CN221002762U - Mud circulation system and shield machine - Google Patents
Mud circulation system and shield machine Download PDFInfo
- Publication number
- CN221002762U CN221002762U CN202322560768.1U CN202322560768U CN221002762U CN 221002762 U CN221002762 U CN 221002762U CN 202322560768 U CN202322560768 U CN 202322560768U CN 221002762 U CN221002762 U CN 221002762U
- Authority
- CN
- China
- Prior art keywords
- slurry
- mud
- air cushion
- discharging
- bin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000002002 slurry Substances 0.000 claims abstract description 333
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 61
- 239000007788 liquid Substances 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 9
- 238000007599 discharging Methods 0.000 abstract description 216
- 230000005641 tunneling Effects 0.000 abstract description 17
- 230000009286 beneficial effect Effects 0.000 description 18
- 230000006872 improvement Effects 0.000 description 17
- 239000002893 slag Substances 0.000 description 13
- 238000005192 partition Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 230000002195 synergetic effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model belongs to the technical field of tunneling equipment, and particularly provides a slurry circulation system and a shield tunneling machine. The slurry circulation system comprises a slurry cabin and an air cushion cabin, wherein the slurry cabin is communicated with a slurry cabin slurry discharging system, the air cushion cabin is communicated with an air cushion cabin slurry discharging system, the air cushion cabin slurry discharging system comprises an air cushion cabin slurry discharging main pipeline, the slurry cabin slurry discharging system comprises at least two slurry cabin slurry discharging pipelines, the slurry cabin slurry discharging system is provided with a slurry cabin slurry discharging pump, and the air cushion cabin slurry discharging main pipeline is connected with the air cushion cabin slurry discharging pump. The shield tunneling machine comprises the slurry circulating system. According to the utility model, at least two slurry discharging pipelines are arranged in the slurry discharging pipeline of the slurry tank, and independent slurry discharging pumps are arranged in the slurry discharging pipelines of the slurry tank and the air cushion tank, so that the flow area of slurry discharging is increased, the slurry discharging power is also improved, and the problem that the slurry discharging requirement is difficult to meet by only arranging one slurry discharging pipeline in the slurry tank in the prior art is solved.
Description
Technical Field
The utility model belongs to the technical field of tunneling equipment, and particularly relates to a slurry circulation system and a shield tunneling machine.
Background
The slurry balance shield machine is a shield machine which takes slurry as a medium to balance the stratum pressure of the tunnel excavation surface and slag is discharged through a slurry circulation system, has the advantages of high tunneling speed, high settlement control precision and the like, and is widely applied to construction and construction of tunnels crossing the river and the sea. The slurry circulation system is a core system related to whether the slurry balance shield machine can normally tunnel.
The slurry balance shield machine generally comprises a slurry bin and an air cushion bin, wherein the slurry bin is a bin between the excavation surface of the shield machine and the front partition plate, the air cushion bin is a bin between the front partition plate and the rear partition plate of the shield machine, and the bottom of the slurry bin is communicated with the air cushion bin. The slurry circulation system comprises a slurry inlet pipeline, a slurry outlet pipeline and pumps and valves for controlling the pipelines. Conventional slurry balance shield machines typically provide a single slurry discharge line at the bottom of the air cushion bin to pump away the slurry and muck. But the phenomenon of stagnation and blockage easily occurs in practical application, and the working efficiency is low.
In order to solve the problems, the application publication number CN 114215535A of the applicant discloses a mud circulation system, and the application provides a mud circulation system structure with a mud discharging pipeline arranged on each of a mud water bin and an air cushion bin, so that the mud water bin and the air cushion bin can be used for discharging slag simultaneously. However, the mud water bin is closer to the face, and for a large-diameter shield machine, the stagnation and discharge pressure is still larger, and at the moment, the slurry discharge requirement is still difficult to meet by only arranging a slurry discharge pipeline in the mud water bin.
In addition, under actual working conditions, in order to avoid the problems that a formed mud cake is stuck to a cutter disc, the shield body deflects circumferentially during long-distance tunneling (the shield body deflects circumferentially at a larger angle to easily damage the structure of parts in the shield body), and the like, the rotation direction of the cutter disc needs to be continuously changed, the mud flow direction in a mud water bin can also be changed along with the change of the rotation direction of the cutter disc, the problem that the heights of mud liquid levels at two sides are inconsistent occurs, the slag discharging requirement during reversing rotation of the cutter disc cannot be met, and particularly, in a large-diameter shield machine, the phenomenon of stagnation and discharge still exists. In theory, the mud pipeline of the mud sump is arranged at the bottom, so that the mud sump can have the best slag discharging effect, but in practice, for some shield machines, a slag crusher may need to be arranged at the bottom of the mud sump, so that the space at the bottom of the mud sump is more limited.
Disclosure of utility model
The utility model aims to provide a mud circulation system, which solves the technical problem that in the prior art, only one mud discharging pipeline is arranged in a mud water bin in a double-row mode of the mud water bin and an air cushion bin, so that the mud discharging requirement is difficult to meet. The utility model also aims to provide a shield machine so as to solve the same technical problems.
In order to achieve the above purpose, the technical scheme of the mud circulation system provided by the utility model is as follows:
The utility model provides a mud circulation system, includes muddy water storehouse and air cushion storehouse, and muddy water storehouse intercommunication has muddy water storehouse to arrange thick liquid system, and air cushion storehouse intercommunication has air cushion storehouse to arrange thick liquid system, and air cushion storehouse arranges thick liquid system including air cushion storehouse arranges thick liquid main line, and muddy water storehouse arranges thick liquid system includes two at least muddy water storehouse and arranges thick liquid pipeline, and muddy water storehouse arranges thick liquid system configuration has muddy water storehouse to arrange thick liquid pump, and air cushion storehouse arranges thick liquid main line and is connected with air cushion storehouse and arranges thick liquid pump.
The beneficial effects are that: the utility model improves the slurry circulation system of the shield tunneling machine in the prior art. In the tunneling process, slurry can be discharged simultaneously from the slurry bin and the air cushion bin according to different slurry discharge requirements, and more than two slurry discharge pipelines are arranged in the slurry bin, so that slurry can be discharged from different positions of the slurry bin. In addition, the slurry discharging pump of the muddy water bin and the slurry discharging pump of the air cushion bin can work simultaneously, so that the slurry discharging capacity is further improved. Based on the joint cooperation of the multi-row slurry pipelines and the slurry discharge pump, the slurry discharge capacity of the shield machine is improved, and the problem that the slurry discharge requirement is difficult to meet by only arranging one slurry discharge pipeline in a slurry bin in the prior art is solved.
As a further improvement, at least two slurry-cabin slurry-discharging pipelines are converged into the same slurry-cabin slurry-discharging main pipeline, and the slurry-cabin slurry-discharging pump is arranged on the slurry-cabin slurry-discharging main pipeline.
The beneficial effects are that: the adoption of the branch pipeline mode can reduce the whole length of the slurry discharge pipeline, reduce the number of slurry discharge pumps and reduce the cost.
As a further improvement, the main slurry discharging pipeline of the slurry tank and the main slurry discharging pipeline of the air cushion tank are communicated through a communication pipeline, and the communication position is positioned before the slurry discharging pump of the air cushion tank and the slurry discharging pump of the slurry tank.
The beneficial effects are that: the synergistic deslagging effect of two bins and a plurality of pulp pumps is formed, and the pulp discharging capability is further improved.
As a further improvement, the main slurry discharging pipeline of the slurry tank and the main slurry discharging pipeline of the air cushion tank are communicated on the main slurry discharging pipeline of the system, and the communicating position is positioned behind the slurry discharging pump of the air cushion tank and the slurry discharging pump of the slurry tank.
The beneficial effects are that: ensure that the air cushion cabin pulp discharging pump and the muddy water cabin pulp discharging pump can independently provide pumping power for the air cushion cabin pulp discharging pipeline and the muddy water cabin pulp discharging pipeline.
As a further improvement, at least one mud water bin slurry discharging pipeline is arranged on the left half side of the mud water bin, and at least one mud water bin slurry discharging pipeline is arranged on the right half side of the mud water bin.
The beneficial effects are that: the left half side and the right half side of the mud sump are respectively provided with a mud discharging pipeline, when the cutter head rotates in one direction, the mud discharging pipeline of one of the left half side and the right half side discharges mud, and when the cutter head switches the rotating direction, the mud discharging pipeline of the other of the left half side and the right half side discharges mud, so that uninterrupted mud discharging of the mud sump can be realized, and the mud discharging capacity of the shield machine is further improved.
As a further improvement, the slurry discharging pipeline of the slurry bin arranged on the left half side of the slurry bin is flush with the slurry discharging pipeline of the slurry bin arranged on the right half side of the slurry bin.
The beneficial effects are that: the design is not only convenient for assemble, but also makes no matter what direction the cutterhead rotates along, and the same slag discharging effect in the muddy water bin can be ensured.
As a further improvement, the air cushion cabin is communicated with 1 pulp discharging pipeline, the pulp discharging pipeline forms a main pulp discharging pipeline of the air cushion cabin, and the pulp discharging pipeline is arranged at the bottom center of the air cushion cabin.
The beneficial effects are that: the main slurry discharging pipeline of the air cushion bin is arranged at the center of the bottom of the air cushion bin, and when the left-right reversing rotation of the cutter disc can be guaranteed only by arranging 1 path, the air cushion bin has the same slurry discharging capacity.
As a further improvement, the slurry circulation system further comprises a slurry feeding system, wherein the slurry feeding system comprises a slurry feeding main pipeline, the slurry feeding main pipeline is communicated with each slurry discharging pipeline of the slurry storage bin through a first bypass pipeline, the slurry feeding main pipeline is communicated with the slurry discharging main pipeline of the air cushion storage bin through a second bypass pipeline, and the second bypass pipeline is connected to the first bypass pipeline.
The beneficial effects are that: this reduces the length of the bypass line and thus reduces the line cost of the large diameter tunnel.
As a further improvement, a mud door which can be controlled to open and close is arranged between the air cushion bin and the mud water bin.
The beneficial effects are that: the slurry can be discharged from the slurry bin or the air cushion bin independently by controlling the opening and closing of the slurry door, so that the slurry discharging working mode is increased.
In order to achieve the above purpose, the technical scheme of the shield tunneling machine provided by the utility model is as follows:
The shield machine comprises a cutter head, a shield body and a slurry circulation system, wherein the slurry circulation system comprises a slurry cabin and an air cushion cabin, the slurry cabin is communicated with a slurry cabin slurry discharging system, the air cushion cabin is communicated with an air cushion cabin slurry discharging system, the air cushion cabin slurry discharging system comprises an air cushion cabin slurry discharging main pipeline, the slurry cabin slurry discharging system comprises at least two slurry cabin slurry discharging pipelines, the slurry cabin slurry discharging system is provided with a slurry cabin slurry discharging pump, and the air cushion cabin slurry discharging main pipeline is connected with the air cushion cabin slurry discharging pump.
The beneficial effects are that: the utility model improves the slurry circulation system of the shield tunneling machine in the prior art. In the tunneling process, slurry can be discharged simultaneously from the slurry bin and the air cushion bin according to different slurry discharge requirements, and more than two slurry discharge pipelines are arranged in the slurry bin, so that slurry can be discharged from different positions of the slurry bin. In addition, the slurry discharging pump of the muddy water bin and the slurry discharging pump of the air cushion bin can work simultaneously, so that the slurry discharging capacity is further improved. Based on the joint cooperation of the multi-row slurry pipelines and the slurry discharge pump, the slurry discharge capacity of the shield machine is improved, and the problem that the slurry discharge requirement is difficult to meet by only arranging one slurry discharge pipeline in a slurry bin in the prior art is solved.
As a further improvement, at least two slurry-cabin slurry-discharging pipelines are converged into the same slurry-cabin slurry-discharging main pipeline, and the slurry-cabin slurry-discharging pump is arranged on the slurry-cabin slurry-discharging main pipeline.
The beneficial effects are that: the adoption of the branch pipeline mode can reduce the whole length of the slurry discharge pipeline, reduce the number of slurry discharge pumps and reduce the cost.
As a further improvement, the main slurry discharging pipeline of the slurry tank and the main slurry discharging pipeline of the air cushion tank are communicated through a communication pipeline, and the communication position is positioned before the slurry discharging pump of the air cushion tank and the slurry discharging pump of the slurry tank.
The beneficial effects are that: the synergistic deslagging effect of two bins and a plurality of pulp pumps is formed, and the pulp discharging capability is further improved.
As a further improvement, the main slurry discharging pipeline of the slurry tank and the main slurry discharging pipeline of the air cushion tank are communicated on the main slurry discharging pipeline of the system, and the communicating position is positioned behind the slurry discharging pump of the air cushion tank and the slurry discharging pump of the slurry tank.
The beneficial effects are that: ensure that the air cushion cabin pulp discharging pump and the muddy water cabin pulp discharging pump can independently provide pumping power for the air cushion cabin pulp discharging pipeline and the muddy water cabin pulp discharging pipeline.
As a further improvement, at least one mud water bin slurry discharging pipeline is arranged on the left half side of the mud water bin, and at least one mud water bin slurry discharging pipeline is arranged on the right half side of the mud water bin.
The beneficial effects are that: the left half side and the right half side of the mud sump are respectively provided with a mud discharging pipeline, when the cutter head rotates in one direction, the mud discharging pipeline of one of the left half side and the right half side discharges mud, and when the cutter head switches the rotating direction, the mud discharging pipeline of the other of the left half side and the right half side discharges mud, so that uninterrupted mud discharging of the mud sump can be realized, and the mud discharging capacity of the shield machine is further improved.
As a further improvement, the slurry discharging pipeline of the slurry bin arranged on the left half side of the slurry bin is flush with the slurry discharging pipeline of the slurry bin arranged on the right half side of the slurry bin.
The beneficial effects are that: the design is not only convenient for assemble, but also makes no matter what direction the cutterhead rotates along, and the same slag discharging effect in the muddy water bin can be ensured.
As a further improvement, the air cushion cabin is communicated with 1 pulp discharging pipeline, the pulp discharging pipeline forms a main pulp discharging pipeline of the air cushion cabin, and the pulp discharging pipeline is arranged at the bottom center of the air cushion cabin.
The beneficial effects are that: the main slurry discharging pipeline of the air cushion bin is arranged at the center of the bottom of the air cushion bin, and when the left-right reversing rotation of the cutter disc can be guaranteed only by arranging 1 path, the air cushion bin has the same slurry discharging capacity.
As a further improvement, the slurry circulation system further comprises a slurry feeding system, wherein the slurry feeding system comprises a slurry feeding main pipeline, the slurry feeding main pipeline is communicated with each slurry discharging pipeline of the slurry storage bin through a first bypass pipeline, the slurry feeding main pipeline is communicated with the slurry discharging main pipeline of the air cushion storage bin through a second bypass pipeline, and the second bypass pipeline is connected to the first bypass pipeline.
The beneficial effects are that: this reduces the length of the bypass line and thus reduces the line cost of the large diameter tunnel.
As a further improvement, a mud door which can be controlled to open and close is arranged between the air cushion bin and the mud water bin.
The beneficial effects are that: the slurry can be discharged from the slurry bin or the air cushion bin independently by controlling the opening and closing of the slurry door, so that the slurry discharging working mode is increased.
Drawings
FIG. 1 is a schematic view of an embodiment 1 of a slurry circulation system according to the present utility model;
FIG. 2 is a schematic view of an embodiment 2 of a slurry circulation system according to the present utility model;
FIG. 3 is a rear view of the front bulkhead of example 3 of the mud circulation system of the utility model;
fig. 4 is a rear view of the rear bulkhead of embodiment 3 of the mud circulation system of the present utility model.
Reference numerals illustrate:
1. A cutterhead; 2. a mud water bin; 3. an air cushion bin; 4. a slurry inlet branch pipeline; 5. a valve; 6. a bypass line; 7. a slurry inlet pump; 8. a mud door; 9. a first slurry discharge pipeline of the slurry bin; 10. a second slurry discharge pipeline of the slurry bin; 11. an air cushion bin slurry discharge pipeline; 12. a mud water bin mud discharging main pipeline; 13. a mud pump for mud water bin; 14. an air cushion bin slurry discharge pump; 15. a main slurry discharge pipeline; 16. a main slurry pump; 17. a main slurry inlet pipeline; 18. a communicating pipe; 19. a front baffle; 20. and a rear partition plate.
Detailed Description
In order to solve the problem of stagnation and drainage of the large-diameter slurry balance shield machine, the basic technical concept of the utility model is that slurry drainage pipelines are arranged in both a slurry cabin and an air cushion cabin, at least two paths of slurry drainage pipelines are arranged in the slurry drainage pipelines of the slurry cabin, and independent slurry drainage pumps are arranged in the slurry drainage pipelines of the slurry cabin and the air cushion cabin, so that the flow area of slurry drainage is increased, the slurry drainage power is also improved, and the slurry balance shield machine is suitable for the large-diameter slurry balance shield machine.
The present utility model is described in further detail below with reference to examples.
Specific example 1 of a mud circulation system provided by the present utility model:
The mud circulation system provided in this embodiment is shown in fig. 1, and includes mud sump 2 and air cushion storehouse 3, and mud sump 2 and air cushion storehouse 3 are enclosed by the shield body and the shield body baffle of shield machine and are closed, and shield body baffle includes preceding baffle 19 and back baffle 20, and concrete mud sump 2 and air cushion storehouse 3's theory of operation is unanimous with prior art, and the details are not repeated. The mud water bin 2 is communicated with the air cushion bin 3, and is respectively connected with a pulp inlet system and a pulp discharge system. The pulp feeding system comprises a pulp feeding main pipeline 17, the pulp feeding main pipeline 17 is connected with a pulp feeding pump 7, and the front end of the pulp feeding main pipeline 17 is provided with a pulp feeding branch pipeline 4 which is respectively communicated with the mud sump 2 and the air cushion sump 3. Valves 5 for controlling the opening and closing of the main pulp inlet pipeline 17 and the pulp discharge pipelines and the bypass pipeline 6 are arranged on the main pulp inlet pipeline.
The slurry discharging system comprises a slurry discharging system of a slurry bin and a slurry discharging system of an air cushion bin. The mud sump slurry discharging system comprises two slurry discharging pipelines, namely a first slurry discharging pipeline 9 of the mud sump arranged on the left half side of the mud sump and a second slurry discharging pipeline 10 of the mud sump arranged on the right half side of the mud sump. The first slurry discharging pipeline 9 of the slurry tank and the second slurry discharging pipeline 10 of the slurry tank extend backwards (front and back in the tunneling direction) and are converged on the main slurry discharging pipeline 12 of the slurry tank, and the main slurry discharging pipeline 12 of the slurry tank is connected with the slurry discharging pump 13 of the slurry tank, so that the length of the whole pipeline can be reduced, and the cost can be reduced.
The air cushion cabin pulp discharging system comprises an air cushion cabin pulp discharging main pipeline, in particular 1 air cushion cabin pulp discharging pipeline 11 arranged in the center of the bottom of the air cushion cabin 3, and the air cushion cabin pulp discharging pipeline forms the air cushion cabin pulp discharging main pipeline. The air cushion cabin pulp discharging pipeline 11 is connected with an air cushion cabin pulp discharging pump 14, the muddy water cabin pulp discharging main pipeline 12 and the air cushion cabin pulp discharging pipeline 11 are converged in a main pulp discharging pipeline 15, the convergence point is positioned behind the muddy water cabin pulp discharging pump 13 and the air cushion cabin pulp discharging pump 14, and the main pulp discharging pipeline 15 is connected with a main pulp discharging pump 16.
The embodiment can realize that the mud water bin 2 and the air cushion bin 3 can discharge mud or dregs outwards at the same time, thereby improving the mud discharging capacity of the mud circulation system. The mud water bin pulp discharging pipeline comprises two mud water bin pulp discharging pipelines, so that the mud water bin pulp discharging pipeline has larger through flow pulp discharging area, and the mud water bin pulp discharging pipeline and the air cushion bin pulp discharging pipeline are connected with a pulp discharging pump, so that pulp discharging power is guaranteed. Compared with the prior art, the slurry discharging capacity of the whole slurry circulating system is improved, and the slurry discharging device is suitable for a large-diameter shield machine.
In addition, when the cutter head 1 of the shield tunneling machine rotates clockwise, the mud in the mud sump moves from right to left along with the cutter head 1, and at the moment, the mud sump first mud discharge pipeline 9 at the left half side discharges the mud outwards; when the cutter head 1 of the shield tunneling machine rotates anticlockwise in a reversing manner, mud in the mud water bin moves along with the cutter head 1 from left to right, and at the moment, the mud water bin second mud discharging pipeline 10 on the right half side discharges mud outwards. Therefore, the slurry discharging pipeline of the slurry bin is not required to be arranged at the bottom, sufficient space is reserved for arranging the stone breaking device at the bottom, and slurry can be discharged from the slurry bin when the cutterhead rotates in a reversing manner, so that the slurry discharging capacity of the shield tunneling machine is improved.
The bypass pipeline 6 comprises a first bypass pipeline connected between the main slurry inlet pipeline 17 and the main slurry outlet pipeline 12 of the slurry storage bin, and the slurry outlet pipeline 11 of the air cushion storage bin is communicated with the first bypass pipeline through a second bypass pipeline, so that the bypass mode is smoothly realized, the whole length of the bypass pipeline 6 is reduced, and the cost is reduced.
The mud door 8 capable of controlling the opening and closing is further arranged between the mud water bin 2 and the air cushion bin 3, the opening and closing of the mud door 8 can control the opening and closing of the communication port between the mud water bin 2 and the air cushion bin 3, and at the moment, the embodiment can realize the slurry discharge from the mud water bin 2 or the air cushion bin 3 independently, so that the following three slurry discharge modes are realized:
(1) Double-bin mixed pulp discharging mode: the mud door 8 is opened, the valve 5 of the mud sump first mud discharging pipeline 9 or the mud sump second mud discharging pipeline 10 is selectively opened according to the steering direction of the cutter head 1, the valves 5 on the mud sump main mud discharging pipeline 12 and the air cushion sump mud discharging pipeline 11 are opened, the valve 5 on the bypass pipeline 6 is closed after the valves are completely opened, and the mud discharging system simultaneously discharges slag from the mud sump 2 and the air cushion sump 3.
(2) Air cushion warehouse single warehouse pulp discharging mode: the mud door 8 is opened, the valve 5 on the air cushion cabin mud discharging pipeline 11 is opened, the valve 5 on the bypass pipeline 6 is closed after the valve is completely opened, and the mud discharging system singly discharges the mud from the air cushion cabin 3.
(3) Slurry discharging mode of a slurry warehouse: the mud door 8 is closed, the valve 5 of the first mud discharging pipeline 9 of the mud sump or the second mud discharging pipeline 10 of the mud sump is selectively opened according to the steering direction of the cutter head 1, the valve on the main mud discharging pipeline 12 of the mud sump is opened, the valve 5 on the bypass pipeline 6 is closed after the valve is completely opened, and the mud discharging system singly discharges slag from the mud sump 2.
The concrete example 2 of the slurry circulation system provided by the utility model is mainly different from the example 1 in that: in this embodiment, the second slurry discharging pipeline 10 of the slurry tank is communicated with the slurry discharging pipeline 11 of the air cushion tank through the communicating pipe 18, the communicating position is located before the slurry discharging pump 13 of the slurry tank and the slurry discharging pump 14 of the air cushion tank, and the connecting pipe 18 is connected with the valve 5, as shown in fig. 2, at this time, the first slurry discharging pipeline and the second slurry discharging pipeline of the slurry tank 2 are both communicated with the slurry discharging pipeline 11 of the air cushion tank, which is equivalent to increasing the pipeline flow area capable of discharging slurry outwards from the slurry tank 2 and the air cushion tank 3, and further improving the slurry discharging capability. Therefore, the embodiment realizes the cooperative slurry discharge of the multi-row slurry pump and the multi-pipeline, and can realize the synchronous slag discharge of the slurry bin and the air cushion bin when one pipeline is blocked. In addition, this embodiment also realizes a double-in-line mode of operation, and when the double-in-line mode is operated, the mud door 8 is closed, and the first mud discharging pipeline 9 of the mud sump, the second mud discharging pipeline 10 of the mud sump, the air cushion sump and the main mud discharging pipeline 11, the main mud discharging pipeline 12 of the mud sump, and the valve 5 on the connecting pipe 18 are opened completely, and then the valve 5 on the bypass pipeline 6 is closed, and the mud discharging system independently discharges slag from the mud sump 2.
The concrete example 3 of the slurry circulation system provided by the utility model is mainly different from the example 1 in that: in embodiment 1, the first slurry discharging pipeline 9 of the slurry tank and the second slurry discharging pipeline 10 of the slurry tank are not flush, and the first slurry discharging pipeline 9 of the slurry tank is higher than the second slurry discharging pipeline 10 of the slurry tank. In this embodiment, in order to make the slurry discharging capability of the slurry tank 2 the same when the cutterhead rotates clockwise and counterclockwise, the slurry tank first slurry discharging pipeline 9 and the slurry tank second slurry discharging pipeline 10 are flush, as shown in fig. 3 and 4, the slurry discharging pipes provided by the front partition plate 19 and the rear partition plate 20 are flush.
The concrete example 4 of the slurry circulation system provided by the utility model is mainly different from the example 1 in that: in embodiment 1, the muddy water bin discharging pipeline comprises two muddy water bin discharging pipelines. In this embodiment, the slurry discharging pipeline of the slurry tank includes three or more than three slurry discharging pipelines, and each slurry discharging pipeline can be converged on the slurry discharging main pipeline of the slurry tank.
The concrete example 5 of the slurry circulation system provided by the utility model is mainly different from the example 1 in that: in embodiment 1, one air cushion cabin pulp discharging pipeline is arranged. In this embodiment, two air cushion chamber pulp discharging pipelines may be provided, and the two air cushion chamber pulp discharging pipelines are converged on the air cushion chamber pulp discharging main pipeline, and at this time, the two air cushion chamber pulp discharging main pipelines may be also provided on the left and right sides of the air cushion chamber.
The concrete example 6 of the slurry circulation system provided by the utility model is mainly different from the example 1 in that: in embodiment 1, the first slurry discharge pipe 9 of the slurry tank and the second slurry discharge pipe 10 of the slurry tank extend rearward and merge into the main slurry discharge pipe 12 of the slurry tank. In this embodiment, the first slurry discharging pipeline of the slurry tank and the second slurry discharging pipeline of the slurry tank are not converged, and each slurry discharging pipeline of the slurry tank is configured with an independent slurry discharging pump of the slurry tank, but at this time, the length of the corresponding pipeline is correspondingly increased, and the cost is correspondingly increased.
The concrete example 7 of the slurry circulation system provided by the utility model is mainly different from the example 2 in that: in embodiment 2, the slurry tank second slurry discharging pipeline 10 is connected with the air cushion tank slurry discharging pipeline 11 through the communicating pipe 18, and the slurry tank first slurry discharging pipeline 9 and the slurry tank second slurry discharging pipeline 10 are converged in the slurry tank slurry discharging main pipeline 12, so that the slurry tank first slurry discharging pipeline 9 does not need to be separately connected with the slurry tank slurry discharging main pipeline 12. In this embodiment, the mud water bin circulation system includes a first slurry discharge pipeline and a second slurry discharge pipeline connected in parallel, and both pipelines are connected with the slurry discharge pipeline of the air cushion bin through connecting pipes separately.
The concrete example 8 of the slurry circulation system provided by the utility model is mainly different from the example 1 in that: in embodiment 1, the first slurry discharging pipeline 9 of the slurry tank and the second slurry discharging pipeline 10 of the slurry tank are arranged on the left and right sides of the slurry tank, and the purpose of this is to provide a larger space for installing the slag crusher. In this embodiment, according to different strata, the slag stone crusher may not be provided, and at this time, the slurry discharging pipeline of the slurry tank may be disposed at the bottom of the slurry tank.
The specific embodiment of the shield tunneling machine comprises:
The shield machine comprises a cutter head 1 and a shield body, wherein an axial space between a front baffle plate of the shield body and the cutter head 1 forms a mud water bin 2, an axial space between a rear baffle plate of the shield body and the cutter head 1 forms an air cushion bin 3, the mud water bin 2 and the air cushion bin 3 and each pipeline form a mud circulation system, and the mud circulation system is the mud circulation system recorded in any one of the embodiments 1 to 8 of the mud circulation system, and is not specifically described herein.
It should be noted that the above-mentioned embodiments are merely preferred embodiments of the present utility model, and the present utility model is not limited to the above-mentioned embodiments, but may be modified without inventive effort or equivalent substitution of some of the technical features thereof by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The utility model provides a mud circulation system, includes muddy water storehouse and air cushion storehouse, and muddy water storehouse intercommunication has muddy water storehouse to arrange thick liquid system, and air cushion storehouse intercommunication has air cushion storehouse to arrange thick liquid system, and air cushion storehouse arranges thick liquid system including air cushion storehouse arranges thick liquid main line, its characterized in that, muddy water storehouse arranges thick liquid system includes two at least muddy water storehouse arranges thick liquid pipelines, and muddy water storehouse arranges thick liquid system configuration has muddy water storehouse to arrange thick liquid pump, and air cushion storehouse arranges thick liquid main line connection has air cushion storehouse to arrange thick liquid pump.
2. The slurry circulation system of claim 1, wherein at least two slurry tank discharge pipelines merge into the same slurry tank discharge main pipeline, and the slurry tank discharge pump is disposed on the slurry tank discharge main pipeline.
3. The mud circulation system according to claim 2, wherein the main mud-bin discharge pipe and the main air-cushion-bin discharge pipe are communicated through a communication pipe, and the communication position is located before the air-cushion-bin discharge pump and the mud-water-bin discharge pump.
4. The mud circulation system according to claim 2, wherein the main mud-bin and air-cushion-bin discharge pipes are connected to the main system discharge pipe, and the connection is located after the air-cushion-bin and mud-water-bin discharge pumps.
5. The mud circulation system of any one of claims 1-4, wherein at least one mud pit discharge line is provided on the left half of the mud pit and at least one mud pit discharge line is provided on the right half of the mud pit.
6. The mud circulation system of claim 5, wherein the mud sump discharge line provided on the left half of the mud sump is flush with the mud sump discharge line provided on the right half of the mud sump.
7. A mud circulation system according to any one of claims 1-4, wherein the air cushion chamber is connected with 1 mud discharge pipe, the mud discharge pipe forms a main mud discharge pipe of the air cushion chamber, and the mud discharge pipe is arranged at the bottom center of the air cushion chamber.
8. The slurry circulation system according to any one of claims 1 to 4, further comprising a slurry inlet system comprising a slurry inlet main line, wherein the slurry inlet main line is in communication with each of the slurry storage tanks slurry discharge lines via a first bypass line, wherein the slurry inlet main line is in communication with the air cushion storage tank slurry discharge main line via a second bypass line, and wherein the second bypass line is connected to the first bypass line.
9. The mud circulation system of any one of claims 1 to 4, wherein a controllable opening and closing mud door is provided between the air cushion bin and the mud water bin.
10. The shield machine comprises a cutter head, a shield body and a mud circulation system, and is characterized in that the mud circulation system is the mud circulation system according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322560768.1U CN221002762U (en) | 2023-09-20 | 2023-09-20 | Mud circulation system and shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322560768.1U CN221002762U (en) | 2023-09-20 | 2023-09-20 | Mud circulation system and shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221002762U true CN221002762U (en) | 2024-05-24 |
Family
ID=91125462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322560768.1U Active CN221002762U (en) | 2023-09-20 | 2023-09-20 | Mud circulation system and shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221002762U (en) |
-
2023
- 2023-09-20 CN CN202322560768.1U patent/CN221002762U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107489428B (en) | Slurry circulation system for slurry balance shield machine | |
| CN110306991B (en) | Muddy water soil pressure dual-mode shield tunneling machine | |
| CN109281685B (en) | Step-by-step decompression type shield tunneling machine | |
| CN104775826A (en) | Continuous switching construction method of muddy water soil pressure double-mode type shield | |
| CN210217732U (en) | Slurry-soil pressure double-mode shield machine | |
| CN112727481B (en) | Excavation cabin direct discharge slurry shield machine and excavation cabin direct discharge slurry method | |
| CN109057812B (en) | Mud cake scouring prevention system of shield machine | |
| CN207177902U (en) | Mud circulation system for slurry balance shield machine | |
| CN202441388U (en) | System for dredging clogged slurry door of slurry shield by virtue of back washing | |
| CN221002762U (en) | Mud circulation system and shield machine | |
| CN104695969A (en) | Method for switching slurry tunneling mode to earth pressure tunneling mode of shield tunneling machine | |
| CN207048793U (en) | A kind of decompression type shield machine step by step | |
| CN216305920U (en) | Slurry shield circulation system with double crushers and double slurry discharge channels | |
| CN114109412B (en) | Slurry shield circulation system and method based on double crushers and double slurry channels | |
| CN112343616B (en) | Shield tunneling machine muck improving method | |
| CN202431275U (en) | Reverse circulation clogged slurry door dredging system for slurry shield | |
| CN113863947A (en) | Air cushion type slurry balance shield machine for solving problem of stagnant discharge and construction method thereof | |
| CN112253152A (en) | Shield constructs quick-witted dregs improvement system | |
| CN205078278U (en) | Foam nozzle and shield construct quick -witted foaming system | |
| CN211258613U (en) | Cutter head of EPB-TBM double-mode shield tunneling machine | |
| CN113898370A (en) | Multichannel slurry discharge system and shield tunneling machine | |
| CN214007156U (en) | Shield machine and muck improvement system thereof | |
| CN221236718U (en) | Slag discharging and removing system and tunnel boring machine | |
| CN221074257U (en) | High-pressure water supply structure of push bench | |
| CN110905521A (en) | Slurry scouring circulation slag discharging system for vertical shaft tunneling machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |