CN211027004U - Slurry balance shield active screening quarrying device - Google Patents
Slurry balance shield active screening quarrying device Download PDFInfo
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- CN211027004U CN211027004U CN201921469752.7U CN201921469752U CN211027004U CN 211027004 U CN211027004 U CN 211027004U CN 201921469752 U CN201921469752 U CN 201921469752U CN 211027004 U CN211027004 U CN 211027004U
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Abstract
The utility model discloses a muddy water balance shield constructs initiative screening quarrying device aims at solving current quarrying device and can not provide reliable screening effect's technical problem for shield structure muddy water circulation system. The device comprises a screening and stirring cylinder, a circulating pipeline and a quarrying box, wherein the screening and stirring cylinder comprises two external cylinders which are coaxially arranged and a rotatable grid cylinder; the grid barrel is provided with a rotating shaft, a spiral conveying mechanism is fixedly arranged inside the grid barrel, the rotating shaft is fixedly connected with the grid barrel, a circulating pipeline communicated with the grid barrel is correspondingly arranged below the grid barrel, a quarrying box is fixedly arranged below the circulating pipeline, and the quarrying box is communicated with the grid barrel at the opening end of the grout outlet pipeline. The utility model has the advantages of compact structure is convenient for make and install, through the separately collection to big stone and little stone, and to a great extent has reduced the clearance frequency of quarrying case, and then has improved tunnelling efficiency.
Description
Technical Field
The utility model relates to a slurry shield constructs equipment technical field, concretely relates to slurry balance shield constructs initiative screening quarrying device.
Background
With the continuous growth of the infrastructure of China, the utilization of underground space is also the key direction of the current domestic construction research, and with the introduction of the shield, the development of the underground space becomes more and more convenient and safer, and the slurry balance shield is widely applied to underground engineering by virtue of better stability and more reliable safety.
The slurry balance shield slag discharge completely depends on the circulation flow of slurry, so that a large amount of pebbles or crushed rock blocks with the particle size of 20-250 mm can be generated on the cutting tunnel face in the tunneling process of sandy gravel stratum, round gravel stratum, strongly weathered rock stratum, fault fracture zone, calcareous mudstone, siltstone and other strata, and the large-particle-size particles can enter a slurry pipeline through slurry circulation after entering a slurry bin and are pumped to ground separation equipment or a slag yard through a slurry discharge pump. However, when pebbles or broken rocks with a maximum particle size of 160mm to 200mm enter the p2.1 pump, a slurry discharge pump (p 2.1 pump) of a general slurry shield can block or block a suction port and an impeller of the p2.1 pump, so that tunneling cannot be performed, and the slurry discharge pump needs to be cleaned and disassembled for a long time.
Therefore, when the stratum is tunneled, the quarrying device is arranged in front of the p2.1 pump, but the existing quarrying device is generally in a cylindrical box structure, a grid is arranged in the quarrying device to filter pebbles or stones with large particle sizes, but the large-particle-size pebbles are blocked by the grid, and then stones with smaller particle sizes are blocked by the grid to fall into the quarrying box, so that the quarrying box is quickly filled, and the tunneling cannot be performed. The quarrying device needs frequent unpacking and cleaning, and the working efficiency is seriously reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to provide a muddy water balance shield initiative screening quarrying device to solve current quarrying device and can not provide the technical problem of reliable screening effect for shield structure muddy water circulation system.
In order to solve the technical problem, the utility model adopts the following technical scheme:
the active screening and quarrying device for the slurry balance shield comprises a screening and stirring cylinder, a circulating pipeline and a quarrying box, wherein the screening and stirring cylinder comprises two external cylinders and a rotatable grid cylinder which are coaxially arranged; the grid barrel is provided with a rotating shaft, a spiral conveying mechanism is fixedly arranged inside the grid barrel, the rotating shaft is fixedly connected with the grid barrel so as to realize that the rotating shaft drives the spiral conveying mechanism of the grid barrel to do self-rotating motion, a circulating pipeline communicated with the grid barrel is correspondingly arranged below the grid barrel, a pulp outlet pipeline and a scouring pipeline are respectively arranged at the left end and the right end of the circulating pipeline, the upper ends of the pulp outlet pipeline and the scouring pipeline are fixedly connected with the outer barrel, a quarrying box is fixedly arranged below the circulating pipeline, the mouth end of the pulp outlet pipeline is communicated with the grid barrel.
Preferably, at the mouth end of the flushing pipeline, the grid cylinder is provided with a slurry inlet pipeline communicated with the grid cylinder, so that the slurry inlet pipeline is communicated with the slurry outlet pipeline through the grid cylinder and the circulating pipeline.
Preferably, the slurry inlet pipeline opening end is provided with a cover plate on the rotating shaft, so that the rotating shaft is protected, and the service life of the rotating shaft is prolonged.
Preferably, screw conveying mechanism is the spiral muscle, and spiral muscle conveying efficiency is high, and self intensity is big, long service life, and leaves the hole that supplies big stone to pass through in the centre.
Preferably, three or more groups of support assemblies are fixedly arranged between the grid cylinder and the rotating shaft, each support assembly comprises two support rods which are arranged in an up-and-down symmetrical mode, and the support assemblies are circumferentially distributed in the grid cylinder in a 30-degree crossed staggered mode, so that the overall strength of the grid cylinder is improved.
Preferably, the bracing piece with between the pivot the bracing piece with all be provided with the strengthening rib between the grid barrel, the strengthening rib includes two and bilateral symmetry settings for the supportable intensity increase of bracing piece.
Preferably, the outer circumferential surface of the grating cylinder and the inner circumferential surface of the outer cylinder are both provided with wear-resistant layers, the outer circumferential surface of the grating cylinder and the inner circumferential surface of the outer cylinder are subjected to a large friction force, and the wear-resistant layers arranged on the surfaces of the grating cylinder and the inner circumferential surface of the outer cylinder can prolong the service life of the grating cylinder.
Preferably, a cleaning port is formed in the side face of the quarrying box, a sealing cover plate is arranged at the cleaning port, and the sealing cover plate is fixed with the quarrying box through bolts. The setting of clearance mouth is convenient for clear up the inside stone of quarrying case.
Preferably, the quarrying box is internally provided with a two-layer structure and a slag chute. Make the stone obtain an initial speed when getting into quarrying case, can evenly distributed in quarrying incasement portion, avoid appearing the stone and pile up the condition of blocking up in the import.
Compared with the prior art, the utility model has the beneficial technical effects of: compact structure, the manufacturing and installation of being convenient for, the autogyration of the grid barrel that inside was provided with the spiral muscle for big stone and little stone separation, little stone pass through grid admission runner pipe, and big stone is sent into the quarrying case by the spiral muscle, and to a great extent has reduced the clearance frequency of quarrying case, and then has improved tunnelling efficiency.
Drawings
FIG. 1 is a schematic diagram of a transverse section structure of a slurry shield active screening quarrying device.
FIG. 2 is a schematic view of a cross section structure in the direction from A to A of the slurry shield active screening quarrying device.
Fig. 3 is a left-side view structure schematic diagram of the slurry shield active screening quarrying device.
Fig. 4 is a schematic structural diagram of a main view of the slurry shield active screening quarrying device.
Fig. 5 is a schematic diagram of a right-view structure of the slurry shield active screening quarrying device.
In the above figures, 10 is an external cylinder, 20 is a grid cylinder, 21 is a slurry inlet pipeline, 22 is a spiral rib, 23 is a support rod, 24 is a reinforcing rib, 30 is a circulating pipeline, 31 is a scouring pipeline, 32 is a slurry outlet pipeline, 40 is a quarrying box, 41 is a sealing cover plate, 42 is a slag chute, 50 is a driving motor, 51 is a rotating shaft, and 52 is a cover plate.
Detailed Description
The following embodiments are only intended to illustrate the present invention in detail, and do not limit the scope of the present invention in any way.
The components and parts in the following examples are all conventional commercially available products unless otherwise specified.
Example 1: the active screening and quarrying device for the slurry balance shield comprises a screening and stirring cylinder, a circulating pipeline 30, a quarrying box 40 and a driving motor 50, wherein the screening and stirring cylinder comprises two outer cylinders 10 and a rotatable grid cylinder 20 which are coaxially arranged; grid barrel 20 is provided with pivot 51, and inside fixed inlays and has screw conveying mechanism, and screw conveying mechanism is spiral muscle 22, and spiral muscle 22 conveying efficiency is high, and self intensity is big, long service life, and the centre leaves the hole that supplies big stone to pass through, and pivot 51 is connected with driving motor 50, and with grid barrel 20 welded fastening together, realizes driving motor drive pivot and drives grid barrel screw conveying mechanism and do from rotary motion. Be provided with the apron in the pivot, protect the pivot, prolong the life of pivot, still be provided with the pivot mount in the pivot, be provided with antifriction bearing between pivot and the pivot mount. The outer circumference of the grid cylinder and the inner circumference of the external cylinder are both provided with the wear-resistant layers, the outer circumference of the grid cylinder and the inner circumference of the external cylinder are relatively large in friction force, and the wear-resistant layers arranged on the surface of the grid cylinder can prolong the service life of the grid cylinder.
Three groups of supporting components are fixedly welded between the grid cylinder body and the rotating shaft and comprise two supporting rods which are arranged in an up-and-down symmetrical mode, and the supporting components are circumferentially distributed inside the grid cylinder body in a 30-degree crossed and staggered mode, so that the overall strength of the grid cylinder is improved. Between bracing piece 23 and pivot 51, all weld between bracing piece 23 and the grid cylinder 20 has the strengthening rib 24, the strengthening rib 24 includes two and bilateral symmetry settings, make bracing piece 23 can support the intensity increase, the correspondence of grid barrel 20 below is provided with rather than the runner pipe 30 of intercommunication, both ends are provided with out thick liquid pipeline 32 respectively about runner pipe 30 and erode pipeline 31, it can be so that can not remain mud in the runner pipe 30 to erode pipeline 31, pipeline 31 mouth end is being erodeed, be provided with rather than the thick liquid pipeline 21 that advances of intercommunication on the grid barrel 20, make advance thick liquid pipeline 21 through grid barrel 20, runner pipe 30 and play thick liquid pipeline 32 intercommunication.
The upper ends of the slurry outlet pipeline 32 and the scouring pipeline 31 are both connected with the external cylinder 10 through bolts, a quarrying box 40 is fixedly arranged below the circulating pipeline 30, and the quarrying box 40 is communicated with the grid cylinder 20 at the end of the slurry outlet pipeline 32. The side of quarrying case 40 is provided with the clearance mouth, and the clearance mouth is provided with sealed apron 41, and sealed apron 41 is fixed with quarrying case 40 through the bolt, and the setting of clearance mouth is convenient for clear up the inside stone of quarrying case 40. The quarrying box 40 is internally provided with a two-layer structure and is provided with a slag chute 62. Make the stone obtain an initial speed when getting into quarrying case, can evenly distributed in quarrying incasement portion, avoid appearing the stone and pile up the condition of blocking up in the import.
Referring to fig. 1 to 5, the working process of the slurry shield active screening quarrying device is as follows: the slurry inlet pipeline 21 is connected with a main machine slurry discharge pipeline of the shield machine, the slurry outlet pipeline 32 is connected with a P2.1 slurry discharge pump of the shield machine and subsequent pipelines thereof, clay doped with gravel enters the grid cylinder 20 from the slurry inlet pipeline, the grid cylinder 20 rotates to drive the spiral ribs 22 to stir and separate the clay and the gravel, larger stones are isolated in the cylinder by the grid cylinder 20 and are conveyed to the stone-picking box 40 below the circulating pipeline 30 under the action of the spiral ribs 22, after the stone-picking box 40 is filled, the sealing cover plate 61 of a cleaning port is opened to clean the stone-picking box 40, smaller stones and slurry enter the circulating pipeline 30 below the grid cylinder 20 through the grid cylinder 20, and then are discharged into the P2.1 slurry discharge pump of the shield machine and subsequent pipelines thereof through the slurry outlet pipeline 32 connected with the circulating pipeline 30, and the continuous circulation of the slurry circulating system of the shield machine can be maintained; the utility model discloses a quarrying device's grid barrel 20 and set up the spiral muscle 22 in grid barrel 20 can carry out the size screening to the stone through autogyration, and the runner pipe 30 and the quarrying case 40 with the 20 intercommunication of grid barrel can be collected little stone and big stone respectively.
The present invention has been described in detail with reference to the accompanying drawings and embodiments, but those skilled in the art will understand that various specific parameters in the above embodiments can be changed without departing from the spirit of the present invention to form a plurality of specific embodiments, which are the common variation ranges of the present invention and will not be described in detail herein.
Claims (9)
1. A slurry balance shield active screening quarrying device comprises a screening stirring cylinder, a circulation pipeline and a quarrying box, and is characterized in that the screening stirring cylinder comprises two external cylinders and a rotatable grid cylinder which are coaxially arranged; the grid barrel is provided with a rotating shaft, a spiral conveying mechanism is fixedly arranged inside the grid barrel, the rotating shaft is fixedly connected with the grid barrel so as to realize that the rotating shaft drives the spiral conveying mechanism of the grid barrel to do self-rotating motion, a circulating pipeline communicated with the grid barrel is correspondingly arranged below the grid barrel, a pulp outlet pipeline and a scouring pipeline are respectively arranged at the left end and the right end of the circulating pipeline, the upper ends of the pulp outlet pipeline and the scouring pipeline are fixedly connected with the outer barrel, a quarrying box is fixedly arranged below the circulating pipeline, the mouth end of the pulp outlet pipeline is communicated with the grid barrel.
2. The device for actively screening and quarrying mud-water balance shield according to claim 1, wherein a grout inlet pipe communicated with the grate cylinder is arranged on the grate cylinder at the mouth end of the flushing pipe, and the grout inlet pipe is communicated with a grout outlet pipe through the grate cylinder and the circulating pipe.
3. The mud water balance shield active screening quarrying device of claim 2, wherein a cover plate is arranged on the rotating shaft at the mouth end of the slurry inlet pipeline.
4. The mud balance shield active screening quarrying device of claim 1, wherein the screw conveying mechanism is a screw rib.
5. The device for actively screening and quarrying mud-water balance shield according to claim 1, wherein three or more groups of support assemblies are fixedly arranged between the grid cylinder and the rotating shaft, each support assembly comprises two support rods which are arranged in an up-down symmetrical manner, and the support assemblies are uniformly distributed in the grid cylinder in a circumferential 30-degree crossed staggered manner.
6. The device for actively screening and quarrying mud-water balance shield according to claim 5, wherein two reinforcing ribs are arranged between the support rod and the rotating shaft and between the support rod and the grid cylinder, and the two reinforcing ribs are arranged symmetrically left and right.
7. The device for actively screening and quarrying mud water balance shield according to claim 1, wherein the outer circumferential surface of the grid cylinder and the inner circumferential surface of the outer cylinder are both provided with wear resistant layers.
8. The device for actively screening quarried stone in a slurry balance shield according to claim 1, wherein a cleaning port is arranged on the side surface of the quarrying box, a sealing cover plate is arranged on the cleaning port, and the sealing cover plate is fixed with the quarrying box through bolts.
9. The mud water balance shield active screening quarrying device of claim 1, wherein a two-layer structure is arranged inside the quarrying box, and a chute is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921469752.7U CN211027004U (en) | 2019-09-05 | 2019-09-05 | Slurry balance shield active screening quarrying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921469752.7U CN211027004U (en) | 2019-09-05 | 2019-09-05 | Slurry balance shield active screening quarrying device |
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| Publication Number | Publication Date |
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| CN211027004U true CN211027004U (en) | 2020-07-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921469752.7U Active CN211027004U (en) | 2019-09-05 | 2019-09-05 | Slurry balance shield active screening quarrying device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523614A (en) * | 2019-09-05 | 2019-12-03 | 中铁隧道局集团有限公司 | Slurry balance shield actively sieves quarrying apparatus |
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2019
- 2019-09-05 CN CN201921469752.7U patent/CN211027004U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110523614A (en) * | 2019-09-05 | 2019-12-03 | 中铁隧道局集团有限公司 | Slurry balance shield actively sieves quarrying apparatus |
| WO2021042832A1 (en) * | 2019-09-05 | 2021-03-11 | 中铁隧道局集团有限公司 | Active sorting muck-collecting device for slurry balancing shield |
| US11484912B2 (en) | 2019-09-05 | 2022-11-01 | China Railway Tunnel Group Co., Ltd. | Active sorting muck-collecting device for slurry balancing shield |
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