CN104984603A - Air purification device applied in chimney - Google Patents
Air purification device applied in chimney Download PDFInfo
- Publication number
- CN104984603A CN104984603A CN201510444162.9A CN201510444162A CN104984603A CN 104984603 A CN104984603 A CN 104984603A CN 201510444162 A CN201510444162 A CN 201510444162A CN 104984603 A CN104984603 A CN 104984603A
- Authority
- CN
- China
- Prior art keywords
- level board
- fixedly connected
- screen pack
- air
- framework
- 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.)
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Links
- 238000004887 air purification Methods 0.000 title abstract 3
- 238000007664 blowing Methods 0.000 claims abstract description 11
- 238000004140 cleaning Methods 0.000 claims description 21
- 238000009434 installation Methods 0.000 claims description 6
- 238000005452 bending Methods 0.000 claims description 3
- 238000000746 purification Methods 0.000 abstract description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 6
- 239000003546 flue gas Substances 0.000 abstract description 6
- 239000007789 gas Substances 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 5
- 239000000428 dust Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000011109 contamination Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000000505 pernicious effect Effects 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Filtering Of Dispersed Particles In Gases (AREA)
- Filtration Of Liquid (AREA)
Abstract
The invention provides an air purification device applied in a chimney. The device comprises a frame body, an air blowing unit, an air outlet unit, a filter unit and a clamp unit, wherein the frame body is provided with a first through-hole, a second through-hole, a third through-hole, an air inlet pipe and a first filter screen; the air blowing unit comprises an air blowing pipe, a blower and an air blowing hopper; the air outlet unit comprises an air outlet pipe, a purifying box, a support plate and a bracket; the filter unit comprises a triangular block, a second filter screen, a first support rod, a first horizontal plate, a second horizontal plate, a first verticle plate, a third filter screen, a fourth filter screen and a fifth filter screen; and the clamp unit comprises a fixed plate, a clamp plate, a spring, a thread rod and a rotary part, wherein the upper surface of the fixed plate is fixedly connected with the lower surface of the frame body; the clamp plate is of a bend shape; the upper surface of the clamp plate and the lower surface of the frame body are in sliding connection; and the lower surface of the clamp plate is of an inclined shape. The air purification device applied in the chimney has the advantages of high purification efficiency and good purification effect and discharges purified flue gas into air, thereby preventing pollution to the air.
Description
Technical field
The present invention relates to environmental technology field, particularly relate to a kind of air cleaning unit be used on chimney.
Background technology
The flue gas that existing plant produced produces is discharged in air often through chimney, then in flue gas containing a large amount of pernicious gases and solid particle, directly gone out by smoke stack emission and not only severe contamination caused to air, also can the serious threat mankind healthy.
Therefore, need to provide a kind of new technical scheme to solve the problems of the technologies described above.
Summary of the invention
The object of this invention is to provide the air cleaning unit of a kind of use that can effectively solve the problems of the technologies described above on chimney.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
Be used in the air cleaning unit on chimney, described in the air cleaning unit be used on chimney comprise framework, be positioned at the blowning installation above described framework, be positioned at the air-out apparatus of the left and right sides, the filter being positioned at described framework inside and the fastener be positioned at below described framework, described framework is provided with the first through hole being positioned at upper surface, second through hole, be positioned at the third through-hole on lower surface, be positioned at the air inlet pipe of below and be positioned at the first screen pack of described air inlet pipe inside, described blowning installation comprises gas blow pipe, be arranged at the blower fan on described gas blow pipe and be positioned at below air blowing bucket, described air-out apparatus comprises escape pipe, be positioned at the purifying box below described escape pipe, the support being positioned at the gripper shoe below described purifying box and being positioned at below described gripper shoe, described filter comprises corner block, be positioned at the second screen pack above described corner block, first support bar, be positioned at the first level board above described first support bar, be positioned at the second level board above described first level board, starting stave between described first level board and described second level board, be positioned at the 3rd screen pack of described starting stave side, 4th screen pack and the 5th screen pack be positioned at above described second level board, described fastener comprises fixed head, be positioned at the binding on the left of described fixed head, be positioned at the spring on the right side of described binding, the rotating part being arranged at the threaded rod on described fixed head and being positioned on the right side of described threaded rod, described fixed head is cuboid, described fixed head is vertically placed, the upper surface of described fixed head is fixedly connected with the lower surface of described framework, described binding is bending, the upper surface of described binding and the lower surface of described framework are slidably connected, the lower surface of described binding is skewed, one end of described spring is fixedly connected with the side of described fixed head, and the other end of described spring is fixedly connected with the side of described binding.
The upper end of described air inlet pipe is aimed at described third through-hole and is fixedly connected with the lower surface of described framework, and described first screen pack is cylinder, and described first screen pack horizontal positioned, the side of described first screen pack is fixedly connected with the inner surface of described air inlet pipe.
The cross section of described corner block is triangular in shape, and described corner block is fixedly connected with the inner surface of described framework.
Described second screen pack is inverted V-shape, and the described end of the second screen pack is fixedly connected with the upper surface of corner block.
Described first support bar is skewed, and the lower surface of described first support bar is fixedly connected with the upper surface of described corner block, and the upper surface of described first support bar is fixedly connected with the lower surface of described first level board.
Described first level board is cuboid, described first level board horizontal positioned, one side of described first level board is fixedly connected with the inner surface of described framework, described second level board is cuboid, described second level board horizontal positioned, a side of described second level board is fixedly connected with the inner surface of described framework.
Described starting stave is cuboid, and described starting stave is vertically placed, and the lower surface of described starting stave is fixedly connected with the upper surface of described first level board, and the upper surface of described starting stave is fixedly connected with the lower surface of described second level board.
Described 3rd screen pack is provided with two and arranged in a crossed manner, and described 3rd screen pack is skewed, and the end of described 3rd screen pack is fixedly connected with the side of described first level board and the second level board.
After adopting technique scheme, tool of the present invention has the following advantages:
The air cleaning unit that the present invention is used on chimney can be directly installed on chimney, structure is simple, easy to use, and effectively can purify flue gas, purification efficiency is high and effective, and by the fume emission after purification in air, thus can not pollute air, it carries fastener simultaneously, can be fixed and be arranged on chimney, simple to operate.
Accompanying drawing explanation
Be described further below in conjunction with the detailed description of the invention of accompanying drawing to the air cleaning unit that the present invention is used on chimney:
Fig. 1 is the structural representation that the present invention is used in the air cleaning unit on chimney;
Detailed description of the invention
As shown in Figure 1, the present invention's air cleaning unit be used on chimney comprises framework 1, is positioned at the blowning installation 2 above described framework 1, the air-out apparatus 3 being positioned at the left and right sides, the filter 4 being positioned at described framework 1 inside and the fastener 5 be positioned at below described framework 1.
As shown in Figure 1, described framework 1 is in hollow cuboid, and described framework 1 is vertically placed.Described framework 1 be provided be positioned at the first through hole 11, second through hole 12 of upper surface, the third through-hole 13 be positioned on lower surface, be positioned at below air inlet pipe 14 and be positioned at the first screen pack 15 of described air inlet pipe 14 inside.Described first through hole 11 is provided with two and lays respectively at the left and right sides, and described first through hole 11 is in cylindrical shape.Described second through hole 12 is in cylindrical shape, and described second through hole 12 is between described first through hole 11.Described third through-hole 13 is in cylindrical shape.Described air inlet pipe 14 is the main body of annulus in cross section, and the upper end of described air inlet pipe 14 is aimed at described third through-hole 13 and is fixedly connected with the lower surface of described framework 1, and the inside of described air inlet pipe 14 is communicated with the inside of described framework 1.Described first screen pack 15 is in cylinder, and described first screen pack 15 horizontal positioned, the side of described first screen pack 15 is fixedly connected with the inner surface of described air inlet pipe 14, thus tentatively can filter flue gas.
As shown in Figure 1, described blowning installation 2 comprise gas blow pipe 21, be arranged at the blower fan 22 on described gas blow pipe 21 and be positioned at below air blowing bucket 23.Second through hole 12 described in the lower end aligned of described gas blow pipe 21 and being fixedly connected with the upper surface of described framework 1, makes the inside of described escape pipe 21 communicate with the inside of described framework 1.Described blower fan 22 is arranged on described gas blow pipe 21, for by the air intake in the external world in gas blow pipe 21.Described air blowing bucket 23 is in hollow round table-like, and the upper end of described air blowing bucket 23 is aimed at described second through hole 12 and is fixedly connected with the inner surface of described framework 1, and the inside of described gas blow pipe 21 is communicated with the inside of described air blowing bucket 23.
As shown in Figure 1, described air-out apparatus 3 is provided with two and lays respectively at the left and right sides, the support 34 now illustrating for the air-out apparatus being positioned at right side, described air-out apparatus 3 comprises escape pipe 31, be positioned at purifying box 32 below described escape pipe 31, be positioned at the gripper shoe 33 below described purifying box 32 and be positioned at below described gripper shoe 33.Described escape pipe 31 is in concave character type, and one end of described escape pipe 31 is aimed at described first through hole 11 and is fixedly connected with the upper surface of described framework 1, and the other end of described escape pipe 31 straight down.Described gripper shoe 33 is in cuboid, and described gripper shoe 33 horizontal positioned, the left surface of described gripper shoe 33 is fixedly connected with the right surface of described framework 1.Described support 34 is in L-type, described support 34 comprises left part and right part, described left part and described right part one-body molded, described left part is skewed, the left end of described left part is fixedly connected with the right surface of described framework 1, and the upper surface of described right part is fixedly connected with the lower surface of described gripper shoe 33.Described purifying box 32 is in cuboid, the lower surface of described purifying box 32 contacts with the upper surface of described gripper shoe 33, the upper surface of described purifying box 32 is recessed to form purification chamber downwards, described purification chamber is rectangular-shaped, one end of described escape pipe 31 is contained in described purification chamber, be placed with water in described purification chamber, thus can flue gas be out purified.
As shown in Figure 1, described filter 4 the 5th screen pack 49 that comprises corner block 41, the second screen pack 42, first support bar 43 above described corner block 41, the first level board 44 above described first support bar 43, the second level board 45 above described first level board 44, the starting stave 46 between described first level board 44 and described second level board 45, the 3rd screen pack 47 being positioned at described starting stave 46 side, the 4th screen pack 48 and be positioned at above described second level board 45.Described corner block 41 is provided with two and lays respectively at the left and right sides, the cross section of described corner block 41 is triangular in shape, described corner block 41 is fixedly connected with the inner surface of described framework 1, and described corner block 41 can prevent dust deposit on the lower inner surface of described framework 1.Described second screen pack 42 is in inverted V-shape, the two ends of described second screen pack 42 are fixedly connected with the upper surface of the corner block 41 being positioned at the left and right sides respectively, and the design of described second screen pack 42V font can prevent dust deposit on the lower surface of the second screen pack 42.Described first support bar 43 is provided with two and lays respectively at the left and right sides, described first support bar 43 is in skewed, the lower surface of described first support bar 43 is fixedly connected with the upper surface of described corner block 41, the upper surface of described first support bar 43 is fixedly connected with the lower surface of described first level board 44, thus plays good supporting role to described first level board 44.Described first level board 44 is provided with two and lays respectively at the left and right sides, and described first level board 44 is in cuboid, and described first level board 44 horizontal positioned, a side of described first level board 44 is fixedly connected with the inner surface of described framework 1.Described second level board 45 is in cuboid, and described second level board 45 horizontal positioned, a side of described second level board 45 is fixedly connected with the inner surface of described framework 1.Described starting stave 46 is provided with two and lays respectively at the left and right sides, described starting stave 46 is in cuboid, described starting stave 46 is vertically placed, the lower surface of described starting stave 46 is fixedly connected with the upper surface of described first level board 44, the upper surface of described starting stave 46 is fixedly connected with the lower surface of described second level board 45, thus plays good supporting role to described second level board 45.Described 3rd screen pack 47 is provided with two and arranged in a crossed manner, and described 3rd screen pack 47 is in skewed, and the left and right sides of described 3rd screen pack 47 is fixedly connected with the side of the first level board 44 and the second level board 45 that are positioned at the left and right sides respectively.Described 4th screen pack 48 is horizontal, and the side of described 4th screen pack 48 is fixedly connected with the side of described starting stave 46.Described 5th screen pack 49 is provided with two and lays respectively at the left and right sides, described 5th screen pack 49 is in skewed, one end of described 5th screen pack 49 is fixedly connected with the upper surface of described second level board 45, and the other end of described 5th screen pack 49 is fixedly connected with the inner surface of described framework 1.
As shown in Figure 1, described fastener 5 is provided with two and lays respectively at the left and right sides, now to be positioned at the fastener 5 on right side, described fastener 5 comprises fixed head 51, the rotating part 55 that is positioned at binding 52 on the left of described fixed head 51, is positioned at spring 53 on the right side of described binding 52, is arranged at the threaded rod 54 on described fixed head 51 and is positioned on the right side of described threaded rod 54.Described fixed head 51 is in cuboid, and described fixed head 51 is vertically placed, and the upper surface of described fixed head 51 is fixedly connected with the lower surface of described framework 1.Described binding 52 is in bending, and the upper surface of described binding 52 and the lower surface of described framework 1 are slidably connected, and the lower surface of described binding 52 is skewed, thus facilitates chimney to insert.Described spring 53 is provided with two and lays respectively at upper and lower both sides, and one end of described spring 53 is fixedly connected with the side of described fixed head 51, and the other end of described spring 53 is fixedly connected with the side of described binding 52.Described threaded rod 54 is in cylinder, and described threaded rod 54 horizontal positioned, described threaded rod 54 runs through the surface, left and right of described fixed head 51 and is threaded with described fixed head 51, can move left and right when described threaded rod 54 is rotated.Described rotating part 55 is in cylinder, and described rotating part 55 is vertically placed, and the right surface of described threaded rod 54 is fixedly connected with the left surface of described rotating part 55, thus when rotating described rotating part 55, described threaded rod 54 can be moved left and right.
As shown in Figure 1, when described the present invention air cleaning unit be used on chimney uses, first air inlet pipe 14 to be contained in chimney and to be fitted on the inner surface of chimney, then the inner surface of binding 52 is made to be fitted on the outer surface of chimney, then rotating part 55 is rotated, on the outer surface being pressed in described chimney making binding 52 fastening, thus make fastening being arranged on chimney of air cleaning unit.Then the gas in chimney, by entering into escape pipe 31 through the first through hole 11 after the filtration of the first screen pack 15, second screen pack 42, the 3rd screen pack 47, the 4th screen pack 48 and the 5th screen pack 49, is then discharged after the purification of purifying box 32.After purification, start blower fan 22, air blowing bucket 23 pairs of filters 4 are blown, dust is wherein blown off, prevents from being deposited on screen pack.So far, the air cleaning unit use procedure that the present invention is used on chimney is described.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those skilled in the art are in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (8)
1. one kind is used in the air cleaning unit on chimney, it is characterized in that: described in the air cleaning unit be used on chimney comprise framework, be positioned at the blowning installation above described framework, be positioned at the air-out apparatus of the left and right sides, the filter being positioned at described framework inside and the fastener be positioned at below described framework, described framework is provided with the first through hole being positioned at upper surface, second through hole, be positioned at the third through-hole on lower surface, be positioned at the air inlet pipe of below and be positioned at the first screen pack of described air inlet pipe inside, described blowning installation comprises gas blow pipe, be arranged at the blower fan on described gas blow pipe and be positioned at below air blowing bucket, described air-out apparatus comprises escape pipe, be positioned at the purifying box below described escape pipe, the support being positioned at the gripper shoe below described purifying box and being positioned at below described gripper shoe, described filter comprises corner block, be positioned at the second screen pack above described corner block, first support bar, be positioned at the first level board above described first support bar, be positioned at the second level board above described first level board, starting stave between described first level board and described second level board, be positioned at the 3rd screen pack of described starting stave side, 4th screen pack and the 5th screen pack be positioned at above described second level board, described fastener comprises fixed head, be positioned at the binding on the left of described fixed head, be positioned at the spring on the right side of described binding, the rotating part being arranged at the threaded rod on described fixed head and being positioned on the right side of described threaded rod, described fixed head is cuboid, described fixed head is vertically placed, the upper surface of described fixed head is fixedly connected with the lower surface of described framework, described binding is bending, the upper surface of described binding and the lower surface of described framework are slidably connected, the lower surface of described binding is skewed, one end of described spring is fixedly connected with the side of described fixed head, the other end of described spring is fixedly connected with the side of described binding.
2. the air cleaning unit be used on chimney according to claim 1, it is characterized in that: the upper end of described air inlet pipe is aimed at described third through-hole and is fixedly connected with the lower surface of described framework, described first screen pack is cylinder, described first screen pack horizontal positioned, the side of described first screen pack is fixedly connected with the inner surface of described air inlet pipe.
3. the air cleaning unit be used on chimney according to claim 2, it is characterized in that: the cross section of described corner block is triangular in shape, described corner block is fixedly connected with the inner surface of described framework.
4. the air cleaning unit be used on chimney according to claim 3, is characterized in that: described second screen pack is inverted V-shape, and the described end of the second screen pack is fixedly connected with the upper surface of corner block.
5. the air cleaning unit be used on chimney according to claim 4, it is characterized in that: described first support bar is skewed, the lower surface of described first support bar is fixedly connected with the upper surface of described corner block, and the upper surface of described first support bar is fixedly connected with the lower surface of described first level board.
6. the air cleaning unit be used on chimney according to claim 5, it is characterized in that: described first level board is cuboid, described first level board horizontal positioned, one side of described first level board is fixedly connected with the inner surface of described framework, described second level board is cuboid, described second level board horizontal positioned, a side of described second level board is fixedly connected with the inner surface of described framework.
7. the air cleaning unit be used on chimney according to claim 6, it is characterized in that: described starting stave is cuboid, described starting stave is vertically placed, the lower surface of described starting stave is fixedly connected with the upper surface of described first level board, and the upper surface of described starting stave is fixedly connected with the lower surface of described second level board.
8. the air cleaning unit be used on chimney according to claim 7, it is characterized in that: described 3rd screen pack is provided with two and arranged in a crossed manner, described 3rd screen pack is skewed, and the end of described 3rd screen pack is fixedly connected with the side of described first level board and the second level board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510444162.9A CN104984603B (en) | 2015-07-25 | 2015-07-25 | A kind of use air cleaner on chimney |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510444162.9A CN104984603B (en) | 2015-07-25 | 2015-07-25 | A kind of use air cleaner on chimney |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104984603A true CN104984603A (en) | 2015-10-21 |
| CN104984603B CN104984603B (en) | 2016-08-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510444162.9A Expired - Fee Related CN104984603B (en) | 2015-07-25 | 2015-07-25 | A kind of use air cleaner on chimney |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104984603B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105311910A (en) * | 2015-11-08 | 2016-02-10 | 蔡旭东 | Industrial gas purification dust-removal equipment |
| CN109100184A (en) * | 2018-07-26 | 2018-12-28 | 杜瑞青 | It is a kind of to pre-process sampling collector for the underground mine gas containing a large amount of dusts |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172408Y (en) * | 1993-09-11 | 1994-07-20 | 张靖芬 | Chimney fume removing apparatus |
| US20050247244A1 (en) * | 2002-08-16 | 2005-11-10 | So Kim L | Self-cleaning exhaust system and method |
| CN202844778U (en) * | 2012-08-31 | 2013-04-03 | 嘉兴思达木塑科技有限公司 | Dust removal system for chimney |
| CN203916399U (en) * | 2014-06-28 | 2014-11-05 | 宁波中野电器有限公司 | A kind of chimney purification cap |
| CN203927972U (en) * | 2014-06-28 | 2014-11-05 | 宁波中野电器有限公司 | A kind of Chimay purifying device |
| CN204745909U (en) * | 2015-07-25 | 2015-11-11 | 周盈裕 | Air purification device of use on chimney |
-
2015
- 2015-07-25 CN CN201510444162.9A patent/CN104984603B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2172408Y (en) * | 1993-09-11 | 1994-07-20 | 张靖芬 | Chimney fume removing apparatus |
| US20050247244A1 (en) * | 2002-08-16 | 2005-11-10 | So Kim L | Self-cleaning exhaust system and method |
| CN202844778U (en) * | 2012-08-31 | 2013-04-03 | 嘉兴思达木塑科技有限公司 | Dust removal system for chimney |
| CN203916399U (en) * | 2014-06-28 | 2014-11-05 | 宁波中野电器有限公司 | A kind of chimney purification cap |
| CN203927972U (en) * | 2014-06-28 | 2014-11-05 | 宁波中野电器有限公司 | A kind of Chimay purifying device |
| CN204745909U (en) * | 2015-07-25 | 2015-11-11 | 周盈裕 | Air purification device of use on chimney |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105311910A (en) * | 2015-11-08 | 2016-02-10 | 蔡旭东 | Industrial gas purification dust-removal equipment |
| CN105311910B (en) * | 2015-11-08 | 2017-02-01 | 衢州学院 | Industrial gas purification dust-removal equipment |
| CN109100184A (en) * | 2018-07-26 | 2018-12-28 | 杜瑞青 | It is a kind of to pre-process sampling collector for the underground mine gas containing a large amount of dusts |
| CN109100184B (en) * | 2018-07-26 | 2020-11-20 | 嘉兴嘉卫检测科技有限公司 | Underground mine gas pretreatment sampling collector containing a large amount of dust |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104984603B (en) | 2016-08-24 |
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Effective date of registration: 20161227 Address after: 423000 Chenzhou province Hunan City Beihu District No. 7 Jiefang Road Patentee after: Golden Horse advertising decoration Co.,Ltd. of Chenzhou Patentee after: ZHUZHOU ZHI HUI INTELLECTUAL PROPERTY OPERATION SERVICE Co.,Ltd. Address before: Ruian City, Wenzhou city in Zhejiang province 325200 Wang Heng Tang tou Cun Bei Lu Jiankang Street No. 11 Patentee before: Zhou Yingyu |
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Effective date of registration: 20170302 Address after: Ruian City, Wenzhou city in Zhejiang province 325200 Wang Heng Tang tou Cun Bei Lu Jiankang Street No. 11 Patentee after: Zhou Yingyu Address before: 423000 Chenzhou province Hunan City Beihu District No. 7 Jiefang Road Patentee before: Golden Horse advertising decoration Co.,Ltd. of Chenzhou Patentee before: ZHUZHOU ZHI HUI INTELLECTUAL PROPERTY OPERATION SERVICE Co.,Ltd. |
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