CN202627967U - Multistage hydraulic punching drill - Google Patents
Multistage hydraulic punching drill Download PDFInfo
- Publication number
- CN202627967U CN202627967U CN 201220250187 CN201220250187U CN202627967U CN 202627967 U CN202627967 U CN 202627967U CN 201220250187 CN201220250187 CN 201220250187 CN 201220250187 U CN201220250187 U CN 201220250187U CN 202627967 U CN202627967 U CN 202627967U
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- China
- Prior art keywords
- jet
- drilling rod
- drill
- ejector
- netted pallet
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- Expired - Fee Related
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Abstract
The utility model discloses a multistage hydraulic punching drill. At least two symmetrical jet flow nozzles are arranged on a jet flow drill bit which is arranged on the headmost side of a drill rod, and are communicated with an inner cavity water channel; at least one mechanical drill bit is arranged on the drill rod on the lower side of the jet flow drill bit; net-shaped trays are vertically fixed on the drill rod on the lower sides of the mechanical drill bits; jet devices are fixed on the drill rod on the lower sides of the net-shaped trays, and comprise at least two jet flow nozzles parallel to the drill rod; and the jet flow nozzles are opposite to meshes of the net-shaped trays. Due to the adoption of a multistage crushing and multistage punching technology, a tray is arranged at the bottom of the drill rod to ensure that caved coal bodies are temporarily stored, so that the phenomenon of stockpiling of the coal bodies due to a downward continuous caving process is prevented. The coal bodies which are temporarily stored are continuously crushed through the jet devices which are arranged in parallel below the trays, and coal slurry continuously flows out downwards along the periphery of the trays or from the meshes of the trays, so that gas can continuously and uniformly flows out, and the defect of redundancy of the gas is overcome.
Description
Technical field
The utility model relates to field, a kind of colliery drilling tool, and particularly a kind of multi-stage water power punching is bored.
Background technology
Hydraulic flushing in hole is mainly used in the boring of top, coal seam, and hydraulic flushing in hole is the important technology that increases coal-bed gas gas permeability, release, elimination outburst hazard, still; Present drilling rod and punching drill bit structure are simple, only at the drill bit position one group of jet nozzle are installed, if cherry coal; When water jet isolated coal body, a large amount of coal bodies were striden and are fallen in the boring, cause plug-hole easily; Because run of steel is big, causes the drilling rod stuck phenomenon easily; If than hard coal matter or dirt band, coal cinder that water jet isolates or spoil piece are difficult for fragmentation, cause plug-hole.To the dead situation of pipe becoming stuck, present processing mode is to strengthen hydraulic pressure, make pressure in the boring greater than the external world being that blocking portion is dredged.The boring of existing waterpower drilling rod is easily because of the coal cinder shutoff bore that drops diminishes, and often internal pressure is greater than external pressure.Strengthen hydraulic pressure in the boring and have great risk,, coal and gas spray orifice phenomenon occur, cause gas exceeding limit, increased risk, be unfavorable for the gas management when hydraulic pressure reaches threshold.
The utility model content
The purpose of the utility model is to bore exist simple in structure to existing water conservancy punching at present, causes coal body to collapse falling problems such as obstruction boring easily, provides a kind of rational in infrastructure, and result of use is good, and the multi-stage water power punching that boring can not occur stopping up is bored.
Technical scheme: a kind of multi-stage water power punching is bored; Comprise drilling rod; Drill bit and jet mouth, drilling rod inner chamber are aquaporin, and the flow jet flow drill of the installed in front of drilling rod is provided with at least two symmetrical jet mouths; Jet nozzle is communicated with the inner chamber aquaporin, and the angle scope is 30 °≤α≤60 ° between the jet mouth of symmetry; At least one mechanical drill on the drilling rod below the flow jet flow drill; Vertical fixing has netted pallet on the drilling rod below the mechanical drill; The external diameter of netted pallet and each outside diameter approximately equal; On the drilling rod below the netted pallet, be fixed with ejector, this ejector contains at least two jet mouths parallel with drilling rod, and said jet mouth is over against the mesh of netted pallet.
A netted pallet at least vertically is installed on the drilling rod below the said ejector, is fixed with an ejector on the drilling rod of each netted pallet below, each ejector contains at least two parallel jet mouths, and said jet mouth is over against the mesh of netted pallet.
On the drilling rod between the adjacent netted pallet, a mechanical drill is installed at least.
Said ejector is a drill bit formula ejector, promptly in mechanical drill, sets out aquaporin, on drill bit, is symmetrically arranged with weep hole, and the jet mouth parallel with drilling rod is installed on each weep hole, and exhalant canal is communicated with drilling rod inner chamber aquaporin.
Said ejector comprises support and jet mouth, and the jet mouth is fixed on the support, and the jet mouth is communicated with drilling rod inner chamber aquaporin through water-supply-pipe.
Beneficial effect: the utility model adopts multiple stage crushing, and multistage punching technology is installed three drill bits on the first bar drill bar, and the jet mouth jet of first drill bit breaks coal, second, third drill bit Mechanical Crushing coal body; Can fully carry out fragmentation to coal cinder in the boring.At drilling rod bottom, tray, the coal breakage body that will collapse is stored in a warehouse temporarily, suppresses that coal body continues to collapse downwards and the generation of hoarding situation.The jet nozzle that is parallel to drilling rod is installed in bottom at pallet; This jet continues broken to entrepot coal storage body; The jet nozzle of tray bottom can carry out fragmentation and dilution to the coal cinder on the pallet, makes it along lasting outflow the in pallet periphery or the pallet mesh downwards, thereby gas is evenly gushed out continuously; Overcome the appearance of the situation of gas exceeding limit, prevented the outstanding generation that waits danger of gas.
Description of drawings
Fig. 1 is the surface structure sketch map that the punching of the utility model multi-stage water power is bored;
Fig. 2 is the local structure for amplifying sketch map of Fig. 1;
Fig. 3 is the cross-sectional view of flow jet flow drill among Fig. 1;
Fig. 4 is the another kind of structural representation that the punching of the utility model multi-stage water power is bored.
The specific embodiment
Embodiment one: referring to Fig. 1-Fig. 3; A kind of multi-stage water power punching is bored; In the front side of drilling rod 1 (promptly topmost) flow jet flow drill 2 is installed, this flow jet flow drill 2 is provided with the jet mouth 5 of the one-tenth angle of two symmetries, and flow jet flow drill 2 set inside have exhalant canal 21; Jet nozzle 5 is communicated with exhalant canal 21, and the angle scope is 30 °≤α≤60 ° between the jet mouth of symmetry.
Two mechanical drills 3 (common drill bit) have been installed on the drilling rod below the flow jet flow drill 21 successively at interval; Vertical fixing has netted pallet 7 on the drilling rod below the mechanical drill 31, and the external diameter of netted pallet 7 and each outside diameter approximately equal are fixed with ejector on the drilling rod 1 below the netted pallet 7; This ejector is a drill bit formula ejector 4; Promptly in mechanical drill, set out aquaporin, on drill bit, be symmetrically arranged with weep hole, the jet mouth 6 parallel with drilling rod is installed on each weep hole; Exhalant canal is communicated with drilling rod inner chamber aquaporin, and jet mouth 6 is over against the mesh of netted pallet 7.
Embodiment two: referring to Fig. 1-Fig. 3; On the basis of embodiment one; The one or more netted pallets 7 of vertical installation on the drilling rod 1 below the drill bit formula ejector 4; Be fixed with a drill bit formula ejector 4 on the drilling rod of each netted pallet 7 below, each drill bit formula ejector 4 contains at least two parallel jet mouths 6, and all jet mouths 6 are over against the mesh of the netted pallet 7 of its top.On the drilling rod 1 between the upper and lower netted pallet, be separately installed with one or two mechanical drill 3.
Embodiment three: referring to Fig. 4, content and embodiment one are basic identical, and something in common does not repeat, and different is: said ejector comprises support 8 and jet mouth 6, and jet mouth 6 is fixed on the support 8, and jet mouth 6 is communicated with drilling rod inner chamber exhalant canal through water-supply-pipe 9.
Claims (5)
1. a multi-stage water power punching is bored; Comprise drilling rod; Drill bit and jet mouth is characterized in that: the drilling rod inner chamber is an aquaporin, and the flow jet flow drill of the installed in front of drilling rod is provided with at least two symmetrical jet mouths; Jet nozzle is communicated with the inner chamber aquaporin, and the angle scope is 30 °≤α≤60 ° between the jet mouth of symmetry; At least one mechanical drill on the drilling rod below the flow jet flow drill; Vertical fixing has netted pallet on the drilling rod below the mechanical drill; The external diameter of netted pallet and each outside diameter approximately equal; On the drilling rod below the netted pallet, be fixed with ejector, this ejector contains at least two jet mouths parallel with drilling rod, and said jet mouth is over against the mesh of netted pallet.
2. multi-stage water power punching according to claim 1 is bored; It is characterized in that: a netted pallet at least vertically is installed on the drilling rod below the said ejector; Be fixed with an ejector on the drilling rod of each netted pallet below; Each ejector contains at least two parallel jet mouths, and said jet mouth is over against the mesh of netted pallet.
3. multi-stage water power punching according to claim 2 is bored, and it is characterized in that: on the drilling rod between the adjacent netted pallet, a mechanical drill is installed at least.
4. multi-stage water power punching according to claim 2 is bored; It is characterized in that: said ejector is a drill bit formula ejector; Promptly in mechanical drill, set out aquaporin; On drill bit, be symmetrically arranged with weep hole, the jet mouth parallel with drilling rod is installed on each weep hole, exhalant canal is communicated with drilling rod inner chamber aquaporin.
5. multi-stage water power punching according to claim 2 is bored, and it is characterized in that: said ejector comprises support and jet mouth, and the jet mouth is fixed on the support, and the jet mouth is communicated with drilling rod inner chamber aquaporin through water-supply-pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220250187 CN202627967U (en) | 2012-05-31 | 2012-05-31 | Multistage hydraulic punching drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220250187 CN202627967U (en) | 2012-05-31 | 2012-05-31 | Multistage hydraulic punching drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202627967U true CN202627967U (en) | 2012-12-26 |
Family
ID=47381175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220250187 Expired - Fee Related CN202627967U (en) | 2012-05-31 | 2012-05-31 | Multistage hydraulic punching drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202627967U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678048A (en) * | 2012-05-31 | 2012-09-19 | 河南理工大学 | Multi-stage hydraulic punching drill |
| CN109555481A (en) * | 2018-10-26 | 2019-04-02 | 山西晋煤集团技术研究院有限责任公司 | Hydraulic flushing in hole drilling three-level breaks coal anti-blockage holes device and method |
-
2012
- 2012-05-31 CN CN 201220250187 patent/CN202627967U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102678048A (en) * | 2012-05-31 | 2012-09-19 | 河南理工大学 | Multi-stage hydraulic punching drill |
| CN102678048B (en) * | 2012-05-31 | 2014-06-18 | 河南理工大学 | Multi-stage hydraulic punching drill |
| CN109555481A (en) * | 2018-10-26 | 2019-04-02 | 山西晋煤集团技术研究院有限责任公司 | Hydraulic flushing in hole drilling three-level breaks coal anti-blockage holes device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121226 Termination date: 20130531 |