A slurry mixing shaft for a fluidized solidified soil slurry preparation device
Patent Information
- Application Number
- CN202611316161.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-28
- Publication Date
- 2026-09-25
AI Technical Summary
[0003]本发明的目的是，提供一种用于流态固化土泥浆制备装置的泥浆搅拌轴，以解决传统搅拌轴在制备流态固化土泥浆时产生泥团并向搅拌杆两端堆载而影响搅拌效果、泥浆质量、搅拌轴使用寿命及引发卡壳的机械故障的问题
[0015]本发明提供的用于流态固化土泥浆制备装置的泥浆搅拌轴，在旋转搅拌制备流态固化土泥浆时，土体与水混合形成泥团通过T型搅拌叶片并向前推送，被T’型搅拌叶片反向推回，使泥团在T型搅拌叶片和T’型搅拌叶片之间往复式运动，在往复式运动过程中，泥团被T型搅拌叶片和T’型搅拌叶片之间的I型搅拌叶片多次打散形成泥料实现破团，从而使打散后的泥料与水再次混合形成泥浆，提高了泥浆搅拌效果和泥浆的成品质量，避免了泥团向搅拌杆的一端推送造成淤积堆载的问题，从而避免了泥浆搅拌轴的搅拌杆的两端被淤积堆载的泥团堵塞而造成卡壳的机械故障及压力升高导致磨损加剧的问题，提高了泥浆搅拌轴的使用寿命。
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Figure CN122808069A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of building construction technology, and in particular to a mud mixing shaft for a fluidized solidified soil mud preparation device. Background Technology
[0002] Fluidized solidified soil slurry is used for backfilling in underground engineering projects. Slurry mixers and other fluidized solidified soil slurry preparation devices are used to prepare this slurry. They primarily use a mixing shaft to rotate and mix soil and water as raw materials. Existing mixing shafts consist of a mixing rod and mixing blades arranged in a spiral at the same angle. During the preparation of fluidized solidified soil slurry, due to the high viscosity of the soil, the mixing of soil and water easily forms clumps when stirred by the mixing shaft. During shaft rotation, these clumps are pushed to one end of the mixing rod by the spirally distributed mixing blades. When the shaft rotates in the opposite direction, newly formed clumps are pushed to the other end, resulting in the accumulation of clumps at both ends of the mixing shaft. As the shaft continues to rotate, the pressure at both ends of the mixing rod increases, wear intensifies, and mechanical failures such as shaft jamming due to blockage caused by the accumulated clumps occur. Summary of the Invention
[0003] The purpose of this invention is to provide a mud mixing shaft for a fluidized solidified soil slurry preparation device, in order to solve the problems of traditional mixing shafts generating mud clumps and piling them onto both ends of the mixing rod during the preparation of fluidized solidified soil slurry, which affects the mixing effect, slurry quality, service life of the mixing shaft, and causes mechanical failures such as jamming.
[0004] To address the aforementioned technical problems, this invention provides a slurry mixing shaft for a fluidized solidified soil slurry preparation device, comprising a mixing rod and several sets of blade units disposed thereon. Each set of blade units includes T-shaped mixing blades, I-shaped mixing blades, and T'-shaped mixing blades spirally distributed on the mixing rod. The T-shaped mixing blades are arranged at a positive inclination angle on the mixing rod, the I-shaped mixing blades are arranged vertically on the mixing rod, and the T'-shaped mixing blades are arranged at a negative inclination angle on the mixing rod. The T-shaped mixing blades, I-shaped mixing blades, and T'-shaped mixing blades of each set of blade units are arranged in a straight line.
[0005] Furthermore, in the mud mixing shaft provided by the present invention, the T-shaped mixing blades and the T'-shaped mixing blades have the same angle and opposite inclination directions.
[0006] Furthermore, in the mud mixing shaft provided by the present invention, the positive tilt angle of the T-shaped mixing blade is +30 degrees to +45 degrees, and the negative tilt angle of the T'-shaped mixing blade is -30 degrees to -45 degrees.
[0007] Furthermore, in the mud mixing shaft provided by the present invention, the positive tilt angle of the T-shaped mixing blade is +35 degrees, and the negative tilt angle of the T'-shaped mixing blade is -35 degrees.
[0008] Furthermore, in the mud mixing shaft provided by the present invention, the T-shaped mixing blades, I-shaped mixing blades and T'-shaped mixing blades are all detachably mounted on the mixing rod by means of clamps.
[0009] Furthermore, in the mud mixing shaft provided by the present invention, the clamp and the mixing rod connected thereto are both provided with keyways, and the clamp and the mixing rod are installed in the keyways at corresponding positions by means of a flat key.
[0010] Furthermore, the mud mixing shaft provided by the present invention includes two semi-circular clamps detachably mounted on the mixing rod and multiple bolts connecting the two.
[0011] Furthermore, in the mud mixing shaft provided by the present invention, the T-shaped mixing blade, the I-shaped mixing blade, and the T'-shaped mixing blade are all disposed on one of the semi-circular clamps of the corresponding clamps.
[0012] Furthermore, the mud mixing shaft provided by the present invention includes, for both the T-shaped mixing blade and the T'-shaped mixing blade, an inclined column fixedly mounted on a corresponding semi-circular clamp and a T-shaped plate detachably connected thereon.
[0013] Furthermore, the mud mixing shaft provided by the present invention also includes bearing seats located outside the blade unit and installed at both ends of the mixing rod.
[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:
[0015] The mud mixing shaft provided by this invention for a fluidized solidified soil slurry preparation device, during the rotational mixing process to prepare fluidized solidified soil slurry, the soil and water mix to form mud clumps, which are pushed forward by T-shaped mixing blades and pushed back by T'-shaped mixing blades. This causes the mud clumps to reciprocate between the T-shaped and T'-shaped mixing blades. During this reciprocating motion, the mud clumps are repeatedly broken up by the I-shaped mixing blades between the T-shaped and T'-shaped mixing blades, thus breaking up the mud clumps. This allows the broken mud clumps to mix with water again to form slurry, improving the mud mixing effect and the quality of the finished slurry. It also avoids the problem of mud clumps being pushed to one end of the mixing rod, causing siltation and accumulation. This prevents the two ends of the mixing rod of the mud mixing shaft from being blocked by silted-up mud clumps, resulting in mechanical failures such as jamming and increased wear due to pressure rise, thereby improving the service life of the mud mixing shaft. Attached Figure Description
[0016] Figure 1This is a three-dimensional structural diagram of the mud stirring shaft used in a fluidized solidified soil mud preparation device;
[0017] Figure 2 This is a schematic diagram of the main structure of the mud stirring shaft used in the fluidized solidified soil mud preparation device;
[0018] Figure 3 This is a diagram illustrating the principle of how a mud mixing shaft breaks up mud clumps during mixing.
[0019] Figure 4 This is a schematic diagram illustrating the principle of axial force balance on the mud mixing shaft;
[0020] Figure 5 This is a three-dimensional structural diagram of the stirring rod of the mud mixing shaft;
[0021] Figure 6 It is a three-dimensional exploded view of the installation node of the stirring blade and the stirring rod through the clamp;
[0022] Figure 7 This is a three-dimensional structural diagram of a T-shaped stirring blade set on a semi-circular clamp.
[0023] Figure 8 This is a top view showing the T-shaped stirring blades distributed at a 35-degree angle relative to the stirring rod;
[0024] Figure 9 This is a top view showing the T'-shaped stirring blades distributed at a -35-degree angle relative to the stirring rod;
[0025] Figure 10 This is a three-dimensional structural diagram of a type I stirring blade;
[0026] Figure 11 This is a side view of the mud mixing shaft.
[0027] As shown in the figure:
[0028] 100. Mud mixing shaft; 110. Mixing rod; 120. Blade unit; 121. T-shaped mixing blade; 122. I-shaped mixing blade; 123. T'-shaped mixing blade; 124. Inclined column; 125. T-shaped plate; 130. Clamp; 131. Semi-circular clamp; 132. Bolt; 140. Bearing seat; 150. Keyway; 160. Flat key; 170. Mud lump. Detailed Implementation
[0029] The present invention will now be described in detail with reference to the accompanying drawings. The advantages and features of the present invention will become clearer from the following description. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.
[0030] Please refer to Figures 1 to 2 and Figure 11 This invention provides a mud mixing shaft 100 for a fluidized solidified soil mud preparation device, comprising a mixing rod 110 and a plurality of sets of blade units 120 disposed thereon. Each set of blade units 120 includes T-shaped mixing blades 121, I-shaped mixing blades 122 and T'-shaped mixing blades 123 spirally distributed on the mixing rod 110. The T-shaped mixing blades 121 are arranged at a positive tilt angle on the mixing rod 110, the I-shaped mixing blades 122 are arranged vertically on the mixing rod 110, and the T'-shaped mixing blades 123 are arranged at a negative tilt angle on the mixing rod 110. The T-shaped mixing blades 121, I-shaped mixing blades 122 and T'-shaped mixing blades 123 of each set of blade units 120 are arranged in a straight line.
[0031] Please refer to Figures 1 to 2 and Figure 9 The working principle of the mud stirring shaft 100 for the fluidized solidified soil mud preparation device provided in this embodiment of the invention is as follows: When the mud stirring shaft 100 rotates and stirs the soil and water to prepare fluidized solidified soil mud, due to the high viscosity of the soil, when it is mixed with water to form mud clumps 170, the mud clumps 170 are pushed forward by the T-shaped stirring blades 121 and encounter the T'-shaped stirring blades 123. Because the tilt angle of the T'-shaped stirring blade 123 is opposite to that of the T'-shaped stirring blade 121, and the thrust is opposite, the mud clump 170 is pushed back by the T'-shaped stirring blade 123, causing the mud clump 170 to reciprocate between the T'-shaped stirring blade 121 and the T'-shaped stirring blade 123. During the reciprocating motion, the mud clump 170 is repeatedly cut and broken up by the I-shaped stirring blade 122 between the T'-shaped stirring blade 121 and the T'-shaped stirring blade 123 to form mud material, i.e., breaking up the clumps. This allows the broken mud material to be mixed with water again to form slurry, improving the slurry mixing effect and the quality of the finished slurry. It also avoids the problem of mud clump 170 being pushed to one end of the stirring rod 110, causing siltation and accumulation. This avoids the mechanical failure of jamming caused by the accumulation of mud clump 170 at both ends of the stirring rod 110 of the slurry stirring shaft 100, as well as the problem of increased pressure leading to accelerated wear. This improves the service life of the slurry stirring shaft 100. The mud lumps vary in shape and have no fixed shape. They include mud-like lumps formed by mixing soil and water, as well as soil-like lumps such as soil-like solids contained in the soil, and mixed mud lumps formed by mixing stones, soil, and water contained in the soil.
[0032] Please refer to this carefully. Figure 2 and Figure 9The mud stirring shaft 100 for the fluidized solidified soil mud preparation device provided in this embodiment of the invention enhances the ability to break up, disperse, and mix and renew mud by means of a blade unit 120 composed of T-shaped stirring blades 121, I-shaped stirring blades 122 and T'-shaped stirring blades 123 spirally distributed on the stirring rod, thereby improving the mud stirring effect and quality.
[0033] Please refer to Figure 10 The mud stirring shaft 100 for the fluidized solidified soil mud preparation device provided in this embodiment of the invention, through the design of several sets of blade units 120, allows the mud to be stirred in segments between the sets of blade units 120, preventing unidirectional load accumulation at the shaft end. Simultaneously, the T-shaped stirring blade 121 and the T'-shaped stirring blade 123, due to their different inclination angles, experience opposite axial forces from the mud. The axial force of the mud acting on the T'-shaped stirring blade 123 is F', and the axial force of the mud acting on the T-shaped stirring blade 121 is F, thus balancing the axial forces acting on the stirring rod 110, i.e., F=F', avoiding the problem of additional axial load caused by long-term unidirectional material pushing.
[0034] Please refer to Figures 1 to 2 To achieve axial force balance and improve uniform mixing, in a preferred embodiment of the present invention, the mud mixing shaft 100 has T-shaped mixing blades 121 and T'-shaped mixing blades 123 with the same angle and opposite inclination directions. Preferably, the positive inclination angle of the T-shaped mixing blades 121 is +30 to +45 degrees, and the negative inclination angle of the T'-shaped mixing blades 123 is -30 to -45 degrees. Most preferably, the positive inclination angle of the T-shaped mixing blades 121 is +35 degrees, and the negative inclination angle of the T'-shaped mixing blades 123 is -35 degrees.
[0035] Please refer to Figures 1 to 2 , Figures 5 to 6 To reduce maintenance costs associated with wear and tear on the mud mixing shaft 100 during mixing and slurry preparation, the mud mixing shaft 100 provided in this embodiment of the invention features T-shaped mixing blades 121, I-shaped mixing blades 122, and T'-shaped mixing blades 123, all of which are detachably mounted on the mixing rod 110 via clamps 130. The clamps 130 include two semi-circular clamps 131 detachably mounted on the mixing rod 110 and a bolt 132 connecting them. Therefore, when any one of the T-shaped mixing blades 121, I-shaped mixing blades 122, or T'-shaped mixing blades 123 experiences wear, it can be replaced individually, avoiding the need for a complete replacement of the mud mixing shaft 100. This reduces maintenance costs and difficulty, and saves maintenance time.
[0036] Please refer to Figures 6 to 10For ease of assembly, the mud mixing shaft 100 provided in this embodiment of the invention has the T-shaped mixing blade 121, the I-shaped mixing blade 122 and the T'-shaped mixing blade 123 all mounted on a semi-circular clamp 131.
[0037] Please refer to Figure 7 To further reduce maintenance costs, the mud mixing shaft 100 provided in this embodiment of the invention includes an inclined column 124 fixedly mounted on a corresponding semi-circular clamp 131 and a T-shaped plate 125 detachably connected thereto. For example, the T-shaped plate 125 and the inclined column 124 are detachably connected by bolts or other fasteners. Therefore, maintenance and replacement of the mud mixing shaft 100 can be achieved simply by replacing the T-shaped plate 125 when the T-shaped plate 125 is worn but the inclined column 124 is not worn, without needing to replace the inclined column 124, thus reducing maintenance costs. The inclined column 124 of the T-shaped mixing blade 121 and the inclined column 124 of the T'-shaped mixing blade 123 have the same structure, the same angle, but different inclination directions. To reduce mold opening or processing costs, the inclined column 124 has the same structure as the I-shaped mixing blade 122, but different installation angles relative to the axial direction of the semi-circular clamp 131.
[0038] Please refer to Figures 5 to 6 To prevent the T-shaped stirring blades 121, I-shaped stirring blades 122, and T'-shaped stirring blades 123 from rotating circumferentially relative to the stirring rod 110, the mud stirring shaft 100 provided in this embodiment of the invention has keyways 150 on both the clamp 130 and the connected stirring rod 110. The clamp 130 and the stirring rod 110 are embedded in the keyways 150 at corresponding positions via flat keys 160. The flat keys 160 securely lock the clamp 130 onto the stirring rod 110, preventing the stirring blades from rotating relative to the stirring rod 110.
[0039] Please refer to Figures 1 to 2 To enable the mud mixing shaft 100 to be installed and used in the fluidized solidified soil mud preparation device, the mud mixing shaft 100 provided in this embodiment of the invention further includes bearing seats 140 installed at both ends of the mixing rod 110. The bearing seats 140 enable the mixing rod 110 to drive the mixing blades thereon to rotate.
[0040] This invention is not limited to the specific embodiments described above. Obviously, the embodiments described above are only a part of the embodiments of this invention, not all of them. All other embodiments obtained by those skilled in the art based on the described embodiments of this invention are within the scope of protection of this invention. Those skilled in the art can make other modifications and variations to this invention. Therefore, if these modifications and variations of this invention fall within the scope of the claims of this invention, then this invention also intends to include these modifications and variations.
Claims
1. A slurry mixing shaft for a fluidized solidified soil slurry preparation device, characterized in that, The device includes a stirring rod and several sets of blade units disposed thereon. Each set of blade units includes T-shaped stirring blades, I-shaped stirring blades, and T'-shaped stirring blades spirally distributed on the stirring rod. The T-shaped stirring blades are arranged at a positive tilt angle on the stirring rod, the I-shaped stirring blades are arranged vertically on the stirring rod, and the T'-shaped stirring blades are arranged at a negative tilt angle on the stirring rod. The T-shaped stirring blades, I-shaped stirring blades, and T'-shaped stirring blades of each set of blade units are arranged in a straight line.
2. The mud mixing shaft according to claim 1, characterized in that, The T-shaped stirring blades and the T'-shaped stirring blades have the same angle but opposite inclination directions.
3. The mud mixing shaft according to claim 2, characterized in that, The positive tilt angle of the T-shaped stirring blade is +30 degrees to +45 degrees, and the negative tilt angle of the T'-shaped stirring blade is -30 degrees to -45 degrees.
4. The mud mixing shaft according to claim 3, characterized in that, The positive tilt angle of the T-shaped stirring blade is +35 degrees, and the negative tilt angle of the T'-shaped stirring blade is -35 degrees.
5. The mud mixing shaft according to claim 1, characterized in that, The T-shaped stirring blade, I-shaped stirring blade, and T'-shaped stirring blade are all detachably mounted on the stirring rod via clamps.
6. The mud mixing shaft according to claim 5, characterized in that, The clamp and the connecting stirring rod are both provided with keyways, and the clamp and the stirring rod are installed in the keyways at corresponding positions by a flat key.
7. The mud mixing shaft according to claim 5, characterized in that, The clamps include two semi-circular clamps that can be detachably mounted on the stirring rod and multiple bolts connecting the two.
8. The mud mixing shaft according to claim 7, characterized in that, The T-shaped stirring blade, I-shaped stirring blade, and T'-shaped stirring blade are all mounted on one of the semi-circular clamps of the corresponding clamps.
9. The mud mixing shaft according to claim 8, characterized in that, Both the T-shaped stirring blade and the T'-shaped stirring blade include an inclined column fixedly mounted on the corresponding semi-circular clamp and a T-shaped plate detachably connected thereon.
10. The mud mixing shaft according to claim 1, characterized in that, It also includes bearing seats located outside the blade unit and mounted at both ends of the stirring rod.