CN213231967U - Mud processing system in shield tunneling of muddy siltstone stratum - Google Patents
Mud processing system in shield tunneling of muddy siltstone stratum Download PDFInfo
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- CN213231967U CN213231967U CN202021291757.8U CN202021291757U CN213231967U CN 213231967 U CN213231967 U CN 213231967U CN 202021291757 U CN202021291757 U CN 202021291757U CN 213231967 U CN213231967 U CN 213231967U
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Abstract
The utility model discloses a mud processing system in shield of muddy siltstone stratum tunnelling, include: the slurry discharging pump is used for discharging the waste slurry discharged by the shield machine out of the shield machine; the waste slurry treatment device is communicated with the slurry discharge pump to receive the waste slurry discharged and conveyed by the slurry discharge pump; the new slurry preparation device is connected to the liquid phase outlet of the waste slurry treatment device to prepare the liquid phase into the shield slurry again; the slurry inlet pump is communicated with the slurry mixing pool of the new slurry preparation device so as to convey the shield slurry in the slurry mixing pool to the shield machine; the slag storage field is communicated with the solid phase outlet of the waste slurry treatment device to receive the slag soil generated by the waste slurry treatment device; is connected to the new slurry preparation device to receive the muck produced by the new slurry preparation device. The utility model discloses in the system can be to the circulation processing of shield structure useless thick liquid, makes the solid phase and the liquid phase separation of shield structure useless thick liquid, remains the useful liquid phase in the mud.
Description
Technical Field
The utility model relates to a shield constructs mud cyclic utilization technical field, concretely relates to mud processing system in shield of muddy siltstone stratum tunnelling.
Background
In the shield tunneling process of the argillaceous siltstone, the conventional treatment of shield slurry has a plurality of process defects. In the prior art, after mud-water separation treatment, a flocculating agent is added into waste mud by adopting a flocculation solidification method, after flocculation and stirring, supernatant is used for mechanically transporting the mud to the specific bottom of the mud, the method has low efficiency, large equipment floor area, long settling time and unsatisfactory effect, in addition, dynamic balance of required mud quality cannot be realized under the influence of weather, clear water is continuously added into an adjusting tank during actual tunneling to reduce the mud specific gravity, a filter press separation method is adopted by some construction units, the filter press utilizes the pressure generated by machinery to squeeze the mud through filter cloth, so that solid and liquid are separated, in recent years, the filter press is divided into different types of filter presses such as a belt type filter press, a plate frame filter, a diaphragm type filter press and the like by improving the structure of the filter press, the characteristics are different, but the low treatment efficiency cannot be overcome in the actual application process, the equipment floor area is large, to the big problem of flocculating agent and sparge water quantity, and inside filter screen needs regularly to be changed and clean, to the shield construction, can't satisfy the operation requirement of long-time continuous operation.
For example, the chinese utility model patent application No. cn201710701695.x discloses a shield high-concentration waste slurry treatment system, which includes a vibrating screening device, a flocculation tank, an "O" -shaped mixing pipe, and a centrifugal separation device; the inlet of the vibrating screening device is connected with the shield tunneling machine through a slurry discharge pipe, the outlet of the vibrating screening device is connected with the flocculation tank, a flocculating agent is added into the flocculation tank to flocculate the slurry, the flocculated slurry is connected with the O-shaped mixing pipe through a slurry conveying pipeline, the O-shaped mixing pipe plays a role in secondary mixing on the flocculated slurry, the mixed slurry flows out from the outlet of the O-shaped mixing pipe and then enters the centrifugal separation device, and the centrifugal separation device separates the slurry.
The prior art discloses a shield constructs high concentration abandonment mud processing system, and in actual application process, the effect of mud processing is unsatisfactory, can not effectually keep useful liquid phase, and above-mentioned prior art can not realize the cyclic utilization of mud moreover yet.
Based on the above-mentioned technical problem that prior art exists, the utility model provides a mud processing system in shield of muddy siltstone stratum tunnelling.
SUMMERY OF THE UTILITY MODEL
The utility model provides a mud processing system in shield of muddy siltstone stratum tunnelling.
The utility model adopts the following technical scheme:
a mud processing system in shield tunneling of muddy siltstone stratum comprises:
the slurry discharge pump is used for discharging the waste slurry of the shield machine out of the shield machine;
the waste slurry treatment device is communicated with the slurry discharge pump to receive the waste slurry discharged and conveyed by the slurry discharge pump and carry out solid-liquid separation on the waste slurry;
the new slurry preparation device is connected to the liquid phase outlet of the waste slurry treatment device to prepare the liquid phase into the shield slurry again;
the slurry inlet pump is communicated with the slurry mixing pool of the new slurry preparation device so as to convey the shield slurry in the slurry mixing pool to the shield machine;
the slag storage field is communicated with the solid phase outlet of the waste slurry treatment device to receive the slag soil generated by the waste slurry treatment device; is connected to the new slurry preparation device to receive the muck produced by the new slurry preparation device.
Furthermore, the waste slurry treatment device comprises a first separation sieve, a second separation sieve and a third separation sieve, wherein a solid phase outlet of the first separation sieve is communicated with the slag storage field, a liquid phase outlet of the first separation sieve is communicated with the second separation sieve, a solid phase outlet of the second separation sieve is communicated with the slag storage field, a liquid phase outlet of the second separation sieve is communicated with the third separation sieve, a solid phase outlet of the third separation sieve is communicated with the slag storage field, and a liquid phase outlet of the third separation sieve is communicated with the new slurry preparation device.
Furthermore, the new slurry preparation device comprises a sedimentation tank, a slurry box and a centrifuge, wherein the slurry mixing tank is communicated with the sedimentation tank, the sedimentation tank is communicated with the slurry box, the slurry box is communicated with the centrifuge, the residue soil separated by the centrifuge is conveyed to the residue storage field, a separated clear liquid outlet of the centrifuge is communicated with the slurry mixing tank, and the slurry mixing tank is communicated with the slurry inlet pump.
Further, the new pulp preparation device also comprises a flocculant dispensing box which is communicated with the centrifuge.
Further, the new slurry preparation device also comprises a clean water tank, and the clean water tank is communicated with the slurry mixing tank.
Further, the sieve plate of the first separating sieve is 5 meshes, the sieve plate of the second separating sieve is 18 meshes, and the sieve plate of the third separating sieve is 50 meshes.
Further, the size mixing tank is communicated with the upper part of the sedimentation tank through a first communication pipe.
Furthermore, the mud box is communicated with the bottom of the sedimentation tank through a second communicating pipe, and a first mud suction pump is arranged on the second communicating pipe.
Furthermore, a liquid phase outlet of the first separating screen flows into a screen plate of the second separating screen through gravity, a liquid phase outlet of the second separating screen flows into a screen plate of the third separating screen through gravity, a liquid phase outlet of the third separating screen is communicated with the slurry mixing pool through a first conveying pump, and solid phase outlets of the first separating screen, the second separating screen and the third separating screen are all used for conveying the residue soil to a residue storage field through a spiral conveyor.
Compared with the prior art, the utility model discloses a superior effect lies in:
1. the mud treatment system in the shield tunneling of the argillaceous siltstone stratum realizes the circular treatment of the shield waste slurry through the matching arrangement of the slurry discharge pump, the waste slurry treatment device, the new slurry preparation device and the slurry inlet pump, so that the solid phase and the liquid phase of the shield waste slurry are separated, and the useful liquid phase in the slurry is reserved;
2. mud processing system in shield of argillaceous siltstone stratum tunnelling, through sedimentation tank, transfer the cooperation setting of thick liquid pond, centrifuge and mud case, handle mud, do benefit to the cyclic utilization of mud.
Drawings
Figure 1 is the schematic diagram of mud processing system in the shield tunnelling of argillaceous siltstone stratum of the utility model.
In the figure: 1-slurry discharge pump, 2-shield machine, 3-waste slurry treatment device, 31-first separation sieve, 32-second separation sieve, 33-third separation sieve, 4-new slurry preparation device, 41-slurry mixing tank, 42-sedimentation tank, 43-slurry tank, 44-centrifuge, 45-flocculant preparation tank, 5-slurry inlet pump and 6-slag storage yard.
Detailed Description
In order to make the above objects, features and advantages of the present invention more clearly understood, the following detailed description of the present invention is made in conjunction with the accompanying drawings and the detailed description, it is to be noted that the features of the embodiments and examples of the present invention may be combined with each other without conflict.
Examples
As shown in fig. 1, a slurry treatment system in shield tunneling of a muddy siltstone stratum comprises:
the slurry discharge pump 1 is used for discharging the waste slurry of the shield machine 2 out of the shield machine 2;
the waste slurry treatment device 3 is communicated with the slurry discharge pump 1 to receive the waste slurry discharged and conveyed by the slurry discharge pump 1 and carry out three-stage solid-liquid separation on the waste slurry;
a new slurry preparation device 4 connected to the liquid phase outlet of the third separation screen 33 of the waste slurry treatment device 3 through the slurry mixing tank 41 of the new slurry preparation device 4 to prepare the liquid phase into shield slurry again;
the slurry inlet pump 5 is communicated with the slurry mixing tank 41 of the new slurry preparation device 4 so as to convey the shield slurry in the slurry mixing tank 41 to the shield tunneling machine 2;
the slag storage field 6 is communicated with the solid phase outlet of the waste slurry treatment device 3 to receive the slag soil generated by the waste slurry treatment device 3; the slag storage 6 is connected to the new slurry preparation apparatus 4 to receive the slag soil generated by the new slurry preparation apparatus 4.
The waste pulp treatment device 3 comprises a first separation sieve 31, a second separation sieve 32 and a third separation sieve 33, a solid phase outlet of the first separation sieve 31 is communicated with the slag storage site 6, a liquid phase outlet of the first separation sieve 31 is communicated with the second separation sieve 32, a solid phase outlet of the second separation sieve 32 is communicated with the slag storage site 6, a liquid phase outlet of the second separation sieve 32 is communicated with the third separation sieve 33, a solid phase outlet of the third separation sieve 33 is communicated with the slag storage site 6, and a liquid phase outlet of the third separation sieve 33 is communicated with the new pulp preparation device 4.
The new slurry preparing device 4 comprises the slurry mixing tank 41, a sedimentation tank 42, a slurry tank 43 and a centrifuge 44, wherein the slurry mixing tank 41 is communicated with the sedimentation tank 42, the sedimentation tank 42 is communicated with the slurry tank 43, the slurry tank 43 is communicated with the centrifuge 44, the residue soil separated by the centrifuge 44 is conveyed to the residue storage field 6, a separated clear liquid outlet of the centrifuge 44 is communicated with the slurry mixing tank 41, the slurry mixing tank 41 is communicated with the slurry inlet pump 5, and the mixed slurry is conveyed to the slurry inlet pump 5 so as to realize the cyclic utilization of the slurry.
The slurry mixing tank 41 is communicated with a municipal sewage pipe network (not shown in the figure), and slurry overflowing the slurry mixing tank 41 is directly discharged into the municipal sewage pipe network, so that pollution-free discharge is realized.
The new pulp preparation device 4 further comprises a flocculant dosing tank 45, the flocculant dosing tank 45 is communicated with the centrifuge 44, the concentration of the flocculant added into the centrifuge 44 by the flocculant dosing tank 45 is 1-4 per mill, and adjustment is performed according to the separated clear liquid of the centrifuge 44.
The new slurry preparation device further comprises a clean water tank (not shown), the clean water tank is communicated with the slurry mixing tank 41, and when the concentration value of the slurry in the slurry mixing tank 41 exceeds the concentration value of slurry entering during tunneling, clean water is conveyed to the slurry mixing tank 41 through the clean water tank to reduce the concentration of the slurry.
The sieve plate of the first separating sieve 31 is 5 meshes, the sieve plate of the second separating sieve 32 is 18 meshes, and the sieve plate of the third separating sieve 33 is 50 meshes.
In this embodiment, the first separating screen 31, the second separating screen 32, and the third separating screen 33 are three independent vibrating screen devices, and remove the dregs with different particle sizes through three-stage separation.
The mixing tank 41 is connected to the upper part of the settling tank 42 through a first connecting pipe (not shown), wherein the slurry overflowing from the mixing tank 41 flows into the settling tank 42.
The mud tank 43 is communicated with the bottom of the sedimentation tank 42 through a second communicating pipe (not shown), a first slurry suction pump (not shown) is arranged on the second communicating pipe, the bottom of the sedimentation tank 42 is slurry with high specific gravity, the slurry with high specific gravity exceeds the slurry inlet index during tunneling, the slurry is sent into the mud tank 43 through the first slurry suction pump, the mud tank 43 sends the slurry into the centrifuge 44 for centrifugal treatment, and separated clear liquid from the centrifuge 44 enters the slurry mixing tank 41 again.
The liquid phase outlet of the first separating screen 31 flows into the screen plate of the second separating screen 32 through gravity, the liquid phase outlet of the second separating screen 32 flows into the screen plate of the third separating screen 33 through gravity, the liquid phase outlet of the third separating screen 33 is communicated with the slurry mixing tank 41 through a first conveying pump (not shown), and the solid phase outlets of the first separating screen 32, the second separating screen 32 and the third separating screen 33 are all used for conveying the slag to the slag storage yard 6 through a screw conveyor (not shown).
The present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only for illustrating the principle of the present invention, without departing from the spirit and scope of the present invention, the present invention can also have various changes and improvements, and these changes and improvements all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims.
Claims (9)
1. The utility model provides a mud processing system in shield tunnelling of muddy siltstone stratum which characterized in that includes:
the slurry discharge pump is used for discharging the waste slurry of the shield machine out of the shield machine;
the waste slurry treatment device is communicated with the slurry discharge pump to receive the waste slurry discharged and conveyed by the slurry discharge pump and carry out solid-liquid separation on the waste slurry;
the new slurry preparation device is connected to the liquid phase outlet of the waste slurry treatment device to prepare the liquid phase into the shield slurry again;
the slurry inlet pump is communicated with the slurry mixing pool of the new slurry preparation device so as to convey the shield slurry in the slurry mixing pool to the shield machine;
the slag storage field is communicated with the solid phase outlet of the waste slurry treatment device to receive the slag soil generated by the waste slurry treatment device; the slag storage yard is connected with the new slurry preparation device to receive the slag soil generated by the new slurry preparation device.
2. The mud treatment system in shield tunneling of argillaceous siltstone strata according to claim 1, wherein the waste mud treatment device comprises a first separation sieve, a second separation sieve and a third separation sieve, a solid phase outlet of the first separation sieve is communicated with the slag storage field, a liquid phase outlet of the first separation sieve is communicated with the second separation sieve, a solid phase outlet of the second separation sieve is communicated with the slag storage field, a liquid phase outlet of the second separation sieve is communicated with the third separation sieve, a solid phase outlet of the third separation sieve is communicated with the slag storage field, and a liquid phase outlet of the third separation sieve is communicated with the new mud preparation device.
3. The system for treating mud in shield tunneling of argillaceous siltstone strata according to claim 2, wherein the new mud preparation device comprises a sedimentation tank, a mud tank and a centrifuge, the mud mixing tank is communicated with the sedimentation tank, the sedimentation tank is communicated with the mud tank, the mud tank is communicated with the centrifuge, the muck separated by the centrifuge is conveyed to the slag storage yard, a separated clear liquid outlet of the centrifuge is communicated with the mud mixing tank, and the mud mixing tank is communicated with the mud inlet pump.
4. The mud treatment system in shield tunneling of the argillaceous siltstone formation according to claim 3, wherein the new slurry preparation device further comprises a flocculant dosing tank, and the flocculant dosing tank is communicated with the centrifuge.
5. The mud treatment system in shield tunneling of argillaceous siltstone strata according to claim 4, wherein the new slurry preparation device further comprises a clean water tank, and the clean water tank is communicated with the slurry mixing tank.
6. The mud treatment system in shield tunneling of argillaceous siltstone strata according to claim 5, wherein the screen plate of the first separating screen is 5 meshes, the screen plate of the second separating screen is 18 meshes, and the screen plate of the third separating screen is 50 meshes.
7. The mud treatment system for the shield tunneling of the argillaceous siltstone formation according to claim 6, wherein the slurry conditioning tank is communicated with the upper part of the sedimentation tank through a first communication pipe.
8. The mud treatment system in the shield tunneling of the argillaceous siltstone formation according to claim 7, wherein the mud tank is communicated with the bottom of the sedimentation tank through a second communicating pipe, and a first slurry suction pump is arranged on the second communicating pipe.
9. The mud treatment system in shield tunneling of argillaceous siltstone strata according to claim 8, wherein a liquid phase outlet of the first separation screen flows onto a screen plate of the second separation screen by gravity, a liquid phase outlet of the second separation screen flows onto a screen plate of the third separation screen by gravity, a liquid phase outlet of the third separation screen is communicated with the slurry mixing tank through a first conveying pump, and solid phase outlets of the first separation screen, the second separation screen and the third separation screen convey muck to a muck storage field through a screw conveyor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021291757.8U CN213231967U (en) | 2020-07-03 | 2020-07-03 | Mud processing system in shield tunneling of muddy siltstone stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021291757.8U CN213231967U (en) | 2020-07-03 | 2020-07-03 | Mud processing system in shield tunneling of muddy siltstone stratum |
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| CN213231967U true CN213231967U (en) | 2021-05-18 |
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| CN202021291757.8U Active CN213231967U (en) | 2020-07-03 | 2020-07-03 | Mud processing system in shield tunneling of muddy siltstone stratum |
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