CN114183078A - Drilling tool capable of being cooled circularly and using method - Google Patents
Drilling tool capable of being cooled circularly and using method Download PDFInfo
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- CN114183078A CN114183078A CN202111470177.4A CN202111470177A CN114183078A CN 114183078 A CN114183078 A CN 114183078A CN 202111470177 A CN202111470177 A CN 202111470177A CN 114183078 A CN114183078 A CN 114183078A
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- cooling
- drill
- inlet channel
- drill rod
- cooling material
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/60—Drill bits characterised by conduits or nozzles for drilling fluids
- E21B10/61—Drill bits characterised by conduits or nozzles for drilling fluids characterised by the nozzle structure
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/16—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using gaseous fluids
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B41/00—Equipment or details not covered by groups E21B15/00 - E21B40/00
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F7/00—Methods or devices for drawing- off gases with or without subsequent use of the gas for any purpose
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
Abstract
The invention discloses a drilling tool capable of circularly cooling, which comprises a drill bit and a drill rod; the drill bit comprises a drill bit body, a blade, a drill bit air inlet channel, a first cooling substance discharge channel, a cooling substance circulation channel, a communication hole and a nozzle; the drill rod is provided with a rod body, a drill rod air inlet channel is axially arranged at the center of the inner part of the rod body, and a second cooling material inlet channel and a second cooling material outlet channel are symmetrically arranged on two sides of the periphery of the drill rod air inlet channel. The invention also provides a using method of the drilling tool capable of circularly cooling. The invention can effectively control the temperature of the drilling tool, particularly reduce the temperature of the cutting teeth of the drill bit in the bedding drilling construction process of the coal seam, thereby avoiding accidents such as drilling ignition, carbon monoxide poisoning of personnel and the like. In addition, the spiral blade is arranged on the drill rod in the drilling tool, so that the slag discharge capacity of the drilling tool can be effectively improved.
Description
Technical Field
The invention relates to the technical field of drilling tools, in particular to a drilling tool capable of circularly cooling and a use method, which are particularly suitable for coal seam bedding drilling construction and belong to the technical field of coal mine safety.
Background
The bedding drilling pre-pumping coal bed gas is widely applied to various coal mine gas control, particularly to outburst mines, and the method is an important regional outburst prevention measure. At present, the method of alternating wind slag discharge and water slag discharge is mostly adopted when the bedding drilling of the coal seam is constructed, the main reason is that the bedding drilling is longer, when only water is adopted for slag discharge, drill cuttings and water are mixed to easily form pasty mixture, so that the inner of the drilling is blocked, the phenomenon of locking the drilling rod can be caused in serious cases, the drilling rod and the drilling bit are lost, and great economic loss is caused; when only wind is used for deslagging, in the long-time drilling process of the drill bit, due to the friction heating, the coal bed in the drill hole is likely to be ignited, carbon monoxide is generated, and the life health of workers is threatened; therefore, during the bedding drilling construction, firstly, the carbon monoxide detection device is placed at the hole of the drill hole, when carbon monoxide occurs, the carbon monoxide detection device is quickly replaced by a water slag discharging mode, the temperature of the drill bit and the drill rod is reduced, and after a period of time, the carbon monoxide detection device is replaced by a wind slag discharging mode, namely, a construction method that wind slag discharging and water slag discharging are alternated is adopted, but the construction method still has the possibility of coal bed ignition in the drill hole, and meanwhile, the danger of drilling tool loss exists, the operation is frequent, and the labor intensity of workers is increased. Therefore, there is a need for a drilling tool that reduces its temperature during drilling to eliminate the above-mentioned safety hazards.
Disclosure of Invention
The invention aims to solve the problems and provides a circulative cooling drilling tool and a using method thereof.
The above object of the present invention is achieved by the following technical solutions: a circulative cooling drilling tool comprises a drill bit and a drill rod; the drill bit comprises a drill bit body, blades, a drill bit air inlet channel, a first cooling substance discharge channel, a cooling substance circulation channel, a communication hole and nozzles, wherein the drill bit body comprises an integrally formed drill bit base body and a disc body, the disc body is arranged at the top end of the drill bit base body, a plurality of blades are arranged on the upper end face of the disc body, the drill bit air inlet channel penetrates through the center positions of the drill bit base body and the disc body in the vertical direction, the upward convex nozzles are arranged at the top end of the drill bit air inlet channel, the first cooling substance inlet channel and the first cooling substance discharge channel are symmetrically arranged on the two peripheral sides of the drill bit air inlet channel in the vertical direction, the circular communication hole is arranged in the disc body in the circumferential direction, the cooling substance circulation channel is arranged in each blade, the bottom end of each cooling substance circulation channel is communicated with the top end of the first cooling substance inlet channel or the first cooling substance discharge channel, the top end of each cooling material circulation channel is communicated with the communication hole, a first internal thread and a second internal thread are arranged inside the bottom end of the drill bit base body, the first internal thread is positioned at the bottom end of the drill bit air inlet channel, and the second internal thread is positioned on the outer peripheral surfaces of the bottom ends of the first cooling material inlet channel and the first cooling material outlet channel;
the drill rod is provided with a rod body, a drill rod air inlet channel is axially arranged in the center of the inner part of the rod body, a second cooling material inlet channel and a second cooling material discharge channel are symmetrically arranged on two sides of the periphery of the drill rod air inlet channel, a first annular boss and a second annular boss which are concentrically arranged are arranged at the front end of the drill rod, a central through hole of the first annular boss is coaxial with the drill rod air inlet channel, the second annular boss is positioned on the periphery of the circumferential surface where the second cooling material inlet channel and the second cooling material discharge channel are positioned, a first external thread matched with the first internal thread is arranged on the periphery of the first annular boss, and a second external thread matched with the second internal thread is arranged on the periphery of the second annular boss;
the front end of the drill rod is connected with the first internal thread through the first external thread and the second internal thread in a matching manner, after the drill rod is connected in place, the first cooling material inlet channel of the drill bit corresponds to the second cooling material inlet channel of the drill rod, the first cooling material outlet channel of the drill bit corresponds to the second cooling material outlet channel of the drill rod, and the drill bit air inlet channel corresponds to the drill rod air inlet channel.
Further, the number of the blades is 3-5.
Further, 3-5 cutting teeth are arranged on each blade.
Further, the blade is made of alloy steel or diamond.
Further, the cutting tooth is made of alloy steel or diamond.
Further, the tail end of the rod body is provided with a third internal thread matched with the first external thread and a fourth internal thread matched with the second external thread.
Furthermore, the peripheral surface of the rod body is provided with helical blades, the radial thickness D of each helical blade is 5-15mm, the axial length L of each helical blade is 15-30mm, the helical angle is 40-50 degrees, and the pitch of each helical blade is 0.8-1.2 times of the diameter of the drill rod.
The invention also provides a use method of the circulative cooling drilling tool, which comprises the following steps:
meanwhile, air in the underground compressed air pipeline sequentially flows through the air pipe, the water braid, the drill rod air inlet channel, the drill bit air inlet channel and the nozzle to enter the bottom of the drill hole, and coal dust generated after the drill bit is crushed is discharged out of the drill hole by means of a helical blade on the drill rod;
step 4, when the drilling machine drives the drill rod to retreat from the drill, firstly, the cooling material supply pipeline on the water swivel is removed, the air pipe is replaced, and the air in the underground air pressing pipeline presses all the cooling materials in the drill rod and the drill bit into the cooling material circulation box; and then, removing the cooling material discharge pipeline on the water swivel, reinstalling the air pipe at the position on the water swivel communicated with the air inlet channel of the drill rod, and starting normal drill withdrawal operation.
Further, the using method of the circulative cooling drilling tool further comprises step 5, wherein the step 5 specifically comprises the following steps:
when a drill rod is added, the booster pump is closed, and a cooling material collecting container is placed below the water swivel; then the water braid is removed, and at the moment, the cooling material in the drill rod flows out of the drill rod under the action of self gravity or external pressure and enters a cooling material collecting container; rapidly increasing the drill rod, installing a water swivel and restarting drilling; and at the moment, pouring the cooling substance in the cooling substance collecting container into the cooling substance circulating box, and repeating the steps until the designed drilling depth is reached.
Compared with the prior art, the invention has the beneficial effects that:
the drill bit of the drilling tool is internally provided with the first cooling material inlet channel and the first cooling material outlet channel, and the drill rod is internally provided with the second cooling material inlet channel and the second cooling material outlet channel, so that the recycling of the cooling materials can be effectively ensured. The temperature of the drilling tool can be effectively controlled in the coal seam bedding drilling construction process, and particularly the temperature of the cutting teeth of the drill bit is reduced, so that accidents such as drilling ignition, personnel carbon monoxide poisoning and the like are avoided. In addition, the spiral blade is arranged on the drill rod in the drilling tool, so that the slag discharge capacity of the drilling tool can be effectively improved.
Drawings
The invention is further described with reference to the following figures and detailed description.
FIG. 1 is a schematic view of the construction of the drill bit and drill stem of the circulatively cooled drilling tool of the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of the drill rod of FIG. 1;
FIG. 3 is another schematic view of the configuration of the drill head and drill stem of the circulatively cooled drilling tool of the present invention;
FIG. 4 is a schematic view of the bottom structure of the drill stem of the present invention;
FIG. 5 is a schematic diagram of a method of using the circulatively cooled drilling tool of the present invention;
in the figure: 1. a drill bit, 11, a drill bit body, 1101, a drill bit base body, 1102, a disk body, 12, blades, 13, a drill bit air inlet channel, 14, a first cooling material inlet channel, 15, a first cooling material discharge channel, 16, a cooling material circulation channel, 17, a communication hole, 18, a nozzle, 19, a first internal thread, 110, a second internal thread, 111, a cutting tooth, 2, a drill rod, 21, a rod body, 22, a drill rod air inlet channel, 23, a second cooling material inlet channel, 24, a second cooling material discharge channel, 25, a first annular boss, 26, a second annular boss, 27, a first external thread, 28, a second external thread, 29, a third internal thread, 210, a fourth internal thread, 211, a helical blade, 3, a drilling machine, 4, a water braid, 5, an air duct, 6, a cooling material supply pipeline, 7, a cooling material discharge pipeline, 8, a downhole compressed air pipeline, 9, a drill bit air inlet channel, a drill bit body, 1101, a drill bit body, a drill bit body, a drill bit, A booster pump 10, a cooling material circulating box 20 and a coal body.
Detailed Description
The details and embodiments of the present invention are further described with reference to the accompanying drawings and the following embodiments.
Example one
Referring to fig. 1-4, a circulatively cooled drilling tool includes a drill bit 1 and a drill rod 2; the drill bit 1 comprises a drill bit body 11, blades 12, a drill bit air inlet channel 13, a first cooling substance inlet channel 14, a first cooling substance discharge channel 15, a cooling substance circulation channel 16, a communication hole 17 and a nozzle 18, wherein the drill bit body 11 comprises a drill bit base 1101 and a circular disc body 1102 which are integrally formed, the circular disc body 1102 is arranged at the top end of the drill bit base 1101, a plurality of blades 12 are arranged on the upper end face of the circular disc body 1102, the drill bit air inlet channel 13 (the cross section of the drill bit air inlet channel 13 is circular) penetrates through the center positions of the drill bit base 1101 and the circular disc body 1102 along the vertical direction, the nozzle 18 protruding upwards is arranged at the top end of the drill bit air inlet channel 13, the first cooling substance inlet channel 14 and the first cooling substance discharge channel 15 are symmetrically arranged on two sides of the periphery of the drill bit air inlet channel 13 along the vertical direction (the cross sections of the first cooling substance inlet channel 14 and the first cooling substance discharge channel 15 are circular arc), a circular communication hole 17 is formed in the disc body 1102 along the circumferential direction (the aperture of the communication hole 17 is 1/3-2/3 of the thickness of the disc body 1102), a cooling material flow channel 16 is formed in each blade 12, the bottom end of each cooling material flow channel 16 is communicated with the top end of the first cooling material inlet channel 14 or the first cooling material outlet channel 15, the top end of each cooling material flow channel 16 is communicated with the communication hole 17, a first internal thread 19 and a second internal thread 110 are formed in the bottom end of the drill bit base 1101, the first internal thread 19 is located at the bottom end of the drill bit air inlet channel 13, and the second internal thread 110 is located on the outer peripheral surface of the bottom end of the first cooling material inlet channel 14 and the first cooling material outlet channel 15;
the drill rod 2 is provided with a rod body 21, a drill rod air inlet channel 22 (the cross section of the drill rod air inlet channel 22 is circular) is axially arranged at the center of the inner part of the rod body 21, a second cooling material inlet channel 23 and a second cooling material outlet channel 24 (the cross sections of the second cooling material inlet channel 23 and the second cooling material outlet channel 24 are arc-shaped) are symmetrically arranged at the two sides of the outer periphery of the drill rod air inlet channel 22, a first annular boss 25 and a second annular boss 26 which are concentrically arranged are arranged at the front end of the drill rod 2, a central through hole of the first annular boss 25 is coaxial with the drill rod air inlet channel 22, the second annular boss 26 is positioned at the periphery of the circumference where the second cooling material inlet channel 23 and the second cooling material outlet channel 24 are positioned, a first external thread 27 matched with the first internal thread 19 is arranged on the periphery of the first annular boss 25, and a second external thread 110 matched with the second internal thread is arranged on the periphery of the second annular boss 26 Threads 28;
the front end of the drill rod 2 is matched with the first internal thread 19 through the first external thread 27, the second external thread 28 is matched and connected with the second internal thread 110, after the drill rod is connected in place, the first cooling material inlet channel 14 of the drill bit 1 corresponds to the second cooling material inlet channel 23 of the drill rod 2, the first cooling material outlet channel 15 of the drill bit 1 corresponds to the second cooling material outlet channel 24 of the drill rod 2, and the drill bit air inlet channel 13 corresponds to the drill rod air inlet channel 22.
The number of the blades 12 is 3-5.
Each blade 12 is provided with 3-5 cutting teeth 111.
The blade 12 is made of alloy steel or diamond.
The cutting teeth 111 are made of alloy steel or diamond.
The rod body 21 is made of alloy steel or diamond material.
A third internal thread 29 matched with the first external thread 27 and a fourth internal thread 210 matched with the second external thread 28 are arranged at the tail end of the rod body 21. When a plurality of drill rods 2 are connected in series, the third internal thread 29 and the fourth internal thread 210 are used for connecting with the first external thread 27 and the second external thread 28 of the front end drill rod 2.
The outer circumferential surface of the rod body 21 is provided with a helical blade 211, the radial thickness D of the helical blade 211 is 5-15mm, the axial length L is 15-30mm, the helical angle is 40-50 degrees, and the pitch is 0.8-1.2 times of the outer diameter of the drill rod 2.
Example two
Referring to fig. 5, a method for using a circulatively cooled drilling tool is implemented by using the circulatively cooled drilling tool of the first embodiment, and specifically includes the following steps:
meanwhile, air in the underground compressed air pipeline 8 sequentially flows through the air pipe 5, the water swivel 4, the drill rod air inlet channel 22, the drill bit air inlet channel 13 and the nozzle 18 to enter the bottom of the drill hole, and coal dust crushed by the drill bit 1 is discharged out of the drill hole by means of the helical blade 211 on the drill rod 2;
step 4, when the drilling machine 3 drives the drill rod 2 to retreat, firstly, the cooling material supply pipeline 6 on the water swivel 4 is dismantled, the upper air pipe 5 is replaced, and the air in the underground compressed air pipeline 8 presses all the cooling materials in the drill rod 2 and the drill bit 1 into the cooling material circulation box 10; and then the cooling material discharge pipeline 7 on the water swivel 4 is removed, the air pipe 5 is installed again at the position of the water swivel 4 communicated with the drill rod air inlet channel 22, and normal drill withdrawal operation is started.
EXAMPLE III
The difference from the second embodiment is that: the using method of the circulative cooling drilling tool further comprises a step 5, wherein the step 5 specifically comprises the following steps: when the drill rod 2 is added, the booster pump 9 is firstly closed, and a cooling material collecting container is placed below the water braid 4; then the water braid 4 is removed, and at the moment, the cooling material in the drill rod 2 flows out of the drill rod 2 under the action of self gravity or external pressure and enters a cooling material collecting container; rapidly increasing the drill rod 2, installing the water swivel 4 and restarting drilling; at this time, the cooling material in the cooling material collecting container is poured into the cooling material circulation box 10, and the process is repeated until the designed depth of the drilled hole is reached.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. A circulative cooling drilling tool is characterized by comprising a drill bit and a drill rod; the drill bit comprises a drill bit body, blades, a drill bit air inlet channel, a first cooling substance discharge channel, a cooling substance circulation channel, a communication hole and nozzles, wherein the drill bit body comprises an integrally formed drill bit base body and a disc body, the disc body is arranged at the top end of the drill bit base body, a plurality of blades are arranged on the upper end face of the disc body, the drill bit air inlet channel penetrates through the center positions of the drill bit base body and the disc body in the vertical direction, the upward convex nozzles are arranged at the top end of the drill bit air inlet channel, the first cooling substance inlet channel and the first cooling substance discharge channel are symmetrically arranged on the two peripheral sides of the drill bit air inlet channel in the vertical direction, the circular communication hole is arranged in the disc body in the circumferential direction, the cooling substance circulation channel is arranged in each blade, the bottom end of each cooling substance circulation channel is communicated with the top end of the first cooling substance inlet channel or the first cooling substance discharge channel, the top end of each cooling material circulation channel is communicated with the communication hole, a first internal thread and a second internal thread are arranged inside the bottom end of the drill bit base body, the first internal thread is positioned at the bottom end of the drill bit air inlet channel, and the second internal thread is positioned on the outer peripheral surfaces of the bottom ends of the first cooling material inlet channel and the first cooling material outlet channel;
the drill rod is provided with a rod body, a drill rod air inlet channel is axially arranged in the center of the inner part of the rod body, a second cooling material inlet channel and a second cooling material discharge channel are symmetrically arranged on two sides of the periphery of the drill rod air inlet channel, a first annular boss and a second annular boss which are concentrically arranged are arranged at the front end of the drill rod, a central through hole of the first annular boss is coaxial with the drill rod air inlet channel, the second annular boss is positioned on the periphery of the circumferential surface where the second cooling material inlet channel and the second cooling material discharge channel are positioned, a first external thread matched with the first internal thread is arranged on the periphery of the first annular boss, and a second external thread matched with the second internal thread is arranged on the periphery of the second annular boss;
the front end of the drill rod is connected with the first internal thread through the first external thread and the second internal thread in a matching manner, after the drill rod is connected in place, the first cooling material inlet channel of the drill bit corresponds to the second cooling material inlet channel of the drill rod, the first cooling material outlet channel of the drill bit corresponds to the second cooling material outlet channel of the drill rod, and the drill bit air inlet channel corresponds to the drill rod air inlet channel.
2. The circulatively cooled drilling tool of claim 1, wherein the number of blades is 3-5.
3. The circulatively cooled drilling tool of claim 1, wherein there are 3-5 cutting teeth on each of said blades.
4. A circulatively cooled drilling tool according to claim 1, 2 or 3, wherein the blades are made of alloy steel or diamond.
5. A circulatively cooled drilling tool as set forth in claim 3, wherein said cutting teeth are made of alloy steel or diamond.
6. The circulatively cooled drill as set forth in claim 1, wherein a third internal thread matching said first external thread and a fourth internal thread matching said second external thread are provided at the tail end of said shank.
7. The circulatively cooled drilling tool according to claim 1, wherein a helical blade is provided on the outer circumferential surface of the shank, the helical blade having a radial thickness D of 5 to 15mm, an axial length L of 15 to 30mm, a helical angle of 40 to 50 °, and a pitch of 0.8 to 1.2 times the diameter of the drill rod.
8. The use method of the circulative cooling drilling tool is characterized by comprising the following steps:
step 1, firstly, a drill bit and a drill rod are matched with a first internal thread through a first external thread, and a second external thread is matched with a second internal thread; the drill rod is arranged on the drilling machine and is driven by the drilling machine to drill or retreat;
step 2, installing a water swivel at the tail end of the drill rod, wherein the other end of the water swivel is respectively connected with an air pipe, a cooling substance supply pipeline and a cooling substance discharge pipeline, the other end of the air pipe is connected with an underground compressed air pipeline, the cooling substance supply pipeline is connected with an outlet of a cooling substance circulation box through a booster pump, and an inlet of the cooling substance circulation box is connected with the cooling substance discharge pipeline; after the water swivel is installed, the air pipe is communicated with the air inlet channel of the drill rod, the cooling material supply pipeline is communicated with the second cooling material inlet channel of the drill rod, and the cooling material discharge pipeline is communicated with the second cooling material discharge channel of the drill rod;
step 3, when a drill rig drives a drill rod to drill, a drill bit cuts and crushes coal bodies by utilizing cutting teeth to generate heat, cooling materials from a cooling material circulation box sequentially enter a second cooling material inlet channel and a first cooling material inlet channel through a cooling material supply pipeline and a water braid through a booster pump, then flow into a communication hole through a cooling material circulation channel to cool each blade and each cutting tooth, then flow to a first cooling material discharge channel, finally flow into the cooling material circulation box through the second cooling material discharge channel and a water braid and cooling material discharge pipeline;
meanwhile, air in the underground compressed air pipeline sequentially flows through the air pipe, the water braid, the drill rod air inlet channel, the drill bit air inlet channel and the nozzle to enter the bottom of the drill hole, and coal dust generated after the drill bit is crushed is discharged out of the drill hole by means of a helical blade on the drill rod;
step 4, when the drilling machine drives the drill rod to retreat from the drill, firstly, the cooling material supply pipeline on the water swivel is removed, the air pipe is replaced, and the air in the underground air pressing pipeline presses all the cooling materials in the drill rod and the drill bit into the cooling material circulation box; and then, removing the cooling material discharge pipeline on the water swivel, reinstalling the air pipe at the position on the water swivel communicated with the air inlet channel of the drill rod, and starting normal drill withdrawal operation.
9. The method for using a circulatively cooled drilling tool according to claim 8, further comprising step 5, wherein step 5 is specifically: when a drill rod is added, the booster pump is closed, and a cooling material collecting container is placed below the water swivel; then the water braid is removed, and at the moment, the cooling material in the drill rod flows out of the drill rod under the action of self gravity or external pressure and enters a cooling material collecting container; rapidly increasing the drill rod, installing a water swivel and restarting drilling; and at the moment, pouring the cooling substance in the cooling substance collecting container into the cooling substance circulating box, and repeating the steps until the designed drilling depth is reached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111470177.4A CN114183078B (en) | 2021-12-03 | 2021-12-03 | Drilling tool capable of being cooled circularly and application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111470177.4A CN114183078B (en) | 2021-12-03 | 2021-12-03 | Drilling tool capable of being cooled circularly and application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114183078A true CN114183078A (en) | 2022-03-15 |
| CN114183078B CN114183078B (en) | 2023-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111470177.4A Active CN114183078B (en) | 2021-12-03 | 2021-12-03 | Drilling tool capable of being cooled circularly and application method |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999040291A1 (en) * | 1998-02-06 | 1999-08-12 | Dresser Industries, Inc. | Roller cone drill bit with improved thrust bearing assembly |
| CN1406309A (en) * | 2000-03-02 | 2003-03-26 | 桑德维克公司 | Rock drill bit and method for its manufacturing |
| CN203161286U (en) * | 2013-04-10 | 2013-08-28 | 曹召丹 | Air-pressing and cooling powder-discharging device by adopting nitrogen in down holes |
| CN108547604A (en) * | 2018-06-20 | 2018-09-18 | 河南理工大学 | A kind of brill punching press integrated apparatus and method |
| CN208845103U (en) * | 2018-08-20 | 2019-05-10 | 江苏华展石油机械有限公司 | A kind of oil bit self-cooling set |
-
2021
- 2021-12-03 CN CN202111470177.4A patent/CN114183078B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1999040291A1 (en) * | 1998-02-06 | 1999-08-12 | Dresser Industries, Inc. | Roller cone drill bit with improved thrust bearing assembly |
| CN1406309A (en) * | 2000-03-02 | 2003-03-26 | 桑德维克公司 | Rock drill bit and method for its manufacturing |
| CN203161286U (en) * | 2013-04-10 | 2013-08-28 | 曹召丹 | Air-pressing and cooling powder-discharging device by adopting nitrogen in down holes |
| CN108547604A (en) * | 2018-06-20 | 2018-09-18 | 河南理工大学 | A kind of brill punching press integrated apparatus and method |
| CN208845103U (en) * | 2018-08-20 | 2019-05-10 | 江苏华展石油机械有限公司 | A kind of oil bit self-cooling set |
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| Publication number | Publication date |
|---|---|
| CN114183078B (en) | 2023-09-08 |
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