Slurry shield device

Abstract

The utility model discloses a slurry shield device, which belongs to the technical field of tunnel construction and comprises a containing box, a slurry cabin, a first conveying pipeline, a processing mechanism, a second conveying pipeline and a cutter head. The containing box is provided with a feeding opening communicating with the inner space, and the feeding opening is used for feeding muddy water materials into the containing box. The slurry cabin is used for accommodating initial slurry; the first conveying pipeline is used for conveying initial slurry in the slurry cabin to the accommodating box; the processing mechanism is used for processing the muddy water material entering the charging hole and the initial slurry in the accommodating box into standard slurry; the second conveying pipeline is used for conveying the standard slurry in the accommodating box to the slurry cabin; the cutterhead is arranged in the muddy water cabin and used for laying the standard slurry in the muddy water cabin to a tunnel face to form a mud film.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, and in particular to a slurry shield tunneling device. Background Technology

[0002] In the field of tunnel engineering construction, slurry shield tunneling machines have become key equipment for projects such as urban rail transit and cross-river tunnels due to their ability to balance ground pressure through slurry and adapt to water-rich and complex strata.

[0003] In scenarios such as hatch opening operations, mud replacement, and emergency construction, when the tunnel boring machine needs to open the manhole for maintenance due to cutter wear or equipment failure, the mud in the mud chamber needs to be replaced to stabilize the working face.

[0004] Traditional processes involve mixing high-performance mud in ground-based mud pits and transporting it to the working face via long-distance pipelines. This process not only consumes a large amount of bentonite and other materials and replaces the old mud in the ground-based pits and along the pipelines, resulting in high material costs per operation, but also makes mud replacement time-consuming due to long-distance transportation and makes it difficult to quickly form an effective mud film, posing a safety hazard of collapse caused by ground pressure imbalance. Utility Model Content

[0005] The purpose of this utility model is to provide a slurry shield tunneling device to solve the technical problems of high cost, low replacement efficiency and poor mud film quality in the prior art, which involves mixing new slurry in a mud pit on the ground and then using mud circulation to replace the mud at the tunnel face.

[0006] Based on the above concept, the technical solution adopted by this utility model is as follows:

[0007] This utility model provides a slurry shield tunneling device, comprising:

[0008] A container has a feeding port that communicates with the internal space, the feeding port being used to add mud and water materials into the container;

[0009] Slurry tank, used to hold the initial slurry;

[0010] The first conveying pipeline connects the container and the mud-water tank, and is used to convey the initial slurry in the mud-water tank to the container;

[0011] The processing mechanism is used to process the mud and water material entering the feeding port and the initial slurry in the container into a standard slurry;

[0012] The second conveying pipeline connects the container and the mud-water tank, and is used to convey the standard slurry in the container to the mud-water tank;

[0013] The cutter head, located in the mud and water chamber, is used to spread the standard slurry in the mud and water chamber onto the working face to form a mud film.

[0014] Preferably, the container further includes a return port, and a feeding circuit is formed between the return port and the feeding port. The processing mechanism includes a shear pump, which is disposed in the feeding circuit. The shear pump can draw the initial slurry in the container into the feeding circuit and mix and dissolve the initial slurry and the mud-water material to form the standard slurry.

[0015] Preferably, the slurry shield tunneling device further includes an external water mechanism, which is connected to the containment tank and is used to inject water into the containment tank.

[0016] Preferably, the second delivery pipeline is equipped with a mud pump, which is used to deliver the standard slurry in the containment tank to the mud-water chamber.

[0017] Preferably, the second delivery pipeline is equipped with a check valve.

[0018] Preferably, one side of the container is connected to the feeding port, and the other side opposite the feeding port is connected to the second conveying pipe. From the feeding port to the second conveying pipe, the bottom of the container extends slopingly from top to bottom.

[0019] Preferably, the container has an operating opening, and the operating opening is equipped with an openable and closable operating door.

[0020] Preferably, the upper side of the container is provided with a sampling port that communicates with the internal space, and the sampling port is equipped with a first sealing cover that can be opened and closed.

[0021] Preferably, the lower side of the container is provided with an exhaust port that connects to the internal space, and the exhaust port is equipped with a second sealing cover that can be opened and closed.

[0022] Preferably, the container is equipped with a ladder.

[0023] The beneficial effects of this utility model are:

[0024] The slurry shield tunneling device proposed in this utility model firstly transports the initial slurry in the slurry chamber to the receiving tank through the first conveying pipe until the initial slurry in the receiving tank reaches the preset liquid level; then, slurry material is added to the receiving tank through the feeding port, and the slurry material and the initial slurry are processed by the processing mechanism to form a standard slurry; then, the standard slurry in the receiving tank is sent to the slurry chamber through the second conveying pipe until the standard slurry in the slurry chamber reaches the target liquid level; finally, the drive cutterhead spreads the standard slurry in the slurry chamber onto the tunnel face to form a mud film.

[0025] This slurry shield tunneling device uses a first delivery pipe to introduce the existing initial slurry in the slurry chamber into a receiving tank as the base slurry. Only a suitable amount of slurry material needs to be added through the feeding port, and after thorough mixing by the processing mechanism, a standard slurry meeting performance indicators can be formed. This design avoids the resource waste caused by discarding existing slurry in traditional processes. The short-distance pipe connection between the receiving tank and the slurry chamber significantly shortens the slurry transmission path. Combined with the efficient mixing action of the processing mechanism, it achieves rapid preparation and delivery of the standard slurry. The entire replacement process is completed in a closed loop inside the shield equipment, eliminating the time loss caused by long-distance pipeline transportation and shortening the chamber opening preparation cycle. The second delivery pipe directionally delivers the standard slurry to the slurry chamber. Combined with the rotational motion of the cutterhead, the standard slurry evenly penetrates into the pores of the soil layer at the tunnel face, forming a dense and stable mud film. This effectively improves the support strength of the tunnel face and ensures the safety of personnel entering the chamber for operations. In summary, this slurry shield tunneling device achieves the integration of functions such as slurry extraction, processing, and laying within a limited space through the coordinated cooperation of its various components. This avoids the waste of resources caused by long-distance pipeline replacement and eliminates the problem of slurry performance degradation between the ground and the tunnel in traditional processes. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the slurry shield tunneling device provided in this embodiment of the utility model;

[0027] Figure 2 This is a top view of the accommodating box provided in this embodiment of the utility model;

[0028] Figure 3 This is a first sectional view of the accommodating box provided in this embodiment of the utility model;

[0029] Figure 4 This is a second sectional view of the accommodating box provided in this embodiment of the utility model;

[0030] Figure 5 This is a third sectional view of the accommodating box provided in this embodiment of the utility model.

[0031] In the picture:

[0032] 100. Working face;

[0033] 1. Container; 11. Feeding port; 12. Return port; 13. Operation port; 14. Sampling port; 15. Drain port; 16. Ladder; 2. Mud and water tank; 3. First conveying pipeline; 4. Processing mechanism; 41. Feeding circuit; 42. Shear pump; 5. Second conveying pipeline; 51. Mud pump; 52. Check valve; 6. Cutter head; 7. External water mechanism. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0037] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0038] See Figures 1 to 5 The slurry shield tunneling device provided in this embodiment includes a container 1, a slurry chamber 2, a first conveying pipe 3, a processing mechanism 4, a second conveying pipe 5, and a cutterhead 6. The container 1 has a feeding port 11 that connects to its internal space, used to feed slurry material into the container 1. The slurry chamber 2 is used to hold the initial slurry. The first conveying pipe 3 connects the container 1 and the slurry chamber 2, used to transport the initial slurry in the slurry chamber 2 to the container 1. The processing mechanism 4 is used to process the slurry material entering the feeding port 11 and the initial slurry in the container 1 to form a standard slurry. The second conveying pipe 5 connects the container 1 and the slurry chamber 2, used to transport the standard slurry in the container 1 to the slurry chamber 2. The cutterhead 6 is disposed in the slurry chamber 2, used to spread the standard slurry in the slurry chamber 2 onto the tunnel face 100 to form a mud film.

[0039] The slurry shield tunneling device proposed in this utility model firstly transports the initial slurry in the slurry chamber 2 to the containment tank 1 through the first conveying pipe 3 until the initial slurry in the containment tank 1 reaches the preset liquid level; then, slurry material is added to the containment tank 1 through the feeding port 11, and the slurry material and the initial slurry are processed into a standard slurry through the processing mechanism 4; then, the standard slurry in the containment tank 1 is sent to the slurry chamber 2 through the second conveying pipe 5 until the standard slurry in the slurry chamber 2 reaches the target liquid level; finally, the cutterhead 6 is driven to spread the standard slurry in the slurry chamber 2 onto the tunnel face 100 to form a mud film.

[0040] The slurry shield tunneling device uses a first conveying pipe 3 to introduce the existing initial slurry in the slurry chamber 2 into the receiving tank 1 as the base slurry. Only an appropriate amount of slurry material needs to be added through the feeding port 11, and after thorough mixing by the processing mechanism 4, a standard slurry meeting performance indicators can be formed. This design avoids the resource waste caused by discarding existing slurry in traditional processes. The short-distance pipe connection between the receiving tank 1 and the slurry chamber 2 significantly shortens the slurry transmission path. Combined with the efficient mixing action of the processing mechanism 4, the standard slurry can be prepared and transported rapidly. The entire replacement process is completed in a closed loop inside the shield equipment, eliminating the time loss caused by long-distance pipeline transportation and shortening the chamber opening preparation cycle. The second conveying pipe 5 directionally transports the standard slurry to the slurry chamber 2. Combined with the rotational motion of the cutterhead 6, the standard slurry is evenly penetrated into the pores of the soil layer 100 at the tunnel face, thereby forming a dense and stable mud film, effectively improving the support strength of the tunnel face 100 and ensuring the safety of personnel entering the chamber for operations. In summary, this slurry shield tunneling device achieves the integration of functions such as slurry extraction, processing, and laying within a limited space through the coordinated cooperation of its various components. This avoids the waste of resources caused by long-distance pipeline replacement and eliminates the problem of slurry performance degradation between the ground and the tunnel in traditional processes.

[0041] The specific structure of this slurry shield tunneling device will be described below.

[0042] The container 1 is used to hold materials such as mud and water materials and labeling slurry. The container 1 has a feeding port 11 that connects to the internal space, and the feeding port 11 is used to put mud and water materials into the container 1.

[0043] Optionally, the diameter of the feeding port 11 gradually decreases from top to bottom and extends in a funnel shape, so that when mud and water materials are added into the container 1, the mud and water materials can slide into the container 1 more smoothly, effectively avoiding the spillage and accumulation of mud and water materials at the edge of the feeding port 11 during the feeding process, improving the efficiency and accuracy of feeding, and reducing the material waste that may be caused by spillage.

[0044] Furthermore, the container 1 also includes a return port 12, forming a feeding circuit 41 between the return port 12 and the feeding port 11. The processing mechanism 4 includes a shear pump 42, which is located in the feeding circuit 41. The shear pump 42 can draw the initial slurry in the container 1 into the feeding circuit 41 and mix and dissolve the initial slurry with the mud-water material to form a standard slurry. In use, the initial slurry in the mud-water tank 2 is first transported to the container 1 through the first conveying pipe 3. Then, the mud-water material is added from the feeding port 11. At the same time, the shear pump 42 is started, drawing the existing initial slurry in the container 1 into the feeding circuit 41. In the circuit, the initial slurry and the mud-water material are fully mixed and dissolved under the action of the shear pump 42, ultimately forming a standard slurry.

[0045] The closed-loop flow path formed by the feeding circuit 41 allows the initial slurry and mud-water materials to pass through the action zone of the shear pump 42 multiple times, enhancing the mixing intensity and shortening the dissolution time. This dynamic circulation mode can prevent the feeding port 11 from being blocked, maintain the unobstructed flow of the feeding circuit 41, and adapt to the vibration conditions of the tunnel boring machine.

[0046] Optionally, the first conveying pipe 3 is located between the upper side of the container 1 and the upper side of the mud-water tank 2. When the first conveying pipe 3 is connected, the initial slurry in the mud-water tank 2 is conveyed to the container 1 through the first conveying pipe 3 under the action of the liquid level difference, serving as the base slurry for standard slurry mixing. This method of conveying the initial slurry based on the liquid level difference does not require additional complex power equipment; it can convey the initial slurry solely by the natural liquid level difference, simplifying the device structure and reducing equipment costs and energy consumption. Furthermore, conveying using the liquid level difference is more stable, reducing disturbance to the initial slurry and preventing changes in slurry composition due to excessive disturbance.

[0047] The first conveying pipeline 3 is equipped with a control valve to control whether the first conveying pipeline 3 is connected or closed.

[0048] Furthermore, the slurry shield tunneling device also includes an external water mechanism 7, which is connected to the containment tank 1 and used to inject water into the containment tank 1. When the processing mechanism 4 mixes the initial slurry and slurry materials, if the viscosity of the slurry is too high or the fluidity is insufficient, an appropriate amount of clean water can be injected through the external water mechanism 7 to optimize the slurry performance by adjusting the water content, so that its indicators meet the performance indicators of the standard slurry. After the slurry replacement operation is completed, water can be injected into the empty containment tank 1 through the external water mechanism 7, which, in conjunction with the operation of the processing mechanism 4, realizes the automatic flushing process of the inner wall of the containment tank 1 and the feeding circuit 41.

[0049] Optionally, the external water supply mechanism 7 includes a water storage tank, a water supply pipeline, a water pump, and a flow regulating valve. The water storage tank is placed near the container 1 to store water. One end of the water supply pipeline is connected to the bottom of the water storage tank, and the other end is connected to the inlet of the container 1. The water supply pipeline is made of pressure-resistant and corrosion-resistant materials to ensure a safe and stable water supply process. The water pump, installed on the water supply pipeline, is a centrifugal pump. Its impeller rotates at high speed via a motor, creating a vacuum at the inlet, thereby drawing water from the water storage tank and pressurizing it into the container 1. The flow regulating valve is located on the water supply pipeline between the water pump and the container 1. By adjusting the valve opening, the flow rate of water entering the container 1 can be precisely controlled.

[0050] In other embodiments, the external water mechanism 7 can also be implemented using a plunger pump, a nozzle, or other similar mechanism. The implementation form is not limited here, as long as the above-mentioned effects can be achieved.

[0051] Preferably, the upper side of the container 1 has a sampling port 14 that connects to the internal space, and the sampling port 14 is equipped with a first sealing cover that can be opened and closed. During the preparation of the standard slurry, when it is necessary to sample and test the slurry in the container 1, the operator first opens the first sealing cover and uses a professional sampling tool to reach into the container 1 through the sampling port 14 to obtain a slurry sample. After sampling, the first sealing cover is closed, restoring the container 1 to its closed state. The operator can test the viscosity, specific gravity, and other indicators of the obtained slurry sample, and adjust the amount of mud-water material added or the processing technology in a timely manner based on the test results to ensure that the final standard slurry meets the construction requirements, thereby ensuring the formation of a high-quality mud film at the tunnel face 100 and improving the quality and safety of the slurry shield tunneling operation. At the same time, the openable and closable first sealing cover keeps the container 1 closed when not sampling, preventing foreign matter from entering and affecting the slurry quality, and also avoiding slurry leakage that could cause environmental pollution or waste.

[0052] After the slurry shield tunneling device mixes and processes the slurry material and initial slurry to form a standard slurry through components such as the feeding circuit 41, shear pump 42 and external water mechanism 7, the standard slurry in the container 1 needs to be transported to the slurry chamber 2 through the second conveying pipeline 5.

[0053] Specifically, the second delivery pipeline 5 is equipped with a mud pump 51, which is used to transport the standard slurry in the container 1 to the mud-water tank 2. When it is necessary to transport the prepared standard slurry in the container 1 to the mud-water tank 2, the mud pump 51 on the second delivery pipeline 5 is started. The mud pump 51 starts working, first using suction to draw the standard slurry in the container 1 into the pump chamber, and then using the thrust generated by the rotation of the impeller or the movement of the piston, the standard slurry is continuously flowed along the second delivery pipeline 5 under pressure to the mud-water tank 2 until the standard slurry in the mud-water tank 2 reaches the target level. The mud pump 51 enhances the delivery efficiency and controllability of the standard slurry, and can precisely adjust the delivery speed and flow rate according to construction needs, quickly and stably delivering the standard slurry to the mud-water tank 2, meeting the requirements for timely supply of standard slurry in different construction scenarios.

[0054] In other embodiments, the second conveying pipe 5 can also convey the standard slurry in the container 1 through a compressed air conveyor, a screw conveyor, etc., which is not limited here.

[0055] Preferably, the second conveying pipeline 5 is equipped with a one-way valve 52. When the mud pump 51 conveys standard slurry to the mud-water tank 2 through the second conveying pipeline 5, the one-way valve 52 automatically opens under the positive pressure of the standard slurry, allowing the standard slurry to flow smoothly into the mud-water tank 2; when the mud pump 51 stops working or the pressure inside the mud-water tank 2 is higher than the conveying pressure, the one-way valve 52 immediately closes under the reverse pressure. The mechanical locking characteristic of the one-way valve 52 effectively prevents the slurry in the mud-water tank 2 from flowing back into the second conveying pipeline 5, avoiding the pipe emptying phenomenon caused by slurry backflow, ensuring the continuity of subsequent conveying operations, and at the same time preventing impurities in the mud-water tank 2 from flowing back and contaminating the standard slurry, ensuring the stability of slurry performance.

[0056] Furthermore, the lower side of the container 1 is provided with an exhaust port 15 connecting to the internal space, and the exhaust port 15 is equipped with a second, closable sealing cover. After the opening operation is completed, if there is any residual slurry in the container 1, the operator manually opens the second sealing cover, and under the action of gravity, the excess slurry in the container 1 flows out along the exhaust port 15. After the slurry has been discharged, the second sealing cover is closed to prevent external debris from entering the container 1. By timely discharging the residual slurry, the sedimentation and solidification of the mud in the container 1 is avoided, which not only keeps the inside of the container 1 clean but also prevents the solidification of the mud from affecting the processing and transportation functions of the container 1 for slurry in subsequent operations.

[0057] Preferably, one side of the container 1 is connected to the feed port 11, and the other side, directly opposite the feed port 11, is connected to the second conveying pipe 5. From the feed port 11 to the second conveying pipe 5, the bottom of the container 1 extends slopingly downwards. The sloping bottom facilitates the flow of the standard slurry along the sloping bottom of the container 1 towards the second conveying pipe 5 under gravity, reducing the residue of the standard slurry in the container 1 and ensuring that the standard slurry can be fully and smoothly conveyed to the mud-water tank 2, avoiding waste. At the same time, it avoids the dead corners of material accumulation commonly found at the bottom of horizontal tanks, ensuring the thorough emptying of the slurry in the container 1 and preventing residues from solidifying and caking.

[0058] In addition, the container 1 has an operating port 13, which is equipped with an openable and closable operating door. When maintenance, repair, or cleaning of the contents of the container 1 is required, the operator opens the operating door and enters the container 1 through the operating port 13 to carry out the relevant work. After the operation is completed, the operating door is closed, restoring the container 1 to its closed state.

[0059] Preferably, the container 1 is equipped with a ladder 16 to facilitate operation by the operator on the container 1.

[0060] After the standard slurry is transported to the mud and water chamber 2 by the second conveying pipe 5, the standard slurry in the mud and water chamber 2 is spread to the working face 100 through the cutter head 6 located in the mud and water chamber 2 to form a mud film.

[0061] The following describes how to use this slurry shield tunneling device.

[0062] When using the slurry shield tunneling device, firstly, confirm that all connection points between the upper side of the first conveying pipe 3 and the upper side of the slurry chamber 2 are well sealed, with no risk of leakage, and that the control valve of the first conveying pipe 3 is in an openable state.

[0063] Then, the control valve connecting the first delivery pipeline 3 is opened to connect the first delivery pipeline 3. Since the initial slurry level in the mud-water tank 2 is higher than the level in the container tank 1, the initial slurry begins to flow from the mud-water tank 2 to the container tank 1 under the pressure generated by the level difference.

[0064] During the transportation process, the liquid level changes of the initial slurry in the container 1 are monitored in real time by equipment such as liquid level monitoring devices.

[0065] When the liquid level monitoring device reports that the initial slurry in the container 1 has reached the preset liquid level, the control valve of the first conveying pipeline 3 is closed to stop the conveying of the initial slurry.

[0066] Afterwards, prepare an appropriate amount of mud and water materials and move them to the vicinity of the feeding port 11 of the container 1.

[0067] Open the feeding port 11. Since the feeding port 11 is funnel-shaped, slowly pour the mud and water material into the feeding port 11 so that it can smoothly slide into the container 1.

[0068] Start the shear pump 42 in the processing mechanism 4. The shear pump 42 starts working and sucks the initial slurry already in the container 1 into the feeding circuit 41 formed by the return port 12 and the feeding port 11.

[0069] In the feeding circuit 41, the initial slurry and the newly added mud-water material are thoroughly mixed under the action of the shear pump 42. The shear pump 42, through its high-speed rotating components, stirs and shears the slurry and material, promoting their mutual fusion and dissolution.

[0070] Simultaneously, the valve on the water supply pipeline connecting the water storage tank and the container tank 1 in the external water mechanism 7 is opened, and the water pump is started. The water pump draws water from the storage tank and pumps it into the container tank 1. By adjusting the opening of the flow regulating valve, the water flow rate entering the container tank 1 is precisely controlled, thereby adjusting the water content of the slurry and optimizing its performance.

[0071] Next, the operator opens the first sealing cap and uses a professional sampling tool to reach into the container 1 through sampling port 14 to obtain a slurry sample. After sampling, the first sealing cap is closed, restoring the container 1 to a closed state. The obtained slurry sample is then tested for indicators such as viscosity and specific gravity. If the test results show that the slurry indicators meet the requirements, the shearing and mixing operation is stopped. At this point, the slurry formed in the container 1 is the standard slurry and can be used for subsequent work. If the test results show that the slurry indicators do not meet the requirements, the above operation is repeated to adjust the slurry indicators until the requirements are met.

[0072] After the standard slurry is prepared, the mud pump 51, which is installed on the second delivery pipeline 5, is started. The mud pump 51 starts to work, first using suction to draw the standard slurry in the container 1 into the pump chamber, and then using the thrust generated by the rotation of the impeller or the movement of the piston to make the standard slurry flow continuously along the second delivery pipeline 5 to the mud-water tank 2 under pressure.

[0073] Next, determine whether the standard slurry in the mud-water tank 2 has reached the target level. If it has not reached the target level, repeat steps S1-S3 until the standard slurry in the mud-water tank 2 reaches the target level. Also, check the connection between the cutterhead 6 and the mud-water tank 2 to ensure that the cutterhead 6 is securely installed and all components are ready.

[0074] Next, the drive device of the cutterhead 6 is started, and the cutterhead 6 begins to rotate inside the mud and water chamber 2. As the cutterhead 6 rotates, its surface comes into contact with the standard slurry inside the mud and water chamber 2, evenly spreading and pushing the standard slurry to the working face 100.

[0075] The cutterhead 6 rotates continuously, allowing the standard grout to gradually penetrate into the pores of the soil layer at the face 100. Over time, a dense and stable mud film gradually forms at the face 100. During the operation of the cutterhead 6, the formation of the mud film at the face 100 is continuously observed to ensure that the mud film evenly and completely covers the face 100.

[0076] The above embodiments merely illustrate the basic principles and characteristics of this utility model. This utility model is not limited to the above embodiments. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A slurry shield tunneling device, characterized in that, include: The container (1) has a feeding port (11) that communicates with the internal space, the feeding port (11) being used to feed mud and water material into the container (1); Mud tank (2), used to hold the initial slurry; The first conveying pipe (3) connects the container (1) and the mud and water tank (2) and is used to convey the initial slurry in the mud and water tank (2) to the container (1); The processing mechanism (4) is used to process the mud and water material entering the feeding port (11) and the initial slurry in the container (1) into a standard slurry; The second conveying pipeline (5) connects the container (1) and the mud and water tank (2) and is used to convey the standard slurry in the container (1) to the mud and water tank (2). The cutter head (6) is set in the mud and water chamber (2) and is used to spread the standard slurry in the mud and water chamber (2) to the working face (100) to form a mud film.

2. The slurry shield tunneling device according to claim 1, characterized in that, The container (1) also includes a return port (12), and a feeding circuit (41) is formed between the return port (12) and the feeding port (11). The processing mechanism (4) includes a shear pump (42), which is located in the feeding circuit (41). The shear pump (42) can draw the initial slurry in the container (1) into the feeding circuit (41) and mix and dissolve the initial slurry and the mud-water material to form the standard slurry.

3. The slurry shield tunneling device according to claim 1, characterized in that, The slurry shield tunneling device also includes an external water mechanism (7), which is connected to the container (1) and is used to inject water into the container (1).

4. The slurry shield tunneling device according to claim 1, characterized in that, The second conveying pipeline (5) is equipped with a mud pump (51) for conveying the standard slurry in the container (1) to the mud-water tank (2).

5. The slurry shield tunneling device according to claim 1, characterized in that, The second delivery pipe (5) is equipped with a check valve (52).

6. The slurry shield tunneling device according to claim 1, characterized in that, One side of the container (1) is connected to the feeding port (11), and the other side opposite the feeding port (11) is connected to the second conveying pipe (5). From the feeding port (11) to the second conveying pipe (5), the bottom of the container (1) extends slopingly from top to bottom.

7. The slurry shield tunneling device according to claim 1, characterized in that, The container (1) has an operating port (13), and the operating port (13) is equipped with an operating door that can be opened and closed.

8. The slurry shield tunneling device according to claim 1, characterized in that, The upper side of the container (1) is provided with a sampling port (14) that communicates with the internal space, and the sampling port (14) is equipped with a first sealing cover that can be opened and closed.

9. The slurry shield tunneling device according to claim 1, characterized in that, The lower side of the container (1) is provided with an exhaust port (15) that connects to the internal space, and the exhaust port (15) is equipped with a second sealing cover that can be opened and closed.

10. The slurry shield tunneling device according to claim 1, characterized in that, The container (1) is equipped with a ladder (16).

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