CN109025814A - A kind of working in driving face of coal mine prospecting by boring protective device - Google Patents
A kind of working in driving face of coal mine prospecting by boring protective device Download PDFInfo
- Publication number
- CN109025814A CN109025814A CN201810852797.6A CN201810852797A CN109025814A CN 109025814 A CN109025814 A CN 109025814A CN 201810852797 A CN201810852797 A CN 201810852797A CN 109025814 A CN109025814 A CN 109025814A
- Authority
- CN
- China
- Prior art keywords
- vacuum tank
- working
- coal mine
- driving face
- protective device
- 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
- 239000003245 coal Substances 0.000 title claims abstract description 29
- 230000001681 protective effect Effects 0.000 title claims abstract description 15
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 238000005553 drilling Methods 0.000 claims abstract description 15
- 239000000428 dust Substances 0.000 claims abstract description 14
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 210000000481 breast Anatomy 0.000 claims abstract description 4
- 229910001220 stainless steel Inorganic materials 0.000 claims description 6
- 239000010935 stainless steel Substances 0.000 claims description 6
- 239000000565 sealant Substances 0.000 claims description 4
- 239000005341 toughened glass Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 239000000843 powder Substances 0.000 abstract description 4
- 239000007789 gas Substances 0.000 description 22
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000505 pernicious effect Effects 0.000 description 2
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel 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
- E21B7/00—Special methods or apparatus for drilling
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
-
- 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
- E21B15/00—Supports for the drilling machine, e.g. derricks or masts
- E21B15/003—Supports for the drilling machine, e.g. derricks or masts adapted to be moved on their substructure, e.g. with skidding means; adapted to drill a plurality of wells
-
- 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
-
- 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
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/063—Arrangements for treating drilling fluids outside the borehole by separating components
-
- 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
- E21B21/06—Arrangements for treating drilling fluids outside the borehole
- E21B21/07—Arrangements for treating drilling fluids outside the borehole for treating dust-laden gaseous fluids
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of working in driving face of coal mine prospecting by boring protective devices, including substrate and it is set to the self-locking universal wheels of base plate bottom two sides, first vacuum tank and the second vacuum tank are installed on the substrate, workbench is equipped at the top of the upright bar, drilling machine ontology is installed at the top of the workbench, the workbench side is equipped with cover plate close to bit location, the shroud floor is equipped with the conduit being connected with the first vacuum tank, solenoid valve is installed on the conduit, it is connected by snorkel between first vacuum tank and second vacuum tank and between second vacuum tank and second vacuum tank, the first vacuum tank bosom position is equipped with dust-filtering net, the present invention, which can play the role of protecting well, blocks, can quickly by the gas leaked out and drilling when the adsorbing powder dust that generates to vacuum It is collected in tank, reduces the leakage of gas and dust, not only recycled gas resources, but also reduce dust harzard.
Description
Technical field
The present invention relates to coal mine field, specially a kind of working in driving face of coal mine prospecting by boring protective device.
Background technique
Coal mine is the mankind in the region of the mining area exploitation coal resources rich in coal, is generally divided into underground mine and outdoor coal
Mine.When coal seam is remote from earth's surface, it is typically chosen to underground and digs tunnel digging coal, this is underground mine.When coal seam is away from earth's surface
Distance it is close when, be typically chosen directly removing surface soil layer excavate coal, this is open coal mine.
Before coal mining, need to carry out prospecting by boring to development end, during prospecting by boring, drilling machine position is not prevented
Guard mechanism is protected, the rubble splashing that when drilling generates be easy to cause damage to equipment, when gas leakage situation occurs, generally adopts
It is handled with the mode that blower is quickly drained, not only wastes resource, gas and dust in distinguished and admirable discharge process, or more
Or certain harm can be all generated to staff less.
Summary of the invention
The purpose of the present invention is to provide a kind of working in driving face of coal mine prospecting by boring protective devices, by close to bit location
Cover plate structure is set, and the elastic force of elastic telescopic bag structure offer is set on cover plate, cover plate can be made to be attached to development end
Shi Wending, while can play the role of protecting well to heading equipment using cover plate structure and block, utilize negative-pressure adsorption original
Reason, can quickly by the gas leaked out and drilling when the adsorbing powder dust to vacuum tank that generates in be collected, reduce gas
With the leakage of dust, gas resources have not only been recycled, but also have reduced dust harzard, have improved the security performance of prospecting by boring,
To solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of working in driving face of coal mine prospecting by boring protective device,
Including substrate and it is set to the self-locking universal wheels of base plate bottom two sides, the substrate top passes through the branch of hydraulic device output end
Fagging is connected with upright bar, and the first vacuum tank and the second vacuum tank are equipped on the substrate, and first vacuum tank is equipped with one group,
Second vacuum tank is at least arranged five groups, and workbench is equipped at the top of the upright bar, is equipped with brill at the top of the workbench
Machine ontology, drilling machine ontology one end are equipped with drill bit, and the workbench side is equipped with cover plate, the cover plate close to bit location
It is equipped with elastic telescopic bag and gas alarm, the shroud floor is equipped with the conduit being connected with the first vacuum tank, described to lead
Solenoid valve is installed on pipe, is equipped with air inlet/outlet, first vacuum tank at the top of first vacuum tank and the second vacuum tank
It is connected by snorkel between second vacuum tank and between second vacuum tank and second vacuum tank,
First vacuum tank and the second vacuum tank side are equipped with discharge outlet, and gate valve, and discharge outlet end are equipped on the discharge outlet
Portion is welded with flange, and the first vacuum tank bosom position is equipped with dust-filtering net.
Preferably, the hydraulic device includes hydraulic cylinder and the piston rod that hydraulic cylinder output end is arranged in, the hydraulic cylinder
It is installed on substrate, the piston rod end is connected with support plate.
Preferably, the horn-like structure of the cover plate, the elastic telescopic bag are covered with sealant layer in cover plate link position.
Preferably, the air inlet/outlet position at the top of first vacuum tank and the second vacuum tank is equipped with plunger, described logical
Tracheae one end is arranged through plunger.
Preferably, first vacuum tank and the second vacuum tank surface are mounted on air gauge, and the air gauge surface is set
There is tempered glass cover.
Preferably, the substrate side is equipped with bracket, is cased with stainless steel sheath on the bracket.
Preferably, two groups of link blocks are installed on the stainless steel sheath, offer location hole on the link block.
Preferably, the dust-filtering net is fixed on inside the first vacuum tank down through convex block, and the convex block is using weldering
The mode of connecing is fixed on the first vacuum pot sidewall.
Compared with prior art, the beneficial effects of the present invention are:
1, the present invention is by being arranged cover plate structure close to bit location, and elastic telescopic bag structure is arranged on cover plate and mentions
The elastic force of confession is stablized when cover plate can be made to be attached to development end, while can be played very to heading equipment using cover plate structure
The effect that good protection is blocked；
2, by introducing second very by conduit the first vacuum tank of access, then by the first vacuum tank in shroud floor side
In slack tank, using negative-pressure adsorption principle, can quickly by the gas leaked out and drilling when the adsorbing powder dust that generates to vacuum
It is collected in tank, reduces the leakage of gas and dust, not only recycled gas resources, but also reduce dust harzard, improved
The security performance of prospecting by boring.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the first vacuum tank of the invention and the second vacuum tank partial top structural schematic diagram；
Fig. 3 is the first vacuum tank schematic diagram of internal structure of the invention.
In figure: 1 substrate, 2 self-locking universal wheels, 3 hydraulic devices, 301 hydraulic cylinders, 302 piston rods, 4 support plates, 5 upright bars, 6
Workbench, 7 drilling machine ontologies, 8 drill bits, 9 cover plates, 10 elastic telescopic bags, 11 sealant layers, 12 gas alarms, 13 conduits, 14
Solenoid valve, 15 first vacuum tanks, 16 second vacuum tanks, 17 air inlet/outlets, 18 snorkels, 19 air gauges, 20 discharge outlets, 21 locks
Valve, 22 brackets, 221 stainless steel sheaths, 23 plungers, 24 convex blocks, 25 dust-filtering nets, 26 flanges, 27 link blocks, 271 location holes.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of working in driving face of coal mine prospecting by boring protective device, packet
It includes substrate 1 and is set to the self-locking universal wheel 2 of 1 two sides of the bottom of substrate, the self-locking universal wheel 2 of bottom of device setting, so that dress
Set conveniently moving；Upright bar 5 is connected with by the support plate 4 of 3 output end of hydraulic device at the top of the substrate 1, is pacified on the substrate 1
Equipped with the first vacuum tank 15 and the second vacuum tank 16, first vacuum tank 15 is equipped with one group, and second vacuum tank 16 is at least
It is arranged five groups, is equipped with workbench 6 at the top of the upright bar 5, hydraulic device 3 stretches the height of adjustable workbench 6；It is described
Drilling machine ontology 7 is installed, described 7 one end of drilling machine ontology is equipped with drill bit 8, and 6 side of workbench is close at the top of workbench 6
8 position of drill bit is equipped with cover plate 9, and the cover plate 9 is equipped with elastic telescopic bag 10 and gas alarm 12, and cover plate 9 is by 8 position of drill bit
It carries out isolating and protecting to get up, whether gas alarm 12 is for having gas leakage when monitoring prospecting by boring；9 bottom of cover plate is set
There is the conduit 13 being connected with the first vacuum tank 15, solenoid valve 14,15 He of the first vacuum tank are installed on the conduit 13
Air inlet/outlet 17 is equipped at the top of second vacuum tank 16, between first vacuum tank 15 and second vacuum tank 16 and institute
It states and is connected by snorkel 18 between the second vacuum tank 16 and second vacuum tank 16, it, can using negative-pressure adsorption principle
With quickly by the gas leaked out and drilling when the adsorbing powder dust to the first vacuum tank 15 and the second vacuum tank 16 that generates in into
Row is collected, and first vacuum tank 15 and 16 side of the second vacuum tank are equipped with discharge outlet 20, are equipped on the discharge outlet 20
Gate valve 21, and 20 end of discharge outlet is welded with flange 26, the 15 bosom position of the first vacuum tank is equipped with dust-filtering
Dust-filtering can be stayed in bottom in the first vacuum tank 15 by dust-filtering net 25 by net 25.
Specifically, the hydraulic device 3 includes hydraulic cylinder 301 and the piston rod 302 that 301 output end of hydraulic cylinder is arranged in,
On substrate 1,302 end of piston rod is connected with support plate 4 for the installation of hydraulic cylinder 301；It is driven and is lived by hydraulic cylinder 301
About 302 stopper rod is flexible, the height of adjustable workbench 6, to cooperate 7 boring work position of drilling machine ontology.
Specifically, the horn-like structure of the cover plate 9, the elastic telescopic bag 10 are covered with sealing in 9 link position of cover plate
Glue-line 11；Elastic telescopic bag 10 is covered with sealant layer 11 in 9 link position of cover plate, guarantees the sealing performance of link position, bullet
Property flexible bag 10 be plastics expansion bag structure.
Specifically, 17 position of air inlet/outlet at 16 top of first vacuum tank 15 and the second vacuum tank is equipped with plunger
23, described 18 one end of snorkel is arranged through plunger 23；Pass through the disengaging at 16 top of the first vacuum tank 15 and the second vacuum tank
17 position of port is equipped with plunger 23, guarantees the sealing performance of air inlet/outlet 17.
Specifically, first vacuum tank 15 and 16 surface of the second vacuum tank are mounted on air gauge 19, the air gauge
19 surfaces are equipped with tempered glass cover；Air gauge 19 is used to monitor the air pressure change in the first vacuum tank 15 and the second vacuum tank 16.
Specifically, 1 side of substrate is equipped with bracket 22, it is cased with stainless steel sheath 221 on the bracket 22, it is described stainless
Two groups of link blocks 27 are installed on steel sheath 221, offer location hole 271 on the link block 27；Pass through 22 linker of bracket
1 structure of plate, the link block 27 on bracket 22 are connected with external traction mechanism, for device progress tethered sliding.
Specifically, the dust-filtering net 25 is fixed on inside the first vacuum tank 15 down through convex block 24, the convex block
24 are fixed on 15 side wall of the first vacuum tank using welding manner；Installation 25 knot of dust-filtering net is used to support by convex block 24
Structure, so that the installation of 25 structure of dust-filtering net is stablized.
Working principle, device are moved to working in driving face of coal mine position, and the height of workbench 6 is adjusted by hydraulic device 3, lead to
Crossing drilling machine ontology 7 drives drill bit 8 to carry out prospecting by boring, and in boring procedure, 9 side of cover plate is attached to working in driving face of coal mine position, by
It is arranged on cover plate 9 in elastic telescopic bag 10, when cover plate 9 is against development end, 9 position of cover plate provides elastic buffer effect, cover
9 position of plate is against working in driving face of coal mine position and stablizes, and when there is gas pernicious gas, the gas alarm 12 in cover plate 9 is alarmed
It reminds, opens the solenoid valve 14 on conduit 13, under the action of negative pressure of vacuum, the pernicious gases such as gas and dust rapidly enter the
In one vacuum tank 15, under the action of the dust-filtering net 25 in the first vacuum tank 15 filters, dust falls in the first vacuum tank 15
Interior bottom, methane gas, which passes through dust-filtering net 25 and successively flowed into the second vacuum tank 16 by snorkel 18, carries out unified receipts
Collection, the leakage rate of gas when reducing prospecting by boring, while having recycled gas resources.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of working in driving face of coal mine prospecting by boring protective device, including substrate (1) and be set to substrate (1) two sides of the bottom from
It locks universal wheel (2), it is characterised in that: be connected at the top of the substrate (1) by the support plate (4) of hydraulic device (3) output end
Upright bar (5) is equipped with the first vacuum tank (15) and the second vacuum tank (16), first vacuum tank (15) on the substrate (1)
Equipped with one group, second vacuum tank (16) is at least arranged five groups, is equipped with workbench (6) at the top of the upright bar (5), the work
Make to be equipped with drilling machine ontology (7) at the top of platform (6), described drilling machine ontology (7) one end is equipped with drill bit (8), the workbench (6)
Side is equipped with cover plate (9) close to drill bit (8) position, and the cover plate (9) is equipped with elastic telescopic bag (10) and gas alarm
(12), cover plate (9) bottom is equipped with the conduit (13) being connected with the first vacuum tank (15), is equipped on the conduit (13)
It is equipped with air inlet/outlet (17) at the top of solenoid valve (14), first vacuum tank (15) and the second vacuum tank (16), described first
Between vacuum tank (15) and second vacuum tank (16) and second vacuum tank (16) and second vacuum tank (16)
Between be connected by snorkel (18), first vacuum tank (15) and the second vacuum tank (16) side are equipped with discharge outlet
(20), it is equipped with gate valve (21) on the discharge outlet (20), and discharge outlet (20) end is welded with flange (26), described first is true
Slack tank (15) bosom position is equipped with dust-filtering net (25).
2. a kind of working in driving face of coal mine prospecting by boring protective device according to claim 1, it is characterised in that: the hydraulic dress
Setting (3) includes the piston rod (302) of hydraulic cylinder (301) and setting in hydraulic cylinder (301) output end, hydraulic cylinder (301) peace
On substrate (1), piston rod (302) end is connected with support plate (4).
3. a kind of working in driving face of coal mine prospecting by boring protective device according to claim 1, it is characterised in that: the cover plate
(9) horn-like structure, the elastic telescopic bag (10) are covered with sealant layer (11) in cover plate (9) link position.
4. a kind of working in driving face of coal mine prospecting by boring protective device according to claim 1, it is characterised in that: described first is true
Air inlet/outlet (17) position at the top of slack tank (15) and the second vacuum tank (16) is equipped with plunger (23), the snorkel (18) one
End is arranged through plunger (23).
5. a kind of working in driving face of coal mine prospecting by boring protective device according to claim 1, it is characterised in that: described first is true
Slack tank (15) and the second vacuum tank (16) surface are mounted on air gauge (19), and air gauge (19) surface is equipped with tempered glass
Cover.
6. a kind of working in driving face of coal mine prospecting by boring protective device according to claim 1, it is characterised in that: the substrate
(1) side is equipped with bracket (22), is cased with stainless steel sheath (221) on the bracket (22).
7. a kind of working in driving face of coal mine prospecting by boring protective device according to claim 6, it is characterised in that: the stainless steel
Two groups of link blocks (27) are installed on sheath (221), offer location hole (271) on the link block (27).
8. a kind of working in driving face of coal mine prospecting by boring protective device according to claim 1, it is characterised in that: the dust mistake
Strainer (25) is fixed on the first vacuum tank (15) inside down through convex block (24), and the convex block (24) is fixed using welding manner
On the first vacuum tank (15) side wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852797.6A CN109025814A (en) | 2018-07-30 | 2018-07-30 | A kind of working in driving face of coal mine prospecting by boring protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810852797.6A CN109025814A (en) | 2018-07-30 | 2018-07-30 | A kind of working in driving face of coal mine prospecting by boring protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109025814A true CN109025814A (en) | 2018-12-18 |
Family
ID=64647624
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810852797.6A Pending CN109025814A (en) | 2018-07-30 | 2018-07-30 | A kind of working in driving face of coal mine prospecting by boring protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109025814A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110292834A (en) * | 2019-07-17 | 2019-10-01 | 贵州大学 | Absorption plant is used in a kind of leakage of coal gas in mine |
| CN112610162A (en) * | 2020-11-26 | 2021-04-06 | 核工业井巷建设集团有限公司 | Drilling rig for mine blasting with rubble clearance and safeguard function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0938435A (en) * | 1995-07-27 | 1997-02-10 | Nippon Air Filter Kk | Rotary air purifier |
| CN103089264A (en) * | 2011-11-08 | 2013-05-08 | 吴勇 | Dust-free gas-extraction chunk heading machine |
| CN203050572U (en) * | 2013-02-26 | 2013-07-10 | 贺军 | Drilling orifice dust collector |
| CN203626659U (en) * | 2013-12-25 | 2014-06-04 | 江孜 | Novel drilling dustproof and blowout-preventing device |
| CN206174913U (en) * | 2016-10-28 | 2017-05-17 | 河南工程学院 | Complete equipment for preventing gas emission from drill hole |
| CN206845088U (en) * | 2017-06-13 | 2018-01-05 | 石家庄灿祥机械制造有限公司 | A kind of colliery frame column type emulsion boring machine with protection and dedusting function |
-
2018
- 2018-07-30 CN CN201810852797.6A patent/CN109025814A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0938435A (en) * | 1995-07-27 | 1997-02-10 | Nippon Air Filter Kk | Rotary air purifier |
| CN103089264A (en) * | 2011-11-08 | 2013-05-08 | 吴勇 | Dust-free gas-extraction chunk heading machine |
| CN203050572U (en) * | 2013-02-26 | 2013-07-10 | 贺军 | Drilling orifice dust collector |
| CN203626659U (en) * | 2013-12-25 | 2014-06-04 | 江孜 | Novel drilling dustproof and blowout-preventing device |
| CN206174913U (en) * | 2016-10-28 | 2017-05-17 | 河南工程学院 | Complete equipment for preventing gas emission from drill hole |
| CN206845088U (en) * | 2017-06-13 | 2018-01-05 | 石家庄灿祥机械制造有限公司 | A kind of colliery frame column type emulsion boring machine with protection and dedusting function |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110292834A (en) * | 2019-07-17 | 2019-10-01 | 贵州大学 | Absorption plant is used in a kind of leakage of coal gas in mine |
| CN112610162A (en) * | 2020-11-26 | 2021-04-06 | 核工业井巷建设集团有限公司 | Drilling rig for mine blasting with rubble clearance and safeguard function |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181218 |
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| WD01 | Invention patent application deemed withdrawn after publication |