CN221195058U - Pressure relief slurry discharge auxiliary device for preventing shield from gushing - Google Patents
Pressure relief slurry discharge auxiliary device for preventing shield from gushing Download PDFInfo
- Publication number
- CN221195058U CN221195058U CN202322952865.5U CN202322952865U CN221195058U CN 221195058 U CN221195058 U CN 221195058U CN 202322952865 U CN202322952865 U CN 202322952865U CN 221195058 U CN221195058 U CN 221195058U
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- muddy water
- pipe
- pressure
- slurry
- mud
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- 239000002002 slurry Substances 0.000 title claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 85
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims 3
- 238000012544 monitoring process Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 description 7
- 230000005641 tunneling Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Abstract
The utility model discloses a pressure relief slurry discharge auxiliary device for preventing shield from gushing, which is characterized by comprising the following components: the device comprises an electromagnetic gate valve, a right-angle elbow, a pressure sensor, a muddy water discharge pipe and a muddy water buffer chamber; the pipe orifice at one end of the right-angle elbow is connected with a reserved opening at one side of the tail part of the shield spiral machine, and the pipe orifice at the other end of the right-angle elbow is connected with the inlet end of the electromagnetic gate valve; the pressure sensor is arranged on the right-angle elbow and is electrically connected with the electromagnetic gate valve, and is used for monitoring the pressure of the muddy water in the right-angle elbow; and one end pipe orifice of the muddy water discharge pipe is connected with the outlet end of the electromagnetic gate valve, and the other end of the muddy water discharge pipe is connected with the muddy water buffer chamber. The utility model can automatically discharge the muddy water in the screw machine to the conveyor belt in time when the pressure in the screw machine is overlarge, so as to reduce the pressure in the screw machine and prevent the occurrence of gushing, and meanwhile, the high-pressure muddy water discharged to the conveyor belt can not splash to pollute the shield segment.
Description
Technical Field
The utility model belongs to the technical field of shield construction, and particularly relates to a pressure relief slurry discharge auxiliary device for preventing shield gushing.
Background
The shield method is a fully mechanized construction method in the construction of the undermining method, has the advantages of safety, fast progress, environmental protection and the like, and is widely applied to the construction of domestic rail transit. The earth pressure balance shield has wide stratum adaptability and strong rock breaking capacity, and is the first choice for shield construction under various composite stratum conditions. However, when the earth pressure balance shield machine is used for tunneling in a sandy pebble stratum rich in underground water or a rock stratum with a rock weathering interface and cracks, the tail part of the spiral machine is easy to gush due to the action of water pressure, so that the following harm is generated: (1) The construction environment can be influenced by a large amount of muddy water sprayed out from the slag hole of the screw machine, so that the machine is inevitably stopped to clean muddy water or slag soil in time, and the tunneling efficiency and progress are reduced. (2) When gushing occurs, the soil pressure balance is destroyed, and the phenomena of ground collapse, shield flooding, tunnel collapse and the like and casualties are easy to occur.
Disclosure of utility model
In view of the above problems, the present utility model aims to provide a pressure-relief slurry-discharge auxiliary device for preventing shield from gushing, which can automatically and timely discharge muddy water in a screw machine onto a conveyor belt when the pressure in the shield screw machine is excessive, so as to reduce the pressure in the screw machine and prevent gushing, and meanwhile, high-pressure muddy water discharged onto the conveyor belt can not splash to pollute shield segments.
The utility model is realized by the following technical scheme.
A pressure relief slurry discharge auxiliary device for preventing shield gushing, comprising:
An electromagnetic gate valve;
The pipe orifice at one end of the right-angle elbow is connected with a reserved opening at one side of the tail part of the shield spiral machine, and the pipe orifice at the other end of the right-angle elbow is connected with the inlet end of the electromagnetic gate valve;
The pressure sensor is arranged on the right-angle elbow and is electrically connected with the electromagnetic gate valve and used for monitoring the pressure of the muddy water in the right-angle elbow;
The pipe orifice at one end of the muddy water discharge pipe is connected with the outlet end of the electromagnetic gate valve, and the other end of the muddy water discharge pipe is connected with the muddy water buffer chamber; and
The mud-water buffer chamber is arranged above the mud conveyer belt and used for reducing the flow speed of high-pressure mud water discharged by the mud-water discharge pipe and collecting and guiding the high-pressure mud water onto the mud conveyer belt.
Preferably, the muddy water discharge pipe is a hose.
Preferably, the mud water buffer chamber is a tank structure with a cavity inside, one side of the mud water buffer chamber is provided with a drain pipe interface connected with a mud water drain pipe, and the bottom of the mud water buffer chamber is provided with a mud water drain port.
Preferably, the section of the muddy water discharge port is in an inverted trapezoid shape, and a detachable grating plate is arranged in the muddy water discharge port.
Preferably, the outlet width of the mud water discharge port is smaller than the width of the mud conveyor belt of the shield tunneling machine.
Preferably, the right-angle bent pipe is a galvanized steel pipe.
Compared with the prior art, the utility model has the beneficial effects that: the utility model can automatically discharge the muddy water in the screw machine to the conveyor belt in time when the pressure in the screw machine is overlarge, so as to reduce the pressure in the screw machine and prevent the occurrence of gushing, and meanwhile, the high-pressure muddy water discharged to the conveyor belt can not splash to pollute the shield segment, thereby having better practical and popularization values.
Drawings
FIG. 1 is a front view block diagram of the present utility model;
FIG. 2 is a cross-sectional view at A-A in FIG. 1;
FIG. 3 is a schematic view of the structure of the mud buffer chamber;
FIG. 4 is a schematic cross-sectional view of the structure at B-B in FIG. 3;
FIG. 5 is a schematic view of the present utility model when installed on a shield machine for use;
The meaning of each mark in the above figures is: the device comprises an electromagnetic gate valve 1, a right-angle elbow pipe 2, a reserved port 3, a mud buffer chamber 4, a drain pipe connector 401, a mud water discharge port 402, a grating plate 403, a pressure sensor 5, a mud conveyer belt 6, a screw 7 and a mud water discharge pipe 8.
Detailed Description
The following description of the embodiments of the present utility model will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying 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 utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Example 1
Referring to fig. 1 to 5, a pressure relief and slurry discharge auxiliary device for preventing shield gushing includes: the device comprises an electromagnetic gate valve 1, a right-angle elbow pipe 2, a pressure sensor 5, a mud water discharge pipe 8 and a mud water buffer chamber 4; the pipe orifice at one end of the right-angle elbow pipe 2 is connected with the reserved opening 3 at one side of the tail part of the shield spiral machine, and the pipe orifice at the other end is connected with the inlet end of the electromagnetic gate valve 1; the pressure sensor 5 is arranged on the right-angle elbow pipe 2 and is electrically connected with the electromagnetic gate valve 1, and is used for monitoring the pressure of the muddy water in the right-angle elbow pipe 2; the pipe orifice at one end of the muddy water discharge pipe 8 is connected with the outlet end of the electromagnetic gate valve 1, and the other end of the muddy water discharge pipe is connected with the muddy water buffer chamber 4; the mud water buffer chamber 4 is arranged above the mud conveyor belt 6, and is used for slowing down the flow rate of high-pressure mud water discharged by the mud water discharge pipe 8 and collecting and guiding the high-pressure mud water onto the mud conveyor belt 6;
Based on the above structure, the working principle or the using method of the utility model is as follows: referring to fig. 5, an end pipe orifice of a right-angle elbow pipe 2 is connected with a reserved opening 3 at one side of the tail part of a shield screw machine, a mud water discharge pipe 8 is laid along a device bridge at the tail part of the shield screw machine, the tail part of the mud water discharge pipe 8 is connected with a mud conveyor belt 6, and a mud water buffer chamber 4 is arranged at a proper position right above the mud conveyor belt 6, so that the device is installed; when the pressure sensor 5 monitors that the pressure in the shield screw machine is lower than a threshold value, a control signal is sent to the electromagnetic gate valve 1, so that the electromagnetic gate valve 1 is in a closed state; when the pressure sensor 5 monitors that the pressure in the shield screw machine is overlarge, a control signal is sent to the electromagnetic gate valve 1, so that the electromagnetic gate valve 1 is opened, and mud water in the screw machine is automatically discharged onto the conveyor belt in time, so that the pressure in the screw machine is reduced, the blowout is prevented, and meanwhile, high-pressure mud water discharged onto the conveyor belt cannot splash to pollute shield segments due to the action of the mud water buffer chamber 4.
To facilitate the installation and laying of the mud water drain pipe 8, further, in a preferred embodiment, the mud water drain pipe 8 is a hose.
Further, in a preferred embodiment, the mud-water buffer chamber 4 is a tank structure with a cavity inside, one side of the mud-water buffer chamber 4 is provided with a drain pipe interface 401 connected with the mud-water drain pipe 8, and the bottom of the mud-water buffer chamber 4 is provided with a mud-water drain port 402; based on this structure, when high-pressure muddy water is discharged from the mouth of pipe of muddy water discharge pipe 8, because the velocity of flow of high-pressure muddy water is big, if directly discharge to mud conveyer belt 6, then can sputter to shield segment or shield constructs the machine to pollute construction environment, through the effect of muddy water buffer chamber 4, high-pressure muddy water can discharge earlier to the cavity of muddy water buffer chamber 4 in carrying out the step down, later discharge to mud conveyer belt 6 through muddy water discharge port 402 that the bottom of muddy water buffer chamber 4 set up, thereby can avoid the sputtering of high-pressure muddy water.
Further, in a preferred embodiment, the cross section of the mud water discharge port 402 is inverted trapezoid, and a detachable grating plate 403 is disposed in the mud water discharge port 402, in order to reduce the flow rate of the high-pressure mud water and to block the flushing of the mud conveyor belt 6 by the broken stone in the high-pressure mud water.
Further, in a preferred embodiment, the outlet width of the mud discharge port 402 is less than the width of the shield tunneling machine mud conveyer.
Further, in a preferred embodiment, the right angle bend 2 is a galvanized steel pipe.
Claims (6)
1. A pressure relief slurry discharge auxiliary device for preventing shield gushing, comprising:
An electromagnetic gate valve (1);
The device comprises a right-angle elbow pipe (2), wherein a pipe orifice at one end of the right-angle elbow pipe (2) is connected with a reserved opening (3) at one side of the tail part of the shield spiral machine, and a pipe orifice at the other end of the right-angle elbow pipe is connected with the inlet end of an electromagnetic gate valve (1);
The pressure sensor (5) is arranged on the right-angle elbow pipe (2) and is electrically connected with the electromagnetic gate valve (1) to monitor the pressure of the muddy water in the right-angle elbow pipe (2);
The muddy water discharging pipe (8), a pipe orifice at one end of the muddy water discharging pipe (8) is connected with the outlet end of the electromagnetic gate valve (1), and the other end of the muddy water discharging pipe is connected with the muddy water buffer chamber (4); and
The mud water buffer chamber (4), mud water buffer chamber (4) set up in mud conveyer belt (6) top for slow down the velocity of flow of the high-pressure mud water that mud water discharge pipe (8) discharged, and collect water conservancy diversion to mud conveyer belt (6) with high-pressure mud water.
2. A pressure relief and slurry discharge auxiliary device for preventing shield gushing according to claim 1, characterized in that the muddy water discharge pipe (8) is a hose.
3. The pressure relief and slurry discharge auxiliary device for preventing shield gushing according to claim 1, wherein the slurry buffer chamber (4) is a tank structure with a cavity inside, a drain pipe interface (401) connected with a slurry drain pipe (8) is arranged on one side of the slurry buffer chamber (4), and a slurry drain port (402) is arranged at the bottom of the slurry buffer chamber (4).
4. A pressure relief and slurry discharge auxiliary device for preventing shield gushing according to claim 3, characterized in that the cross section of the muddy water discharge opening (402) is in an inverted trapezoid, and a detachable grating plate (403) is arranged in the muddy water discharge opening (402).
5. A pressure relief and slurry discharge assist device for preventing shield gushing as claimed in claim 3, wherein the outlet width of the slurry discharge port (402) is smaller than the width of the shield machine slurry conveyor.
6. A pressure relief and slurry discharge auxiliary device for preventing shield gushing according to claim 3, characterized in that the right angle bend (2) is a galvanized steel pipe.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221195058U true CN221195058U (en) | 2024-06-21 |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant |