CN211549674U - Multifunctional automatic drilling hole diameter compensation device for monitoring large-diameter drilling hole deformation - Google Patents
Multifunctional automatic drilling hole diameter compensation device for monitoring large-diameter drilling hole deformation Download PDFInfo
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- CN211549674U CN211549674U CN201922309552.1U CN201922309552U CN211549674U CN 211549674 U CN211549674 U CN 211549674U CN 201922309552 U CN201922309552 U CN 201922309552U CN 211549674 U CN211549674 U CN 211549674U
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Abstract
The utility model discloses a multi-functional major diameter drilling deformation monitoring is with drilling aperture automatic compensation device relates to colliery deep mining monitoring facilities field, contains tray frame, foaming rubber container, foaming inclusion, foaming switch and switch drive power transmission pipeline, the fixed front end that sets up tray frame in the major diameter drilling of drilling deformation response oil bag, the fixed foaming rubber container that sets up in the rear end of tray frame, the foaming inclusion passes through the foaming switch intercommunication with the foaming rubber container, the foaming switch is connected with switch power transmission pipeline, provides power through outside power supply and opens, the foaming rubber in the foaming rubber container fills through the foaming inclusion drilling deformation response oil bag and the space between the major diameter drilling inner wall. The utility model discloses can be used for being more than or equal to phi 110mm so that phi 200 mm's major diameter pressure release hole deformation monitoring, still can be used to coal seam gas drainage hole sealing, drilling pressure measurement shutoff, be one kind and possess multi-functional drilling aperture automatic compensation device.
Description
Technical Field
The utility model relates to a colliery deep mining on-the-spot monitoring facilities field, specific multi-functional major diameter drilling deformation monitoring is with drilling aperture automatic compensation device that says so.
Background
With the gradual reduction of shallow coal resource reserves, the coal mining depth is continuously increased, and the maximum mining depth of the coal mine mined by over kilometers is close to 1500m at present. Along with the continuous increase of mining depth and the continuous increase of mining intensity, the underground stress environment is greatly changed, and the mine pressure is increased. When the stress and the deformation of the coal rock body are inconsistent, strong coal rock dynamic disasters such as mine earthquake, rock burst and the like are easily induced. Rock burst also becomes one of the most serious dynamic disasters faced by coal mines in China.
The rock burst is essentially caused by sudden release of a large amount of elastic energy, so that the rock burst has important practical application value for monitoring and researching roadway surrounding rock stress and deformation as an important means for guaranteeing safe mining. The method has the advantages that a large number of large-diameter pressure relief drill holes are required to be constructed in the rock burst mine, and the measurement and monitoring of the deformation of the drill holes by using the large-diameter pressure relief drill holes are effective means for carrying out strain and creep type impact early warning, and have important significance for the safety production of coal mines.
A currently adopted KJ875 coal mine drilling deformation monitoring system firstly uses a drill bit with the diameter of phi 110mm to drill a hole on a coal wall of a roadway to be monitored or uses a drill bit with the diameter of phi 110mm to perform pressure relief drilling, and the depth of the hole is 8-25 meters; the diameter phi of the drilling deformation induction oil sac is 95mm, the volume is 2.2L, and the drilling deformation induction oil sac is inflated by injecting hydraulic oil and fully contacts with a coal bed. During installation, the drilling deformation induction oil bag is sent into a large-diameter pressure relief drilling hole to be monitored by the push rod, and the oil outlet of the oil bag and the oil inlet of the liquid storage barrel are required to be adjusted and kept on the same horizontal plane. The elastic modulus of the drilling deformation induction oil bag is smaller than that of a coal bed, the strain is superior to that of the coal bed, the measurement is convenient, and the oil bag oil return rubber pipe has moderate pressure bearing capacity and can be used for strain monitoring.
After the drill hole is deformed, the coal seam extrudes the drill hole deformation induction oil bag to deform the oil bag, liquid is discharged into the liquid storage barrel from an oil outlet of the drill hole deformation induction oil bag through an oil bag oil return rubber pipe, a GZY720 mine-used intrinsic safety type drill hole deformation liquid level sensor installed at the bottom of the liquid storage barrel measures the pressure at the bottom of the container at the moment, the change of the liquid level in the container can be reflected through the pressure change, the volume of the discharged liquid is obtained, and the hole diameter deformation is inversely calculated to obtain the drill hole deformation rate. By adopting a network transmission technology, underground monitoring data can be transmitted to a monitoring platform of a ground monitoring room in real time through a communication cable. Through the monitoring platform, the aperture deformation can be displayed in real time, and monitoring data and data change curves can be inquired.
The currently used phi 95mm drilling hole deformation sensing oil sac can only be used for monitoring drilling hole deformation below phi 110mm, and the monitoring range is relatively small. And then, the drilling monitoring of the large aperture needs to manufacture a larger drilling deformation induction oil sac again, so that the cost of manufacturing cost of the oil sac mould is increased.
In addition, the existing coal bed gas drainage hole sealing and drilling pressure measurement plugging adopt a bi-component hole sealing bag made of A, B materials, and have the disadvantages of complex structure, high price, inconvenient use and low hole sealing efficiency.
Disclosure of Invention
For solving the technical problem that above-mentioned exists, the utility model provides a drilling aperture automatic compensation device is used in monitoring of major diameter drilling deformation can be used for > phi 110mm so that the deformation monitoring of phi 200 mm's major diameter pressure release hole, need not to make bigger drilling deformation response oil pocket in addition, has practiced thrift oil pocket mould manufacturing cost, has expanded monitoring range, easily promotes, convenient to use to the device still has the function of coal seam gas drainage hole sealing, drilling shutoff pressure measurement.
The utility model provides a technical scheme that its technical problem adopted is:
the utility model provides a multi-functional major diameter drilling deformation monitoring is with drilling aperture automatic compensation device, includes tray frame, foaming rubber container, foaming inclusion, foaming switch and switch drive power transmission pipeline, drilling deformation response oil bag is fixed to be set up in the front end of tray frame in the major diameter drilling, the fixed foaming rubber container that sets up in the rear end of tray frame, the foaming inclusion passes through the foaming switch intercommunication with the foaming rubber container, the foaming switch is connected with switch drive power transmission pipeline, provides power through external power source and opens, the foaming rubber in the foaming rubber container is filled through the foaming inclusion drilling deformation response oil bag and the space between the major diameter drilling inner wall.
The foaming inclusion is set as a woven bag.
The external power source is set to be a compressed air power source or a hydraulic power source, the switch driving power transmission pipeline is set to be an air inlet hose or a hydraulic hose, and the external power source is connected with the switch driving power transmission pipeline through a mining KJ quick coupling.
The utility model discloses the structure is ingenious, fill the space between pressure release drilling inner wall and the phi 95mm drilling deformation response oil bag through the foamed rubber, realize automatic compensation to the aperture of different drilling, so that it satisfies the condition that keeps abundant contact between drilling inner wall and the drilling deformation response oil bag, the deformation monitoring of having realized the major diameter pressure release drilling of diameter > phi 110mm to phi 200mm also can adopt current drilling deformation response oil bag, the monitoring range of phi 95mm drilling deformation response oil bag has been expanded, the manufacturing cost of oil bag mould has been practiced thrift, monitoring coal seam deformation through major diameter drilling or pressure release hole when being convenient for the colliery deep exploitation, it is the effective means of developing the early warning of meeting an emergency, creep type impact, have important meaning to coal mine safety in production; the device still can be used to coal seam gas drainage hole sealing, drilling pressure measurement shutoff, the foaming glue only has a component, has simple structure, low in cost, convenient to use, a great deal of advantage such as shutoff effect is obvious, has actual spreading value.
Drawings
Fig. 1 is a first schematic structural diagram (monitoring borehole deformation) of the present invention;
FIG. 2 is a second schematic structural diagram (for hole sealing) of the present invention;
FIG. 3 is a schematic structural view of the present invention applied to monitoring borehole deformation;
FIG. 4 is a schematic diagram of the present invention applied to monitoring borehole deformation;
FIG. 5 is a schematic structural view of the present invention applied to hole sealing;
fig. 6 is a schematic diagram of the present invention applied to hole sealing.
Detailed Description
The invention is described in detail below with reference to the following figures and specific embodiments:
as shown in fig. 1 and 2, a multi-functional major diameter drilling aperture automatic compensation device for monitoring deformation includes tray frame 6, foaming rubber container 8, foaming inclusion 7, foaming switch 9 and switch drive power transmission pipeline 17, drilling deformation response oil bag 5 is fixed to be set up in the front end of tray frame 6 in major diameter drilling 4, the fixed foaming rubber container 8 that sets up in rear end of tray frame 6, foaming inclusion 7 and foaming rubber container 8 are through foaming switch 9 intercommunication, foaming switch 9 moves power transmission pipeline 17 with the switch and is connected, provides power through external power source 18 and opens, the foaming rubber in the foaming rubber container 8 fills through foaming inclusion 7 space between drilling deformation response oil bag 5 and the 4 inner walls of major diameter drilling.
As a preferable mode, the foaming inclusion 7 is set to be a woven bag, the size can be customized according to different pore diameters, the price is low, and the large-scale production is facilitated.
Preferably, the external power source 18 is set as a compressed air power source or a hydraulic power source, the switch driving power transmission line 17 is set as an air inlet hose or a hydraulic hose, and the external power source 18 and the switch driving power transmission line 17 are connected through the KJ quick coupling 16 for mining. The compressed air power source may be a down-hole air compressor, and the hydraulic power source may be a hydraulic pump.
As an embodiment, the specific implementation process of the present invention is as shown in fig. 3 and fig. 4, firstly, a drill bit with a diameter of phi 110mm or more is used to drill a hole on the coal wall 2 of the roadway 1 to be monitored or a phi 120 mm-phi 200 large-diameter pressure relief drill hole 4 with a hole depth of 8-25 m is used; will with electric oil pump in advance the utility model discloses drilling deformation response oil pocket and oil pocket return rubber tube are filled with hydraulic oil to make oil pocket and coal seam fully contact, must seal the oil inlet well before the installation in the transportation.
During installation, a push rod is inserted into an installation sleeve at the front end of the tray frame 6 to send the tray frame 6, the oil bag 5, the foaming rubber container 2, the foaming inclusion body 7 and the foaming switch 9 which are fixed on the tray frame into the large-diameter pressure relief drilling hole 4 to be monitored. A foaming switch 9 is arranged on the foaming rubber container 2, the foaming switch 9 is connected with a switch driving power transmission pipeline 17, and if an underground air compressor is adopted as an external power source 18, the switch driving power transmission pipeline 17 is arranged as an air inlet hose; if a hydraulic pump is used as the external power source 18, the switch-driven power transmission line 17 is provided as a hydraulic hose.
And opening oil sealing ports of the oil bag and an oil return rubber pipe of the oil bag, and adjusting the height of an oil outlet of the oil bag 5 and an oil inlet of the liquid storage barrel 14 to keep the oil outlet and the oil inlet on the same horizontal plane. The elastic modulus of the induction oil bag 5 in the hole is smaller than that of the coal bed 3, the strain is better than that of the coal bed 3, the measurement is convenient, and the pressure bearing capacity of the oil bag oil return rubber pipe 15 is moderate and can be used for strain monitoring.
Start the utility model discloses, open external power source 18, foaming switch 9 opens foaming glue container 2 under power drive, and the foaming glue gets into in the foaming inclusion 7, fills fast space between drilling deformation response oil bag 5 and the 4 inner walls of major diameter pressure release drilling satisfies the monitoring condition of abundant contact between 4 inner walls of major diameter pressure release drilling and the drilling deformation response oil bag 5, carries out automatic compensation to the aperture that is suitable for in the drilling deformation response oil bag 5 application, need not to change the drilling deformation response oil bag 5 of different diameters according to the size in aperture, has reduced the cost of preparation oil bag, has expanded the monitoring range of drilling deformation response oil bag 5.
After the large-diameter pressure relief drill hole 4 deforms, the coal seam 3 extrudes the drill hole deformation induction oil bag 5 to deform the oil bag, liquid is discharged into the liquid storage barrel 14 from an oil outlet of the drill hole deformation induction oil bag 5 through the oil bag oil return rubber pipe 15, the GZY720 mine intrinsic safety type drill hole deformation liquid level sensor 11 installed at the bottom of the liquid storage barrel 14 measures the pressure at the bottom of the liquid storage barrel 14 at the moment, the change of the liquid level in the liquid storage barrel 14 can be reflected through the pressure change, the volume of the discharged liquid is obtained, and the hole diameter deformation is inversely calculated to obtain the drill hole deformation rate.
By adopting a network transmission technology, underground monitoring data can be transmitted to a monitoring platform of a ground monitoring room in real time through the communication cable 10. Through the monitoring platform, the aperture deformation can be displayed in real time, and monitoring data and data change curves can be inquired.
As another embodiment of the utility model, as shown in fig. 5 and fig. 6, the device still can be used to be used for coal seam gas drainage hole sealing, drilling pressure measurement shutoff, includes tray frame 6, foaming rubber container 8, foaming inclusion 7, foaming switch 9 and switch drive power transmission pipeline 17, tray frame 6's rear end is fixed to be set up foaming rubber container 8, foaming inclusion 7 and foaming rubber container 8 pass through foaming switch 9 intercommunication, foaming switch 9 is connected with switch drive power transmission pipeline 17, provides power through external power source 18 and opens, the foaming rubber in the foaming rubber container 8 fills through foaming inclusion 7 coal seam gas drainage hole 41 or pressure measurement drilling hole 41 and the space between the coal seam 31, as the usefulness of hole sealing.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (3)
1. A multifunctional drilling hole aperture automatic compensation device for monitoring large-diameter drilling hole deformation is characterized by comprising a tray frame (6), a foaming rubber container (8), a foaming inclusion body (7), a foaming switch (9) and a switch driving power transmission pipeline (17), the drilling deformation induction oil bag (5) is fixedly arranged at the front section of the tray frame (6) in the large-diameter drilling hole (4), the upper rear section of the tray frame (6) is fixedly provided with a foaming glue container (8), the foaming inclusion body (7) is communicated with the foaming glue container (8) through a foaming switch (9), the foaming switch (9) is connected with a switch driving power transmission pipeline (17), the drilling hole deformation induction oil bag is opened by providing power through an external power source (18), and the foaming glue in the foaming glue container (8) fills a gap between the drilling hole deformation induction oil bag (5) and the inner wall of the large-diameter drilling hole (4) through the foaming inclusion (7).
2. The multifunctional large-diameter drilling hole diameter automatic compensation device for monitoring deformation according to claim 1, wherein the foaming inclusion body (7) is arranged as a woven bag.
3. The multifunctional large-diameter drilling hole diameter automatic compensation device for monitoring deformation according to claim 1, wherein the external power source (18) is set to be a compressed air power source or a hydraulic power source, the switch driving power transmission pipeline (17) is set to be an air inlet hose or a hydraulic hose, and the external power source (18) and the switch driving power transmission pipeline (17) are connected through a KJ quick coupling (16) for the mine.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922309552.1U CN211549674U (en) | 2019-12-20 | 2019-12-20 | Multifunctional automatic drilling hole diameter compensation device for monitoring large-diameter drilling hole deformation |
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| CN201922309552.1U CN211549674U (en) | 2019-12-20 | 2019-12-20 | Multifunctional automatic drilling hole diameter compensation device for monitoring large-diameter drilling hole deformation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821482A (en) * | 2019-12-20 | 2020-02-21 | 山东思科赛德矿业安全工程有限公司 | Multifunctional automatic drilling hole diameter compensation device for monitoring large-diameter drilling hole deformation |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110821482A (en) * | 2019-12-20 | 2020-02-21 | 山东思科赛德矿业安全工程有限公司 | Multifunctional automatic drilling hole diameter compensation device for monitoring large-diameter drilling hole deformation |
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