CN108723545A - A kind of environment-friendly type scolding tin flue gas processing device - Google Patents
A kind of environment-friendly type scolding tin flue gas processing device Download PDFInfo
- Publication number
- CN108723545A CN108723545A CN201810610263.2A CN201810610263A CN108723545A CN 108723545 A CN108723545 A CN 108723545A CN 201810610263 A CN201810610263 A CN 201810610263A CN 108723545 A CN108723545 A CN 108723545A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- environment
- scolding tin
- friendly type
- gas processing
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/81—Solid phase processes
- B01D53/82—Solid phase processes with stationary reactants
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/38—Removing components of undefined structure
- B01D53/40—Acidic components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K3/00—Tools, devices, or special appurtenances for soldering, e.g. brazing, or unsoldering, not specially adapted for particular methods
- B23K3/08—Auxiliary devices therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
Abstract
The invention discloses a kind of environment-friendly type scolding tin flue gas processing devices, including device sheet, pedestal is arranged in described device ontology, process chamber is arranged in the top of the pedestal, top setting the second absorption chamber of the pedestal, helix tube is arranged in the inside of the second absorption chamber, equally distributed port is set on the helix tube, one-way ventilating film is installed on the one-way ventilating film, the inside of the process chamber is divided into the first absorption chamber and water tank, outlet pipe is arranged in the inside of the first absorption chamber, outlet valve is set on the outlet pipe, cooler bin is arranged in the left side wall of the process chamber, cooling tube is arranged in the inside of the cooler bin.The configuration of the present invention is simple; flue gas is handled by loop structure; it being capable of the effectively save energy; pass through alkaline adsorbent, acticarbon and the triple fume treatments of water process; purified treatment effectively is carried out to pernicious gas, greatly environment is protected, it is easy to use; the feature of environmental protection is good, highly practical.
Description
Technical field
The present invention relates to field of environment protection, specifically a kind of environment-friendly type scolding tin flue gas processing device.
Background technology
Scolding tin is the essential industry raw material that electronic component is connected in welding circuit, is a kind of lower melting-point weldering
Material, refers mainly to the solder made of kamash alloy.The production method of scolding tin is first with legal system ingot is melted, and then pressure processing is become a useful person.
Scolding tin is widely used in electronics industry, household appliances manufacturing, auto manufacturing, maintenance industry and daily life.
It will produce a large amount of weldering cigarette in welding operating process, a large amount of poisonous and harmful substance carried inside these weldering cigarettes,
Very unfavorable to the health of people, this just needs weldering fume and dust device to carry out absorption processing to these weldering cigarettes, and modern weldering cigarette removes
Generally only band is there are one dust lane is removed for dirt device, and the treatment effect of butt welding cigarette is not fine, and the modern weldering fume and dust device of another aspect is not
Easy cleaning, and when being dusted, dust removing tube and dust excluding hood all are easy to form condensed water, if these condensed waters into
Enter to can not only substantially reduce dust removing effects inside cleaner, but also the PG plates of plastic packaging motor can be to PG plates when welding
Surface and welding pin spray scaling powder, thus scaling powder volatilizees when welding machine, produces a large amount of flue gas, and these
Flue gas carries one pungent taste, very big to the injury of human body, and the influence for environment is also very big.
Invention content
The purpose of the present invention is to provide a kind of environment-friendly type scolding tin flue gas processing devices, to solve to carry in above-mentioned background technology
The problem of going out.
To achieve the above object, the present invention provides the following technical solutions：
Pedestal, the top of the pedestal is arranged in a kind of environment-friendly type scolding tin flue gas processing device, including device sheet, described device ontology
Process chamber is set, is fixedly connected by welding between the process chamber and pedestal, the top setting second of the pedestal
Chamber is adsorbed, is fixedly connected by welding between the second absorption chamber and process chamber, the second absorption chamber
Inside helix tube is set, equally distributed port is set on the helix tube, one-way ventilating is installed on the one-way ventilating film
Film is fixedly connected between the one-way ventilating film and the inner wall of port, the inside of the process chamber be divided into the first absorption chamber and
Outlet pipe is arranged in the inside of water tank, the first absorption chamber, and the end of the outlet pipe and the bottom of helix tube are interconnected,
Outlet valve is set on the outlet pipe, and the inside of the outlet valve and outlet pipe is interconnected, and the left side wall of the process chamber is set
Cooler bin is set, the cooler bin is fixedly connected with the effect by screw between pedestal or process chamber, the inside of the cooler bin
Cooling tube is set.
As a further solution of the present invention：Fill alkaline adsorbent in the inside of the second absorption chamber.
As a further solution of the present invention：Strainer is set on the end face of the outlet valve, the strainer and outlet valve it
Between be fixedly connected by the effect of fixing buckle.
As a further solution of the present invention：Fill acticarbon in the inside of the first absorption chamber.
As a further solution of the present invention：Between the first absorption chamber and water tank by the effect of filtering grid every
It opens, is fixedly connected by welding between the filtering grid and the inner wall of process chamber.
As a further solution of the present invention：The end set of the cooling bottom of the tube is inside the inside of water tank, water tank
Circulating pump is set, is fixedly connected between the output end of the circulating pump and the end of cooling tube, the top of the cooling tube and spiral shell
The top of coil is connected with each other.
As a further solution of the present invention：Port is set on the cooler bin, and the port of lower section is water inlet, top
Port is water outlet.
As a further solution of the present invention：Intake-outlet, the intake-outlet and water tank is arranged in the side of the water tank
Inside be interconnected.
As a further solution of the present invention：Exhaust pipe, the inside of the exhaust pipe and water tank is arranged in described device ontology
It is interconnected, the top of the exhaust pipe is higher than the height of device body.
As further scheme of the invention：Installation of relief valve and guide valve on described device ontology, the blow valve
Or one end of guide valve and the inside of flue gas storage device are interconnected, the inside of the other end and process chamber is interconnected.
Compared with prior art, the beneficial effects of the invention are as follows：The configuration of the present invention is simple, by loop structure to flue gas into
Row processing, can the effectively save energy, by alkaline adsorbent, acticarbon and the triple fume treatments of water process, effectively
Purified treatment is carried out to pernicious gas, greatly environment is protected, easy to use, the feature of environmental protection is good, highly practical.
Description of the drawings
Fig. 1 is the structural schematic diagram of environment-friendly type scolding tin flue gas processing device.
Fig. 2 is the structural schematic diagram of helix tube in environment-friendly type scolding tin flue gas processing device.
Fig. 3 be environment-friendly type scolding tin flue gas processing device in A-A to sectional view.
Specific implementation mode
The technical solution of this patent is described in more detail With reference to embodiment.
- 3 are please referred to Fig.1, bottom is arranged in a kind of environment-friendly type scolding tin flue gas processing device, including device sheet, described device ontology
Process chamber 2 is arranged in the top of seat 1, the pedestal 1, is fixedly connected by welding between the process chamber 2 and pedestal 1,
Top setting the second absorption chamber 3 of the pedestal 1, between the second absorption chamber 3 and process chamber 2 by welding
It being fixedly connected, helix tube 4 is arranged in the inside of the second absorption chamber 3, and equally distributed port 5 is arranged on the helix tube 4,
One-way ventilating film 6 is installed on the one-way ventilating film 6, is fixedly connected between the one-way ventilating film 6 and the inner wall of port 5, institute
The inside filling alkaline adsorbent of the second absorption chamber 3 is stated, the inside of the process chamber 2 is divided into the first absorption chamber 7 and water tank
12, outlet pipe 8 is arranged in the inside of the first absorption chamber 7, and the end of the outlet pipe 8 is mutually interconnected with the bottom of helix tube 4
It is logical, outlet valve 9 is set on the outlet pipe 8, and the outlet valve 9 and the inside of outlet pipe 8 are interconnected, the outlet valve 9
Strainer 10 is set on end face, is fixedly connected by the effect of fixing buckle between the strainer 10 and outlet valve 9, first absorption
Acticarbon is filled in the inside of chamber 7, passes through the effect of filtering grid 11 between the first absorption chamber 7 and water tank 12
It separates, is fixedly connected by welding between the filtering grid 11 and the inner wall of process chamber 2, a left side for the process chamber 2
Cooler bin 16 is arranged in side wall, is fixedly connected by the effect of screw between the cooler bin 16 and pedestal 1 or process chamber 2, described
Cooling tube 15 is arranged in the inside of cooler bin 16, and the end set of 15 bottom of the cooling tube is in the inside of water tank 12, water tank 12
Circulating pump 14 is arranged in portion, is fixedly connected between the output end and the end of cooling tube 15 of the circulating pump 14, the cooling tube 15
The top of top and helix tube 4 be connected with each other, port 17 is set on the cooler bin 16, the port 17 of lower section is water inlet,
The port 17 of top is water outlet, and intake-outlet 13, the intake-outlet 13 and water tank 12 is arranged in the side of the water tank 12
Inside is interconnected, and exhaust pipe 18 is arranged in described device ontology, and the exhaust pipe 18 and the inside of water tank 12 are interconnected, described
The top of exhaust pipe 18 is higher than the height of device body, installation of relief valve 19 and guide valve 20 on described device ontology, described to put
One end of empty valve 19 or guide valve 20 and the inside of flue gas storage device are interconnected, and the inside of the other end and process chamber 2 is mutual
Connection.
The present invention operation principle be：When device body uses, flue gas enters process chamber 2 from guide valve 20
Flue gas middle acid substance is adsorbed by alkaline adsorbent when 2 inside of process chamber in inside, and then flue gas passes through spiral shell
One-way ventilating film 6 on coil 4 enters in helix tube 4, and the moisture in helix tube 4 is flowing, therefore flue gas is with moisture
It flows and flows together, when flue gas enters 8 inside of outlet pipe, be sent into flue gas and water by the effect of outlet valve 9
Into the first absorption chamber 7, harmful substances from flue gases is further adsorbed by acticarbon, then gas and water
It is entered in water tank 12 by the effect of filtering grid 11, has already passed through absorption twice and the gas part of water process via exhaust
Pipe 18 is discharged in air, and the water in water tank 12 is pumped by the effect of circulating pump 14 in cooling tube 15, by cooler bin 16
The effect of coolant the water in cooling tube 15 is cooled down, be then re-introduced into helix tube 4, so recycle,
The configuration of the present invention is simple is handled flue gas by loop structure, can the effectively save energy, pass through alkaline adsorbent, work
Property the carbon adsorbent and triple fume treatments of water process, purified treatment effectively is carried out to pernicious gas, greatly environment is protected
Shield, easy to use, the feature of environmental protection is good, highly practical.
The better embodiment of this patent is explained in detail above, but this patent is not limited to above-mentioned embodiment party
Formula, one skilled in the relevant art within the scope of knowledge, can also be under the premise of not departing from this patent objective
It makes a variety of changes.
Claims (10)
1. a kind of environment-friendly type scolding tin flue gas processing device, including device sheet, pedestal is arranged in described device ontology（1）, feature exists
In the pedestal（1）Top be arranged process chamber（2）, the process chamber（2）With pedestal（1）Between it is solid by welding
Fixed connection, the pedestal（1）Top setting second absorption chamber（3）, the second absorption chamber（3）With process chamber（2）It
Between be fixedly connected by welding, it is described second absorption chamber（3）Inside be arranged helix tube（4）, the helix tube（4）
The upper equally distributed port of setting（5）, the one-way ventilating film（6）Upper installation one-way ventilating film（6）, the one-way ventilating film
（6）With port（5）Inner wall between be fixedly connected, the process chamber（2）Inside be divided into the first absorption chamber（7）And water tank
（12）, the first absorption chamber（7）Inside be arranged outlet pipe（8）, the outlet pipe（8）End and helix tube（4）'s
Bottom is interconnected, the outlet pipe（8）Upper setting outlet valve（9）, the outlet valve（9）With outlet pipe（8）Inside it is mutual
Connection, the process chamber（2）Left side wall be arranged cooler bin（16）, the cooler bin（16）With pedestal（1）Or process chamber（2）It
Between be fixedly connected by the effect of screw, the cooler bin（16）Inside be arranged cooling tube（15）.
2. environment-friendly type scolding tin flue gas processing device according to claim 1, which is characterized in that the second absorption chamber
（3）Inside fill alkaline adsorbent.
3. environment-friendly type scolding tin flue gas processing device according to claim 1, which is characterized in that the outlet valve（9）End
Strainer is set on face（10）, the strainer（10）With outlet valve（9）Between be fixedly connected by the effect of fixing buckle.
4. environment-friendly type scolding tin flue gas processing device according to claim 1, which is characterized in that the first absorption chamber
（7）Inside fill acticarbon.
5. environment-friendly type scolding tin flue gas processing device according to claim 1, which is characterized in that the first absorption chamber
（7）With water tank（12）Between pass through filtering grid（11）Effect separate, the filtering grid（11）With process chamber（2）Inner wall
Between be fixedly connected by welding.
6. environment-friendly type scolding tin flue gas processing device according to claim 1, which is characterized in that the cooling tube（15）Bottom
End set in water tank（12）Inside, water tank（12）Inside setting circulating pump（14）, the circulating pump（14）Output end
With cooling tube（15）End between be fixedly connected, the cooling tube（15）Top and helix tube（4）Top be connected with each other.
7. environment-friendly type scolding tin flue gas processing device according to claim 1, which is characterized in that the cooler bin（16）On set
Set port（17）, the port of lower section（17）For water inlet, the port of top（17）For water outlet.
8. environment-friendly type scolding tin flue gas processing device according to claim 1, which is characterized in that the water tank（12）Side
Intake-outlet is set（13）, the intake-outlet（13）With water tank（12）Inside be interconnected.
9. environment-friendly type scolding tin flue gas processing device according to claim 1, which is characterized in that described device ontology setting row
Tracheae（18）, the exhaust pipe（18）With water tank（12）Inside be interconnected, the exhaust pipe（18）Top be higher than device
The height of ontology.
10. environment-friendly type scolding tin flue gas processing device according to claim 1, which is characterized in that set on described device ontology
Set blow valve（19）And guide valve（20）, the blow valve（19）Or guide valve（20）One end and flue gas storage device inside
It is interconnected, the other end and process chamber（2）Inside be interconnected.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011151236.7A CN112246095A (en) | 2018-06-13 | 2018-06-13 | Environment-friendly soldering tin flue gas processing apparatus |
| CN201810610263.2A CN108723545B (en) | 2018-06-13 | 2018-06-13 | Environment-friendly soldering tin flue gas processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810610263.2A CN108723545B (en) | 2018-06-13 | 2018-06-13 | Environment-friendly soldering tin flue gas processing apparatus |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011151236.7A Division CN112246095A (en) | 2018-06-13 | 2018-06-13 | Environment-friendly soldering tin flue gas processing apparatus |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108723545A true CN108723545A (en) | 2018-11-02 |
| CN108723545B CN108723545B (en) | 2020-12-22 |
Family
ID=63929565
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810610263.2A Active CN108723545B (en) | 2018-06-13 | 2018-06-13 | Environment-friendly soldering tin flue gas processing apparatus |
| CN202011151236.7A Withdrawn CN112246095A (en) | 2018-06-13 | 2018-06-13 | Environment-friendly soldering tin flue gas processing apparatus |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011151236.7A Withdrawn CN112246095A (en) | 2018-06-13 | 2018-06-13 | Environment-friendly soldering tin flue gas processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN108723545B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773903A (en) * | 2020-07-02 | 2020-10-16 | 辽宁机电职业技术学院 | Production welding device capable of purifying welding smoke |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120021081A (en) * | 2010-08-31 | 2012-03-08 | 한국전력공사 | Cyclone type dust collector |
| CN104353315A (en) * | 2014-11-03 | 2015-02-18 | 侨健新能源科技（苏州）有限公司 | Flue gas treatment device |
| CN205156004U (en) * | 2015-11-27 | 2016-04-13 | 江西申东环保科技有限公司 | Burn multistage cooling smoke processor of burning furnace |
| CN105727720A (en) * | 2016-04-13 | 2016-07-06 | 上海交通大学 | Spiral bubble flue gas cleaning device |
| CN206560761U (en) * | 2016-11-18 | 2017-10-17 | 永康市信政恒涂装设备有限公司 | One kind welding flue gas purifying equipment |
| CN206965406U (en) * | 2017-05-08 | 2018-02-06 | 武威市锦范工贸有限责任公司 | A kind of energy-conserving and environment-protective flue gas purifying equipment |
| CN207169356U (en) * | 2017-09-15 | 2018-04-03 | 安徽方信立华环保科技有限公司 | A kind of waste gas Environmental-protecting dust-removing mechanical device |
| CN107913569A (en) * | 2017-11-22 | 2018-04-17 | 郑州源冉生物技术有限公司 | High-efficiency type exhaust gas purification and treatment device |
-
2018
- 2018-06-13 CN CN201810610263.2A patent/CN108723545B/en active Active
- 2018-06-13 CN CN202011151236.7A patent/CN112246095A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120021081A (en) * | 2010-08-31 | 2012-03-08 | 한국전력공사 | Cyclone type dust collector |
| CN104353315A (en) * | 2014-11-03 | 2015-02-18 | 侨健新能源科技（苏州）有限公司 | Flue gas treatment device |
| CN205156004U (en) * | 2015-11-27 | 2016-04-13 | 江西申东环保科技有限公司 | Burn multistage cooling smoke processor of burning furnace |
| CN105727720A (en) * | 2016-04-13 | 2016-07-06 | 上海交通大学 | Spiral bubble flue gas cleaning device |
| CN206560761U (en) * | 2016-11-18 | 2017-10-17 | 永康市信政恒涂装设备有限公司 | One kind welding flue gas purifying equipment |
| CN206965406U (en) * | 2017-05-08 | 2018-02-06 | 武威市锦范工贸有限责任公司 | A kind of energy-conserving and environment-protective flue gas purifying equipment |
| CN207169356U (en) * | 2017-09-15 | 2018-04-03 | 安徽方信立华环保科技有限公司 | A kind of waste gas Environmental-protecting dust-removing mechanical device |
| CN107913569A (en) * | 2017-11-22 | 2018-04-17 | 郑州源冉生物技术有限公司 | High-efficiency type exhaust gas purification and treatment device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111773903A (en) * | 2020-07-02 | 2020-10-16 | 辽宁机电职业技术学院 | Production welding device capable of purifying welding smoke |
| CN111773903B (en) * | 2020-07-02 | 2022-06-17 | 辽宁机电职业技术学院 | Production welding device capable of purifying welding smoke |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108723545B (en) | 2020-12-22 |
| CN112246095A (en) | 2021-01-22 |
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| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20200929 Address after: 518034 No. 6003, Shennan Avenue, Futian District, Shenzhen City, Guangdong Province Applicant after: Li Liping Address before: 233300 Anhui city of Bengbu province Wuhe County Chengguan Town Xiangyuan District 18 building Applicant before: Li Wei |
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Effective date of registration: 20201204 Address after: 337000 Wuyi Town, Anyuan Industrial Park, Anyuan District, Pingxiang City, Jiangxi Province Applicant after: Pingxiang Baisheng Electronic Co., Ltd Address before: 518034 No. 6003, Shennan Avenue, Futian District, Shenzhen City, Guangdong Province Applicant before: Li Liping |
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