CN108952746A - Anti-spouting device, application method and screw conveyor - Google Patents
Anti-spouting device, application method and screw conveyor Download PDFInfo
- Publication number
- CN108952746A CN108952746A CN201810832791.2A CN201810832791A CN108952746A CN 108952746 A CN108952746 A CN 108952746A CN 201810832791 A CN201810832791 A CN 201810832791A CN 108952746 A CN108952746 A CN 108952746A
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- Prior art keywords
- dregs
- screw conveyor
- conveyance conduit
- gate valve
- gas source
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000002893 slag Substances 0.000 claims abstract description 23
- 230000005641 tunneling Effects 0.000 claims abstract description 4
- 239000002689 soil Substances 0.000 claims description 104
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 230000000903 blocking effect Effects 0.000 claims description 5
- 239000004575 stone Substances 0.000 claims description 5
- 238000003780 insertion Methods 0.000 claims 1
- 230000037431 insertion Effects 0.000 claims 1
- 230000009467 reduction Effects 0.000 abstract description 4
- 239000002245 particle Substances 0.000 description 9
- 230000008674 spewing Effects 0.000 description 5
- 206010020852 Hypertonia Diseases 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 3
- 230000002776 aggregation Effects 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 229910000278 bentonite Inorganic materials 0.000 description 1
- 239000000440 bentonite Substances 0.000 description 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000001360 synchronised effect Effects 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
- E21D9/124—Helical conveying means therefor
-
- 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
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- 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 kind of anti-spouting devices, application method and screw conveyor, anti-spouting device is gushed for screw conveyor when preventing balancing earth-pressure shielding machine from tunneling, the dregs conveyance conduit being connect including the output end with screw conveyor, it is installed on dregs conveyance conduit for controlling the proximal end gate valve that screw conveyor discharges dregs into dregs conveyance conduit, the distal end gate valve of the gas source access infrastructure for being connect with gas source generator that is installed on dregs conveyance conduit and the outbound course for being installed on dregs conveyance conduit and being located at gas source access infrastructure, gas source generator conveys compressed gas in dregs conveyance conduit towards the direction of distal end gate valve by gas source access infrastructure, it is delivered in the slag device of shield machine with providing dregs conveying power for dregs.Anti-spouting device of the invention is discharged by the way that a part to be located to the dregs of output end of screw conveyor, makes the pressure reduction of the dregs of the output end of screw conveyor to prevent to gush.
Description
Technical field
The present invention relates to constructing tunnel equipment technology fields, particularly, are related to a kind of for preventing balancing earth-pressure shielding machine
The anti-spouting device and its application method that screw conveyor is gushed when driving, in addition, further relating to a kind of screw conveyor.
Background technique
Balancing earth-pressure shielding machine casting is simple, highly reliable, strong applicability, is widely used in city underground rail traffic
Tunnel Engineering, mainly by shield body, cutterhead, drive system, helical conveyer system, hydraulic propelling system, soil pressure storehouse, pipe sheet assembling
Machine, synchronous grouting system and tail sealing device of shield etc. are constituted.Wherein screw conveyor is balancing earth-pressure shielding machine critical component
One of, it is the soil-discharging device of shield machine, is made of cylinder, driving device, helical axis, discharge gate.
When shield construction, geological conditions, hydrologic regime, boring parameter are the influence factors of generation of gushing.Shield machine exists
When the stratum driving that the access of the water rich stratas underground water such as sandy gravel does not block, if the additives such as foaming agent, bentonite use
Improper, sediment improvement is undesirable, fails effectively to change dregs permeability, in the case where water flow is big or hydraulic gradient is big,
Spewing phenomenon easily occurs.Shield machine is when the middle weathering that crevice water is developed or micro- weathered stratum are tunneled, if shield machine rear
Water route is unclosed, excavates in storehouse dregs when being difficult to improve due to the influence of flowing water, also spewing phenomenon frequent occurrence.The water of high pressure
After body passes through excavation storehouse and screw conveyor, pressure head does not successively decrease in place, and seepage flow entrainment soil particle is being transported to spiral
Conveyer ash gate exports in a flash, and since the belt conveyor storage end of opened downward is in passive state, seepage water is just
The dregs normally conveyed is driven to gush in the case where pressure reduces suddenly.The dregs of outer spray dislikes periphery working environment
Change, very big difficulty is brought to shield segment assembling etc., influences project progress.
Summary of the invention
The present invention provides a kind of anti-spouting device, application method and screw conveyors, to solve soil pressure in the prior art
The technical issues of screw conveyor is gushed when balance shield machine tunnels.
According to an aspect of the present invention, a kind of anti-spouting device is provided, when for preventing balancing earth-pressure shielding machine from tunneling
Screw conveyor is gushed, and anti-spouting device includes the dregs conveyance conduit connecting with the output end of screw conveyor, installation
In dregs conveyance conduit, on for control screw conveyor, to dregs conveyance conduit, it is interior discharge dregs proximal end gate valve, installation
In the gas source access infrastructure on dregs conveyance conduit for connecting with gas source generator and it is installed on dregs conveyance conduit
The distal end gate valve of the outbound course of gas source access infrastructure is gone up and is located at, gas source generator passes through gas source access infrastructure towards distal end lock
The direction of valve conveys compressed gas in dregs conveyance conduit, is delivered to connecing for shield machine to provide dregs conveying power for dregs
In slag device.
Further, gas source access infrastructure is between proximal end gate valve and distal end gate valve, the pressure of gas source generator generation
Contracting gas accesses mechanism by gas source and is delivered in dregs conveyance conduit towards distal end gate valve direction.
Further, gas source access infrastructure includes access conduit and gas control valve, and the first end of access conduit is inserted into slag
It is bent in native conveyance conduit and towards distal end gate valve direction, gas control valve is installed in the second end of access conduit and for controlling
The amount for the compressed gas that gas source generator is conveyed into dregs conveyance conduit.
Further, proximal end gate valve is between gas source access infrastructure and distal end gate valve, the pressure of gas source generator generation
Contracting air passes through in gas source access infrastructure to dregs conveyance conduit and screw conveyor is pushed to be emitted into dregs conveyance conduit
Dregs is conveyed into slag device.
Further, the output end of proximal end gate valve is connect with dregs conveyance conduit, and the input terminal of proximal end gate valve passes through flange
It is connect with screw conveyor, and the junction of flange and screw conveyor is equipped with for stopping bulky grain stone to enter dregs conveying
Filter device in pipeline.
According to another aspect of the present invention, a kind of application method of anti-spouting device is also provided, using above-mentioned anti-dress of gushing
It sets, comprising the following steps: before opening discharge gate discharge dregs, detect the dregs pressure in the output end of screw conveyor
Power；When the soil pressure of soil pressure in the output end of screw conveyor is excessively high, gas source generator is opened and by dregs conveyance conduit
Interior conveying compressed gas opens proximal end gate valve after opening distal end gate valve again, thus by a part of dregs and water body discharge to reduce
Soil pressure of soil pressure in the output end of screw conveyor 2；When the soil pressure of soil pressure in the output end of screw conveyor is reduced to just
After normal range, closes proximal end gate valve and open discharge gate discharge dregs.
Further, when the junction of dregs conveyance conduit and screw conveyor blocks, gas source generator is opened, is closed
It closes distal end gate valve and opens proximal end gate valve, washed open the dregs at blocking by compressed gas.
Further, it opens discharge gate and discharges dregs, specifically includes the following steps: opening discharge gate discharge dregs simultaneously
Monitor the soil pressure of soil pressure in the output end of screw conveyor；When the soil pressure of soil pressure in the output end of screw conveyor is close to upper
It when limit value, opens gas source generator and conveys compressed gas into dregs conveyance conduit, opened again closely after opening distal end gate valve
End brake valve, thus by the soil pressure of soil pressure in the output end of a part of dregs and water body discharge to reduce screw conveyor；Work as spiral shell
After soil pressure of soil pressure in the output end of rotation conveyer is reduced to normal range (NR), proximal end gate valve is closed.
Further, it opens discharge gate and discharges dregs, specifically includes the following steps: opening discharge gate discharge dregs simultaneously
Monitor the soil pressure of soil pressure in the output end of screw conveyor；When the soil pressure of soil pressure in the output end of screw conveyor is more than upper
When limit value, arranges the dregs being discharged at gate and the row's of closing gate and open gas source generator and dregs is defeated immediately when gushing
It send and conveys compressed gas in pipeline, open proximal end gate valve again after opening distal end gate valve, so that a part of dregs and water body are discharged
The soil pressure of soil pressure in output end to reduce screw conveyor；When the soil pressure of soil pressure in the output end of screw conveyor reduces
To normal range (NR), closes proximal end gate valve and reopen discharge gate discharge dregs.
According to another aspect of the present invention, a kind of screw conveyor is also provided, it is defeated for dregs in the native storehouse by shield machine
It send into the slag device of shield machine to establish the balance in the pressure balance inside and outside native storehouse and native storehouse into soil amount and the amount of being unearthed, packet
Include above-mentioned anti-spouting device.
The invention has the following advantages:
Anti-spouting device of the invention adds dregs conveyance conduit for a part of position by the output end in screw conveyor
In screw conveyor output end dregs discharge, thus make the pressure reduction of the dregs of the output end of screw conveyor with
It gushs when dregs being prevented to be discharged；Screw conveyor is controlled to dregs by the proximal end gate valve being installed on dregs conveyance conduit
Dregs discharge amount in conveyance conduit is to control the pressure of the dregs of the output end of screw conveyor；It is defeated by being installed on dregs
Compressed gas is conveyed after sending the gas source access infrastructure on pipeline to connect with gas source generator into dregs conveyance conduit to ensure
Dregs is out of smooth in dregs conveyance conduit the slag device for being expelled to shield machine；When dregs conveyance conduit and screw conveyor
When junction blocks, the distal end gate valve by closing the outbound course positioned at gas source access infrastructure makes distal end gate valve to dregs
The junction of conveyance conduit and screw conveyor forms airtight passage and makes to fill in airtight passage by opening gas source access infrastructure
Full compressed gas, to be washed open the dregs for being jammed in the junction of dregs conveyance conduit and screw conveyor using compressed gas
To ensure the normal use of anti-spouting device.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to figure, the present invention is described in further detail.
Detailed description of the invention
The attached drawing constituted part of this application is used to provide further understanding of the present invention, schematic reality of the invention
It applies example and its explanation is used to explain the present invention, do not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the anti-spouting device of the preferred embodiment of the present invention.
Marginal data:
1, anti-spouting device；11, dregs conveyance conduit；12, proximal end gate valve；13, distal end gate valve；14, gas source access infrastructure；
2, screw conveyor；3, slag device.
Specific embodiment
The embodiment of the present invention is described in detail below in conjunction with attached drawing, but the present invention can be limited by following and
The multitude of different ways of covering is implemented.
Fig. 1 is the structural schematic diagram of the anti-spouting device of the preferred embodiment of the present invention.
As shown in Figure 1, the anti-spouting device of the present embodiment, screw conveyor when for preventing balancing earth-pressure shielding machine from tunneling
2 gush, and anti-spouting device includes the dregs conveyance conduit 11 connecting with the output end of screw conveyor 2, is installed on dregs
The proximal end gate valve 12 of dregs is discharged into dregs conveyance conduit 11, is installed on for controlling screw conveyor 2 on conveyance conduit 11
Gas source access infrastructure 14 for connecting with gas source generator on dregs conveyance conduit 11 and it is installed on dregs delivery pipe
The distal end gate valve 13 of outbound course on road 11 and positioned at gas source access infrastructure 14, gas source generator pass through gas source access infrastructure
14 convey compressed gas in dregs conveyance conduit 11 towards the direction of distal end gate valve 13, to provide dregs conveying power and by dregs
It is delivered in the slag device 3 of shield machine.Slag device 3 is belt conveyor and the slag at Belt Conveying feed opening
Case.The discharge gate 21 of screw conveyor 2 is located at the top of the front end of belt conveyor.Optionally, dregs conveyance conduit 11 to
Lower inclination arrangement and discharge port are located at the top of the rear end of belt conveyor.Optionally, the back segment of dregs conveyance conduit 11 is downward
Inclination arrangement and discharge port are located at the top of residue receiving box.When dregs is delivered to the back segment of dregs conveyance conduit 11 by gravity and
The power that gas source generator provides is swimmingly conveyed dregs more to belt conveyor.Optionally, dregs conveyance conduit
11 include multistage pipe and bridge piece, and multistage pipe is connected with each other by bridge piece.Dregs pressure after bridge piece
It reduces, so that dregs be avoided spewing phenomenon occur when being discharged from dregs conveyance conduit 11.Optionally, more dregs conveyance conduits 11
It is connect with the output end of screw conveyor 2, by more dregs conveyance conduits 11 simultaneously by the output end of screw conveyor 2
The dregs of hypertonia is discharged to prevent the generation gushed.Optionally, proximal end gate valve 12 and distal end gate valve 13 are pressure relief valve.When
When soil pressure of soil pressure is excessively high in the output end of screw conveyor 2, proximal end gate valve 12 and distal end gate valve 13 automatically opens so that spiral
A part of dregs in the output end of conveyer 2 is discharged from dregs conveyance conduit 11.Anti-spouting device of the invention, by
The output end of screw conveyor 2 adds the dregs that a part is located at the output end of screw conveyor 2 by dregs conveyance conduit 11
Discharge, gushs when to making the pressure reduction of the dregs of the output end of screw conveyor 2 to prevent dregs to be discharged；Pass through
The proximal end gate valve 12 being installed on dregs conveyance conduit 11 controls dregs discharge of the screw conveyor 2 into dregs conveyance conduit 11
It measures to control the pressure of the dregs of the output end of screw conveyor 2；It is connect by the gas source being installed on dregs conveyance conduit 11
Enter to convey compressed gas into dregs conveyance conduit 11 after structure 14 is connect with gas source generator to ensure that dregs is defeated from dregs
It send in pipeline 11 in the smooth slag device 3 for being expelled to shield machine；When the junction of dregs conveyance conduit 11 and screw conveyor 2
When blocking, the distal end gate valve 13 by closing the outbound course positioned at gas source access infrastructure 14 makes distal end gate valve 13 to dregs
The junction of conveyance conduit 11 and screw conveyor 2 forms airtight passage and makes airtight passage by opening gas source access infrastructure 14
It is interior to be full of compressed gas, so that the junction of dregs conveyance conduit 11 and screw conveyor 2 will be jammed in using compressed gas
Dregs washes the normal use to ensure anti-spouting device open.
Gas source access infrastructure 14 is between proximal end gate valve 12 and distal end gate valve 13, the compressed gas of gas source generator generation
Body is delivered in dregs conveyance conduit 11 by gas source access infrastructure 14 towards 13 direction of distal end gate valve.When shield machine is in sandy gravel etc.
When water rich strata tunnels, the output end positioned at screw conveyor 2 is the high-pressure water body of seepage flow and the mixture of soil particle,
Will receive resistance when into longer dregs conveyance conduit 11 and during conveying, be easy to appear water body discharge and
Soil particle is detained agglomeration in dregs conveyance conduit 11 causes dregs conveyance conduit 11 to block.It opens gas source generator and opens
Distal end gate valve 13, compressed gas are entered in dregs conveyance conduit 11 by gas source access infrastructure 14, and the compressed gas of high speed is impacted
Static gas in pipeline, which generates, to be fluctuated and gas is driven to be fed forward, and makes to form negative pressure near gas source access infrastructure 14,
After proximal end gate valve 12 is opened, negative pressure is formed near gas source access infrastructure 14 and drives the dregs of the discharge of screw conveyor 2 forward
Conveying, while during transportation, the mixture of water body and soil particle in compressed gas impact dregs conveyance conduit 11 makes it
In flow regime to avoid soil particle sedimentation agglomeration that dregs conveyance conduit 11 is caused to block.
Gas source access infrastructure 14 includes access conduit and gas control valve, and the first end of access conduit is inserted into dregs delivery pipe
It is bent in road 11 and towards 13 direction of distal end gate valve, gas control valve is installed in the second end of access conduit and for controlling gas source
The amount for the compressed gas that generating device is conveyed into dregs conveyance conduit 11.The compressed gas that gas source generator generates is by connecing
Enter pipeline to be delivered in dregs conveyance conduit 11 to 13 direction of distal end gate valve, it is static in the compressed gas impulse piping of high speed
Gas, which generates, to be fluctuated and gas is driven to be fed forward, and makes to form negative pressure near gas source access infrastructure 14, when proximal end gate valve 12 is beaten
The dregs that negative pressure drives screw conveyor 2 to be discharged is formed after opening, near gas source access infrastructure 14 to be fed forward.Pass through gas control
The amount for the compressed gas that valve control gas source generator processed is conveyed into dregs conveyance conduit 11, when the mixing of water body and soil particle
Soil particle accounting is larger in object, increases the conveying capacity of compressed gas.
The output end of proximal end gate valve 12 is connect with dregs conveyance conduit 11, and the input terminal of proximal end gate valve 12 passes through flange and spiral shell
It revolves the connection of conveyer 2 and the junction of flange and screw conveyor 2 is equipped with for stopping bulky grain stone to enter dregs delivery pipe
Filter device in road 11.Optionally, filter device is filter screen or filtering baffle.Bulky grain stone is hindered by filter device
Gear, the stone for avoiding particle excessive, which enters in dregs conveyance conduit 11, to result in blockage.
In another embodiment, proximal end gate valve 12 is between gas source access infrastructure 14 and distal end gate valve 13.Gas source occurs
The compressed air that device generates is delivered in dregs conveyance conduit 11 by gas source access infrastructure 14.What gas source generator generated
The dregs that compressed air pushes screw conveyor 2 to be emitted into dregs conveyance conduit 11 is conveyed into slag device 3.When needs make
With dregs conveyance conduit 11 by the output end of screw conveyor 2 dregs be discharged when, be first turned on pressure generator and
Compressed air is delivered in dregs conveyance conduit 11 by gas source access infrastructure 14, then opens proximal end gate valve 12 and distal end gate valve 13,
The proximally dregs of the discharge of gate valve 12 is pushed by compressed air and is delivered in slag device 3, while during transportation, pressure
The mixture of water body and soil particle in contracting gas impact dregs conveyance conduit 11 is at flow regime to avoid soil
Grain sedimentation agglomeration causes dregs conveyance conduit 11 to block.When the pressure in the output end of screw conveyor 2 drops to normal model
After enclosing, proximal end gate valve 12 is closed, until the dregs in dregs conveyance conduit 11 closes distal end after being all expelled in slag device 3
Gate valve 13 and gas source generator.
A kind of application method of anti-spouting device, using above-mentioned anti-spouting device, comprising the following steps: detection helical feed
Soil pressure of soil pressure in the output end of machine 2；When the soil pressure of soil pressure in the output end of screw conveyor 2 is excessively high, gas source is opened
Generating device simultaneously will convey compressed gas in dregs conveyance conduit 11, open proximal end gate valve 12 again after opening distal end gate valve 13, from
And a part of dregs and water body are discharged to the soil pressure of soil pressure in the output end to reduce screw conveyor 2；When screw conveyor 2
Output end in soil pressure of soil pressure be reduced to normal range (NR) after, close proximal end gate valve 12 simultaneously open discharge gate 21 discharge slag
Soil.The application method of anti-spouting device of the invention, by detecting helical feed before opening discharge gate 21 and discharging dregs
Soil pressure of soil pressure in 2 end of machine then opens gas source generator when hypertonia to dregs conveyance conduit 11 and conveys compressed gas
Body is opened a part of dregs of 2 output end of screw conveyor after distal end gate valve 13 and proximal end gate valve 12 again from dregs delivery pipe
It is discharged in road 11, thus the moment for avoiding the dregs of the hypertonia of 2 output end of screw conveyor from being discharged from discharge gate 21
Spewing phenomenon occurs since pressure reduces suddenly.When the soil pressure of soil pressure in the output end of screw conveyor 2 is reduced to normally
After range, proximal end gate valve 12 is closed until all dregs in dregs conveyance conduit 11 will after being discharged out of dregs conveyance conduit 11
Gas source generator and distal valve are closed.Since the soil pressure of soil pressure in the output end of screw conveyor 2 is reduced to normal model
It encloses, therefore dregs can steadily be fallen on slag device 3 after opening discharge gate 21.
It is further comprising the steps of: when the junction of dregs conveyance conduit 11 and screw conveyor 2 blocks, to open gas source hair
Generating apparatus closes distal end gate valve 13 and opens proximal end gate valve 12, washed open the dregs at blocking by compressed gas.Pass through utilization
Compressed gas washes the dregs for being jammed in the junction of dregs conveyance conduit 11 and screw conveyor 2 to ensure anti-spouting device open
Normal use.
It opens discharge gate 21 and discharges dregs, specifically includes the following steps: opening discharge gate discharge dregs and monitoring spiral shell
Revolve the soil pressure of soil pressure in the output end of conveyer 2；When the soil pressure of soil pressure in the output end of screw conveyor 2 is close to upper limit value
When, it opens gas source generator and conveys compressed gas into dregs conveyance conduit 11, open proximal end again after opening distal end gate valve 13
Gate valve 12, thus by the soil pressure of soil pressure in the output end of a part of dregs and water body discharge to reduce screw conveyor 2；Work as spiral shell
After soil pressure of soil pressure in the output end of rotation conveyer 2 is reduced to normal range (NR), proximal end gate valve 12 is closed.Opening discharge gate
During 21 discharge dregs, by the soil pressure of soil pressure in the output end of detection screw conveyor 2, when screw conveyor 2
When soil pressure of soil pressure in output end has the risk gushed close to upper limit value, that is, dregs, dropped in time by anti-spouting device
Soil pressure of soil pressure in the output end of low screw conveyor 2, to avoid the generation of spewing phenomenon.
It opens discharge gate 21 and discharges dregs, it is further comprising the steps of: to open discharge gate discharge dregs and monitor spiral
Soil pressure of soil pressure in the output end of conveyer 2；When the soil pressure of soil pressure in the output end of screw conveyor 2 is more than upper limit value
When, it arranges and closes discharge gate 21 immediately when the dregs being discharged at gate is gushed and open gas source generator to dregs conveying
Compressed gas is conveyed in pipeline 11, proximal end gate valve 12 is opened again after opening distal end gate valve 13, thus by a part of dregs and water body
The soil pressure of soil pressure in the output end to reduce screw conveyor 2 is discharged；When the dregs pressure in the output end of screw conveyor 2
After power is reduced to normal range (NR), closes proximal end gate valve 12 and reopen discharge gate 21 and discharge dregs.In shield machine driving
It in the process, is more than the upper limit since water increases the soil pressure of soil pressure in the output end for leading to work as screw conveyor 2 suddenly in stratum
When value, that is, dregs is gushed since when discharge gate 21 is discharged, by closing discharge gate 21 immediately and opening anti-dress of gushing
It sets 1 a part of dregs and water body are discharged, reduces the soil pressure of soil pressure in the output end of screw conveyor 2 in time until dregs pressure
Power is reduced to closing proximal end valve after normal range (NR) to reopen the discharge dregs of discharge gate 21 again.
The screw conveyor 2 of the present embodiment is delivered to the slag device 3 of shield machine for dregs in the native storehouse by shield machine
In to establish in the pressure balance inside and outside native storehouse and native storehouse into soil amount and the balance measured of being unearthed, including above-mentioned anti-spouting device.Spiral shell
Rotation conveyer 2 further include cylinder, in the intracorporal helical axis of cylinder, the output end for being installed on cylinder for driving helical axis
The driving device of rotation, set on cylinder output end bottom discharge gate 21, in the output end of cylinder and position
In the unimpeded mouth of 21 side of discharge gate and the output end for being used to detect screw conveyor 2 in the output end of cylinder
The pressure sensor device of soil pressure of soil pressure in portion.Above-mentioned anti-spouting device passes through the output end of unimpeded mouth and screw conveyor 2
Connection.Optionally, discharge gate 21 include the first discharge gate, the second discharge gate below the first discharge gate and
Buffering Tu Cang between the first discharge gate and the second discharge gate, the dregs that screw conveyor 2 is discharged successively pass through the
It is expelled on belt conveyor after one discharge gate 21 and the second discharge gate.The first deslagging lock is first gradually opened before discharge dregs
Door, it is above-mentioned anti-by opening if the dregs of 2 output end of screw conveyor is gushed from the first discharge gate to the native storehouse of buffering
Spouting device opens the second discharge gate again and carries out dregs discharge after reducing the soil pressure of soil pressure of 2 output end of screw conveyor.
If 2 output end of screw conveyor dregs from the first discharge gate normally fall in the native storehouse of buffering if gradually by the second deslagging lock
Door, which is opened, carries out dregs discharge.Screw conveyor 2 of the invention, when the soil pressure of soil pressure mistake in the output end of screw conveyor 2
It is big exist gush risk or occur the output end for reducing screw conveyor 2 when gushing on a small quantity in time by above-mentioned anti-spouting device
Soil pressure of soil pressure and dregs is expelled in slag device 3, to prevent dregs from gushing from discharge gate 21, avoid because
It clears up dregs and influences pipe sheet assembling efficiency and quality, reduce security risk, it is ensured that shield machine smoothly tunnels.
It can be seen from the above description that the above embodiment of the present invention realizes following technical effect:
Anti-spouting device of the invention adds dregs conveyance conduit for a part of position by the output end in screw conveyor
In screw conveyor output end dregs discharge, thus make the pressure reduction of the dregs of the output end of screw conveyor with
It gushs when dregs being prevented to be discharged；Screw conveyor is controlled to dregs by the proximal end gate valve being installed on dregs conveyance conduit
Dregs discharge amount in conveyance conduit is to control the pressure of the dregs of the output end of screw conveyor；It is defeated by being installed on dregs
Compressed gas is conveyed after sending the gas source access infrastructure on pipeline to connect with gas source generator into dregs conveyance conduit to ensure
Dregs is out of smooth in dregs conveyance conduit the slag device for being expelled to shield machine；When dregs conveyance conduit and screw conveyor
When junction blocks, the distal end gate valve by closing the outbound course positioned at gas source access infrastructure makes distal end gate valve to dregs
The junction of conveyance conduit and screw conveyor forms airtight passage and makes to fill in airtight passage by opening gas source access infrastructure
Full compressed gas, to be washed open the dregs for being jammed in the junction of dregs conveyance conduit and screw conveyor using compressed gas
To ensure the normal use of anti-spouting device.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of anti-spouting device, screw conveyor (2) is gushed when for preventing balancing earth-pressure shielding machine from tunneling, feature
It is,
The anti-spouting device (1) includes the dregs conveyance conduit (11) connecting with the output end of the screw conveyor (2), peace
It is arranged loaded on being used to control the screw conveyor (2) on the dregs conveyance conduit (11) into the dregs conveyance conduit (11)
The proximal end gate valve (12) of slagging soil, the gas for being connect with gas source generator being installed on the dregs conveyance conduit (11)
It source access infrastructure (14) and is installed on the dregs conveyance conduit (11) and is located at the defeated of the gas source access infrastructure (14)
The distal end gate valve (13) in direction out,
The gas source generator is by the gas source access infrastructure (14) towards the direction of the distal end gate valve (13) toward the slag
Compressed gas is conveyed in native conveyance conduit (11), and the slag device of shield machine is delivered to provide dregs conveying power for dregs
(3) in.
2. anti-spouting device according to claim 1, which is characterized in that
The gas source access infrastructure (14) is between the proximal end gate valve (12) and the distal end gate valve (13), the gas source hair
The compressed gas that generating apparatus generates is delivered to by the gas source access infrastructure (14) towards distal end gate valve (13) direction described
In dregs conveyance conduit (11).
3. anti-spouting device according to claim 2, which is characterized in that
The gas source access infrastructure (14) includes access conduit and gas control valve, described in the first end insertion of the access conduit
It is bent in dregs conveyance conduit (11) and towards distal end gate valve (13) direction, the gas control valve is installed on the access tube
The compressed gas conveyed in the second end in road and for controlling the gas source generator into the dregs conveyance conduit (11)
Amount.
4. anti-spouting device according to claim 1, which is characterized in that
The proximal end gate valve (12) is between the gas source access infrastructure (14) and the distal end gate valve (13), the gas source hair
The compressed air that generating apparatus generates is delivered in the dregs conveyance conduit (11) and is pushed away by the gas source access infrastructure (14)
Move dregs conveying into the slag device (3) that the screw conveyor (2) is emitted into the dregs conveyance conduit (11).
5. anti-spouting device according to claim 1, which is characterized in that
The output end of the proximal end gate valve (12) is connect with the dregs conveyance conduit (11), the input of the proximal end gate valve (12)
End is connect by flange with the screw conveyor (2), and the junction of the flange and the screw conveyor (2) is equipped with and uses
Enter the filter device in the dregs conveyance conduit (11) in blocking bulky grain stone.
6. a kind of application method of anti-spouting device, which is characterized in that using any anti-dress of gushing of claim 1 to 5
Set (1), comprising the following steps:
Detect the soil pressure of soil pressure in the output end of the screw conveyor (2)；
When the soil pressure of soil pressure in the output end of the screw conveyor (2) is excessively high, open the gas source generator and to
Compressed gas is conveyed in the dregs conveyance conduit (11), opens the proximal end gate valve again after opening the distal end gate valve (13)
(12), thus by the soil pressure of soil pressure in the output end of a part of dregs and water body discharge to reduce the screw conveyor (2)；
After the soil pressure of soil pressure in the output end of the screw conveyor (2) is reduced to normal range (NR), the proximal end lock is closed
Valve (12) simultaneously opens the discharge gate (21) discharge dregs.
7. the application method of anti-spouting device according to claim 6, which is characterized in that further comprising the steps of:
When the junction of the dregs conveyance conduit (11) and the screw conveyor (2) blocks, opens the gas source and occur
Device closes the distal end gate valve (13) and opens the proximal end gate valve (12), is rushed the dregs at blocking by compressed gas
It opens.
8. the application method of anti-spouting device according to claim 6, which is characterized in that open the discharge gate (21)
Dregs is discharged, specifically includes the following steps:
It opens the discharge gate (21) discharge dregs and monitors the dregs pressure in the output end of the screw conveyor (2)
Power；
When the soil pressure of soil pressure in the output end of the screw conveyor (2) is close to upper limit value, opens the gas source and fill
It sets and conveys compressed gas into the dregs conveyance conduit (11), open the proximal end lock again after opening the distal end gate valve (13)
Valve (12), thus by the dregs pressure in the output end of a part of dregs and water body discharge to reduce the screw conveyor (2)
Power；
After the soil pressure of soil pressure in the output end of the screw conveyor (2) is reduced to normal range (NR), the proximal end lock is closed
Valve (12).
9. the application method of anti-spouting device according to claim 6, which is characterized in that open the discharge gate (21)
Dregs is discharged, specifically includes the following steps:
It opens the discharge gate (21) discharge dregs and monitors the dregs pressure in the output end of the screw conveyor (2)
Power；
When the soil pressure of soil pressure in the output end of the screw conveyor (2) is more than upper limit value, at the discharge gate (21)
Closing immediately arranges gate and opens the gas source generator to the dregs conveyance conduit when dregs of discharge is gushed
(11) compressed gas is conveyed in, the proximal end gate valve (12) is opened again after opening the distal end gate valve (13), thus by a part of
Soil pressure of soil pressure in the output end of dregs and water body discharge to reduce the screw conveyor (2)；
After the soil pressure of soil pressure in the output end of the screw conveyor (2) is reduced to normal range (NR), the proximal end lock is closed
Valve (12) simultaneously reopens the discharge gate (21) discharge dregs.
10. a kind of screw conveyor is delivered in the slag device (3) of shield machine for dregs in the native storehouse by shield machine
To establish the balance in the pressure balance inside and outside native storehouse and native storehouse into soil amount and the amount of being unearthed, which is characterized in that including claim 1
To 5 any anti-spouting devices (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832791.2A CN108952746B (en) | 2018-07-26 | 2018-07-26 | Gushing prevention device, using method and spiral conveyor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832791.2A CN108952746B (en) | 2018-07-26 | 2018-07-26 | Gushing prevention device, using method and spiral conveyor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108952746A true CN108952746A (en) | 2018-12-07 |
| CN108952746B CN108952746B (en) | 2020-12-04 |
Family
ID=64464902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810832791.2A Active CN108952746B (en) | 2018-07-26 | 2018-07-26 | Gushing prevention device, using method and spiral conveyor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108952746B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109723456A (en) * | 2019-03-18 | 2019-05-07 | 中铁六局集团有限公司 | Balancing earth-pressure shielding machine screw conveyer blowout prevention gushes device |
| CN110005424A (en) * | 2019-04-22 | 2019-07-12 | 中建三局基础设施建设投资有限公司 | It is a kind of for weakening the device and its application method that shield screw machine is gushed |
| CN110344838A (en) * | 2019-08-22 | 2019-10-18 | 中国电建集团铁路建设有限公司 | A kind of earth pressure balanced shield, EPBS structure and shield method with the anti-construction of gushing of gate |
| CN110905532A (en) * | 2019-11-11 | 2020-03-24 | 中交第四航务工程局有限公司 | Shield constructs screw machine with prevent gushing device |
| CN111706339A (en) * | 2020-05-28 | 2020-09-25 | 北京城建中南土木工程集团有限公司 | Shield constructs out-of-earth blowout preventer |
| CN112324453A (en) * | 2020-11-12 | 2021-02-05 | 安徽唐兴机械装备有限公司 | Anti-surging screw conveyor |
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| CN104373131A (en) * | 2014-11-04 | 2015-02-25 | 中交第二航务工程局有限公司 | Construction method of earth pressure balance shield tunneling machine muck pressure maintaining pumping device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723456A (en) * | 2019-03-18 | 2019-05-07 | 中铁六局集团有限公司 | Balancing earth-pressure shielding machine screw conveyer blowout prevention gushes device |
| CN110005424A (en) * | 2019-04-22 | 2019-07-12 | 中建三局基础设施建设投资有限公司 | It is a kind of for weakening the device and its application method that shield screw machine is gushed |
| CN110344838A (en) * | 2019-08-22 | 2019-10-18 | 中国电建集团铁路建设有限公司 | A kind of earth pressure balanced shield, EPBS structure and shield method with the anti-construction of gushing of gate |
| CN110344838B (en) * | 2019-08-22 | 2024-05-17 | 中电建铁路建设投资集团有限公司 | Soil pressure balance shield structure with gate blowout prevention structure and shield method |
| CN110905532A (en) * | 2019-11-11 | 2020-03-24 | 中交第四航务工程局有限公司 | Shield constructs screw machine with prevent gushing device |
| CN110905532B (en) * | 2019-11-11 | 2024-06-11 | 中交第四航务工程局有限公司 | Shield screw machine with blowout prevention device |
| CN111706339A (en) * | 2020-05-28 | 2020-09-25 | 北京城建中南土木工程集团有限公司 | Shield constructs out-of-earth blowout preventer |
| CN111706339B (en) * | 2020-05-28 | 2021-11-23 | 北京城建中南土木工程集团有限公司 | Shield constructs out-of-earth blowout preventer |
| CN112324453A (en) * | 2020-11-12 | 2021-02-05 | 安徽唐兴机械装备有限公司 | Anti-surging screw conveyor |
| CN112324453B (en) * | 2020-11-12 | 2022-12-23 | 安徽唐兴装备科技股份有限公司 | Anti-surging screw conveyor |
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