CN202440405U - Livestock dirt integrated treatment device - Google Patents
Livestock dirt integrated treatment device Download PDFInfo
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- CN202440405U CN202440405U CN2012200084658U CN201220008465U CN202440405U CN 202440405 U CN202440405 U CN 202440405U CN 2012200084658 U CN2012200084658 U CN 2012200084658U CN 201220008465 U CN201220008465 U CN 201220008465U CN 202440405 U CN202440405 U CN 202440405U
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Abstract
The utility model relates to a livestock dirt integrated treatment device. The livestock dirt integrated treatment device comprises a collection tank, an anaerobic tank and an oxygen exposure tank, which are sequentially connected, wherein the oxygen exposure tank is connected with an electrolytic tank. According to the structure, the electrolytic tank is increased at the tail end of an existing solid-liquid separation tank, the anaerobic tank and the oxygen exposure tank, electrolytic treatment is further performed once on the basis of anaerobic and aerobic treatment of liquid muck, and after the electrolytic tank is increased, the content of CODcr (chemical oxygen demand), BOD5 (biochemical oxygen demand 5) and SS (somatostatin) in liquid muck can be greatly reduced by electrolysis; simultaneously, heavy metal ions in the liquid muck can be eliminated through the electrolytic tank, ecological pollution caused by heavy metal substances during emission after purification or recycling can be avoided, and the purification effect of the liquid muck can be further upgraded; and in addition, ozone generated in the electrolytic tank can kill Escherichia coli and other bacteria in the liquid muck, and the purification effect of the liquid muck can be further upgraded.
Description
Technical field
The utility model relates to a kind of waste disposal plant, particularly a kind of poultry dirt one treatment unit.
Background technology
In livestock breeding industry, drain the dirt and the waste water that produce by animals such as pig, ox, birds and belong to high concentration organic sewage, big characteristics that it has the organic concentration height, suspended substance is many and the water yield fluctuates.If these wastes are concentrated discharging or are dealt with improperly, not only cause a large amount of losses of available stock, reduce economic benefit, and bring havoc to agroecological environment.
Prior art is handled the dirty method of excrement; Normally adopt processes such as filtration, deposition, solid-liquid separation, biochemical treatment successively; Final COD (CODcr), biochemical oxygen demand (BOD5), suspended substance (SS), ammonia nitrogen (NH3-N) equal size that reduces in the sewage is to reach " livestock and poultry breeding industry pollutant emission standard " (GB18596-2001) specified standards.
See also in the first phase in 2007 " Chinese milk cow " 49～51 pages; " the simple and easy technology of stock-farms WWT is probed into " literary composition; The article numbering: 1004-4264 (2007) 01-0049-03, a kind of processing solid-liquid separation process sewage is later on disclosed, adopt anaerobic treatment method, oxygen consumption oxygen facture; And waterplant pool handling procedure; Through plash, solid-liquid separation tank, hydrolysis acidification pool, anaerobic pond, aeration tank and the settling tank that matches, the waterplant pool, artificial swamp, make sewage purified preferably, particular case is following:
A, at first carry out solid-liquid separation and handle through plash, solid-liquid separation tank and hydrolysis acidification pool;
Realize that filtration, deposition and solid-liquid separation, the CODcr in the dirt can remove 60%, BOD5 can remove 50%, SS can remove 60%;
B, carry out anaerobic treatment through anaerobic pond;
In anaerobic pond, the organism generation chemical reaction in the sewage generates gases such as NH3-N, H2, CO, and after desulfurization etc. is handled as energy utilization.
C, carry out aerobic treatment through the aeration tank;
In the oxygen pond of exposing to the sun, carrying out oxygenation handles; Sewage is fully contacted with air; Increase the dissolved oxygen amount in the water; The organism that does not have to decompose at upper level is further decomposed in aerobic environment, further promote the abundant oxidation of the sewage behind the anaerobically fermenting, and impel aerobic microbiological further to consume CODcr, BOD5 and SS in the sewage.
D, carry out post-processed through the waterplant pool, artificial swamp etc.;
Plant itself can absorb the nutritive substance in the sewage; This can make sewage be purified to a certain extent; The oxygen that plant is made under photosynthesis simultaneously supplies microbial respiratory for sewage oxygenation through root system, and root system micro-flora and enzyme can also be degraded, the mineralising organism.
In addition, SS is trapped in the sewage, makes sewage obviously become clear through water quality behind the waterplant pool.
But still there is following weak point in it:
1, in the sewage after the employing said apparatus is handled, the content of COD, biochemical oxygen demand, suspended substance is still higher, though can satisfy emission standard, but still be not enough to satisfy the demand of recycling;
2, owing in the livestock industry, contain heavy metal contaminants such as Cu, Zn in the additive of animal feed, the sewage after said apparatus is handled still contains more heavy metal contaminants;
3, the sewage after the employing said apparatus is handled, the content of intestinal bacteria and other bacteriums is still higher, enters river or occurring in nature and can cause pollution of waterhead, forms pestilence easily.
4, the solid dirt after solid-liquid separation and the anaerobic treatment owing to lack drying plant, fuel cost height, directly discharges the solid excrement material that originally can dry as waste material usually, and utilization ratio is lower.
The utility model content
The technical problem that the utility model will solve is to overcome the above-mentioned deficiency of prior art, and a kind of good purification, poultry dirt one treatment unit that pollutant load is few are provided.
For solving the problems of the technologies described above, the utility model provides following technical scheme:
A kind of poultry dirt one treatment unit comprises anaerobic pond, and said anaerobic pond connects electrolyzer, and said electrolyzer is connected with at least one settling bowl.
Adopt such structure; Tail end at existing anaerobic pond increases electrolyzer, makes the dirt of liquid excrement through on the basis of anaerobic treatment, carries out once electrolytic again and handles; After setting up electrolyzer, not only can significantly reduce the content of CODcr, BOD5 and SS in the dirt of liquid excrement through electrolysis; Simultaneously, the dirt of liquid excrement can be eliminated heavy metal ion wherein through electrolyzer, and heavy metal substance polluted ecology when discharging or recovery were used after avoiding purifying, thereby further promotes the dirty decontamination effect improving of liquid excrement; In addition, the ozone that in electrolyzer, produces can be killed intestinal bacteria and other bacteriums in the dirt of liquid excrement, thereby further promotes the dirty decontamination effect improving of liquid excrement.
Preferably, be provided with electrolyzer in the said electrolyzer, said electrolyzer comprises negative electrode, positive electrode and power supply, and said negative electrode is communicated to the negative pole of power supply, and said positive electrode is communicated to the positive pole of power supply.Adopt such structure, carries out electrolysis through pole plate in the electrolyzer, have electrolytic efficiency height, beneficial effect that cost is low.
Preferably, be provided with micro-electrolysis device in the said electrolyzer.Adopt micro-electrolysis device to carry out little electrolysis treatment, not only can carry out electrolysis treatment, simultaneously, compare, saved power unit, not only can save arrangement space, also have energy-conservation beneficial effect with the electrolyzer of power supply, pole plate to the dirt of liquid excrement.
Preferably, said micro-electrolysis device is a micro-electrolysis stuffing, and said micro-electrolysis stuffing is arranged on electrolyzer inside.Adopt micro-electrolysis stuffing to carry out little electrolysis, directly input can be used, and has use, beneficial effect easy to assembly.
Preferably, said micro-electrolysis stuffing is filled with in electrolyzer inner.Adopt such structure, have the beneficial effect that treatment effect is stable, current density is big, functioning efficiency is high.
Preferably, also be provided with ultraviolet sterilization apparatus in the said electrolyzer.Adopt such structure; The ultraviolet photon energy that utilizes ultraviolet sterilization apparatus to send; Make in the dirt of liquid excrement and morph such as the genetic material in the bacteriums such as intestinal bacteria; Reach germ-resistant purpose, reduced the bacteria content in the dirt of liquid excrement, lifting water quality has also been avoided the dirty exhaust emission water source of liquid excrement and even has been caused pestilence.
Preferably; Said ultraviolet sterilization apparatus comprises a plurality of quartz glass sleeves; In said each quartz glass sleeve quartz burner is housed all, said a plurality of quartz glass sleeves are the array arrangement structure, and the distance between per two of the said quartz glass sleeve is 50mm.Utilize the energy of ultraviolet photon; Make in the dirt of liquid excrement and morph such as the genetic material in the bacteriums such as intestinal bacteria; Reach germ-resistant purpose, reduced the bacteria content in the dirt of liquid excrement, lifting water quality has also been avoided the dirty exhaust emission water source of liquid excrement and even has been caused pestilence.Through a plurality of quartz glass sleeves are set, quartz burner is housed in the quartz glass sleeve, the ultraviolet penetration coefficient of silica glass is greater than 87%; Can improve the ultraviolet radiation for sterilizing and disinfecting effect greatly; A plurality of quartz glass sleeves are the array arrangement structure, and the distance between per two of the said quartz glass sleeve is 50mm, and this structure makes water (flow) direction vertical with the quartz glass sleeve direction; Water can fully contact with ultraviolet ray; Strengthen sterilization effect, can kill 99% bacterium and virus, sterilizing rate can reach 99%.
Preferably, said quartz burner is the quartz burner that ultraviolet wavelength is positioned at the UVC wave band.UVC band ultraviolet sterilization effect is good, can destroy and change the structure of mikrobe deoxyribose nucleic acid and ribonucleic, makes bacterium, virus forfeiture viability and reproductivity and then eliminating bacteria, virus, reaches sterilization effect.
Preferably, said poultry dirt one treatment unit also comprises sludge sump, said sludge sump and electrolyzer bottom, and each settling bowl bottom be connected, said sludge sump is connected with fluidized-bed, the gas supply pipe of said fluidized-bed is communicated with anaerobic pond.Adopt such structure; Make the higher solid excrement of water ratio dirty dry; Have and be convenient to the beneficial effect that packs, transport, simultaneously, utilize the inflammable gas that produces in the anaerobic pond as the dirty fuel of fluidized-bed oven dry solid excrement; Not only solved the dirty problem of directly discharging of solid excrement owing to fuel cost is high; Also can solve the problem that a large amount of inflammable gass are difficult to store in the anaerobic pond, both the dirty oven dry of solid excrement was used as fertilizer, has improved the dirty utilization ratio of solid excrement, and the solid excrement dirt after the oven dry pack more easily, transports; And make inflammable gas in the anaerobic pond discharged timely and utilize, reduced and hoarded required container of inflammable gas and space.
Preferably, said poultry dirt one treatment unit also comprises filter-pressing device, and said filter-pressing device is communicated with the bottom of anaerobic pond, the bottom of electrolyzer and the bottom of each settling bowl.Adopt such structure, be convenient to the dirty compression of solid excrement, recycle.
Compared with prior art; The beneficial effect of the utility model is: the tail end at existing anaerobic pond increases electrolyzer; Make the dirt of liquid excrement on the process basis of anaerobic treatment; Carry out once electrolytic again and handle, set up electrolyzer after, not only can significantly reduce the content of CODcr, BOD5 and SS in the dirt of liquid excrement through electrolysis; Simultaneously, the dirt of liquid excrement can be eliminated heavy metal ion wherein through electrolyzer, and heavy metal substance polluted ecology when discharging or recovery were used after avoiding purifying, thereby further promotes the dirty decontamination effect improving of liquid excrement; In addition, the ozone that in electrolyzer, produces can be killed intestinal bacteria and other bacteriums in the dirt of liquid excrement, thereby further promotes the dirty decontamination effect improving of liquid excrement.
Description of drawings
Fig. 1 is the structural representation of the utility model;
Fig. 2 is the workflow synoptic diagram of the utility model.
Mark among the figure: anaerobic pond-1; Electrolyzer-2; Settling bowl-3; First settling bowl-3a; Second settling bowl-3b; Sludge sump-4; Fluidized-bed-5.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
The embodiment of the utility model is not limited to following examples, all belongs within the protection domain of the utility model in the various variations of making under the prerequisite that does not break away from the utility model aim.
As depicted in figs. 1 and 2, present embodiment poultry dirt one treatment unit comprises anaerobic pond 1, and anaerobic pond 1 connects electrolyzer 2, and electrolyzer 2 is connected with a settling bowl 3, and settling bowl 3 is between electrolyzer and anaerobic pond.
Be provided with electrolyzer in the electrolyzer 2, this electrolyzer comprises negative electrode, positive electrode and power supply, and negative electrode is communicated to the negative pole of power supply, and positive electrode is communicated to the positive pole of power supply, and negative electrode and positive electrode are separately positioned on the both sides of electrolyzer 2 inside.
After through pipeline above-mentioned anaerobic pond 1, electrolyzer 2 and settling bowl 3 being communicated with, handle via following steps.
A, with the solid excrement dirts of livestock and poultry with the liquid excrement is dirty carries out preliminary solid-liquid separation after collecting; And enter in the anaerobic pond 1, carry out anaerobic treatment; Before anaerobic treatment, can carry out pre-treatment through technologies such as screen filtration and acidications.COD in the liquid excrement dirt after the solid-liquid separation
Cr, BOD
5High with the content of SS, through anaerobic treatment, remove COD
Cr
D, the dirt of the liquid excrement after anaerobic treatment get in the oxygen pond of exposing to the sun, and carry out aerobic and handle;
In e, the dirty entering of the liquid excrement after aerobic the is handled electrolyzer 2, carry out electrolysis treatment; Before carrying out electrolysis, further carry out solid-liquid separation through settling bowl 3; Electrolysis treatment is carried out in the dirt of 2 pairs of liquid excrement of electrolyzer, is used for the dirty device of electrolyte excrement in the electrolyzer 2 and comprises negative electrode, positive electrode and power supply, and negative electrode is communicated to the negative pole of power supply, and positive electrode is communicated to the positive pole of power supply.Through still containing certain COD in the later liquid excrement dirt of aerobic processing
Cr, BOD
5And SS, input to this moment carries out electrolytic reaction in the electrolyzer 2, further reduce the COD in the dirt of liquid excrement
Cr, BOD
5And SS; Simultaneously, in electrolytic process, produce a large amount of ozone, can be with the killing bacterias such as intestinal bacteria in the dirt of liquid excrement; In addition, in the electrolytic process, the content of the heavy metal ion that contains in the dirt of liquid excrement follows electrolytic process to reduce gradually.
F, the liquid excrement after the electrolysis treatment is dirty, discharging or recycling.
As depicted in figs. 1 and 2, present embodiment poultry dirt one treatment unit comprises anaerobic pond 1, and anaerobic pond 1 connects electrolyzer 2; Electrolyzer 2 is connected with two settling bowls 3; Wherein, the first settling bowl 3a is between electrolyzer and anaerobic pond, and the second electrolyzer 3b is positioned at electrolyzer 2 ends.
Wherein, be provided with micro-electrolysis device in the electrolyzer 2, micro-electrolysis device is a micro-electrolysis stuffing, and micro-electrolysis stuffing is arranged on electrolyzer 2 inside, and micro-electrolysis stuffing is arranged at electrolyzer 2 inside with the mode of filling.
Present embodiment and embodiment 1 difference are that little electrolysis treatment is carried out in the dirt of 2 pairs of liquid excrement of electrolyzer, and being used for the dirty device of little electrolyte excrement in the electrolyzer 2 is micro-electrolysis stuffing, and micro-electrolysis stuffing is arranged at electrolyzer 2 inside.Be employed in the modes of adding micro-electrolysis stuffings in the electrolyzer 2, and compare, need not to establish in addition power supply, and have the beneficial effect that equipment volume is little, floor space is little, be convenient to arrange through the electrolytic mode of battery lead plate.
All the other structures see also embodiment 1.
As depicted in figs. 1 and 2; Also be provided with ultraviolet sterilization apparatus in the electrolyzer 2 in the present embodiment poultry dirt one treatment unit; This ultraviolet sterilization apparatus comprises a plurality of quartz glass sleeves; Quartz burner all is housed in each quartz glass sleeve, and a plurality of quartz glass sleeves are the array arrangement structure, and the distance between per two of the quartz glass sleeve is 50mm.Utilize the energy of ultraviolet photon; Make in the dirt of liquid excrement and morph such as the genetic material in the bacteriums such as intestinal bacteria; Reach germ-resistant purpose, reduced the bacteria content in the dirt of liquid excrement, lifting water quality has also been avoided the dirty exhaust emission water source of liquid excrement and even has been caused pestilence.Through a plurality of quartz glass sleeves are set, quartz burner is housed in the quartz glass sleeve, the ultraviolet penetration coefficient of silica glass is greater than 87%; Can improve the ultraviolet radiation for sterilizing and disinfecting effect greatly; A plurality of quartz glass sleeves are the array arrangement structure, and the distance between per two of the quartz glass sleeve is 50mm, and this structure makes water (flow) direction vertical with the quartz glass sleeve direction; Water can fully contact with ultraviolet ray; Strengthen sterilization effect, can kill 99% bacterium and virus, sterilizing rate can reach 99%.
This quartz burner is the quartz burner that ultraviolet wavelength is positioned at the UVC wave band.UVC band ultraviolet sterilization effect is good, can destroy and change the structure of mikrobe deoxyribose nucleic acid and ribonucleic, makes bacterium, virus forfeiture viability and reproductivity and then eliminating bacteria, virus, reaches sterilization effect.
After electrolysis, the dirt of liquid excrement is proceeded ultra-violet sterilization and is handled, and the device that is used for the ultra-violet sterilization processing is a ultraviolet germicidal lamp; Ultraviolet germicidal lamp is arranged in the electrolyzer 2, adopts the method for ultra-violet sterilization, utilizes the energy of ultraviolet photon; Make in the dirt of liquid excrement and morph such as the genetic material in the bacteriums such as intestinal bacteria; Reach germ-resistant purpose, reduced the bacteria content in the dirt of liquid excrement, lifting water quality has also been avoided the dirty exhaust emission water source of liquid excrement and even has been caused pestilence.
All the other structures see also embodiment 1.
Embodiment 4
As depicted in figs. 1 and 2, also be provided with ultraviolet sterilization apparatus in the electrolyzer 2 in the present embodiment poultry dirt one treatment unit, this ultraviolet sterilization apparatus is a ultraviolet germicidal lamp.
After electrolysis, the dirt of liquid excrement is proceeded ultra-violet sterilization and is handled, and the device that is used for the ultra-violet sterilization processing is a ultraviolet germicidal lamp; Ultraviolet germicidal lamp is arranged in the electrolyzer 2, adopts the method for ultra-violet sterilization, utilizes the energy of ultraviolet photon; Make in the dirt of liquid excrement and morph such as the genetic material in the bacteriums such as intestinal bacteria; Reach germ-resistant purpose, reduced the bacteria content in the dirt of liquid excrement, lifting water quality has also been avoided the dirty exhaust emission water source of liquid excrement and even has been caused pestilence.
All the other structures see also embodiment 2.
As depicted in figs. 1 and 2, present embodiment poultry dirt one treatment unit also comprises sludge sump 4, and the bottom of said sludge sump 4 and electrolyzer 2, the bottom that reaches settling bowl 3 are connected, and sludge sump 4 is connected with fluidized-bed 5, and the gas supply pipe of fluidized-bed 5 is communicated with anaerobic pond 1.
The dirt of liquid excrement produces inflammable gass such as a large amount of biogas when anaerobic treatment, the inflammable gas that this part produces is derived, lighted, and be used for the dirty oven dry of solid excrement, makes the higher solid excrement of water ratio dirty dry, so that pack, transportation.Utilize the fuel of the inflammable gas of generation in the anaerobic pond 1, not only solved the dirty problem of directly discharging of solid excrement, also can solve the problem that a large amount of inflammable gass are difficult to store in the anaerobic pond 1 owing to fuel cost is high as the dirt of oven dry solid excrement; Both the dirty oven dry of solid excrement was used as fertilizer, has improved the dirty utilization ratio of solid excrement, and the solid excrement dirt after the oven dry packs more easily, transports; And make inflammable gas in the anaerobic pond 1 discharged timely and utilize, reduced and hoarded required container of inflammable gas and space.
All the other structures see also embodiment 3.
The utility model is not limited to aforesaid embodiment.The utility model expands to any new feature or any new combination that discloses in this manual, and the arbitrary new method that discloses or step or any new combination of process.
Claims (10)
1. raise dirt one treatment unit for one kind, it is characterized in that: comprise anaerobic pond, said anaerobic pond connects electrolyzer, and said electrolyzer is connected with at least one settling bowl.
2. poultry dirt one treatment unit according to claim 1; It is characterized in that: be provided with electrolyzer in the said electrolyzer; Said electrolyzer comprises negative electrode, positive electrode and power supply, and said negative electrode is communicated to the negative pole of power supply, and said positive electrode is communicated to the positive pole of power supply.
3. poultry dirt one treatment unit according to claim 1 is characterized in that: be micro-electrolysis device in the said electrolyzer.
4. poultry dirt one treatment unit according to claim 3, it is characterized in that: said micro-electrolysis device is a micro-electrolysis stuffing, and said micro-electrolysis stuffing is arranged on electrolyzer inside.
5. poultry dirt one treatment unit according to claim 4 is characterized in that: said micro-electrolysis stuffing is filled with in electrolyzer inner.
6. according to arbitrary described poultry dirt one treatment unit in the claim 1 to 5, it is characterized in that: said electrolyzer is a ultraviolet sterilization apparatus.
7. poultry dirt one treatment unit according to claim 6; It is characterized in that: said ultraviolet sterilization apparatus comprises a plurality of quartz glass sleeves; In said each quartz glass sleeve quartz burner is housed all; Said a plurality of quartz glass sleeve is the array arrangement structure, and the distance between per two of the said quartz glass sleeve is 50mm.
8. poultry dirt one treatment unit according to claim 6; It is characterized in that: said poultry dirt one treatment unit also comprises sludge sump; Said sludge sump and electrolyzer bottom, and the settling bowl bottom be connected; Said sludge sump is connected with fluidized-bed, and the gas supply pipe of said fluidized-bed is communicated with anaerobic pond.
9. poultry dirt one treatment unit according to claim 6 is characterized in that: said poultry dirt one treatment unit also comprises filter-pressing device, and said filter-pressing device is communicated with the bottom of anaerobic pond, the bottom of electrolyzer and the bottom of settling bowl.
10. poultry dirt one treatment unit according to claim 7, it is characterized in that: said quartz burner is the quartz burner that ultraviolet wavelength is positioned at the UVC wave band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200084658U CN202440405U (en) | 2012-01-10 | 2012-01-10 | Livestock dirt integrated treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200084658U CN202440405U (en) | 2012-01-10 | 2012-01-10 | Livestock dirt integrated treatment device |
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| Publication Number | Publication Date |
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| CN202440405U true CN202440405U (en) | 2012-09-19 |
Family
ID=46821859
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200084658U Expired - Fee Related CN202440405U (en) | 2012-01-10 | 2012-01-10 | Livestock dirt integrated treatment device |
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| CN (1) | CN202440405U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106064868A (en) * | 2016-07-29 | 2016-11-02 | 美的集团股份有限公司 | Sewage-treatment plant, sewage water treatment method and bio-toilet |
-
2012
- 2012-01-10 CN CN2012200084658U patent/CN202440405U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106064868A (en) * | 2016-07-29 | 2016-11-02 | 美的集团股份有限公司 | Sewage-treatment plant, sewage water treatment method and bio-toilet |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHENGDU KAIMAI ENVIRONMENTAL PROTECTION TECHNOLOGY Free format text: FORMER OWNER: CHENGDU K + M METALS CO., LTD. Effective date: 20131121 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610500 CHENGDU, SICHUAN PROVINCE TO: 610041 CHENGDU, SICHUAN PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131121 Address after: Wuhou District Frasers road Chengdu city Sichuan province 610041 No. 511 1 4 storey building No. 34 Patentee after: Chengdu Kaimai Environmental Protection Technology Co., Ltd. Address before: 610500 New Industrial Road, Xindu Industrial District, Sichuan, Chengdu Patentee before: Chengdu K & M Metals Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120919 Termination date: 20190110 |
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| CF01 | Termination of patent right due to non-payment of annual fee |