High-pressure jetting and filling system for sludge reinforcement

Abstract

The invention discloses a high-pressure jetting and filling system for sludge reinforcement, relates to the technical field of high-pressure jetting and filling equipment, and provides the following scheme that the high-pressure jetting and filling system for sludge reinforcement comprises a jetting outer pipe mechanism, a drill rod is rotationally arranged in an inner cavity of the jetting outer pipe mechanism, and a rotary driving mechanism is arranged at the rear end of the jetting outer pipe mechanism and the rear end of the drill rod; and a high-pressure injection pipe is arranged on the outer surface of the injection outer pipe mechanism. The injection outer pipe mechanism of the system is composed of multiple sections of alloy sleeves and crushing rings, the length can be flexibly adjusted according to the construction depth, the reinforcement requirements of sludge of different depths are met, alloy tool bits are embedded in the front ends of the crushing rings, large stones or hard soil layers in the sludge can be crushed, and the construction efficiency and the reinforcement effect are improved. And the high-pressure grouting pump is connected with the arched protective cover through the liquid sliding ring, the arched protective cover and the grouting conveying pipe are provided with a plurality of circular holes for discharging grouting, and the circular holes are coaxially arranged, so that wide coverage and uniform permeation of a grouting material in a silt layer are ensured.

Description

Technical Field

[0001] This invention relates to the field of high-pressure injection and filling equipment technology, specifically to a high-pressure injection and filling system for sludge reinforcement. Background Technology

[0002] In fields such as river management, port construction, and urban underground space development, the treatment of silt foundations is particularly important. Traditional methods for treating silt foundations include excavation and replacement, drainage consolidation, and chemical solidification. However, these methods have drawbacks such as long construction periods, high costs, and significant environmental impacts. Especially for large-area, deep-seated silt foundations, traditional methods often fail to achieve the desired reinforcement effect.

[0003] In recent years, high-pressure jet grouting technology has been widely used in the treatment of soft soil foundations. This technology uses high-pressure jetting equipment to inject grout or water into the soil layer. The impact force, centrifugal force, and gravity of the high-pressure jet thoroughly mix the grout with the soil particles, forming a new structure and thus improving the bearing capacity and stability of the foundation. However, existing high-pressure jet grouting equipment still has some shortcomings in the treatment of silty soil foundations, such as uneven grouting and complex equipment that is difficult to maintain.

[0004] To address the aforementioned problems, this invention proposes a high-pressure injection and filling system for silt reinforcement. This system uses a high-pressure grouting pump to inject grouting materials such as cement slurry into the silt layer through a high-pressure injection pipe. A rotary drive mechanism rotates the drill rod and the injection outer pipe mechanism, achieving uniform injection of the grouting material and thorough mixing of the silt. Simultaneously, the system incorporates a multi-section alloy casing and a crushing ring structure to adapt to the silt reinforcement requirements of different depths, and improves the durability and ease of maintenance of the equipment. Summary of the Invention

[0005] In view of the shortcomings mentioned above, this paper provides a technical solution for a high-pressure injection and filling system for sludge reinforcement.

[0006] It includes an injection outer tube mechanism, in which a drill rod is rotatably disposed within the inner cavity of the injection outer tube mechanism, and a rotary drive mechanism is disposed at the rear end of the injection outer tube mechanism and the drill rod, and a high-pressure injection pipe is disposed on the outer surface of the injection outer tube mechanism;

[0007] The injection outer tube mechanism includes a main sleeve, multiple alloy sleeves snapped at the front end of the main sleeve, and a breakage ring snapped at the front end of the alloy sleeve. The rear end of the alloy sleeve and the rear end of the breakage ring are fixedly connected with insert rings that are respectively inserted into the interior of the alloy sleeve and the main sleeve. The outer surface of each insert ring has 6-8 protrusions fixed in a ring array.

[0008] The front end of the main sleeve and the front end of the alloy sleeve are both provided with grooves for the coupling of the protruding strip; wherein, the connection position between the crushing ring and the alloy sleeve, the connection position between the alloy sleeves, and the connection position between the alloy sleeve and the main sleeve are all screwed with 6-8 countersunk screws arranged in a ring array.

[0009] The rotary drive mechanism includes a gear housing, two drive motors fixedly connected to the rear end face of the gear housing, and drive gears located on the left and right sides of the inner cavity of the gear housing and connected to the output shafts of the drive motors respectively via couplings. A driven gear that meshes with the drive gear is rotatably arranged in the central area of ​​the inner cavity of the gear housing. An end cover is fixedly connected to the front end face of the gear housing. A planetary gear carrier is fixedly connected to the front end face of the end cover. 3-5 planetary gears are rotatably arranged in a circular array in the inner cavity of the planetary gear carrier. A gear ring is rotatably arranged between the end cover and the planetary gear carrier. The inner teeth of the gear ring mesh with the teeth of the planetary gears. The outer surface of the gear ring is fixedly connected to the inner wall of the rear end port of the main sleeve.

[0010] The high-pressure injection pipe includes a high-pressure grouting pump, a multi-section arched protective cover connected to the delivery port of the high-pressure grouting pump via a liquid slip ring, and a multi-section grouting delivery pipe covering the outer surface of the arched protective cover. The outer surface of the grouting delivery pipe is fixedly connected to the outer ring surface of the main sleeve.

[0011] The drill rod consists of at least two sections, and a helical gear is fixedly connected to the rear end of the drill rod. The rear end of the helical gear is fixedly connected to the front end face of the driven gear. The outer ring teeth of the helical gear mesh with the teeth of the planetary gear.

[0012] In the above-mentioned technical solution of a high-pressure injection and filling system for sludge reinforcement, preferably: a sludge unloading trough is provided through the side wall of the main casing.

[0013] In the above-mentioned technical solution of a high-pressure injection and filling system for sludge reinforcement, preferably: a sealing ring is provided between the outer ring surface of the insert ring and the front end port of the alloy sleeve and the front end port of the main sleeve.

[0014] In the above-mentioned technical solution of a high-pressure injection and filling system for sludge reinforcement, preferably: a number of combined alloy cutter heads are embedded and fixed at the edge of the front end port of the crushing ring, and the alloy cutter heads are arranged in a ring array with the axis of the crushing ring as the base point.

[0015] In the above-mentioned technical solution of a high-pressure injection and filling system for sludge reinforcement, preferably: the front end face of the housing of the drive motor is fixedly connected to the rear end of the housing of the gear housing, and the drive motors are all arranged in a left-right mirror symmetrical manner with the axis of the gear housing as the base point.

[0016] In the above-mentioned technical solution of a high-pressure injection and filling system for silt reinforcement, preferably: the top surface of the gear housing is fixedly connected to the bottom surface of the high-pressure grouting pump by a number of bolts.

[0017] In the above-mentioned technical solution of a high-pressure injection and filling system for silt reinforcement, preferably: a bearing seat is installed on the rear end side wall of the inner cavity of the gear housing for the drill rod to pass through the rear end of the driven gear and rotate.

[0018] In the above-mentioned technical solution of a high-pressure injection and filling system for silt reinforcement, preferably: the drill rod is composed of multiple sections of auger rod, and each section of auger rod is connected to the other by a joint and screws.

[0019] In the above-mentioned technical solution of a high-pressure injection and filling system for silt reinforcement, preferably: multiple round holes for grout discharge are opened on the outer surfaces of the arched protective cover and the grouting delivery pipe, and the round holes on the arched protective cover and the round holes on the grouting delivery pipe are coaxially arranged.

[0020] In the above-mentioned technical solution of a high-pressure injection and filling system for silt reinforcement, preferably: the gear housing is connected to the output end of the pile driver by high-strength bolts on the side wall away from the high-pressure grouting pump.

[0021] As can be seen from the above technical solution, the high-pressure injection and filling system for sludge reinforcement provided by the present invention has the following beneficial effects compared with the prior art:

[0022] This system injects grouting material directly into the silt layer through a high-pressure injection pipe, allowing it to mix thoroughly with soil particles to form a solid cement-soil consolidation body. This effectively improves the bearing capacity and stability of the silt foundation. The injection pipe mechanism consists of multiple sections of alloy sleeve and a breaking ring, whose length can be flexibly adjusted according to the construction depth to adapt to the reinforcement needs of silt at different depths. The breaking ring is equipped with an alloy cutter head at its front end, capable of breaking large rocks or hard soil layers in the silt, improving construction efficiency and reinforcement effect. Furthermore, the high-pressure grouting pump is connected to an arched protective cover via a liquid slip ring, enabling continuous and uniform delivery of the grouting material. The arched protective cover and the grout delivery pipe have multiple circular holes for grout discharge, and these holes are coaxially arranged to ensure extensive coverage and uniform penetration of the grouting material into the silt layer. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments of the present invention or the prior art will be briefly introduced and explained below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the overall structure of the high-pressure injection filling system;

[0025] Figure 2 This is a schematic diagram of the injection outer tube mechanism;

[0026] Figure 3 For the appendix Figure 2 A magnified schematic diagram of region A within the diagram;

[0027] Figure 4 This is a schematic diagram of a high-pressure injection pipe;

[0028] Figure 5 This is a schematic diagram of the drilling mechanism;

[0029] Figure 6 This is a schematic diagram of a drill pipe;

[0030] Figure 7 This is a schematic diagram of a rotary drive mechanism.

[0031] Appendix Figure 1 -Appendix Figure 7 The correspondence between the components is as follows:

[0032] 1. Injection outer pipe mechanism; 11. Main casing; 12. Mud unloading trough; 13. Alloy casing; 14. Crushing ring; 15. Alloy cutter head; 16. Raised bar; 17. Groove; 18. Countersunk screw; 19. Insert ring; 2. Rotary drive mechanism; 21. Gear housing; 22. Driven gear; 23. End cap; 24. Planetary gear; 25. Planetary gear carrier; 26. Gear ring; 27. Drive motor; 28. Drive gear; 3. High-pressure injection pipe; 31. High-pressure grouting pump; 32. Arched protective cover; 33. Grouting delivery pipe; 4. Drill rod; 5. Helical gear. Detailed Implementation

[0033] 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 embodiments described below 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 of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0034] To provide a clearer explanation and illustration of the technical solution and implementation of the present invention, the following describes preferred embodiments of the technical solution of the present invention.

[0035] A preferred technical solution for a high-pressure injection and filling system for sludge reinforcement:

[0036] Refer to the instruction manual appendix Figure 1 -Appendix Figure 7 As shown:

[0037] I. Overall System Structure:

[0038] The high-pressure injection and filling system of this invention mainly includes an injection outer tube mechanism 1, a rotary drive mechanism 2, a high-pressure injection pipe 3, and a drill rod 4. The injection outer tube mechanism 1 serves as the main support structure of the system, and the drill rod 4 is rotatably mounted within its inner cavity for drilling and stirring in the silt. The rotary drive mechanism 2 is connected to the rear ends of the injection outer tube mechanism 1 and the drill rod 4, providing rotational power. The high-pressure injection pipe 3 is mounted on the outer surface of the injection outer tube mechanism 1 for high-pressure injection of grouting material into the silt to reinforce the silt layer.

[0039] II. Specific structure of injection outer tube mechanism 1:

[0040] Main sleeve 11 and alloy sleeve 13:

[0041] The injection outer casing mechanism 1 includes a main casing 11, the front end of which is connected to multiple sections of alloy casing 13 via a snap-fit ​​connection. The alloy casing 13 is made of an alloy material with high hardness and wear resistance to enhance its drilling capability in silt.

[0042] Each section of the alloy sleeve 13 is connected by a snap-fit ​​connection through the engagement of a retainer ring 19 and a groove 17. Specifically, retainer rings 19 are fixedly connected to the rear end of the alloy sleeve 13 and the rear end of the breakage ring 14 at the front end of the foremost alloy sleeve 13. Six to eight protrusions 16 are fixedly arranged in a ring array on the outer surface of the retainer rings 19. Grooves 17 are provided at the front end of both the main sleeve 11 and the front end of the alloy sleeve 13 for the protrusions 16 to engage, thus achieving a tight connection.

[0043] Fragmentation ring 14:

[0044] The front end of the alloy casing 13 is snapped with a breaking ring 14. Several sets of alloy cutter heads 15 are embedded and fixed at the edge of the front end of the breaking ring 14. The alloy cutter heads 15 are arranged in a circular array with the axis of the breaking ring 14 as the base point. The function of the breaking ring 14 and the alloy cutter heads 15 is to break up hard objects in the mud during drilling, thereby improving drilling efficiency.

[0045] Connection and sealing:

[0046] At the connection points of the crushing ring 14 and the alloy sleeve 13, the connection points of the alloy sleeves 13 to each other, and the connection points of the alloy sleeve 13 and the main sleeve 11, 6-8 countersunk screws 18 arranged in a ring array are screwed on to enhance the connection strength.

[0047] A sealing ring is provided between the outer ring surface of the insertion ring 19 and the front end port of the alloy sleeve 13 and the front end port of the main sleeve 11 to ensure the sealing of the connection and prevent leakage of grouting material.

[0048] Mud unloading trough 12

[0049] A mud discharge groove 12 is provided through the side wall of the main casing 11 to discharge silt during drilling and reduce drilling resistance.

[0050] III. Specific structure of rotary drive mechanism 2:

[0051] Gear housing 21 and drive motor 27:

[0052] The rotary drive mechanism 2 includes a gear housing 21, and two drive motors 27 are fixedly connected to the rear end face of the gear housing 21. The front end face of the housing of the drive motor 27 is fixedly connected to the rear end of the housing of the gear housing 21, and the two drive motors 27 are arranged in a left-right mirror symmetrical manner with the axis of the gear housing 21 as the base point.

[0053] Drive gear 28 and driven gear 22:

[0054] Drive gears 28 are respectively provided on the left and right sides of the inner cavity of gear housing 21. The drive gears 28 are connected to the output shaft of drive motor 27 through a coupling.

[0055] A driven gear 22 is rotatably mounted in the central region of the inner cavity of the gear housing 21, and the driven gear 22 meshes with the drive gear 28 for transmission.

[0056] Planetary gear carrier 25 and gear ring 26:

[0057] An end cap 23 is fixedly connected to the front end face of the gear housing 21, and a planetary gear carrier 25 is fixedly connected to the front end face of the end cap 23. Three to five planetary gears 24 are rotatably arranged in a circular array within the inner cavity of the planetary gear carrier 25, and a gear ring 26 is rotatably arranged between the end cap 23 and the planetary gear carrier 25. The inner teeth of the gear ring 26 mesh with the teeth of the planetary gears 24, and the outer surface of the gear ring 26 is fixedly connected to the inner wall of the rear end port of the main sleeve 11.

[0058] IV. Specific structure of high-pressure injection pipe 3:

[0059] High-pressure grouting pump 31: The high-pressure injection pipe 3 includes a high-pressure grouting pump 31, which is responsible for providing high-pressure grouting materials.

[0060] Arched protective cover 32 and grouting delivery pipe 33:

[0061] The high-pressure grouting pump 31 has multiple arched protective covers 32 connected to its delivery port via a liquid slip ring. These arched protective covers 32 cover the outer surface of the grouting delivery pipe 33. The outer surface of the grouting delivery pipe 33 is fixedly connected to the outer ring surface of the main sleeve 11, thus integrating the grouting material with the injection outer pipe mechanism 1. Multiple circular holes for grout discharge are provided on the outer surfaces of both the arched protective covers 32 and the grouting delivery pipe 33. These holes are coaxially aligned with the circular holes on the grouting delivery pipe 33, allowing the grouting material to be evenly injected into the silt.

[0062] V. Specific structure of drill pipe 4:

[0063] Drill pipe components:

[0064] The drill rod 4 consists of at least two sections, and each section of the drill rod 4 is connected by a joint and screws, which makes it easy to adjust the length of the drill rod 4 according to actual needs.

[0065] Drill pipe connection and transmission:

[0066] Finally, a helical gear 5 is fixedly connected to the rear end of the side drill rod 4. The rear end of the helical gear 5 is fixedly connected to the front end face of the driven gear 22. The outer ring teeth of the helical gear 5 mesh with the teeth of the planetary gear 24 to realize the rotation drive mechanism 2 to drive the drill rod 4.

[0067] VI. System Installation and Usage:

[0068] System installation:

[0069] Assemble the injection outer pipe mechanism 1, the rotary drive mechanism 2, and the high-pressure injection pipe 3 according to the above structure to ensure that the components are tightly connected and the transmission is smooth; connect the gear housing 21 to the output end of the pile driver on the side wall away from the high-pressure grouting pump 31 with high-strength bolts to realize the integration of the entire system with the pile driver.

[0070] System usage:

[0071] The drive motor 27 is started, and through the transmission of the drive gear 28, driven gear 22, planetary gear 24, and helical gear 5, the drill rod 4 is driven to rotate and drill in the silt. At the same time, the high-pressure grouting pump 31 is started, and grouting material is injected into the silt at high pressure through the grouting delivery pipe 33 and the round holes on the arched protective cover 32 to reinforce the silt. During the drilling process, the silt is discharged through the mud discharge trough 12 to reduce drilling resistance. The crushing ring 14 and the alloy cutter head 15 crush hard objects in the silt to improve drilling efficiency.

[0072] Example 1: High-pressure injection and filling system for soft soil layers:

[0073] This embodiment optimizes the high-pressure injection and filling system for silt reinforcement, taking into account the characteristics of soft soil strata. Soft soil strata typically have low bearing capacity, high compressibility, and low permeability, thus requiring corresponding adjustments in system design and grouting material selection.

[0074] Adjustment of the injection outer tube mechanism:

[0075] The length and diameter of the main casing 11 and the alloy casing 13 are adjusted according to the depth and characteristics of the soft soil layer to ensure that the system can drill stably and withstand the lateral pressure of the soft soil layer; the number and arrangement of the alloy cutter heads 15 on the breaking ring 14 are optimized to improve the breaking efficiency in the soft soil layer while reducing the disturbance to the soil layer.

[0076] Strengthening of rotary drive mechanism:

[0077] The power and speed of the drive motor 27 are adjusted to suit the torque and speed required for drilling in soft soil formations; the transmission ratio of the planetary gear carrier 25 and the gear ring 26 is optimized to ensure that the drill rod 4 can rotate stably in soft soil formations.

[0078] Improvements to the high-pressure injection pipe:

[0079] The pressure and flow rate of the high-pressure grouting pump 31 are adjusted to suit the permeability and reinforcement effect of the grouting material in the soft soil layer. The size and arrangement of the holes on the grouting delivery pipe 33 and the arched protective cover 32 are optimized to ensure that the grouting material can penetrate evenly into the soft soil layer.

[0080] Grouting material selection:

[0081] Choose grouting materials suitable for soft soil layers, such as cement grout, cement mortar, or chemical grouting materials, to improve reinforcement effect and durability.

[0082] Example 2: Silt reinforcement system for silt containing large rocks or hard soil layers:

[0083] This embodiment addresses the need for silt reinforcement containing large rocks or hard soil layers, and improves and optimizes the original system. These types of soil layers typically place higher demands on drilling equipment and grouting materials, thus requiring corresponding adjustments in system design and material selection.

[0084] Reinforcement of the injection outer tube mechanism:

[0085] The wall thickness and material of the main sleeve 11 and the alloy sleeve 13 are reinforced to improve the system's compressive strength and wear resistance; the alloy cutter head 15 on the crushing ring 14 is made of a harder material and the number and sharpness of the cutter heads are increased to improve the ability to crush large rocks or hard soil layers.

[0086] Rotary drive mechanism upgrade:

[0087] The drive motor 27 is selected as a higher power model to provide sufficient torque to cope with the drilling resistance of hard soil layers; the transmission components of the planetary gear carrier 25 and gear ring 26 are made of more wear-resistant materials to extend their service life.

[0088] Improvements to the high-pressure injection pipe:

[0089] A higher-pressure model of grouting pump 31 is selected to ensure that the grouting material can penetrate into the cracks and pores in the hard soil layer. The grouting delivery pipe 33 is made of a more pressure-resistant material and the pipe wall thickness is increased to prevent bursting during the grouting process.

[0090] Grouting material selection and proportioning:

[0091] Choose grouting materials suitable for hard soil layers, such as high-strength cement mortar or chemical grouting materials. Adjust the grouting material ratio according to the characteristics of the soil layer and the reinforcement requirements to improve the reinforcement effect and durability.

[0092] This invention is not limited to the preferred embodiments described above. Anyone should understand that structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention. Finally, it should be noted that the structures, proportions, sizes, etc., illustrated in the accompanying drawings are only for illustrative purposes to aid those skilled in the art and are not intended to limit the implementation of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effects and objectives of this application, should still fall within the scope of the technical content disclosed in this application.

Claims

1. A high-pressure injection and filling system for sludge reinforcement, comprising an injection outer pipe mechanism (1), characterized in that: A drill rod (4) is rotatably arranged in the inner cavity of the injection outer tube mechanism (1), and a rotary drive mechanism (2) is provided at the rear end of the injection outer tube mechanism (1) and the drill rod (4). A high-pressure injection pipe (3) is provided on the outer surface of the injection outer tube mechanism (1). The injection outer tube mechanism (1) includes a main sleeve (11), a multi-section alloy sleeve (13) snapped at the front end of the main sleeve (11), and a break ring (14) snapped at the front end of the alloy sleeve (13). The rear end of the alloy sleeve (13) and the rear end of the break ring (14) are fixedly connected with insert rings (19) that are respectively inserted into the interior of the alloy sleeve (13) and the interior of the main sleeve (11). The outer ring surface of the insert ring (19) is fixed with 6-8 protrusions (16) in a ring array. The front end of the main sleeve (11) and the front end of the alloy sleeve (13) are both provided with grooves (17) for the coupling and insertion of the protrusion (16); wherein, the connection position between the crushing ring (14) and the alloy sleeve (13), the connection position between the alloy sleeves (13) and each other, and the connection position between the alloy sleeve (13) and the main sleeve (11) are all screwed with 6-8 countersunk screws (18) arranged in a ring array; The rotary drive mechanism (2) includes a gear housing (21), two drive motors (27) fixedly connected to the rear end face of the gear housing (21), and drive gears (28) located on the left and right sides of the inner cavity of the gear housing (21) and connected to the output shafts of the drive motors (27) respectively via couplings. A driven gear (22) that meshes with the drive gears (28) is rotatably arranged in the central area of ​​the inner cavity of the gear housing (21). An end cover is fixedly connected to the front end face of the gear housing (21). (23) The end face of the end cap (23) is fixedly connected to a planetary gear carrier (25). 3-5 planetary gears (24) are arranged in a ring array in the inner cavity of the planetary gear carrier (25). A toothed ring (26) is rotatably arranged between the end cap (23) and the planetary gear carrier (25). The inner teeth of the toothed ring (26) mesh with the teeth of the planetary gears (24). The outer surface of the toothed ring (26) is fixedly connected to the inner wall of the rear end port of the main sleeve (11). The high-pressure injection pipe (3) includes a high-pressure grouting pump (31), a multi-section arched protective cover (32) connected to the delivery port of the high-pressure grouting pump (31) via a liquid slip ring, and a multi-section grouting delivery pipe (33) covering the outer surface of the arched protective cover (32), and the outer surface of the grouting delivery pipe (33) is fixedly connected to the outer ring surface of the main sleeve (11). The drill rod (4) consists of at least two sections, and a helical gear (5) is fixedly connected to the rear end of the drill rod (4). The rear end of the helical gear (5) is fixedly connected to the front end face of the driven gear (22). The outer ring teeth of the helical gear (5) mesh with the teeth of the planetary gear (24) for transmission.

2. The high-pressure injection and filling system for sludge reinforcement according to claim 1, characterized in that: A mud unloading trough (12) is provided through the side wall of the main sleeve (11).

3. The high-pressure injection and filling system for sludge reinforcement according to claim 1, characterized in that: A sealing ring is provided between the outer surface of the insert ring (19) and the front end port of the alloy sleeve (13) and the front end port of the main sleeve (11).

4. The high-pressure injection and filling system for sludge reinforcement according to claim 1, characterized in that: The front end edge of the crushing ring (14) is inlaid with several combined alloy cutter heads (15), and the alloy cutter heads (15) are arranged in a ring array with the axis of the crushing ring (14) as the base point.

5. The high-pressure injection and filling system for sludge reinforcement according to claim 1, characterized in that: The front end face of the outer shell of the drive motor (27) is fixedly connected to the rear end of the outer shell of the gear housing (21). The drive motors (27) are all arranged in a left-right mirror symmetrical manner with the axis of the gear housing (21) as the base point.

6. The high-pressure injection and filling system for sludge reinforcement according to claim 1, characterized in that: The top surface of the gear housing (21) is fixedly connected to the bottom surface of the high-pressure grouting pump (31) by several bolts.

7. The high-pressure injection and filling system for sludge reinforcement according to claim 1, characterized in that: The gear housing (21) has a shaft seat installed on the rear end side wall of the inner cavity for the drill rod (4) to rotate through the rear end of the driven gear (22).

8. The high-pressure injection and filling system for sludge reinforcement according to claim 1, characterized in that: The drill rod (4) is composed of multiple sections of auger rod, and each section of auger rod is connected by a joint and screws.

9. The high-pressure injection and filling system for sludge reinforcement according to claim 1, characterized in that: The outer surfaces of the arched protective cover (32) and the grouting conveying pipe (33) are provided with multiple round holes for grout discharge, and the round holes on the arched protective cover (32) and the round holes on the grouting conveying pipe (33) are coaxially arranged.

10. A high-pressure injection and filling system for sludge reinforcement according to claim 1, characterized in that: The gear housing (21) is connected to the output end of the pile driver by high-strength bolts on the side wall away from the high-pressure grouting pump (31).

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