CN102329116A - Light-weight wallboard manufactured by utilizing sludge from pond and manufacturing method thereof - Google Patents
Light-weight wallboard manufactured by utilizing sludge from pond and manufacturing method thereof Download PDFInfo
- Publication number
- CN102329116A CN102329116A CN201110167717A CN201110167717A CN102329116A CN 102329116 A CN102329116 A CN 102329116A CN 201110167717 A CN201110167717 A CN 201110167717A CN 201110167717 A CN201110167717 A CN 201110167717A CN 102329116 A CN102329116 A CN 102329116A
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- Prior art keywords
- parts
- pond mud
- light
- light trabs
- weight
- 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
Links
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 22
- 239000010802 sludge Substances 0.000 title abstract 5
- 239000000843 powder Substances 0.000 claims abstract description 32
- 239000002699 waste material Substances 0.000 claims abstract description 28
- 239000004568 cement Substances 0.000 claims abstract description 25
- 239000010433 feldspar Substances 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 16
- 239000004575 stone Substances 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 29
- 239000010881 fly ash Substances 0.000 claims description 27
- 239000002245 particle Substances 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000011398 Portland cement Substances 0.000 claims description 7
- 239000004567 concrete Substances 0.000 claims description 7
- 239000011449 brick Substances 0.000 claims description 6
- 239000010883 coal ash Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 238000005469 granulation Methods 0.000 claims description 6
- 230000003179 granulation Effects 0.000 claims description 6
- 238000012423 maintenance Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000002689 soil Substances 0.000 claims description 4
- 238000007906 compression Methods 0.000 abstract description 13
- 230000006835 compression Effects 0.000 abstract description 13
- 238000010276 construction Methods 0.000 abstract description 7
- 238000003912 environmental pollution Methods 0.000 abstract description 2
- 239000000446 fuel Substances 0.000 abstract 2
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 abstract 1
- 230000036314 physical performance Effects 0.000 abstract 1
- 229940072033 potash Drugs 0.000 abstract 1
- 235000015320 potassium carbonate Nutrition 0.000 abstract 1
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Substances [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000012467 final product Substances 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 239000002920 hazardous waste Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 229920006327 polystyrene foam Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Landscapes
- Curing Cements, Concrete, And Artificial Stone (AREA)
Abstract
The invention belongs to the technical field of light-weight wallboards, and particularly relates to a light-weight wallboard manufactured by utilizing sludge from a pond and a manufacturing method thereof. The light-weight wallboard comprises the following raw materials in part by weight: 30-40 parts of the sludge from the pond, 30-50 parts of construction rubbish, 40-60 parts of potash feldspar powder, 10-40 parts of pulverized fuel ash and 40-60 parts of cement. The sludge from the pond, which is adopted by the light-weight board, is not necessary to be dehydrated and dried and can be directly used; the energy resources are saved; the cost is low; and the production efficiency is high. The light-weight wallboard manufactured by the invention has a small shrinkage ratio, a light weight and high compression strength, wherein the compression strength is up to 60-120 MPa, and the light-weight wallboard has the physical performances and the mechanical performances more excellent than those of a general natural stone. In the invention, lots of the construction rubbish, the sludge from the pond and the pulverized fuel ash are used; a manufactured product has low cost and high economic benefit; not only can waste be changed into valuable articles, but also the environmental pollution is improved favorably; and the light-weight wallboard has obvious economic benefit and social benefit.
Description
Technical field
The invention belongs to the Light trabs technical field, relate in particular to a kind of Light trabs and method of manufacture thereof of utilizing pond mud to make.
Background technology
In order to satisfy the different demands of construction market, materials for walls such as heat-insulation wall plate, sound insulation wallboard, exterior wall wallboard, decorative wall panels have appearred on the market.Country and place and relevant department have all clearly stipulated to classify wallboard as the new wall material kind of emphasis support development.The residing position of wallboard is different, and its starting material constitute, manufacturing technique requirent also is not quite similar, and many kinds, seriation are the needs of development of the situation.
The production aspect of the existing light wall material of present China; Chinese invention patent ZL200610070220.7 has introduced a kind of light wallboard of desulfurated gypsum; It is to be processed by the raw material of following weight part: 100 parts in desulfurated plaster powder, polystyrene foam particles 3-10 part, flyash 30-80 part; Ordinary Portland cement 1-5 part, 8% compositions such as polyvinyl alcohol water solution 1-3 part.
A kind of Light trabs and ME thereof have been introduced in Chinese invention patent application 200810159083.3, comprise that following raw materials by weight percent processes: slag 30%, below the granularity 8MM; Flyash 35% is below the granule diameter 2MM; Building waste 15% is below the granularity 8MM, powder containing quantity is below 10%; Cement: 20%; In addition, add water reducer, hydrophober, accelerating chemicals again; The water that adds said slag, flyash, building waste, cement siccative composition weight summation 17～22% again.
But above Light trabs shrinking percentage is high, ultimate compression strength is poor, and particularly ultimate compression strength does not reach requirement again far away, can not be applied to the demanding occasion of resistance to compression.
Summary of the invention
The objective of the invention is to the deficiency to prior art, and a kind of Light trabs that utilizes pond mud to make is provided, this Light trabs shrinking percentage is little, ultimate compression strength is high.
Another object of the present invention is to provide a kind of method of manufacture of utilizing the Light trabs of pond mud manufacturing, need not pond mud is dewatered and drying treatment, directly use to get final product, production efficiency is high, and cost is low.
The present invention realizes through following technology.
A kind of Light trabs that utilizes pond mud to make, it comprises the raw material of following weight part:
Pond mud 30-40 part
Building waste 30-50 part
Feldspar in powder 40-60 part
Flyash 10-40 part
Pearlstone 10-40 part
Cement 40-60 part.
Preferably, it comprises the raw material of following weight part:
Pond mud 30-40 part
Building waste 30-40 part
Feldspar in powder 40-50 part
Flyash 10-30 part
Pearlstone 10-30 part
Cement 40-50 part.
More preferred, it comprises the raw material of following weight part:
30 parts in pond mud
35 parts of building wastes
45 parts of feldspars in powder
20 parts in flyash
15 parts of pearlstones
45 parts of cement.
Wherein, said building waste be brick, watt, in stone, soil and the concrete blocks one or more mix by arbitrary proportion.
Wherein, the particle diameter of said feldspar in powder is below 100 orders.
Wherein, said flyash is the desulfurized powder coal ash.
Wherein, said cement is ordinary Portland cement.
A kind of method of manufacture of utilizing the Light trabs of pond mud manufacturing, it may further comprise the steps:
A, the building waste of above-mentioned formula ratio is crushed to below 200 orders, mixes the back granulation,, obtain roasting particle after the cooling at 1150-1500 ℃ of roasting 20-120 minute with pond mud, the feldspar in powder of above-mentioned formula ratio;
B, the roasting particle that step a is obtained and cement, flyash and the pearlstone of above-mentioned formula ratio stir in stirrer, obtain mixture;
The water that c, adding account for step b mixture 5%-20% weight percent continues to be stirred to evenly, obtains mixture for use;
D, the mixture for use that step c is obtained add moulding in the model, the demoulding and maintenance, obtain a kind of Light trabs that utilizes pond mud to make.
Wherein, also can add a kind of in pigment, river sand or the concrete admixture or any several kinds among the said step b, can add in right amount according to demand.
Beneficial effect of the present invention is:
(1) the pond mud in the raw material contains a large amount of organic compositions; In roasting particle, produce disconnected space; And finally reduce the unit weight of Light trabs; Flyash in the raw material and pearlstone also play the purpose that reduces Light trabs unit weight, and building waste in the raw material and feldspar in powder improve roasting particle intensity, thereby have increased the ultimate compression strength of Light trabs.The Light trabs shrinking percentage that the present invention makes is little, light weight, ultimate compression strength high; Its weight is 1/16 of common brick " 49 " wall weight; Be about 1/2 of new GRC wallboard weight, ultimate compression strength has more good physical and mechanical property up to 60-120MPa than general natural rock;
(2) the present invention uses a large amount of building wastes, pond mud and flyash; The product cost that makes is low; Economic benefit is high, not only can turn waste into wealth, and help improving environmental pollution; Meet innoxious, the minimizing and the resource utilization principle of China's solid waste disposal, have remarkable economic efficiency and social benefit;
(3) the pond mud of the present invention's employing need not to dewater and drying treatment, directly uses to get final product, and saves the energy, and cost is low, and production efficiency is high.The heavy metal that pond of the present invention mud contains is cured through roasting; Heavy metal concentration in the Light trabs product leach liquor is far below " GB5085.3-1996 Hazardous wastes judging standard " and " GB3828-2002 water environment quality standard "; Can not cause secondary pollution, realize innoxious and recycling pond mud to environment.
Embodiment
With specific embodiment the present invention is further described below, but the present invention does not receive the qualification of following embodiment.
Embodiment 1
A kind of Light trabs that utilizes pond mud to make, it comprises the raw material of following weight part: 35 parts in pond mud, 30 parts of building wastes, 40 parts of feldspars in powder, 10 parts in flyash, 10 parts of pearlstones, 40 parts of cement.
Building waste is taken from the construction site, Dongguan, comprises 5 parts of bricks, 20 parts of soil 5 parts and concrete blockss.
Pond mud is taken from pond, suburb, Dongguan.
The particle diameter of feldspar in powder is below 100 orders.
Flyash is the desulfurized powder coal ash.
Cement is ordinary Portland cement.
A kind of method of manufacture of utilizing the Light trabs of pond mud manufacturing, it may further comprise the steps:
A, the building waste of above-mentioned formula ratio is crushed to below 200 orders, mixes the back granulation,, obtain roasting particle after the cooling 1150 ℃ of roastings 20 minutes with pond mud, the feldspar in powder of above-mentioned formula ratio;
B, the roasting particle that step a is obtained and cement, flyash and the pearlstone of above-mentioned formula ratio stir in stirrer, obtain mixture;
The water that c, adding account for step b mixture 5% weight percent continues to be stirred to evenly, obtains mixture for use;
D, the mixture for use that step c is obtained add moulding in the model, the demoulding and maintenance, obtain a kind of Light trabs that utilizes pond mud to make.
Use the prepared Light trabs of technical scheme of present embodiment, ultimate compression strength is 66MPa, and unit weight is 360kg/m
3Drying shrinkage 0.020%.
Embodiment 2
A kind of Light trabs that utilizes pond mud to make, it comprises the raw material of following weight part: 30 parts in pond mud, 50 parts of building wastes, 50 parts of feldspars in powder, 10 parts in flyash, 30 parts of pearlstones, 60 parts of cement.
Pond mud is taken from pond, suburb, Dongguan.
Building waste is taken from construction site, Shenzhen, comprises 5 parts of brick 10 part, watts, 5 parts on stone, 30 parts of concrete blockss.
The particle diameter of feldspar in powder is below 100 orders.
Flyash is the desulfurized powder coal ash.
Cement is ordinary Portland cement.
A kind of method of manufacture of utilizing the Light trabs of pond mud manufacturing, it may further comprise the steps:
A, the building waste of above-mentioned formula ratio is crushed to below 200 orders, mixes the back granulation,, obtain roasting particle after the cooling 1250 ℃ of roastings 40 minutes with pond mud, the feldspar in powder of above-mentioned formula ratio;
B, the roasting particle that step a is obtained and cement, flyash and the pearlstone of above-mentioned formula ratio stir in stirrer, obtain mixture;
The water that c, adding account for step b mixture 15% weight percent continues to be stirred to evenly, obtains mixture for use;
D, the mixture for use that step c is obtained add moulding in the model, the demoulding and maintenance, obtain a kind of Light trabs that utilizes pond mud to make.
Use the prepared Light trabs of technical scheme of present embodiment, ultimate compression strength is 90MPa, and unit weight is 380kg/m
3Drying shrinkage 0.021%.
Embodiment 3
A kind of Light trabs that utilizes pond mud to make, it comprises the raw material of following weight part: 30 parts in pond mud, 35 parts of building wastes, 45 parts of feldspars in powder, 20 parts in flyash, 15 parts of pearlstones, 45 parts of cement.
Pond mud is taken from pond, suburb, Dongguan.
Building waste is taken from the construction site, Guangzhou, comprises 20 parts of 5 parts of bricks, 5 parts on stone, 5 parts in soil and concrete blockss.
The particle diameter of feldspar in powder is below 100 orders.
Flyash is the desulfurized powder coal ash.
Cement is ordinary Portland cement.
A kind of method of manufacture of utilizing the Light trabs of pond mud manufacturing, it may further comprise the steps:
A, the building waste of above-mentioned formula ratio is crushed to below 200 orders, mixes the back granulation,, obtain roasting particle after the cooling 1400 ℃ of roastings 100 minutes with pond mud, the feldspar in powder of above-mentioned formula ratio;
B, the roasting particle that step a is obtained and cement, flyash and the pearlstone of above-mentioned formula ratio stir in stirrer, obtain mixture;
The water that c, adding account for step b mixture 18% weight percent continues to be stirred to evenly, obtains mixture for use;
D, the mixture for use that step c is obtained add moulding in the model, the demoulding and maintenance, obtain a kind of Light trabs that utilizes pond mud to make.
Use the prepared Light trabs of technical scheme of present embodiment, ultimate compression strength is 120MPa, and unit weight is 370kg/m
3Drying shrinkage 0.018%.
Embodiment 4
A kind of Light trabs that utilizes pond mud to make, it comprises the raw material of following weight part: 40 parts in pond mud, 30 parts of building wastes, 60 parts of feldspars in powder, 40 parts in flyash, 40 parts of pearlstones, 40 parts of cement.
Building waste is taken from the construction site, Dongguan, comprises 30 parts of concrete blockss.
Pond mud is taken from pond, suburb, Dongguan.
The particle diameter of feldspar in powder is below 100 orders.
Flyash is the desulfurized powder coal ash.
Cement is ordinary Portland cement.
A kind of method of manufacture of utilizing the Light trabs of pond mud manufacturing, it may further comprise the steps:
A, the building waste of above-mentioned formula ratio is crushed to below 200 orders, mixes the back granulation,, obtain roasting particle after the cooling 1500 ℃ of roastings 120 minutes with pond mud, the feldspar in powder of above-mentioned formula ratio;
B, the roasting particle that step a is obtained and cement, flyash and the pearlstone of above-mentioned formula ratio stir in stirrer, obtain mixture;
The water that c, adding account for step b mixture 20% weight percent continues to be stirred to evenly, obtains mixture for use;
D, the mixture for use that step c is obtained add moulding in the model, the demoulding and maintenance, obtain a kind of Light trabs that utilizes pond mud to make.
Use the prepared Light trabs of technical scheme of present embodiment, ultimate compression strength is 100MPa, and unit weight is 360kg/m
3Drying shrinkage 0.021%.
The above embodiment; It is preferred embodiments of the present invention; Be not to limit practical range of the present invention,, all should comprise in the patent claim of the present invention so all equivalences of doing according to the described structure of claim of the present invention, characteristic and principle change or modify.
Claims (8)
1. Light trabs that utilizes pond mud to make, it is characterized in that: it comprises the raw material of following weight part:
Pond mud 30-40 part
Building waste 30-50 part
Feldspar in powder 40-60 part
Flyash 10-40 part
Pearlstone 10-40 part
Cement 40-60 part.
2. a kind of Light trabs that utilizes pond mud to make according to claim 1, it is characterized in that: it comprises the raw material of following weight part:
Pond mud 30-40 part
Building waste 30-40 part
Feldspar in powder 40-50 part
Flyash 10-30 part
Pearlstone 10-30 part
Cement 40-50 part.
3. a kind of Light trabs that utilizes pond mud to make according to claim 2, it is characterized in that: it comprises the raw material of following weight part:
30 parts in pond mud
35 parts of building wastes
45 parts of feldspars in powder
20 parts in flyash
15 parts of pearlstones
45 parts of cement.
4. according to any described a kind of Light trabs that utilizes pond mud to make of claim 1-3, it is characterized in that: said building waste be brick, watt, in stone, soil and the concrete blocks one or more mix by arbitrary proportion.
5. according to any described a kind of Light trabs that utilizes pond mud to make of claim 1-3, it is characterized in that: the particle diameter of said feldspar in powder is below 100 orders.
6. according to any described a kind of Light trabs that utilizes pond mud to make of claim 1-3, it is characterized in that: said flyash is the desulfurized powder coal ash.
7. according to any described a kind of Light trabs that utilizes pond mud to make of claim 1-3, it is characterized in that: said cement is ordinary Portland cement.
8. any described a kind of method of manufacture of utilizing the Light trabs that pond mud makes of claim 1-3, it is characterized in that: it may further comprise the steps:
A, the building waste of above-mentioned formula ratio is crushed to below 200 orders, mixes the back granulation,, obtain roasting particle after the cooling at 1150-1500 ℃ of roasting 20-120 minute with pond mud, the feldspar in powder of above-mentioned formula ratio;
B, the roasting particle that step a is obtained and cement, flyash and the pearlstone of above-mentioned formula ratio stir in stirrer, obtain mixture;
The water that c, adding account for step b mixture 5%-20% weight percent continues to be stirred to evenly, obtains mixture for use;
D, the mixture for use that step c is obtained add moulding in the model, the demoulding and maintenance, obtain a kind of Light trabs that utilizes pond mud to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101677171A CN102329116B (en) | 2011-06-21 | 2011-06-21 | Light-weight wallboard manufactured by utilizing sludge from pond and manufacturing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101677171A CN102329116B (en) | 2011-06-21 | 2011-06-21 | Light-weight wallboard manufactured by utilizing sludge from pond and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102329116A true CN102329116A (en) | 2012-01-25 |
| CN102329116B CN102329116B (en) | 2013-06-19 |
Family
ID=45481108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101677171A Expired - Fee Related CN102329116B (en) | 2011-06-21 | 2011-06-21 | Light-weight wallboard manufactured by utilizing sludge from pond and manufacturing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102329116B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098302A (en) * | 2014-06-18 | 2014-10-15 | 池州市新科建材有限公司 | Deinsectization light partition wall plate and manufacturing method thereof |
| CN108002756A (en) * | 2017-12-01 | 2018-05-08 | 界首市森威保温建材有限公司 | Environmentally protective fireproof and waterproof light building materials preparation method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107539A (en) * | 1994-02-24 | 1995-08-30 | 周丙辉 | Light porous composite wall partition |
| CN101519292A (en) * | 2009-01-15 | 2009-09-02 | 梁林华 | Grey brick mechanically manufactured from lime sludge and construction wastes and method for manufacturing same |
-
2011
- 2011-06-21 CN CN2011101677171A patent/CN102329116B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1107539A (en) * | 1994-02-24 | 1995-08-30 | 周丙辉 | Light porous composite wall partition |
| CN101519292A (en) * | 2009-01-15 | 2009-09-02 | 梁林华 | Grey brick mechanically manufactured from lime sludge and construction wastes and method for manufacturing same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104098302A (en) * | 2014-06-18 | 2014-10-15 | 池州市新科建材有限公司 | Deinsectization light partition wall plate and manufacturing method thereof |
| CN104098302B (en) * | 2014-06-18 | 2016-01-20 | 池州市新科建材有限公司 | A kind of deinsectization light cellular partition board and preparation method thereof |
| CN108002756A (en) * | 2017-12-01 | 2018-05-08 | 界首市森威保温建材有限公司 | Environmentally protective fireproof and waterproof light building materials preparation method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102329116B (en) | 2013-06-19 |
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Owner name: GUANGDONG YUANSHENG ECOLOGICAL ENVIRONMENTAL PROTE Free format text: FORMER OWNER: DONGGUAN BAOYUANDA REAL ESTATE DEVELOPMENT CO.,LTD. Effective date: 20140509 |
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Effective date of registration: 20140509 Address after: Hong Mei Zhen Hong Wu Wo Cun 523000 Guangdong city of Dongguan Province Patentee after: GUANGDONG YUANSHENG ECOLOGICAL ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: 523000 Guangdong city of Dongguan Province Hong Mei Town Yingbin Road No. three West Dongguan Bao source of Real Estate Development Company Limited Patentee before: Dongguan Baoyuanda Real Estate Development Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |
Address after: Hong Mei Zhen Hong Wu Wo Cun 523000 Guangdong city of Dongguan Province Patentee after: Guangdong spring ecological science and Technology Group Co.,Ltd. Address before: Hong Mei Zhen Hong Wu Wo Cun 523000 Guangdong city of Dongguan Province Patentee before: GUANGDONG YUANSHENG ECOLOGICAL ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |
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Granted publication date: 20130619 |