CN106016306B - Organic solvent prepainted waste gas incinerator system and its application method - Google Patents
Organic solvent prepainted waste gas incinerator system and its application method Download PDFInfo
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- CN106016306B CN106016306B CN201610346655.3A CN201610346655A CN106016306B CN 106016306 B CN106016306 B CN 106016306B CN 201610346655 A CN201610346655 A CN 201610346655A CN 106016306 B CN106016306 B CN 106016306B
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- heat exchanger
- exhaust gas
- exhaust
- tube
- gas
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- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000002912 waste gas Substances 0.000 title claims abstract description 18
- 239000003960 organic solvent Substances 0.000 title claims abstract description 15
- 239000007789 gas Substances 0.000 claims abstract description 42
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000010926 purge Methods 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 238000004140 cleaning Methods 0.000 claims abstract description 5
- 239000007788 liquid Substances 0.000 claims abstract description 5
- 238000002203 pretreatment Methods 0.000 claims abstract description 5
- 239000000779 smoke Substances 0.000 claims abstract description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 7
- 239000003546 flue gas Substances 0.000 claims description 7
- 238000010422 painting Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims 1
- 239000002904 solvent Substances 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 5
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 238000012546 transfer Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000013475 authorization Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 208000021760 high fever Diseases 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/20—Waste heat recuperation using the heat in association with another installation
- F23G2206/203—Waste heat recuperation using the heat in association with another installation with a power/heat generating installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2209/00—Specific waste
- F23G2209/14—Gaseous waste or fumes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2900/00—Special features of, or arrangements for incinerators
- F23G2900/50213—Preheating processes other than drying or pyrolysis
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Abstract
The present invention relates to a kind of waste gas combustion furnace, more particularly, to a kind of organic solvent prepainted waste gas incinerator system and its application method.It, which mainly solves the temperature that the burning furnace exhaust present in the prior art generates, to be heated to production gas, with water, harmful substance can not be removed simultaneously, energy waste is more serious, polluted environment, and can not heat transfer effect poor the technical issues of waiting.Exhaust gas is first sent into proportionality combusting device through exhaust fan and burnt into Pintsch process by the present invention, and the heat smoke of generation of burning is heating and curing the two-way feeding proportionality combusting device of the organic exhaust gas extracted out in stove by U-shaped heating tube；Workshop air is passed through by the way that the second Tube Heat Exchanger is sent to pre-treatment, change applies, the processes such as cold carry out thermal purging to steel plate by force；Fresh air is sent by curing oven hot-air mouth by the steel plate strip after curing oven baking japanning；Pretreatment cleaning liquid is heated by water- to-water heat exchanger；Residual gas is discharged by frequency control exhaust gas fan from exhaust outlet.
Description
Technical field
The present invention relates to a kind of waste gas combustion furnace, more particularly, to a kind of organic solvent prepainted waste gas incinerator system and its
Application method.
Background technology
It is using burning method processing organic exhaust gas principle:Using high fever directly the harmful substance oxidation point in exhaust gas constituents
Solution, by oxidation operation into CO2And H20.Chinese patent discloses a kind of drying room waste gases incinerator（Authorization Notice No.：
CN204901784U）, drying room waste gases incinerator include preheater, Burning Room, heat exchanger, sink；Preheater, which is mounted on, to be burnt
The outside of room is burnt, the end of preheater is equipped with exhaust gas inlet, and preheater is connect with Burning Room by the exhaust gas inlet, burned
The air inlet position of room is equipped with combustion air compensator, and heat exchanger is mounted on inside sink；Preheater, which is internally provided with, presses
Room and the heat exchanger tube being arranged in equal pressure chamber, the air inlet position of preheater install promising equal pressure chamber provide wind regime air blower and
Oxygen conten analyser, the oxygen conten analyser are connect with combustion air compensator, and the import of heat exchanger tube is connect with Burning Room, heat exchange
The outlet of pipe is connect by valve with Burning Room and heat exchanger, equal pressure chamber outlet as preheater outlet and with Burning Room
Import is connected；Burning Room is connect by high temperature valve with heat exchanger, and the heat exchanger tube that turns back is provided in heat exchanger, the heat exchange of turning back
The end of pipe is equipped with gas discharge pipe；The connector of heat exchanger tube and heat exchanger is heat exchanger low-temperature inlet, is set on heat exchangers
It is equipped with the low-temperature outlet being connected with low-temperature inlet, the connector of Burning Room and heat exchanger is heat exchanger high temperature inlet, is being exchanged heat
The hot outlet being connected with high temperature inlet is provided on device, hot outlet and low-temperature outlet are connect with gas discharge pipe；Heat exchange
Pipe and Burning Room closed communication, heat exchanger tube inside are sealed against each other with outside；Choke is installed between heat exchanger tube inside preheater
Net；Heat exchange pipe external surface is equipped with ceramic heat layer.But this temperature for burning furnace exhaust generation can not be to production gas, use
Water is heated, while can not remove harmful substance, and energy waste is more serious, polluted environment, and the effect that can not exchange heat
Fruit is poor.
Invention content
The present invention is to provide a kind of organic solvent prepainted waste gas incinerator system and its application method, mainly solves existing
There is the temperature that the burning furnace exhaust present in technology generates that can not be heated to production gas, with water, while can not will be harmful to
Substance is removed, and energy waste is more serious, polluted environment, and can not heat transfer effect poor the technical issues of waiting.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals：
The organic solvent prepainted waste gas incinerator system of the present invention, including there are one main pipeline, the main pipeline front ends
Equipped with proportionality combusting device, the middle part of main pipeline is equipped with U-shaped heating tube, the first Tube Heat Exchanger, secondary series tube heat exchange successively
Device, curing oven hot-air mouth, water- to-water heat exchanger, first Tube Heat Exchanger one end connect the exhaust outlet that can be passed through exhaust gas, the second tubulation
The both ends of heat exchanger connect workshop air entrance, change painting and thermal purging exhaust outlet respectively.The present invention is in first row tube heat exchange
Device adds U-shaped heating tube, can increase the heat exchanging process of exhaust gas, and the utilization rate of such heat is higher, and cracks more thorough
Bottom.And existing method will not increase pipe length, but the way for increasing temperature is taken, such that energy consumption is higher.
Preferably, first Tube Heat Exchanger, the second Tube Heat Exchanger are U-typed.Second tubulation heat is handed over
The both ends of parallel operation connect workshop air entrance, change painting and thermal purging exhaust outlet respectively.By the second Tube Heat Exchanger heating from
The fresh air that workshop is pumped into 500 DEG C or so send to pre-treatment, change apply, the strong processes such as cold carry out thermal purging to steel plate.
Preferably, the main pipeline rear end is connected with frequency control exhaust gas fan, frequency control exhaust gas fan goes out
Mouth connection exhaust outlet.The main pipeline of frequency control exhaust gas fan air inlet is equipped with water- to-water heat exchanger.It is heated by water- to-water heat exchanger
Pretreatment cleaning liquid.
Preferably, the U-shaped heating tube connects proportionality combusting device by two-way flue gas leading.
Preferably, the inner wall of the U-shaped heating tube is equipped with several fins, for fin arrangement into S-shaped, fin is triangle
Shape.Fin can be added in the outer wall of heating tube under normal circumstances, so as to expand heat exchange area.And the present invention is in U-shaped heating tube
The fin of triangle on inner wall is set, on the one hand increases the heat exchange area of medium, on the other hand due to being arranged in S-shaped, because
The flow direction of this medium is more rapid, so as to increase heat exchanger effectiveness.
Preferably, the inner wall of the two-way flue gas leading is equipped with several fins, fin is towards the one of proportionality combusting device
It holds to the height of one end towards U-shaped heating tube and gradually increases.It, can be with since the height of fin towards export direction is higher
Exhaust gas is put together, the effect cracked in this way is preferable.
Preferably, the upper surface of the fin is equipped with several guide pads, guide pad is outside after the cutting of fin top
It is bent.Spiral shape is formed after guide pad bending, such exhaust gas can be re-introduced into ratio in a spiral fashion in conduction
Example burner, so that the efficiency of cracking is higher.
A kind of application method using organic solvent prepainted waste gas incinerator system, the method include：Through exhaust fan
The exhaust gas containing organic solvent in curing oven is first sent into proportionality combusting device and carries out 700-800 DEG C of Pintsch process burning, burning production
Raw heat smoke 250-350 DEG C of the organic exhaust gas extracted out in stove that is heating and curing by U-shaped heating tube is to 600-750 DEG C and two-way
It is sent into proportionality combusting device；Workshop air is passed through from workshop air entrance, 450-550 DEG C is heated to by the second Tube Heat Exchanger
It send to pre-treatment, change applies, the processes such as cold carry out thermal purging to steel plate by force；Fresh air is heated to by curing oven hot-air mouth
600-700 DEG C or so the steel plate strip being sent into after curing oven baking japanning；Pretreatment cleaning liquid is heated by water- to-water heat exchanger；Remaining gas
Body is discharged by frequency control exhaust gas fan from exhaust outlet.
Therefore, the present invention sets heat exchanger in original incinerator, after exhaust gas temperature in itself and cracking
The high temperature of generation heats, while again remove harmful substance to production gas, with water, not only saves the energy, but also protect
Environment, it is simple and reasonable for structure the features such as.
Description of the drawings
Attached drawing 1 is a kind of structure diagram of the present invention；
Attached drawing 2 is a kind of structure diagram of the U-shaped heating tube of the present invention；
Attached drawing 3 is a kind of structure diagram of the two-way flue gas leading of the present invention.
Parts, position and number in figure：Main pipeline 1, proportionality combusting device 2, the first Tube Heat Exchanger 3, exhaust outlet 4,
Two-way flue gas leading 5, frequency control exhaust gas fan 6, exhaust outlet 7, the second Tube Heat Exchanger 8, workshop air entrance 9, change apply and
Thermal purging exhaust outlet 10, curing oven hot-air mouth 11, water- to-water heat exchanger 12, U-shaped heating tube 13, fin 14, fin 15, guide pad 16.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment：The organic solvent prepainted waste gas incinerator system of this example, such as Fig. 1, including there are one main pipeline 1, supervisors
Road front end is equipped with proportionality combusting device 2, and the middle part of main pipeline is equipped with U-shaped heating tube 13, the first Tube Heat Exchanger 3, second successively
Tube Heat Exchanger 8, curing oven hot-air mouth 11, water- to-water heat exchanger 12, the connection of first Tube Heat Exchanger one end can be passed through exhaust gas
Exhaust outlet 4, the both ends of the second Tube Heat Exchanger connect workshop air entrance 9, change painting and thermal purging exhaust outlet 10 respectively.First
Tube Heat Exchanger 3, the second Tube Heat Exchanger 8 are U-typed.Main pipeline rear end is connected with frequency control exhaust gas fan 6, frequency conversion
The outlet connection exhaust outlet 7 of speed governing exhaust gas fan.U-shaped heating tube 13 connects proportionality combusting device 2 by two-way flue gas leading 5.Such as figure
2, the inner wall of U-shaped heating tube 13 is equipped with several fins 14, and for fin arrangement into S-shaped, fin is triangle.Such as Fig. 3, two-way exhaust gas
The inner wall of pipe 5 is equipped with several fins 15, and fin is towards one end of proportionality combusting device 2 to one end towards U-shaped heating tube 13
Height gradually increase.The upper surface of fin 15 is equipped with several guide pads 1）, guide pad for fin top cutting after be bent outwardly and
Into.
A kind of application method using organic solvent prepainted waste gas incinerator system, step are：It first will be solid through exhaust fan
Change the exhaust gas containing organic solvent in stove and be sent into 750 DEG C of Pintsch process burnings of the progress of proportionality combusting device 2.Burn the heat smoke generated
300 DEG C or so of the organic exhaust gas extracted out in stove by the way that pipe in pipe is increased to be heating and curing is to 680 DEG C or so and two-way feeding
Proportionality combusting device；Workshop air is passed through from workshop air entrance 9, being heated to 500 DEG C or so by the second Tube Heat Exchanger 8 send
To pre-treatment, change applies, the processes such as cold carry out thermal purging to steel plate by force；Fresh air is heated to by curing oven hot-air mouth 11
650 DEG C or so the steel plate strips being sent into after curing oven baking japanning；Pretreatment cleaning liquid is heated by water- to-water heat exchanger 12；Residual gas
It is discharged by frequency control exhaust gas fan 6 from exhaust outlet 7.
Structure feature the foregoing is merely specific embodiments of the present invention, but the present invention is not limited thereto, Ren Heben
The technical staff in field in the field of the invention, all cover among the scope of the claims of the present invention by the variation or modification made.
Claims (4)
1. a kind of organic solvent prepainted waste gas incinerator system, including there are one main pipelines（1）, it is characterised in that the supervisor
Road（1）Front end is equipped with proportionality combusting device（2）, the middle part of main pipeline is equipped with U-shaped heating tube successively（13）, the first Tube Heat Exchanger
（3）, the second Tube Heat Exchanger（8）, curing oven hot-air mouth（11）, water- to-water heat exchanger（12）, first Tube Heat Exchanger one end connects
The exhaust outlet of exhaust gas can be passed through by connecing（4）, the both ends of the second Tube Heat Exchanger connect workshop air entrance respectively（9）, change apply and
Thermal purging exhaust outlet（10）, main pipeline（1）Rear end is connected with frequency control exhaust gas fan（6）, frequency control exhaust gas fan goes out
Mouth connection exhaust outlet（7）, U-shaped heating tube（13）Pass through two-way flue gas leading（5）Connect proportionality combusting device（2）, two-way flue gas leading（5）
Inner wall be equipped with several fins（15）, fin is towards proportionality combusting device（2）One end to towards U-shaped heating tube（13）One end
Height gradually increase, the application method of the burned waste gas furnace system includes：To first have in curing oven through exhaust fan
The exhaust gas of solvent is sent into proportionality combusting device（2）700-800 DEG C of Pintsch process burning is carried out, the heat smoke for generation of burning passes through U
Type heating tube（13）Interior 250-350 DEG C of the organic exhaust gas extracted out of the stove that is heating and curing is to 600-750 DEG C and two-way feeding ratio is fired
Burner；From workshop air entrance（9）Workshop air is passed through, passes through the second Tube Heat Exchanger（8）Be heated to 450-550 DEG C send to
Pre-treatment changes painting, strong cooling working procedure to steel plate progress thermal purging；Pass through curing oven hot-air mouth（11）Fresh air is heated to 600-
700 DEG C of steel plate strips being sent into after curing oven baking japanning；Pass through water- to-water heat exchanger（12）Heat pretreatment cleaning liquid；Residual gas by
Frequency control exhaust gas fan（6）From exhaust outlet（7）Discharge.
2. organic solvent prepainted waste gas incinerator system according to claim 1, it is characterised in that first tubulation
Heat exchanger（3）, the second Tube Heat Exchanger（8）For U-typed.
3. organic solvent prepainted waste gas incinerator system according to claim 1 or 2, it is characterised in that it is described U-shaped plus
Heat pipe（13）Inner wall be equipped with several fins（14）, for fin arrangement into S-shaped, fin is triangle.
4. organic solvent prepainted waste gas incinerator system according to claim 1 or 2, it is characterised in that the fin
（15）Upper surface be equipped with several guide pads（16）, guide pad is is bent outwardly after the cutting of fin top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610346655.3A CN106016306B (en) | 2016-05-24 | 2016-05-24 | Organic solvent prepainted waste gas incinerator system and its application method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610346655.3A CN106016306B (en) | 2016-05-24 | 2016-05-24 | Organic solvent prepainted waste gas incinerator system and its application method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106016306A CN106016306A (en) | 2016-10-12 |
| CN106016306B true CN106016306B (en) | 2018-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610346655.3A Active CN106016306B (en) | 2016-05-24 | 2016-05-24 | Organic solvent prepainted waste gas incinerator system and its application method |
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| Country | Link |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106765212A (en) * | 2016-12-19 | 2017-05-31 | 洛阳明远石化技术有限公司 | Tail gas burning process, tail gas burning facility and tail gas burning furnace |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1711340A (en) * | 2002-11-15 | 2005-12-21 | 株式会社久保田 | Cracking tube with spiral fin |
| KR100823081B1 (en) * | 2007-03-23 | 2008-04-18 | 한영무 | Incinerator using heat accumulating member |
| CN201141587Y (en) * | 2007-12-14 | 2008-10-29 | 江苏宏图洁环保工程设备有限公司 | Oxirane special heating stove for waste gas burning and warming vapour |
| CN101539298A (en) * | 2009-05-11 | 2009-09-23 | 福建凯景钢铁开发有限公司 | Exhaust gas treatment method and incinerator used for steel plate color-coating line |
| JP2010032178A (en) * | 2008-07-31 | 2010-02-12 | Toyobo Co Ltd | Organic solvent containing gas treatment system |
| CN201621710U (en) * | 2010-02-23 | 2010-11-03 | 浙江华东轻钢建材有限公司 | Organic solvent prepainted waste gas incinerator |
-
2016
- 2016-05-24 CN CN201610346655.3A patent/CN106016306B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1711340A (en) * | 2002-11-15 | 2005-12-21 | 株式会社久保田 | Cracking tube with spiral fin |
| KR100823081B1 (en) * | 2007-03-23 | 2008-04-18 | 한영무 | Incinerator using heat accumulating member |
| CN201141587Y (en) * | 2007-12-14 | 2008-10-29 | 江苏宏图洁环保工程设备有限公司 | Oxirane special heating stove for waste gas burning and warming vapour |
| JP2010032178A (en) * | 2008-07-31 | 2010-02-12 | Toyobo Co Ltd | Organic solvent containing gas treatment system |
| CN101539298A (en) * | 2009-05-11 | 2009-09-23 | 福建凯景钢铁开发有限公司 | Exhaust gas treatment method and incinerator used for steel plate color-coating line |
| CN201621710U (en) * | 2010-02-23 | 2010-11-03 | 浙江华东轻钢建材有限公司 | Organic solvent prepainted waste gas incinerator |
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| Publication number | Publication date |
|---|---|
| CN106016306A (en) | 2016-10-12 |
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Address after: 311261, Dashi village, Dai Town, Xiaoshan District, Zhejiang, Hangzhou Applicant after: Zhejiang PRINTRONICS Patel Coating Technology Co.,Ltd. Address before: 311261, Dashi village, Dai Town, Xiaoshan District, Zhejiang, Hangzhou Applicant before: HANGZHOU P.R.P.T. METAL MATERIAL CO.,LTD. |
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Effective date of registration: 20220129 Address after: 311200 No. 1, Lingxi Road, daicun Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou grorui building materials Co.,Ltd. Address before: 311261 Dashi Gai village, Dashun Town, Xiaoshan District, Hangzhou, Zhejiang Patentee before: Zhejiang PRINTRONICS Patel Coating Technology Co.,Ltd. |
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Effective date of registration: 20220802 Address after: 312000 Yuebei Road, Ma'an Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG HUAPU ENVIRONMENTAL PROTECTION MATERIAL Co.,Ltd. Address before: 311200 No. 1, Lingxi Road, daicun Town, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: Hangzhou grorui building materials Co.,Ltd. |
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Address after: 312000 Yuebei Road, Ma'an Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee after: Zhejiang Huapu New Materials Co.,Ltd. Address before: 312000 Yuebei Road, Ma'an Town, Keqiao District, Shaoxing City, Zhejiang Province Patentee before: ZHEJIANG HUAPU ENVIRONMENTAL PROTECTION MATERIAL Co.,Ltd. |
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