Speed-adjustable anti-deposition mud mixer

Abstract

The application discloses a speed-adjustable anti-deposition mud mixer and relates to the technical field of anti-deposition mud mixers.The speed-adjustable anti-deposition mud mixer comprises an operation platform, and a mud mixer is arranged at the rear side of the operation platform; an anti-deposition stirring paddle is arranged on the mud mixer; the spiral-belt type paddle and the bottom-scraping anti-deposition paddle are cross-connected; the two paddles are cooperated in the stirring process; the self-adapting structure provided by the spring is combined; the contact pressure can be automatically adjusted according to the actual state of the bottom of the stirring cabin shell; various deposition particles adhered to the bottom and the side wall can be effectively removed; the hardening problem caused by the long-time accumulation of the particles can be prevented; the operation resistance and the abrasion risk of the equipment are remarkably reduced; the service life of the equipment is prolonged; and the stirring efficiency is improved.

Description

Technical Field

[0001] This invention specifically relates to the field of anti-settling mud mixer technology, and more specifically to an adjustable speed anti-settling mud mixer. Background Technology

[0002] In building pile foundations, diaphragm walls, and drilling projects, the homogeneity and anti-deposition capabilities of mud mixing directly affect construction quality and efficiency. Traditional mud mixers mostly employ a fixed-speed, straight-blade structure, which has significant drawbacks: the fixed speed cannot adapt to the mixing needs at different stages, resulting in insufficient powder dispersion in the early stages and easy slurry stratification in the later stages; the straight blades cannot adhere to the bottom and side walls of the chamber, causing cement, bentonite, and other particles to easily deposit and form hard lumps; these deposits not only reduce the homogeneity of the slurry but also wear down the equipment and even clog the discharge port, leading to construction interruptions; while some upgraded equipment has speed adjustment capabilities, the anti-deposition structure is only a single spiral blade, which cannot completely solve the problem of corner deposition; the mixing chamber cover of existing equipment is mostly opened and closed manually, resulting in low operating efficiency and safety hazards. These shortcomings of existing technology have prompted the industry to urgently need a dedicated mud mixing equipment that integrates adjustable speed, active anti-deposition, and convenient operation. Summary of the Invention

[0003] The purpose of this invention is to provide an adjustable speed anti-settling mud mixer. By installing the anti-settling mixing paddle with the mud mixer and using it in conjunction with an operating platform, the adjustable speed adaptability, anti-settling performance, ease of operation, and stability of the anti-settling mud mixer are improved, thereby solving the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution:

[0005] An adjustable speed anti-settling mud mixer, comprising

[0006] An operating platform is provided, with a mud mixer located at the rear of the operating platform; the mud mixer is equipped with an anti-settling stirring paddle.

[0007] The mud mixer includes a mixer mounting frame, the upper end of which is fixedly connected to the mixing chamber shell. Shell bearings are fixedly installed on the outer sides of both the left and right ends of the mixing chamber shell. Bearing seats are fixedly installed on both the left and right ends of the upper surface of the mixer mounting frame. The shell bearings and bearing seats are rotatably connected to both ends of the mixing main shaft. The left end of the mixing main shaft is connected to a variable frequency reduction motor, which is fixedly installed on the upper surface of the left end of the mixer mounting frame.

[0008] As a further technical solution of the present invention, the stirring main shaft is provided with a spiral blade, and a connecting shaft is installed through the stirring main shaft in a rectangular array. Both ends of the connecting shaft are provided with sliding cavities, the ends of the sliding cavities are provided with limiting baffles, and springs are provided inside the sliding cavities.

[0009] As a further technical solution of the present invention, the sliding cavity provided in the connecting shaft is slidably connected to the connecting rod, the tail of the connecting rod is provided with a limiting seat, and the tail of the connecting rod is fitted and connected to the top of the spring; the top of the connecting rod is fixedly connected to the bottom scraping and anti-deposition blade.

[0010] As a further technical solution of the present invention, the bottom scraping anti-deposition blade and the ribbon blade are arranged in a cross pattern, and the bottom scraping anti-deposition blade and the ribbon blade are connected to the inner side of the mixing chamber shell; the bottom scraping anti-deposition blade is fitted and connected to the inside of the mixing chamber shell.

[0011] As a further technical solution of the present invention, the rear upper surface of the mixing chamber shell is rotatably connected to the rear end of the mixing chamber cover; an opening and closing drive electric cylinder is fixedly installed on the outer sides of both the left and right ends of the mixing chamber shell, and the upper end of the opening and closing drive electric cylinder is connected to the outer sides of both the left and right ends of the mixing chamber cover.

[0012] As a further technical solution of the present invention, the lower end of the mixing chamber shell is provided with a discharge port, the lower end of the discharge port is sealed and fixedly connected to the upper end of the unloader via a connecting flange, the lower surface of the right end of the unloader is fixedly connected to the upper surface of the support base, and the right end of the support base is connected to the mixer mounting frame.

[0013] As a further technical solution of the present invention, the front side of the mixer mounting frame is provided with an operating platform frame, and the left end of the operating platform frame is provided with a ladder; a frequency conversion electrical control box is installed on the operating platform frame.

[0014] As a further technical solution of the present invention, the mud mixer is provided with a mechanical gripper above it, which is installed in conjunction with a lifting mechanism; the lifting mechanism is installed in conjunction with a transverse drive mechanism; the transverse drive mechanism is fixed on the gantry frame; and a roller conveyor is provided below the gantry frame.

[0015] Compared with the prior art, the beneficial effects of the present invention are:

[0016] 1. This invention enables a rapid and smooth stepless speed regulation process through the efficient linkage between the variable frequency geared motor and the variable frequency electrical control box, making speed adjustment more flexible and precise. This speed regulation method can accurately match the corresponding stirring process parameters according to the different proportions and viscosity changes of different muds, thereby effectively improving the homogeneity and overall stability of the slurry and ensuring the efficiency and reliability of the stirring process.

[0017] 2. In this invention, the spiral ribbon blade and the bottom scraping anti-deposition blade are cross-coordinated. Through the synergistic action of the two blades during the stirring process, combined with the adaptive fitting structure provided by the spring, the contact pressure can be automatically adjusted according to the actual condition of the bottom of the stirring chamber shell. This effectively removes various deposited particles attached to the bottom and side walls, preventing the hardening problem caused by long-term accumulation of particles. This significantly reduces the operating resistance and wear risk of the equipment, extends the service life of the equipment, and improves the stirring efficiency.

[0018] 3. In this invention, the opening and closing drive electric cylinder realizes the automatic opening and closing function of the mixing chamber cover through its precise control system, thereby replacing the traditional manual operation method. This not only effectively improves the overall efficiency of the feeding process, but also significantly reduces the safety risks during operation. At the same time, the unloader adopts a flange connection structure design, which not only ensures the firmness and sealing of the connection, but also makes the disassembly and cleaning of the equipment more convenient and efficient, and helps to maintain the long-term stable operation of the equipment. Attached Figure Description

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

[0020] Figure 2 In this invention Figure 1 A partial structural diagram.

[0021] Figure 3 In this invention Figure 1 A bottom view.

[0022] Figure 4 In this invention Figure 1 A schematic diagram of the split structure.

[0023] Figure 5 In this invention Figure 4 A schematic diagram of the split structure.

[0024] Figure 6 In this invention Figure 5 A schematic diagram of the split structure.

[0025] Figure 7 In this invention Figure 4 A magnified view of a portion of the image.

[0026] Figure 8 In this invention Figure 6 A magnified view of a portion of the image.

[0027] In the diagram: 1-Operating platform, 2-Mud mixer, 3-Anti-settling mixing paddle, 4-Roller conveyor, 5-Gantry frame, 6-Transverse drive mechanism, 7-Lifting mechanism, 8-Mechanical gripper;

[0028] 11-Operating platform frame; 12-Variable frequency control box;

[0029] 21-Mixer mounting bracket, 22-Mixer chamber shell, 23-Bucket shell bearing, 24-Bearing seat, 25-Variable frequency geared motor, 26-Opening and closing drive cylinder, 27-Mixer chamber top cover, 28-Support base, 29-Unloader, 210-Discharge port;

[0030] 31-Stirring shaft, 32-Spiral blade, 33-Connecting shaft, 34-Spring, 35-Connecting rod, 36-Bottom scraping and anti-settling blade. Detailed Implementation

[0031] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] Please see Figure 1-8 In this embodiment of the invention, an adjustable speed anti-settling mud mixer includes an operating platform 1, with a mud mixer 2 located at the rear of the operating platform 1; an anti-settling stirring paddle 3 is installed on the mud mixer 2.

[0033] The mud mixer 2 includes a mixer mounting frame 21, the upper end of which is fixedly connected to the mixing chamber shell 22. Shell bearings 23 are fixedly installed on the outer sides of both ends of the mixing chamber shell 22. Bearing seats 24 are fixedly installed on both ends of the upper surface of the mixer mounting frame 21. The shell bearings 23 and bearing seats 24 are rotatably connected to both ends of the mixing main shaft 31. The left end of the mixing main shaft 31 is connected to a variable frequency reduction motor 25, which is fixedly installed on the upper surface of the left end of the mixer mounting frame 21.

[0034] By adopting the above technical solution, the high-efficiency linkage between the variable frequency reduction motor 25 and the variable frequency control box 12 enables a fast and smooth stepless speed regulation process, making speed adjustment more flexible and precise. This speed regulation method can accurately match the corresponding mixing process parameters according to the different mud composition and viscosity changes, thereby effectively improving the homogeneity and overall stability of the slurry and ensuring the high efficiency and reliability of the mixing process.

[0035] In this embodiment, the stirring main shaft 31 is provided with a spiral ribbon blade 32, and a connecting shaft 33 is installed through the stirring main shaft 31 in a rectangular array. Both ends of the connecting shaft 33 are provided with sliding cavities, the ends of the sliding cavities are provided with limiting baffles, and springs 34 are provided inside the sliding cavities.

[0036] The connecting shaft 33 has a sliding cavity that is slidably connected to the connecting rod 35. The tail of the connecting rod 35 is provided with a limiting seat, and the tail of the connecting rod 35 is in contact with the top of the spring 34. The top of the connecting rod 35 is fixedly connected to the bottom scraping and anti-deposition blade 36.

[0037] The bottom-scraping anti-deposition blade 36 and the ribbon blade 32 are arranged in a cross pattern, and the bottom-scraping anti-deposition blade 36 and the ribbon blade 32 are connected to the inner side of the mixing chamber shell 22; the bottom-scraping anti-deposition blade 36 is fitted and connected to the inside of the mixing chamber shell 22.

[0038] By adopting the above technical solution, the ribbon blade 32 and the bottom scraping and anti-deposition blade 36 are cross-coordinated. Through the synergistic action of the two blades during the stirring process, combined with the adaptive fitting structure provided by the spring 34, the contact pressure can be automatically adjusted according to the actual condition of the bottom of the mixing chamber shell 22. This effectively removes various deposited particles attached to the bottom and side walls, prevents hardening caused by long-term particle accumulation, and thus significantly reduces the equipment's operating resistance and wear risk, extends the equipment's service life, and improves the stirring efficiency.

[0039] In this embodiment, the rear upper surface of the mixing chamber shell 22 is rotatably connected to the rear end of the mixing chamber cover 27; opening and closing drive cylinders 26 are fixedly installed on the outer sides of both the left and right ends of the mixing chamber shell 22, and the upper end of the opening and closing drive cylinders 26 is connected to the outer sides of both the left and right ends of the mixing chamber cover 27.

[0040] The lower end of the mixing chamber shell 22 is provided with a discharge port 210. The lower end of the discharge port 210 is sealed and fixedly connected to the upper end of the unloader 29 through a connecting flange. The lower surface of the right end of the unloader 29 is fixedly connected to the upper surface of the support base 28. The right end of the support base 28 is connected to the mixer mounting frame 21.

[0041] The mixer mounting frame 21 is provided with an operating platform frame 11 on the front side, and a ladder is provided on the left end of the operating platform frame 11; a frequency conversion electrical control box 12 is installed on the operating platform frame 11.

[0042] By adopting the above technical solution, the opening and closing drive cylinder 26 realizes the automatic opening and closing function of the mixing chamber cover 27 through its precise control system, thereby replacing the traditional manual operation method. This not only effectively improves the overall efficiency of the feeding process, but also significantly reduces the safety risks during operation. At the same time, the unloader 29 adopts a flange connection structure design. This design not only ensures the firmness and sealing of the connection, but also makes the disassembly and cleaning of the equipment more convenient and efficient, which helps to maintain the long-term stable operation of the equipment.

[0043] As a further explanation of this embodiment, in the mud mixing of pile foundations, diaphragm walls and drilling projects, it is necessary to add agents in most cases to adjust the mud properties, ensure the quality of trenching / hole formation, and prevent sedimentation and hole collapse.

[0044] Commonly used mud chemicals (must be added during mixing)

[0045] Bentonite can form the bulk of mud, providing viscosity, wall protection, and suspension capacity;

[0046] Soda ash (Na2CO3) is used to adjust the pH and disperse bentonite, making the slurry more uniform and less prone to separation.

[0047] Carboxymethyl cellulose (CMC) increases viscosity, reduces water loss, and enhances the ability to prevent sedimentation and suspend slag.

[0048] More specifically, the mud mixer 2 is equipped with a mechanical gripper 8 above it, which is installed in conjunction with the lifting mechanism 7; the lifting mechanism 7 is installed in conjunction with the transverse drive mechanism 6; the transverse drive mechanism 6 is fixed on the gantry frame 5; and a roller conveyor 4 is also provided below the gantry frame 5.

[0049] By adopting the above technical solution, the powder medicine bag is transported to the area below the mechanical gripper 8 via the roller conveyor 4. The mechanical gripper 8 descends and picks up the powder medicine bag under the drive of the lifting mechanism 7. Then, the lifting mechanism 7 moves laterally along the gantry frame 5 to the top of the mixing chamber under the drive of the transverse drive mechanism 6, and accurately puts the powder medicine bag into the mixing chamber, realizing the automated dosing of the medicine, further improving the efficiency and accuracy of the mud mixing process, and reducing the errors and risks that may be caused by manual operation.

[0050] The working principle of this invention is as follows: the operator sets process parameters such as stirring speed and time on the operating platform 1 through the variable frequency control box 12; the variable frequency control box 12 transmits the signal to the variable frequency reduction motor 25, and the motor outputs a steplessly adjustable speed according to the instruction;

[0051] The power of the variable frequency geared motor 25 is transmitted to the mixing main shaft 31 through a coupling; the two ends of the main shaft are supported by the housing bearing 23 and the bearing seat 24 to ensure stable rotation at different speeds; the system can automatically switch speeds for different stages of mud mixing; the mixing main shaft 31 drives the ribbon blades 32 to rotate, and the spiral structure of the ribbon pushes the slurry upward along the side wall of the tank and downward in the central area, forming an upward and downward convection circulation, so that the powder and water are initially mixed; the bottom scraping anti-deposition blades 36 are elastically connected to the spring 34 in the connecting shaft 33 through the connecting rod 35; when the main shaft rotates, the blades always adhere to the bottom and side wall of the mixing tank shell 22 under the combined action of centrifugal force and spring force; the ribbon blades 32 and the bottom scraping anti-deposition blades 36 are arranged in a cross pattern, and their rotation trajectories do not overlap; the ribbon blades are responsible for the overall convective mixing of the slurry, while the bottom scraping blades actively remove the corner deposits, avoid the particles from hardening at the bottom, and ensure that there are no dead corners in the entire tank;

[0052] Before feeding, the electric cylinder 26 extends and retracts to drive the mixing chamber cover 27 to flip upward and open. After feeding is completed, the electric cylinder retracts to close and seal the cover, preventing slurry from splashing during mixing. After mixing is completed, the unloader 29 starts and discharges the homogeneous slurry at a uniform speed through the discharge port 210.

[0053] Through the efficient linkage between the variable frequency geared motor 25 and the variable frequency electrical control box 12, a fast and smooth stepless speed regulation process can be achieved, making the speed adjustment more flexible and precise. This speed regulation method can accurately match the corresponding mixing process parameters according to the different mud composition and viscosity changes, thereby effectively improving the homogeneity and overall stability of the slurry and ensuring the efficiency and reliability of the mixing process.

[0054] The ribbon blade 32 and the bottom scraping anti-deposition blade 36 are cross-coordinated. Through the synergistic action of the two blades during the stirring process, combined with the adaptive fitting structure provided by the spring 34, the contact pressure can be automatically adjusted according to the actual condition of the bottom of the mixing chamber shell 22. This effectively removes various deposited particles attached to the bottom and side walls, prevents hardening caused by long-term accumulation of particles, thereby significantly reducing the equipment's operating resistance and wear risk, extending the equipment's service life and improving stirring efficiency.

[0055] The electric cylinder 26, through its precise control system, enables the automatic opening and closing of the mixing chamber cover 27, thereby replacing the traditional manual operation method. This not only effectively improves the overall efficiency of the feeding process but also significantly reduces the safety risks during operation. Meanwhile, the unloader 29 adopts a flange connection structure design, which not only ensures the firmness and sealing of the connection but also makes the disassembly and cleaning of the equipment more convenient and efficient, contributing to the long-term stable operation of the equipment.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0057] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An adjustable speed anti-settling mud mixer, characterized in that: include An operating platform (1) is provided with a mud mixer (2) on the rear side of the operating platform (1); the mud mixer (2) is equipped with an anti-settling stirring paddle (3). The mud mixer (2) includes a mixer mounting frame (21), the upper end of which is fixedly connected to the mixing chamber shell (22), and the outer sides of the left and right ends of the mixing chamber shell (22) are fixedly installed with shell bearings (23); the upper surface of the mixer mounting frame (21) is fixedly installed with bearing seats (24) at both ends; the shell bearings (23) and bearing seats (24) are rotatably connected to both ends of the mixing main shaft (31), the left end of the mixing main shaft (31) is connected to the variable frequency reduction motor (25), and the variable frequency reduction motor (25) is fixedly installed on the upper surface of the left end of the mixer mounting frame (21).

2. The adjustable speed anti-settling mud mixer according to claim 1, characterized in that: The stirring spindle (31) is provided with a spiral blade (32), and a connecting shaft (33) is installed in a rectangular array through the stirring spindle (31). Both ends of the connecting shaft (33) are provided with sliding cavities, the ends of the sliding cavities are provided with limiting baffles, and springs (34) are provided inside the sliding cavities.

3. The adjustable speed anti-settling mud mixer according to claim 2, characterized in that: The connecting shaft (33) has a sliding cavity that is slidably connected to the connecting rod (35). The tail of the connecting rod (35) is provided with a limiting seat, and the tail of the connecting rod (35) is fitted and connected to the top of the spring (34). The top of the connecting rod (35) is fixedly connected to the bottom scraping and anti-deposition blade (36).

4. The adjustable speed anti-settling mud mixer according to claim 3, characterized in that: The bottom-scraping anti-deposition blade (36) and the ribbon blade (32) are arranged in a cross pattern, and the bottom-scraping anti-deposition blade (36) and the ribbon blade (32) are connected to the inner side of the mixing chamber shell (22); the bottom-scraping anti-deposition blade (36) is fitted and connected to the inside of the mixing chamber shell (22).

5. The adjustable speed anti-settling mud mixer according to claim 4, characterized in that: The rear upper surface of the mixing chamber shell (22) is rotatably connected to the rear end of the mixing chamber cover (27); the left and right outer sides of the mixing chamber shell (22) are fixedly installed with opening and closing drive cylinders (26), and the upper end of the opening and closing drive cylinders (26) is connected to the left and right outer sides of the mixing chamber cover (27).

6. The adjustable speed anti-sedimentation mud mixer according to claim 5, characterized in that: The lower end of the mixing chamber shell (22) is provided with a discharge port (210). The lower end of the discharge port (210) is sealed and fixedly connected to the upper end of the unloader (29) through a connecting flange. The lower surface of the right end of the unloader (29) is fixedly connected to the upper surface of the support base (28). The right end of the support base (28) is connected to the mixer mounting frame (21).

7. The adjustable speed anti-settling mud mixer according to claim 6, characterized in that: The mixer mounting frame (21) is provided with an operating platform frame (11) on the front side, and a ladder is provided on the left end of the operating platform frame (11); a variable frequency control box (12) is installed on the operating platform frame (11).

8. The adjustable speed anti-settling mud mixer according to claim 6, characterized in that: The mud mixer (2) is provided with a mechanical gripper (8) above it, which is installed in conjunction with the lifting mechanism (7); the lifting mechanism (7) is installed in conjunction with the transverse drive mechanism (6); the transverse drive mechanism (6) is fixed on the gantry frame (5); and a roller conveyor (4) is provided below the gantry frame (5).

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