CN216110748U - Slurry discharging device for pipe replacement of slurry shield - Google Patents
Slurry discharging device for pipe replacement of slurry shield Download PDFInfo
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- CN216110748U CN216110748U CN202121010069.4U CN202121010069U CN216110748U CN 216110748 U CN216110748 U CN 216110748U CN 202121010069 U CN202121010069 U CN 202121010069U CN 216110748 U CN216110748 U CN 216110748U
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Abstract
The utility model provides a slurry shield pipe-changing and slurry-discharging device which comprises a sewage pump, a slurry storage tank input pipe, a slurry storage tank, a main slurry outlet control assembly and an auxiliary slurry outlet control assembly, wherein two ends of the slurry storage tank input pipe are connected with the sewage pump and the slurry storage tank; the utility model adopts the structural design of double-channel reversing slurry discharge to realize normal tunneling of the shield tunneling machine while adding the slurry discharge pipe, the switching function of the three-way reversing valve ensures that slurry cannot pollute the environment in the tunnel, and meanwhile, the auxiliary slurry discharge control assembly adopts the matching combination of soft and hard pipes, thereby effectively prolonging the service life of the pipe group, and having simple structure and cost saving.
Description
Technical Field
The utility model relates to the technical field of slurry shield equipment in shield tunnel construction, in particular to a slurry shield pipe replacing and discharging device.
Background
The slurry shield tunnel construction has good pressure balance capability due to the mud film generated in the process, so that the slurry shield tunnel construction is widely applied to tunnel construction of geological layers such as silt, gravel, pebble and the like with large water pressure, the pressure control of the whole slurry shield equipment is systematically controlled, and the slurry discharge device has very important effect on the stable operation of the whole system control as the rear end of the system. Generally, the mucking mode of the slurry shield machine is as follows: after being mixed in a mud-water cabin, the slag soil cut by the cutter head and the slurry injected outside the tunnel enter an air cushion cabin through a slurry door, are crushed by a stone crusher of the air cushion cabin and are sucked into a slurry discharge pipe through a sewage pump of a circulation system to be discharged outside the tunnel; with the tunneling of the tunnel, the slurry discharge pipe needs to be extended every time the tunnel is tunneled for a certain distance, the extension process is to disconnect the slurry discharge pipe firstly and then connect the extension section, and the process is repeated in this way, but when the pipe replacement operation is started under the condition that slurry is not completely discharged, slurry can be directly discharged into the tunnel, so that the cleaning burden is caused, the tunneling process with the originally limited operation space is greatly influenced, and the construction cost is increased.
Chinese utility model patent CN206753595U discloses a novel minor diameter slurry shield constructs pipe replacement device, including advancing the flexible pipe of thick liquid and arranging the flexible pipe of thick liquid, advance the flexible pipe of thick liquid and advance thick liquid union coupling, arrange the flexible pipe of thick liquid and arrange thick liquid union coupling, advance the flexible pipe of thick liquid and arrange the flexible pipe of thick liquid and establish on a platform truck, arrange thick liquid pipe and advance thick liquid pipe and establish on No. two platform trucks, be equipped with hydraulic hoist engine on the platform truck, be equipped with the traction sheave on No. two platform trucks, hydraulic hoist engine's rope and traction sheave are connected, arrange and be equipped with thick liquid ball valve and expansion joint on the thick liquid pipe, advance to be equipped with on the thick liquid pipe and advance thick liquid ball valve and expansion joint. The utility model adopts the trolley and the telescopic pipe which move relatively, realizes the shield tunneling and simultaneously drives the muddy water pipe to move, and has simple structural arrangement; constructors repeat the steps of tunneling, pipe adding and tunneling, so that the synchronous lengthening of the muddy water pipe can be realized, and the operation is convenient; the whole set of device low price practices thrift the cost, and occupation space is little, is applicable to minor diameter shield and constructs the machine, but, this utility model still does not solve the problem that trades the pipe in-process thick liquid and is discharged to the tunnel in.
The utility model Chinese patent CN105298510A provides a slurry shield pipe-changing slurry discharge device and a slurry discharge mode capable of discharging slurry in a slurry pipe quickly and without leakage, comprising a sewage pump and a closed slurry storage tank, wherein a slurry inlet of the closed slurry storage tank is divided into two paths, one path is provided with a master control ball valve and then is connected with a slurry inlet pipe through a slurry inlet pipe ball valve, and is connected with a slurry discharge pipe through a slurry discharge pipe ball valve, the other path is connected with a sewage tank through a diaphragm pump, and the sewage tank is respectively connected with the slurry inlet pipe ball valve and the slurry discharge pipe ball valve through the sewage ball valve; a pulp inlet pipe control ball valve and a pulp inlet pipe gate valve are arranged at two ends of the pulp inlet pipe, a pulp inlet pipe breathing port is arranged between the pulp inlet pipe control ball valve and the pulp inlet pipe gate valve, a pulp discharge pipe control ball valve and a pulp discharge pipe gate valve are arranged at two ends of the pulp discharge pipe, and a pulp discharge pipe breathing port is arranged between the pulp discharge pipe control ball valve and the pulp discharge pipe gate valve; the slurry discharge of the utility model can basically realize no leakage, thereby ensuring the cleanness of the tunnel and reducing the construction cost. However, the structure of the utility model is complex, the pipe replacement operation has large requirements on the capacity of the sewage tank and the liquid storage tank, and the utility model is not suitable for the small-diameter slurry shield operation, and meanwhile, when the capacity of the sewage tank and the liquid storage tank is insufficient to provide sufficient pipe replacement time, the stability of the tunneling process is affected, which is very unfavorable for the implementation of the slurry shield project in a high risk area.
SUMMERY OF THE UTILITY MODEL
The utility model aims to: aiming at the problems of the existing slurry shield pipe-changing and slurry-discharging device, the slurry-discharging device which can not only ensure pipe changing, but also not influence tunneling and ensure no slurry discharge in a tunnel is provided.
Specifically, the utility model provides a slurry discharge device for pipe replacement of a slurry shield, which is characterized by comprising: the slurry discharging device comprises a sewage pump, a slurry storage tank input pipe, a slurry storage tank, a main slurry outlet control assembly and an auxiliary slurry outlet control assembly, wherein the sewage pump, the slurry storage tank input pipe, the slurry storage tank, the main slurry outlet control assembly and the auxiliary slurry outlet control assembly are connected with an outlet of the air cushion bin; the main slurry outlet control assembly comprises a main throttle control valve, a valve connecting pipe, a three-way reversing valve and a slurry discharge pipe, wherein an input port of the main throttle control valve is connected with a first output port of the slurry storage tank, an output port of the main throttle control valve is connected with the left end of the valve connecting pipe, the right end of the valve connecting pipe is connected with the three-way reversing valve, and the slurry discharge pipe is connected with the three-way reversing valve; the auxiliary slurry outlet control assembly comprises an auxiliary throttle control valve, a telescopic pipe and an L-shaped bent pipe, an input port of the auxiliary throttle control valve is connected with a second output port of the slurry storage tank, an output port of the auxiliary throttle control valve is connected with the left end of the telescopic pipe, the right end of the telescopic pipe is connected with the left end of the L-shaped bent pipe, and the vertical end of the L-shaped bent pipe is connected with the three-way reversing valve.
Furthermore, the three-way reversing valve is provided with a reversing valve main input port, a reversing valve auxiliary input port, a reversing valve output port and a reversing switch, the reversing valve main input port is connected with the valve indirect pipe, the reversing valve output port is connected with the pulp discharge pipe, the reversing valve auxiliary input port is connected with the L-shaped bent pipe, the reversing switch controls the reversing valve main input port to be communicated with the reversing valve output port in a one-way mode, and the reversing valve auxiliary input port is communicated with the reversing valve output port in a one-way mode.
Furthermore, the reversing switch is a manual and electromagnetic driven dual-drive combined switch.
Further, the tank body of the slurry storage tank is bucket-shaped.
Furthermore, flow sensors are arranged at the first output port of the pulp storage tank and the second output port of the pulp storage tank, so that the pulp output amount can be monitored and recorded in real time.
Furthermore, a slurry liquid level alarm is arranged at the position, close to the top opening of the slurry storage tank inlet side, of the slurry storage tank body and below the top opening of the slurry storage tank inlet side, and is used for prompting that the slurry storage amount reaches a limit value.
Furthermore, the main throttle control valve, the valve connecting pipe, the three-way reversing valve and the slurry discharge pipe are connected by flange surfaces.
Furthermore, the auxiliary throttle control valve, the telescopic pipe and the L-shaped bent pipe are connected by flange surfaces.
Furthermore, a sealing ring is arranged between the flange surfaces.
Furthermore, the pipe diameters of the valve connecting pipe, the pulp discharging pipe and the L-shaped bent pipe are the same.
Furthermore, the sewage pump is a variable-frequency speed-regulating sewage pump.
Compared with the prior art, the slurry shield pipe replacement and slurry discharge device has the following beneficial effects:
1. the slurry shield pipe changing and slurry discharging device adopts the double-channel reversing slurry discharging structural design of the main slurry outlet control assembly and the auxiliary slurry outlet control assembly, ensures that the simultaneous operation of adding the slurry discharging pipe and shield tunneling can not be interfered mutually due to time limit problem, thereby effectively improving the installation quality of the added slurry discharging pipe, and well meeting the time limit requirement of long-time uninterrupted continuous operation for slurry shield operation implemented in a high-risk area.
2. The slurry shield pipe-changing and slurry-discharging device provided by the utility model realizes pipe-changing operation through the switching function of the three-way reversing valve, does not influence normal slurry discharging, does not cause the problems of environmental pollution in a tunnel and the like caused by directly discharging slurry into the tunnel, and has a more prominent effect when being applied to small-diameter slurry shield tunnel operation.
3. The auxiliary slurry outlet control assembly of the slurry shield pipe changing and discharging device ensures that resistance is reduced to the maximum extent in the slurry discharging process through the matching combination of the hard L-shaped bent pipe and the soft telescopic pipe, effectively prolongs the service life of the telescopic pipe, and achieves the composite efficiency of simple structure and cost saving.
Drawings
Fig. 1 is a schematic top view of a slurry discharge device according to the present invention.
FIG. 2 is a schematic view of the working principle of the slurry discharging device before pipe replacement.
FIG. 3 is a schematic view of a pipe replacing process of the slurry discharging device.
Shown in the figure: 1-sewage pump, 2-slurry storage tank input pipe, 3-slurry storage tank, 3.1-slurry storage tank input port, 3.2-slurry storage tank first output port, 3.3-slurry storage tank second output port, 4-main slurry outlet control component, 4.1-main throttle control valve, 4.2-valve connecting pipe, 4.3-three-way reversing valve, 4.4-slurry discharge pipe, 4.3.1-reversing valve main input port, 4.3.2-reversing valve auxiliary input port, 4.3.3-reversing valve output port, 4.3.4-reversing switch, 5-auxiliary slurry outlet control component, 5.1-auxiliary throttle control valve, 5.2-telescopic pipe, 5.3-L-shaped bent pipe and 6-air cushion bin outlet.
In the figure, an arrow A represents the slurry flow direction, an arrow B represents the tunneling direction of the shield tunneling machine, an arrow I represents that the reversing switch is in a position I, and an arrow II represents that the reversing switch is in a position II.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1, a slurry shield pipe-changing slurry discharging device is characterized in that the slurry discharging device comprises: the device comprises a sewage pump 1, a slurry storage tank input pipe 2, a slurry storage tank 3, a main slurry outlet control component 4 and an auxiliary slurry outlet control component 5 which are connected with an air cushion bin outlet 6, wherein the left end and the right end of the slurry storage tank input pipe 2 are respectively connected with an output port (not shown in the figure) of the sewage pump 1 and an input port 3.1 of the slurry storage tank; the main pulp outlet control component 4 comprises a main throttle control valve 4.1, a valve indirect pipe 4.2, a three-way reversing valve 4.3 and a pulp discharge pipe 4.4, wherein an input port (not shown in the figure) of the main throttle control valve 4.1 is connected with a first output port 3.2 of a pulp storage tank, an output port (not shown in the figure) of the main throttle control valve 4.1 is connected with the left end of the valve indirect pipe 4.2, the right end of the valve indirect pipe 4.2 is connected with the three-way reversing valve 4.3, and the pulp discharge pipe 4.4 is connected with the three-way reversing valve 4.3; the auxiliary slurry outlet control component 5 comprises an auxiliary throttle control valve 5.1, a telescopic pipe 5.2 and an L-shaped bent pipe 5.3, wherein an input port (not shown in the figure) of the auxiliary throttle control valve 5.1 is connected with a second output port 3.3 of the slurry storage tank, an output port (not shown in the figure) of the auxiliary throttle control valve 5.1 is connected with the telescopic pipe 5.2, the right end of the telescopic pipe 5.2 is connected with the left end of the L-shaped bent pipe 5.3, and the vertical end of the L-shaped bent pipe 5.3 is connected with a three-way reversing valve 4.3.
Furthermore, the three-way reversing valve 4.3 is provided with a reversing valve main input port 4.3.1, a reversing valve auxiliary input port 4.3.2, a reversing valve output port 4.3.3 and a reversing switch 4.3.4, the reversing valve main input port 4.3.1 is connected with the valve indirect pipe 4.2, the reversing valve output port 4.3.3 is connected with the pulp discharge pipe 4.4, the reversing valve auxiliary input port 4.3.2 is connected with the L-shaped bent pipe 5.3, the reversing switch 4.3.4 controls the reversing valve main input port 4.3.1 to be communicated with the reversing valve output port 4.3.3 in a one-way mode, and the reversing valve auxiliary input port 4.3.2 is communicated with the reversing valve output port 4.3.3 in a one-way mode.
Further, the reversing switch 4.3.4 is a manually and electromagnetically driven dual-drive combination switch.
Further, the tank body of the pulp storage tank 3 is bucket-shaped.
Further, the first output port 3.2 of the pulp storage tank and the second output port 3.3 of the pulp storage tank are provided with flow sensors (not shown in the figure), so that the pulp output amount can be monitored and recorded in real time.
Further, a slurry liquid level alarm (not shown in the figure) is arranged on the tank body of the slurry storage tank 3 at the position, close to the side top opening of the slurry storage tank input port 3.1, and the slurry liquid level alarm is used for prompting that the slurry storage amount reaches the limit value.
Furthermore, the main throttle control valve 4.1, the valve indirect pipe 4.2, the three-way reversing valve 4.3 and the slurry discharge pipe 4.4 are connected by flange surfaces.
Furthermore, the auxiliary throttle control valve 5.1, the extension tube 5.2 and the L-shaped bent tube 5.3 are connected by flange surfaces.
Furthermore, a sealing ring is arranged between the flange surfaces.
Furthermore, the pipe diameters of the valve connecting pipe 4.2, the slurry discharging pipe 4.4 and the L-shaped bent pipe 5.3 are the same.
Further, the sewage pump 1 is a variable frequency speed regulating pump.
The specific application method of the utility model is further explained by combining the attached figures 2-3:
as shown in fig. 2, the driving direction of the slurry shield machine is indicated by an arrow B in the figure, the generated waste slurry is pumped out from the air cushion outlet 6 to the slurry storage tank 3 through the dredge pump 1, and then is discharged out of the tunnel along the direction of the arrow a through the main slurry outlet control assembly 4, in the process, the main throttle control valve 4.1 is opened, the auxiliary throttle control valve 5.1 is closed, and the reversing switch 4.3.4 of the three-way reversing valve 4.3 is at the position i;
as shown in fig. 3, the slurry shield machine continues to move forward along the direction indicated by the arrow B in the tunneling direction, the extension tube 5.2 starts to extend, the main throttle control valve 4.1 is closed, the auxiliary throttle control valve 5.1 is opened, the reversing switch 4.3.4 of the three-way reversing valve 4.3 is placed at the position ii, the connection between the main throttle control valve 4.1 and the valve indirect pipe 4.2 is disconnected, and at this time, the waste slurry is discharged out of the tunnel through the auxiliary slurry outlet control assembly 5, the three-way reversing valve 4.3 and the slurry discharge pipe 4.4; when the extension tube 5.2 extends to a preset length, a new valve indirect tube 4.2 and a new three-way reversing valve 4.3 are connected between the main throttle control valve 4.1 and the original valve indirect tube 4.2;
after the new indirect valve pipe 4.2 and the new three-way reversing valve 4.3 are connected, the original indirect valve pipe 4.2 is taken as a new slurry discharge pipe 4.4 to continue working, the auxiliary throttle control valve 5.1 is closed, the main throttle control valve 4.1 is opened, the reversing switch 4.3.4 of the three-way reversing valve 4.3 is placed at the position I, then the connection between the L-shaped bent pipe 5.3 and the original three-way reversing valve 4.3 is disconnected, the L-shaped bent pipe 5.3 is connected with the new auxiliary input port 4.3.2 of the three-way reversing valve, the slurry discharge device shown in the figure 2 is restored, and the pipe replacement is completed.
The present invention is not limited to the above-described embodiments, and any variations, modifications, and alterations that may occur to one skilled in the art without departing from the spirit of the utility model are intended to be within the scope of the utility model.
Claims (10)
1. The utility model provides a muddy water shield trades pipe and arranges thick liquid device which characterized in that, arrange thick liquid device and include: the slurry discharging device comprises a sewage pump, a slurry storage tank input pipe, a slurry storage tank, a main slurry outlet control assembly and an auxiliary slurry outlet control assembly, wherein the sewage pump, the slurry storage tank input pipe, the slurry storage tank, the main slurry outlet control assembly and the auxiliary slurry outlet control assembly are connected with an outlet of the air cushion bin; the main slurry outlet control assembly comprises a main throttle control valve, a valve connecting pipe, a three-way reversing valve and a slurry discharge pipe, wherein an input port of the main throttle control valve is connected with a first output port of the slurry storage tank, an output port of the main throttle control valve is connected with the left end of the valve connecting pipe, the right end of the valve connecting pipe is connected with the three-way reversing valve, and the slurry discharge pipe is connected with the three-way reversing valve; the auxiliary slurry outlet control assembly comprises an auxiliary throttle control valve, a telescopic pipe and an L-shaped bent pipe, an input port of the auxiliary throttle control valve is connected with a second output port of the slurry storage tank, an output port of the auxiliary throttle control valve is connected with the left end of the telescopic pipe, the right end of the telescopic pipe is connected with the left end of the L-shaped bent pipe, and the vertical end of the L-shaped bent pipe is connected with the three-way reversing valve.
2. The slurry shield pipe-changing and slurry-discharging device according to claim 1, wherein the three-way reversing valve is provided with a reversing valve main input port, a reversing valve auxiliary input port, a reversing valve output port and a reversing switch, the reversing valve main input port is connected with the valve indirect pipe, the reversing valve auxiliary input port is connected with the L-shaped bent pipe, the reversing valve output port is connected with the slurry discharging pipe, the reversing switch controls the reversing valve main input port to be in one-way communication with the reversing valve output port, and the reversing valve auxiliary input port is in one-way communication with the reversing valve output port.
3. The slurry shield pipe changing and discharging device according to claim 2, wherein the reversing switch is a manual and electromagnetic driven dual-drive combined switch.
4. The slurry shield pipe-changing and slurry-discharging device according to claim 1, wherein the slurry storage tank body is bucket-shaped, and a slurry level alarm is arranged at a position of the slurry storage tank body, which is downward from a top opening of the slurry storage tank inlet side.
5. The slurry shield pipe replacing and slurry discharging device according to claim 4, wherein flow sensors are arranged at the first output port of the slurry storage tank and the second output port of the slurry storage tank.
6. The slurry shield pipe replacing and slurry discharging device according to claim 1, wherein the main throttle control valve, the inter-valve connecting pipe, the three-way reversing valve and the slurry discharging pipe are connected by flange surfaces.
7. The slurry shield pipe replacing and discharging device according to claim 1, wherein the auxiliary throttle control valve, the telescopic pipe and the L-shaped bent pipe are connected by flange surfaces.
8. A slurry shield pipe-changing and slurry-discharging device according to claim 6 or 7, wherein a sealing ring is arranged between the flange surfaces.
9. The slurry shield pipe replacing and discharging device according to claim 1, wherein the pipe diameters of the valve connecting pipe, the slurry discharging pipe and the L-shaped bent pipe are the same.
10. The slurry shield pipe-changing and slurry-discharging device according to claim 1, wherein the sewage pump is a variable-frequency speed-regulating sewage pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121010069.4U CN216110748U (en) | 2021-05-12 | 2021-05-12 | Slurry discharging device for pipe replacement of slurry shield |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121010069.4U CN216110748U (en) | 2021-05-12 | 2021-05-12 | Slurry discharging device for pipe replacement of slurry shield |
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| CN216110748U true CN216110748U (en) | 2022-03-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776318A (en) * | 2022-04-27 | 2022-07-22 | 中国铁建重工集团股份有限公司 | Shield tunneling machine deslagging system and construction method |
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2021
- 2021-05-12 CN CN202121010069.4U patent/CN216110748U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114776318A (en) * | 2022-04-27 | 2022-07-22 | 中国铁建重工集团股份有限公司 | Shield tunneling machine deslagging system and construction method |
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