MJS pile machine capable of preventing blockage of sludge discharge port

Abstract

The utility model relates to an MJS pile machine capable of preventing a mud discharge port from being blocked, which comprises a mud treatment port, a mud box, a mud discharge pipe arranged in a perforated pipe, a pressure detector arranged at the lower half part of the perforated pipe, a mud discharge port arranged on the upper side surface of the pressure detector, a high-pressure cement slurry spraying device arranged on the lower side surface of the pressure detector, and a pipe groove arranged in the perforated pipe and close to one side of the mud discharge port, a cleaning box is arranged at the bottom of the pipe groove, a cleaning assembly is arranged in the cleaning box, and a filtering structure is installed on the outer side of the sludge outlet. Slurry entering the mud discharging pipe is limited through the filtering structure, the situation that mud or other large impurities block the mud discharging pipe and affect the using effect and the service life of the MJS pile machine is avoided, the cleaning assembly is used for cleaning the mud accumulated on the filtering structure, and normal operation of the device is facilitated.

Description

Technical Field

[0001] This utility model belongs to the field of MJS pile driver technology, specifically relating to an MJS pile driver that prevents clogging of the mud discharge port. Background Technology

[0002] The pipe jacking working shaft is the site for installing jacks and conducting pipe lowering and jacking operations before pipe jacking begins. A key focus during pipe jacking shaft construction is the foundation pit support. Traditional jet grouting removes mud by allowing it to drain naturally onto the surface through gaps around the drill pipe. However, mud removal at depths is difficult because the increased ground pressure around the drill pipe and high-pressure jet nozzle at extremely deep depths often leads to decreased jetting efficiency, thus reducing the reinforcement effect and reliability. Furthermore, increased ground pressure during construction can cause surface uplift, which is detrimental to the protection of cable culverts. The MJS method equipment features an adjustable mud removal port at the drill bit and sensors that measure ground pressure, allowing for reasonable control of deep mud removal and ground pressure, stabilizing the ground pressure and reducing the possibility of surface deformation during construction. Compared with the traditional jet grouting process, the MJS method reduces the impact of construction on the surrounding environment, which is very beneficial to the protection of the surrounding environment. The MJS piling machine is equipped with a mud discharge device. Large mud lumps or other impurities will block the mud discharge port, which will affect the life and working efficiency of the MJS piling machine. Common treatment methods include high-pressure water spraying to dilute large mud lumps, but this cannot solve the problem of mud discharge port blockage.

[0003] In summary, existing technologies suffer from the problem of easy clogging of the mud discharge port, which affects the performance and service life of the MJS piling machine. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of the present invention, to avoid obscuring the purpose of these documents, and such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Therefore, the purpose of this utility model is to provide an MJS piling machine that prevents clogging of the mud discharge port, thus solving the problem of easy clogging of the mud discharge port in the existing technology, which affects the performance and service life of the MJS piling machine. This utility model provides an MJS piling machine that prevents clogging of the mud discharge port, comprising a mud treatment port, a mud tank, a mud discharge pipe inside a porous pipe, a pressure sensor located in the lower half of the porous pipe, the mud discharge port on the upper side of the pressure sensor, a high-pressure cement slurry injection device on the lower side of the pressure sensor, a pipe groove inside the porous pipe near the mud discharge port, a cleaning box at the bottom of the pipe groove containing cleaning components, and a filter structure installed on the outside of the mud discharge port.

[0006] Optionally, a high-pressure water spray pipe is provided inside the pipe trench. The high-pressure water spray pipe is connected to the bottom bend of the horizontal pipe and the sludge discharge pipe. The cleaning box is located outside the high-pressure water spray pipe, and its bottom is a cavity.

[0007] Optionally, the cleaning box contains a cleaning assembly, which includes an air pump connected to a pile block via a telescopic column. The pile block has a scraper on its side near the high-pressure water spray pipe.

[0008] Optionally, the scraper has a downward tilt angle of 45°, the pile block is a square block with stainless steel on the outside and solid wood on the inside, the air pump is connected to the controller, and the other side is welded to the top of the cleaning box.

[0009] Optionally, the lower half of the porous tube that is adapted to the tube groove is provided with a base, the cross-section of the base is adapted to the cross-section of the tube groove, and the outer side of the base is an arc-shaped surface.

[0010] Optionally, the scraper and filter structure are adapted together. The scraper is made of stainless steel and is fixed to the pile block by bolts. The bottom of the scraper is flush with the bottom of the pile block.

[0011] Optionally, the groove below the high-pressure water spray pipe is solid, and the filter structure includes an outer frame and a filter screen. The filter structure is adapted to the sludge discharge port. The filter screen is located on the outer side of the outer frame. A fixing plate is welded on the top of the outer frame. The upper fixing plate is an L-shaped plate. A bottom plate is welded below the outer frame. Bolt holes are provided on both the bottom plate and the upper fixing plate. The filter structure is fixed to the outside of the sludge discharge port by bolt connection.

[0012] Optionally, the filter screen is made of stainless steel.

[0013] In summary, this utility model has at least one of the following beneficial effects:

[0014] This utility model restricts the flow of thin mud into the mud discharge pipe through a filter structure, preventing soil or other large impurities from clogging the discharge pipe and affecting the performance and service life of the MJS pile driver. The air pump controls the telescopic column to move up and down, so that while the scraper cleans the filter screen, large pieces of soil will fall off. To prevent large pieces of soil from falling back into the filter screen and clogging it, the pile block will squeeze the large pieces of soil to disperse them. The high-pressure water spray pipe can wash the base to prevent soil accumulation. The filter structure is detachable and easy to replace. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of an MJS pile driver for preventing clogging of the mud discharge port according to this utility model;

[0017] Figure 2 This is a schematic diagram of the non-operational mud discharge port of an MJS pile driver designed to prevent mud discharge port blockage according to this utility model.

[0018] Figure 3 This is a schematic diagram of the working of the mud discharge port of an MJS pile driver to prevent clogging of the mud discharge port according to the present invention;

[0019] Figure 4 This is a schematic diagram of a filtration device for an MJS pile driver to prevent clogging of the sludge discharge port according to the present invention.

[0020] List of symbols in the attached diagram: 1. Mud treatment port; 2. Mud tank; 3. Mud discharge pipe; 4. Porous pipe; 5. Mud discharge outlet; 6. Reinforcement trench; 7. High-pressure cement grout; 8. Pressure test; 9. Pipe trench; 10. High-pressure water spray pipe; 11. Air pump; 12. Cleaning box; 13. Telescopic column; 14. Pile block; 15. Base; 16. Base plate; 17. Outer frame; 18. Filter screen; 19. Upper fixing plate; 20. Scraper. Implementation

[0021] The following is in conjunction with the appendix Figure 1-4 This utility model will be described in further detail below.

[0022] Example 1, refer to Figure 1-4In this embodiment, to address the problem of easy clogging of the mud discharge port in existing technologies, which affects the performance and service life of the MJS piling machine, this utility model discloses an MJS piling machine to prevent clogging of the mud discharge port. It includes a mud tank 2, with a mud treatment port 1 on the bottom side of the mud tank 2. The mud tank 2 is used to receive mud discharged from the mud discharge pipe 3. The mud discharge pipe 3 is located inside a porous pipe 4. The junction of the mud discharge pipe 3 and the mud discharge port 5 is connected by a horizontal pipe and a high-pressure water jet pipe 10 inside a pipe groove 9. Below the mud discharge pipe 3 is a pressure sensor 8, and below the pressure sensor 8 is a high-pressure cement slurry 7 injection device. Both the high-pressure cement slurry 7 and the pressure sensor 8 are on the porous pipe 4. An outer frame 17 is fitted onto the mud discharge port 5. A base plate 16 and an upper fixing plate 19 are provided above and below the outer frame 17. The thickness of the base plate 16 is less than 0.5 cm. The m is to ensure stable installation while avoiding excessive thickness of the base plate 16, which could affect the filtration effect. The fixed plate 19 is an inverted L-shaped plate to ensure that the bolts are installed without causing unnecessary pressure on the scraper 20. The scraper 20, filter screen 18, and pile block 14 are all made of stainless steel to ensure the service life of the equipment, avoid one-time projects, and increase the service life of the equipment. The air pump 11 and the high-pressure water spray pipe 10 are both connected to the controller. The controller in this application is a PLC, which controls the water spray and the cleaning of the filter screen 18. An ultrasonic flow meter is installed on the outer sludge discharge pipe 3 to detect the liquid flow rate inside the sludge discharge pipe 3. This flow meter is connected to the controller.

[0023] The lower half of the porous tube 4, which is adapted to the tube groove 9, is equipped with a base 15. The cross-section of the base 15 is adapted to the cross-section of the tube groove 9 to facilitate the squeezing and dispersing of large mud clods, preventing them from clogging the filter screen 18 again. The outer side of the base 15 is curved to facilitate the extruded mud to fall along the curved surface, preventing it from accumulating on the base 15. The scraper 20 is tilted downward at a 45° angle to ensure that mud does not remain on the scraper 20 while ensuring stability.

[0024] Specific implementation principle: When using this utility model, firstly, the outer frame 17 is fitted onto the sludge discharge port 5, and the bottom plate 16 and the upper fixing plate 19 are fixed with bolts to ensure the stability and position of the filter screen 18, thus preventing the scraper 20 from being unable to process the outer surface of the filter screen 18. Then, the operation is carried out. The ultrasonic flow meter monitors the internal flow rate of the sludge discharge pipe 3 in real time. When the liquid flow rate is within the normal range, the air pump 11 and the high-pressure water spray pipe 10 remain unchanged and do not need to move, and the sludge discharge pipe 3 operates normally. When the flow rate is lower than the set normal range, the air pump 11 starts, the telescopic column 13 extends and retracts, driving the pile block 14 to move up and down, crushing and dispersing the large pieces of mud or other large impurities scraped off by the scraper 20. At the same time, the high-pressure water spray pipe 10 is started to flush the crushed impurities and mud. The entire flushing process is set to a fixed time and controlled by the controller. After cleaning, the sludge discharge pipe 3 resumes operation and continues to monitor the flow rate. If the flow rate is still too low after multiple cleanings, the controller will issue a warning message.

[0025] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A MJS pile machine for preventing the clogging of a discharge port, comprising a slurry treatment port (1), a slurry tank (2), a slurry discharge pipe (3) inside a porous pipe (4), a pressure detector (8) provided at the lower half of the porous pipe (4), a discharge port (5) on the upper side of the pressure detector (8), and a high-pressure cement slurry (7) injection device on the lower side of the pressure detector (8), characterized in that, It also includes the pipe groove (9) inside the porous pipe (4) near the sludge discharge port (5) side, the pipe groove (9) bottom is provided with cleaning box (12), the cleaning box (12) is inside cleaning assembly, the sludge discharge port (5) outside is provided with filter structure.

2. A MJS pile machine for preventing the clogging of the sludge discharge port according to claim 1, wherein The inside of the pipe groove (9) is provided with high pressure water jet pipe (10), the high pressure water jet pipe (10) is connected through the horizontal pipe and the bottom of the sludge discharge pipe (3) turning place, the cleaning box (12) is outside the high pressure water jet pipe (10), the bottom is a cavity.

3. A MJS pile machine for preventing the clogging of the sludge discharge port according to claim 1, characterized in that, The inside of the cleaning box (12) is cleaning assembly, the cleaning assembly includes air pump (11), the air pump (11) is connected through telescopic column (13) and pile block (14), the side of the pile block (14) near the high pressure water jet pipe (10) is provided with scraper (20).

4. The MJS pile driver of claim 3, wherein, The downward inclination angle of the scraper (20) is 45°, the pile block (14) is a square block with stainless steel outside and solid wood inside, the air pump (11) is connected with the controller, and the other side is welded on the top of the cleaning box (12).

5. A MJS pile machine to prevent the pile discharge port from being clogged according to claim 1, wherein The bottom half of the porous pipe (4) is provided with base (15) which is adapted to the pipe groove (9), the cross section of the base (15) is adapted to the cross section of the pipe groove (9), and the outer side of the base (15) is arc surface.

6. A MJS pile machine to prevent the pile discharge port from being clogged according to claim 4, wherein The scraper (20) is adapted to the filter structure, the scraper (20) is made of stainless steel and is fixed on the pile block (14) by bolts, and the bottom of the scraper (20) is flush with the bottom of the pile block (14).

7. A MJS pile machine to prevent the pile discharge port from being clogged according to claim 2, wherein The pipe groove (9) below the high pressure water jet pipe (10) is solid, the filter structure includes outer frame (17) and filter screen (18), the filter structure is adapted to the sludge discharge port (5), the filter screen (18) is arranged on the outer side of the outer frame (17), the upper fixed plate (19) is welded on the upper side of the outer frame (17), the upper fixed plate (19) is L-shaped plate, the bottom plate (16) is welded on the lower side of the outer frame (17), and the bolt holes are arranged on the upper fixed plate (19) and the bottom plate (16), the filter structure is fixed on the outside of the sludge discharge port (5) by bolt connection.

8. A MJS pile machine to prevent the pile discharge opening from being blocked according to claim 7, characterized in that, The filter screen (18) is made of stainless steel.

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