Slurry storage device and tunnel construction equipment

Abstract

The utility model discloses a mud storage device and tunnel construction equipment, which comprises a storage container used for storing mud, the storage container is a sealed structure, the lower part or the bottom of the storage container is connected with a mud pipeline, the mud pipeline is respectively connected with a mud discharge pipeline and a mud inlet pipeline, the bottom of the storage container is also connected with a transfer pipeline, and the transfer pipeline is connected with the mud discharge pipeline and the mud inlet pipeline. The transfer pipeline is used for being connected with a slurry storage sewage container; the pneumatic control device is connected to the top of the storage container and used for pressurizing the storage container or providing negative pressure for the storage container; and the pipeline control device is used for respectively controlling the on-off of the slurry discharging pipeline, the on-off of the slurry inlet pipeline and the on-off of the transfer pipeline. According to the device, closed-loop control over mud recovery and utilization is achieved, mud recovery, storage transfer and recycling of construction equipment in the pipe replacement process are rapidly and efficiently completed, and the problem of leakage of mud in the current transfer and storage process is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction and drilling engineering, and in particular to a mud collecting device and tunnel construction equipment. Background Art

[0002] During current tunnel and drilling construction, there is a large amount of waste mud, which has become one of the main sources of pollution in the construction environment.

[0003] The existing waste mud treatment can be discharged after mud separation, dehydration, chemical solidification and other treatments, but a large number of mud treatment problems are still not systematically solved, and the large amount of mud discharge and transportation problems during construction are prominent. The discharge of mud consumes a lot of manpower and financial resources, and requires a larger landfill site, which greatly increases the cost of construction companies.

[0004] In the prior art, a geological drilling rig mud recovery and recycling device, such as that disclosed in publication number: CN219220328U, can collect overflow mud, but the mud still needs to be discharged, transported and post-processed. As the construction progresses, the slurry inlet and discharge pipelines need to be extended, mud discharge still exists, and mud collection relies on human intervention, with a low degree of automation and a risk of mud polluting the environment. Utility Model Content

[0005] The utility model provides a mud collecting device and tunnel construction equipment to solve the technical problems in the prior art.

[0006] The technical solution adopted by the utility model is as follows:

[0007] A mud collection device, comprising:

[0008] A storage container for storing mud. The storage container is of a sealed structure. A mud pipeline is connected to the lower part or bottom of the storage container. The mud pipeline is respectively connected to a mud discharge pipeline and a mud inlet pipeline. A transfer pipeline is also connected to the bottom of the storage container. The transfer pipeline is used to be connected to a mud storage sewage container.

[0009] An air control device, connected to the top of the storage container, for pressurizing the storage container or providing negative pressure for the storage container;

[0010] The pipeline control device is used to control the on-off of the slurry discharge pipeline, the on-off of the slurry inlet pipeline and the on-off of the transfer pipeline respectively.

[0011] As a further improvement of the above technical solution, the air control device includes a vacuum pipeline connected to the air source and a vacuum generating unit and an exhaust valve arranged on the vacuum pipeline. The top of the storage container is connected to the vacuum generating unit via a negative pressure pipeline, and the negative pressure pipeline is provided with a one-way valve, a filter and a vacuum valve.

[0012] As a further improvement of the above technical solution, the gas control device also includes a pressurizing pipeline and a pressurizing valve arranged on the pressurizing pipeline, and the two ends of the pressurizing pipeline are respectively connected to the top of the storage container and the vacuum pipeline.

[0013] As a further improvement of the above technical solution, a muffler is provided at the tail end of the vacuum pipeline.

[0014] As a further improvement of the above technical solution, the gas control device also includes a vacuum pressure sensor and / or a vacuum pressure gauge arranged in the storage container.

[0015] As a further improvement of the above technical solution, the pipeline control device includes a first slurry discharge control valve and a second slurry discharge control valve, and the first slurry discharge control valve and the second slurry discharge control valve are respectively arranged on the slurry discharge pipeline on both sides of the connection node between the slurry discharge pipeline and the mud pipeline; the pipeline control device also includes a first slurry inlet control valve and a second slurry inlet control valve, and the first slurry inlet control valve and the second slurry inlet control valve are respectively arranged on the slurry inlet pipeline on both sides of the connection node between the slurry inlet pipeline and the mud pipeline.

[0016] As a further improvement of the above technical solution, the pipeline control device also includes a first liquid level detection unit for detecting a low liquid level of the storage container and a second liquid level detection unit for detecting a high liquid level of the storage container.

[0017] As a further improvement of the above technical solution, the pipeline control device also includes a liquid level tube arranged on one side of the storage container, and the liquid level tube is connected to the first liquid level detection unit and the second liquid level detection unit respectively.

[0018] As a further improvement of the above technical solution, the air control device also includes a compensation pipeline connected to the air source and a vacuum compensation valve arranged on the compensation pipeline, the compensation pipeline having a first output end and a second output end, the first output end is connected to the slurry discharge pipeline and the connection position is located between the first slurry discharge control valve and the second slurry discharge control valve, the second output end is connected to the slurry inlet pipeline and the connection position is located between the first slurry inlet control valve and the second slurry inlet control valve.

[0019] On the other hand, a tunnel construction device is also provided, which is applied with any of the above-mentioned mud collecting devices.

[0020] The utility model has the following beneficial effects: after the device is applied to the construction equipment, when in use, the pipeline control device controls the slurry discharge pipeline and the slurry feed pipeline to be connected; when it is necessary to replace the pipe and release the slurry, the construction equipment is shut down for the pipe replacement operation, the pipeline control device controls the slurry discharge pipeline and the slurry feed pipeline to be closed, and the air control system provides negative pressure for the storage container, so that the mud between the valve positions on the slurry discharge pipeline and the slurry feed pipeline is sucked into the vacuum tank by the negative pressure to realize the recovery and storage of the mud, and at the same time facilitates the pipeline extension and pipe replacement operation; when it is necessary to transfer mud, the pipeline control device controls the transfer pipeline to open, and the slurry discharge pipeline and the slurry feed pipeline are both closed, and the air control device pressurizes the storage container so that the mud in the storage container is transferred to the mud and sewage storage box through the transfer pipeline for secondary utilization. This device realizes closed-loop control of mud recovery and utilization, and quickly and efficiently completes the recovery, storage, transportation and recycling of mud during the pipe replacement process of construction equipment, solving the current leakage problem of mud during transportation and storage. The whole process is pollution-free and zero-emission, and no human operation is required, which greatly saves time and economic costs and greatly improves work efficiency.

[0021] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0023] Figure 1 This is a simplified structural diagram of a preferred embodiment of the utility model:

[0024] 1. Vacuum generating unit 2. One-way valve 3. Filter 4. Pressurizing valve 5. Exhaust valve 6. Muffler 7. First slurry discharge control valve 8. Vacuum compensation valve 9. Second slurry discharge control valve 10. First slurry inlet control valve 11. Mud recovery valve 12. Second slurry inlet control valve 13. Vacuum pressure sensor 14. Vacuum pressure gauge 15. Mud transfer valve 16. First liquid level detection unit 17. Liquid level pipe 18. Third liquid level detection unit 19. Storage container 20. Second liquid level detection unit 21. Vacuum valve 22. Slurry discharge pipeline 23. Slurry inlet pipeline 24. Air source 25. Mud collecting sewage container. DETAILED DESCRIPTION

[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0026] Reference Figure 1 The preferred embodiment of the utility model provides a mud collection device, comprising:

[0027] The storage container 19 is used to store mud. The storage container 19 is a sealed structure. A mud pipeline is connected to the lower part or bottom of the storage container 19. The mud pipeline is connected to the mud discharge pipeline 22 and the mud inlet pipeline 23 respectively. The bottom of the storage container 19 is also connected to a transfer pipeline, which is used to be connected to the mud sewage container 25.

[0028] An air control device, connected to the top of the storage container 19, for pressurizing the storage container 19 or providing negative pressure for the storage container 19;

[0029] The pipeline control device is used to control the on-off of the slurry discharge pipeline 22, the on-off of the slurry inlet pipeline 23 and the on-off of the transfer pipeline respectively.

[0030] Among them, the storage container 19 can be a vacuum tank. According to the actual application scenario of the mud storage device, it can also be a sealed tank installed on a mud transport vehicle, a sealed mud sedimentation box, etc.; the pipeline control device is automatically controlled by an automatic control valve and various sensors. The automatic control valve can also be replaced by a pneumatic control valve, an electric control valve, a hydraulic control valve, a manual valve or a mechanical logic valve. Before starting the device, it should be ensured that the air supply pressure meets the requirements under the construction environment and that the pipelines are connected correctly and that the components work normally; the mud control valve of this embodiment is used in a slurry shield machine as an example;

[0031] It can be understood that, in the use state, the pipeline control device controls the slurry discharge pipeline 22 and the slurry inlet pipeline 23 to be connected; when it is necessary to replace the pipe and release the slurry, the construction equipment is shut down for the pipe replacement operation, and the pipeline control device controls the slurry discharge pipeline 22 and the slurry inlet pipeline 23 to be closed, and the air control system provides negative pressure for the storage container 19, so that the mud between the valve positions on the slurry discharge pipeline 22 and the slurry inlet pipeline 23 is sucked into the vacuum tank by the negative pressure to realize the recovery and storage of the mud, and at the same time facilitates the pipeline extension and pipe replacement operation; when it is necessary to transfer mud, the pipeline control device controls the transfer pipeline to open, and the slurry discharge pipeline 22 and the slurry inlet pipeline 23 are both closed, and the air control device pressurizes the storage container 19 so that the mud in the storage container 19 is transferred to the mud and sewage storage box through the transfer pipeline for secondary utilization. The device realizes closed-loop control of mud recovery and utilization, and quickly and efficiently completes the recovery, storage, transportation and recycling of mud during the pipe replacement process of construction equipment, solves the current leakage problem of mud during transportation and storage, and avoids the environmental pollution problem caused by mud splashing or overflow in the traditional pipe replacement process. The entire mud collection process is pollution-free, zero-emission, and does not require human operation, which greatly saves time and economic costs and greatly improves work efficiency.

[0032] In this embodiment, the gas control device includes a vacuum pipeline connected to the gas source 24, and a vacuum generating unit 1 and an exhaust valve 5 arranged on the vacuum pipeline. The vacuum generating unit 1 can be a vacuum device, a vacuum pump, and the top of the storage container 19 is connected to the vacuum generating unit 1 through a negative pressure pipeline. The negative pressure pipeline is provided with a one-way valve 2, a filter 3 and a vacuum valve 21. When recovering mud, the vacuum valve 21 is opened to connect the vacuum generating unit 1 and the storage container 19, and the exhaust valve 5 is opened to open the vacuum generator vacuum channel, so that the storage container 19 can be vacuumed. The filter 3 can prevent mud from entering the vacuum generating unit 1 to avoid damage;

[0033] Among them, the air control device also includes a vacuum pressure sensor 13 and / or a vacuum pressure gauge 14 arranged on the storage container 19. The vacuum pressure sensor 13 is used to judge whether the vacuum pumping work is completed, and the vacuum pressure gauge 14 can also be used to assist in judging whether the vacuum pumping is completed; in addition, a mud recovery valve 11 is provided on the mud pipeline, which is in an open state during construction operations. When pipe replacement and mud recovery operations are performed, the slurry discharge pipeline 22, the slurry inlet pipeline 23 and the mud recovery valve 11 are all closed. After the vacuum pumping starts, when the pressure of the vacuum pressure sensor 13 reaches the set value, the mud recovery valve 11 opens, so that the passage from the mud in the slurry inlet and outlet pipelines to the vacuum tank is unobstructed, thereby realizing automatic recovery and storage control.

[0034] In this embodiment, the air control device also includes a pressurizing pipeline and a pressurizing valve 4 arranged on the pressurizing pipeline. The two ends of the pressurizing pipeline are respectively connected to the top of the storage container 19 and the vacuum pipeline. That is, when mud is transferred, the pressurizing valve 4 and the mud transfer valve 15 are opened, and the vacuum generating unit 1 pressurizes the storage container 19 through the vacuum pipeline and the pressurizing pipeline, and the mud in the vacuum container is transported to the mud sewage container 25 to achieve secondary utilization.

[0035] In this embodiment, a muffler 6 is provided at the tail end of the vacuum pipeline to reduce the noise in the construction environment.

[0036] In this embodiment, the pipeline control device includes a first slurry discharge control valve 7 and a second slurry discharge control valve 9, which are respectively arranged on the slurry discharge pipeline 22 on both sides of the connection node between the slurry discharge pipeline 22 and the mud pipeline; the pipeline control device also includes a first slurry inlet control valve 10 and a second slurry inlet control valve 12, which are respectively arranged on the slurry inlet pipeline 23 on both sides of the connection node between the slurry inlet pipeline 23 and the mud pipeline. When the pipe is replaced, the first slurry discharge control valve 7 and the second slurry discharge control valve 9 are closed, and the air control device can vacuum the storage container 19 to provide negative pressure to recover the mud between the first slurry discharge control valve 7 and the second slurry discharge control valve 9, so as to perform the pipe replacement operation, and the mud recovery of the slurry inlet pipeline 23 is the same:

[0037] Furthermore, the pipeline control device further includes a first liquid level detection unit 16 for detecting a low liquid level of the storage container 19 and a second liquid level detection unit 20 for detecting a high liquid level of the storage container 19, wherein:

[0038] Specifically, when the liquid level is lower than the low liquid level, the first liquid level detection unit 16 has no detection result and there is no need to transfer mud. When the liquid level is between the low liquid level and the high liquid level, the mud transfer valve 15 and the pressure boosting valve 4 can be opened to transfer mud. When the liquid level is higher than the high liquid level and is detected by the second liquid level detection unit 20, the action of each valve is automatically controlled to transfer mud, thereby realizing automatic control of transfer and reducing manual operation.

[0039] In some embodiments, a third liquid level detection unit 18 may be provided at a middle liquid level for easier control. Each liquid level detection unit is a liquid level sensor:

[0040] In this embodiment, the pipeline control device also includes a liquid level tube 17 arranged on one side of the storage container 19. The liquid level tube 17 is respectively connected to the first liquid level detection unit 16 and the second liquid level detection unit 20. The liquid level tube 17 is made of transparent material, and the liquid level of the liquid level tube 17 can be observed to determine the mud level height in the storage container 19.

[0041] In this embodiment, the air control device also includes a compensation pipeline connected to the air source 24 and a vacuum compensation valve 8 arranged in the compensation pipeline. The compensation pipeline has a first output end and a second output end. The first output end is connected to the slurry discharge pipeline 22 and the connection position is located between the first slurry discharge control valve 7 and the second slurry discharge control valve 9. The second output end is connected to the slurry inlet pipeline 23 and the connection position is located between the first slurry inlet control valve 10 and the second slurry inlet control valve 12. By setting the compensation pipeline and the vacuum compensation valve 8, compressed air is provided to the slurry discharge pipeline 22 and the slurry inlet pipeline 23 during the recovery operation to balance the negative pressure of the slurry discharge pipeline 22 and the slurry inlet pipeline 23 caused by vacuum extraction.

[0042] By using automatic control valves in conjunction with liquid level detection units and pressure sensors, fully automatic mud storage and recycling are accurately achieved, avoiding the problems of low efficiency and low degree of automation in traditional manual slurrying, greatly reducing the workload of personnel and greatly improving work efficiency.

[0043] On the other hand, this embodiment also provides a tunnel construction system, which is equipped with the above-mentioned mud collection device. It should be understood that this mud collection device is not only suitable for the construction process of slurry shield method, but can also be used for mud collection of equipment such as horizontal drilling rigs or vertical drilling rigs.

[0044] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A mud collection device, characterized in that: include: A storage container (19) is used to store mud. The storage container (19) is of a sealed structure. A mud pipeline is connected to the lower part or bottom of the storage container (19). The mud pipeline is respectively connected to a mud discharge pipeline (22) and a mud inlet pipeline (23). The bottom of the storage container (19) is also connected to a transfer pipeline. The transfer pipeline is used to be connected to a mud sewage container (25). An air control device, connected to the top of the storage container (19), used to pressurize the storage container (19) or provide negative pressure for the storage container (19); The pipeline control device is used to respectively control the on-off of the slurry discharge pipeline (22), the on-off of the slurry inlet pipeline (23), and the on-off of the transfer pipeline.

2. The mud collection device according to claim 1, characterized in that: The gas control device comprises a vacuum pipeline connected to an air source (24), and a vacuum generating unit (1) and an exhaust valve (5) arranged on the vacuum pipeline. The top of the storage container (19) is connected to the vacuum generating unit (1) via a negative pressure pipeline. The negative pressure pipeline is provided with a one-way valve (2), a filter (3) and a vacuum valve (21).

3. The mud collection device according to claim 2, characterized in that: The gas control device further comprises a pressurizing pipeline and a pressurizing valve (4) arranged on the pressurizing pipeline, and the two ends of the pressurizing pipeline are respectively connected to the top of the storage container (19) and the vacuum pipeline.

4. The mud collection device according to claim 2, characterized in that: A muffler (6) is provided at the tail end of the vacuum pipeline.

5. The mud collection device according to claim 2, characterized in that: The gas control device further comprises a vacuum pressure sensor (13) and / or a vacuum pressure gauge (14) arranged on the storage container (19).

6. The mud collection device according to any one of claims 1 to 5, characterized in that: The pipeline control device comprises a first slurry discharge control valve (7) and a second slurry discharge control valve (9), and the first slurry discharge control valve (7) and the second slurry discharge control valve (9) are respectively arranged on the slurry discharge pipeline (22) at two sides of a connection node between the slurry discharge pipeline (22) and the mud pipeline; the pipeline control device also comprises a first slurry inlet control valve (10) and a second slurry inlet control valve (12), and the first slurry inlet control valve (10) and the second slurry inlet control valve (12) are respectively arranged on the slurry inlet pipeline (23) at two sides of a connection node between the slurry inlet pipeline (23) and the mud pipeline.

7. The mud collection device according to claim 6, characterized in that: The pipeline control device further comprises a first liquid level detection unit (16) for detecting a low liquid level of the storage container (19) and a second liquid level detection unit (20) for detecting a high liquid level of the storage container (19).

8. The mud collection device according to claim 7, characterized in that: The pipeline control device further comprises a liquid level pipe (17) arranged on one side of the storage container (19), wherein the liquid level pipe (17) is respectively connected to the first liquid level detection unit (16) and the second liquid level detection unit (20).

9. The mud collection device according to claim 6, characterized in that: The gas control device also includes a compensation pipeline connected to the gas source (24) and a vacuum compensation valve (8) arranged on the compensation pipeline, the compensation pipeline having a first output end and a second output end, the first output end being connected to the pulp discharge pipeline (22) and the connection position being located between the first pulp discharge control valve (7) and the second pulp discharge control valve (9), the second output end being connected to the pulp feed pipeline (23) and the connection position being located between the first pulp feed control valve (10) and the second pulp feed control valve (12).

10. A tunnel construction equipment, characterized in that: The mud collecting device according to any one of claims 1 to 9 is used.

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