CN219119213U - Two stifled notes flexible pressurize intelligence hole sealing system - Google Patents
Two stifled notes flexible pressurize intelligence hole sealing system Download PDFInfo
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- CN219119213U CN219119213U CN202223170864.7U CN202223170864U CN219119213U CN 219119213 U CN219119213 U CN 219119213U CN 202223170864 U CN202223170864 U CN 202223170864U CN 219119213 U CN219119213 U CN 219119213U
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Abstract
The utility model provides a two blocks of intelligent hole sealing system of a flexible pressurize of annotating, including storing up the thick liquid device, the slip casting pump, boost tank and defeated thick liquid are responsible for, the intake connection that the thick liquid device downside and defeated thick liquid were responsible for, the slip casting pump is installed on defeated thick liquid is responsible for in proper order along the liquid flow direction, defeated thick liquid is responsible for along tunnel length direction to be arranged, it evenly is equipped with a plurality of connecting pipes along length direction on the defeated thick liquid is responsible for, the export of every connecting pipe all is connected with a slip casting and is responsible for, evenly be connected with two blocks of one notes hole packer of a plurality of along length direction on every slip casting is responsible for; the utility model makes stirring and centralized grouting on the slurry site, and after grouting is completed, the grouting pump is cleaned in a centralized way, thereby saving time and reducing labor intensity of workers. The flowable gel material enables the hole packer to flexibly seal holes, the hole packer can be changed along with the change of drilling, when the fracture of the drilling hole is expanded, a mechanical valve is opened, the gel material is injected, the fracture is filled, and the drilling hole is always in a pressure maintaining state.
Description
Technical Field
The utility model belongs to the technical field of coal mine gas extraction, and particularly relates to a two-plug one-injection flexible pressure-maintaining intelligent hole sealing system.
Background
Underground coal mine gas extraction is a main means for solving the coal mine gas safety problem. After the coal seam drilling construction adopted by underground roadway gas extraction is carried out, the smooth proceeding of gas extraction is ensured, hole sealing is carried out immediately, the traditional hole sealing section which is solidified after hole sealing is carried out on the coal seam drilling is not capable of realizing pressure maintaining all the time, and the later stage is influenced by roadway deformation, mining to influence the drilling deformation or stress concentration and the like to influence the plugging section to easily cause the crack to cause the drilling gas leakage, the pressure is reduced, and the gas concentration is reduced. Some mines are closed and the drilling holes are drilled to treat drilling gas leakage, some mines are directly drilled with the original hole sealing device and the solid hole sealing section along the drilling positions again, and the holes are sealed, so that circulation is achieved, the later gas pumping efficiency and the later gas pumping concentration are directly affected, and a large amount of labor workload and capital investment are increased.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides the two-plug one-injection flexible pressure-maintaining intelligent hole sealing system which has high hole sealing efficiency, stable hole sealing pressure, safety and reliability and reduces the maintenance of drilling holes in the gas extraction process.
In order to solve the technical problems, the utility model adopts the following technical scheme: the utility model provides a two blocks of intelligent hole sealing system of a flexible pressurize of annotating, including storing up the thick liquid device, the slip casting pump, boost tank and defeated thick liquid are responsible for, the intake connection that the thick liquid device downside and defeated thick liquid were responsible for, the slip casting pump is installed on defeated thick liquid is responsible for in proper order along the liquid flow direction, defeated thick liquid is responsible for along tunnel length direction to be arranged, it evenly is equipped with a plurality of connecting pipes along length direction on the defeated thick liquid is responsible for, the export of every connecting pipe all is connected with a slip casting and is responsible for, evenly be connected with two blocks of one notes hole packer of a plurality of along length direction on every slip casting is responsible for;
the two-plug one-injection hole sealing comprises a first tire bladder, a second tire bladder and a grouting pipe, wherein a pumping pipe is inserted into a central hole of the first tire bladder and a central hole of the second tire bladder, the direction from a hole opening of a drilled hole to the bottom of the hole is the outside-in direction, the first tire bladder is positioned outside the second tire bladder, the grouting pipe sequentially penetrates through the first tire bladder and the second tire bladder from outside to inside, the inner end of the grouting pipe is plugged, a first one-way valve positioned in the first tire bladder and a second one-way valve positioned in the second tire bladder are arranged on the grouting pipe, a third one-way valve positioned between the first tire bladder and the second tire bladder is arranged on the grouting pipe, a hole sealing monitoring pressure gauge and a first constant pressure valve are arranged on the outer side of the first tire bladder, and the outer port of the grouting pipe is connected with a grouting main pipe through a grouting hose.
The slurry storage device is a plastic container, flexible hole sealing slurry is contained in the slurry storage device, a hopper is arranged on the left side of the top of the slurry storage device, a stirrer for stirring the flexible hole sealing slurry is arranged on the right side of the slurry storage device, and a connection port of the slurry storage device and a slurry conveying main pipe is positioned on the right side of the lower part of the slurry storage device.
The slurry conveying main pipe is provided with a first mechanical valve positioned between the slurry storage device and the slurry injection pump, the outlet end of the slurry conveying main pipe is provided with a first internal thread plug, and the slurry conveying main pipe is sequentially provided with an electromagnetic pressure limiting valve, a total pressure gauge and a second mechanical valve which are positioned between the pressurizing tank and the connecting pipe adjacent to the pressurizing tank along the liquid flow direction.
A third mechanical valve and a quick pipe joint are sequentially arranged on the connecting pipe along the liquid flow direction; the inlet of the grouting main pipe is connected with the quick pipe joint, the other port of the grouting main pipe is provided with a second internal thread plug, and a second constant pressure valve is arranged on the grouting main pipe at the position adjacent to the quick pipe joint.
The grouting main pipe is L-shaped or semicircular arc-shaped, the L-shaped grouting main pipe is used for bedding drilling in the coal seam roadway, the semicircular arc-shaped grouting main pipe is used for bedding drilling in the bottom pumping roadway, and a plurality of hose connecting pipe joints are uniformly arranged on the grouting main pipe and are connected with one port of a grouting hose.
By adopting the technical scheme, the tire bladder of the two-plug one-injection hole packer is cylindrical in shape as a whole, and an annular cavity is formed inside the tire bladder. The grouting device comprises a first tire bladder, a second tire bladder, a grouting pipe, a first check valve, a third check valve, a slurry (flexible hole sealing material) and a sealing device, wherein the first check valve is arranged in the first tire bladder, the first check valve is arranged in the second tire bladder, the third check valve is arranged between the first tire bladder and the second tire bladder, the slurry (flexible hole sealing material) is respectively injected into the first tire bladder and the second tire bladder through the first check valve and the second check valve, the first tire bladder and the second tire bladder prop up a drilling hole and fully contact with the drilling hole wall under the extrusion of the slurry pressure and the drilling hole wall, two ends of a hole packer are sealed and drilled, temporary hole sealing is achieved, when the grouting pressure in the first tire bladder and the second tire bladder reaches the expected value, the third check valve is opened, and the flexible hole sealing material is injected into the middle hole sealing section between the first tire bladder and the second tire bladder and fully contacts with the drilling hole, and hole sealing is completed.
The slurry storage device is used for storing flexible hole sealing materials, and delivering slurry into the roadway through the slurry injection pump, the pressurizing tank and the slurry delivery main pipe for hole sealing of the drilling holes.
The hopper is used for adding slurry raw materials into the slurry storage device, and the stirrer is used for stirring the slurry in the slurry storage device. The electromagnetic pressure limiting valve is used for limiting the slurry pressure of the main slurry conveying pipe, the total pressure gauge is used for displaying the slurry pressure of the main slurry conveying pipe, and the pressure boosting tank is used for improving the grouting pressure of the main slurry conveying pipe. The first constant pressure valve is used for keeping the pressure inside each hole packer, and the second constant pressure valve is used for keeping the pressure of slurry inside the grouting main pipe.
The method for carrying out hole sealing construction operation by adopting the utility model comprises the following steps:
(1) Constructing a layer penetrating drilling hole in the coal seam above along different angles in the bottom pumping roadway, or constructing a layer following drilling hole in the coal seam roadway;
(2) Adding a flexible hole sealing material into a grouting device, switching on a power supply by a grouting pump, and conveying the flexible grouting material to various places needing grouting hole sealing through further pressurization of a pressurizing tank under the power action of the grouting pump, wherein a grouting main pipe paved along a roadway wall;
(3) According to the grouping condition of the drilling holes, a grouting main pipe is arranged beside each group of drilling holes, the grouting main pipe is designed to be attached to the roadway wall according to the type of the drilling holes, for example, parallel bedding holes are designed to be parallel to the drilling hole connecting line (L-shaped), the grouting main pipe is fixed at the upper part or the lower part of the drilling hole connecting line of the roadway wall, layer-penetrating drilling holes are designed to be parallel to the top part (semicircular arc shape) of a bottom suction roadway on one side of the drilling hole connecting line, and hose connecting pipe joints for connecting grouting pipes of two plugging one-injection hole packer are reserved on the grouting main pipe according to requirements. And finally injecting the mixture into two embryo sacs of the hole packer and a hole sealing section between the two embryo sacs to realize hole sealing.
(4) After the hole sealing of the drilling hole is completed, the crack around the drilling hole is increased due to the deformation of the roadway in the later period to generate the reduction of the leakage pressure, the hole sealing monitoring pressure gauge on the grouting pipe is observed to display the number, the gas concentration is reduced, the first mechanical valve, the second mechanical valve and the third mechanical valve on the connecting pipe on the main pipe are opened, and the flexible hole sealing material is injected into the hole packer for multiple times. Through the fluidity and the viscosity of the gel material, the gel material fills the cracks of the drill holes, prevents the drill holes from leaking gas, and realizes flexible pressure maintaining and hole sealing.
In summary, the utility model avoids the complicated processes of conventionally sealing a hole, grouting and sealing a hole, cleaning a one-time grouting pump, and carrying out on-site stirring and centralized grouting on the slurry, and after grouting is finished, cleaning the grouting pump in a centralized way, thereby saving time and reducing the labor intensity of workers. The flowable gel material enables the hole packer to flexibly seal holes, the hole packer can be changed along with the change of drilling, when the fracture of the drilling hole is expanded, a mechanical valve is opened, the gel material is injected, the fracture is filled, and the drilling hole is always in a pressure maintaining state.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is an enlarged view of the L-shaped grouting main pipe for the coal seam drilling group in FIG. 1;
FIG. 3 is a schematic view of a semi-circular arc grouting main pipe for hole sealing of a through-layer drilling hole in the utility model;
fig. 4 is a schematic outline view of a two-plug one-injection hole packer in the present utility model;
FIG. 5 is an axial cross-sectional schematic view of a two-plug one-injection packer of the present utility model;
FIG. 6 is a schematic diagram of a two-plug one-shot sealer of the present utility model sealing a hole in a through-hole;
fig. 7 is a schematic diagram of the two-plug one-injection packer of the present utility model sealing holes in a bedding borehole.
Detailed Description
As shown in fig. 1-7, the two-plug one-injection flexible pressure-maintaining intelligent hole sealing system comprises a slurry storage device 1, a slurry injection pump 2, a pressurizing tank 3 and a slurry delivery main pipe 4, wherein the lower side part of the slurry storage device 1 is connected with an inlet of the slurry delivery main pipe 4, the slurry injection pump 2 and the pressurizing tank 3 are sequentially arranged on the slurry delivery main pipe 4 along the liquid flow direction, the slurry delivery main pipe 4 is arranged along the roadway length direction, a plurality of connecting pipes 5 are uniformly arranged on the slurry delivery main pipe 4 along the length direction, the outlet of each connecting pipe 5 is connected with a slurry injection main pipe 6, and a plurality of two-plug one-injection hole sealing devices 7 are uniformly connected on each slurry injection main pipe 6 along the length direction;
the two-plug one-injection hole sealing comprises a first tire bag 33, a second tire bag 34 and a grouting pipe 35, wherein a pumping pipe 25 is inserted into a central hole of the first tire bag 33 and a central hole of the second tire bag 34, the first tire bag 33 is positioned at the outer side of the second tire bag 34, the grouting pipe 35 sequentially penetrates through the first tire bag 33 and the second tire bag 34 from outside to inside, the inner end of the grouting pipe 35 is plugged, a first one-way valve 41 positioned in the first tire bag 33 and a second one-way valve 36 positioned in the second tire bag 34 are arranged on the grouting pipe 35, a third one-way valve 37 positioned between the first tire bag 33 and the second tire bag 34 is arranged on the grouting pipe 35, a hole sealing monitoring pressure gauge 38 and a first constant pressure valve 39 are arranged at the outer side of the first tire bag 33, and the outer port of the grouting pipe 35 is connected with a grouting main pipe 6 through a grouting hose 20.
The slurry storage device 1 is a plastic container, flexible hole sealing slurry is contained in the slurry storage device 1, a hopper 8 is arranged on the left side of the top of the slurry storage device 1, a stirrer 9 for stirring the flexible hole sealing slurry is arranged on the right side of the slurry storage device 1, and a connection port of the slurry storage device 1 and the slurry conveying main pipe 4 is positioned on the right side of the lower portion of the slurry storage device 1.
The main slurry conveying pipe 4 is provided with a first mechanical valve 10 positioned between the slurry storage device 1 and the slurry injection pump 2, the outlet end of the main slurry conveying pipe 4 is provided with a first internal thread plug 11, and the main slurry conveying pipe 4 is sequentially provided with an electromagnetic pressure limiting valve 12, a total pressure gauge 13 and a second mechanical valve 14 positioned between the pressurizing tank 3 and the connecting pipe 5 adjacent to the pressurizing tank 3 along the liquid flow direction.
A third mechanical valve 15 and a quick pipe joint 16 are sequentially arranged on the connecting pipe 5 along the liquid flow direction; the inlet of the main grouting pipe 6 is connected with the quick pipe joint 16, the other port of the main grouting pipe 6 is provided with a second internal thread plug 17, and a second constant pressure valve 18 is arranged on the main grouting pipe 6 at the position adjacent to the quick pipe joint 16.
The grouting main pipe 6 is L-shaped or semicircular arc-shaped, the L-shaped grouting main pipe 6 is used for a bedding drilling 26 in the coal seam roadway, the semicircular arc-shaped grouting main pipe 6 is used for a bedding drilling 40 in the bottom pumping roadway, a plurality of hose connecting pipe joints 19 are uniformly arranged on the grouting main pipe 6, and the hose connecting pipe joints 19 are connected with one port of a grouting hose 20.
The tire bladder of the two-plug one-injection type hole packer 7 is cylindrical in shape as a whole, and an annular cavity is formed inside the tire bladder. The grouting device comprises a grouting pipe 35, a first one-way valve 41 and a third one-way valve 37, wherein the first one-way valve 41 is arranged in the first tire 33, the first one-way valve 41 is arranged in the second tire 34, the third one-way valve 37 is arranged between the first tire 33 and the second tire 34, slurry (flexible hole sealing material) is firstly injected into the first tire 33 and the second tire 34 through the first one-way valve 41 and the second one-way valve 36 respectively, under the extrusion of the slurry pressure and the drilling wall, the first tire 33 and the second tire 34 prop up the drilling hole and fully contact the drilling hole wall, so that the two ends of the hole packer are plugged, temporary hole sealing is achieved, when the grouting pressure in the first tire 33 and the second tire 34 reaches the expected value, the third one-way valve 37 is opened, and flexible hole sealing materials are injected into the middle hole sealing sections between the first tire 33 and the second tire 34 and fully contact the drilling hole sealing hole, and hole sealing is completed.
The slurry storage device 1 is used for storing flexible hole sealing materials, and is used for conveying slurry into a roadway through the grouting pump 2, the pressurizing tank 3 and the slurry conveying main pipe for hole sealing of a drill hole.
The method for carrying out hole sealing construction operation by adopting the utility model comprises the following steps:
(1) Constructing a layer-penetrating drilling hole 40 in the bottom-pumped roadway along different angles into the coal seam above by using a drilling machine, or constructing a layer-following drilling hole 26 in the coal seam roadway;
(2) Adding a flexible hole sealing material into the grouting device 1, switching on a power supply of the grouting pump 2, and further pressurizing the flexible grouting material through a pressurizing tank 3 under the power action of the grouting pump 2, and conveying the grouting material to various places needing grouting hole sealing along a grouting main pipe 6 paved on the roadway wall;
(3) According to the grouping condition of the drilling holes, a grouting main pipe 6 is arranged beside each group of drilling holes, the grouting main pipe 6 is designed to be attached to the roadway wall according to the type of the drilling holes, for example, parallel bedding holes are designed to be parallel to the drilling hole connecting line (L-shaped), the grouting main pipe is fixed at the upper part or the lower part of the drilling hole connecting line of the roadway wall, the layer-penetrating drilling holes are designed to be parallel to the top part (semicircular arc) of a bottom suction roadway at one side of the drilling hole, and a hose connecting pipe joint 19 for connecting two grouting pipes 35 of the one-plug grouting hole packer 7 is reserved on the grouting main pipe 6 according to the requirement.
(4) Grouting and hole sealing: the slurry (flexible hole sealing material) is firstly injected into the first tire bladder 33 and the second tire bladder 34 through the first one-way valve 41 and the second one-way valve 36 respectively, the first tire bladder 33 and the second tire bladder 34 prop up the drilling holes and fully contact with the drilling holes under the extrusion of the slurry pressure and the drilling holes walls, so that the two ends of the hole packer are sealed off to temporarily seal the drilling holes, when the grouting pressure in the first tire bladder 33 and the second tire bladder 34 reaches the expected value, the third one-way valve 37 is opened, and the flexible hole sealing material is started to be injected into the middle hole sealing section between the first tire bladder 33 and the second tire bladder 34 and fully contacted with the drilling holes, so that the hole sealing is completed.
(5) After the hole sealing of the drilling hole is completed, the crack around the drilling hole is increased due to the deformation of the roadway in the later period to generate the reduction of the leakage pressure, the hole sealing monitoring pressure gauge 38 on the grouting pipe 35 is observed to indicate the number, the gas concentration is reduced, the first mechanical valve 10, the second mechanical valve 14 on the main pipe 4 of the slurry conveying pipe and the third mechanical valve 15 on the connecting pipe 5 are opened, and the flexible hole sealing material is injected into the hole packer for multiple times. Through the fluidity and the viscosity of the gel material, the gel material fills the cracks of the drill holes, prevents the drill holes from leaking gas, and realizes flexible pressure maintaining and hole sealing.
The present embodiment is not limited in any way by the shape, material, structure, etc. of the present utility model, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present utility model are all included in the scope of protection of the technical solution of the present utility model.
Claims (5)
1. Two stifled notes flexible pressurize intelligence hole sealing system, its characterized in that: the device comprises a slurry storage device, a slurry injection pump, a pressurizing tank and a slurry delivery main pipe, wherein the lower side part of the slurry storage device is connected with an inlet of the slurry delivery main pipe, the slurry injection pump and the pressurizing tank are sequentially arranged on the slurry delivery main pipe along the liquid flow direction, the slurry delivery main pipe is arranged along the length direction of a roadway, a plurality of connecting pipes are uniformly arranged on the slurry delivery main pipe along the length direction, the outlet of each connecting pipe is connected with one slurry injection main pipe, and a plurality of two-plug-one-injection hole sealing devices are uniformly connected on each slurry injection main pipe along the length direction;
the two-plug one-injection hole sealing comprises a first tire bladder, a second tire bladder and a grouting pipe, wherein a pumping pipe is inserted into a central hole of the first tire bladder and a central hole of the second tire bladder, the direction from a hole opening of a drilled hole to the bottom of the hole is the outside-in direction, the first tire bladder is positioned outside the second tire bladder, the grouting pipe sequentially penetrates through the first tire bladder and the second tire bladder from outside to inside, the inner end of the grouting pipe is plugged, a first one-way valve positioned in the first tire bladder and a second one-way valve positioned in the second tire bladder are arranged on the grouting pipe, a third one-way valve positioned between the first tire bladder and the second tire bladder is arranged on the grouting pipe, a hole sealing monitoring pressure gauge and a first constant pressure valve are arranged on the outer side of the first tire bladder, and the outer port of the grouting pipe is connected with a grouting main pipe through a grouting hose.
2. The two-plug one-injection flexible pressure-maintaining intelligent hole sealing system according to claim 1, wherein: the slurry storage device is a plastic container, flexible hole sealing slurry is contained in the slurry storage device, a hopper is arranged on the left side of the top of the slurry storage device, a stirrer for stirring the flexible hole sealing slurry is arranged on the right side of the slurry storage device, and a connection port of the slurry storage device and a slurry conveying main pipe is positioned on the right side of the lower part of the slurry storage device.
3. The two-plug one-injection flexible pressure-maintaining intelligent hole sealing system according to claim 2, wherein: the slurry conveying main pipe is provided with a first mechanical valve positioned between the slurry storage device and the slurry injection pump, the outlet end of the slurry conveying main pipe is provided with a first internal thread plug, and the slurry conveying main pipe is sequentially provided with an electromagnetic pressure limiting valve, a total pressure gauge and a second mechanical valve which are positioned between the pressurizing tank and the connecting pipe adjacent to the pressurizing tank along the liquid flow direction.
4. The two-plug one-injection flexible pressure-maintaining intelligent hole sealing system according to claim 3, wherein: a third mechanical valve and a quick pipe joint are sequentially arranged on the connecting pipe along the liquid flow direction; the inlet of the grouting main pipe is connected with the quick pipe joint, the other port of the grouting main pipe is provided with a second internal thread plug, and a second constant pressure valve is arranged on the grouting main pipe at the position adjacent to the quick pipe joint.
5. The two-plug one-injection flexible pressure-maintaining intelligent hole sealing system according to claim 4, wherein: the grouting main pipe is L-shaped or semicircular arc-shaped, the L-shaped grouting main pipe is used for bedding drilling in the coal seam roadway, the semicircular arc-shaped grouting main pipe is used for bedding drilling in the bottom pumping roadway, and a plurality of hose connecting pipe joints are uniformly arranged on the grouting main pipe and are connected with one port of a grouting hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223170864.7U CN219119213U (en) | 2022-11-29 | 2022-11-29 | Two stifled notes flexible pressurize intelligence hole sealing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223170864.7U CN219119213U (en) | 2022-11-29 | 2022-11-29 | Two stifled notes flexible pressurize intelligence hole sealing system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219119213U true CN219119213U (en) | 2023-06-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223170864.7U Active CN219119213U (en) | 2022-11-29 | 2022-11-29 | Two stifled notes flexible pressurize intelligence hole sealing system |
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| Country | Link |
|---|---|
| CN (1) | CN219119213U (en) |
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2022
- 2022-11-29 CN CN202223170864.7U patent/CN219119213U/en active Active
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