CN106869834A - A kind of coal bed drilling drilling hole dust collector device - Google Patents
A kind of coal bed drilling drilling hole dust collector device Download PDFInfo
- Publication number
- CN106869834A CN106869834A CN201510913131.3A CN201510913131A CN106869834A CN 106869834 A CN106869834 A CN 106869834A CN 201510913131 A CN201510913131 A CN 201510913131A CN 106869834 A CN106869834 A CN 106869834A
- Authority
- CN
- China
- Prior art keywords
- drilling
- dust
- coal bed
- collector device
- dust collector
- 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.)
- Pending
Links
- 239000000428 dust Substances 0.000 title claims abstract description 68
- 238000005553 drilling Methods 0.000 title claims abstract description 52
- 239000003245 coal Substances 0.000 title claims abstract description 20
- 238000007599 discharging Methods 0.000 claims abstract description 7
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 4
- 241000282693 Cercopithecidae Species 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 9
- 239000002817 coal dust Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 6
- 239000002245 particle Substances 0.000 abstract description 6
- 239000003818 cinder Substances 0.000 abstract description 4
- 238000010276 construction Methods 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000005484 gravity Effects 0.000 abstract description 4
- 238000010079 rubber tapping Methods 0.000 abstract description 4
- 230000006698 induction Effects 0.000 abstract description 3
- 239000007921 spray Substances 0.000 description 4
- 239000006260 foam Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000033228 biological regulation Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 239000008400 supply water Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
- E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
- E21B21/015—Means engaging the bore entrance, e.g. hoods for collecting dust
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04F—PUMPING OF FLUID BY DIRECT CONTACT OF ANOTHER FLUID OR BY USING INERTIA OF FLUID TO BE PUMPED; SIPHONS
- F04F5/00—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow
- F04F5/02—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid
- F04F5/04—Jet pumps, i.e. devices in which flow is induced by pressure drop caused by velocity of another fluid flow the inducing fluid being liquid displacing elastic fluids
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
A kind of coal bed drilling drilling hole dust collector device, is mainly made up of Water-jet dust remover, aperture dust collect plant and connecting line etc..The dust produced in firedamp taking-out discharging drilling work progress is under pressure wind effect, discharged from hole of the bottom hole with high speed between drilling rod and rib, into aperture dust collect plant, the dust of wherein larger particles settles down under gravity, is entered in cinder collecting vessel through lower tapping hole.Meanwhile, pressure water stream is sprayed by the nozzle of Water-jet dust remover, forms high-speed jet, induction chamber pressure is set to reduce to form negative pressure of vacuum, the coal dust of smaller particle in dust collect plant is pumped to suction chamber, and after mixing in trunnion entrance and trunnion with current, ditch is expelled to through anemostat outlet.Coal bed drilling drilling hole dust collector device directly can be worked using underground water supply inner pipe water pressure, thus energy consumption is small；Simple structure, small volume, convenient disassembly, small, good dedusting effect is influenceed on drilling construction.
Description
Technical field
The present invention relates to a kind of coal bed drilling drilling hole dust collector device.
Background technology
Gas suction by drilling is one of most effectual way of preventing and treating coal and gas prominent accident, and with the increase of coal and gas prominent seam mining depth and mining rate, Intensity of coal-gas burst is increasing, so that the quantity of firedamp taking-out discharging drilling is sharply increased.According to wet boring, the failures such as the hole that collapses, plug-hole, bit freezing are easily caused, have a strong impact on gas drainage results.Therefore, gas discharge in mine drilling construction mainly use the pneumatic deslagging of dry drilling, but its produce a large amount of dust, bring hidden danger to mine safety production and personnel health.The coal dust produced during dry drilling can individually explode in the presence of completely no gas, small-scale gas explosion is converted into the mixed explosion of gas and coal dust, cause continuous blast；Meanwhile, coal dust also causes serious harm to the healthy of miner, both at home and abroad because the miner that pneumoconiosis causes disable it is very surprising with death toll；In addition, dust concentration crosses conference influence vision, workmen's operational error is caused.
At present, mainly there are spray for dust suppression, foam dust-removing and deduster dedusting etc. in colliery for depositing dust, dust suppression that dry drilling is taken, but there is problems with implementation process:The efficiency of dust collection of spray dust remover increases and improves with pressure of supply water, and bring that energy consumption is big, device parts easy break-down, short life problem compared with hydraulic pressure high, and nozzle diameter size is larger to dust catching influential effect, and diameter is too small easily causes blocking, foam dust-removing is higher to foam compound formula and adding proportion requirement, and operating procedure is numerous and diverse；Deduster volume is big, required pump pressure is high, energy consumption is big, underground migration inconvenience.These problems limit its range of application to a certain extent.Therefore, 70%~80% coal bed drilling job site is sprayed and the simple device for reducing dust such as dust-break water curtain using only aperture, and drilling construction place coal dust flies upward, and the mean dust concentration in its return is up to more than 350mg/m3, far beyond《Safety regulations in coal mine》Regulation.
The content of the invention
To solve the dust pollution question that dry drilling is produced, the present invention devises a kind of coal bed drilling drilling hole dust collector device.
The technical solution adopted for the present invention to solve the technical problems is：Coal bed drilling drilling hole dust collector device is mainly made up of Water-jet dust remover, aperture dust collect plant and connecting line etc..
The operation principle of coal bed drilling drilling hole dust collector device is：The dust produced in firedamp taking-out discharging drilling work progress is under pressure wind effect, discharged from hole of the bottom hole with high speed between drilling rod and rib, into aperture dust collect plant, the dust of wherein larger particles settles down under gravity, is entered in cinder collecting vessel through lower tapping hole.Simultaneously, pressure water stream is sprayed by the nozzle 8 of Water-jet dust remover, form high-speed jet, induction chamber pressure is set to reduce to form negative pressure of vacuum, the coal dust of smaller particle in dust collect plant is pumped to suction chamber, and after mixing in trunnion entrance and trunnion with current, ditch to ditch is expelled to through anemostat outlet.
The Water-jet dust remover mainly by nozzle, suction chamber, trunnion, anemostat and takes out the structure compositions such as dirt pipe, and the concentricity of nozzle, trunnion and anemostat is ensured in general assembly.The nozzle mainly has angle of throat α, outlet diameter d using taper contracting noz(zle), its geometric parameter1And cylindrical section l.Angle of throat α chooses maximum stream flow coefficient value corresponding 13.5.
Q0It is working flow volume flow, m3/s；μ is discharge coefficient, takes 0.95；G is acceleration of gravity, m/s2；Δp0It is operating pressure, Pa；γ is working flow unit weight, kN/m3.The trunnion is the part that working flow is mixed with the dusty gas of suction, using the short trunnion of single-stage.
d1It is nozzle outlet diameter, mm；ε is constriction coefficient, when angle of throat α=13.5 °, ε ≈ 1；My is optimal area ratio, according to h=Δs pc/Δp0, using my=f (h) curves are tried to achieve, Δ pcIt is outlet pressure, Pa.The monkey mouth is away from LcI.e. jet expansion section to trunnion inlet section distance, in (0.5~2) d1In the range of choose.The anemostat uses uniform angle of flare, L longdCan be by (4~7) (dc- d2) chosen.
The dust Control that the aperture dust collect plant is produced when firedamp taking-out discharging drilling is constructed is in relatively closed space, due to taking out dirt using negative pressure, so dust collect plant need not be higher seal request, it is main consider with rig be reliably connected and process spray orifice, stick of tool when can conveniently dismounting or opening.
The beneficial effects of the invention are as follows：Coal bed drilling drilling hole dust collector device directly can be worked using underground water supply inner pipe water pressure, thus energy consumption is small；Simple structure, small volume, convenient disassembly, small, good dedusting effect is influenceed on drilling construction.
Brief description of the drawings
The present invention is further described below in conjunction with the accompanying drawings.
Fig. 1 is dust arrester structure composition and connection figure.
Fig. 2 is Water-jet dust remover structural representation.
Fig. 3 is aperture dust collect plant structure chart.
In figure, 1- Water-jet dust removers, 2- takes out dirt pipe, 3- apertures dust collect plant, 4- cinders mobile phone bucket, 5- sweep-up pipes, 6- suction chambers, 7- nozzles, 8- trunnions, 9- anemostats, 10- dust gathering arresters, 11- dust seal devices, 12- lower tapping holes；A water receiving pipes, B to gutter, C connects and takes out dirt pipe.
Specific embodiment
In Fig. 1, coal bed drilling drilling hole dust collector device is mainly made up of Water-jet dust remover 1, aperture dust collect plant 3 and connecting line etc..The dust produced in firedamp taking-out discharging drilling work progress is under pressure wind effect, discharged from hole of the bottom hole with high speed between drilling rod and rib, into aperture dust collect plant 3, the dust of wherein larger particles settles down under gravity, is entered in cinder collecting vessel through lower tapping hole.Simultaneously, pressure water stream is sprayed by the nozzle 7 of Water-jet dust remover 1, form high-speed jet, induction chamber pressure is set to reduce to form negative pressure of vacuum, the coal dust of smaller particle in dust collect plant is pumped to suction chamber 6, and after mixing in the entrance of trunnion 8 and trunnion 8 with current, ditch to ditch is expelled to through anemostat outlet.
In fig. 2, the Water-jet dust remover 1 mainly by nozzle 7, suction chamber 6, trunnion 8, anemostat 9 and takes out the structure compositions such as dirt pipe 2, and the concentricity of nozzle 7, trunnion 8 and anemostat 9 is ensured in general assembly.The nozzle 7 uses taper contracting noz(zle), the trunnion 8 to use the short trunnion of single-stage, the anemostat 9 to use uniform angle of flare.
In figure 3, the dust Control that aperture dust collect plant 3 is produced when firedamp taking-out discharging drilling is constructed is in relatively closed space, due to taking out dirt using negative pressure, so dust collect plant need not be higher seal request, it is main consider with rig be reliably connected and process spray orifice, stick of tool when can conveniently dismounting or opening.
Claims (6)
1. a kind of coal bed drilling drilling hole dust collector device, it is characterized in that：Mainly it is made up of Water-jet dust remover, aperture dust collect plant and connecting line etc..
2. coal bed drilling drilling hole dust collector device according to claim 1, it is characterized in that the Water-jet dust remover is main by nozzle, suction chamber, trunnion, anemostat and to take out the structure compositions such as dirt pipe.
3. coal bed drilling drilling hole dust collector device according to claim 2, it is characterized in that the nozzle uses taper contracting noz(zle).
4. coal bed drilling drilling hole dust collector device according to claim 2, it is characterized in that the monkey mouth is away from LcI.e. jet expansion section to trunnion inlet section distance, in (0.5~2) d1In the range of choose.
5. coal bed drilling drilling hole dust collector device according to claim 2, it is characterized in that the anemostat uses uniform angle of flare, L longdCan be by (4~7) (dc- d2) chosen.
6. coal bed drilling drilling hole dust collector device according to claim 1, it is characterized in that the dust Control that the aperture dust collect plant is produced when firedamp taking-out discharging drilling is constructed is in relatively closed space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510913131.3A CN106869834A (en) | 2015-12-11 | 2015-12-11 | A kind of coal bed drilling drilling hole dust collector device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510913131.3A CN106869834A (en) | 2015-12-11 | 2015-12-11 | A kind of coal bed drilling drilling hole dust collector device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106869834A true CN106869834A (en) | 2017-06-20 |
Family
ID=59237784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510913131.3A Pending CN106869834A (en) | 2015-12-11 | 2015-12-11 | A kind of coal bed drilling drilling hole dust collector device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106869834A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605528A (en) * | 2017-09-30 | 2018-01-19 | 阳泉煤业（集团）有限责任公司 | A kind of boring method for suppressing driving face dust |
| CN108868671A (en) * | 2018-08-24 | 2018-11-23 | 宿州金地工贸有限责任公司 | A kind of fortune envelope pumping integration dust-removing device for wind power slag-discharging drilling machine |
| CN109505543A (en) * | 2018-12-29 | 2019-03-22 | 徐州吉安矿业科技有限公司 | Wet-type drill way dust collector based on aerodynamic |
| CN109779561A (en) * | 2019-03-12 | 2019-05-21 | 辽宁工程技术大学 | A blowout prevention and dust removal device for underground boreholes in coal mines |
| CN110566142A (en) * | 2019-09-03 | 2019-12-13 | 辽宁省有色地质一〇一队有限责任公司 | Orifice dust collecting device |
| CN111101882A (en) * | 2019-12-19 | 2020-05-05 | 微山金源煤矿 | Drilling cuttings collecting and dust removing device |
| CN112696224A (en) * | 2020-12-11 | 2021-04-23 | 长沙矿山研究院有限责任公司 | Negative pressure balance drop shaft dust removal method |
| CN113685150A (en) * | 2021-09-30 | 2021-11-23 | 太原理工大学 | Dust removal device for underground orifice |
| CN116950707A (en) * | 2023-08-10 | 2023-10-27 | 安徽理工大学 | Portable coal mine support drilling dust control and removal device and dust removal method |
-
2015
- 2015-12-11 CN CN201510913131.3A patent/CN106869834A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107605528A (en) * | 2017-09-30 | 2018-01-19 | 阳泉煤业（集团）有限责任公司 | A kind of boring method for suppressing driving face dust |
| CN108868671A (en) * | 2018-08-24 | 2018-11-23 | 宿州金地工贸有限责任公司 | A kind of fortune envelope pumping integration dust-removing device for wind power slag-discharging drilling machine |
| CN109505543A (en) * | 2018-12-29 | 2019-03-22 | 徐州吉安矿业科技有限公司 | Wet-type drill way dust collector based on aerodynamic |
| CN109779561A (en) * | 2019-03-12 | 2019-05-21 | 辽宁工程技术大学 | A blowout prevention and dust removal device for underground boreholes in coal mines |
| CN109779561B (en) * | 2019-03-12 | 2023-12-26 | 辽宁工程技术大学 | Colliery is drilling in pit prevents spouting dust collector |
| CN110566142A (en) * | 2019-09-03 | 2019-12-13 | 辽宁省有色地质一〇一队有限责任公司 | Orifice dust collecting device |
| CN110566142B (en) * | 2019-09-03 | 2024-05-03 | 辽宁省有色地质一〇一队有限责任公司 | Orifice dust collecting device |
| CN111101882A (en) * | 2019-12-19 | 2020-05-05 | 微山金源煤矿 | Drilling cuttings collecting and dust removing device |
| CN112696224A (en) * | 2020-12-11 | 2021-04-23 | 长沙矿山研究院有限责任公司 | Negative pressure balance drop shaft dust removal method |
| CN113685150A (en) * | 2021-09-30 | 2021-11-23 | 太原理工大学 | Dust removal device for underground orifice |
| CN116950707A (en) * | 2023-08-10 | 2023-10-27 | 安徽理工大学 | Portable coal mine support drilling dust control and removal device and dust removal method |
| CN116950707B (en) * | 2023-08-10 | 2024-02-27 | 安徽理工大学 | Portable coal mine support drilling dust control and removal device and dust removal method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106869834A (en) | A kind of coal bed drilling drilling hole dust collector device | |
| CN101943021B (en) | Compressing-deslagging-drilling dust remover for coal pits | |
| CN103046948B (en) | Device and method for preventing coal drilling and cutting or gas emission | |
| CN102102497B (en) | Blowout prevention and dust prevention device | |
| CN206158627U (en) | Coal mine pressure wind dust suppression device that drills | |
| CN116537865B (en) | Annular gap injection spray dust removal device and dust removal method | |
| CN109779561B (en) | Colliery is drilling in pit prevents spouting dust collector | |
| CN102042026A (en) | Dense shallow hole dust catcher for coal mines | |
| CN203463049U (en) | Dust-settling device for wind deslagging drilling in underground coal mine | |
| CN201310373Y (en) | Coal gas purifier for safety protection system for drilling and spraying orifice | |
| CN107313731A (en) | A kind of hell is calmed the anger water jet blowing and drawing type dust arrester | |
| CN204552656U (en) | Mining wind power ganged dedusting blowout hookup | |
| CN104373064A (en) | Wet dust removing system of coal mine gas drainage borehole | |
| CN103161415A (en) | Negative pressure drilling system | |
| CN203412533U (en) | Wet dust removal system for coal-mine gas pumping-exhaust drill hole | |
| CN209761380U (en) | A blowout prevention and dust removal device for underground coal mine drilling | |
| CN110374665B (en) | Gas collection device for extraction drilling of extremely soft coal seam and use method | |
| CN206338031U (en) | A kind of underground self-advancing type high-pressure abrasive material gas jet drilling prosthetic device | |
| CN208546149U (en) | A kind of gas injection formula coal bed drilling drilling hole dust collector device | |
| CN105401943B (en) | A kind of soft rock fully mechanized mining is calmed the anger water air-breathing water curtain dust fall device | |
| CN208650903U (en) | A kind of comprehensive pick face dust guard of novel air way | |
| CN202001050U (en) | Gas dust catcher for coal mine | |
| CN203879533U (en) | Orifice dust removal device for coal seam drilled hole | |
| CN112228068A (en) | Inert gas drilling and slag discharging equipment and method | |
| CN203067017U (en) | Device for preventing spraying of coal or gas in drilling and cutting |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170620 |