CN102383738A - Method and device for improving deep hole forming rate of bedding layer of coal mine - Google Patents
Method and device for improving deep hole forming rate of bedding layer of coal mine Download PDFInfo
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- CN102383738A CN102383738A CN201110174716XA CN201110174716A CN102383738A CN 102383738 A CN102383738 A CN 102383738A CN 201110174716X A CN201110174716X A CN 201110174716XA CN 201110174716 A CN201110174716 A CN 201110174716A CN 102383738 A CN102383738 A CN 102383738A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000003245 coal Substances 0.000 title abstract description 7
- 238000005553 drilling Methods 0.000 claims abstract description 105
- 238000005452 bending Methods 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000005507 spraying Methods 0.000 abstract 1
- 239000007921 spray Substances 0.000 description 13
- 238000010276 construction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Abstract
The invention discloses a method for improving the deep hole forming rate of a bedding layer of a coal mine. In the method, a drill rod for drilling is processed into three segments with different outer diameters, wherein the outer diameter of the second segment of the drill rod is greater than that of the first segment of the drill rod, the diameter of the third segment of the drill rod is greater than that of the second segment of the drill rod, and a drillbit with corresponding size is mounted at the front end part of each segment of the drill rod; and the drill rod is used for carrying out the drilling operation on the bedding layer of the coal mine so as to improve the deep hole forming rate of the bedding layer of the coal mine. In the invention, the drill rod is processed into several segments with different outer diameters, and each segment of the drill rod is provided with a corresponding drillbit; as the drill rod is in a segmental structure and each segment of the drill rod is not long, the bending caused by gravity is tiny, coaxial drilling of the drillbit on each segment of the drill rod is ensured, and the drilling deflection and self dropping degree is greatly reduced; and moreover, as the segments of the drill rod have different outer diameters, the drill rod with small outer diameter drills before the drill rod with large outer diameter, and the orifice spraying phenomenon in the drilling process can be obviously eased.
Description
Technical field
The present invention relates to the method and the device of the operation of a kind of colliery, especially a kind ofly improve method and the device that coal mine deep hole becomes porosity.
Background technology
At present, coal industry to the colliery along layer when carrying out deep hole construction because the absolute offset values of drilling rod increases when creeping into, cause easily executing that boring passing the coal seam when boring, and do not reach desired depth.The deflection of boring, bow one's head that the change of drill bit drilling direction before this causes certainly, cause hole scattering or another factor of hanging down certainly is that the bending of back drilling rod produces the effect that curves, when drilling rod and bore diameter differ big, the effect that curves shows more obvious.When boring deflection occurs, when vertical, will can bring serious hidden danger to protrusion-dispelling work owing to boring blank tape do not occur according to the designing requirement construction.And present bore mode also the spray orifice phenomenon time occurs in boring easily, because spray orifice can bring potential safety hazard to production, therefore, construction except needs solve orientation, also need alleviate boring spray orifice degree along the layer depth hole.Spray orifice phenomenon when also having now some to be directed against boring and the technology developed, still, these technology all are to adopt to increase servicing unit and alleviate or suppress the spray orifice phenomenon, and the diameter of spray orifice phenomenon and drilling rod has direct relation.Adopt these servicing units not only to increase use cost, and can not fundamentally solve the above problems, also be difficult to simultaneously to guarantee the stability used, result of use is unsatisfactory, and operation is also very inconvenient.
Summary of the invention
The objective of the invention is: a kind of method and device that improves the colliery along layer depth hole one-tenth porosity is provided, and its directionality when boring is good, can prevent effectively that hole scattering from reaching from hanging down; And can effectively suppress spray orifice; And with low cost, easy to use, to overcome the deficiency of prior art.
The present invention is achieved in that and improves the colliery becomes porosity along the layer depth hole method; Boring drilling rod is processed as different 3 sections of external diameter; Make the external diameter of the external diameter of second section drilling rod greater than first section drilling rod, the diameter of the 3rd section drilling rod is greater than the diameter of second section drilling rod, and at the fore-end of every section drilling rod the drill bit of corresponding size is installed; Utilize this drilling rod that bore operation is carried out along layer in the colliery, to improve the one-tenth porosity of colliery along the layer depth hole.
Guide drill bit into for three grades, comprise elementary drilling rod, on the shaft of elementary drilling rod, be provided with line outside the spiral, be provided with elementary drill bit at the front end of elementary drilling rod; End at elementary drilling rod is connected with secondary drilling rod, on the shaft of secondary drilling rod, is provided with line outside the spiral, is provided with secondary drill bit in the front end outside of secondary drilling rod; End at secondary drilling rod is connected with the final stage drilling rod, on the shaft of final stage drilling rod, is provided with line outside the spiral, is provided with the final stage drill bit in the front end outside of final stage drilling rod; The external diameter of secondary drilling rod is greater than the external diameter of elementary drilling rod, and the external diameter of final stage drilling rod is greater than the external diameter of secondary drilling rod.
The diameter of elementary drilling rod is 20～25mm, and the diameter of secondary drilling rod is 40～45mm, and the diameter of final stage drilling rod is 48～52mm.
Length between elementary drilling rod, secondary drilling rod and the final stage drilling rod is than being 2:2:1.
Owing to adopted above-mentioned technical scheme, compared with prior art, the present invention's employing is processed as drilling rod several sections of various outer diameter; And on every section drilling rod, be equipped with corresponding drill bit; Because drilling rod adopted segmental structure, the length of each section drilling rod is not long, therefore crooked minimum by the gravity generation; Guarantee coaxial the creeping into of drill bit ability on each section drilling rod, greatly reduced hole scattering and the degree of hanging down certainly; Because the external diameter of each section drilling rod is different, utilize the drilling rod of little external diameter to creep into earlier after, creep into the drilling rod of big external diameter again, therefore can obviously reduce the generation of the spray orifice phenomenon in the boring procedure.Method of the present invention is simple, implements easily, and the device low preparation cost that is adopted, easy to use, effective.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
Embodiments of the invention: improve the colliery becomes porosity along the layer depth hole method; Boring drilling rod is processed as different 3 sections of external diameter; Make the external diameter of the external diameter of second section drilling rod greater than first section drilling rod, the diameter of the 3rd section drilling rod is greater than the diameter of second section drilling rod, and at the fore-end of every section drilling rod the drill bit of corresponding size is installed; Utilize this drilling rod that bore operation is carried out along layer in the colliery, to improve the one-tenth porosity of colliery along the layer depth hole.
Guide drill bit into for three grades, with an external diameter Φ
1For the drill finish bar of Ф 22mm is processed as the elementary drilling rod 1 that the surface has the outer line of spiral, and install threaded removable elementary drill bit 2 at the front end of elementary drilling rod 1; Adopt external diameter Φ again
2For the drill finish bar of 42mm is processed into the secondary drilling rod 3 that the surface has the outer line of spiral, the secondary drill bit 4 of burn-oning at the spiral interface place of the front end of secondary drilling rod 3 is with the terminal coaxial welding of the front end and the elementary drilling rod 1 of secondary drilling rod 3; Adopt conventional auger stem to make final stage drilling rod 5, go out final stage drill bit 6 in the welding, with the terminal coaxial welding of the front end and the secondary drilling rod 3 of final stage drilling rod 5 at the interface of final stage drilling rod 5 front ends; Length between elementary drilling rod 1, secondary drilling rod 3 and the final stage drilling rod 5 is than being 2:2:1.
The deflection of boring, bow one's head that the change of drill bit drilling direction before this causes certainly.The present invention has also just guaranteed the directional drilling of boring through guaranteeing the directional drilling of elementary drill bit 2.Drilling rod is processed into three sections, and boring is main leans on elementary drilling rod 1 to guide into, and then the drilling rod between two sections is not because length is not long, therefore by gravity produce crooked minimum, guaranteed that the coaxial of them creep into, greatly reduce hole scattering and vertical certainly degree.In addition, cause hole scattering or another factor of hanging down certainly is that the bending of back drilling rod produces the effect that curves.When drilling rod external diameter and boring internal diameter differed big, it was more obvious to curve the effect performance.For this reason, the present invention has also designed diameter secondary drill bit 4 and the final stage drill bit 6 approaching with boring, makes each section drilling rod be positioned not produce bending in the middle of the boring, thereby eliminates the effect that curves.The present invention can carry out directional drilling, prevents deflection, the generation of vertical phenomenon certainly.
Facts have proved that the slim hole ambient stress is concentrated less than large diameter borehole, the spray orifice degree is also obviously slight than large diameter borehole.Therefore, front end of the present invention generally is difficult for spray orifice when creeping into diameter, and follow-up is than big external diameter drill bit again behind the segment distance of being separated by, and this section boring this moment part has discharged geostatic stress and gas, thereby also is difficult for the generation spray orifice.
Can find out that through above 2 the present invention can effectively carry out directional drilling and the generation that suppresses the spray orifice phenomenon.According to actual conditions, can between the drill bit of front-end and back-end, increase transition diameter drill bit, also can adjust the distance between the drill bits at different levels, thereby can suppress the generation of spray orifice phenomenon targetedly.
Claims (4)
1. one kind is improved the colliery becomes porosity along the layer depth hole method; It is characterized in that: boring drilling rod is processed as different 3 sections of external diameter; Make the external diameter of the external diameter of second section drilling rod greater than first section drilling rod, the diameter of the 3rd section drilling rod is greater than the diameter of second section drilling rod, and at the fore-end of every section drilling rod the drill bit of corresponding size is installed; Utilize this drilling rod that bore operation is carried out along layer in the colliery, to improve the one-tenth porosity of colliery along the layer depth hole.
2. guide drill bit into for one kind three grades, comprise elementary drilling rod (1), it is characterized in that: on the shaft of elementary drilling rod (1), be provided with line outside the spiral, be provided with elementary drill bit (2) at the front end of elementary drilling rod (1); End at elementary drilling rod (1) is connected with secondary drilling rod (3), on the shaft of secondary drilling rod (3), is provided with line outside the spiral, is provided with secondary drill bit (4) in the front end outside of secondary drilling rod (3); End at secondary drilling rod (3) is connected with final stage drilling rod (5), on the shaft of final stage drilling rod (5), is provided with line outside the spiral, is provided with final stage drill bit (6) in the front end outside of final stage drilling rod (5); The external diameter of secondary drilling rod (3) is greater than the external diameter of elementary drilling rod (1), and the external diameter of final stage drilling rod (5) is greater than the external diameter of secondary drilling rod (3).
3. guide drill bit into, it is characterized in that for three grades according to claim 2: the diameter (Φ of elementary drilling rod (1)
1) be 20～25mm, the diameter (Φ of secondary drilling rod (3)
2) be 40～45mm, the diameter (Φ of final stage drilling rod (5)
3) be 48～52mm.
4. guide drill bit into, it is characterized in that for three grades according to claim 2: the length between elementary drilling rod (1), secondary drilling rod (3) and the final stage drilling rod (5) is than being 2:2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110174716XA CN102383738A (en) | 2011-06-27 | 2011-06-27 | Method and device for improving deep hole forming rate of bedding layer of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110174716XA CN102383738A (en) | 2011-06-27 | 2011-06-27 | Method and device for improving deep hole forming rate of bedding layer of coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102383738A true CN102383738A (en) | 2012-03-21 |
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ID=45823526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110174716XA Pending CN102383738A (en) | 2011-06-27 | 2011-06-27 | Method and device for improving deep hole forming rate of bedding layer of coal mine |
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| Country | Link |
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| CN (1) | CN102383738A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966306A (en) * | 2012-12-03 | 2013-03-13 | 山东大学 | System and operation method for drilling hole on hard rock in one attempt |
| CN109184590A (en) * | 2018-11-19 | 2019-01-11 | 河南理工大学 | A kind of deep well drilling method and device |
| CN110644923A (en) * | 2019-10-28 | 2020-01-03 | 煤科集团沈阳研究院有限公司 | A kind of large-diameter auger drilling equipment and method for coal mine |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2751848A1 (en) * | 1977-11-19 | 1979-05-23 | Ver Edelstahlwerke Ag | Rock drill stepped boring head - has cutting rings fitted onto stem, locked together by teeth on contact faces |
| CN2276079Y (en) * | 1996-09-25 | 1998-03-11 | 朱宝顺 | Three, four wing ladder type drilling tool |
| CN2611572Y (en) * | 2003-03-21 | 2004-04-14 | 袁啟法 | Combined rock drill |
| US20060013656A1 (en) * | 2004-07-13 | 2006-01-19 | Berkel & Company Contractors, Inc. | Full-displacement pressure grouted pile system and method |
| CN201062490Y (en) * | 2007-08-10 | 2008-05-21 | 石家庄中煤装备制造有限公司 | Anti-collapse highly effective combined drill |
| US20090274522A1 (en) * | 2007-01-08 | 2009-11-05 | Lei Yuhua | Piling machine with high-pressure jet spiral bit and its piling method |
| CN201627535U (en) * | 2010-03-05 | 2010-11-10 | 秦长江 | Secondary reaming drainage bit |
| CN201826304U (en) * | 2010-10-13 | 2011-05-11 | 武汉高铁桩工科技有限公司 | Cross section-variable threaded pile drill stem |
| CN102071876A (en) * | 2011-01-13 | 2011-05-25 | 河南理工大学 | Multistage reducing combined drilling tool |
| CN102199994A (en) * | 2011-01-13 | 2011-09-28 | 河南理工大学 | Multi-level variable-diameter drilling tool |
-
2011
- 2011-06-27 CN CN201110174716XA patent/CN102383738A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2751848A1 (en) * | 1977-11-19 | 1979-05-23 | Ver Edelstahlwerke Ag | Rock drill stepped boring head - has cutting rings fitted onto stem, locked together by teeth on contact faces |
| CN2276079Y (en) * | 1996-09-25 | 1998-03-11 | 朱宝顺 | Three, four wing ladder type drilling tool |
| CN2611572Y (en) * | 2003-03-21 | 2004-04-14 | 袁啟法 | Combined rock drill |
| US20060013656A1 (en) * | 2004-07-13 | 2006-01-19 | Berkel & Company Contractors, Inc. | Full-displacement pressure grouted pile system and method |
| US20090274522A1 (en) * | 2007-01-08 | 2009-11-05 | Lei Yuhua | Piling machine with high-pressure jet spiral bit and its piling method |
| CN201062490Y (en) * | 2007-08-10 | 2008-05-21 | 石家庄中煤装备制造有限公司 | Anti-collapse highly effective combined drill |
| CN201627535U (en) * | 2010-03-05 | 2010-11-10 | 秦长江 | Secondary reaming drainage bit |
| CN201826304U (en) * | 2010-10-13 | 2011-05-11 | 武汉高铁桩工科技有限公司 | Cross section-variable threaded pile drill stem |
| CN102071876A (en) * | 2011-01-13 | 2011-05-25 | 河南理工大学 | Multistage reducing combined drilling tool |
| CN102199994A (en) * | 2011-01-13 | 2011-09-28 | 河南理工大学 | Multi-level variable-diameter drilling tool |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102966306A (en) * | 2012-12-03 | 2013-03-13 | 山东大学 | System and operation method for drilling hole on hard rock in one attempt |
| CN102966306B (en) * | 2012-12-03 | 2015-06-10 | 山东大学 | System and operation method for drilling hole on hard rock in one attempt |
| CN109184590A (en) * | 2018-11-19 | 2019-01-11 | 河南理工大学 | A kind of deep well drilling method and device |
| CN110644923A (en) * | 2019-10-28 | 2020-01-03 | 煤科集团沈阳研究院有限公司 | A kind of large-diameter auger drilling equipment and method for coal mine |
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Application publication date: 20120321 |