CN205330554U - It hinders bionical drilling rod of heat dissipation to be used for soft coal rock to fall - Google Patents
It hinders bionical drilling rod of heat dissipation to be used for soft coal rock to fall Download PDFInfo
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- CN205330554U CN205330554U CN201620017934.0U CN201620017934U CN205330554U CN 205330554 U CN205330554 U CN 205330554U CN 201620017934 U CN201620017934 U CN 201620017934U CN 205330554 U CN205330554 U CN 205330554U
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Abstract
The utility model discloses an it hinders bionical drilling rod of heat dissipation to be used for soft coal rock to fall, include concave connecting piece, the body of rod and the protruding connecting piece connected in order with the axial, concave connecting piece, the body of rod and protruding connecting piece are inside to have the cavity that has a perfect understanding, its characterized in that along axial direction: the outer peripheral surface of the outer peripheral surface of the body of rod, protruding connecting piece and concave connecting piece or the outer peripheral surface of the body of rod and protruding connecting piece or the body of rod and concave connecting piece or the outer peripheral surface of the body of rod evenly are provided with biomimetic structure, and biomimetic structure is recess and/or arch. The utility model discloses creep into the technological problem of difficulty to the soft coal rock, consider the coal seam geological conditions, among the tool joint, use to fall and hinder the bionical drilling rod of heat dissipation construction drilling, realize low resistance, low temperature integration drilling technology system, can effectively improve the effect of creeping into on weak coal petrography stratum.
Description
Technical field
This utility model belongs to weak coal rock layer drilling project technical field, is specifically related to a kind of dropping for cherry coal rock and hinders the bionical drilling rod that dispels the heat。
Background technology
At present, weak coal rock layer drilling construction is one difficult problem of drilling project technical field。In weak coal rock layer drilling process, owing to boring deformation failure is serious, creeping into that resistance is big, deslagging is difficult, cause that drilling depth is shallow, drilling efficiency is low, in drilling process, the boring accidents such as bit freezing, the breaking of rod takes place frequently simultaneously。Particularly soft seam drilling construction, owing to coal mass strength is low, by factor effects such as crustal stress, gas pressure, tectonic stresses, boring shrinkage ratio deformation is extremely serious, in drilling process, drilling rod is in by the fully wrapped around state of cinder, creeps into resistance big, bit freezing phenomenon is serious, and the burning of a lot of drilling gas, boring CO intoxication accident have occurred in China multiple mining area。Such as, the a lot of mine coal seam in Yu Bei, Yu Xi coalfield, Henan is soft seam, coal seam is based on III class granulated coal (coal solid coefficient f=0.25 ~ 0.5) and IV class gruel rib coal (f < 0.3), the drilling construction degree of depth in a lot of regions is less than 20m, cause formation pumping blind zone in coal seam, its result has a strong impact on coal bed gas extraction efficiency, affects safety of coal mines high-efficiency mining simultaneously, brings serious economic loss to coal production。A difficult problem is crept into for soft seam, develop series of new drilling tool, patent name is that " outburst coal seam hole temperature-reducing drilling tool and drilling method thereof " (ZL200610111830.7), " low helical abrasion-proof drill rod and processing technique thereof for mash gas pumping drilling construction " (ZL200810049974.3), " Asymmetric special-section drill rod " (ZL200910064223.3), " irregularly shaped multi-land notch groove drill rod " (ZL200910064973.0) have got good drilling effect, advances the raising of China's cherry coal rock drilling project technical merit to a certain extent。Owing to China's coal seam geological condition is complicated and changeable, soft seam drilling construction remains the important problem of restriction coal bed gas extraction efficiency。
Utility model content
This utility model is in order to solve weak point of the prior art, it is provided that a kind of dropping for cherry coal rock hinders the bionical drilling rod that dispels the heat, and solves conventional drilling tool and creeps into the problem that resistance is big, drilling depth is shallow, drilling efficiency is low, boring accidents is many。
For solving above-mentioned technical problem, this utility model adopts the following technical scheme that and drops the resistance bionical drilling rod of heat radiation for cherry coal rock, including coaxial recessed connector, the body of rod and the convex connector being sequentially connected with, recessed connector, the body of rod and convex connector axially inside direction have through cavity, the external peripheral surface of the body of rod, convex connector and recessed connector or the external peripheral surface of the body of rod and convex connector or the external peripheral surface of the body of rod and recessed connector or the external peripheral surface of the body of rod are evenly arranged with biomimetic features, and biomimetic features is groove and/or projection。
Two adjacent grooves, the distance between adjacent two projections or adjacent groove and projection are 10mm～80mm。
The degree of depth of groove is 0mm～5mm。
Protruding height is 0mm～15mm。
Adopting technique scheme, this utility model drops the resistance bionical drilling method of heat radiation according to cherry coal rock and designs, and drops the resistance bionical drilling method of heat radiation for cherry coal rock, comprises the following steps；
1.. take coal sample or rock sample in place to be onstructed, room test by experiment, Theoretical Calculation assessment boring shrinkage ratiod c；Boring shrinkage ratiod cMaximum displacement is deformed for borehole wallu pThe ratio of radius r when not shrinking with boring；
2.. the boring shrinkage ratio according to job location cherry coal rockd cDesign drilling rod rotates external diameterd 1, when boring shrinkage ratio 0≤d cWhen≤20%, drilling rod rotates external diameterd 1It is designed as 1.5r(1-d c)～1.8r(1-d c)；As boring shrinkage ratio 20% <d cWhen≤40%, drilling rod rotates external diameterd 1It is designed as 1.7r(1-d c)～2.1r(1-d c)；As boring shrinkage ratio 40% <d cWhen≤60%, drilling rod rotates external diameterd 1It is designed as 1.8r(1-d c)～2.5r(1-d c)；When boring shrinkage ratiod c> 60% time, drilling rod rotate external diameterd 1It is designed as 1.9r(1-d c)～1.8r；
3.. the boring shrinkage ratio according to coal seam, job locationd cDesign drilling rod rat height or depth of groove；When boring shrinkage ratio 0≤d cWhen≤20%, drilling rod rat height is set within the scope of 0mm～5mm；As boring shrinkage ratio 20 <d cWhen≤40%, drilling rod rat height is set within the scope of 3mm～8mm；As boring shrinkage ratio 40 <d cWhen≤60%, drilling rod rat height is set within the scope of 5mm～11mm；When boring shrinkage ratiod c> 60% time, drilling rod rat height is set within the scope of 5mm～15mm；When boring shrinkage ratio 0≤d cWhen≤50%, the drilling rod surface groove degree of depth is set within the scope of 0mm～3mm；When boring shrinkage ratiod c> 50% time, the drilling rod surface groove degree of depth is set within the scope of 3mm～5mm；
4.. the boring shrinkage ratio according to coal seam, job locationd cSpacing between design drilling rod rat or groove, when boring shrinkage ratio 0≤d cWhen≤20%, between drilling rod rat or groove, spacing is set within the scope of 10mm～40mm；As boring shrinkage ratio 20 <d cWhen≤40%, between drilling rod rat or groove, spacing is set within the scope of 20mm～50mm；As boring shrinkage ratio 40 <d cWhen≤100%, between drilling rod rat or groove, spacing is set within the scope of 40mm～80mm；
5.. the boring shrinkage ratio according to coal seam, job locationd cDesign rate of penetration；When boring shrinkage ratio 0≤d cWhen≤20%, rate of penetration is designed as 0.8m/min～1m/min；As boring shrinkage ratio 20 <d cWhen≤40%, rate of penetration is designed as 0.6m/min～0.8m/min；As boring shrinkage ratio 40 <d cWhen≤60%, rate of penetration is designed as 0.4m/min～0.6m/min；As boring shrinkage ratio 60 <d cWhen≤100%, rate of penetration is designed as 0.2m/min～0.4m/min；
6.. according to job location coal seam geological condition, it is determined that drilling construction diameter, boring between spacing, hole spacing roof and floor distance, dip angle of hole, azimuth, and according to step 1.～5., it is determined that drilling rod rotation external diameterd 1, drilling rod rat height or depth of groove, spacing, rate of penetration between drilling rod rat or groove, and determine that dropping resistance dispels the heat the structural design form of bionical drilling rod。
The principle that above drilling method adopts is as follows: in drilling process, when boring in block, drilling rod be completely wrapped time, theoretical according to bionics, surface of drill stem is designed as rough and uneven in surface structure, can effectively reduce drilling rod and blocking section contact area, thus reducing rotation and the propelling resistance of drilling rod, additionally, the concaveconvex structure on drilling rod surface makes cinder be in flow regime, will scatter and disappear in time, pre-blockage resisting section amount of localized heat is assembled, it is to avoid in boring, heat assembles the boring accidents caused。This utility model is according to coal seam geological condition assessment boring shrinkage ratiod cAnd determine that drilling rod rotates external diameterd 1, drilling rod rat height or depth of groove, the technical parameter such as spacing, rate of penetration between drilling rod surface protruding or groove, application is dropped resistance and is dispelled the heat bionical drilling rod construction drill, it is achieved low-resistance, low temperature creep into。
This utility model has the effect that
This utility model provides a kind of drilling method also to design corresponding drilling rod, thus that effectively reduces drilling rod creeps into resistance, is conducive to improving cherry coal rock drilling depth and drilling efficiency。Instructed the reasonable drilling rod dropping the resistance bionical drilling rod of heat radiation to rotate external diameter by this utility model drilling methodd 1, drilling rod rat height or depth of groove, spacing and rate of penetration between drilling rod surface protruding or groove, it is achieved that the optimization based on the bionical drilling rod of coal seam geological condition designs, thus what effectively reduce drilling rod creeps into resistance。
This utility model creeps into the technical barrier of difficulty for cherry coal rock, in conjunction with a large amount of engineering practices, according to rock mechanics, bionics correlation theory, take into full account coal seam geological condition, utility model drops resistance for cherry coal rock and dispels the heat bionical drilling rod, and drilling method instructs and drops resistance and dispel the heat the design of bionical jackrod structure, gives full play to and drops resistance and dispel the heat the dual function of " dropping resistance " and " heat radiation " of bionical drilling rod, be conducive to improving cherry coal rock drilling depth, be worth in coal mining enterprise's popularization and application。
Accompanying drawing explanation
Fig. 1 is the structural representation of this utility model embodiment one；
Fig. 2 is the axial sectional view of this utility model embodiment one；
Fig. 3 is the partial enlarged drawing at A place in Fig. 2；
Fig. 4 is the structural representation of this utility model embodiment two；
Fig. 5 is the axial sectional view of this utility model embodiment two；
Fig. 6 is the partial enlarged drawing at B place in Fig. 5；
Fig. 7 is the structural representation of this utility model embodiment three；
Fig. 8 is the axial sectional view of this utility model embodiment three；
Fig. 9 is the partial enlarged drawing at C place in Fig. 8；
Figure 10 is the structural representation of this utility model embodiment four；
Figure 11 is the axial sectional view of this utility model embodiment four；
Figure 12 is the partial enlarged drawing at D place in Figure 11。
Detailed description of the invention
Embodiment one:
As shown in FIG. 1 to 3, for cherry coal rock, the resistance bionical drilling method of heat radiation drops, according to coal seam geological condition assessment boring shrinkage ratiod cAnd determine that drilling rod rotates external diameterd 1, drilling rod rat height H1, spacing L and rate of penetration between drilling rod surface protruding, application is dropped resistance and is dispelled the heat bionical drilling rod construction drill, it is achieved low-resistance, low temperature creep into, and specifically include following steps:
1.. take coal sample or rock sample in place to be onstructed, room test by experiment, Theoretical Calculation assessment boring shrinkage ratiod c(boring shrinkage ratiod cMaximum displacement is deformed for borehole wallu pThe ratio of radius r when not shrinking with boring)；
2.. the boring shrinkage ratio according to job location cherry coal rockd cDesign drilling rod rotates external diameterd 1, when boring shrinkage ratio 0≤d cWhen≤20%, drilling rod rotates external diameterd 1It is designed as 1.5r(1-d c)～1.8r(1-d c)；When 20% < is shunk in boringd cWhen≤40%, drilling rod rotates external diameterd 1It is designed as 1.7r(1-d c)～2.1r(1-d c)；When 40% < is shunk in boringd cWhen≤60%, drilling rod rotates external diameterd 1It is designed as 1.8r(1-d c)～2.5r(1-d c)；When boring is shunkd c> 60% time, drilling rod rotate external diameterd 1It is designed as 1.9r(1-d c)～1.8r；
3.. the boring shrinkage ratio according to coal seam, job locationd cDesign drilling rod rat height H1Or depth of groove H2；When boring shrinkage ratio 0≤d cWhen≤20%, drilling rod rat height H1It is set within the scope of 0mm～5mm；As boring shrinkage ratio 20 <d cWhen≤40%, drilling rod rat height H1It is set within the scope of 3mm～8mm；As boring shrinkage ratio 40 <d cWhen≤60%, drilling rod rat height H1It is set within the scope of 5mm～11mm；When boring shrinkage ratiod c> 60% time, drilling rod rat height H1It is set within the scope of 5mm～15mm；
4.. the boring shrinkage ratio according to coal seam, job locationd cSpacing L between design drilling rod rat, when boring shrinkage ratio 0≤d cWhen≤20%, between drilling rod rat, spacing L is set within the scope of 10mm～40mm；As boring shrinkage ratio 20 <d cWhen≤40%, between drilling rod rat, spacing L is set within the scope of 20mm～50mm；As boring shrinkage ratio 40 <d cWhen≤100%, between drilling rod rat, spacing L is set within the scope of 40mm～80mm；
5.. the boring shrinkage ratio according to coal seam, job locationd cDesign rate of penetration。When boring shrinkage ratio 0≤d cWhen≤20%, rate of penetration is designed as 0.8m/min～1m/min；As boring shrinkage ratio 20 <d cWhen≤40%, rate of penetration is designed as 0.6m/min～0.8m/min；As boring shrinkage ratio 40 <d cWhen≤60%, rate of penetration is designed as 0.4m/min～0.6m/min；As boring shrinkage ratio 60 <d cWhen≤100%, rate of penetration is designed as 0.2m/min～0.4m/min；
6.. according to job location coal seam geological condition, it is determined that drilling construction diameter, boring between spacing, hole spacing roof and floor distance, dip angle of hole, azimuth, and according to step 1.～5., it is determined that drilling rod rotation external diameterd 1, drilling rod rat height H1, spacing L, rate of penetration between drilling rod rat, and determine that dropping resistance dispels the heat the structural design form of bionical drilling rod。
As shown in FIG. 1 to 3, of the present utility model dropping for cherry coal rock hinders the bionical drilling rod that dispels the heat, and including recessed connector 1, the body of rod 2, convex connector 3, recessed connector 1, the body of rod 2, convex connector 3 are coaxial, recessed connector 1 is connected to one end of the body of rod 2, and convex connector 3 is connected to the other end of the body of rod 2。Recessed connector 1 surface, the body of rod 2 surface and convex connector 3 surface are respectively provided with circular arc projection 4, and circular arc projection 4 is uniformly distributed in the surface of the body of rod 2。Between circular arc projection 4, spacing is set within the scope of 10mm～80mm, and circular arc projection 4 is highly set within the scope of 0mm～15mm。
This utility model embodiment one is described below and drops the resistance bionical rod boring principle of heat radiation:
In weak coal rock layer drilling process, boring deflection is big, hole wall destroys is seriously cause creeping into that resistance is big, deslagging is difficult, is the main cause creeping into difficulty。This utility model drops the resistance bionical drilling method of heat radiation for cherry coal rock, in conjunction with coal seam geological condition, according to rock mechanics, bionics correlation theory, it is determined that the boring shrinkage ratio in coal seam, job location, and determine therefrom that the reasonable drilling rod dropping the resistance bionical drilling rod of heat radiation rotates external diameterd 1, drilling rod rat height or depth of groove, spacing and rate of penetration between drilling rod surface protruding or groove。Surface of drill stem is designed as rough and uneven in surface structure, can effectively reduce drilling rod and blocking section contact area, thus that reduces drilling rod creeps into resistance, it is achieved drops resistance and dispels the heat " dropping resistance " effect of bionical drilling rod；The concaveconvex structure on drilling rod surface makes cinder be in flow regime, will scatter and disappear in time, pre-blockage resisting section amount of localized heat gathering, it is to avoid in boring, heat assembles the boring accidents caused, it is achieved drop " heat radiation " effect of the resistance bionical drilling rod of heat radiation。
Embodiment two: as shown in Fig. 4～Fig. 6, different from embodiment one is in that, the biomimetic features dropping the bionical drilling rod surface of resistance heat radiation is square protruding 5。
Embodiment three: as shown in Fig. 7～Fig. 9, from embodiment one, different being in that of example two, embodiment three drilling rod surface circular groove 6, between circular groove 6, spacing L is set within the scope of 10mm～80mm, circular groove 6 depth H2It is set within the scope of 0mm～5mm。When boring shrinkage ratio 0≤d cWhen≤50%, drilling rod surface groove depth H2It is set within the scope of 0mm～3mm；When boring shrinkage ratiod c> 50% time, circular groove 6 depth H on drilling rod surface2It is set within the scope of 3mm～5mm。
Embodiment four: as shown in Figure 10～Figure 12, different from embodiment three is in that, it is square groove 7 that the biomimetic features on the bionical drilling rod surface of resistance heat radiation drops in embodiment four。
Additionally, drilling rod of the present utility model can also be evenly arranged with biomimetic features at the external peripheral surface of the external peripheral surface of the external peripheral surface of the body of rod 2 and convex connector 3 or the body of rod 2 and recessed connector 1 or the body of rod 2, and these biomimetic features can be groove and protruding combining。
Recessed connector 1 and convex connector 3 in this utility model all adopt threaded structure, and recessed connector 1 and convex connector 3 be the coaxial two ends being welded on the body of rod 2 respectively。
Above example is only in order to illustrative not limiting the technical solution of the utility model, although this utility model being described in detail with reference to above-described embodiment, it will be understood by those within the art that: still this utility model can be modified or equivalent replacement, without deviating from any modification or partial replacement of spirit and scope of the present utility model, it all should be encompassed in the middle of right of the present utility model。
Claims (4)
1. for cherry coal rock, the resistance bionical drilling rod of heat radiation drops, including coaxial recessed connector, the body of rod and the convex connector being sequentially connected with, recessed connector, the body of rod and convex connector axially inside direction have through cavity, it is characterized in that: the external peripheral surface of the body of rod, convex connector and recessed connector or the external peripheral surface of the body of rod and convex connector or the external peripheral surface of the body of rod and recessed connector or the external peripheral surface of the body of rod are evenly arranged with biomimetic features, and biomimetic features is groove and/or projection。
2. according to claim 1 dropping for cherry coal rock hinders the bionical drilling rod that dispels the heat, it is characterised in that: two adjacent grooves, the distance between adjacent two projections or adjacent groove and projection are 10mm～80mm。
3. according to claim 1 and 2 dropping for cherry coal rock hinders the bionical drilling rod that dispels the heat, it is characterised in that: the degree of depth of groove is 0mm～5mm。
4. according to claim 3 dropping for cherry coal rock hinders the bionical drilling rod that dispels the heat, it is characterised in that: protruding height is 0mm～15mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620017934.0U CN205330554U (en) | 2016-01-11 | 2016-01-11 | It hinders bionical drilling rod of heat dissipation to be used for soft coal rock to fall |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620017934.0U CN205330554U (en) | 2016-01-11 | 2016-01-11 | It hinders bionical drilling rod of heat dissipation to be used for soft coal rock to fall |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205330554U true CN205330554U (en) | 2016-06-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620017934.0U Expired - Fee Related CN205330554U (en) | 2016-01-11 | 2016-01-11 | It hinders bionical drilling rod of heat dissipation to be used for soft coal rock to fall |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205330554U (en) |
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2016
- 2016-01-11 CN CN201620017934.0U patent/CN205330554U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160622 Termination date: 20180111 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |