CN208517569U - A kind of electroplating pool chromium mist recovery system - Google Patents
A kind of electroplating pool chromium mist recovery system Download PDFInfo
- Publication number
- CN208517569U CN208517569U CN201820328252.0U CN201820328252U CN208517569U CN 208517569 U CN208517569 U CN 208517569U CN 201820328252 U CN201820328252 U CN 201820328252U CN 208517569 U CN208517569 U CN 208517569U
- Authority
- CN
- China
- Prior art keywords
- recycling
- electroplating pool
- chromium
- moister
- collecting hood
- 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
- 238000009713 electroplating Methods 0.000 title claims abstract description 67
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims abstract description 58
- 229910052804 chromium Inorganic materials 0.000 title claims abstract description 58
- 239000011651 chromium Substances 0.000 title claims abstract description 58
- 239000003595 mist Substances 0.000 title claims abstract description 44
- 238000011084 recovery Methods 0.000 title claims abstract description 14
- 238000004064 recycling Methods 0.000 claims abstract description 64
- 238000010992 reflux Methods 0.000 claims abstract description 24
- 239000000463 material Substances 0.000 claims description 19
- 239000007788 liquid Substances 0.000 claims description 18
- 239000000956 alloy Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000008676 import Effects 0.000 claims description 4
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 abstract description 12
- 238000007747 plating Methods 0.000 abstract description 12
- 238000006243 chemical reaction Methods 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 5
- 230000006835 compression Effects 0.000 abstract description 4
- 238000007906 compression Methods 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 4
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000002925 dental caries Diseases 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005868 electrolysis reaction Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 210000000492 nasalseptum Anatomy 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 206010035664 Pneumonia Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 201000009961 allergic asthma Diseases 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 208000006673 asthma Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Electroplating Methods And Accessories (AREA)
Abstract
The utility model discloses a kind of electroplating pool chromium mist recovery systems, one open electroplating pool and recycling can are set, it is connected by a hinge moister-collecting hood lid in the avris of electroplating pool, moister-collecting hood caping end is installed by suction ventilator, air pressure pump and reflux pump are installed on recycling can, suction ventilator recycles chromium mist and connection air pressure pump is connected by hose, the chromium mist generated in plating is obstructed by moister-collecting hood lid, if and being entered in recycling can by suction ventilator and air pressure pump compression and being dispersed into carried interest air-flow by diffuser, it reacts in recycling can with recycling solution, absorb the chromium particle in chromium mist, after the chromium particle concentration in recycling solution reaches established standards, recycling containing chromium particle is also pumped into electroplating pool and participates in electroplating reaction again by reflux pump, realize the recycling purpose of chromium mist, to carry out recycling and reusing to chromium mist well, it reduces Environmental pollution, increases economic efficiency, and has good practical value.
Description
Technical field
The utility model relates to a kind of chromium mist recovery system, in particular to a kind of electroplating pool chromium mist recovery system.
Background technique
Plating is exactly to plate the process of the other metal or alloy of a thin layer on certain metal surfaces using electrolysis principle, is
The technique of the surface of metal or other materials product attachment layer of metal film is set to prevent metal oxygen to play using electrolysis
The effects of changing (as corroded), improving wearability, electric conductivity, reflective, corrosion resistance (copper sulphate etc.) and having improved aesthetic appearance.It is being electroplated
When the most commonly used is chromium plating.Chromium plating is usually with high chromium concentration acid solution chromium plating liquid.The cathode efficiency of chromium plating liquid is very poor, anode
It is that hydrogen and oxygen, a large amount of harmful chromium mists evolutions easy to form are rapidly generated on the two poles of the earth with insoluble lead electrode.Mist of chromic acid is
The liquid droplet that chromic acid volatilization is formed in air, is common in the air around electroplating activity electroplating bath.When quality in air
When concentration reaches 0.1mg/m3, Long Term Contact can cause perforation of nasal septum；If mist of chromic acid excessive concentration, the contact several months can be sent out
Raw perforation of nasal septum.Sphagitis, pneumonia and allergic asthma can additionally be caused.When mist of chromic acid concentration is lower than state health standards
When, it still is able to play contactee different degrees of damage, therefore, the plumbic acid mist of low concentration can not be ignored.This not only causes very big
Waste, and the health of operator is seriously endangered, also corroded machine, equipment etc..
Therefore the company and producer for being engaged in chromium plating production have been intended to a kind of device, carry out recycling and reusing to chromium mist, from
And environmental protection, efficient progress chromium plating production.
Utility model content
The utility model proposes a kind of electroplating pool chromium mist recovery system, by the chromium mist generated in electroplating pool by blower,
Moister-collecting hood and associated conduit recycle and condense into liquid again, are then introduced into addition electroplating pool and utilize again, avoid wasting, subtract
Few environmental pollution.
In order to solve the above-mentioned technical problem, the utility model provides the following technical solution:
A kind of electroplating pool chromium mist recovery system of the utility model, including electroplating pool, suction ventilator, recycling can, air pressure pump
And reflux pump, the electroplating pool are an open cavitys, the side of the electroplating pool open end is connected with by articulate
Moister-collecting hood lid, the avris cover of the moister-collecting hood lid buckle the top of the electroplating pool, the fixed peace in the middle part at moister-collecting hood caping end
Equipped with the suction ventilator, the side of the electroplating pool is fixedly installed with the recycling can, and it is molten that absorption is loaded in the recycling can
Liquid, the bottom end of the recycling can are arranged with diffuser, and the side of the recycling upper end is equipped with the air pressure pump, described
The air inlet conducting of air pressure pump connects the air outlet of the suction ventilator, the gas outlet conducting connection institute of the air pressure pump
Diffuser is stated, the other side of the recycling upper end is equipped with the reflux pump, and the water inlet of the reflux pump is led by conduit
Lead to the bottom end for connecing the recycling can inner cavity, the water outlet conducting of the reflux pump connects the open end of the electroplating pool, described
The avris of electroplating pool is fixedly installed with runner, and the two sides at moister-collecting hood caping end are fixedly installed with connection ring, the electricity respectively
The top of plating pond side is fixedly installed with fixed pulley, and the connection ring, which is fastened, is connected to drawstring, and fixed pulley described in the drawstring solderless wrapped connection is simultaneously
The rich side for being connected to the runner.
As a kind of optimal technical scheme of the utility model, the positive side of electroplating pool is fixedly installed with automatically controlled
Cabinet, the power control cabinet control the suction ventilator, the air pressure pump and the reflux pump by several electric control elements respectively.
As a kind of optimal technical scheme of the utility model, the top conducting of the recycling can inner cavity is connected with material liquid
Import.
As a kind of optimal technical scheme of the utility model, the side of the cover is equipped with transparent windows.
As a kind of optimal technical scheme of the utility model, the electroplating pool is cuboid or cube or cylinder body,
The cover is arch or hemispherical or cone bucket shape.
As a kind of optimal technical scheme of the utility model, the electroplating pool, the moister-collecting hood lid and the recycling can
It is made of aluminum alloy materials or stainless steel material or galvanized steel plain sheet material.
As a kind of optimal technical scheme of the utility model, the demister main body, the vane type feed distributor
It is made with the arc guide vane of aluminum alloy materials or stainless steel material or cast steel material.
Be in the utility model beneficial effect achieved: the utility model is structurally reasonable, using simple, be arranged one it is spacious
Mouthful electroplating pool and recycling can, be connected by a hinge moister-collecting hood lid in the avris of electroplating pool, suction ventilator is installed at moister-collecting hood caping end,
Air pressure pump and reflux pump are installed, suction ventilator recycles chromium mist and connection air pressure pump, electricity is connected by hose on recycling can
The chromium mist generated in plating is obstructed by moister-collecting hood lid, and is entered in recycling can by suction ventilator and air pressure pump compression by diffuser
If being dispersed into carried interest air-flow, react in recycling can with recycling solution, absorb the chromium particle in chromium mist, when recycling solution
In chromium particle concentration reach established standards after, reflux pump by the recycling containing chromium particle be also pumped into electroplating pool again participate in electricity
Plating reaction, realizes the recycling purpose of chromium mist, to carry out recycling and reusing to chromium mist well, reduces environmental pollution,
It increases economic efficiency.
Detailed description of the invention
Attached drawing is used to provide a further understanding of the present invention, and constitutes part of specification, practical with this
Novel embodiment is used to explain the utility model together, does not constitute limitations of the present invention.In the accompanying drawings:
Fig. 1 is the utility model moister-collecting hood lid closure schematic diagram；
Fig. 2 is that the utility model moister-collecting hood lid opens schematic diagram；
In figure: 1, electroplating pool；2, moister-collecting hood lid；3, suction ventilator；4, recycling can；5, diffuser；6, air pressure pump； 7,
Reflux pump；8, runner；9, connection ring；10, fixed pulley；11, drawstring；12, power control cabinet.
Specific embodiment
It is illustrated below in conjunction with preferred embodiment of the attached drawing to the utility model, it should be understood that described herein excellent
It selects embodiment to be only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1
As shown in Figs. 1-2, the utility model provides a kind of electroplating pool chromium mist recovery system, including electroplating pool 1, suction ventilator 3,
Recycling can 4, air pressure pump 6 and reflux pump 7, electroplating pool 1 are an open cavitys, and the side of 1 open end of electroplating pool passes through
Articulate is connected with moister-collecting hood lid 2, and the avris cover of moister-collecting hood lid 2 buckles the top of electroplating pool 1, the middle part on 2 top of moister-collecting hood lid
It is fixedly installed with suction ventilator 3, the side of electroplating pool 1 is fixedly installed with recycling can 4, and absorbent solution is loaded in recycling can 4, recycles
The bottom end of tank 4 is arranged with diffuser 5, and the side on 4 top of recycling can is equipped with air pressure pump 6, the air inlet of air pressure pump 6
Conducting connection suction ventilator 3 air outlet, air pressure pump 6 gas outlet conducting connection diffuser 5,4 top of recycling can it is another
Side is equipped with reflux pump 7, and the bottom end of connection 4 inner cavity of recycling can is connected by conduit for the water inlet of reflux pump 7, and reflux pump 7 goes out
The open end of mouth of a river conducting connection electroplating pool 1, the avris of electroplating pool 1 are fixedly installed with runner 8, the two sides on 2 top of moister-collecting hood lid
It is fixedly installed with connection ring 9 respectively, the top of 1 side of electroplating pool is fixedly installed with fixed pulley 10, and connection ring 9, which is fastened, is connected to drawstring
11,11 solderless wrapped connection fixed pulley 10 of drawstring and the rich side for being connected to runner 8.
The working principle and process of the utility model are: rotating wheel 8, then runner 8 is pulled by drawstring 11 and connection ring 9
The angle of the overturning setting of moister-collecting hood lid 2, staff will need the article that is electroplated to be placed into electroplating pool 1 to carry out electroplating operations,
Then moister-collecting hood lid 2 is fastened to the top of electroplating pool 1 again by runner 8, the electrochemical reaction that generation is electroplated at this time can generate
Chromium mist, chromium mist are obstructed by moister-collecting hood lid 2, and are entered in recycling can 4 by suction ventilator 3 and the compression of air pressure pump 6 by diffuser
If 5 are dispersed into carried interest air-flow, react in recycling can 4 with recycling solution, absorb the chromium particle in chromium mist, it is molten when recycling
After chromium particle concentration in liquid reaches established standards, the recycling containing chromium particle is also pumped into electroplating pool 1 by reflux pump 7 to be joined again
With electroplating reaction, the recycling purpose of chromium mist is realized.
Further, the positive side of electroplating pool 1 is fixedly installed with power control cabinet 12, and power control cabinet 12 passes through several electric control elements point
Not Kong Zhi suction ventilator 3, air pressure pump 6 and reflux pump 7, staff by power control cabinet 12 control suction ventilator 3, air pressure pump
6 and reflux pump 7 work, thus well to chromium mist carry out recycling and reusing, reduce environmental pollution, increase economic efficiency.
Further, the top conducting of 4 inner cavity of recycling can is connected with material liquid import 13, and material liquid import 13 is for supplementing back
Recycling reaction solution in closed cans 4, allow the utility model continue to chromium mist carry out recycling and reusing.
Further, the side of the cover 2 is equipped with transparent windows, recycles state convenient for observation electro-plating situation and chromium mist.
Further, electroplating pool 1 is cuboid or cube or cylinder body, and the cover 2 is arch or hemispherical or cone bucket shape,
The two can flexible setting according to actual needs so that the utility model has wide in range use scope.
Further, electroplating pool 1, moister-collecting hood lid 2 and recycling can 4 are by aluminum alloy materials or stainless steel material or galvanized steel plate
Material is made, aluminum alloy materials, stainless steel material and cast steel material is firm in structure, good corrosion resistance, the utility model can be enabled to obtain
Obtain service life persistently.
The utility model is structurally reasonable, uses simple, setting one open electroplating pool 1 and recycling can 4, in electroplating pool 1
Avris be connected by a hinge moister-collecting hood lid 2, suction ventilator 3 is installed on 2 top of moister-collecting hood lid, installs air pressure pump 6 on recycling can 4
With reflux pump 7, suction ventilator 3 recycles chromium mist and connection air pressure pump 6 is connected by hose, and the chromium mist generated in plating is by collection mist
The cover 2 obstructs, and if being entered in recycling can 4 by suction ventilator 3 and the compression of air pressure pump 6 and by diffuser 5 being dispersed into carried interest
Air-flow reacts with recycling solution in recycling can 4, absorbs the chromium particle in chromium mist, when the chromium particle in recycling solution is dense
After degree reaches established standards, the recycling containing chromium particle is also pumped into electroplating pool 1 and participates in electroplating reaction again by reflux pump 7, real
The recycling purpose of existing chromium mist reduces environmental pollution to carry out recycling and reusing to chromium mist well, improves economic effect
Benefit has good practical value.
The utility model is structurally reasonable, and a demister main body 1 is arranged, and vertically connects one at the middle part of demister main body 1
A feed inlet 4 is fitted into the cabinet of one rectangle of installation in feed inlet 4 as sub-material grid case 5, in the inner cavity of sub-material grid case 5
Being symmetrically arranged has what several forms of bursting at the seams were distributed to divide guide vane 6, and the outlet of two pairs of points of guide vanes 6 is respectively directed to the first discharging
Mouth 2 and the second discharge port 3, are equipped with equal drift net 7, work as fluid between sub-material grid case 5 and the first discharge port 2, the second discharge port 3
It after the entrance of feed inlet 4, is successively shunted in sub-material grid case 5 by several points of guide vanes 6, and further by equal drift net 7
It flows, is finally exported from the first discharge port 2 and the second discharge port 3, (or liquid hammer) can be avoided droplets in demister main body 1
Wall or feeding device ontology frontal impact, to reduce the generation of shearing force；Prevent droplet distribution at more tiny mist
And low charging momentum, it is uniformly distributed so that gas be promoted to be formed in container section；It avoids charging pressure drop from reducing, is thering is liquid hammer to deposit
In case, liquid hammer is effectively cut, the interference because of liquid hammer is avoided to lead to the big ups and downs of liquid level and the destruction to foam removal element；
The generation of fine droplets and the common sense of emulsion are avoided, gas-liquid is promoted and feeds distributing homogeneity；Reentrainment is avoided droplets from, is reduced
Slug amount of flow reduces the liquid load of demister, and degree big to the greatest extent realizes gas-liquid separation, therefore has good practical value.
Finally, it should be noted that the above is only the preferred embodiment of the utility model, it is not limited to practical
It is novel, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art,
It is still possible to modify the technical solutions described in the foregoing embodiments, or part of technical characteristic is carried out etc.
With replacement.Within the spirit and principle of the utility model, any modification, equivalent replacement, improvement and so on should all include
It is within the protection scope of the utility model.
Claims (6)
1. a kind of electroplating pool chromium mist recovery system, including electroplating pool (1), suction ventilator (3), recycling can (4), air pressure pump (6)
With reflux pump (7), which is characterized in that the electroplating pool (1) is an open cavity, the one of electroplating pool (1) open end
Side is connected with moister-collecting hood lid (2) by articulate, and the avris cover of the moister-collecting hood lid (2) buckles the top of the electroplating pool (1),
It is fixedly installed with the suction ventilator (3) in the middle part of moister-collecting hood lid (2) top, the side of the electroplating pool (1) is fixedly mounted
Have the recycling can (4), absorbent solution is loaded in the recycling can (4), the bottom end of the recycling can (4) is arranged with diffuser
(5), the side on recycling can (4) top is equipped with the air pressure pump (6), the air inlet of the air pressure pump (6)
Conducting connects the air outlet of the suction ventilator (3), and the gas outlet conducting of the air pressure pump (6) connects the diffuser (5),
The other side on recycling can (4) top is equipped with the reflux pump (7), and the water inlet of the reflux pump (7) is led by conduit
Lead to the bottom end for connecing the recycling can (4) inner cavity, the water outlet conducting of the reflux pump (7) connects opening for electroplating pool (1)
Mouth end, the avris of the electroplating pool (1) are fixedly installed with runner (8), and the two sides on moister-collecting hood lid (2) top are fixed respectively to pacify
Equipped with connection ring (9), the top of electroplating pool (1) side is fixedly installed with fixed pulley (10), and the connection ring (9), which is fastened, to be connected to
Drawstring (11), fixed pulley (10) described in drawstring (11) solderless wrapped connection and the rich side for being connected to the runner (8).
2. a kind of electroplating pool chromium mist recovery system according to claim 1, which is characterized in that electroplating pool (1) front
Side be fixedly installed with power control cabinet (12), the power control cabinet (12) controls the suction ventilator by several electric control elements respectively
(3), the air pressure pump (6) and the reflux pump (7).
3. a kind of electroplating pool chromium mist recovery system according to claim 1, which is characterized in that recycling can (4) inner cavity
Top conducting be connected with material liquid import (13).
4. a kind of electroplating pool chromium mist recovery system according to claim 1, which is characterized in that the side of the cover (2)
Equipped with transparent windows.
5. a kind of electroplating pool chromium mist recovery system according to claim 1, which is characterized in that the electroplating pool (1) is long
Cube or cube or cylinder body, the cover (2) are arch or hemispherical or cone bucket shape.
6. a kind of electroplating pool chromium mist recovery system according to claim 2, which is characterized in that the electroplating pool (1), described
Moister-collecting hood lid (2) and the recycling can (4) are made of aluminum alloy materials or stainless steel material or galvanized steel plain sheet material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820328252.0U CN208517569U (en) | 2018-03-09 | 2018-03-09 | A kind of electroplating pool chromium mist recovery system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820328252.0U CN208517569U (en) | 2018-03-09 | 2018-03-09 | A kind of electroplating pool chromium mist recovery system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208517569U true CN208517569U (en) | 2019-02-19 |
Family
ID=65340949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820328252.0U Expired - Fee Related CN208517569U (en) | 2018-03-09 | 2018-03-09 | A kind of electroplating pool chromium mist recovery system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208517569U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113943969A (en) * | 2020-11-30 | 2022-01-18 | 睦技研株式会社 | Method for treating scattered matter in plating plant and plating apparatus used for the same |
-
2018
- 2018-03-09 CN CN201820328252.0U patent/CN208517569U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113943969A (en) * | 2020-11-30 | 2022-01-18 | 睦技研株式会社 | Method for treating scattered matter in plating plant and plating apparatus used for the same |
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| GR01 | Patent grant | ||
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Granted publication date: 20190219 |