CN104110221B - One fast pore-creating equipment and construction method thereof in frozen soil - Google Patents
One fast pore-creating equipment and construction method thereof in frozen soil Download PDFInfo
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- CN104110221B CN104110221B CN201410284274.8A CN201410284274A CN104110221B CN 104110221 B CN104110221 B CN 104110221B CN 201410284274 A CN201410284274 A CN 201410284274A CN 104110221 B CN104110221 B CN 104110221B
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- drill bit
- liquid nitrogen
- drilling rod
- frozen soil
- feed pipe
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- 239000002689 soil Substances 0.000 title claims abstract description 42
- 238000010276 construction Methods 0.000 title claims abstract description 17
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 194
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 97
- 239000007788 liquid Substances 0.000 claims abstract description 79
- 238000005553 drilling Methods 0.000 claims abstract description 60
- 238000000034 method Methods 0.000 claims abstract description 23
- 238000007710 freezing Methods 0.000 claims abstract description 17
- 230000008014 freezing Effects 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims description 3
- 230000035515 penetration Effects 0.000 abstract description 3
- 230000015572 biosynthetic process Effects 0.000 description 4
- 238000013016 damping Methods 0.000 description 4
- 230000003116 impacting effect Effects 0.000 description 4
- 238000010257 thawing Methods 0.000 description 4
- 238000005422 blasting Methods 0.000 description 3
- 239000012774 insulation material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 230000014075 nitrogen utilization Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The open one of the present invention fast pore-creating equipment and construction method thereof in frozen soil, invent for improving rate of penetration.One fast pore-creating equipment in frozen soil, comprise drilling rod and drill bit, described drilling rod and drill bit internal are provided with the defeated nitrogen hole run through, and drill bit place is provided with liquid nitrogen outlet, and drilling rod rear end is connected with feed pipe, and feed pipe is connected with liquid nitrogen tank.The invention also discloses a kind of construction method of fast pore-creating in frozen soil, comprise the steps: drilling rod to stretch in the boring freezed in advance; By feed pipe, the liquid nitrogen in liquid nitrogen tank is input to the drill bit place being fixed on drilling rod bottom, precooling is carried out to drill bit; After precooling terminates, open rig, rig drives drilling rod to do rotary impact action, and drilling rod drives the bit impact being fixed on drilling rod bottom to carry out bore operation; In bore operation process, the liquid nitrogen stream in liquid nitrogen tank, through the defeated nitrogen hole of feed pipe, drilling rod inside, after drill bit internal passage, flows out from the liquid nitrogen outlet of drill bit.The present invention is applicable to adopt drill bit to carry out bore operation in freezing hole.
Description
Technical field
The present invention relates to mine construction field, particularly in thick surface soil shaft of vertical well construction freezing method process, in frozen soil, carry out the method for drilling and blasting method operation fast, be specially one fast pore-creating equipment and construction method thereof in frozen soil.
Background technology
In mine pit shaft freezing method sinking shaft process, because pit shaft is frozen reality, cause mechanical equivalent of light excavation difficulty, need to adopt drilling and blasting method operation.When adopting drilling and blasting method operation, first need to carry out bore operation.The soil (becoming mud) that in boring procedure, problems faced drill hammer is melted wraps, i.e. balled bit, cannot continue percussive drilling, causes jewel hole speed slow.
Summary of the invention
For problem above, the invention provides one fast pore-creating equipment and construction method thereof in frozen soil, the phenomenon of balled bit can be reduced, improve the speed of boring.
On the one hand, the embodiment of the present invention provides one fast pore-creating equipment in frozen soil, comprises drilling rod and drill bit, described drilling rod and drill bit internal are provided with the defeated nitrogen hole run through, drill bit place is provided with liquid nitrogen outlet, and drilling rod rear end is connected with feed pipe, and feed pipe is connected with liquid nitrogen tank.
Optionally, the liquid nitrogen outlet at described drill bit place is opened on the sidewall of described drill bit.
Optionally, be provided with the passage detoured for liquid nitrogen at described drill bit internal, described bypass channel one end is connected with the defeated nitrogen hole of described drilling rod inside, and the other end is opened on the back side of described drill bit.
Optionally, in described drill bit or the junction of described drilling rod and described drill bit be provided with a closed chamber, in described closed chamber, be provided with temperature pick up, described temperature pick up is fixed in described closed chamber by metal damping spring.
Optionally, flow control valve is provided with between described feed pipe and liquid nitrogen tank, described flow control valve is connected with the automaton of flow control valve, described temperature pick up is also connected with the automaton of described flow control valve, the automaton of described flow control valve according to the temperature of described temperature sensor feedback, by regulating described flow control valve to regulate the uninterrupted of the liquid nitrogen in the inner defeated nitrogen hole of the described drilling rod of input.
Optionally, described feed pipe outside adopts the wrapping of polytene heat-insulation material.
The present invention is fast pore-creating equipment in frozen soil, and drilling rod and drill bit internal are provided with the defeated nitrogen hole run through, and drill bit place is provided with liquid nitrogen outlet, and drilling rod rear end is connected with feed pipe, and feed pipe is connected with liquid nitrogen tank.Liquid nitrogen stored in liquid nitrogen tank can be provided with the defeated nitrogen hole run through through drilling rod and drill bit internal when bore operation like this, be delivered to drill bit place, by liquid nitrogen, drill bit is cooled, thus prevent drill bit from impacting in operation process the frozen soil thawing formation mud producing heat and cause carrying out bore operation, the phenomenon that correspondingly also just can reduce balled bit occurs, and improves the speed of bore operation.
On the other hand, the invention also discloses a kind of construction method of fast pore-creating in frozen soil, comprise the steps: drilling rod to stretch in the boring formed in the frozen soil freezed in advance; By feed pipe, the liquid nitrogen in liquid nitrogen tank is input to the drill bit place being fixed on drilling rod bottom, precooling is carried out to drill bit; After precooling terminates, open rig, rig drives drilling rod to do rotary impact action, and drilling rod drives the bit impact being fixed on drilling rod bottom to carry out bore operation;
In bore operation process, the liquid nitrogen stream in liquid nitrogen tank, through the defeated nitrogen hole of feed pipe, drilling rod inside, after drill bit internal passage, flows out from the liquid nitrogen outlet of drill bit.
Optionally, the drill bit rotational being fixed on drilling rod bottom is driven to carry out in the process of bore operation at drilling rod, the temperature of detection drill bit; By the temperature feedback of drill bit that detects to liquid nitrogen flow control device, liquid nitrogen flow control device is input to the flow of the liquid nitrogen at drill bit place according to the temperature adjustment of the drill bit detected, and the temperature of drill bit is controlled between-30 DEG C to+30 DEG C.
Optionally, in bore operation process, liquid nitrogen stream in liquid nitrogen tank is through the defeated nitrogen hole of feed pipe, drilling rod inside, after drill bit internal passage, to flow out and inwall along the freezing hole bored volatilize from the outlet of the liquid nitrogen of drill bit, while volatilizing, the inwall of the freezing hole bored is freezed again.
The construction method of the present invention's fast pore-creating in frozen soil, by liquid nitrogen, drill bit is cooled, thus prevent drill bit from impacting in operation process the frozen soil thawing formation mud producing heat and cause carrying out bore operation, the phenomenon that correspondingly also just can reduce balled bit occurs, and improves the speed of bore operation.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of the present invention in frozen soil during fast pore-creating equipment use;
Fig. 2 is the present invention's sectional view of bit part in fast pore-creating equipment in frozen soil;
Fig. 3 is the present invention's top view of bit part in fast pore-creating equipment in frozen soil.
In figure, 1-drilling rod; The defeated nitrogen hole of 11-; 2-drill bit; 21-passage; 3-frozen soil; 4-freezing hole; 5-frozen soil particle; 6-liquid nitrogen exports; 7-liquid nitrogen tank; 8-feed pipe; 81-flow control valve; 9-closed chamber; 91-temperature pick up.
Detailed description of the invention
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
Should be clear and definite, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Referring to Fig. 1, of the present invention in frozen soil fast pore-creating apparatus embodiments, comprise drilling rod 1 and drill bit 2, drilling rod 1 and drill bit 2 inside are provided with the defeated nitrogen hole 11 run through, drill bit 2 place is provided with liquid nitrogen outlet, and drilling rod 1 rear end is connected with feed pipe, and feed pipe 8 is connected with liquid nitrogen tank 7.
The embodiment of the present invention is fast pore-creating equipment in frozen soil, can be used for carrying out bore operation in the freezing hole 31 freezed in advance, and the surrounding of freezing hole is through freezing to be formed with frozen soil 3.Drilling rod and drill bit internal are provided with the defeated nitrogen hole run through, and drill bit place is provided with liquid nitrogen outlet, and drilling rod rear end is connected with feed pipe, and feed pipe is connected with liquid nitrogen tank.Liquid nitrogen stored in liquid nitrogen tank can be provided with the defeated nitrogen hole run through through drilling rod and drill bit internal when bore operation like this, be delivered to drill bit place, by liquid nitrogen, drill bit is cooled, thus prevent drill bit from impacting in operation process the frozen soil thawing formation mud producing heat and cause carrying out bore operation, the phenomenon that correspondingly also just can reduce balled bit occurs, and improves the speed of bore operation.
The present invention is in frozen soil in fast pore-creating equipment one embodiment, the liquid nitrogen outlet at described drill bit place is opened on the sidewall of described drill bit, the inhibition of the hole wall around such dependence drill bit, prevent liquid nitrogen from flowing out from drill bit too fast, to carry out cooling while the phenomenon reducing balled bit occurs to drill bit utilizing liquid nitrogen, also can save the consumption of liquid nitrogen, reduce costs.
Referring to Fig. 2, the present invention is in frozen soil in another embodiment of fast pore-creating equipment, be provided with the passage 21 detoured for liquid nitrogen in described drill bit 2 inside, described in passage 21 one end of detouring be connected with the defeated nitrogen hole 11 of described drilling rod inside, the back side that the other end is opened on described drill bit forms liquid nitrogen and exports 6.Described passage 21 1 aspect detoured is conducive to liquid nitrogen and cools the composition of drill bit, plays damping action on the other hand, prevent liquid nitrogen from flowing out from drill bit too fast to the flowing of liquid nitrogen.
Referring to Fig. 3, multiple liquid nitrogen outlets 6 are arranged on the back side of drill bit, and become circle distribution around drilling rod, can prevent from liquid nitrogen from exporting 6 to be blocked by frozen soil particle 5, liquid nitrogen can be discharged into equably again the bottom of freezing hole, the temperature of freezing hole sidewall can be reduced better, reduce the waste of liquid nitrogen, improve liquid nitrogen utilization rate.
Referring to Fig. 2, the present invention is in frozen soil in the another embodiment of fast pore-creating equipment, in described drill bit 2 or described drilling rod 1 be provided with a closed chamber 9 with the junction of described drill bit, temperature pick up 91 is provided with in closed chamber 9, described temperature pick up 91 is fixed in described closed chamber by metal damping spring, and damping spring can reduce the vibration limits of boring vibrations to temperature pick up.Temperature pick up 91 can measure the temperature of drill bit timely and accurately.
The present invention is in frozen soil in the another embodiment of fast pore-creating equipment, flow control valve 81 is provided with between feed pipe 8 and liquid nitrogen tank 7, flow control valve 81 is connected with the automaton of flow control valve, temperature pick up 91 is also connected with the automaton of described flow control valve, the automaton of flow control valve according to the temperature of described temperature sensor feedback, by regulating described flow control valve to regulate the uninterrupted of the liquid nitrogen in the inner defeated nitrogen hole of the described drilling rod of input.The too high easy balled bit of temperature at drill bit place when holing, if temperature is too low, the hardness so freezing earth will increase greatly, thus increases the difficulty of boring, easy worn drill bit.By temperature pick up 91, temperature data is passed to flow control valve 81 in time, the temperature bottom hole just can be made to control a suitable level, penetration rate can be improved and can prevent again mud generation from causing balled bit.
The present invention is in frozen soil in fast pore-creating equipment one embodiment, and described feed pipe 8 outside adopts the wrapping of polytene heat-insulation material.
The embodiment of the present invention also provides a kind of construction method of fast pore-creating in frozen soil, comprises the steps:
S1, drilling rod stretched in the boring that formed in the frozen soil freezed in advance;
S2, by feed pipe, the liquid nitrogen in liquid nitrogen tank is input to the drill bit place being fixed on drilling rod bottom, precooling is carried out to drill bit;
After S3, precooling terminate, open rig, rig drives drilling rod to do rotary impact action, and drilling rod drives the bit impact being fixed on drilling rod bottom to carry out bore operation;
S4, in bore operation process, the liquid nitrogen stream in liquid nitrogen tank, through the defeated nitrogen hole of feed pipe, drilling rod inside, after the passage that drill bit internal passage preferably detours, flows out from the outlet of the liquid nitrogen of drill bit.
The construction method of the present invention's fast pore-creating in frozen soil, by liquid nitrogen, drill bit is cooled, thus prevent drill bit from impacting in operation process the frozen soil thawing formation mud producing heat and cause carrying out bore operation, the phenomenon that correspondingly also just can reduce balled bit occurs, and improves the speed of bore operation.
In construction method one embodiment of the present invention's fast pore-creating in frozen soil, the drill bit rotational being fixed on drilling rod bottom is driven to carry out in the process of bore operation at drilling rod, the temperature of detection drill bit; By the temperature feedback of drill bit that detects to liquid nitrogen flow control device, liquid nitrogen flow control device is input to the flow of the liquid nitrogen at drill bit place according to the temperature adjustment of the drill bit detected, and the temperature of drill bit is controlled between-30 DEG C to+30 DEG C.
The too high easy balled bit of temperature at drill bit place when holing, if temperature is too low, the hardness so freezing earth will increase greatly, thus increases the difficulty of boring, easy worn drill bit.By temperature pick up 91, temperature data is passed to flow control valve 81 in time, the temperature bottom hole just can be made to control a suitable level, penetration rate can be improved and can prevent again mud generation from causing balled bit.
In construction method one embodiment of the present invention's fast pore-creating in frozen soil, in bore operation process, liquid nitrogen stream in liquid nitrogen tank is through the defeated nitrogen hole of feed pipe, drilling rod inside, after drill bit internal passage, to flow out and inwall along the freezing hole bored volatilize from the outlet of the liquid nitrogen of drill bit, while volatilizing, the inwall of the freezing hole bored is freezed again.Fully can improve the utilization rate of liquid nitrogen like this.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of claim.
Claims (3)
1. the construction method of fast pore-creating in frozen soil, is characterized in that, comprise the steps:
Drilling rod is stretched in the boring formed in the frozen soil freezed in advance;
By feed pipe, the liquid nitrogen in liquid nitrogen tank is input to the drill bit place being fixed on drilling rod bottom, precooling is carried out to drill bit;
After precooling terminates, open rig, rig drives drilling rod to do rotary impact action, and drilling rod drives the bit impact being fixed on drilling rod bottom to carry out bore operation;
In bore operation process, the liquid nitrogen stream in liquid nitrogen tank, through the defeated nitrogen hole of feed pipe, drilling rod inside, after drill bit internal passage, flows out from the liquid nitrogen outlet of drill bit.
2. the construction method of fast pore-creating in frozen soil according to claim 1, is characterized in that, drives the drill bit rotational being fixed on drilling rod bottom to carry out in the process of bore operation at drilling rod, the temperature of detection drill bit;
By the temperature feedback of drill bit that detects to liquid nitrogen flow control device, liquid nitrogen flow control device is input to the flow of the liquid nitrogen at drill bit place according to the temperature adjustment of the drill bit detected, and the temperature of drill bit is controlled between-30 DEG C to+30 DEG C.
3. the construction method of fast pore-creating in frozen soil according to claim 2, it is characterized in that, in bore operation process, liquid nitrogen stream in liquid nitrogen tank is through the defeated nitrogen hole of feed pipe, drilling rod inside, after drill bit internal passage, to flow out and inwall along the freezing hole bored volatilize from the outlet of the liquid nitrogen of drill bit, while volatilizing, the inwall of the freezing hole bored is freezed again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410284274.8A CN104110221B (en) | 2014-06-23 | 2014-06-23 | One fast pore-creating equipment and construction method thereof in frozen soil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410284274.8A CN104110221B (en) | 2014-06-23 | 2014-06-23 | One fast pore-creating equipment and construction method thereof in frozen soil |
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| Publication Number | Publication Date |
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| CN104110221A CN104110221A (en) | 2014-10-22 |
| CN104110221B true CN104110221B (en) | 2016-04-06 |
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| CN201410284274.8A Active CN104110221B (en) | 2014-06-23 | 2014-06-23 | One fast pore-creating equipment and construction method thereof in frozen soil |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107701102A (en) * | 2017-11-15 | 2018-02-16 | 临沂矿业集团有限责任公司 | A kind of frozen soil plays native machine |
| CN108104716B (en) * | 2017-12-13 | 2019-05-21 | 中国石油大学(华东) | Simulate the device of tundra drilling well |
| CN108797617A (en) * | 2018-06-13 | 2018-11-13 | 王海霖 | A kind of piled anchor and liquid nitrogen frozen soil wall composite support implementation and its supporting construction |
| CN111323084B (en) * | 2020-04-03 | 2021-10-08 | 哈尔滨师范大学 | Portable frozen soil movable layer thickness and temperature detection device |
| CN114718039B (en) * | 2022-04-12 | 2023-09-26 | 宋恩泽 | Drilling and liquid nitrogen freezing integrated dam reinforcement device and reinforcement method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| DE3017122A1 (en) * | 1980-05-03 | 1981-11-05 | Linde Ag, 6200 Wiesbaden | DRILLING PROCESS |
| JP4475497B2 (en) * | 2003-05-19 | 2010-06-09 | 岡部株式会社 | Self-drilling lock bolt and self-drilling lock bolt construction method |
| CN102758631A (en) * | 2012-08-02 | 2012-10-31 | 兖矿集团有限公司 | Freezing method of frozen wall of inclined shaft |
| CN102900357B (en) * | 2012-09-27 | 2016-01-20 | 三一重工股份有限公司 | Brine collection method |
| CN203905834U (en) * | 2014-06-23 | 2014-10-29 | 中国矿业大学(北京) | Equipment for rapidly perforating in frozen soil |
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| CN104110221A (en) | 2014-10-22 |
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Inventor after: Yang Liyun Inventor after: Yang Guoliang Inventor after: Yang Renshu Inventor after: Zhang Xinwen Inventor before: Yang Renshu Inventor before: Yang Liyun Inventor before: Zhang Xinwen |
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