CN211773678U - Multi-functional slip casting hole packer is used in many coal seams collecting space area punishment engineering - Google Patents
Multi-functional slip casting hole packer is used in many coal seams collecting space area punishment engineering Download PDFInfo
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- CN211773678U CN211773678U CN202020034539.XU CN202020034539U CN211773678U CN 211773678 U CN211773678 U CN 211773678U CN 202020034539 U CN202020034539 U CN 202020034539U CN 211773678 U CN211773678 U CN 211773678U
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Abstract
The utility model belongs to the technical field of building engineering foundation treatment, in particular to a multifunctional grouting hole packer for multi-coal-seam goaf treatment engineering, which solves the potential safety production hazards of the prior art, such as inconvenient installation and disassembly, easy fire hazard and even explosion; the accuracy of the grouting amount is poor. The utility model comprises an outer sleeve, a grouting pipe, a slurry conveying pipe, a flowmeter and a pressure gauge; the pressure gauge on the top of the outer sleeve is detachably communicated with the outer sleeve; one end of the grout conveying pipe on the outer sleeve is communicated with the grouting pipe, and the grouting pipe is positioned in the outer sleeve; the other end of the slurry conveying pipe is detachably connected with a high-pressure grouting pump, and the high-pressure grouting pump is communicated with the slurry storage box through a pipeline; the slurry conveying pipe is provided with a flowmeter, the flowmeter is detachably communicated with the slurry conveying pipe, the flowmeter is provided with a power supply port and an output port, and the output port is communicated with a computer. The utility model is convenient, fast and safe to install and dismantle, improves the construction efficiency and accuracy, and shortens the construction period; the slip casting machine can be repeatedly used, and is energy-saving and environment-friendly.
Description
Technical Field
The utility model belongs to the technical field of building engineering ground is handled, concretely relates to multi-functional slip casting hole packer is used in many coal seams collecting space area punishment engineering.
Background
The full-filling pressure grouting construction of the goaf treatment project is that a drilling machine above the ground surface performs impact rotation to drill a stratum under the action of an air down-the-hole hammer and the torque of the drilling machine, a hole opening pipe is lowered into a six-meter position of a complete bedrock after hole forming, and finally, fly ash cement slurry is injected into a coal mine goaf collapse area and a rock stratum fracture zone covered on the coal mine goaf collapse area through a grouting system. Along with the large-scale development of urbanization, the urban land is also wider and wider. For underground mining, coal mining and other big provinces, the underground goaf is an important influence factor for limiting urban development. The full-filling pressure grouting construction method can effectively treat a large-area goaf subsidence area and a rock stratum fracture zone left by mining, thereby improving the bearing capacity of a foundation, providing powerful guarantee for the durability, safety and usability of an upper building (structure), and simultaneously solving the restriction of the underground goaf on urban development.
When multiple coal seams are encountered in the full-filling pressure grouting construction process, sectional drilling and sectional grouting are needed by a top-to-bottom or bottom-to-top method (because part of strata has more than one coal seam, and multiple coal seams exist). The grouting system belongs to a sealing device, but after one coal seam is treated, drilling and grouting construction are carried out on the next coal seam, the grouting device at an orifice pipe needs to be removed, otherwise, the next construction procedure cannot be carried out, a welding method is generally adopted on site, after the grouting treatment of one coal seam is finished, the grouting device is cut, after the drilling of the next coal seam is finished, the grouting device is welded, the construction procedure is complicated and inconvenient, residual gas or combustible gas still exists in a roadway cavity of a goaf, and fire disasters or even explosions are easily caused at the orifice when the grouting device is cut, removed or butted by electric welding; the field cutting needs an oxygen cylinder and an acetylene cylinder, which brings great hidden danger for field safety production.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem of inconvenient installation in the prior art; when the grouting device is cut and dismantled or butt-jointed by electric welding, potential safety production hazards such as fire, even explosion and the like are easily caused; the problem of poor accuracy of grouting amount, a multifunctional grouting hole packer for multi-coal-seam goaf treatment engineering.
The utility model discloses a following technical scheme realizes: a multifunctional grouting hole packer for multi-coal-seam goaf treatment engineering comprises an outer sleeve, a grouting pipe, a slurry conveying pipe, a flowmeter and a pressure gauge;
the top of the outer sleeve is provided with a pressure gauge which is detachably communicated with the outer sleeve;
the outer sleeve is provided with a slurry conveying pipe, one end of the slurry conveying pipe is communicated with the grouting pipe, and the grouting pipe is positioned in the outer sleeve; the other end of the slurry conveying pipe is detachably connected with a high-pressure grouting pump, and the high-pressure grouting pump is communicated with the slurry storage box through a pipeline; the slurry conveying pipe is provided with a flowmeter, the flowmeter is detachably communicated with the slurry conveying pipe, the flowmeter is provided with a power supply port and an output port, and the output port is communicated with a computer.
Furthermore, a pipeline is arranged in the drilled hole of the multi-coal-seam goaf, an orifice pipe is arranged at the outer end of the pipeline, and the bottom of the outer sleeve is detachably connected with the orifice pipe.
Furthermore, a flange is fixed at the outer end of the orifice pipe, a flange is fixed at the bottom of the outer sleeve pipe, and the flange of the orifice pipe is detachably connected with the flange of the outer sleeve pipe through a bolt.
Furthermore, the pressure gauge is connected to the top of the outer sleeve through a buffer bent pipe.
Furthermore, the buffer elbow is detachably connected with the top of the outer sleeve through a first joint, and the first joint is a double-head internal thread joint; the end of the buffering elbow pipe connected with the outer sleeve pipe is provided with an external thread, the end of the outer sleeve pipe connected with the buffering elbow pipe is provided with an external thread, the external thread of the buffering elbow pipe is connected with the internal thread at one end of the first joint, and the external thread of the outer sleeve pipe is connected with the internal thread at the other end of the first joint.
Furthermore, flanges are respectively fixed at two ends of the flowmeter, the position, connected with the flowmeter, of the slurry conveying pipe is also fixed with the flanges, and the flanges of the flowmeter and the flanges of the slurry conveying pipe are detachably connected through bolts.
Further, the other end of the slurry conveying pipe and the high-pressure slurry injection pump are detachably connected through a second connector, the second connector is a double-end female connector, an external thread is arranged at the end of the slurry conveying pipe connected with the high-pressure slurry injection pump, an external thread is arranged at the end of the high-pressure slurry injection pump connected with the slurry conveying pipe, the external thread of the slurry conveying pipe is connected with the internal thread at one end of the second connector, and the external thread of the high-pressure slurry injection pump is connected with the internal thread at the other end of the second connector.
Furthermore, the outer sleeve is provided with a supporting plate, the supporting plate is positioned at the bottom of the flowmeter, and the supporting plate is fixedly connected with a base of the flowmeter.
The utility model discloses compare prior art's beneficial effect:
the utility model effectively avoids the problems of potential safety hazards such as troublesome mounting and dismounting procedures, easy fire hazard and even explosion during the grouting construction of subsection drilling or multi-coal-seam drilling, so that the grouting device is convenient, rapid and safe to mount and dismount, the engineering construction efficiency, accuracy and safety are improved, the working time is saved, and the construction period pressure is relieved; the grouting device realizes repeated utilization, and is energy-saving and environment-friendly; the single-hole grouting amount can be controlled more accurately, and the engineering quality is effectively improved.
Drawings
Fig. 1 is a schematic structural view of the present invention;
in the figure: the device comprises a base, a support plate, a slurry inlet pipe, a slurry outlet pipe, a buffer elbow pipe, a first joint, a second joint, a.
Detailed Description
The embodiments of the present invention will be further explained with reference to the accompanying drawings:
referring to fig. 1, the utility model provides a multi-functional slip casting hole packer for multi-coal seam goaf treatment engineering, which comprises an outer sleeve 1, a slip casting pipe 2, a slurry conveying pipe 3, a flowmeter 4 and a pressure gauge 5;
the top of the outer sleeve 1 is provided with a pressure gauge 5, and the pressure gauge 5 is detachably communicated with the outer sleeve 1;
a grout conveying pipe 3 is arranged on the outer sleeve 1, one end of the grout conveying pipe 3 is communicated with a grouting pipe 2, and the grouting pipe 2 is positioned in the outer sleeve 1; the other end of the slurry conveying pipe 3 is detachably connected with a high-pressure grouting pump 6, and the high-pressure grouting pump 6 is communicated with a slurry storage box 10 through a pipeline; the slurry conveying pipe 3 is provided with a flowmeter 4, the flowmeter 4 is detachably communicated with the slurry conveying pipe 3, the flowmeter 4 is provided with a power supply port 4.1 and an output port 4.2, and the output port 4.2 is communicated with a computer.
Be equipped with the pipeline in the drilling of many coal seams collecting space area, the outer end of pipeline is equipped with orifice pipe 11, and the bottom and the orifice pipe 11 of outer tube 1 can be dismantled and be connected, be convenient for installation and dismantlement.
A flange is fixed at the outer end of the orifice pipe 11, a flange is fixed at the bottom of the outer sleeve 1, and the flange of the orifice pipe 11 is detachably connected with the flange of the outer sleeve 1 through bolts.
The pressure gauge 5 is connected to the top of the outer sleeve 1 through a buffer bent pipe 7, and the buffer bent pipe is used for protecting the pressure gauge 5.
The buffering bent pipe 7 is detachably connected with the top of the outer sleeve 1 through a first joint 8, and the first joint 8 is a double-end internal thread joint; the end of the buffering bent pipe 7 connected with the outer sleeve 1 is provided with an external thread, the end of the outer sleeve 1 connected with the buffering bent pipe 7 is provided with an external thread, the external thread of the buffering bent pipe 7 is connected with the internal thread at one end of the first joint 8, the external thread of the outer sleeve 1 is connected with the internal thread at the other end of the first joint 8, in the grouting process, if the cavity height of a goaf is larger than 1m or the flow rate of underground water is larger than 200m/h, the buffering bent pipe 7 is detached from the outer sleeve 1, then a funnel is installed, gravel, stone chips, slag and other fine aggregates with the diameter smaller than 5mm are filled into the funnel, when the hole is large, slurry filling cost is completely too high, and therefore some low-cost fine aggregates are added, on one hand, the filling material cost per unit volume is reduced, on the other hand.
The two ends of the flow meter 4 are respectively fixed with a flange, the position of the slurry conveying pipe 3 connected with the flow meter 4 is also fixed with a flange, and the flange of the flow meter 4 is detachably connected with the flange of the slurry conveying pipe 3 through bolts, so that the flow meter is convenient to move and replace.
The other end of defeated thick liquid pipe 3 and high-pressure grouting pump 6 connect 9 through the second and can dismantle and be connected, the second connects 9 and is double-end female connection, the end of defeated thick liquid pipe 3 of being connected with high-pressure grouting pump 6 is equipped with the external screw thread, the end of high-pressure grouting pump 6 of being connected with defeated thick liquid pipe 3 is equipped with the external screw thread, the external screw thread of defeated thick liquid pipe 3 and the female connection of second joint 9 one end, the external screw thread of high-pressure grouting pump 6 and the female connection of the second joint 9 other end.
Be equipped with backup pad 12 on outer tube 1, backup pad 12 is located the bottom of flowmeter 4, and backup pad 12 and flowmeter 4's base fixed connection, backup pad 12 provide stable support for flowmeter 4.
The flowmeter 4 outputs the real-time flow to a computer connected with an output port of the flowmeter 4, and the computer calculates the grouting amount according to the real-time flow data and the grouting time.
The utility model discloses an application example:
1. welding a flange at the outer end of the orifice pipe: after the coal seam drilling treatment is finished, pouring is finished by pure cement slurry liquid, and then welding a flange at the outer end of the buried orifice pipe 11;
2. and (3) quick grouting: after the monitoring permission grouting construction is obtained, a grouting pipe 2 of a grouting device is stretched into an orifice pipe 11, a flow meter 4 and a high-pressure grouting pump 6 are started, grouting is rapidly carried out in the orifice pipe 11, when a computer connected with an output port of the flow meter 4 prompts that the grouting amount reaches 90% of a design value, the high-pressure grouting pump 6 is closed to stop rapid grouting, and the remaining 10% of the grouting amount is finished in the pressurizing process;
3. and (3) pressing and grouting: the flange at the bottom of the outer sleeve 1 is hermetically connected with the flange of the orifice pipe 11 by using bolts, the flowmeter 4 and the high-pressure grouting pump 6 are started, the unit grouting amount is less than 70L/min for grouting, the remaining 10 percent of grouting amount is completely injected during grouting until the pressure is 2.0-3.0 MPa, the high-pressure grouting pump 6 is closed for grouting for more than 15min, the grouting amount is not less than 10 percent of the design value, and then the grouting is finished;
4. removing the grouting device: after the supervision and acceptance of the final hole permission, the outer sleeve 1 and the orifice pipe 11 of the grouting device are dismantled;
5. grouting for drilling of the next coal seam: and (4) when the drilling construction condition of the next coal seam is met, moving the grouting device to the orifice pipe of the next coal seam, and repeating the steps 1-4.
The utility model effectively avoids the problems of potential safety hazards such as troublesome mounting and dismounting procedures, easy fire hazard and even explosion during the grouting construction of subsection drilling or multi-coal-seam drilling, so that the grouting device is convenient, rapid and safe to mount and dismount, the engineering construction efficiency, accuracy and safety are improved, the working time is saved, and the construction period pressure is relieved; the grouting device realizes repeated utilization, and is energy-saving and environment-friendly; the single-hole grouting amount can be controlled more accurately, and the engineering quality is effectively improved.
Claims (8)
1. The utility model provides a multi-functional slip casting hole packer is used in many coal seams collecting space area punishment engineering which characterized in that: comprises an outer sleeve (1), a grouting pipe (2), a slurry conveying pipe (3), a flowmeter (4) and a pressure gauge (5);
the top of the outer sleeve (1) is provided with a pressure gauge (5), and the pressure gauge (5) is detachably communicated with the outer sleeve (1);
a grout conveying pipe (3) is arranged on the outer sleeve (1), one end of the grout conveying pipe (3) is communicated with the grouting pipe (2), and the grouting pipe (2) is positioned in the outer sleeve (1); the other end of the slurry conveying pipe (3) is detachably connected with a high-pressure grouting pump (6), and the high-pressure grouting pump (6) is communicated with a slurry storage box (10) through a pipeline; the slurry conveying pipe (3) is provided with a flowmeter (4), the flowmeter (4) is detachably communicated with the slurry conveying pipe (3), the flowmeter (4) is provided with a power supply port (4.1) and an output port (4.2), and the output port (4.2) is communicated with a computer.
2. The multifunctional grouting hole packer for multi-coal-seam goaf treatment engineering according to claim 1, characterized in that: be equipped with the pipeline in the drilling of many coal seams collecting space area, the outer end of pipeline is equipped with orifice pipe (11), and the bottom and the orifice pipe (11) of outer tube (1) can be dismantled and be connected.
3. The multifunctional grouting hole packer for multi-coal-seam goaf treatment engineering according to claim 2, characterized in that: the outer end of the orifice pipe (11) is fixed with a flange, the bottom of the outer sleeve (1) is fixed with a flange, and the flange of the orifice pipe (11) is detachably connected with the flange of the outer sleeve (1) through a bolt.
4. The multifunctional grouting hole packer for multi-coal-seam goaf treatment engineering according to claim 1, 2 or 3, wherein: the pressure gauge (5) is connected to the top of the outer sleeve (1) through a buffer bent pipe (7).
5. The multifunctional grouting hole packer for multi-coal-seam goaf treatment engineering according to claim 4, characterized in that: the buffering bent pipe (7) is detachably connected with the top of the outer sleeve (1) through a first joint (8), and the first joint (8) is a double-end internal thread joint; the end of the buffering elbow pipe (7) connected with the outer sleeve pipe (1) is provided with an external thread, the end of the outer sleeve pipe (1) connected with the buffering elbow pipe (7) is provided with an external thread, the external thread of the buffering elbow pipe (7) is connected with the internal thread of one end of the first joint (8), and the external thread of the outer sleeve pipe (1) is connected with the internal thread of the other end of the first joint (8).
6. The multifunctional grouting hole packer for multi-coal-seam goaf treatment engineering according to claim 5, characterized in that: flanges are respectively fixed at two ends of the flowmeter (4), the position, connected with the flowmeter (4), of the slurry conveying pipe (3) is also fixed with the flanges, and the flanges of the flowmeter (4) and the flanges of the slurry conveying pipe (3) are detachably connected through bolts.
7. The multifunctional grouting hole packer for multi-coal-seam goaf treatment engineering according to claim 6, characterized in that: the other end of defeated thick liquid pipe (3) and high-pressure grouting pump (6) connect (9) through the second and can dismantle the connection, second joint (9) are double-end female connection, the end of defeated thick liquid pipe (3) of being connected with high-pressure grouting pump (6) is equipped with the external screw thread, the end of high-pressure grouting pump (6) of being connected with defeated thick liquid pipe (3) is equipped with the external screw thread, the internal thread connection of the external screw thread of defeated thick liquid pipe (3) and second joint (9) one end, the external screw thread of high-pressure grouting pump (6) and the internal thread connection of the second joint (9) other end.
8. The multifunctional grouting hole packer for multi-coal-seam goaf treatment engineering according to claim 7, characterized in that: the outer sleeve (1) is provided with a support plate (12), the support plate (12) is positioned at the bottom of the flowmeter (4), and the support plate (12) is fixedly connected with the base of the flowmeter (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020034539.XU CN211773678U (en) | 2020-01-08 | 2020-01-08 | Multi-functional slip casting hole packer is used in many coal seams collecting space area punishment engineering |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020034539.XU CN211773678U (en) | 2020-01-08 | 2020-01-08 | Multi-functional slip casting hole packer is used in many coal seams collecting space area punishment engineering |
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| CN211773678U true CN211773678U (en) | 2020-10-27 |
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| CN202020034539.XU Active CN211773678U (en) | 2020-01-08 | 2020-01-08 | Multi-functional slip casting hole packer is used in many coal seams collecting space area punishment engineering |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459744A (en) * | 2020-11-25 | 2021-03-09 | 安徽铜冠（庐江）矿业有限公司 | Hole sealing system and hole sealing method for geological prospecting drill hole |
| CN112679149A (en) * | 2020-12-25 | 2021-04-20 | 西安科技大学 | Deep mine heat storage cement mortar preparation and vertical solidification-prevention slurry conveying system and method |
-
2020
- 2020-01-08 CN CN202020034539.XU patent/CN211773678U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112459744A (en) * | 2020-11-25 | 2021-03-09 | 安徽铜冠（庐江）矿业有限公司 | Hole sealing system and hole sealing method for geological prospecting drill hole |
| CN112679149A (en) * | 2020-12-25 | 2021-04-20 | 西安科技大学 | Deep mine heat storage cement mortar preparation and vertical solidification-prevention slurry conveying system and method |
| CN112679149B (en) * | 2020-12-25 | 2022-01-28 | 西安科技大学 | Deep mine heat storage cement mortar preparation and vertical solidification-prevention slurry conveying system and method |
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