CN203159296U - Electro-coagulation wastewater treatment equipment - Google Patents
Electro-coagulation wastewater treatment equipment Download PDFInfo
- Publication number
- CN203159296U CN203159296U CN 201320110238 CN201320110238U CN203159296U CN 203159296 U CN203159296 U CN 203159296U CN 201320110238 CN201320110238 CN 201320110238 CN 201320110238 U CN201320110238 U CN 201320110238U CN 203159296 U CN203159296 U CN 203159296U
- Authority
- CN
- China
- Prior art keywords
- pole piece
- cylindrical shell
- negative electrode
- vertical cylindrical
- anode
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
The utility model provides electro-coagulation wastewater treatment equipment. The equipment comprises a base, a vertical cylinder, a lower cover plate, an upper cover plate, an electrolysis pole piece set and a pressure water jet sheet, wherein the lower cover plate is arranged at the bottom of the vertical cylinder, fixedly supported on the base and provided with a water inlet through which wastewater enters; the upper cover plate is arranged on the top of the vertical cylinder and provided with a water outlet for discharging the treated wastewater; the electrolysis pole piece set is positioned in a space between the upper cover plate and the lower cover plate in the vertical cylinder, fixedly connected to the vertical cylinder and connected with an external power supply; the electrolysis pole piece set comprises an anode unit and a cathode unit; the anode unit comprises an anode pole piece; the cathode unit comprises a cathode pole piece; and the pressure water jet sheet penetrates through the vertical cylinder in a sealed and insulated mode and is correspondingly arranged on the electrolysis set to correspondingly jet pressure water to the anode pole piece and the cathode pole piece in the electrolysis pole piece set to remove scales. The electro-coagulation wastewater treatment equipment is simple in structure and can effectively ensure the cleanliness of the surfaces of the pole pieces and prevent the pole pieces from scaling and being passivated.
Description
Technical field
The utility model relates to a kind of sewage treatment equipment, relates in particular to a kind of electrocoagulation sewage treatment equipment.
Background technology
The electrocoagulation water-purifying process is the water technology of an advanced science, it mainly acts on and being: can be in giving water treatment separately or as the pre-treatment of other water purifying plant, not only turbidity removal decolouring, the algae of anhydrating, defluorination, deironing and some other heavy metal ion, the effect of sterilization and disinfection in addition; In handling, draining plays effects such as flocculation sediment, decolored degradation BOD5, COD, NH3-N.Particularly some highly difficult wastewater treatments, it has the effect that can not liken, has well fracturing outlet liquid re-injection water treatment to be applied at present in the oil field.Because it is a comprehensive electrochemistry reflection process, Application Areas is extensive especially.Its ultimate principle is to utilize electrochemical method to produce multiple electrochemical reaction, mainly comprises electrooxidation, electroreduction, electricity flocculation, electric floating four parts.
The electrocoagulation sewage treatment equipment has multiple physics chemical action such as oxidation, reduction, neutralization, cohesion, dissolved air flotation according to electrolysis and electrocoagulation principle to pollutent in the waste water, can finish the processing of waste water moment, and is particularly as follows:
After waste water entered electrocoagulation equipment, under galvanic effect, anode generation oxidizing reaction and negative electrode generation reduction reaction mainly took place in two electrolysis cells of electrocoagulation equipment.In anodic oxidation reactions, metal anode is subjected to electrochemical action, and is soluble in water with ionic condition, generates metal hydroxides through hydrolysis reaction, as flocculation agent the suspended substance in the waste water and colloidal impurity played cohesion; Simultaneously, OH-ion discharge generation oxygen on anode in the waste water, nascent oxygen has extremely strong oxygenizement to organic in the waste water and inorganic pollutant.In negative electrode generation reduction reaction, metal ion is obtained electronics and is reduced at negative electrode, separates out at cathode surface; Some organism generation reduction reaction particularly is in some pigment of oxidation state, and can reduce in electrolysis becomes colorless substance; H+ obtains being reduced into hydrogen behind the electronics, overflows in the micro bubble mode, can adhere to floss and oily substance in the waste water, makes its proportion diminish, and is floating to the water surface, produces the air supporting effect.
In the electrocoagulation treatment facility, be the problem that industry is paid close attention to for the pole piece Passivation Treatment always.The Chinese utility model patent CN201362607Y of Granted publication disclosed a kind of electrocoagulation equipment for trade effluent and sanitary wastewater processing on December 6th, 2009, it adopts mechanical slag scraper that the dirt of pole piece is carried out clean and avoids the pole piece passivation, but this complex structure and owing to adopt the physical disturbance formula, easily pole piece is caused damage, thereby influence waste water treatment efficiency and effect.In addition, in order to make flow path S-shaped, its pole piece adopts the circular water hole that also has, and this makes the intensity that the installation of pole piece becomes complicated and reduces vertical cylindrical shell easily.
The utility model content
In view of the problem that exists in the background technology, the purpose of this utility model is to provide a kind of electrocoagulation sewage treatment equipment, its simple in structure and can guarantee effectively polar board surface cleaning, avoid pole plate fouling passivation.
In order to realize above-mentioned purpose of the present utility model, the utility model provides a kind of electrocoagulation sewage treatment equipment, and it comprises base, vertical cylindrical shell, lower cover, upper cover plate, electrolysis pole piece group and pressure jetting sheet.Lower cover is arranged at the bottom of vertical cylindrical shell and is fixedly supported on the base and is provided with the water-in that enters for waste water.Upper cover plate is arranged at the top of vertical cylindrical shell and is provided with the water outlet that the waste water after handling is discharged.Electrolysis pole piece group is in the upper cover plate of vertical cylindrical shell and the space between the lower cover and be fixedly connected on vertical cylindrical shell and be electrically connected with external power source.Electrolysis pole piece group comprises anode unit and cathode electrode unit.Anode unit comprises: anode pole piece, sealed insulation wear vertical cylindrical shell; And the anode pole piece web member, it is outer and be connected and be connected with the positive pole of external power source with partial fixing that anode pole piece passes vertical cylindrical shell to be arranged at vertical cylindrical shell.Cathode electrode unit comprises: negative electrode pole piece, sealed insulation wear vertical cylindrical shell; Negative electrode pole piece web member, it is outer and be connected and be connected with the negative pole of external power source with partial fixing that the negative electrode pole piece passes vertical cylindrical shell to be arranged at vertical cylindrical shell.Pressure jetting sheet sealed insulation wears vertical cylindrical shell and correspondence is arranged at the electrolysis group, so that the anode pole piece in the electrolysis pole piece group and negative electrode pole piece are carried out corresponding pressure water injection and scale removal.
The beneficial effects of the utility model are as follows:
By the setting of pressure jetting sheet, guarantee that the anode pole piece of electrolysis group and negative electrode pole piece cleaning do not have dirt, eliminated the pole piece passivation phenomenon of electrolysis group, guaranteed that the electrolytic reaction high-level efficiency carries out.
Mechanical slag scraper by in the pressure jetting sheet replacement background technology simplifies the structure.
Strengthened the stirring of water-in to the current of water outlet by pressure jetting sheet, waste water is fully reacted, improved processing efficiency and treatment effect.
Description of drawings
Fig. 1 is the two dimensional structure synoptic diagram according to electrocoagulation sewage treatment equipment of the present utility model;
Fig. 2 is the perspective view of cathode electrode unit;
Fig. 3 is the perspective view of anode unit;
Fig. 4 is the perspective view of a pressure jetting sheet;
Fig. 5 is the schematic perspective view of another alternative structure of anode pole piece;
Fig. 6 is the schematic perspective view of another alternative structure of negative electrode pole piece.
Wherein, description of reference numerals is as follows:
1 base, 511 anode pole pieces
2 vertical cylindrical shell 512 anode pole piece web members
3 lower covers, 52 cathode electrode units
31 water-ins, 521 negative electrode pole pieces
4 upper cover plates, 522 negative electrode pole piece web members
41 water outlets, 6 pressure jetting sheets
5 electrolysis pole piece groups, 61 spout holes
51 anode units
Embodiment
Describe in detail according to electrocoagulation sewage treatment equipment of the present utility model below in conjunction with accompanying drawing.
With reference to Fig. 1 and in conjunction with Fig. 2-Fig. 3, comprise according to electrocoagulation sewage treatment equipment of the present utility model: base 1; Vertical cylindrical shell 2; Lower cover 3 is arranged at the bottom of vertical cylindrical shell 2 and is fixedly supported on the base 1 and is provided with the water-in 31 that enters for pending waste water; Upper cover plate 4 is arranged at the top of vertical cylindrical shell 2 and is provided with the water outlet 41 that the waste water after handling is discharged; Electrolysis pole piece group 5 is in the upper cover plate 4 of vertical cylindrical shell 2 and the space between the lower cover 3 and be fixedly connected on vertical cylindrical shell 2 and be connected with the external power source (not shown); And pressure jetting sheet 6, sealed insulation wears vertical cylindrical shell 2 and correspondence is arranged at electrolysis group 5, so that the anode pole piece 511 in the electrolysis pole piece group 5 and negative electrode pole piece 521 are carried out the relevant pressure jet of water and scale removal.Wherein, electrolysis pole piece group 5 comprises anode unit 51 and cathode electrode unit 52.Anode unit 51 comprises: anode pole piece 511, sealed insulation wear vertical cylindrical shell 2; And anode pole piece web member 512, it is outer and be connected and be connected with the positive pole of external power source (not shown) with partial fixing that anode pole piece 511 passes vertical cylindrical shell 2 to be arranged at vertical cylindrical shell 2.Cathode electrode unit 52 comprises: negative electrode pole piece 521, sealed insulation wear vertical cylindrical shell 2; And negative electrode pole piece web member 522, it is outer and be connected and be connected with the negative pole of external power source (not shown) with partial fixing that negative electrode pole piece 521 passes vertical cylindrical shell 2 to be arranged at vertical cylindrical shell 2.
In according to electrocoagulation sewage treatment equipment of the present utility model, vertical cylindrical shell 2 can be round shape, square tube shape or many ribs tubular.
By pressure jetting sheet 6, guarantee that the anode pole piece 511 of electrolysis group 5 and negative electrode pole piece 521 cleanings do not have dirt, eliminated the pole piece passivation phenomenon of electrolysis group 5, guaranteed that the electrolytic reaction high-level efficiency carries out.In addition, strengthened the stirring of water-in 31 to the current of water outlet 41 by pressure jetting sheet 6, waste water is fully reacted, improved waste water treatment efficiency and treatment effect.
In the further preferred embodiment of electrolysis pole piece group 5, with reference to Fig. 1 and in conjunction with Fig. 2-4, anode pole piece 511 is a plurality of, negative electrode pole piece 521 is a plurality of, described a plurality of anode pole piece 511 and described a plurality of negative electrode pole piece 521 are crisscross arranged, arrange a pressure jetting sheet 6 above electrolysis pole piece group 5, at a pressure jetting of electrolysis pole piece group 5 arranged beneath sheet 6, each in electrolysis pole piece group 5 is to installing a pressure jetting sheet 6 between staggered anode pole piece 511 and the negative electrode pole piece 521; The spout hole 61(that each pressure jetting sheet 6 is distributed with anode pole piece 511 to correspondence, negative electrode pole piece 521 directions water spray as shown in Figure 4).In addition, each pressure jetting sheet 6 with the face vertical to the direction of corresponding anode pole piece 511, negative electrode pole piece 521 water sprays on also can be provided with spout hole 61, thereby can strengthen mixing effect.Need to prove at this, the pressure jetting sheet 6 that Fig. 4 provides does not demonstrate the spout hole 61 of setting on its bottom, for that pressure jetting sheet 6 that is arranged at above electrolysis pole piece group 5, the spout hole 61 of this pressure jetting sheet will be arranged on its lower surface surface of uppermost anode pole piece 511 (namely towards); For that pressure jetting sheet 6 that is arranged at below electrolysis pole piece group 5, the spout hole of this pressure jetting sheet 61 is wanted the surface disposed thereon surface of nethermost anode pole piece 511 (namely towards); The mediate pressure jetting sheet 6 at position can arrange spout hole 61 at upper surface and lower surface, with anode pole piece 511 and negative electrode pole piece 521 injection waters respectively.
In an embodiment of pressure jetting sheet 6, as shown in Figure 4, pressure jetting sheet 6 is in shape with the anode pole piece 511 of corresponding electrolysis pole piece group 5 or negative electrode pole piece 521 shapes are corresponding and described a plurality of spout holes 61 of distributing are rule and arrange.Annular array, arranged etc. are for example adopted in described regular arrangement.Preferably, anode pole piece 511 and negative electrode pole piece 521 are rectangle.
In an embodiment of anode pole piece 511 and negative electrode pole piece 521, as shown in Figure 5 and Figure 6, anode pole piece 511 undulates, negative electrode pole piece 521 undulates, the part spout hole 61 in described a plurality of spout holes 61 of pressure jetting sheet 6 is towards the corrugated trough towards correspondence.Based on the pressure flow of directive trough, form eddy current at the trough place, wash thereby play the dirt of more effectively removing on the corresponding pole piece (anode pole piece 511 or negative electrode pole piece 521), to reduce and to avoid fouling on pole piece.More preferably, pressure jetting sheet 6 is turnable, thereby has strengthened mixing effect, has improved processing efficiency and effect to waste water.Pressure jetting sheet 6 is set to adopt technology well known in the art to carry out turnably, for example adopts rolling bearing to add drive unit setting, can also adopt rocker-arm mechanism to realize.But what need supplementary notes is that the angle of rotation can be looked practical situation and be determined.The shape of pressure jetting sheet 6 can still adopt rectangular form shown in Figure 4 at this moment, also can adopt the pipe form certainly.
Make a brief explanation at last according to the operation of electrocoagulation sewage treatment equipment of the present utility model.
Waste water enters in the vertical cylindrical shell 2 from water-in 31, from bottom to top moves upward then, handles waste water by electrolysis pole piece group 5, discharges from water outlet 41 at last.When handling waste water, by pressure jetting sheet 6 except the dirt of the anode pole piece 511 of correspondence down and negative electrode pole piece 521 with handle after waste water together via water outlet 41 discharges.
Claims (8)
1. an electrocoagulation sewage treatment equipment is characterized in that, comprising:
Base (1);
Vertical cylindrical shell (2);
Lower cover (3) is arranged at the bottom of vertical cylindrical shell (2) and is fixedly supported on base (1) and goes up and be provided with the water-in (31) that enters for waste water;
Upper cover plate (4) is arranged at the top of vertical cylindrical shell (2) and is provided with the water outlet (41) that the waste water after handling is discharged;
Electrolysis pole piece group (5) is positioned at upper cover plate (4) and the space between the lower cover (3) of vertical cylindrical shell (2) and is fixedly connected on vertical cylindrical shell (2) and is electrically connected in external power source, and electrolysis pole piece group (5) comprising:
Anode unit (51) comprising:
Anode pole piece (511), sealed insulation wear vertical cylindrical shell (2); And
Anode pole piece web member (512), it is outer and be connected and be connected with the positive pole of external power source with partial fixing that anode pole piece (511) passes vertical cylindrical shell (2) to be arranged at vertical cylindrical shell (2);
Cathode electrode unit (52) comprising:
Negative electrode pole piece (521), sealed insulation wear vertical cylindrical shell (2); And
Negative electrode pole piece web member (522), it is outer and be connected and be connected with the negative pole of external power source with partial fixing that negative electrode pole piece (521) passes vertical cylindrical shell (2) to be arranged at vertical cylindrical shell (2); And
Pressure jetting sheet (6), sealed insulation wear vertical cylindrical shell (2) and correspondence is arranged at electrolysis group (5), so that the anode pole piece (511) in the electrolysis pole piece group (5) and negative electrode pole piece (521) are carried out corresponding pressure water injection and scale removal.
2. electrocoagulation sewage treatment equipment according to claim 1, it is characterized in that, anode pole piece (511) is a plurality of, negative electrode pole piece (521) is a plurality of, described a plurality of anode pole piece (511) and described a plurality of negative electrode pole pieces (521) are crisscross arranged, arrange a pressure jetting sheet (6) in electrolysis pole piece group (5) top, at electrolysis pole piece group (5) arranged beneath pressure jetting sheet (6), each in electrolysis pole piece group (5) is to installing a pressure jetting sheet (6) between staggered anode pole piece (511) and the negative electrode pole piece (521);
Each pressure jetting sheet (6) is distributed with the anode pole piece (511) to correspondence, the spout hole (61) of negative electrode pole piece (521) direction water spray.
3. electrocoagulation sewage treatment equipment according to claim 2 is characterized in that, the vertical face of the direction with spraying water to corresponding anode pole piece (511), negative electrode pole piece (521) of each pressure jetting sheet (6) is provided with spout hole (61).
4. electrocoagulation sewage treatment equipment according to claim 3, it is characterized in that pressure jetting sheet (6) is in shape with the anode pole piece (511) of corresponding electrolysis pole piece group (5) or negative electrode pole piece (521) shape is corresponding and a plurality of spout holes (61) of arranging are rule and arrange.
5. electrocoagulation sewage treatment equipment according to claim 4 is characterized in that, anode pole piece (511) and negative electrode pole piece (521) are rectangle.
6. electrocoagulation sewage treatment equipment according to claim 3, it is characterized in that, anode pole piece (511) undulate, negative electrode pole piece (521) undulate, the part spout hole (61) in described a plurality of spout holes (61) of pressure jetting sheet (6) is towards the corrugated trough towards correspondence.
7. electrocoagulation sewage treatment equipment according to claim 6 is characterized in that, pressure jetting sheet (6) is turnable.
8. electrocoagulation sewage treatment equipment according to claim 1 is characterized in that, vertical cylindrical shell (2) is round shape, square tube shape or many ribs tubular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320110238 CN203159296U (en) | 2013-03-12 | 2013-03-12 | Electro-coagulation wastewater treatment equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320110238 CN203159296U (en) | 2013-03-12 | 2013-03-12 | Electro-coagulation wastewater treatment equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203159296U true CN203159296U (en) | 2013-08-28 |
Family
ID=49020499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320110238 Expired - Lifetime CN203159296U (en) | 2013-03-12 | 2013-03-12 | Electro-coagulation wastewater treatment equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203159296U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663736A (en) * | 2013-12-03 | 2014-03-26 | 上海鸿越环境科技有限公司 | Semi-automatic cooling circulating water sterilizing and descaling device and cooling circulating water sterilizing and descaling method |
| CN106430745A (en) * | 2016-08-29 | 2017-02-22 | 宜兴市凌泰环保设备有限公司 | Horizontal rotating-pole electrocatalytic oxidation sewage removing system |
| CN107512805A (en) * | 2017-09-26 | 2017-12-26 | 萍乡市华星化工设备填料有限公司 | A kind of coking chemical waste water electrolysis unit that can extend electrode life |
| CN107555547A (en) * | 2017-09-26 | 2018-01-09 | 萍乡市华星化工设备填料有限公司 | A kind of coking chemical waste water electrolysis unit with backwashing function |
| CN108059216A (en) * | 2017-11-09 | 2018-05-22 | 中国恩菲工程技术有限公司 | Electric flocculation device |
| CN116282400A (en) * | 2023-03-15 | 2023-06-23 | 吉林大学 | Double-pulse piezoelectric flocculation method for treating mine acid wastewater containing heavy metals |
-
2013
- 2013-03-12 CN CN 201320110238 patent/CN203159296U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103663736A (en) * | 2013-12-03 | 2014-03-26 | 上海鸿越环境科技有限公司 | Semi-automatic cooling circulating water sterilizing and descaling device and cooling circulating water sterilizing and descaling method |
| CN103663736B (en) * | 2013-12-03 | 2015-06-03 | 上海鸿越环境科技有限公司 | Semi-automatic cooling circulating water sterilizing and descaling device and cooling circulating water sterilizing and descaling method |
| CN106430745A (en) * | 2016-08-29 | 2017-02-22 | 宜兴市凌泰环保设备有限公司 | Horizontal rotating-pole electrocatalytic oxidation sewage removing system |
| CN107512805A (en) * | 2017-09-26 | 2017-12-26 | 萍乡市华星化工设备填料有限公司 | A kind of coking chemical waste water electrolysis unit that can extend electrode life |
| CN107555547A (en) * | 2017-09-26 | 2018-01-09 | 萍乡市华星化工设备填料有限公司 | A kind of coking chemical waste water electrolysis unit with backwashing function |
| CN107555547B (en) * | 2017-09-26 | 2020-12-22 | 萍乡市华星环保工程技术有限公司 | Coking wastewater electrolysis device with back flush function |
| CN107512805B (en) * | 2017-09-26 | 2020-12-22 | 萍乡市华星环保工程技术有限公司 | Coking wastewater electrolysis device capable of prolonging service life of electrode |
| CN108059216A (en) * | 2017-11-09 | 2018-05-22 | 中国恩菲工程技术有限公司 | Electric flocculation device |
| CN116282400A (en) * | 2023-03-15 | 2023-06-23 | 吉林大学 | Double-pulse piezoelectric flocculation method for treating mine acid wastewater containing heavy metals |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203159296U (en) | Electro-coagulation wastewater treatment equipment | |
| JP4889124B2 (en) | Fluid processing equipment | |
| KR101982989B1 (en) | Floating type Green tide Removal device | |
| Nidheesh et al. | Emerging applications, reactor design and recent advances of electrocoagulation process | |
| CN201793449U (en) | Combined electrolysis equipment for treating emulsified oil wastewater | |
| CN101575161B (en) | High-salt-content organic wastewater treating device | |
| CN212864481U (en) | Mobile intelligent laboratory comprehensive wastewater treatment equipment | |
| CN101250013A (en) | Novel electrolysis air-float sewage water processing unit | |
| CN102757113B (en) | Electrolytic flotation equipment | |
| CN203558889U (en) | Multi-frequency ultrasonic microelectrolysis acoustic chemical wastewater treatment device | |
| CN201971667U (en) | High-voltage pulsed electric coagulation equipment for treating organic wastewater | |
| CN101723532B (en) | System for treating concentrated water produced by coking wastewater recycling process | |
| CN212334880U (en) | Electrode plate assembly and electric flocculation sewage treatment device | |
| CN110510710A (en) | Electric flocculation and electrocatalytic oxidation integrated waste-water treater | |
| CN203256088U (en) | Integrated organic wastewater treatment system | |
| CN103523869A (en) | Rotary-drum high-voltage pulse electric flocculation device | |
| CN209456241U (en) | A kind of processing system in ship processing oil-containing waste water for ship | |
| CN214611955U (en) | Paint spraying wastewater treatment device | |
| CN201183768Y (en) | Sewage treating device | |
| CN102642898B (en) | Sewage three-dimensionally flowing electrolysis treatment device | |
| CN209098270U (en) | A kind of electrochemistry sewage-treatment plant | |
| CN102815767A (en) | Self-cleaning composite active carbon electrode electrolytic oxidation-reduction method and device thereof | |
| CN202430076U (en) | High-frequency impulse full-automatic treatment device for petroleum drilling sewage | |
| KR100875505B1 (en) | Wastewater Treatment System Using Electro-oxidation and Coagulation | |
| CN2630234Y (en) | Supersonic forced electric flocculation generator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 550000, room 5, building 505, building A, Jinli building, 89 Tuyun Road, Guizhou, Guiyang Patentee after: VIDAR ENVIRONMENT TECHNOLOGY CO.,LTD. Patentee after: HEBEI ZHONGKE WEIDE ENVIRONMENTAL ENGINEERING CO.,LTD. Address before: 550002 B592 building, Jinyang hi tech Industrial Park, Guiyang hi tech Development Zone, Guizhou, China Patentee before: GUIZHOU WEIDE ENVIRONMENT TECHNOLOGY Co.,Ltd. Patentee before: HEBEI ZHONGKE WEIDE ENVIRONMENTAL ENGINEERING CO.,LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130828 |
|
| CX01 | Expiry of patent term |