CN101220735B - Coal seam wind and spray linked coal core drilling tools and its method for coal core drilling - Google Patents
Coal seam wind and spray linked coal core drilling tools and its method for coal core drilling Download PDFInfo
- Publication number
- CN101220735B CN101220735B CN2007100781114A CN200710078111A CN101220735B CN 101220735 B CN101220735 B CN 101220735B CN 2007100781114 A CN2007100781114 A CN 2007100781114A CN 200710078111 A CN200710078111 A CN 200710078111A CN 101220735 B CN101220735 B CN 101220735B
- Authority
- CN
- China
- Prior art keywords
- wind
- coal
- water
- core
- drill
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003245 coal Substances 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims abstract description 36
- 238000005553 drilling Methods 0.000 title claims abstract description 29
- 239000007921 spray Substances 0.000 title claims description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 78
- 238000009692 water atomization Methods 0.000 claims abstract description 24
- 238000009423 ventilation Methods 0.000 claims abstract description 13
- 239000000779 smoke Substances 0.000 claims description 28
- 241001074085 Scophthalmus aquosus Species 0.000 claims description 13
- 230000000694 effects Effects 0.000 claims description 12
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 5
- 238000009835 boiling Methods 0.000 claims description 3
- 238000011156 evaluation Methods 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 230000035515 penetration Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract 2
- 239000002893 slag Substances 0.000 abstract 1
- 239000002609 medium Substances 0.000 description 14
- 230000000630 rising effect Effects 0.000 description 5
- 239000012736 aqueous medium Substances 0.000 description 4
- 238000009736 wetting Methods 0.000 description 3
- 238000000605 extraction Methods 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000013467 fragmentation Methods 0.000 description 1
- 238000006062 fragmentation reaction Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Images
Landscapes
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
Abstract
The invention relates to a machine for drilling coal core with wind and water fog in a coal bed, which includes a pneumatic drill, a drill shank, a drill stem and a drill end joint and is characterized in that: the other end of the drill end joint is connected with the outlet end of a water atomization device, the two inlet ends of the water atomization device are respectively connected with a pressure ventilation pipe and a water supply pipe; the front end of the drill stem is connected with a corer. The operation procedure of the machine is that: arrange holes, connect pipeline, drill the coal core, withdraw the drill and assess if the primitive character of the coal core meet the requirements of integrality, quality and rapidity. The core bit of the machine provided by the invention hasgood cooling property, the withdrawn coal core is integral and keeps the primitive character, which is especially suitable for the coring for determining the firedamp content of the soft coal bed. Th e method for drilling the coal core keeps the advantages of the coring with water and wind as media, which not only overcomes the defects of the coring method by removing slag with water as the mediumbut also overcomes the defects of coring with wind as the medium.
Description
Technical field
The present invention relates to coal seam wind and the spray linked method that drills through coal core facility and drill through the coal core, be particularly suitable for the core of getting of weak seam.
Background technology
Gas is a kind of energy resources of preciousness, but coal and gas outstanding be the major hidden danger of Safety of Coal Mine Production always.Strengthening coal-bed gas extraction dynamics is to take precautions against the coal mine gas accident, makes full use of the effective measures of energy resources.The prerequisite of coal-bed gas extraction, strick precaution gas accident is fully to grasp the coal-bed gas tax to deposit rule, accurately measures coal seam gas-bearing capacity.Simply, fast, the method for measuring coal seam gas-bearing capacity more exactly is the direct determination method of down-hole coal bed boring and coring, the most critical link of this determination method is to get core, gets good and bad success or not and the order of accuarcy that is directly connected to coal seam gas-bearing capacity mensuration of core quality.The three elements that the core success is got in the coal seam are the integrality of coal core, guaranteeing the quality property and rapidity.But getting the core link and exactly also be coal bed drilling gets core directly to measure in all links of coal seam gas-bearing capacity the most difficult link, particularly weak seam bigger along layer boring and coring difficulty.Present adopts water as medium or wind to make medium along layer boring and coring usually.
Traditional aqueous medium coring process has good cooling effect to coring bit, is unlikely in getting the core process to make the coal core rotten because of the heat that coring bit and coal body friction generate, and the coal core is had the effect of well guaranteeing the quality.But, strong because the density of water is big to the souring of rib, and water makes it infiltrate the crack or the hole of coal to the adhesional wetting effect of coal body, reduced cementation, its surface tension is also accelerated the disintegration of coal, and the hole degree that collapses increases thereupon.The hole that collapses causes corer to be embedded in the core drill hole, make get the core failure or get the core long determination data error that causes post-set time big.Can not satisfy the rapidity of " getting core success three elements ", owing to collapsing the hole, get the core degree of depth and reduce accordingly simultaneously; The disintegration of coal diminishes the lumpiness of coal, and the desorption of mash gas rule changes and also can cause the measurement result error to strengthen, and can not satisfy the integrality of getting core success three elements.Secondly, water has also sealed the passage that releases of gas, having hindered gas releases, and in the adhesional wetting process, go out methane gas and form desorb from the coal body surface replacement, gas pressure is increased, and the fragmentation that hole wall is subjected to, the effect of dishing out increase, and spray orifice is also more violent, cause gas to be gushed out unusually easily, cause large tracts of land outage under gas disaster and the coal mine.
Wind medium coring process has changed collapse the easily shortcoming in hole of aqueous medium coring process, and the probability that coal core pipe is buried reduces, and gets core speed and improves greatly, gets the core degree of depth and also deepens greatly.But, the weakness of wind medium coring process maximum is got in the core process distinguished and admirable abundant inadequately to the drill bit cooling exactly, gets the heat that friction generates in the core process and causes that easily the coal core is burnt out, goes bad, and causes measurement result inaccurate, even cause spontaneous combustion of coal seam, cause the gas disaster to take place.
Summary of the invention
The purpose of this invention is to provide a kind of coal seam wind and the spray linked coal core facility that drill through, the cooling of its coring bit is good, and the coal core of taking-up can be complete and keeps primitive character.
Coal seam wind of the present invention and the spray linked coal core facility that drill through, the brill tail joint that the drillstock that comprises pneumatic drilling machine, is connected with pneumatic drilling machine and drilling rod, an end are connected the drillstock end, it is characterized in that: the other end that bores the tail joint is connected with the port of export of water atomization plant, and two entrance points of water atomization plant are connected with feed pipe with pressure ventilation pipe respectively; The front end of drilling rod is connected with corer.The present invention adds that by existing pneumatic drilling machine the water atomization plant of exploitation and corer constitute.
Described coal seam wind and the spray linked coal core facility that drill through, its described water atomization plant comprise spray chamber, be connected the pressure ventilation pipe joint of spray chamber one end, be connected the water supply pipe joint at spray chamber middle part and be connected the wind and the water smoke outlet connection of the spray chamber other end; Front end at water supply pipe joint is provided with nozzle, the middle part is provided with the water flow control valve door.
Described coal seam wind and the spray linked coal core facility that drill through, its described corer comprises the core barrel joint, the outer tube that rear end and core barrel joint middle part boss are connected, be fixed on the outer cutting drill bit of outer tube front end, the interior pipe that rear end and core barrel joint front portion are connected, interior cut drill in being fixed on before the pipe, be provided with four apertura lateralises at front end near outer tube, be provided with and corresponding four inboard aperture of apertura lateralis at front end near interior pipe, be provided with wind and water smoke passage at the core barrel joint along the axis, front end at wind and water smoke passage is connected with plug, the middle part of wind and water smoke passage be provided with outer tube and interior pipe between the via hole that communicates of interlayer, rear portion at wind and water smoke passage is provided with screw thread, and drilling rod is mated connection.
Another object of the present invention provides a kind of coal seam wind and the spray linked method that drills through the coal core, it can keep water and wind medium to get the advantage of core method, overcome the aqueous medium deslagging and get the shortcoming that core method and wind medium are got the core method, be specially adapted to measure the core of getting of weak seam gas bearing capacity.
Coal seam wind of the present invention and the spray linked method that drills through the coal core drill through the coal core and adopt above-mentioned facility, and its step is as follows:
(1) cloth hole, as getting the core hole, the degree of depth in hole is greater than 20m at driving face is met head on or the stope crossheading is arranged aperture φ 108～150mm emptying aperture;
(2) pipeline connects, coal seam wind is connected by the bellows chamber of pressure ventilation pipe with down-hole or ground air compressor with the spray linked pressure ventilation pipe joint that drills through the water atomization plant of coal core facility, air compressor provides the about 0.3～0.6MPa of pressure that presses wind, forms the about 3～4m of wind flow
3The major cycle MEDIA FLOW of/min enters spray chamber;
The water supply pipe joint of water atomization plant communicates with the pond, ground by feed pipe, provides the hydraulic pressure requirement to be higher than more than the blast 0.1MPa;
The wind of water atomization plant 5 is connected with the brill tail joint of water smoke outlet connection with drillstock 2 ends of pneumatic drilling machine 1; The front end of drilling rod is connected with corer;
(3) drill through the coal core, at first open and press the wind switch, fetching boiling water compresses switch again, and regulates the water flow control valve door and makes discharge be controlled at 4 * 10
-4～9 * 10
-4m
3/ min, the current nozzle by the front end of water supply pipe joint sprays into spray chamber current is carried out the atomizing first time; Humid air through atomizing for the first time forms moves in turbulent mode under the distinguished and admirable effect of high-speed motion by wind and water smoke outlet connection, during water smoke is carried out secondary-atomizing, form humid air; Then, starting rig slowly creeps into; The rig rotating speed is 20～30r/min, and rate of penetration 0.1～0.3m/min is till getting core and finishing;
(4) move back brill, move back before the brill at first occlusion pressure wind, close hydraulic pressure switch again, then, withdraw from drilling rod, take corer out of;
(5) whether evaluation coal core primitive character satisfies integrality, guaranteeing the quality property and rapidity requirement.
Coal seam wind and water smoke connection drill through the principle of coal core: to press wind is main deslagging circulatory mediator, add an amount of water smoke therein, make main deslagging circulatory mediator become moisture laden air, its density and water are than the density much smaller than water, thereby get can be to the adhesional wetting too of drill hole wall coal body in the core process, thereby cause the hole that collapses, also can not block the passage that releases of gas, get the same gas that makes of core method with the wind medium and release normally; The same terms leeward and spray linked maximum get the core degree of depth and get the core degree of depth near the wind medium, and wind and spray linkedly kept pressing wind to get the advantage that core Slagoff method and hydraulic pressure are got the core Slagoff method has overcome both shortcomings.
Because specific heat of water is higher than the specific heat of dry air, adds water and also have the very high latent heat of vaporization, so under the situation of humid air and dry air rising uniform temp, the humid air energy needed is far above dry air.
Dry air is during as medium, and 1 ℃ of energy needed W of the every rising of temperature is dried to be:
W
Do=V
Do* ρ
Do* i
Do(I)
＝3.5×1.293×1.0045＝4.55KJ/K
In the formula: V
Do-boring dry air flow is under 0.3～0.6MPa situation at blast, and wind flow is 3～4m
3/ min gets 3.5m
3/ min;
ρ
Do-dry air density is 1.293kg/m
3
i
DoThe average level pressure quality specific heat of-dry air is 1.0045KJ/ (kgK).
Humid air is during as medium, and the rising of temperature is a non-linear relation with absorbing heat, and the initial temperature of humid air is about 20 ℃, about the about 40 ℃ of temperature of the humid air temperature of discharge.Temperature rising energy needed W is:
W=V
Do* ρ
Do* (i
Do* Δ T+ (d
40-d
20) * i
d+ (d
40-d
20) * i
Steam)+V
Water* ρ
Water* i
Water* Δ T (II)
＝3.5×1.293×(1.0045×20+(5.199％-1.563％)×2501+(5.199％-1.563％)×1.85)+6.5×10-4×1000×4.187×20＝1047.06KJ
In the formula: i
dThe gasification latent heat of-water is 2501KJ/kg;
i
SteamThe average level pressure quality specific heat of-water at normal temperature steam is 1.85KJ/ (kgK);
V
Water-boring discharge is 4 * 10
-4～9 * 10
-4m
3/ min is averaged 6.5 * 10
-4m
3/ min;
The intensification scope of Δ T-humid air temperature is warmed up to about 40 ℃ for about 20 ℃ according to actual observation, so 20 ℃ of Δ T ≈;
ρ
WaterThe density of-water is 1000kg/m
3
i
WaterThe average level pressure quality specific heat of-water is 4.187KJ/ (kgK);
d
20The water capacity of-20 ℃ of humid air, kg/kg;
d
40The water capacity of-40 ℃ of humid air, kg/kg;
In the formula:
ρ
vThe actual water vapour quality that the contains in-unit volume air, kg/m
3
In the formula:
The relative humidity of φ-air;
P
aSaturated water vapor pressure under the-difference corresponding temperature, Pa;
The air themperature that T-is corresponding respectively, K;
ρ
dThe density of-dry air, kg/m
3
In the formula: P-atmospheric pressure, Pa.
Bringing formula (IV), (V) into formula (III) simplifies:
1 ℃ of energy needed W of humid air temperature-averaging rising
WetFor:
The hydraulic pressure that the present invention requires is greater than more than the blast 0.1MPa, and discharge is 4 * 10
-4～9 * 10
- 4m
3/ min, wind flow is 3～4m
3/ min, wind and spray linked weak seam under the about 0.3～0.6MPa condition of blast drill through coal core method, and humid air is compared the identical temperature that raises with dry air, and the energy of required absorption is respectively 52.35KJ and 4.55KJ, about 11.5 times.Cooling-down effect is obvious.Therefore, wind and spray linkedly drill through the effect that coal core method can reach good cold true drill bit.
The coring bit cooling of facility of the present invention is good, and the coal core energy of taking-up is complete and keep primitive character, is specially adapted to measure the core of getting of weak seam gas bearing capacity.Use facility of the present invention to drill through coal core method, kept water and wind medium to get the advantage of core method, can overcome the aqueous medium deslagging get the core method collapse easily hole, spray orifice, get that the core degree of depth is little, sample time is long, corer is buried the big shortcoming of probability, can overcome the wind medium again and get that the cooling of core method coring bit is not enough, the shortcoming of easy burn-out coal core.
Description of drawings
To be coal seam wind drill through the schematic diagram that coal core facility and air compressor machine are connected with the pond, ground with spray linked to Fig. 1.
Fig. 2 is the structural representation of water atomization chamber.
Fig. 3 is the structural representation of corer.
The specific embodiment
Coal seam wind of the present invention and the spray linked coal core facility that drill through are by existing pneumatic drilling machine, add that the water atomization plant of exploitation and corer constitute.
Pressure ventilation pipe joint 5-2 is connected the end of spray chamber 5-1, front end is provided with the middle part that water supply pipe joint that nozzle 5-5, middle part be provided with water flow control valve door 5-6 is connected spray chamber, wind and water smoke outlet connection 5-4 are connected the other end of spray chamber, promptly constitute coal seam wind and the spray linked water atomization plant 5 that drills through coal core facility; The pressure ventilation pipe joint 5-2 of water atomization plant is connected by the bellows chamber 10 of pipeline with down-hole or ground air compressor 9, and air compressor provides the about 0.3～0.6MPa of pressure that presses wind, forms the about 3～4m of wind flow
3The major cycle MEDIA FLOW of/min enters spray chamber 5-1; The water supply pipe joint 5-3 of water atomization plant communicates with pond, ground 11, utilize the down-hole to drill potential energy that the discrepancy in elevation between place and the pond, ground forms, hydraulic pressure is provided, and hydraulic pressure requires to be higher than more than the blast 0.1MPa, regulates water flow control valve door 5-6 and makes discharge be controlled at 4 * 10
-4～9 * 10
-4m
3/ min, current spray into spray chamber 5-1 by the nozzle 5-5 of the front end of water supply pipe joint; Utilize the pressure reduction between hydraulic pressure and the blast to be power, current are carried out the atomizing first time.Humid air through atomizing for the first time forms moves in turbulent mode under the distinguished and admirable effect of high-speed motion by wind and water smoke outlet connection 5-4, during water smoke is carried out secondary-atomizing, form humid air.
Leading section is provided with the rear end of the interior pipe 8-4 of four inboard aperture 8-7, is connected, the front end of pipe in interior cut drill 8-5 is fixed in the front portion of core barrel joint 8-1; Front end is provided with the rear end of the outer tube 8-2 of four apertura lateralis 8-6, is connected on the boss at core barrel joint middle part, cut drill bit 8-3 outward and be fixed on the outer tube front end; Plug 8-9 is connected at the core barrel joint along the wind of axis and the front end of water smoke passage 8-8, and the via hole 8-10 at the middle part of wind and water smoke passage communicates with interlayer between outer tube and the interior pipe, promptly constitutes coal seam wind and the spray linked corer 8 that drills through coal core facility; Corer 8 is a double-decker, adopts two-tube while cutting way, and interior cut drill 8-5 mainly cuts the core that produces coal, and pulverizes the coal body between the inner and outer pipes simultaneously; Outer cutting drill bit 8-3 mainly cuts hole wall, with the friction between reduction corer and the hole wall, and then reduces the heat of getting in the core process.Interior cut drill exceeds outer length of cutting drill bit should be suitable; It is long to exceed length, and outer drill bit can not can not well be lowered the temperature by externally interior drill bit in the drilling process fully in distinguished and admirable parcel; It is too short then because the distinguished and admirable of high-speed motion takes away the ickings that cuts easily for the turbulent motion state to exceed length, gets less than the coal core.
The brill tail joint 4 of drillstock 2 ends of pneumatic drilling machine 1 will be connected, be connected with water smoke outlet connection 5-4 with the wind of water atomization plant 5, the wind of the core barrel joint 8-1 of the front end of drilling rod 3 and corer 8 and the screw thread 8-11 of water smoke channel rear portion are connected, and promptly constitute coal seam wind and the spray linked coal core facility that drill through.
Adopt above-mentioned coal seam wind and the spray linked coal core facility that drill through to drill through coal core method, its step is as follows:
(1) cloth hole, as getting the core hole, the degree of depth in hole is greater than 20m at driving face is met head on or the stope crossheading is arranged aperture φ 108～150mm emptying aperture;
(2) pipeline connects, coal seam wind is connected by the bellows chamber 10 of pressure ventilation pipe 6 with down-hole or ground air compressor 9 with the spray linked pressure ventilation pipe joint 5-2 that drills through the water atomization plant of coal core facility, air compressor provides the about 0.3～0.6MPa of pressure that presses wind, forms the about 3～4m of wind flow
3The major cycle MEDIA FLOW of/min enters spray chamber 5-1;
The water supply pipe joint 5-3 of water atomization plant communicates with pond, ground 11 by feed pipe 7, provides the hydraulic pressure requirement to be higher than more than the blast 0.1MPa;
The wind of water atomization plant 5 is connected with the brill tail joint 4 of drillstock 2 ends of pneumatic drilling machine 1 with water smoke outlet connection 5-4; The front end of drilling rod 3 is connected with corer 8;
(3) drill through the coal core, at first open and press the wind switch, fetching boiling water compresses switch again, and regulates water flow control valve door 5-6 and makes discharge be controlled at 4 * 10
-4～9 * 10
-4m
3/ min, the current nozzle 5-5 by the front end of water supply pipe joint sprays into spray chamber 5-1 current is carried out the atomizing first time; Humid air through atomizing for the first time forms moves in turbulent mode under the distinguished and admirable effect of high-speed motion by wind and water smoke outlet connection 5-4, during water smoke is carried out secondary-atomizing, form humid air; Then, starting rig slowly creeps into; The rig rotating speed is 20～30r/min, and rate of penetration 0.1～0.3m/min is till getting core and finishing;
(4) move back brill, move back before the brill at first occlusion pressure wind, close hydraulic pressure switch again, then, withdraw from drilling rod, take corer out of;
(5) whether evaluation coal core primitive character satisfies integrality, guaranteeing the quality property and rapidity requirement.
In the process that drills through the coal core, deslagging medium-swiftly flowing humid air enters via hole 8-10 by core barrel joint 8-1 rear portion, the mobile ickings that can not carry away under the cutting in the interlayer of deslagging medium between outer tube and interior pipe.Simultaneously cold wet wind stream plays good cooling effect in interlayer.
Wet wind stream is the anchor ring type of flow between inside and outside brill, is not the sub-thread type of flow, has four inside and outside side openings in the corer side simultaneously, has enlarged cooling-down effect.
If the coal seam is harder, then can directly open plug 8-9, make the deslagging medium directly enter interior pipe and lower the temperature.
Claims (2)
1. coal seam wind and the spray linked coal core facility that drill through, the brill tail joint (4) that the drillstock (2) that comprises pneumatic drilling machine (1), is connected with pneumatic drilling machine and drilling rod (3), an end are connected the drillstock end, it is characterized in that: the other end that bores tail joint (4) is connected with the port of export of water atomization plant (5), and two entrance points of water atomization plant are connected with feed pipe (7) with pressure ventilation pipe (6) respectively; The front end of drilling rod (3) is connected with corer (8); Described water atomization plant (5) comprises spray chamber (5-1), be connected the pressure ventilation pipe joint (5-2) of spray chamber one end, be connected the water supply pipe joint at spray chamber middle part and be connected the wind and the water smoke outlet connection (5-4) of the spray chamber other end; Front end at water supply pipe joint is provided with nozzle (5-5), the middle part is provided with water flow control valve door (5-6); Described corer (8) comprises core barrel joint (8-1), the outer tube (8-2) that rear end and core barrel joint middle part boss are connected, be fixed on the outer cutting drill bit (8-3) of outer tube front end, the interior pipe (8-4) that rear end and core barrel joint front portion are connected, interior cut drill (8-5) in being fixed on before the pipe, be provided with four apertura lateralises (8-6) at front end near outer tube, be provided with and corresponding four inboard aperture of apertura lateralis (8-7) at front end near interior pipe, be provided with wind and water smoke passage (8-8) at the core barrel joint along the axis, front end at wind and water smoke passage is connected with plug (8-9), the middle part of wind and water smoke passage be provided with outer tube and interior pipe between the via hole (8-10) that communicates of interlayer, be provided with screw thread (8-11) at the rear portion of wind and water smoke passage, drilling rod (3) is mated connection.
2. coal seam wind and the spray linked method that drills through the coal core drill through the coal core and adopt the described facility of claim 1, and its step is as follows:
(1) cloth hole, as getting the core hole, the degree of depth in hole is greater than 20m at driving face is met head on or the stope crossheading is arranged aperture φ 108～150mm emptying aperture;
(2) pipeline connects, coal seam wind is connected by the bellows chamber (10) of pressure ventilation pipe (6) with down-hole or ground air compressor (9) with the spray linked pressure ventilation pipe joint (5-2) that drills through the water atomization plant of coal core facility, air compressor provides the about 0.3～0.6MPa of pressure that presses wind, forms the about 3～4m of wind flow
3The major cycle MEDIA FLOW of/min enters spray chamber (5-1);
The water supply pipe joint of water atomization plant communicates with pond, ground (11) by feed pipe (7), provides the hydraulic pressure requirement to be higher than more than the blast 0.1MPa;
The wind of water atomization plant (5) is connected with the brill tail joint (4) of water smoke outlet connection (5-4) with drillstock (2) end of pneumatic drilling machine (1); The front end of drilling rod (3) is connected with corer (8);
(3) drill through the coal core, at first open and press the wind switch, fetching boiling water compresses switch again, and regulates water flow control valve door (5-6) and makes discharge be controlled at 4 * 10
-4～9 * 10
-4m
3/ min, the current nozzle (5-5) by the front end of water supply pipe joint sprays into spray chamber (5-1) current is carried out the atomizing first time; Humid air through atomizing for the first time forms moves in turbulent mode under the distinguished and admirable effect of high-speed motion by wind and water smoke outlet connection (5-4), during water smoke is carried out secondary-atomizing, form humid air; Then, starting rig slowly creeps into; The rig rotating speed is 20～30r/min, and rate of penetration 0.1～0.3m/min is till getting core and finishing;
(4) move back brill, move back before the brill at first occlusion pressure wind, close hydraulic pressure switch again, then, withdraw from drilling rod, take corer out of;
(5) whether evaluation coal core primitive character satisfies integrality, guaranteeing the quality property and rapidity requirement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100781114A CN101220735B (en) | 2007-01-10 | 2007-01-10 | Coal seam wind and spray linked coal core drilling tools and its method for coal core drilling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007100781114A CN101220735B (en) | 2007-01-10 | 2007-01-10 | Coal seam wind and spray linked coal core drilling tools and its method for coal core drilling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101220735A CN101220735A (en) | 2008-07-16 |
| CN101220735B true CN101220735B (en) | 2011-02-09 |
Family
ID=39630782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100781114A Expired - Fee Related CN101220735B (en) | 2007-01-10 | 2007-01-10 | Coal seam wind and spray linked coal core drilling tools and its method for coal core drilling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101220735B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975038B (en) * | 2010-10-09 | 2013-01-16 | 东北石油大学 | Device for sampling mud rock by cooling air and rock sample sampling method thereof |
| CN102797425B (en) * | 2012-08-27 | 2014-12-10 | 王清刚 | Wind-water linked atomized dust removing and cleaning device for coal bed drilling exploration |
| CN103306621B (en) * | 2013-07-02 | 2015-10-07 | 中煤科工集团西安研究院有限公司 | A kind of tunnel creeps into uses atomizing generator |
| CN103703925B (en) * | 2013-12-05 | 2015-11-25 | 冯政 | The method of manufacture and use thereof of lotus rhizome harvester |
| CN103868758A (en) * | 2014-04-02 | 2014-06-18 | 株洲冶炼集团股份有限公司 | Pneumatic sampler |
| CN104458318A (en) * | 2014-11-17 | 2015-03-25 | 中国矿业大学 | Pneumatic press-in soft coal seam micro disturbance sampling device |
| CN106194168B (en) * | 2016-09-09 | 2022-03-01 | 河南理工大学 | Coal seam low-temperature fixed-point ice-sealed sampling device and using method thereof |
| CN109899005B (en) * | 2019-03-22 | 2020-03-10 | 淮南矿业(集团)有限责任公司 | Casing for borehole gas extraction |
| CN114396239B (en) * | 2022-01-29 | 2023-06-13 | 深圳大学 | Pressure-maintaining gas-maintaining corer and high-pressure pipe safety pressure relief and sealing drainage transfer pipe sleeve |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048509U (en) * | 1988-11-16 | 1989-11-29 | 长春地质学院 | Hollow pneumatic cable core-taking hammer |
| CN2063572U (en) * | 1990-03-16 | 1990-10-10 | 核工业西况地质勘探局探矿研究室 | Countercirculation core drill with water controlling means |
| CN2097903U (en) * | 1991-06-08 | 1992-03-04 | 尹代华 | Automatic smoke-cancel duster for mine |
| CN2148846Y (en) * | 1992-11-23 | 1993-12-08 | 盛传曙 | Wind current decontamination plant |
| CN2180784Y (en) * | 1992-09-26 | 1994-10-26 | 煤炭科学研究总院重庆分院 | Mining air curtain dust fall device |
| CN2381771Y (en) * | 1999-03-19 | 2000-06-07 | 陕西省一八六煤田地质勘探队 | Coring device for gas exploration in coal bed |
| CN2397253Y (en) * | 1999-08-04 | 2000-09-20 | 煤炭科学研究总院重庆分院 | High pressure sprayer |
| JP2002295169A (en) * | 2001-03-29 | 2002-10-09 | Chuo Kaihatsu Kk | Coring method and coring apparatus |
| CN2627218Y (en) * | 2003-06-20 | 2004-07-21 | 崔刚明 | Soft coal seam drilling dust-proof equipment |
| CN2771479Y (en) * | 2005-01-17 | 2006-04-12 | 新汶矿业集团有限责任公司 | Coal-mining drilling machine |
-
2007
- 2007-01-10 CN CN2007100781114A patent/CN101220735B/en not_active Expired - Fee Related
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2048509U (en) * | 1988-11-16 | 1989-11-29 | 长春地质学院 | Hollow pneumatic cable core-taking hammer |
| CN2063572U (en) * | 1990-03-16 | 1990-10-10 | 核工业西况地质勘探局探矿研究室 | Countercirculation core drill with water controlling means |
| CN2097903U (en) * | 1991-06-08 | 1992-03-04 | 尹代华 | Automatic smoke-cancel duster for mine |
| CN2180784Y (en) * | 1992-09-26 | 1994-10-26 | 煤炭科学研究总院重庆分院 | Mining air curtain dust fall device |
| CN2148846Y (en) * | 1992-11-23 | 1993-12-08 | 盛传曙 | Wind current decontamination plant |
| CN2381771Y (en) * | 1999-03-19 | 2000-06-07 | 陕西省一八六煤田地质勘探队 | Coring device for gas exploration in coal bed |
| CN2397253Y (en) * | 1999-08-04 | 2000-09-20 | 煤炭科学研究总院重庆分院 | High pressure sprayer |
| JP2002295169A (en) * | 2001-03-29 | 2002-10-09 | Chuo Kaihatsu Kk | Coring method and coring apparatus |
| CN2627218Y (en) * | 2003-06-20 | 2004-07-21 | 崔刚明 | Soft coal seam drilling dust-proof equipment |
| CN2771479Y (en) * | 2005-01-17 | 2006-04-12 | 新汶矿业集团有限责任公司 | Coal-mining drilling machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101220735A (en) | 2008-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101220735B (en) | Coal seam wind and spray linked coal core drilling tools and its method for coal core drilling | |
| CN105201481B (en) | Liquid CO2Phase transformation multiple spot fracturing anti-reflection method | |
| WO2016110185A1 (en) | Method for gas extraction alternating oscillating pulse high energy gas extraction with thermal injection | |
| CN104563958B (en) | A kind of hole sealing device | |
| CN104314482B (en) | Closed type helical hole-protecting drill and using method thereof for drilling of soft coal bed | |
| CN109931060A (en) | A kind of gas-liquid combination orientation fracturing device and method | |
| CN105888540B (en) | A kind of drilling method of drilling | |
| CN103046948A (en) | Device and method for preventing coal drilling and cutting or gas emission | |
| CN104764625B (en) | A kind of coal seam low temperature sampler and method | |
| CN107642376B (en) | A kind of laser drilling cuts integration and strengthens gas drainage system and method | |
| CN106968705A (en) | A kind of hot cold punching of drainage from coal seam drilling breaks up coal permeability improvement device and anti-reflection method | |
| CN109736877A (en) | A kind of concordant drilling pipe-following drilling mash gas extraction construction method | |
| CN106939766A (en) | A kind of hot cold shock three-level breaks device for coal and implementation | |
| CN102587883B (en) | Method for quenching underground coal gasifier | |
| CN114000858B (en) | Combinable multi-tube liquid carbon dioxide fracturing device and application method thereof | |
| CN206722770U (en) | Spiral groove type drilling rod | |
| CN108775245A (en) | A kind of controllable pressure injection apparatus and its method based on hydraulic accumulator | |
| CN206957582U (en) | Become track drilling apparatus | |
| CN113266347A (en) | Near-bit coal seam gas parameter while-drilling comprehensive measurement device and method | |
| CN114165177B (en) | Low-temperature air composite drilling and orifice negative pressure dust removal system | |
| CN204457620U (en) | Intelligent sliding sleeve of horizontal well | |
| CN207988934U (en) | A kind of flammable ice-cold drilling apparatus | |
| CN204200238U (en) | A kind of Novel down-hole height of water flowing fractured zone observation probe of real-time probing | |
| CN206722755U (en) | A kind of hot cold shock three-level breaks device for coal | |
| CN209485791U (en) | A kind of negative pressure low temperature coal seam gas-bearing capacity measurement sampler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: COAL SCIENTIFIC RESEARCH INSTITUTE CHONGQING INSTI Free format text: FORMER NAME: CHONGQING BRANCH, COAL SCIENCE RESEARCH GENERAL INST. Owner name: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RE Free format text: FORMER NAME: COAL SCIENTIFIC RESEARCH INSTITUTE CHONGQING INSTITUTE Owner name: CHINA COAL TECHNOLOGY ENGINEERING GROUP CHONGQING Free format text: FORMER NAME: CHINA COAL SCIENCE AND INDUSTRY GROUP CHONGQING RESEARCH INSTITUTE |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee after: Chongqing Research Institute of China Coal Technology & Engineering Group Corp. Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee before: Chongqing Institute of Coal Science Research Institute Address after: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee after: Chongqing Institute of Coal Science Research Institute Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee before: Chongqing Branch of China Coal Research Institute |
|
| CP03 | Change of name, title or address |
Address after: 400039 Chongqing Jiulongpo Branch City Road No. 6 Patentee after: CCTEG CHONGQING RESEARCH INSTITUTE Co.,Ltd. Address before: 400037, No. three village, 55 bridge, Shapingba District, Chongqing Patentee before: Chongqing Research Institute of China Coal Technology & Engineering Group Corp. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110209 Termination date: 20160110 |