CN102755818B - UV spray painting waste gas purification system and method - Google Patents
UV spray painting waste gas purification system and method Download PDFInfo
- Publication number
- CN102755818B CN102755818B CN201110105001.9A CN201110105001A CN102755818B CN 102755818 B CN102755818 B CN 102755818B CN 201110105001 A CN201110105001 A CN 201110105001A CN 102755818 B CN102755818 B CN 102755818B
- Authority
- CN
- China
- Prior art keywords
- waste gas
- process chamber
- spraying waste
- vertical clapboard
- water tank
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 51
- 239000002912 waste gas Substances 0.000 title claims abstract description 38
- 238000000746 purification Methods 0.000 title claims abstract description 26
- 238000007592 spray painting technique Methods 0.000 title abstract 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000004140 cleaning Methods 0.000 claims abstract description 29
- 238000005507 spraying Methods 0.000 claims abstract description 29
- 239000003973 paint Substances 0.000 claims abstract description 28
- 239000003513 alkali Substances 0.000 claims abstract description 10
- 239000000375 suspending agent Substances 0.000 claims abstract description 8
- 239000007789 gas Substances 0.000 claims abstract description 7
- 230000008569 process Effects 0.000 claims description 39
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 37
- 239000007921 spray Substances 0.000 claims description 21
- 125000004122 cyclic group Chemical group 0.000 claims description 15
- 239000004922 lacquer Substances 0.000 claims description 15
- 238000001179 sorption measurement Methods 0.000 claims description 13
- 239000000945 filler Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000004743 Polypropylene Substances 0.000 claims description 4
- -1 polypropylene Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 9
- 238000007599 discharging Methods 0.000 abstract description 6
- 229910052799 carbon Inorganic materials 0.000 abstract description 5
- 239000003795 chemical substances by application Substances 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 abstract description 4
- 230000036541 health Effects 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 2
- 238000004887 air purification Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000567 combustion gas Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 239000005416 organic matter Substances 0.000 description 2
- 239000012855 volatile organic compound Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007385 chemical modification Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003020 moisturizing effect Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention belongs to the technical field of air purification, and provides a UV spray painting waste gas purification system and a UV spray painting waste gas purification method. The UV spray painting waste gas purification system comprises a processing chamber provided with a waste gas inlet and a gas discharging port, and a circulation water tank. A spraying pipe network, cleaning balls and an active carbon absorption unit are arranged in the processing chamber. A water pump communicates the spraying pipe network and the circulation water tank. The system is characterized in that porous transverse separation plates are arranged in the processing chamber; the cleaning balls are stacked on the transverse separation plates and are positioned below water nozzles of the spraying pipe network; the active carbon absorption unit is arranged above the nozzles and below the gas discharging port; and an alkali solution with added paint removing agent and suspending agent are placed in the circulation water tank. With the UV spray painting waste gas purification system and method provided by the invention, an integral whole-course purification technology is realized. The purification efficiency is high. Discharged waste gas reaches national discharging standards, does not pollute the environment, and does not harm health of people.
Description
Technical field
The present invention relates to exhaust gas purifying treatment system and method, particularly relate to a kind of UV paint spraying waste gas purifying system and method.
Background technology
In industrial processes, especially adopt UV to spray paint in the field such as electronics, automobile, aviation and communication to carry out product surface process increasingly extensive.In UV painting process, in most cases lacquer spraying waste gas is only emptying at once after one Water curtain machine process, particle (coating cloud), volatile organic matter (VOCs) and odor concentration etc. all exceed discharging standards, contaminated air, harm people's health.UV sprays paint and normally adopts automatic production line to carry out, and produces exhausted air quantity large, is difficult to process.
Application number be 200910041589.9 Chinese patent application disclose a kind of spray paint exhaust gas purification equipment and purification method, although to a certain degree can solve a process difficult problem for lacquer spraying waste gas, its complex structure, equipment manufacturing cost is high, and treating capacity is little.
Summary of the invention
The object of the invention is to the defect overcoming prior art, a kind of purification efficiency is high, energy consumption is low, safe and reliable, cost is low UV paint spraying waste gas purifying system and method are provided.
The present invention's adopted technical scheme of dealing with problems is:
A kind of UV paint spraying waste gas purifying system, comprise the process chamber and cyclic water tank that are provided with exhaust gas entrance and exhaust outlet, spray pipe network, cleaning ball and activated carbon adsorption unit is provided with in process chamber, water pump is communicated with spray pipe network and cyclic water tank, be provided with the diaphragm plate of porous in described process chamber, described cleaning ball to be stacked on diaphragm plate and to be in below the sprinkler head of spray pipe network; Described activated carbon adsorption unit is arranged at above shower nozzle and below exhaust outlet; The aqueous slkali being added with paint remover, suspending agent is housed in cyclic water tank described in described cyclic water tank.
Described process chamber is divided into highly different two parts; Be provided with the second diaphragm plate through the first diaphragm plate of the porous of whole process chamber and the porous through higher process chamber part, on first and second diaphragm plate, heap is equipped with cleaning ball and is provided with sprinkler head above it.
The vertical clapboard being provided with three or more compared with lower part of described process chamber, one of them vertical clapboard is arranged at described process chamber higher part and divides and the boundary compared with lower part; Cleaning ball on described first diaphragm plate is stacked in and is positioned at the vertical clapboard place of boundary near this.
Described cleaning ball material is polypropylene.
Described alkali is NaOH.
The present invention also provides a kind of UV lacquer spraying waste gas purification method, comprises the following steps: UV lacquer spraying waste gas passes through and is added with paint remover, the aqueous slkali spray cleaning of suspending agent also passes through the filler filtration, purification that cleaning ball filler is housed; After purification, lacquer spraying waste gas is emptying after activated carbon adsorption unit purification.
Beneficial effect of the present invention: adopt the recirculated water spray and the pre-treatment of cleaning ball filter screen and charcoal absorption post processing that are added with A, B agent and highly basic, realize integrated omnidistance purification techniques, special disposal UV lacquer spraying waste gas, so purification efficiency of the present invention is high, combustion gas reaches discharging standards, do not pollute the environment, the healthy of the people can not be endangered; Owing to only needing to start water circulating pump, be added with the recirculated water reusable edible of A, B agent and alkali sheet (NaOH), the scum silica frost on liquid level just can clean out on circulating water chennel, so the present invention has energy-saving consumption-reducing, safe and reliable advantage.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is a kind of according to the preferred embodiment of the invention principle schematic of UV paint spraying waste gas purifying system.
Detailed description of the invention
With reference to Fig. 1, system is established in a kind of UV lacquer spraying waste gas purification, comprises process chamber 10, is located at the outer and cyclic water tank 20 be communicated with it of process chamber 10, is located at the spray pipe network 30 between process chamber 10 and cyclic water tank 20 and the cleaning ball 40 be arranged in process chamber 10 and activated carbon adsorption unit 50.
Process chamber 10 is divided into highly different two parts, the sidewall handing over lower part is provided with exhaust gas entrance 11, is provided with exhaust outlet 17 at the top that higher part is divided.In process chamber 10, be provided with the first diaphragm plate 12 of porous through whole process chamber, the higher part through process chamber 10 divides the second diaphragm plate 16 being provided with porous corresponding to the tip position place compared with lower part.Vertical clapboard 13,14 and 15 is provided with in the comparatively lower part of process chamber 10, the top that vertical clapboard 13 and 15 is divided compared with support by process chamber 10 is to downward-extension, vertical clapboard 14 is by the first diaphragm plate 12 to downward-extension, and the higher part that vertical clapboard 15 is in process chamber 10 is divided and the boundary compared with lower part.
The aqueous solution containing removing paint remover, suspending agent and NaOH is housed in cyclic water tank 20.Do not illustrate in figure that chamber bottom is also provided with the unidirectional header tank leading to cyclic water tank 20.Cyclic water tank 20 is also provided with the device of moisturizing and A, B and NaOH.
Spray pipe network 30 comprises water-supply-pipe 31, water pump 32, water-supply-pipe 33 and water pump 34.Water-supply-pipe 31 is connected with cyclic water tank 20 by water pump 32, is provided with some sprinkler heads 311 being positioned on the water-supply-pipe of process chamber 10 compared with the top of lower part, is in the top of the first diaphragm plate 12.Water-supply-pipe 33 is connected with cyclic water tank 20 by water pump 34, water-supply-pipe 33 is divided into two-layer in the higher part of process chamber 10 is divided, wherein one deck comparatively low level in the second diaphragm plate 16 position, be provided with sprinkler head 332, another layer of high bit, above the second diaphragm plate 16, is provided with sprinkler head 331.
Cleaning ball 40 part is stacked in the region of the close vertical clapboard 15 on the first diaphragm plate 12.Another part cleaning ball 40 to be stacked on the second diaphragm plate 16 in all regions.The material of cleaning ball 40 is polypropylene.
The higher part that activated carbon adsorption unit 50 is arranged on process chamber 10 is divided near top place, above sprinkler head 331.
Such process chamber 10 is function-differentiated is three unit, is respectively spray pipe network, cleaning ball filter screen, charcoal absorption.Spray pipe network unit removal adhesion agent as much as possible, pigment, resin and impurity etc., produce particle (coating cloud) etc. in cleaning ball strainer filtering waste gas.Activated carbon adsorption unit is for the organic matter (VOC in waste gas
s) and foul smell rise absorption and filtration, make combustion gas reach discharging standards, do not pollute the environment, the healthy of the people can not be endangered.
During work, start water pump, spray by under sprinkler head after the recirculated water being added with A, B agent and NaOH enters spray pipe network 30 by water pump, lacquer spraying waste gas then sucks process chamber 10 by entrance, advance towards cleaning ball screen pack unit, repeatedly by alkali lye drip washing, and through cleaning ball screen pack unit.Spray pipe network and nozzle is had constantly to spray alkali lye above screen pack unit, the fully wetting cleaning ball filler be contained in screen pack, its surface is made to form alkali lye diaphragm, gluing material, thickener etc. in waste gas contained by coating cloud fully contact with above-mentioned alkali lye film, there is chemical reaction and modification, lose adhesive faces and washed away to get off to fall into bottom body equipment by the alkali lye constantly sprayed and flow into circulating water chennel.Waste gas enters activated carbon adsorption unit 50, containing O after leaving the filtration of cleaning ball filler
3with residual pollutant organic molecule can adsorb by active carbon hole, O
3with is simultaneously continued oxidation reaction occurs at activated carbon capillary inner surface by the organic molecule adsorbed, generation CO
2and H
2o and being removed, makes waste gas be cleaned further, improves removal efficiency.Meanwhile, active carbon can also adsorb other remaining impurity, does last purification thoroughly.Finally, the waste gas of purification outwards discharges through exhaust outlet.
Wherein, the effect of paint remover eliminates UV in air to paint the viscosity of particle.Can select the product that Dongguan City Long Teng Environmental Protection Technology Co., Ltd provides, model is DP-A903#, and its outward appearance is band blue light liquid, acid-base value PH: ~ 3, and proportion is 1.01-1.03.Use amount is determined according to the UV amount of spraying paint, the amount of paint that can use by production line: paint remover=100: 15 add (mass ratio).
Wherein, the effect of suspending agent makes, as the paint slag cohesion in recirculated water suspends, to be convenient to remove.Can select the product that Dongguan City Long Teng Environmental Protection Technology Co., Ltd provides, model is DP-B310#, and its outward appearance is micro-slime body, acid-base value PH: ~ 7, and proportion is ~ 1.0.Use amount is determined according to the UV amount of spraying paint, the amount of paint that can use by production line: paint remover=100: 15 add (mass ratio).
Wherein, the amount of NaOH adds 0.5kg be advisable by every 1 ton of the water yield in cyclic water tank.Just need newly to add NaOH if pH value is less than 8 in circulating water chennel.
The present invention rationally scientifically have employed multiple technologies means process UV lacquer spraying waste gas, mainly: adopt be added with paint remover, suspending agent and highly basic recirculated water spray and cleaning ball screen pack unit eliminate coating cloud sticky particles thing; Adopt activated carbon adsorption unit absorption residual ozone molecule (O
3) and organic molecule, continue oxidative decomposition occurs in the micropore that adsorbent is huge; Process lacquer spraying waste gas of the present invention, compared with other technology, has reliable, that purification efficiency is high, processing cost is low, energy-saving and cost-reducing, floor space is few, cost is low advantage.Because organic molecule " is cleaned " in activated carbon capillary, based on chemisorbed, mainly there is chemical reaction in activated carbon adsorption unit, physical absorption is auxiliary, so be different from simple physical absorption, therefore active carbon reach capacity and time of losing efficacy long, so its high adsorption capacity, durable, and it is not easily blocked, even if after using blocking all the year round, cleaning regeneration is also easy to, and has the advantage in obvious Technological Economy compared with pure physical absorption.
Above content is in conjunction with concrete preferred embodiment further description made for the present invention, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, make concrete change or change and all belong to protection scope of the present invention.
Claims (6)
1. a UV paint spraying waste gas purifying system, comprise the process chamber and cyclic water tank that are provided with exhaust gas entrance and exhaust outlet, spray pipe network, cleaning ball and activated carbon adsorption unit is provided with in process chamber, water pump is communicated with spray pipe network and cyclic water tank, it is characterized in that: described process chamber is divided into highly different two parts, be provided with the second diaphragm plate through the first diaphragm plate of the porous of whole process chamber and the porous through higher process chamber part, on first and second diaphragm plate, heap is equipped with cleaning ball and is provided with sprinkler head above it; The comparatively lower part of described process chamber is disposed with the first vertical clapboard, the second vertical clapboard, the 3rd vertical clapboard at least three vertical clapboards, first vertical clapboard, the 3rd vertical clapboard by process chamber compared with the top of lower part to downward-extension, second vertical clapboard by the first diaphragm plate to downward-extension, 3rd vertical clapboard is arranged at process chamber higher part and divides and the boundary compared with lower part, and the cleaning ball on described first diaphragm plate is stacked in the vertical clapboard place near being positioned at boundary; Described activated carbon adsorption unit is arranged at above shower nozzle and below exhaust outlet; The aqueous slkali being added with paint remover, suspending agent is housed in described cyclic water tank.
2. the UV paint spraying waste gas purifying system according to any one of claim 1, is characterized in that: described cleaning ball material is polypropylene.
3. the UV paint spraying waste gas purifying system according to any one of claim 1, is characterized in that: described alkali is NaOH.
4. one kind adopts the UV lacquer spraying waste gas purification method of UV paint spraying waste gas purifying system as claimed in claim 1, it is characterized in that, comprise the following steps: UV lacquer spraying waste gas passes through and is added with paint remover, the aqueous slkali spray cleaning of suspending agent also passes through the filler filtration, purification that cleaning ball filler is housed, and the flow direction of spray liquid and the waste gas streams of process are to parallel to each other; After purification, lacquer spraying waste gas is emptying after activated carbon adsorption unit purification.
5. UV lacquer spraying waste gas purification method according to claim 4, is characterized in that: described cleaning ball material is polypropylene.
6. UV lacquer spraying waste gas purification method according to claim 4, is characterized in that: described alkali is NaOH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110105001.9A CN102755818B (en) | 2011-04-26 | 2011-04-26 | UV spray painting waste gas purification system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110105001.9A CN102755818B (en) | 2011-04-26 | 2011-04-26 | UV spray painting waste gas purification system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102755818A CN102755818A (en) | 2012-10-31 |
| CN102755818B true CN102755818B (en) | 2015-01-28 |
Family
ID=47050608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110105001.9A Active CN102755818B (en) | 2011-04-26 | 2011-04-26 | UV spray painting waste gas purification system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102755818B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103212257B (en) * | 2013-03-22 | 2015-11-18 | 顾怀宇 | For removing the gas cleaning plant of PM2.5 |
| CN103752122B (en) * | 2014-02-11 | 2015-11-11 | 江苏佳有环保科技有限公司 | Paint gas oxidation rinsing tower apparatus |
| CN103977668A (en) * | 2014-05-29 | 2014-08-13 | 厦门市大净环保科技有限公司 | Combined type paint mist purification device |
| CN104258680A (en) * | 2014-10-13 | 2015-01-07 | 苏州艾斯特工业设备有限公司 | Waste gas treatment cabinet |
| CN104258679A (en) * | 2014-10-13 | 2015-01-07 | 苏州艾斯特工业设备有限公司 | Wet dust removal table |
| CN106064010A (en) * | 2015-06-29 | 2016-11-02 | 崔子扬 | A kind of air washer filtered for waste gas absorption and double purification mechanism |
| CN106824650A (en) * | 2017-04-07 | 2017-06-13 | 王莉娜 | High-efficency spraying device is used in a kind of computer computer host box production |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5180405A (en) * | 1992-06-09 | 1993-01-19 | Chi Chang Enterprises Co., Ltd. | Oily smoke purifying apparatus of central processing system type |
| CN101455930A (en) * | 2008-12-08 | 2009-06-17 | 裴登明 | Paint mist purification device |
| CN101623583A (en) * | 2009-07-29 | 2010-01-13 | 蔡宇峰 | Spray paint waste gas purification device and purification method therefor |
-
2011
- 2011-04-26 CN CN201110105001.9A patent/CN102755818B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5180405A (en) * | 1992-06-09 | 1993-01-19 | Chi Chang Enterprises Co., Ltd. | Oily smoke purifying apparatus of central processing system type |
| CN101455930A (en) * | 2008-12-08 | 2009-06-17 | 裴登明 | Paint mist purification device |
| CN101623583A (en) * | 2009-07-29 | 2010-01-13 | 蔡宇峰 | Spray paint waste gas purification device and purification method therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102755818A (en) | 2012-10-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102755818B (en) | UV spray painting waste gas purification system and method | |
| CN202105575U (en) | Wet type waste gas comprehensive control apparatus | |
| CN201445890U (en) | Spray paint exhaust gas purification equipment | |
| CN101623583A (en) | Spray paint waste gas purification device and purification method therefor | |
| CN203556247U (en) | Gas-phase washing tower | |
| CN206746314U (en) | A kind of foul gas processing unit | |
| CN205461586U (en) | Furniture processing japanning room organic waste gas purifying system | |
| CN203458937U (en) | Waste gas treatment device | |
| CN202460442U (en) | Acid mist absorption processing device of high-pressure water mist | |
| CN206404499U (en) | Lacquer spraying waste gas processing unit | |
| CN205287966U (en) | Waste gas purifying equipment | |
| CN208302433U (en) | A kind of dyestuff waste gas purification apparatus | |
| CN206924614U (en) | Sticky dust odor purification tower | |
| CN206444445U (en) | A kind of organic exhaust gas high-efficient purification treatment device | |
| CN205216538U (en) | Spray and adsorb integrated device | |
| CN219836304U (en) | VOC exhaust-gas treatment structure | |
| CN218741223U (en) | Glass steel spray tower flue gas diverging device | |
| CN204799033U (en) | Exhaust treatment device of paint spray booth | |
| CN108525496B (en) | Sulfide purification treatment method for industrial waste gas | |
| CN208340499U (en) | A kind of household spraying emission-control equipment | |
| CN206566669U (en) | The photodissociation of lacquer spraying waste gas spiral demisting formula separates adsorptive purifier | |
| CN108525442B (en) | Air dust wet settling treatment equipment for environmental improvement | |
| CN206262354U (en) | Integrated waste gas dedusting odor removal | |
| CN204684880U (en) | Industrial waste gas washer | |
| CN209952474U (en) | Liquid washing air purifier |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518103 Shenzhen Road, Heping District, Guangdong City, Fuyong Province, Malata Park, Park Patentee after: Shenzhen Dingsheng Precision Industry Co., Ltd. Address before: 518103 Shenzhen Road, Heping District, Guangdong City, Fuyong Province, Malata Park, Park Patentee before: Shenzhen Dingshengda Mold Development Co., Ltd. |