CN104847397B - One kind is used for Safety of Coal Mine Production tunnel deduster - Google Patents
One kind is used for Safety of Coal Mine Production tunnel deduster Download PDFInfo
- Publication number
- CN104847397B CN104847397B CN201510186909.5A CN201510186909A CN104847397B CN 104847397 B CN104847397 B CN 104847397B CN 201510186909 A CN201510186909 A CN 201510186909A CN 104847397 B CN104847397 B CN 104847397B
- Authority
- CN
- China
- Prior art keywords
- water spout
- air
- layer
- porous plate
- water
- 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 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 77
- 238000001914 filtration Methods 0.000 claims abstract description 43
- 239000002131 composite material Substances 0.000 claims abstract description 25
- 239000000428 dust Substances 0.000 claims abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 28
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 18
- 230000001413 cellular effect Effects 0.000 claims description 11
- 229920004934 Dacron® Polymers 0.000 claims description 10
- 239000011941 photocatalyst Substances 0.000 claims description 10
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 10
- 229920000742 Cotton Polymers 0.000 claims description 8
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 8
- 239000003365 glass fiber Substances 0.000 claims description 7
- 239000011159 matrix material Substances 0.000 claims description 6
- 238000007747 plating Methods 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 239000004408 titanium dioxide Substances 0.000 claims description 5
- 238000005229 chemical vapour deposition Methods 0.000 claims description 3
- 239000003610 charcoal Substances 0.000 claims description 2
- 239000011248 coating agent Substances 0.000 claims 1
- 238000000576 coating method Methods 0.000 claims 1
- 239000002817 coal dust Substances 0.000 abstract description 6
- 239000013618 particulate matter Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 206010035653 pneumoconiosis Diseases 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Filtering Materials (AREA)
- Catalysts (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of be used for Safety of Coal Mine Production tunnel deduster, including shell of dust remover, air inlet, air outlet, inlet air filter screen layer, porous plate, composite conic water spout, air outlet filtration core and fan, fan is provided with the air inlet, inlet air filter screen layer is provided with the inside of the fan, the porous plate is arranged on the opposite side of inlet air filter screen layer, the porous plate offers multiple through holes, the composite conic water spout is inserted in the hole that porous plate is opened up, the composite conic water spout includes the secondary taper water spout that is obliquely installed of tapered slope of a main cone shape water spout and Duo Gen along main cone shape water spout.By concrete setting, it is achieved that effectively remove the coal dust particulate matter in coal mine gallery, reduce the possibility of the blast that coal dust causes, improve safety of coal mines coefficient.
Description
Technical field
The present invention relates to a kind of deduster, and in particular to a kind of for Safety of Coal Mine Production tunnel deduster.
Background technology
During explosion, loading and hauling operation during coal mine underground mining produce a large amount of dust, these dust with
That mine ventilation is distinguished and admirable to be discharged to ground, its particle concentration is up to 800mg/m3More than, severe contamination ground environment, causes
Pollutant is exceeded.At present, the existing discharge standard of air pollutants of China is to discharge that particulate matter is allowed
Maximum concentration limit value is 150mg/m 3, and the particle concentration during mine for air exhaustion is distinguished and admirable is generally exceeded, needs to be administered.
The dust-proof operation of coal mine underground coal bed drilling, often boring a hole just has the coal dust that nearly 1 ton of raw coal is formed to fly out, in tunnel
Several kilometers of lower air port is a piece of black to the greatest extent, and scene is shocking.Coal Mines dirt very harmful, most easily cause dust explosion, cause personnel
Casualty accident.While being also the root for causing miner to obtain pneumoconiosis.For these years, it is the body that ensures mine safety and operating personnel
Body health, constantly organizational technology's tackling key problem in the industry, design and produce various dust arresters, but effect on driving birds is not good, dust removal efficiency is extremely
Many 60%.
Content of the invention
The present invention is provided can be a kind of for the dedusting of Safety of Coal Mine Production tunnel with the tunnel deduster of high-efficiency environment friendly energy-conservation
Device, including shell of dust remover, air inlet, air outlet, inlet air filter screen layer, porous plate, composite conic water spout, air-out are made a slip of the tongue
Filter core and fan, are provided with fan in the air inlet, are provided with inlet air filter screen layer on the inside of the fan, and the porous plate is arranged
In the opposite side of inlet air filter screen layer, the porous plate offers multiple through holes, and the thickness of the through hole is 70mm-100mm, described
Composite conic water spout is inserted in the hole that porous plate is opened up, the composite conic water spout include a main cone shape water spout and
The secondary taper water spout that many tapered slope along main cone shape water spout are obliquely installed, arranges a main jet in main cone shape water spout
Waterpipe, each time taper water spout arrange one water pipeline, time water pipeline per root of composite conic water spout and its
Main jet waterpipe UNICOM, the main jet waterpipe connection water supply cross over pipe of multiple composite conic water spouts, the water supply cross over pipe connect
Water receiving source, air outlet are provided with air outlet filtration core, and the air outlet filtration core is coning arranged, the air outlet filtration core bag
Wind filtering meshes are included, air-out filtering meshes include：Cellular photocatalyst filtering net layer, be located at the cellular photocatalyst filtering net layer
The immobilized nano titanium oxide filter mesh layer of side, the aperture of the cellular photocatalyst filtering net layer is 0.7-0.8mm, and thickness is 1-
1.2mm；In the matrix of the immobilized nano titanium oxide filter mesh layer, the volume content of activated carbon is 52-63%, Activated carbon matrix table
The ultramicrofine nanometer titanium dioxide layer of face plating, nanometer titanium dioxide layer carry out plating using CVD method, the porous plate logical
A plurality of tooth bar is provided with internal surface of hole horizontal direction, and the peak of the tooth bar is 5-6mm with the difference in height of minimum point, tooth bar
Number be 6-10, in porous plate both sides, housing bottom is respectively provided with outlet of sewer.The air outlet filtration core is near dedusting
Time filtering meshes are provided with the inside of device, and described time filtering meshes air intake direction includes successively to air-out direction：Filter cotton layer, activity
Charcoal filter layer, dacron thread tissue layer.The inlet air filter screen layer is：Glass fiber mesh.The aperture of the porous plate is 50-70mm.
5-10 time taper water spout is provided with the composite conic water spout.This taper water spout is horizontal by 45-60 degree
Angle of inclination.The filtration cotton layer thickness is 5mm, activated carbon filter layer thickness is 5mm, and dacron thread tissue layer thickness is 5mm.Glass
Glass web thickness is 5mm.It is additionally provided with the shell of dust remover for housing is suspended on the fixation on coal mine gallery wall
Part.The main jet waterpipe a diameter of 5mm, described water pipeline diameter 2mm.
Preferably, the air outlet filtration core is provided with time filtering meshes on the inside of deduster（7）, filter for described time
Stratum reticulare air intake direction includes successively to air-out direction：Filter cotton layer, activated carbon filter layer, dacron thread tissue layer.
Preferably, the inlet air filter screen layer is：Glass fiber mesh.
Preferably, the aperture of the porous plate is 50-70mm.
Preferably, being provided with 5-10 time taper water spout on the composite conic water spout.
Preferably, angle of inclination of this taper water spout horizontal by 45-60 degree.
Preferably, the filtration cotton layer thickness be 5mm, activated carbon filter layer thickness be 5mm, dacron thread tissue layer thickness is
5mm.
Preferably, glass fibre thickness of net is 5mm.
Preferably, being additionally provided with the shell of dust remover for housing is suspended on the fixed part on coal mine gallery wall
Part.
Preferably, the main jet waterpipe a diameter of 5mm, described water pipeline diameter 2mm.
Effect of the invention is that：
（1）Cooperation of the present invention by porous plate with composite conic water spout is carried out to the dust of in the air, fully
Played and advantage has been cleaned in small space emphasis, the water spraying direction of composite conic water spout is relative with air intake direction in addition, increased
Water and the time of contact of air, cleaning performance is good, cleaning efficiency is high.
（2）In addition the present invention can effectively remove coal dust particulate matter by cleaning and multiple times of filtration, reduce coal dust and draw
The possibility of the blast for rising, improves safety of coal mines coefficient.
（3）By arranging cellular photocatalyst filtering net layer, being located at the cellular photocatalyst filtering net in air-out filtering meshes
The immobilized nano titanium oxide filter mesh layer of layer side, reaches the effect for fully removing remaining coal dust particulate matter.
（4）Air outlet filtration core is design for disassembly, and the inlet air filter screen layer is design for disassembly, mistake thereon
Filter pulp layer, activated carbon filter layer, dacron thread tissue layer are as design for disassembly.The design is convenient for carrying out clearly above-mentioned part
Wash or change.
（5）A plurality of tooth bar is provided with the through-hole inner surface horizontal direction of porous plate, has preferably coordinated composite conic
Water spout, spray splash down and fully can be splash tiny spray again after tooth bar and composite conic water spray pipe surface, to through hole
Interior air is effectively cleaned, the water source of saving, and effectively reduces wind speed so that particulate matter in through-holes by when
Between increase, so that particle is fully cleaned.
Description of the drawings
Fig. 1 is used for the front section view of Safety of Coal Mine Production tunnel deduster for the present invention
Fig. 2 is embodiment perforated plate construction figure
Specific embodiment
Embodiment
As depicted in figs. 1 and 2, a kind of for Safety of Coal Mine Production tunnel deduster, including shell of dust remover 1, air inlet
2, air outlet 3, inlet air filter screen layer 4, porous plate 5, composite conic water spout 6, air outlet filtration core 8 and fan 9, the air intake
Fan 9 is provided with mouthful, and 9 inner side of the fan is provided with inlet air filter screen layer 4, and the porous plate 5 is arranged on inlet air filter screen layer
Opposite side, the porous plate 5 offers multiple through holes 10, and the thickness of the through hole is 70mm-100mm, the composite conic spray
Water nozzle 6 is inserted in the hole that porous plate is opened up, and the composite conic water spout 6 includes a main cone shape water spout 11 and Duo Gen edge
The secondary taper water spout 12 that the tapered slope of main cone shape water spout is obliquely installed, arranges a main jet water pipe in main cone shape water spout
Road, each taper water spout arrange one water pipeline, time water pipeline per root of composite conic water spout 6 and its main jet
Waterpipe UNICOM, the main jet waterpipe connection water supply cross over pipe 13 of multiple composite conic water spouts 6, the water supply cross over pipe 13 connects
Water receiving source, is provided with air outlet filtration core 8 at air outlet 3, the air outlet filtration core 8 is coning arranged, and the air outlet is filtered
Core 8 includes air-out filtering meshes, and air-out filtering meshes include：Cellular photocatalyst filtering net layer, be located at the cellular photocatalyst
The immobilized nano titanium oxide filter mesh layer of filter mesh layer side, the aperture of the cellular photocatalyst filtering net layer is 0.7-0.8mm, thick
Spend for 1-1.2mm；In the matrix of the immobilized nano titanium oxide filter mesh layer, the volume content of activated carbon is 52-63%, activated carbon
The ultramicrofine nanometer titanium dioxide layer of matrix surface plating, nanometer titanium dioxide layer carry out plating, the porous using CVD method
A plurality of tooth bar is provided with the 10 inner surface horizontal direction of through hole of plate 5, the peak of the tooth bar with the difference in height of minimum point is
5-6mm, the number of tooth bar is 6-10, and in porous plate both sides, housing bottom is respectively provided with outlet of sewer.The air outlet is filtered
Core is provided with time filtering meshes 7 on the inside of deduster, and described time filtering meshes air intake direction includes successively to air-out direction：Cross
Filter pulp layer, activated carbon filter layer, dacron thread tissue layer.The inlet air filter screen layer is：Glass fiber mesh.The aperture of the porous plate
For 50-70mm.5-10 time taper water spout is provided with the composite conic water spout.This taper water spout and horizontal plane
Angle of inclination in 45-60 degree.The filtration cotton layer thickness is 5mm, activated carbon filter layer thickness is 5mm, and dacron thread tissue layer is thick
Spend for 5mm.Glass fibre thickness of net is 5mm.It is additionally provided with the shell of dust remover for housing is suspended on coal mine gallery
Fixed component on wall.The main jet waterpipe a diameter of 5mm, described water pipeline diameter 2mm.
In coal mine gallery, air is used for the deduster air inlet entrance of Safety of Coal Mine Production tunnel by the present invention, subsequently successively
By glass fiber mesh, enter into inside deduster, air is then gone through in the hole of porous plate, rinse in the presence of water
To the particle of in the air, subsequent air-flow passes sequentially through filter cotton layer, activated carbon filter layer, dacron thread tissue layer, enters into cone again afterwards
Shape air outlet filter core, air-out filtering meshes carry out residual particles filtration, and the air of clean cleaning is entered in tunnel.
Claims (1)
1. a kind of for Safety of Coal Mine Production tunnel deduster, including shell of dust remover, air inlet, air outlet, inlet air filter screen
Layer, porous plate, composite conic water spout, air outlet filtration core and fan, are provided with fan in the air inlet, in the fan
Side is provided with inlet air filter screen layer, and the porous plate is arranged on the opposite side of inlet air filter screen layer, and the porous plate offers multiple
Through hole, the thickness of the through hole is 70mm-100mm, and the composite conic water spout is inserted in the hole that porous plate is opened up, and this is multiple
Closing taper water spout includes the secondary cone that is obliquely installed of tapered slope of a main cone shape water spout and Duo Gen along main cone shape water spout
Shape water spout, arranges a main jet waterpipe in main cone shape water spout, and each time taper water spout arranges one water pipeline,
Time water pipeline per root of composite conic water spout and its main jet waterpipe UNICOM, the main jet water pipe of multiple composite conic water spouts
Road connects water supply cross over pipe, and the water supply cross over pipe connects water source, and air outlet is provided with air outlet filtration core, and the air-out is made a slip of the tongue
Filter core is coning arranged, and the air outlet filtration core includes air-out filtering meshes, and air-out filtering meshes include：Cellular photocatalyst
Filter mesh layer, the immobilized nano titanium oxide filter mesh layer positioned at the cellular photocatalyst filtering net layer side, the cellular light are touched
The aperture of matchmaker's filter mesh layer is 0.7-0.8mm, and thickness is 1-1.2mm；Living in the matrix of the immobilized nano titanium oxide filter mesh layer
Property charcoal volume content be 52-63%, the ultramicrofine nanometer titanium dioxide layer of Activated carbon matrix coating surface, nano titanium oxide
Layer carries out plating using CVD method, is provided with a plurality of tooth bar, the tooth bar in the through-hole inner surface horizontal direction of the porous plate
The difference in height of peak and minimum point be 5-6mm, the number of tooth bar is 6-10, and in porous plate both sides, housing bottom is set respectively
Outlet of sewer is put, the air outlet filtration core is provided with time filtering meshes, described filtering meshes air intake on the inside of deduster
Direction includes successively to air-out direction：Filter cotton layer, activated carbon filter layer, dacron thread tissue layer, the inlet air filter screen layer is：Glass
Glass fleece, the aperture of the porous plate is 50-70mm, is provided with 5-10 taper water spray on the composite conic water spout
Mouth, horizontal by the angle of inclination of 45-60 degree, the filtration cotton layer thickness is 5mm to this taper water spout, activated carbon is filtered
Thickness degree is 5mm, and dacron thread tissue layer thickness is 5mm, and glass fibre thickness of net is 5mm, is additionally provided with the shell of dust remover
For housing is suspended on the fixed component on coal mine gallery wall, a diameter of 5mm of the main jet waterpipe, described water pipeline
Diameter 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510186909.5A CN104847397B (en) | 2013-09-01 | 2013-09-01 | One kind is used for Safety of Coal Mine Production tunnel deduster |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510186909.5A CN104847397B (en) | 2013-09-01 | 2013-09-01 | One kind is used for Safety of Coal Mine Production tunnel deduster |
| CN201310388129.XA CN103410555B (en) | 2013-09-01 | 2013-09-01 | Gallery dust remover for coal mine safety production |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310388129.XA Division CN103410555B (en) | 2013-09-01 | 2013-09-01 | Gallery dust remover for coal mine safety production |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104847397A CN104847397A (en) | 2015-08-19 |
| CN104847397B true CN104847397B (en) | 2017-03-08 |
Family
ID=49603589
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310388129.XA Active CN103410555B (en) | 2013-09-01 | 2013-09-01 | Gallery dust remover for coal mine safety production |
| CN201510186909.5A Expired - Fee Related CN104847397B (en) | 2013-09-01 | 2013-09-01 | One kind is used for Safety of Coal Mine Production tunnel deduster |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310388129.XA Active CN103410555B (en) | 2013-09-01 | 2013-09-01 | Gallery dust remover for coal mine safety production |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN103410555B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332732A (en) * | 2015-10-28 | 2016-02-17 | 无锡市惠泽通用机械有限公司 | Low-temperature exhaust device for mines |
| CN105332731A (en) * | 2015-10-28 | 2016-02-17 | 无锡市惠泽通用机械有限公司 | Anti-explosion air extracting device for coal mine well |
| CN111946388B (en) * | 2020-08-17 | 2022-01-04 | 南京凌翔节能科技有限公司 | Colliery dust fall board and colliery dust device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60143813A (en) * | 1983-12-30 | 1985-07-30 | Fukue Nishimori | Separator of gas and water |
| JPS60143813U (en) * | 1984-03-01 | 1985-09-24 | 積水ハウス株式会社 | eaves tiles |
| DE4002462A1 (en) * | 1990-01-28 | 1991-08-01 | Reno Gmbh En Und Umwelttechnik | Waste gas filtering and cleaning - by passage at controlled velocity through moving filter and sorbent bed |
| JP4455708B2 (en) * | 2000-01-17 | 2010-04-21 | 日本碍子株式会社 | Honeycomb structure and manufacturing method thereof |
| CN200939366Y (en) * | 2006-08-10 | 2007-08-29 | 李泽清 | Composite filter |
| US8100200B2 (en) * | 2009-04-16 | 2012-01-24 | Atlas Copco Secoroc Llc | Chuck assembly for a down-hole drill |
| CN102678163A (en) * | 2012-06-04 | 2012-09-19 | 杭州祥龙钻探设备有限公司 | Dust removal device for drilling orifice of coal mine tunnel |
-
2013
- 2013-09-01 CN CN201310388129.XA patent/CN103410555B/en active Active
- 2013-09-01 CN CN201510186909.5A patent/CN104847397B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN104847397A (en) | 2015-08-19 |
| CN103410555A (en) | 2013-11-27 |
| CN103410555B (en) | 2015-07-01 |
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| TA01 | Transfer of patent application right |
Effective date of registration: 20161223 Address after: 516157 Boluo County, Huizhou Province Yang Yang Village Road, No. 187, Guangdong Applicant after: Xie Caihong Address before: 100192 Beijing city Changping District East Town Jiayun Park District 3 Building 3 unit 322 room Applicant before: Li Qian |
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Effective date of registration: 20200603 Address after: 221000 Qianlou Village, Huangji Town, Tongshan District, Xuzhou City, Jiangsu Province, Team 121 Patentee after: Chen Huanhuan Address before: 516157, No. 187 Yang Cun road, Yang village, Boluo County, Huizhou, Guangdong Patentee before: Xie Caihong |
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Effective date of registration: 20200814 Address after: Room 903, 9 / F, Yuting Plaza, 59 Wangqiao Road, Xiongzhou street, Liuhe District, Nanjing City, Jiangsu Province Patentee after: Nanjing bailing Intelligent Equipment Technology Co.,Ltd. Address before: 221000 Qianlou Village, Huangji Town, Tongshan District, Xuzhou City, Jiangsu Province, Team 121 Patentee before: Chen Huanhuan |
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Effective date of registration: 20201119 Address after: Room 501, Jianshe building, No.20, Zhongshi Road, Huangdai Town, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Suzhou Xiangcheng Daichen science and Technology Industrial Park Operation Management Co.,Ltd. Address before: Room 903, 9 / F, Yuting Plaza, 59 Wangqiao Road, Xiongzhou street, Liuhe District, Nanjing City, Jiangsu Province Patentee before: Nanjing bailing Intelligent Equipment Technology Co.,Ltd. |
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Granted publication date: 20170308 |
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