Pipe jacking construction slurry circulation environment-friendly treatment system

Abstract

The utility model provides a pipe-jacking construction slurry circulation environment-friendly treatment system which comprises a placing table, an outer barrel and a settling barrel which are arranged side by side are fixedly installed above the placing table, a silt feeding pipe is arranged above an opening in the top of the outer barrel, the bottom of the outer barrel penetrates to the lower portion of the placing table to be provided with a discharging opening, and the discharging opening is communicated with the settling barrel. A rotary drum provided with a plurality of filtering holes is arranged in the outer drum, and a cleaning assembly is arranged between the rotary drum and the outer drum. Through arrangement of the cleaning assembly, a first spiral cleaning frame and a second spiral cleaning frame can clean the inner wall of the outer cylinder and the inner wall of the rotating cylinder respectively, so that accumulation of silt on the inner wall of the outer cylinder and the inner wall of the rotating cylinder is effectively reduced, blockage of filtering holes is reduced, and the filtering effect and filtering efficiency of the silt are guaranteed; and by arranging the water pump and the silt pump, cyclic utilization of slurry is achieved, clear water on the upper layer is pumped out and used for conveying silt again, the precipitated silt is also pumped out and enters the outer cylinder again to be filtered, and waste of the slurry is reduced.

Description

Technical Field

[0001] This utility model relates to the field of mud treatment technology, specifically to an environmentally friendly mud recycling and treatment system for pipe jacking construction. Background Technology

[0002] During pipe jacking construction, a large amount of waste slurry is generated because the main transport media are mud and water. Measures are often taken in mud-water balance pipe jacking construction to treat the waste slurry generated during the construction process in order to prevent the waste slurry from polluting the environment.

[0003] Utility model patent application number CN202420374146.1 discloses a mud treatment device for pipe jacking construction, including an outer cylinder, a sedimentation tank on one side of the outer cylinder, a through hole at the bottom of the outer cylinder, a rotating cylinder inside the outer cylinder, a connecting pipe fixedly connected to the top of the rotating cylinder, the connecting pipe penetrating the top of the sedimentation tank, a connecting frame fixedly connected to the bottom of the rotating cylinder, an annular drainage component at the bottom of the connecting frame, and a driven gear fixedly connected to the outer surface of the connecting pipe, the driven gear being located at the top of the outer cylinder. The advantage of this utility model is that when the rotating cylinder rotates, the separated mud mixes with the mud in the rotating cylinder, forming a mud ball. When the mud ball is large enough, a drive motor flips the discharge gate, opening it to discharge the mud.

[0004] The aforementioned patent centrifuges the mud using a rotating drum. After centrifugation, water and a small amount of mud enter the outer drum through the filter holes on the rotating drum. As the rotating drum rotates inside the outer drum, the mud and sand inside adhere to its inner wall under the action of centrifugal force. This adhered mud and sand acts like layers of accumulated "barriers," gradually filling the gaps in the filter holes and causing them to become clogged. Furthermore, the fine mud and sand thrown out by the rotating drum also adhere to the inner wall of the outer drum. At the same time, the centrifugal force makes it difficult for the mud and sand to settle naturally, but instead it continues to circulate tightly against the inner wall and cannot settle to the bottom of the drum. Utility Model Content

[0005] To address the shortcomings of existing technologies, the purpose of this utility model is to provide an environmentally friendly mud recycling and treatment system for pipe jacking construction to solve the problems mentioned in the background. This utility model has a novel structure. Through the arrangement of cleaning components, the first spiral cleaning frame and the second spiral cleaning frame can clean the inner wall of the outer cylinder and the inner wall of the rotating cylinder respectively, effectively reducing the accumulation of mud and sand on the inner wall of the outer cylinder and the inner wall of the rotating cylinder, reducing the clogging of filter holes, and ensuring the filtration effect and efficiency of mud and sand. The setting of water pump and mud pump realizes the recycling of mud and sand. The upper layer of clean water is pumped out and reused for mud and sand transportation, and the settled mud and sand are also pumped out and re-enter the outer cylinder for filtration treatment, reducing mud and sand waste.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a slurry recycling and environmentally friendly treatment system for pipe jacking construction, comprising a placement platform, an outer cylinder and a sedimentation tank fixedly installed side by side on the top of the placement platform, a slurry feed pipe provided above the top opening of the outer cylinder, a discharge port extending from the bottom of the outer cylinder to the bottom of the placement platform, a rotating cylinder with multiple filter holes inside the outer cylinder, a cleaning assembly provided between the rotating cylinder and the outer cylinder, the cleaning assembly comprising an annular block rotatably fitted on the inner wall of the top opening of the outer cylinder, a rotating strip located inside the outer cylinder mounted on the periphery of the annular block, a first spiral cleaning frame fitted with the inner wall of the outer cylinder mounted at the bottom of the rotating strip, and a second spiral cleaning frame fitted with the inner wall of the rotating cylinder mounted at the bottom of the rotating strip.

[0007] Furthermore, a motor is fixedly installed above the top of the outer cylinder, and bevel gears are installed on both the output shaft of the motor and the periphery of the annular block, with the two bevel gears meshing with each other.

[0008] Furthermore, an annular frame is fixedly installed on the bottom wall of the outer cylinder, and the inner wall of the annular frame is fixedly installed on the outer wall of the discharge port located at the inner wall end of the outer cylinder. The outer diameter of the discharge port at the bottom of the rotating cylinder is smaller than the inner diameter of the discharge port.

[0009] Furthermore, a first annular protective frame is fixedly installed at the bottom of the rotating drum. The first annular protective frame is rotatably fitted above the annular frame. A connecting block is installed at the bottom of the first spiral cleaning frame. A second annular protective frame is rotatably fitted below the annular frame on one side of the connecting block.

[0010] Furthermore, the annular frame is rotatably fitted with a plurality of first spiral bevel gears, and the lower side of the first annular guard frame and the upper side of the second annular guard frame are both equipped with second spiral bevel gears. The first spiral bevel gears are located between the upper and lower second spiral bevel gears and mesh with them.

[0011] Furthermore, a water pump is fixedly installed above the sedimentation tank, the water pump's inlet pipe extends into the interior of the sedimentation tank, and the water pump's outlet pipe is equipped with a water delivery pipe connected to it. The water delivery pipe is installed on and connected to the sludge feed pipe.

[0012] Furthermore, a conveying pipe is installed between the outer cylinder and the bottom of the sedimentation tank, and a sludge pump is fixedly installed above the placement platform. The inlet of the sludge pump is equipped with a first conveying pipe that is connected to the bottom of the sedimentation tank, and the outlet of the sludge pump is equipped with a second conveying pipe that is connected to the inlet of the sludge feed pipe.

[0013] Furthermore, a baffle is slidably fitted on the inner wall of the discharge port, and a fixing frame is installed at the bottom of the placement platform. A screw that rotates with the bottom of the baffle is threaded in the middle of the fixing frame.

[0014] The beneficial effects of this utility model are:

[0015] 1. Through the arrangement of the cleaning components, the first spiral cleaning frame and the second spiral cleaning frame can clean the inner wall of the outer cylinder and the inner wall of the rotating cylinder respectively, effectively reducing the accumulation of mud and sand on the inner wall of the outer cylinder and the inner wall of the rotating cylinder, reducing the clogging of the filter holes, and ensuring the filtration effect and filtration efficiency of mud and sand. The transmission structure composed of the annular frame, the first spiral bevel gear and the second spiral bevel gear ensures the stable rotation of the rotating cylinder during the cleaning process.

[0016] 2. This utility model achieves the recycling of mud by setting up water pumps and mud pumps. The upper layer of clear water is pumped out and reused for mud and sand transportation. The settled mud and sand are also pumped out and re-enter the outer cylinder for filtration treatment, which reduces mud waste, lowers construction costs, and also reduces environmental impact. The design includes a discharge port and baffle structure. The movement of the baffle can be easily controlled by rotating the screw, thereby realizing the discharge of settled mud and sand impurities in the rotating cylinder. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a pipe jacking construction mud circulation and environmental protection treatment system according to the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the outer cylinder and the interior of the sedimentation tank of this utility model;

[0019] Figure 3 This is a schematic diagram of the cleaning component of this utility model;

[0020] Figure 4 This is a schematic diagram of the structure connecting the ring frame and the upper and lower protective frames of this utility model;

[0021] Figure 5 This is a schematic diagram of the overall side sectional view of this utility model;

[0022] Figure 6 This utility model Figure 5 - Enlarged structural diagram at point A.

[0023] In the diagram: 1. Placement platform; 2. Outer cylinder; 3. Sedimentation tank; 4. Sludge feed pipe; 5. Discharge port; 6. Cleaning assembly; 601. Annular block; 602. Rotating bar; 603. Motor; 604. Bevel gear; 605. First spiral cleaning frame; 606. Second spiral cleaning frame; 607. Annular frame; 608. First annular guard frame; 609. Connecting block; 610. Second annular guard frame; 611. Second spiral bevel gear; 612. First spiral bevel gear; 7. Rotary drum; 8. Water pump; 9. Water supply pipe; 10. Conveying pipe; 11. Sludge pump; 12. First conveying pipe; 13. Second conveying pipe; 14. Fixing frame; 15. Baffle; 16. Screw. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] Please refer to Figures 1 to 6 This utility model provides a technical solution: a slurry recycling and environmental protection treatment system for pipe jacking construction, including a placement platform 1. An outer cylinder 2 and a sedimentation tank 3 are fixedly installed side by side on the upper part of the placement platform 1. A mud and sand feed pipe 4 is provided above the top opening of the outer cylinder 2. A discharge port 5 is provided at the bottom of the outer cylinder 2 extending to the lower part of the placement platform 1. A rotating cylinder 7 with multiple filter holes is provided inside the outer cylinder 2. A cleaning component 6 is provided between the rotating cylinder 7 and the outer cylinder 2. The cleaning component 6 includes an annular block 601 that rotatably engages with the inner wall of the top opening of the outer cylinder 2. A rotating strip 602 located inside the outer cylinder 2 is installed around the annular block 601. A first spiral cleaning frame 605 that engages with the inner wall of the outer cylinder 2 is installed at the bottom of the rotating strip 602. A second spiral cleaning frame 606 that engages with the inner wall of the rotating cylinder 7 is installed at the bottom of the rotating strip 602.

[0026] In this embodiment, a motor 603 is fixedly installed above the top of the outer cylinder 2. The output shaft of the motor 603 and the circumference of the annular block 601 are both equipped with bevel gears 604, which mesh with each other. An annular frame 607 is fixedly installed on the bottom wall of the outer cylinder 2. The inner wall of the annular frame 607 is fixedly installed on the outer wall of the discharge port 5 located at the inner end of the outer cylinder 2. The outer diameter of the discharge port at the bottom of the rotating drum 7 is smaller than the inner diameter of the discharge port 5. A first annular protective frame 608 is fixedly installed at the bottom of the rotating drum 7. The first annular protective frame 608 rotates... Above the annular frame 607, the bottom of the first spiral cleaning frame 605 is equipped with a connecting block 609. A second annular guard frame 610 is rotatably fitted on one side of the connecting block 609 and below the annular frame 607. A plurality of first spiral bevel gears 612 are rotatably fitted around the annular frame 607. The lower side of the first annular guard frame 608 and the upper side of the second annular guard frame 610 are both equipped with second spiral bevel gears 611. The first spiral bevel gears 612 are located between the upper and lower second spiral bevel gears 611 and mesh with them.

[0027] Specifically, after the motor 603 starts, the bevel gear 604 on its output shaft meshes with the bevel gear 604 on the annular block 601, driving the annular block 601 to rotate. The rotation of the annular block 601 causes the rotating bar 602 to rotate accordingly, which in turn drives the first spiral cleaning frame 605 and the second spiral cleaning frame 606 to rotate. The first spiral cleaning frame 605 cooperates with the inner wall of the outer cylinder 2 to clean the mud and sand adhering to the inner wall of the outer cylinder 2, preventing the mud and sand from accumulating on the inner wall of the outer cylinder 2. The second spiral cleaning frame 606 cooperates with the inner wall of the rotating drum 7 to clean the mud and sand adhering to the inner wall of the rotating drum 7, reducing the mud and sand clogging the filter holes. At the same time, the first annular guard frame 608 and the second annular guard frame 610 rotate above and below the annular frame 607, respectively. The first spiral bevel gear 612 meshes with the upper and lower second spiral bevel gears 611, further enhancing the transmission effect of the cleaning assembly and making the cleaning more thorough.

[0028] In this embodiment, a water pump 8 is fixedly installed above the sedimentation tank 3. The inlet pipe of the water pump 8 extends into the interior of the sedimentation tank 3. The outlet pipe of the water pump 8 is connected to a water delivery pipe 9. The water delivery pipe 9 is installed on and connected to the sludge feed pipe 4. A conveying pipe 10 is installed between the outer cylinder 2 and the bottom of the sedimentation tank 3. A sludge pump 11 is fixedly installed above the placement platform 1. The inlet of the sludge pump 11 is connected to a first conveying pipe 12 that is connected to the bottom of the sedimentation tank 3. An anti-clogging net is provided at the connection between the first conveying pipe 12 and the sedimentation tank 3. The outlet of the sludge pump 11 is connected to a second conveying pipe 13 that is connected to the inlet of the sludge feed pipe 4. A baffle 15 is slidably fitted on the inner wall of the discharge port 5. A fixing frame 14 is installed at the bottom of the placement platform 1. A screw 16 that rotates with the bottom of the baffle 15 is threaded in the middle of the fixing frame 14.

[0029] Specifically, the liquid and fine particles of silt filtered by the rotating drum 7 enter the settling tank 3 through the conveying pipe 10 between the outer drum 2 and the settling tank 3, where sedimentation and separation take place. The water pump 8 extracts the clear water from the upper layer of the settling tank 3 and transports it to the silt feed pipe 4 through the water pipe 9, realizing the recycling of the slurry. The silt pump 11 extracts the silt settled at the bottom of the settling tank 3. The anti-clogging net set at the connection between the conveying pipe 12 and the settling tank 3 reduces the possibility of large impurities clogging the silt pump 11. The silt is then transported to the silt feed pipe 4 through the first conveying pipe 12 and the second conveying pipe 13, and re-enters the outer drum 2 for filtration. When it is necessary to discharge the silt and impurities settled in the rotating drum 7, the screw 16 is rotated to move the baffle 15 downward, causing the baffle 15 to disengage from the opening below the discharge port 5, allowing the silt and impurities to be discharged through the discharge port 5.

[0030] When the device is in use, during the operation of the slurry circulation and environmental protection treatment system for pipe jacking construction, the slurry to be treated enters the rotating drum 7 inside the outer cylinder 2 through the slurry feed pipe 4. The motor 603 drives the bevel gear 604, which in turn drives the annular block 601 to rotate, thereby causing the rotating bar 602 to rotate. The rotating bar 602 drives the second annular guard frame 610 to rotate below the annular frame 607 through the first spiral cleaning frame 605 and the connecting block 609. The rotating second annular guard frame 610 drives the first annular guard frame 608 to rotate through the meshing of the first spiral bevel gear 612 and the second spiral bevel gear 611. This causes the rotating drum 7 installed above the first annular guard frame 608 to rotate at high speed. Under the action of centrifugal force, the slurry particles in the slurry gather towards the inner wall of the rotating drum 7, while water enters the gap between the rotating drum 7 and the outer cylinder 2 through the filter holes of the rotating drum 7. Because the centrifugal force causes the slurry to circulate tightly against the inner wall of the rotating drum 7, it is difficult for it to settle naturally. At this time, the cleaning component 6 comes into play. Motor 603 drives bevel gear 604, which in turn rotates annular block 601, causing rotating bar 602 to rotate. The first spiral cleaning frame 605 and the second spiral cleaning frame 606 then clean the inner walls of outer cylinder 2 and rotating cylinder 7 respectively, scraping off the attached mud and sand. Annular frame 607, first spiral bevel gear 612, and second spiral bevel gear 611 form a transmission structure, ensuring stable rotation of rotating cylinder 7 during the cleaning process. The cleaned mud and sand, along with unfiltered slurry, gradually settle inside rotating cylinder 7. Rotating screw 16 moves baffle 15 downward, opening discharge port 5, allowing the settled mud and sand impurities to be discharged. The separated water flows into sedimentation tank 3 via conveying pipe 10. Water pump 8 then re-transports the pre-sedimented slurry from sedimentation tank 3 through water pipe 9 to mud and sand feed pipe 4 for recycling. Mud and sand pump 11 then transports the sedimented mud and sand at the bottom of sedimentation tank 3 back to mud and sand feed pipe 4 through first conveying pipe 12 and second conveying pipe 13, achieving the recovery and utilization of useful components in the slurry.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model.

[0032] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style 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. A kind of pipe jacking construction slurry recycling environmental protection processing system, including placement platform (1), it is characterized by: Above the placement platform (1), an outer cylinder (2) and a sedimentation tank (3) are fixedly installed side by side. A mud and sand feed pipe (4) is provided above the top opening of the outer cylinder (2). The bottom of the outer cylinder (2) extends to the bottom of the placement platform (1) and a discharge port (5) is provided. Inside the outer cylinder (2), a rotating cylinder (7) with multiple filter holes is provided. A cleaning component (6) is provided between the rotating cylinder (7) and the outer cylinder (2). The cleaning component (6) includes an annular block (601) that rotates and fits on the inner wall of the top opening of the outer cylinder (2). A rotating bar (602) located inside the outer cylinder (2) is installed on the periphery of the annular block (601). A first spiral cleaning frame (605) that fits with the inner wall of the outer cylinder (2) is installed at the bottom of the rotating bar (602). A second spiral cleaning frame (606) that fits with the inner wall of the rotating cylinder (7) is installed at the bottom of the rotating bar (602).

2. The environment-friendly treatment system for pipe jacking construction mud circulation according to claim 1, characterized in that: A motor (603) is fixedly installed on the top of the outer cylinder (2). The output shaft of the motor (603) and the periphery of the annular block (601) are both equipped with bevel gears (604), and the two bevel gears (604) mesh with each other.

3. The environmentally-friendly treatment system for pipe jacking construction slurry circulation according to claim 2, characterized in that: The bottom wall of the outer cylinder (2) is fixedly installed with an annular frame (607). The inner wall of the annular frame (607) is fixedly installed on the outer wall of the discharge port (5) located at the inner wall end of the outer cylinder (2). The outer diameter of the discharge port at the bottom of the rotating cylinder (7) is smaller than the inner diameter of the discharge port (5).

4. The environmentally-friendly treatment system for pipe jacking construction slurry circulation according to claim 3, characterized in that: The bottom of the rotating drum (7) is fixedly installed with a first annular guard frame (608), which is rotatably fitted above the annular frame (607). The bottom of the first spiral cleaning frame (605) is equipped with a connecting block (609), and a second annular guard frame (610) is rotatably fitted below the annular frame (607) on one side of the connecting block (609).

5. The environmentally friendly treatment system for pipe jacking construction mud circulation according to claim 4, characterized in that: The annular frame (607) is rotatably fitted with a plurality of first spiral bevel gears (612). The lower side of the first annular guard frame (608) and the upper side of the second annular guard frame (610) are both equipped with second spiral bevel gears (611). The first spiral bevel gears (612) are located between the upper and lower second spiral bevel gears (611) and mesh with them.

6. The environment-friendly treatment system for pipe jacking construction mud circulation according to claim 1, characterized in that: A water pump (8) is fixedly installed above the sedimentation tank (3). The inlet pipe of the water pump (8) extends into the interior of the sedimentation tank (3). The outlet pipe of the water pump (8) is equipped with a water delivery pipe (9) connected to it. The water delivery pipe (9) is installed on the mud and sand feed pipe (4) and connected to it.

7. The environmentally friendly treatment system for pipe jacking construction mud circulation according to claim 6, characterized in that: A conveying pipe (10) is installed between the bottom of the outer cylinder (2) and the sedimentation tank (3). A mud pump (11) is fixedly installed above the placement platform (1). The inlet of the mud pump (11) is equipped with a first conveying pipe (12) that is connected to the bottom of the sedimentation tank (3). The outlet of the mud pump (11) is equipped with a second conveying pipe (13) that is connected to the inlet of the mud feed pipe (4).

8. The environmentally friendly treatment system for pipe jacking construction mud circulation according to claim 7, characterized in that: The inner wall of the discharge port (5) is slidably fitted with a baffle (15), and the bottom of the placement platform (1) is equipped with a fixing frame (14). The middle part of the fixing frame (14) is threaded with a screw (16) that rotates with the bottom of the baffle (15). By rotating the screw (16), the baffle (15) is moved downward, so that the baffle (15) is disengaged from the opening below the discharge port (5), and the sediment and impurities in the rotating drum (7) can be discharged.

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