CN116906069B - Cutting system for preventing sludge blockage in slurry shield machine - Google Patents
Cutting system for preventing sludge blockage in slurry shield machine Download PDFInfo
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- CN116906069B CN116906069B CN202311183758.9A CN202311183758A CN116906069B CN 116906069 B CN116906069 B CN 116906069B CN 202311183758 A CN202311183758 A CN 202311183758A CN 116906069 B CN116906069 B CN 116906069B
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- 239000002002 slurry Substances 0.000 title claims abstract description 58
- 239000010802 sludge Substances 0.000 title claims abstract description 41
- 238000005520 cutting process Methods 0.000 title claims description 20
- 239000002893 slag Substances 0.000 claims abstract description 54
- 238000007599 discharging Methods 0.000 claims abstract description 30
- 230000011218 segmentation Effects 0.000 claims abstract description 21
- 238000000926 separation method Methods 0.000 claims abstract description 10
- 230000000903 blocking effect Effects 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 187
- 238000007789 sealing Methods 0.000 claims description 70
- 238000009434 installation Methods 0.000 claims description 11
- 230000005641 tunneling Effects 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 8
- 238000009825 accumulation Methods 0.000 abstract description 4
- 239000002689 soil Substances 0.000 description 11
- 238000010276 construction Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000003373 anti-fouling effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/13—Devices for removing or hauling away excavated material or spoil; Working or loading platforms using hydraulic or pneumatic conveying means
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a segmentation system for preventing sludge from blocking in a slurry shield machine, which is arranged in the slurry shield machine and comprises a intra-bin segmentation structure and an intra-tube segmentation structure, wherein the intra-bin segmentation structure is arranged in a dregs bin and is positioned at the lower part of the dregs bin, and the intra-tube segmentation structure is arranged in a dregs discharging tube. The separating structure in the slag bin disclosed by the invention is used for separating the muck deposited and agglomerated in the slag bin, so that the slag is prevented from being deposited at the bottom of the slag bin to block the whole slag bin, and the normal discharge of the slag is further influenced; the in-pipe division structure divides the sludge blocks entering the slag discharging pipe, so that the slag discharging pipe is prevented from being blocked by the large-size sludge blocks, and the phenomenon that the normal slag discharging operation is influenced due to the accumulation of the sludge blocks at corners and turning positions is avoided; the intra-bin separation structure and the intra-tube separation structure jointly act to realize the separation of the sludge, so that the problem of sludge blockage is effectively avoided, and the smooth deslagging in normal operation is ensured.
Description
Technical Field
The invention relates to the technical field of shield tunneling machine devices, in particular to a segmentation system for preventing sludge blockage in a slurry shield tunneling machine.
Background
The slurry shield machine is used as advanced large-scale professional equipment for tunneling, is widely used for tunnel engineering of urban rail transit, railways, highways, municipal administration, hydropower and the like, and has higher working efficiency and soil discharge quality aiming at the soil discharge and slag discharge of special stratum during tunneling.
At present, when slurry shield machine is under construction, construction faults are likely to occur when the slurry shield machine encounters a silt stratum. Firstly, in the construction tunneling process, because the injection of mud, the dregs in the dregs bin can become mud blocks, and the dregs hole outside the dregs bin is frequently blocked, so that the dregs outside the dregs bin cannot be discharged outwards normally, and the subsequent operation can be performed only by frequently opening the dregs bin for cleaning. Secondly, the dregs need be discharged outside after entering the collecting box, because the diameter of the deslagging main pipeline of the slurry shield machine is larger, the stones and the silt blocks entering the collecting box along with the deslagging main pipeline are larger, but the inner isolation net arranged inside the collecting box can isolate the stones and the silt blocks with large size in the collecting box, when the stones and the silt blocks are full of the collecting box, the machine is stopped for cleaning, and because the stones and the silt blocks are easy to be blocked or are deposited at the corner or a certain position away from the deslagging pump, the concrete blocking position cannot be determined, the collecting box is not only required to be cleaned, and the deslagging pipe is required to be overhauled integrally, so that the overhaul operation intensity and duration are further increased. The open-bin repair of the dregs bin and the collecting box is time-consuming and labor-consuming operation, so that the cost is increased due to the increase of huge cost, and the construction progress is slowly dragged and the construction period is prolonged. The present invention provides a segmentation system for preventing sludge blockage in a slurry shield machine, which solves the above problems.
Disclosure of Invention
The invention provides a segmentation system for preventing sludge from blocking in a slurry shield machine, which segments large-size sludge blocks in a slag soil bin and a slag discharge pipe and avoids the influence of the sludge blocks on construction progress.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the cutting system for preventing the sludge from blocking in the slurry shield machine is arranged in the slurry shield machine and comprises an in-bin cutting structure and an in-tube cutting structure, wherein the in-bin cutting structure is arranged in a dregs bin and is positioned at the lower part of the dregs bin, and the in-tube cutting structure is arranged in a dregs discharging pipe;
the automatic cutting device is characterized in that the in-bin separation structure is movably arranged in the slurry pipe and comprises a first water knife, a sealing connection structure, a locking structure and an auxiliary structure, wherein the sealing connection structure is arranged on the slurry pipe, the first water knife is connected with the slurry pipe through the sealing connection structure, the front part of the first water knife is positioned in the slurry pipe, the locking structure is arranged on the first water knife and is connected with the sealing connection structure, and the auxiliary structure is arranged at the tail end of the first water knife.
Further, the first water sword includes water cutter head and water pipe, the water cutter head is located the front end of water pipe, seal connection structure includes fixed valve, sealing body and seal structure, the fixed valve is established on the mud pipe, the sealing body is established on the fixed valve, the water pipe is established in the sealing body, seal structure establishes in the sealing body, is located between water pipe and the sealing body.
Further, the locking structure comprises a fixing seat, a lock rod and a clamping ring, wherein the fixing seat is arranged on the first water knife, the lock rod is movably connected to the fixing seat, and the clamping ring is arranged on the lock rod;
when the water knife is retracted and stored, the lock rod is in a locking state, is clamped on the first water knife and is contacted and clamped with the sealing connection structure.
Further, the in-pipe splitting structure is arranged in the slag discharging pipe in groups and comprises a second water knife, a mounting pipe and an auxiliary structure, wherein the mounting pipe is arranged on the slag discharging pipe, the second water knife is arranged in the mounting pipe, and the auxiliary structure is arranged at the tail end of the second water knife.
Further, the second water sword includes water tool bit, water pipe, retaining member and connecting piece, the water pipe is established in the installation tube, the retaining member is established on the water pipe to connect at the terminal of installation tube, the connecting piece is established at the water pipe terminal, and is connected with auxiliary structure.
Further, the installation pipes are obliquely arranged and are inclined towards the deslagging direction of the deslagging pipes, the included angle is 30-50 degrees, and the in-pipe splitting structures of each group face the axial direction of the deslagging pipes.
Further, the water pipe is provided with a distance adjusting protrusion, and a sealing ring is arranged between the locking piece and the mounting pipe.
Further, the auxiliary structure comprises a water supply pipe and a control valve, and the water supply pipe is connected with the water pipe through the control valve.
Further, the water outlet direction of the water cutter head of the first water cutter is perpendicular to the axis of the shield tunneling machine.
Further, the sealing structure comprises a sealing ring, an extrusion seal and a locking cap, wherein the sealing ring is arranged between the water pipe and the sealing body at intervals, the locking cap is arranged on the water pipe and is connected with the tail end of the sealing body, and the extrusion seal is arranged between the locking cap and the sealing body.
The invention has the following beneficial effects:
the in-bin separation structure is used for separating the muck deposited and agglomerated in the muck bin, so that the muck is prevented from being deposited at the bottom of the muck bin to block the whole muck bin, and the normal discharge of muck is further influenced; the in-pipe division structure divides the sludge blocks entering the slag discharging pipe, so that the slag discharging pipe is prevented from being blocked by the large-size sludge blocks, and the phenomenon that the normal slag discharging operation is influenced due to the accumulation of the sludge blocks at corners and turning positions is avoided;
the in-bin splitting structure and the in-pipe splitting structure jointly act to realize the splitting of the sludge, and the in-bin splitting structure has the advantages of being good in splitting effect and anti-fouling effect, effectively avoids the problem of sludge blockage, ensures smooth deslagging in normal operation, effectively promotes operation duration, reduces maintenance frequency, and further reduces cost.
Drawings
FIG. 1 is a schematic view of the front view of the in-bin splitting structure arrangement of the present invention;
FIG. 2 is a schematic diagram of the overall structure of the present invention;
FIG. 3 is a schematic view showing the arrangement state of the intra-bin splitting structure according to the present invention;
FIG. 4 is a schematic view of the overall structure of the in-bin splitting structure of the present invention;
FIG. 5 is a schematic view of a first water knife set position according to the present invention;
FIG. 6 is a schematic view of a first water jet blade according to the present invention;
FIG. 7 is a schematic view of a seal structure according to the present invention;
FIG. 8 is a schematic front view of a locking structure of the present invention;
FIG. 9 is a schematic top view of the locking structure of the present invention;
FIG. 10 is a schematic diagram showing the connection of the first water jet blade to the auxiliary structure according to the present invention;
FIG. 11 is a schematic side view of an in-tube splitting structure of the present invention;
FIG. 12 is a schematic front view of the in-tube splitting structure of the present invention;
fig. 13 is a schematic view showing an exploded view of the in-tube splitting structure of the present invention.
Reference numerals: 100-in-bin separation structure, 200-in-tube separation structure, 1-first water knife, 11-water knife head, 12-water pipe, 13-contraction piece, 14-connecting piece, 2-sealing connecting structure, 21-fixed valve, 22-sealing body, 3-locking structure, 31-fixed seat, 32-lock rod, 33-snap ring, 4-auxiliary structure, 5-second water knife and 6-installation pipe.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
In the description of the present invention, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
As shown in fig. 1 and 2, a segmentation system for preventing sludge from blocking in a slurry shield machine is arranged in the slurry shield machine and comprises a in-bin segmentation structure 100 and an in-tube segmentation structure 200, wherein the in-bin segmentation structure 100 is arranged in a dregs bin and is positioned at the lower part of the dregs bin, and the in-tube segmentation structure 200 is arranged in a dregs discharging tube.
According to the invention, the water knife cutting device is arranged in the residue soil bin and the residue discharge pipe of the slurry shield machine to cut the deposited or piled-up silt, so that after the silt is cut into small blocks, the silt is prevented from being piled up in the residue soil bin or blocked in the residue discharge pipe, and the normal operation of the shield machine is prevented from being influenced. When slag is discharged, the slag with high density can be accumulated at the bottom of the slag bin, and the slag can form a large-sized sludge block which cannot be discharged through a slag discharge pipe due to long-time accumulation. The first water knife 1 in the in-bin splitting structure 100 is arranged in a slurry pipe, can extend into a slag soil bin and can rotate to split slag soil deposited at the bottom of the slag soil bin, so that the slag soil is small and conveniently enters the slag discharge pipe. The slag discharging pipe has the advantages that the slag discharging pipe is large in size, corners and the like, slag soil entering the slag discharging pipe can be deposited again, and the collection box can be affected by massive sludge. The in-pipe division structure 200 is arranged in the slag discharging pipe and divides the slag in the slag discharging pipe so that the slag cannot form large-scale sludge and the smoothness of slag discharging is ensured.
As shown in fig. 1, 2, 3, 11 and 12, in the concrete embodiment of the invention, 24 slurry pipes are arranged in a muck bin of the slurry shield machine at intervals along the circumferential direction, the slag pipes are connected to the bottom of the muck bin and positioned between two bottommost slurry pipes, and in order to cut the sludge accumulated at the bottom of the muck bin, a in-bin splitting structure 100 is arranged in the bottommost two slurry pipes and is used for splitting the sludge at the bottom of the muck bin, and as the outlets of the slurry pipes are positioned on the muck bin wall, the sludge in the muck bin cannot be effectively cut, so that the in-bin splitting structure 100 capable of stretching and rotating is arranged, the sludge in a deeper distance can be split into small blocks, and the sludge accumulated at the bottom of the muck bin can be split by rotating to realize the split of the sludge in a larger three-dimensional space. The slag discharging pipe adopts three branch pipes to discharge slag from the slag soil bin, and then the three branch pipes are combined into one main pipe to send slag. Therefore, the in-pipe division structure 200 is arranged in the main pipe of the slag discharging pipe to divide the slag in the slag discharging pipe, so that large-block siltation is avoided. The in-pipe division structure 200 adopts a triplet, the in-pipe division structure 200 positioned in the middle is arranged towards the axis of the slag discharging pipe, the in-pipe division structures 200 positioned at two sides are respectively arranged in an inclined way towards the middle, and the three in-pipe division structures 200 can divide the in-pipe into three parts so as to avoid the secondary accumulation of slag.
As shown in fig. 1, 2, 3 and 4, the in-bin separation structure 100 is movably arranged in the slurry pipe and comprises a first water knife 1, a sealing connection structure 2, a locking structure 3 and an auxiliary structure 4, wherein the sealing connection structure 2 is arranged on the slurry pipe, the first water knife 1 is connected with the slurry pipe through the sealing connection structure 2, the front part of the first water knife 1 is positioned in the slurry pipe, the locking structure 3 is arranged on the first water knife 1 and is connected with the sealing connection structure 2, and the auxiliary structure 4 is arranged at the tail end of the first water knife 1.
The principle of action of the in-bin splitting structure 100 is as follows: the sealed connection structure 2 is arranged on the slurry pipe and is coaxially arranged with the slurry pipe, the first water knife 1 is movably arranged in the sealed connection structure 2, the front part of the first water knife 1 is arranged in the slurry pipe and is coaxially arranged with the slurry pipe, the first water knife 1 can stretch out and draw back along the slurry pipe and rotate around the axis of the first water knife 1, when the cutting operation is needed, the first water knife 1 is pushed forwards to stretch into the muck bin, the water knife is sprayed to cut apart the sludge, the water outlet of the first water knife 1 is perpendicular to the axis of the shield machine and can rotate around the axis, therefore, when the first water knife is continuously rotated, the first water knife can form 360-degree three-dimensional cylindrical cutting in a range, the sludge in a larger space at the bottom of the muck bin can be cut apart, and the two in-bin inner cutting structures 100 realize comprehensive cutting of the bottom of the muck bin, so that the muck is prevented from being blocked. When the first water jet cutter 1 does not perform cutting operation, the first water jet cutter 1 needs to retract into the slurry pipe, the normal operation of the muck bin is avoided, and because the shield machine normally operates, the whole structure vibrates greatly, the first water jet cutter 1 can shift due to vibration and then extend out of the muck bin to be easy to break down and damage, and therefore the locking structure 3 is arranged to lock the first water jet cutter 1, so that the first water jet cutter is stable in the shield machine operation process. The auxiliary structure 4 connected to the first water knife 1 comprises means for supplying water and controlling pressure.
As shown in fig. 5 and 6, further, the first water knife 1 includes a water knife head 11 and a water pipe 12, the water knife head 11 is located at the front end of the water pipe 12, the water pipe is a stainless steel pipe, the sealing connection structure 2 is used as a first mounting structure returning to 1, the first water knife 1 is stably mounted in a slurry pipe, and is enabled to achieve the function of telescopic rotation, meanwhile, the sealing connection structure 2 ensures the sealing effect between the first water knife 1 and the slurry pipe, the sealing connection structure 2 includes a fixed valve 21, a sealing body 22 and a sealing structure, the fixed valve 21 is arranged on the slurry pipe and is a 2 ball valve on the slurry pipe, the sealing body 22 is arranged on the fixed valve 21, the water pipe 12 is arranged in the sealing body 22, and the sealing structure is arranged in the sealing body 22 and is located between the water pipe 12 and the sealing body 22.
As shown in fig. 4, 8 and 9, further, the locking structure 3 includes a fixing seat 31, a lock rod 32 and a snap ring 33, the fixing seat 31 is disposed on the first water jet blade 1, the lock rod 32 is movably connected to the fixing seat 31, and the snap ring 33 is disposed on the lock rod 32.
When the first water knife 1 is in extension segmentation, the locking structure 3 is opened upwards, so that the extension and rotation actions of the first water knife 1 are not influenced; when the first water knife 1 is retracted, the locking structure 3 is put down and clamped on a water pipe of the first water knife 1, the outer end of the locking structure 3 is propped against the sealing connection structure 2, and the forward movement of the first water knife 1 is limited to extend.
When the water jet blade is in the extending and dividing state, the lock rod 32 is in an opening state and is in a separating state with the first water jet blade 1, and when the water jet blade is retracted and stored, the lock rod 32 is in a locking state, is clamped on the first water jet blade 1 and is in contact and clamping connection with the sealing connection structure 2.
As shown in fig. 8 and 9, preferably, the fixing seat 31 is an annular seat, a connecting lug plate is arranged on the annular seat, the fixing seat 31 is sleeved on a water pipe of the first water knife 1, the lock rod 32 is movably connected with the fixing seat 31 through a pin shaft, the two clamping rings 33 are arranged on the lock rod 32, the two clamping rings 33 are clamped on the water pipe of the first water knife 1 when the lock rod 32 is required to be locked by semi-annular clamping buckles, at the moment, the lock rod 32 is parallel to the water pipe of the first water knife 1 and forms an integral structure, the outer end of the lock rod 32 is clamped on the sealing connection structure 2, and then the first water knife 1 is connected with the sealing connection structure 2 integrally, so that the first water knife 1 is prevented from stretching out due to vibration.
As shown in fig. 4, 8 and 9, the inner end of the locking structure 3 is fixedly connected to the water pipe 12, is located on the same plane with the water pipe 2, and rotates around the connection position, when the first water knife 1 needs to stretch out and divide, the locking structure 3 is rotated upwards and outwards to separate from the first water knife 1, when the locking is needed, the locking structure 3 is rotated downwards to clamp the locking structure on the water pipe 2, and the outer end is propped against the sealing connection structure 2, so that the first water knife 1 is prevented from displacing due to vibration and stretching out of a slurry pipe.
As shown in fig. 7, further, the sealing structure includes a sealing ring, an extrusion seal and a locking cap, where the sealing ring is disposed between the water pipe 12 and the sealing body 22 at intervals, and the locking cap is disposed on the water pipe 12 and connected to the end of the sealing body 22, and the extrusion seal is disposed between the locking cap and the sealing body 22, seals by the extrusion seal, and adjusts the extrusion degree according to the sealing effect of the sealing ring, and adjusts the sealing effect.
Preferably, a sealing gasket is arranged between the water cutter head 11 of the first water cutter 1 and the water pipe 12.
As shown in fig. 11 and 12, further, the in-pipe splitting structure 200 is arranged in a slag discharging pipe in a triplet manner; the in-pipe splitting structure 200 comprises a second water knife 5, a mounting pipe 6 and an auxiliary structure 4, wherein the mounting pipe 6 is arranged on the slag discharging pipe and serves as a mounting base of the second water knife 5, the second water knife 5 is arranged in the mounting pipe 6, and the auxiliary structure 4 is arranged at the tail end of the second water knife 5 and supplies water for the second water knife 5 and controls a switch.
As shown in fig. 13, further, the second water knife 5 includes a water knife head 11, a water pipe 12, a locking member 13 and a connecting member 14, the water pipe 12 is disposed in the mounting pipe 6, the locking member 13 is disposed on the water pipe 12 and is connected to the end of the mounting pipe 6, the water pipe 12 of the second water knife 5 is fixed in the mounting pipe 6, and the connecting member 14 is disposed at the end of the water pipe 12 and is connected to the auxiliary structure 4 as a connection structure between the water pipe 12 and the auxiliary structure 4.
As shown in fig. 11 and 12, further, each group of three in-pipe division structures 200 is obliquely arranged in the axial direction, and is inclined towards the deslagging direction of the deslagging pipe, the included angle is 40 degrees, each group of three in-pipe division structures 200 is radially oriented towards the axial direction of the deslagging pipe, the water outlets of the middle in-pipe division structures 200 are oriented towards the axial direction, the water outlets of the in-pipe division structures 200 positioned at two sides are inclined inwards, the included angle between the water outlets and the horizontal diameter is 103 degrees, sludge in the deslagging pipe is divided into small blocks, and water brought in by a water knife is prevented from agglomerating and silting again.
Preferably, the locking member 13 is a locking nut, and the connecting member 14 is a connecting nut.
Preferably, the slag discharging pipe is provided with a mounting hole, and the mounting pipe 6 is welded in the mounting hole of the slag discharging pipe.
Further, a distance adjusting protrusion is arranged on the water pipe 12 and used for adjusting the installation depth of the second water knife 5, and a sealing ring is arranged between the locking piece 13 and the installation pipe 6.
Further, the auxiliary structure 4 includes a water supply pipe and a control valve, and the water supply pipe is connected with the water pipe 12 through the control valve.
Preferably, the water supply pipe of the first water knife 1 is a rubber hose with steel wires, the water supply pipe of the second water knife is a steel pipe, and the control valve is a ball valve for controlling the pressure flow of the switch.
As shown in fig. 5, 6 and 13, further, the water outlet direction of the water cutter head 11 of the first water cutter 1 is perpendicular to the axis of the shield tunneling machine, an included angle exists between the water outlet direction of the water cutter head 11 of the first water cutter 1 and the axis of the water pipe 12 of the first water cutter 1, and the water outlet direction of the water cutter head 11 of the second water cutter 1 is coaxial with the axis direction of the mounting pipe 6.
The specific implementation method of the invention is as follows:
firstly, determining water supply pressure according to the hardness of a sludge block, determining the aperture of a water knife and the specification of a water supply pipe according to the water supply pressure, and then manufacturing accessories;
secondly, dredging a slurry pipe in which a cutting device is required to be installed in the slurry shield machine, determining an installation position on a slag discharging main pipe, wherein the installation position is required to be as far away from a collecting box as possible so as to facilitate the cut sludge to be digested and reduced and then enter the collecting box;
thirdly, assembling accessories, firstly assembling and connecting the in-bin splitting structure 100, then installing the in-bin splitting structure on a fixed valve 21 of a slurry pipe, connecting the first water jet knife 1 with the auxiliary structure 4, and debugging telescopic rotation actions; assembling the in-pipe splitting structure 200, fixing the mounting pipe 6 on the slag discharging main pipe, mounting the rest structures, connecting with the auxiliary structure 4, and finally performing water supply debugging;
fourthly, water supply segmentation operation is carried out during tunneling operation of the slurry shield machine, so that excessive clear water is prevented from influencing the slurry concentration;
fifthly, when the in-bin division structure 100 needs to perform the division operation of the shield machine, but the muck bin stops rolling, muck with larger silting density is deposited at the lower part, and the in-bin division structure 100 can conveniently perform the division operation after extending out.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Claims (7)
1. The cutting system for preventing the sludge from blocking in the slurry shield machine is arranged in the slurry shield machine and is characterized by comprising an in-bin cutting structure (100) and an in-tube cutting structure (200), wherein the in-bin cutting structure (100) is arranged in a dregs bin and is positioned at the lower part of the dregs bin, and the in-tube cutting structure (200) is arranged in a dregs discharging pipe;
the in-bin separation structure (100) is movably arranged in the slurry pipe and comprises a first water knife (1), a sealing connection structure (2), a locking structure (3) and an auxiliary structure (4), wherein the sealing connection structure (2) is arranged on the slurry pipe, the first water knife (1) is connected with the slurry pipe through the sealing connection structure (2), the front part of the first water knife (1) is positioned in the mud pipe, the locking structure (3) is arranged on the first water knife (1) and is connected with the sealing connection structure (2), and the auxiliary structure (4) is arranged at the tail end of the first water knife (1);
the first water knife (1) comprises a water knife head (11) and a water pipe (12), wherein the water knife head (11) is positioned at the front end of the water pipe (12), the sealing connection structure (2) comprises a fixed valve (21), a sealing body (22) and a sealing structure, the fixed valve (21) is arranged on a slurry pipe, the sealing body (22) is arranged on the fixed valve (21), the water pipe (12) is arranged in the sealing body (22), and the sealing structure is arranged in the sealing body (22) and is positioned between the water pipe (12) and the sealing body (22);
the locking structure (3) comprises a fixed seat (31), a lock rod (32) and a clamping ring (33), wherein the fixed seat (31) is arranged on the first water knife (1), the lock rod (32) is movably connected to the fixed seat (31), and the clamping ring (33) is arranged on the lock rod (32);
when the water knife is in extension and division, the lock rod (32) is in an open state, is in a separation state with the first water knife (1), and when the water knife is retracted and stored, the lock rod (32) is in a locking state, is clamped on the first water knife (1) and is in contact and clamped with the sealing connection structure (2);
the in-pipe splitting structure (200) is arranged in a slag discharging pipe in groups and comprises a second water knife (5), a mounting pipe (6) and an auxiliary structure (4), wherein the mounting pipe (6) is arranged on the slag discharging pipe, the second water knife (5) is arranged in the mounting pipe (6), and the auxiliary structure (4) is arranged at the tail end of the second water knife (5).
2. The segmentation system for preventing sludge blockage in a slurry shield machine according to claim 1, wherein: the second water sword (5) include water tool bit (11), water pipe (12), retaining member (13) and connecting piece (14), water pipe (12) are established in installation pipe (6), retaining member (13) are established on water pipe (12) to connect the end at installation pipe (6), connecting piece (14) are established at water pipe (12) end, and are connected with auxiliary structure (4).
3. The segmentation system for preventing sludge blockage in a slurry shield machine according to claim 1, wherein: the installation pipe (6) is obliquely arranged and is inclined towards the deslagging direction of the deslagging pipe, the included angle is 30-50 degrees, and the in-pipe splitting structures (200) of each group face the axial direction of the deslagging pipe.
4. The segmentation system for preventing sludge blockage in a slurry shield machine according to claim 2, wherein: the water pipe (12) is provided with a distance adjusting bulge, and a sealing ring is arranged between the locking piece (13) and the mounting pipe (6).
5. The segmentation system for preventing sludge blockage in a slurry shield machine according to claim 1, wherein: the auxiliary structure (4) comprises a water supply pipe and a control valve, and the water supply pipe is connected with the water pipe (12) through the control valve.
6. The segmentation system for preventing sludge blockage in a slurry shield machine according to claim 1, wherein: the water outlet direction of the water cutter head (11) of the first water cutter (1) is perpendicular to the axis of the shield tunneling machine.
7. The segmentation system for preventing sludge blockage in a slurry shield machine according to claim 1, wherein: the sealing structure comprises a sealing ring, an extrusion seal and a locking cap, wherein the sealing ring is arranged between the water pipe (12) and the sealing body (22) at intervals, the locking cap is arranged on the water pipe (12) and is connected with the tail end of the sealing body (22), and the extrusion seal is arranged between the locking cap and the sealing body (22).
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| US5203099A (en) * | 1992-04-03 | 1993-04-20 | Commodities, Inc. | Self-powered, submersible dredge apparatus |
| JPH08303188A (en) * | 1995-05-02 | 1996-11-19 | Shin Gijutsu Koei Kk | Shield machine |
| JP2000008773A (en) * | 1998-06-22 | 2000-01-11 | Fuso Giken:Kk | Method for propelling muddy water pressurizing buried pipe |
| CN107091098A (en) * | 2017-06-30 | 2017-08-25 | 中铁局集团有限公司 | A kind of driving method of Suporting structure in high viscosity mud stone |
| CN207212341U (en) * | 2017-06-30 | 2018-04-10 | 中铁一局集团有限公司 | Suporting structure driving uses cutterhead flushing system in a kind of high viscosity mud stone |
| CN112943271A (en) * | 2021-03-19 | 2021-06-11 | 中铁三局集团第五工程有限公司 | Device and method for preventing gushing and improving shield tunneling efficiency of water-rich stratum |
| CN215429584U (en) * | 2021-06-18 | 2022-01-07 | 中交隧道工程局有限公司 | Shield tunnel composite gravel layer sludge treatment equipment |
| CN115726806A (en) * | 2022-12-07 | 2023-03-03 | 中交天和机械设备制造有限公司 | Slag discharging system of slurry TBM dual-mode shield tunneling machine and switching slag discharging method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| SU1293124A1 (en) * | 1985-04-22 | 1987-02-28 | Конструкторское Бюро По Разработке Спецоборудования Для Очистных Сооружений Водопровода И Канализации "Водмаштехника" | Silt removing arrangement |
| US5203099A (en) * | 1992-04-03 | 1993-04-20 | Commodities, Inc. | Self-powered, submersible dredge apparatus |
| JPH08303188A (en) * | 1995-05-02 | 1996-11-19 | Shin Gijutsu Koei Kk | Shield machine |
| JP2000008773A (en) * | 1998-06-22 | 2000-01-11 | Fuso Giken:Kk | Method for propelling muddy water pressurizing buried pipe |
| CN107091098A (en) * | 2017-06-30 | 2017-08-25 | 中铁局集团有限公司 | A kind of driving method of Suporting structure in high viscosity mud stone |
| CN207212341U (en) * | 2017-06-30 | 2018-04-10 | 中铁一局集团有限公司 | Suporting structure driving uses cutterhead flushing system in a kind of high viscosity mud stone |
| CN112943271A (en) * | 2021-03-19 | 2021-06-11 | 中铁三局集团第五工程有限公司 | Device and method for preventing gushing and improving shield tunneling efficiency of water-rich stratum |
| CN215429584U (en) * | 2021-06-18 | 2022-01-07 | 中交隧道工程局有限公司 | Shield tunnel composite gravel layer sludge treatment equipment |
| CN115726806A (en) * | 2022-12-07 | 2023-03-03 | 中交天和机械设备制造有限公司 | Slag discharging system of slurry TBM dual-mode shield tunneling machine and switching slag discharging method thereof |
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| CN116906069A (en) | 2023-10-20 |
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