CN203683211U - Plug flow device and sewage treatment system for biological reaction tank - Google Patents
Plug flow device and sewage treatment system for biological reaction tank Download PDFInfo
- Publication number
- CN203683211U CN203683211U CN201320884281.2U CN201320884281U CN203683211U CN 203683211 U CN203683211 U CN 203683211U CN 201320884281 U CN201320884281 U CN 201320884281U CN 203683211 U CN203683211 U CN 203683211U
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- Prior art keywords
- reaction tank
- biological reaction
- wall
- conservancy diversion
- water conservancy
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- Expired - Lifetime
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- 238000006243 chemical reaction Methods 0.000 title claims abstract description 56
- 239000010865 sewage Substances 0.000 title claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 96
- 238000005273 aeration Methods 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 13
- 239000011148 porous material Substances 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 12
- 238000012423 maintenance Methods 0.000 abstract description 10
- 238000005265 energy consumption Methods 0.000 abstract description 7
- 238000005276 aerator Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 9
- 238000010992 reflux Methods 0.000 description 7
- 238000007689 inspection Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 244000005700 microbiome Species 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000009189 diving Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 239000010963 304 stainless steel Substances 0.000 description 1
- 229910000589 SAE 304 stainless steel Inorganic materials 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
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- 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
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
Landscapes
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model discloses a plug flow device and a sewage treatment system for a biological reaction tank. The plug flow device for the biological reaction tank comprises a flow guide wall body I, a flow guide wall body II and a gas stripping device, wherein the top end of the flow guide wall body I is higher than that of the flow guide wall body II; the bottom end of the flow guide wall body II is connected with the bottom of the tank; the bottom end of the flow guide wall body I is separated from the bottom of the biological reaction tank; the gas stripping device is fixed between the flow guide wall body I and the flow guide wall body II, and comprises an air diffusing device and a guide device; the air diffusing device comprises a main air supply pipe and an air distributor connected with the main air supply pipe; the air distributor is connected with a plurality of microporous aerator pipes; the guide device comprises a guide slide rail and a guide buckle; the upper end of the guide slide rail is fixed at the top end of the flow guide wall body I, and the lower end of the guide slide rail is fixed on the tank body; the air distributor is connected with the guide slide rail through the guide buckle in a sliding manner. The plug flow device disclosed by the utility model can improve the sewage plug flow effect and reduce the energy consumption during sewage treatment, and is easy in maintenance and replacement.
Description
Technical field
The utility model relates to sewage disposal technology, particularly a kind of plug flow device for biological reaction tank and Sewage treatment systems.
Background technology
Along with social development, the problem of water scarcity is day by day serious, and water will become an important factor of restriction social development.People also more and more pay attention to exploitation and the improvement of water technology.
Bio sewage treating process is one more special in sewage treatment process, is called again activated sludge process.Activated sludge process can be divided into aerobic method and anaerobic process etc.In aerobe Sewage treatment systems, microorganism utilizes the dissolved oxygen in water, and then the organic pollutant in oxidative degradation water carries out the lock out operation of microorganism and water, reaches the object of purifying waste water.
In order to make microorganism flow circuit in aeration tank in aeration tank, enter different reaction tank bodies or there is larger shock-resistant ability, technician all adopts the mode of backflow or plug-flow to realize.And backflow and plug-flow can complete with pump, impeller or air-lift unit, and use pump reflux can only produce less meeting flow, when quantity of reflux is larger, energy consumption is higher.Adopt impeller circulation time, its quantity of reflux is difficult to calculate, and return velocity is too fast and energy consumption is also higher.Adopt air plug-flow can obtain more uniform quantity of reflux, the load of average water inlet, energy consumption is low and reflux even.
In existing air plug-flow technology, air-diffuser adopts perforated pipe, adopts counterweight mode sink or be suspended in water, very difficult when the higher and checking maintenance of energy consumption, there will be the phenomenon of " cannot take out " " putting to enter ", causes inconvenience to practical application.
Utility model content
Goal of the invention of the present utility model is to provide a kind of plug flow device for biological reaction tank, with can be in sewage treatment process lifting sewage plug-flow effect, reduce energy consumption, and be easy to inspection and maintenance.
For achieving the above object, the utility model provides a kind of plug flow device for biological reaction tank, comprise water conservancy diversion body of wall one, water conservancy diversion body of wall two and air-lift device, water conservancy diversion body of wall one top is higher than water conservancy diversion body of wall two tops, at the bottom of the pond of water conservancy diversion body of wall two bottoms and biological reaction tank, be connected, water conservancy diversion body of wall one bottom separates with the bottom of biological reaction tank, described air-lift device is fixed between described water conservancy diversion body of wall one and water conservancy diversion body of wall two, described air-lift device comprises air-diffuser and liner, described air-diffuser comprises main feed pipe and the air distributor being connected with main feed pipe, air distributor connects multiple micropore aeration pipes, described liner comprises directive slide track and guiding latch closure, and the top of water conservancy diversion body of wall one is fixed in described directive slide track upper end, and the Chi Tishang of biological reaction tank is fixed in directive slide track lower end, and air distributor is slidably connected by guiding latch closure and directive slide track.
Further, described water conservancy diversion body of wall two is lower than the liquid level 200-1500mm of biological reaction tank.
Further, the distance between at the bottom of the pond of described water conservancy diversion body of wall one bottom and biological reaction tank is 200-1500mm.
Further, the horizontal throw between described water conservancy diversion body of wall one and water conservancy diversion body of wall two is 500-1500mm.
Further, control valve and ready-packaged joint are equipped with in described main feed pipe upper end, and described main feed pipe is hard steel pipe or plastics tubing.
Further, on every meter of described micropore aeration pipe, offer 2000-10000 micropore, the aperture of described micropore is 0.2-1mm.
Further, described air distributor has 2-12 micro-pore aeration tube stub, and described micro-pore aeration tube stub is located at air distributor both sides or a side, and described air distributor length is 1m-6m.
Further, described directive slide track vertically arranges, and at the bottom of its lower end is fixed on the pond of biological reaction tank.
The utility model also provides a kind of Sewage treatment systems, comprises biological reaction tank, is provided with at least one above-mentioned plug flow device for biological reaction tank in described biological reaction tank, between each described plug flow device for biological reaction tank, is provided with partition wall.
In the technical solution of the utility model, water conservancy diversion body of wall one top is higher than water conservancy diversion body of wall two tops, and on body fluid position, pond, water conservancy diversion body of wall one separates with at the bottom of biological reaction tank pond, water conservancy diversion body of wall two is connected with at the bottom of biological reaction tank pond, make the sewage level can be lower than water conservancy diversion body of wall one top and higher than water conservancy diversion body of wall two tops, and between water conservancy diversion body of wall one and water conservancy diversion body of wall two, produce bubble by air-diffuser, sewage mixes with bubble, make sewage density between two bodies of wall be less than the sewage density in water conservancy diversion body of wall one outside, thereby bring under the effect of water flow in pressure difference and gas rising, the sewage in water conservancy diversion body of wall one outside can constantly flow in water conservancy diversion body of wall one and water conservancy diversion body of wall two via water conservancy diversion body of wall one bottom, under the poor effect of air tightness, make the liquid level of water conservancy diversion body of wall two inner sides higher than the liquid level in outside, and stop liquid level arbitrarily to flow by water conservancy diversion body of wall one, making liquid flow not cracked ends training wall body two tops flows out, reflux or diving mixer without adopting water pump, not only avoid high power consumption, also there is good sewage plug-flow effect.In addition, on the main feed pipe due to air-diffuser, connect air distributor and multiple micropore aeration pipe, sewage is mixed more even with bubble, produce larger density difference and better plug-flow effect.Meanwhile, on air distributor, connect guiding latch closure, be slidably connected with the directive slide track being fixed at the bottom of pool wall and pond, air distributor and micropore aeration pipe are left the water very easily and carry out inspection and maintenance.Finally, because main feed pipe is hard tubing, coordinate the positioning action of directive slide track, can very easily air distributor and micropore aeration pipe be fixed on to corresponding position, do not worry its floating, do not need counterweight, greatly alleviated the weight of single unit system, reduced the labour intensity of inspection and maintenance yet.
Accompanying drawing explanation
The structural representation of the plug flow device for biological reaction tank that Fig. 1 provides for the utility model embodiment 1.
Fig. 2 is the vertical view of the air-lift device in Fig. 1.
Fig. 3 is the side-view of the air-lift device in Fig. 1.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the technical solution of the utility model is further elaborated.
Embodiment 1
The structural representation of the plug flow device for biological reaction tank that Fig. 1 provides for the utility model embodiment 1.As shown in Figure 1, this plug flow device can be arranged in the biological reaction tank 50 of sewage disposal, and it comprises water conservancy diversion body of wall 1, water conservancy diversion body of wall 2 20 and air-lift device, and air-lift device is placed between water conservancy diversion body of wall 1 and water conservancy diversion body of wall 2 20.Air-lift device comprises air-diffuser 30 and liner 40, water conservancy diversion body of wall one 10 tops are more than sewage level, at the bottom of the pond of water conservancy diversion body of wall 1 and biological reaction tank 50, separate, leave space, water conservancy diversion body of wall one 10 tops are higher than water conservancy diversion body of wall 2 20 tops, and the top of water conservancy diversion body of wall 2 20, below liquid level, is connected at the bottom of the pond of water conservancy diversion body of wall 2 20 bottoms and biological reaction tank 50, particularly, at the bottom of the pond of water conservancy diversion body of wall 2 20 low sides and biological reaction tank 50, be closely connected or be integrated.
In the present embodiment, the distance at the bottom of the pond of water conservancy diversion body of wall one 10 bottoms and biological reaction tank 50 is preferably 200-1500mm, more preferably 400-800mm.Water conservancy diversion body of wall 2 20 is lower than the liquid level 200-1500mm of the pond body of biological reaction tank.Various bodies of wall at the bottom of should " pond body " specifically can comprising the pool wall, pond of biological reaction tank, in biological reaction tank etc.
In the present embodiment, water conservancy diversion body of wall 1 and water conservancy diversion body of wall 2 20 all vertically arrange, and horizontal throw between water conservancy diversion body of wall 1 and water conservancy diversion body of wall 2 20 is preferably 500-1500mm, more preferably 1000-1200mm.
In other embodiments, also can according to actual needs water conservancy diversion body of wall 1 be obliquely installed, angle of inclination for example can be 45 degree, and the direction of inclination can be towards water conservancy diversion body of wall 2 20, be that water conservancy diversion body of wall 1 is gradually short from its bottom to top apart from water conservancy diversion body of wall 2 20, become hydraucone formula.
Fig. 2 is the vertical view of the air-lift device in Fig. 1, and Fig. 3 is the side-view of the air-lift device in Fig. 1.As shown in Figures 2 and 3, air-diffuser 30 comprises main feed pipe 31, and main feed pipe 31 is connected with air distributor 32, and air distributor 32 connects multiple micropore aeration pipes 33, main feed pipe 31 upper ends are provided with control valve 34 and ready-packaged joint 35.In the present embodiment, main feed pipe 31 is hard steel pipe or plastics tubing.
As shown in Figure 1, Figure 2 and Figure 3, liner 40 comprises directive slide track 41 and guiding latch closure 42, and the top of water conservancy diversion body of wall 1 is fixed in directive slide track 41 upper ends, and the Chi Tishang of biological reaction tank 50 is fixed in directive slide track 41 bottoms.Particularly, directive slide track 41 can vertically arrange, and at the bottom of lower end is fixed on the pond of biological reaction tank 50.Directive slide track 41 and guiding latch closure 42 are slidably connected.Guiding latch closure 42 is fixed on air distributor 32, and air distributor 32 is slidably connected by guiding latch closure 42 and directive slide track 41, and guiding latch closure 42 can open or close, and air distributor 32 is separated with directive slide track 41.
304 stainless-steel pipes that in the present embodiment, that main feed pipe 31 can adopt is corrosion-resistant, intensity is higher, it specifically can or be welded to connect air distributor 32 by flange, and air distributor 32 is played to fixed action.
On micropore aeration pipe 33, have micropore, in the present embodiment, micropore aeration pipe 33 preferably offers 2000-10000 micropore on every meter, and the aperture of each micropore is preferably 0.2-1mm; More preferably, micropore aeration pipe 33 offers micropore 3000-6000 on every meter, aperture 0.4-0.8mm.
As shown in Figure 1, air-diffuser 30 can by air feed be responsible for 31 and directive slide track 41 be fixed between water conservancy diversion body of wall 1 and water conservancy diversion body of wall 2 20, directive slide track 31 can arrange many according to the length of air distributor 32, and at the fixing multiple guiding latch closures 42 in the corresponding position of air distributor 32, guiding latch closure 42 and directive slide track 41 are slidably connected, concrete, can close air feed supervisor 31 control valve 34, open the ready-packaged joint 35 on air feed supervisor 31, air feed supervisor 31 is upwards proposed along directive slide track 41, until air distributor 32 and micropore aeration pipe 33 surface, and open guiding latch closure 42, air-diffuser 30 entirety are shifted out to the water surface and carry out inspection and maintenance.
When work, the air that enters air distributor 32 through main feed pipe 31 divides and flows in each micropore aeration pipe 33, and flows out a large amount of micro-bubbles via the intrinsic micropore of micropore aeration pipe 33 and mix with sewage.
After sewage mixes with bubble, density reduces, make the pressure of the sewage between water conservancy diversion body of wall 1 and water conservancy diversion body of wall 2 20 be less than the sewage of water conservancy diversion wall outer side, under pressure difference effect, the sewage in water conservancy diversion body of wall one 10 outsides constantly flows between training wall body 1 and water conservancy diversion body of wall 2 20, and the bubble phase constantly producing with air-diffuser 30 mixes.After sewage between water conservancy diversion body of wall 1 and water conservancy diversion body of wall 2 20 mixes with bubble, liquid level is higher than the sewage level in water conservancy diversion body of wall 2 20 outsides, liquid water conservancy diversion body of wall 2 20 tops of flowing through are continued to flow to water conservancy diversion body of wall two outsides, again because water conservancy diversion body of wall one 20 tops are higher, higher than sewage level, it can stop arbitrarily flowing of liquid level.In Fig. 1, the direction of arrow represents the flow direction of sewage under plug-flow effect.
Therefore, in technique scheme of the present utility model, reflux or diving mixer without adopting water pump, can be in the situation that avoiding high power consumption, also there is good sewage plug-flow effect.And a large amount of micro-bubbles that produce by micropore aeration pipe 33, cause its solubleness in water to improve, homogeneity is better, it is more even that bubble and water mix, can be more stable density difference is provided, stablize the discrepancy in elevation of water level between water conservancy diversion body of wall 1 and water conservancy diversion body of wall 2 20, even and make the liquid level of mixed solution obtain the lifting of 5-15cm, this is that perforated pipe is not realized.Finally, compared with under less energy-consumption, can realize larger plug-flow amount, be conducive to, for active sludge provides a good outside atmosphere, further promote plug-flow effect.
Simultaneously, because the weight of the utility model air-diffuser 30 can alleviate greatly, by main feed pipe 31 and directive slide track 41 and the common fixed air dispersion device 30 of guiding latch closure 42, make it under lighter weight, can not produce and swing and floating yet, due to alleviating of weight, while just greatly reducing inspection and maintenance labor capacity.In the time that air-diffuser 30 needs maintenance or safeguards, first close the control valve 34 on air feed supervisor 31, open ready-packaged joint 35, traction air feed supervisor 31 moves on directive slide track 41, air distributor 32 and micropore aeration pipe 33 shift out the water surface, then open guiding latch closure 42, air-diffuser 30 is separated with directive slide track 41, and then maintenance micropore aeration pipe 33 and air distributor 32, after maintenance, air-diffuser 30 and directive slide track 41 are slidably connected by guiding latch closure 42, and under slide to fixed position, locking quick-mounting joint 35, open control valve 34, air diffuser 30 recovers normal work.
Embodiment 2
The utility model embodiment 2 provides a kind of Sewage treatment systems, comprise biological reaction tank, in biological reaction tank, be provided with the plug flow device for biological reaction tank that at least one the utility model embodiment 1 provides, and be provided with partition wall between each described plug flow device for biological reaction tank.
Each plug flow device can work independently, and its structure, principle of work and technique effect are described in detail in embodiment 1, repeat no more.
Partition wall effect is to prevent phase mutual interference between the air-lift device of adjacent plug flow device, therefore, partition wall bottom can be connected with at the bottom of biological reaction tank pond, and make its top higher than liquid level.
Finally it should be noted that: above embodiment only, in order to the technical solution of the utility model to be described, is not intended to limit; Although the utility model is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record aforementioned each embodiment is modified, or part technical characterictic is wherein equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of the each embodiment technical scheme of the utility model.
Claims (9)
1. the plug flow device for biological reaction tank, it is characterized in that, comprise water conservancy diversion body of wall one, water conservancy diversion body of wall two and air-lift device, water conservancy diversion body of wall one top is higher than water conservancy diversion body of wall two tops, at the bottom of the pond of water conservancy diversion body of wall two bottoms and biological reaction tank, be connected, water conservancy diversion body of wall one bottom separates with the bottom of biological reaction tank, described air-lift device is fixed between described water conservancy diversion body of wall one and water conservancy diversion body of wall two, described air-lift device comprises air-diffuser and liner, described air-diffuser comprises main feed pipe and the air distributor being connected with main feed pipe, air distributor connects multiple micropore aeration pipes, described liner comprises directive slide track and guiding latch closure, and the top of water conservancy diversion body of wall one is fixed in described directive slide track upper end, and the Chi Tishang of biological reaction tank is fixed in directive slide track lower end, and air distributor is slidably connected by guiding latch closure and directive slide track.
2. the plug flow device for biological reaction tank according to claim 1, is characterized in that, described water conservancy diversion body of wall two is lower than the liquid level 200-1500mm of biological reaction tank.
3. the plug flow device for biological reaction tank according to claim 1, is characterized in that, the distance between at the bottom of the pond of described water conservancy diversion body of wall one bottom and biological reaction tank is 200-1500mm.
4. the plug flow device for biological reaction tank according to claim 1, is characterized in that, the horizontal throw between described water conservancy diversion body of wall one and water conservancy diversion body of wall two is 500-1500mm.
5. according to the plug flow device for biological reaction tank described in claim 1-4 any one, it is characterized in that, control valve and ready-packaged joint are equipped with in described main feed pipe upper end, and described main feed pipe is hard steel pipe or plastics tubing.
6. according to the plug flow device for biological reaction tank described in claim 1-4 any one, it is characterized in that, on every meter of described micropore aeration pipe, offer 2000-10000 micropore, the aperture of described micropore is 0.2-1mm.
7. according to the plug flow device for biological reaction tank described in claim 1-4 any one, it is characterized in that, described air distributor has 2-12 micro-pore aeration tube stub, and described micro-pore aeration tube stub is located at air distributor both sides or a side, and described air distributor length is 1m-6m.
8. according to the plug flow device for biological reaction tank described in claim 1-4 any one, it is characterized in that, described directive slide track vertically arranges, and at the bottom of its lower end is fixed on the pond of biological reaction tank.
9. a Sewage treatment systems, it is characterized in that, comprise biological reaction tank, in described biological reaction tank, be provided with at least one plug flow device for biological reaction tank as described in claim 1-8 any one, between each described plug flow device for biological reaction tank, be provided with partition wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884281.2U CN203683211U (en) | 2013-12-30 | 2013-12-30 | Plug flow device and sewage treatment system for biological reaction tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320884281.2U CN203683211U (en) | 2013-12-30 | 2013-12-30 | Plug flow device and sewage treatment system for biological reaction tank |
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| Publication Number | Publication Date |
|---|---|
| CN203683211U true CN203683211U (en) | 2014-07-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320884281.2U Expired - Lifetime CN203683211U (en) | 2013-12-30 | 2013-12-30 | Plug flow device and sewage treatment system for biological reaction tank |
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| Country | Link |
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| CN (1) | CN203683211U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110642368A (en) * | 2019-10-30 | 2020-01-03 | 欧基（上海）环保科技有限公司 | Purifying equipment and two-chamber type air stripping equipment thereof |
-
2013
- 2013-12-30 CN CN201320884281.2U patent/CN203683211U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110642368A (en) * | 2019-10-30 | 2020-01-03 | 欧基（上海）环保科技有限公司 | Purifying equipment and two-chamber type air stripping equipment thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190510 Address after: 100024 No. 121, Building 1, Guanzhuang Road, Changying Township, Chaoyang District, Beijing Patentee after: MBP ENVIRONMENTAL ENGINEERING CO.,LTD. Address before: Room 301, Unit 2, Building 10 No. 1, West Village, Dingfuzhuang, Chaoyang District, Beijing Patentee before: EBIS (BEIJING) ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140702 |
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| CX01 | Expiry of patent term |