mixing device for two-component grouting liquid. Background Technology

[0002] In recent years, with economic development, passenger and freight traffic and load have increased dramatically, leading to increasingly serious damage to some national and provincial highways and a higher frequency of pavement distress. Studies show that, influenced by factors such as construction quality, traffic volume, operational load, and the duration of operation, various road distresses are currently experiencing a concentrated outbreak. Among these, interlayer voids pose a significant threat, often occurring between the base course and subbase course, or between the base course and subgrade. If not repaired promptly, the void volume will gradually increase, further damaging the pavement structure under traffic loads. Therefore, simply repairing the surface layer is insufficient to improve road conditions; it is essential to repair the internal voids and enhance the load-bearing capacity of the base course and subgrade.

[0003] Developing advanced grouting equipment can play a significant role in improving grouting processes. Existing two-component grouting equipment often uses counter-flushing mixers or static mixers. Counter-flushing mixers lack an internal mixing core, and the mixing distance is too short. This results in short mixing times and poor mixing effects for the two-component grout. Static mixers, on the other hand, have a non-rotating internal core, which reduces the flow rate of the mixed grout and affects grouting efficiency. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention proposes a dynamic mixing core mixing device for two-component grouting fluid, which can quickly and efficiently mix the grouting fluid.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] This utility model provides a dynamic mixing core mixing device for a two-component grouting liquid, comprising:

[0007] The mixer housing has at least one feed inlet on the top of its side wall, and the center line of the feed inlet is offset from the center line of the mixer housing. The bottom of the mixer housing has a discharge outlet.

[0008] A stirring shaft is rotatably mounted in the middle of the inner cavity of the mixer housing. The stirring shaft is surrounded by spiral blades and has multiple push plates evenly distributed on its top circumference.

[0009] Furthermore, there are two feed inlets, and the feeding direction of both feed inlets is in the same direction as the clockwise / counterclockwise rotation of the stirring shaft.

[0010] Furthermore, the side wall of the mixer housing is provided with a sandwich layer, which is filled with thermal insulation material.

[0011] Furthermore, a frame is provided inside the mixer housing at the bottom end of the stirring shaft, and the bottom end of the stirring shaft is rotatably connected to the frame.

[0012] Furthermore, the bottom of the mixer housing is tapered and converges towards the discharge port.

[0013] Furthermore, the stirring shaft has multiple stirring rods evenly distributed on it, and the stirring rods have multiple support rods evenly distributed on them.

[0014] Furthermore, the stirring rod is axially rotatably mounted on the stirring shaft, and a bevel gear is provided at the distal end of the stirring rod. Multiple bevel gear rings are respectively provided on the inner wall of the mixer housing on the upper side of each stirring rod, and the bevel gear rings mesh with the corresponding bevel gears.

[0015] Furthermore, the upper side of the bevel gear ring is provided with an arc-shaped ramp that slopes towards the stirring shaft.

[0016] As can be seen from the above technical solution, this utility model provides a two-component grouting fluid dynamic mixing core mixing device:

[0017] When material is fed into the mixer housing from the inlet, the center line of the inlet is offset from the center line of the mixer housing, and the stirring shaft is rotatably installed in the middle of the inner cavity of the mixer housing. Therefore, the material can be directly pushed to the push plate area to provide thrust to drive the push plate to rotate, which in turn drives the stirring shaft to rotate. Different materials are mixed under the push of the spiral blades, and the mixed slurry is discharged from the outlet. The material conveying provides the power to drive the stirring shaft to rotate. There is no need to rely on external power sources such as motors. It can be used and stopped at any time, with low cost and high efficiency. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the specific embodiments will be briefly described below. In all the drawings, the elements or parts are not necessarily drawn to scale.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a top view of the structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0022] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0023] Figure label:

[0024] Mixer housing 1, feed inlet 11, discharge outlet 12, jacket 13, frame 14, bevel gear ring 15, circular arc ramp 151;

[0025] 2. Stirring shaft, 21. Spiral blade, 22. Push plate, 23. Stirring rod, 231. Support rod, 232. Bevel gear. Detailed Implementation

[0026] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0027] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0029] like Figure 1-4 As shown, this embodiment provides a two-component grouting fluid dynamic mixing core mixing device, which includes a mixer shell 1 and a stirring shaft 2.

[0030] At least one feed port 11 is provided on the top of the side wall of the mixer housing 1 for feeding material into the mixer housing 1. The center line of the feed port 11 is offset from the center line of the mixer housing 1. The bottom of the mixer housing 1 is provided with a discharge port 12.

[0031] The stirring shaft 2 is rotatably installed in the middle of the inner cavity of the mixer housing 1. The stirring shaft 2 is surrounded by spiral blades 21 and has multiple push plates 22 evenly distributed on its top circumference.

[0032] In practical use, when the material is fed into the mixer housing 1 from the feed inlet 11, since the center line of the feed inlet 11 is offset from the center line of the mixer housing 1, and the stirring shaft 2 is rotatably installed in the middle of the inner cavity of the mixer housing 1, the material can be directly pushed to the push plate 22 area to provide thrust to drive the push plate 22 to rotate, thereby driving the stirring shaft 2 to rotate. Different materials are mixed under the push of the spiral blades 21, and the mixed slurry is discharged from the discharge port 12. The material conveying provides the power to drive the stirring shaft 2 to rotate, without the need for external power sources such as motors. It can be used and stopped at any time, with low cost and high efficiency.

[0033] Preferably, there are two feed inlets 11 for conveying two different materials respectively. The feeding direction of the two feed inlets 11 is in the same direction as the clockwise / counterclockwise rotation of the stirring shaft 2, so that different materials can push the push plate 22 in the same direction to drive the stirring shaft 2 to rotate.

[0034] Preferably, the side wall of the mixer shell 1 is provided with a sandwich layer 13, which is filled with heat-insulating material to provide heat insulation for the material inside the mixer shell 1.

[0035] Preferably, a frame 14 is provided inside the mixer housing 1 at the bottom end of the stirring shaft 2. The bottom end of the stirring shaft 2 is rotatably connected to the frame 14, and the frame 14 is hollow, which can provide stable support for the stirring shaft 2 without hindering the material conveying.

[0036] Preferably, the bottom of the mixer housing 1 is conical and converges towards the discharge port 12, which is beneficial to promoting the mixing of materials.

[0037] In one embodiment, multiple stirring rods 23 are evenly distributed on the stirring shaft 2, and multiple support rods 231 are evenly distributed on the stirring rods 23. When the stirring shaft 2 rotates, the spiral blades 21 can convey materials towards the discharge port 12, while the stirring rods 23 can stir the conveyed materials and promote the mixing of different materials.

[0038] Furthermore, the stirring rod 23 is axially rotatably mounted on the stirring shaft 2. A bevel gear 232 is provided at the far end of the stirring rod 23. Multiple bevel gear rings 15 are respectively provided on the inner wall of the mixer housing 1 above each stirring rod 23. The bevel gear rings 15 are driven and meshed with the corresponding bevel gears 232. When the stirring shaft 2 rotates, the stirring rod 23 will rotate synchronously around the axis of the stirring shaft 2, so that the bevel gear 232 meshes and rotates with the bevel gear rings 15. This allows the stirring rod 23 to rotate on its own while the stirring shaft 2 rotates. Each support rod 231 on the stirring rod 23 can mix the material in its area separately, further improving the mixing effect.

[0039] Preferably, the upper side of the conical gear ring 15 is provided with an arc-shaped ramp 151 inclined towards the stirring shaft 2 to prevent material from accumulating above the conical gear ring 15.

[0040] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A dynamic mixing core mixing device for a two-component grouting liquid, characterized in that, include: The mixer housing has at least one feed inlet on the top of its side wall, and the center line of the feed inlet is offset from the center line of the mixer housing. The bottom of the mixer housing has a discharge outlet. A stirring shaft is rotatably mounted in the middle of the inner cavity of the mixer housing. The stirring shaft is surrounded by spiral blades and has multiple push plates evenly distributed on its top circumference.

2. The dynamic mixing core mixing device for two-component grouting fluid according to claim 1, characterized in that, There are two feed inlets, and the feeding direction of both feed inlets is in the same direction as the clockwise / counterclockwise rotation of the stirring shaft.

3. The dynamic mixing core mixing device for two-component grouting fluid according to claim 1, characterized in that, The mixer housing has an inner interlayer on its side wall, which is filled with thermal insulation material.

4. The dynamic mixing core mixing device for two-component grouting fluid according to claim 1, characterized in that, The mixer housing is equipped with a frame located at the bottom end of the stirring shaft, and the bottom end of the stirring shaft is rotatably connected to the frame.

5. The dynamic mixing core mixing device for two-component grouting fluid according to claim 1, characterized in that, The bottom of the mixer shell is conical and converges towards the discharge port.

6. The dynamic mixing core mixing device for two-component grouting fluid according to claim 1, characterized in that, The stirring shaft has multiple stirring rods evenly distributed on it, and the stirring rods have multiple support rods evenly distributed on them.

7. The dynamic mixing core mixing device for two-component grouting fluid according to claim 6, characterized in that, The stirring rod is axially rotatably mounted on the stirring shaft. A bevel gear is provided at the distal end of the stirring rod. Multiple bevel gear rings are respectively provided on the inner wall of the mixer housing on the upper side of each stirring rod. The bevel gear rings mesh with the corresponding bevel gears.

8. The dynamic mixing core mixing device for two-component grouting fluid according to claim 7, characterized in that, The upper side of the bevel gear ring is provided with an arc-shaped ramp that slopes towards the stirring shaft.

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