CN108798755A - A kind of comprehensive dust-extraction unit of coal mine roadway easy to use - Google Patents
A kind of comprehensive dust-extraction unit of coal mine roadway easy to use Download PDFInfo
- Publication number
- CN108798755A CN108798755A CN201810584124.7A CN201810584124A CN108798755A CN 108798755 A CN108798755 A CN 108798755A CN 201810584124 A CN201810584124 A CN 201810584124A CN 108798755 A CN108798755 A CN 108798755A
- Authority
- CN
- China
- Prior art keywords
- babinet
- coal mine
- easy
- extraction unit
- plate
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/20—Drawing-off or depositing dust
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
- E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
- E21F5/04—Spraying barriers
Abstract
The invention discloses a kind of comprehensive dust-extraction units of coal mine roadway easy to use,Including pedestal,The pedestal is internally provided with inner cavity,The inner cavity is internally provided with upward shaft,And the inside of the inner cavity is additionally provided with motor,The output shaft of the motor is connected with driving gear,The upper end of the shaft is fixedly connected with plate through the upper end of pedestal,And the bottom of the shaft is connected with driven gear,The driven gear is engaged with driving gear,The upper surface of the plate is equipped with babinet,The upper surface of the babinet is equipped with suction ventilator,And the side of the babinet is hinged with door-plate by hinge,Buckle is installed on the door-plate,The air inlet of the suction ventilator is connected to one end of first pipe,And the air outlet of the suction ventilator is connected to one end of second pipe,The present invention realizes water circulation use in dust removal process,To dedusting work comprehensive in tunnel,The dust of box house can be removed.
Description
Technical field
The invention belongs to technical field of coal mine, and in particular to a kind of coal mine roadway easy to use is filled with comprehensive dedusting
It sets.
Background technology
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 stripping surface soil layer excavate coal, this is open coal mine.China's overwhelming majority coal mine category
In underground mine.Coal mine range includes above and below ground and the very big region of related facility.Coal mine is the mankind in digging rich in having
The proportional space excavated when the geological stratification of coal generally includes tunnel, well cave and face etc..Coal is most important solid
Fuel is one kind of kaustobilite.
But in the prior art, a large amount of dust can be generated inside tunnel during coal mining, at this moment needed
The work being dusted, but existing dust-extraction unit, cannot realize water circulation use in dust removal process, cannot be in tunnel
Comprehensive dedusting work, cannot remove the dust of box house.
For this purpose, it is proposed that a kind of coal mine roadway easy to use solves to deposit in the prior art with comprehensive dust-extraction unit
The problem of, water circulation use can be realized in dust removal process, can be worked comprehensive dedusting in tunnel, convenient for by case
The dust removal in internal portion.
Invention content
It is above-mentioned to solve the purpose of the present invention is to provide a kind of comprehensive dust-extraction unit of coal mine roadway easy to use
It proposes to realize water circulation use in dust removal process in the prior art in background technology, cannot be removed to comprehensive in tunnel
Dirt works, the problem of cannot removing the dust of box house.
To achieve the above object, present invention employs following technical solutions：
A kind of coal mine roadway easy to use comprehensive dust-extraction unit, including pedestal, being internally provided with for the pedestal are interior
Chamber, the inner cavity is internally provided with upward shaft, and the inside of the inner cavity is additionally provided with motor, and the output shaft of the motor connects
It is connected to driving gear, the upper end of the shaft is fixedly connected with plate, and the bottom connection of the shaft through the upper end of pedestal
There is driven gear, the driven gear to be engaged with driving gear, the upper surface of the plate is equipped with babinet, the babinet it is upper
Surface is equipped with suction ventilator, and the side of the babinet is hinged with door-plate by hinge, and card is equipped on the door-plate
Button, the air inlet of the suction ventilator is connected to one end of first pipe, and the one of the air outlet of the suction ventilator and second pipe
End connection, the other end of the second pipe are connected to babinet, and the other end of the first pipe is communicated with horn mouth, the case
The side of body is equipped with protrusion, and the side of the babinet is communicated with third pipeline, and the side of the suction ventilator is equipped with water pump, institute
The water inlet for stating water pump is connected to one end of the 4th pipeline, and the water outlet of the water pump is connected to one end of the 5th pipeline, institute
State the other end of the 5th pipeline and be communicated with branch pipe through babinet, the branch pipe is communicated with downwards atomizer, the babinet it is interior
Portion is equipped with filter screen.
Preferably, the inner cavity is internally provided with motor mount, and the motor is mounted on the lower surface of motor mount.
Preferably, the babinet is internally provided with baffle, and the upper surface of the baffle contacts with the lower surface of filter screen.
Preferably, the quantity of the buckle is consistent with the quantity of protrusion, and the buckle is connected together with protrusion.
Preferably, the quantity of the atomizer is nine groups, and atomizer described in nine groups is equidistantly positioned.
Preferably, the door-plate is glass door panel, and is equipped with handle on the door-plate.
Preferably, the bottom of the pedestal is equipped with self-locking universal wheel, and the self-locking universal wheel is provided with four groups, and four groups of institutes
State the bottom four corners that self-locking universal wheel is located at pedestal.
Preferably, the bottom of the babinet is equipped with holder, and the holder is provided with four groups, and holder described in four groups distinguishes position
In the bottom four corners of babinet.
The technique effect and advantage of the present invention：A kind of comprehensive dedusting of coal mine roadway easy to use proposed by the present invention
Device has the following advantages compared with prior art：
1, driving gear can be driven to rotate by motor work, driving gear rotation can drive shaft to rotate, shaft rotation
Plate rotating can be driven, and then can reach to dedusting work comprehensive in tunnel；
2, the air in tunnel can be sucked into the inside of babinet by suction ventilator work, and water pump can draw water to be sprayed via atomizer
To the inside of babinet, the work being dusted to the air of box house is can reach, the air after dedusting can be via third pipeline
Outflow, the water of box house can be pumped into box house via water pump again, achieve the purpose that water circulation use；
3, it is separated with protrusion by that will buckle, opens door-plate, the dust of box house can be removed.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the box inner structure schematic diagram of the present invention；
Fig. 3 is the chassis interior structural schematic diagram of the present invention；
In figure：1 pedestal, 2 inner cavities, 3 shafts, 4 motors, 5 driving gears, 6 motor mounts, 7 plates, 8 driven gears, 9
Babinet, 10 suction ventilators, 11 hinges, 12 door-plates, 13 buckles, 14 first pipes, 15 horn mouths, 16 second pipes, 17 protrusions, 18 the
Three pipelines, 19 water pumps, 20 the 4th pipelines, 21 the 5th pipelines, 22 branch pipes, 23 atomizers, 24 filter screens, 25 holders, 26 self-lockings
Universal wheel, 27 baffles, 28 handles.
Specific implementation mode
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 describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Herein
Described specific embodiment is only used to explain the present invention, is not intended to limit the present invention.Based on the embodiments of the present invention,
Every other embodiment obtained by those of ordinary skill in the art without making creative efforts, belongs to this hair
The range of bright protection.
The present invention provides the comprehensive dust-extraction units of a kind of coal mine roadway easy to use as shown in Figs. 1-3, including
Pedestal 1, the pedestal 1 are internally provided with inner cavity 2, and the inner cavity 2 is internally provided with upward shaft 3, and the inner cavity 2 is interior
Portion is additionally provided with motor 4, and the output shaft of the motor 4 is connected with driving gear 5, and the upper end of pedestal 1 is run through in the upper end of the shaft 3
It is fixedly connected with plate 7, and the bottom of the shaft 3 is connected with driven gear 8, the driven gear 8 is nibbled with driving gear 5
It closes, driving gear 5 can be driven to rotate by the work of motor 4, the rotation of driving gear 5 can drive shaft 3 to rotate, and shaft 3 rotates meeting
It drives plate 7 to rotate, and then can reach to dedusting work comprehensive in tunnel；The upper surface of the plate 7 is equipped with babinet
9, the upper surface of the babinet 9 is equipped with suction ventilator 10, and the side of the babinet 9 is hinged on one by hinge 11 and door-plate 12
It rises, buckle 13 is installed on the door-plate 12, separated by that will buckle 13 and raised 17, opening door-plate 12, it can will be inside babinet 9
Dust removal；The air inlet of the suction ventilator 10 is connected to one end of first pipe 14, and the air outlet of the suction ventilator 10
Be connected to one end of second pipe 16, the other end of the second pipe 16 is connected to babinet 9, the first pipe 14 it is another
End is communicated with horn mouth 15, and the side of the babinet 9 is equipped with protrusion 17, and the side of the babinet 9 is communicated with third pipeline 18,
The side of the suction ventilator 10 is equipped with water pump 19, and the water inlet of the water pump 19 is connected to one end of the 4th pipeline 20, and institute
The water outlet for stating water pump 19 is connected to one end of the 5th pipeline 21, and the other end of the 5th pipeline 21 is communicated with through babinet 9
Branch pipe 22, the branch pipe 22 are communicated with downwards atomizer 23, and the air in tunnel can be sucked into babinet 9 by the work of suction ventilator 10
Inside, water pump 19, which can draw water, sprays to the inside of babinet 9 via atomizer 23, can reach to inside babinet 9 air carry out
The work of dedusting, the air after dedusting can be flowed out via third pipeline 18, and the water inside babinet 9 can be pumped into via water pump 19 again
Inside babinet 9, achieve the purpose that water circulation use；The inside of the babinet 9 is equipped with filter screen 24.
Preferably, the inner cavity 2 is internally provided with motor mount 6, the motor 4 is mounted under motor mount 6
Surface.
By using above-mentioned technical proposal, motor 4 is mounted on the lower surface of motor mount 6, is convenient for the installation of motor 4.
Preferably, the babinet 9 is internally provided with baffle 27, the lower surface of the upper surface and filter screen 24 of the baffle 27
Contact.
By using above-mentioned technical proposal, the upper surface of baffle 27 is contacted with the lower surface of filter screen 24, to filter screen 24
It plays a supporting role.
Preferably, the quantity of the buckle 13 is consistent with the quantity of protrusion 17, and the buckle 13 is connected to protrusion 17
Together.
By using above-mentioned technical proposal, buckle 13 is connected together with protrusion 17, can merge door-plate 12 with babinet 9
Together.
Preferably, the quantity of the atomizer 23 is nine groups, and atomizer 23 described in nine groups is equidistantly positioned.
By using above-mentioned technical proposal, the quantity of atomizer 23 is nine groups, can preferably achieve the purpose that dedusting.
Preferably, the door-plate 12 is glass door panel, and handle 28 is installed on the door-plate 12.
By using above-mentioned technical proposal, handle 28 is installed on door-plate 12, the opening convenient for door-plate 12 and closing.
Preferably, the bottom of the pedestal 1 is equipped with self-locking universal wheel 26, the self-locking universal wheel 26 is provided with four groups, and
Self-locking universal wheel 26 described in four groups is located at the bottom four corners of pedestal 1.
By using above-mentioned technical proposal, the bottom of pedestal 1 is equipped with self-locking universal wheel 26, is convenient for the shifting of this dust-extraction unit
It is dynamic.
Preferably, the bottom of the babinet 9 is equipped with holder 25, the holder 25 is provided with four groups, and holder described in four groups
25 are located at the bottom four corners of babinet 9.
By using above-mentioned technical proposal, the bottom of babinet 9 is equipped with holder 25, plays the role of support to babinet 9.
Operation principle：When needing using the comprehensive dust-extraction unit of coal mine roadway being originally easy to use, it is first turned on suction
Air in tunnel can be sucked into the inside of babinet 9 by wind turbine 10, water pump 19 and motor 4, suction ventilator 10, water pump 19 can draw water through
The inside that babinet 9 is sprayed to by atomizer 23 can reach the work being dusted to the air inside babinet 9, the sky after dedusting
Gas can be flowed out via third pipeline 18, and the water inside babinet 9 can be pumped into via water pump 19 inside babinet 9 again, reach water cycle
The purpose utilized, the work of motor 4 can drive driving gear 5 to rotate, and the rotation of driving gear 5 can drive shaft 3 to rotate, 3 turns of shaft
It is dynamic that plate 7 can be driven to rotate, and then can reach to dedusting work comprehensive in tunnel, when as excessive such as the dust inside babinet 9,
Buckle 13 and protrusion 17 are separated, door-plate 12 is opened, the dust inside babinet 9 can be removed.
Finally it should be noted that：The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention,
Although the present invention is described in detail referring to the foregoing embodiments, for those skilled in the art, still may be used
With technical scheme described in the above embodiments is modified or equivalent replacement of some of the technical features,
All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in the present invention's
Within protection domain.
Claims (8)
1. a kind of comprehensive dust-extraction unit of coal mine roadway easy to use, including pedestal (1), it is characterised in that：The pedestal
(1) be internally provided with inner cavity (2), the inner cavity (2) is internally provided with upward shaft (3), and the inside of the inner cavity (2) is also
Equipped with motor (4), the output shaft of the motor (4) is connected with driving gear (5), and pedestal (1) is run through in the upper end of the shaft (3)
Upper end be fixedly connected with plate (7), and the bottom of the shaft (3) is connected with driven gear (8), the driven gear (8)
It is engaged with driving gear (5), the upper surface of the plate (7) is equipped with babinet (9), and the upper surface of the babinet (9) is equipped with
Suction ventilator (10), and the side of the babinet (9) is hinged by hinge (11) and door-plate (12), on the door-plate (12)
Buckle (13) is installed, the air inlet of the suction ventilator (10) is connected to one end of first pipe (14), and the suction ventilator
(10) air outlet is connected to the one end of second pipe (16), and the other end of the second pipe (16) is connected to babinet (9), institute
The other end for stating first pipe (14) is communicated with horn mouth (15), and the side of the babinet (9) is equipped with raised (17), and the case
The side of body (9) is communicated with third pipeline (18), and the side of the suction ventilator (10) is equipped with water pump (19), the water pump (19)
Water inlet be connected to one end of the 4th pipeline (20), and one end of the water outlet of the water pump (19) and the 5th pipeline (21) connect
Logical, the other end of the 5th pipeline (21) is communicated with branch pipe (22) through babinet (9), and the branch pipe (22) is communicated with downwards mist
Change nozzle (23), the inside of the babinet (9) is equipped with filter screen (24).
2. a kind of comprehensive dust-extraction unit of coal mine roadway easy to use according to claim 1, it is characterised in that：Institute
That states inner cavity (2) is internally provided with motor mount (6), and the motor (4) is mounted on the lower surface of motor mount (6).
3. a kind of comprehensive dust-extraction unit of coal mine roadway easy to use according to claim 1, it is characterised in that：Institute
That states babinet (9) is internally provided with baffle (27), and the upper surface of the baffle (27) is contacted with the lower surface of filter screen (24).
4. a kind of comprehensive dust-extraction unit of coal mine roadway easy to use according to claim 1, it is characterised in that：Institute
The quantity for stating buckle (13) is consistent with the raised quantity of (17), and the buckle (13) is connected together with raised (17).
5. a kind of comprehensive dust-extraction unit of coal mine roadway easy to use according to claim 1, it is characterised in that：Institute
The quantity for stating atomizer (23) is nine groups, and atomizer (23) described in nine groups is equidistantly positioned.
6. a kind of comprehensive dust-extraction unit of coal mine roadway easy to use according to claim 1, it is characterised in that：Institute
It is glass door panel to state door-plate (12), and handle (28) is equipped on the door-plate (12).
7. a kind of comprehensive dust-extraction unit of coal mine roadway easy to use according to claim 1, it is characterised in that：Institute
The bottom for stating pedestal (1) is equipped with self-locking universal wheel (26), and the self-locking universal wheel (26) is provided with four groups, and self-locking described in four groups
Universal wheel (26) is located at the bottom four corners of pedestal (1).
8. a kind of comprehensive dust-extraction unit of coal mine roadway easy to use according to claim 1, it is characterised in that：Institute
The bottom for stating babinet (9) is equipped with holder (25), and the holder (25) is provided with four groups, and holder (25) described in four groups is located at
The bottom four corners of babinet (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810584124.7A CN108798755A (en) | 2018-06-08 | 2018-06-08 | A kind of comprehensive dust-extraction unit of coal mine roadway easy to use |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810584124.7A CN108798755A (en) | 2018-06-08 | 2018-06-08 | A kind of comprehensive dust-extraction unit of coal mine roadway easy to use |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108798755A true CN108798755A (en) | 2018-11-13 |
Family
ID=64087731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810584124.7A Pending CN108798755A (en) | 2018-06-08 | 2018-06-08 | A kind of comprehensive dust-extraction unit of coal mine roadway easy to use |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108798755A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356639A (en) * | 2018-12-26 | 2019-02-19 | 王永 | A kind of dedusting device for coal mine safety |
| CN111042853A (en) * | 2020-01-13 | 2020-04-21 | 永康悠长矿产开采技术有限公司 | Dust removal mine safety device capable of achieving water circulation |
| CN111894654A (en) * | 2020-06-22 | 2020-11-06 | 罗瑞敏 | Device for treating gas at upper corner of coal mine |
| CN112282830A (en) * | 2020-10-10 | 2021-01-29 | 黑龙江工业学院 | Environment-friendly gallery dust collector for coal mining |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204627652U (en) * | 2015-05-22 | 2015-09-09 | 华北科技学院 | A kind of coal mine dedusting device |
| CN205370634U (en) * | 2016-01-19 | 2016-07-06 | 安徽省皖北煤电集团有限责任公司百善煤矿 | Hydrologic cycle formula colliery dust shaker |
| CN206434991U (en) * | 2016-12-10 | 2017-08-25 | 新昌县智昌科技有限公司 | A kind of dust separation environmental protecting device |
| CN206655713U (en) * | 2017-04-24 | 2017-11-21 | 连云港三和磁选设备有限公司 | A kind of mine construction scene dust arrester |
| CN206715590U (en) * | 2017-05-03 | 2017-12-08 | 中国建筑第七工程局有限公司 | One kind building removal construction dust arrester |
| CN107596839A (en) * | 2017-10-26 | 2018-01-19 | 徐俊浩 | A kind of dust arrester of pretreatment with Chinese medicine equipment |
| CN207102188U (en) * | 2017-08-18 | 2018-03-16 | 江苏绿塔环境工程有限公司 | A kind of flue-gas dust removal and purification device with atomizing sprayer |
| CN207212394U (en) * | 2017-09-18 | 2018-04-10 | 张弘弦 | A kind of colliery high effect dust cleaner |
-
2018
- 2018-06-08 CN CN201810584124.7A patent/CN108798755A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204627652U (en) * | 2015-05-22 | 2015-09-09 | 华北科技学院 | A kind of coal mine dedusting device |
| CN205370634U (en) * | 2016-01-19 | 2016-07-06 | 安徽省皖北煤电集团有限责任公司百善煤矿 | Hydrologic cycle formula colliery dust shaker |
| CN206434991U (en) * | 2016-12-10 | 2017-08-25 | 新昌县智昌科技有限公司 | A kind of dust separation environmental protecting device |
| CN206655713U (en) * | 2017-04-24 | 2017-11-21 | 连云港三和磁选设备有限公司 | A kind of mine construction scene dust arrester |
| CN206715590U (en) * | 2017-05-03 | 2017-12-08 | 中国建筑第七工程局有限公司 | One kind building removal construction dust arrester |
| CN207102188U (en) * | 2017-08-18 | 2018-03-16 | 江苏绿塔环境工程有限公司 | A kind of flue-gas dust removal and purification device with atomizing sprayer |
| CN207212394U (en) * | 2017-09-18 | 2018-04-10 | 张弘弦 | A kind of colliery high effect dust cleaner |
| CN107596839A (en) * | 2017-10-26 | 2018-01-19 | 徐俊浩 | A kind of dust arrester of pretreatment with Chinese medicine equipment |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109356639A (en) * | 2018-12-26 | 2019-02-19 | 王永 | A kind of dedusting device for coal mine safety |
| CN111042853A (en) * | 2020-01-13 | 2020-04-21 | 永康悠长矿产开采技术有限公司 | Dust removal mine safety device capable of achieving water circulation |
| CN111894654A (en) * | 2020-06-22 | 2020-11-06 | 罗瑞敏 | Device for treating gas at upper corner of coal mine |
| CN111894654B (en) * | 2020-06-22 | 2022-08-09 | 山西地宝能源有限公司 | Device for treating gas at upper corner of coal mine |
| CN112282830A (en) * | 2020-10-10 | 2021-01-29 | 黑龙江工业学院 | Environment-friendly gallery dust collector for coal mining |
| CN112282830B (en) * | 2020-10-10 | 2023-08-08 | 黑龙江工业学院 | Environment-friendly type tunnel dust removing device for coal mine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108798755A (en) | A kind of comprehensive dust-extraction unit of coal mine roadway easy to use | |
| CN209060769U (en) | A kind of interior architecture construction portable dust-extraction unit | |
| CN209637806U (en) | A kind of coal mining air cleaning unit | |
| CN209704621U (en) | A kind of atomizing de-dusting apparatus of coal mine underground safe handling | |
| CN107420102B (en) | A kind of development machine negative pressure device for reducing dust and its application method | |
| CN207229046U (en) | A kind of orifice closing formula deduster | |
| CN206570855U (en) | A kind of cities and towns dredging device for water conservancy projects | |
| CN213282753U (en) | Waterproof paint spraying equipment for construction | |
| CN112832845B (en) | Gas extraction device and method for upper corner of coal mining working face of coal mine | |
| CN209838467U (en) | Air suction type dust settling equipment for coal mine tunnel | |
| CN111097583A (en) | Reducing mechanism suitable for coal mining | |
| CN220336936U (en) | Underground ventilation device for coal mine | |
| CN211692542U (en) | A dust collector for colliery is in pit | |
| CN218392914U (en) | Phosphorite is opened and is adopted dust fall environment-friendly device | |
| CN216767451U (en) | Coal mine operation ventilation unit | |
| CN213942578U (en) | A dustproof air circulating device for intelligent miner's lamp cabinet that charges | |
| CN111151533A (en) | Coal mining formula dryer of being convenient for to clear up | |
| CN214143491U (en) | Dust falling device for underground coal mine | |
| CN213684091U (en) | Sand control device for oil extraction | |
| CN215057528U (en) | Can combine of water tank automatically cleaning of removing dust and dig working face dust removal heat sink | |
| CN214944421U (en) | Device with water prevention and control and ventilation safety functions for coal mine | |
| CN219830532U (en) | Rotary shaking device for surface water detection | |
| CN219101402U (en) | Ventilation dust remover for coal mine operation | |
| CN214221236U (en) | Colliery ventilation dust keeper | |
| CN216058107U (en) | Cooling device for coal mine electromechanical equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181113 |