CN204385019U - One way of life sewage purification flow lifting type fixed reactor - Google Patents
One way of life sewage purification flow lifting type fixed reactor Download PDFInfo
- Publication number
- CN204385019U CN204385019U CN201420736750.0U CN201420736750U CN204385019U CN 204385019 U CN204385019 U CN 204385019U CN 201420736750 U CN201420736750 U CN 201420736750U CN 204385019 U CN204385019 U CN 204385019U
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- China
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- frame plate
- stirring rake
- lifting type
- type fixed
- end cap
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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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Biological Treatment Of Waste Water (AREA)
- Treatment Of Sludge (AREA)
Abstract
The utility model discloses one way of life sewage purification flow lifting type fixed reactor, reactor comprises cylindrical shell, end cap, liquid-inlet pipe, residue outlet, raw material inlet pipe, methane outlet pipe and drain pipe, settling pit is disposed with from the bottom up in cylindrical shell, equalizing tank, up-flow pond, biological filter and treating pond, precipitation plate is provided with between settling pit and equalizing tank, bio-tank is provided with in biological filter, the surrounding of biological filter is provided with heating container, the end face of end cap is provided with solar panel group, solar panel group is by expansion link connecting fluid cylinder pressure, hydro-cylinder is positioned at end cap, motor is provided with in end cap, first accumulate case and the second accumulate case, motor is connected with rotating shaft, rotating shaft is fixedly connected with up-flow stirring rake, first stirring rake and the second stirring rake.The utility model not only increases the wastewater purification efficiency of flow lifting type fixed reactor, and provides the operation of motor and heating container by the electric energy that solar panel group produces, environment-protecting clean, improves the production efficiency of biogas.
Description
Technical field
The utility model relates to one way of life sewage purification flow lifting type fixed reactor.
Background technology
Along with continuous progress and the development of society, industrialized process is developed rapidly, but the generation of simultaneous more multi-pollutant, sanitary sewage and industrial sewage become the problem more and more paid close attention to.
Flow lifting type fixed reactor is that a kind of structure is simple, is applicable to the reactor of higher suspension solid material.Raw material enters in digestive organ from bottom, contacts with the active sludge in digestive organ, makes raw material obtain rapid digestion.Indigested biomass solid particle and methane fermentating microorganism are stranded in digestive organ by natural subsidence, supernatant liquor overflows from digestive organ top, the solids retention phase more much higher than hydraulic retention times and microorganism residence time can be obtained like this, thus improve the rate of decomposition of solid organic matters and the efficiency of digestive organ.
There are some shortcomings in flow lifting type fixed reactor of the prior art: 1, does not have whipping appts in reactor, and wastewater purification efficiency is comparatively slow, and purification is of low quality; 2, the biogas produced can not carry out voltage stabilizing, easily there is potential safety hazard; 3, the electric energy of reactor needs could run well by connecting 220V voltage; 4, do not have heating and heat-insulating device, the decomposition efficiency of biological filter is effective.
Utility model content
The utility model object is the technical scheme providing one way of life sewage purification flow lifting type fixed reactor for the deficiency existing for prior art, when sewage enters in cylindrical shell by liquid-inlet pipe, successively through settling pit, equalizing tank, up-flow pond, biological filter and treating pond, fixing organism in sewage is decomposed, and by the metabolism of microorganism by organic pollutant degradation, reach and purify water, the object of decontamination, make flow lifting type fixed reactor self can provide energy by the design of solar panel group, for motor and heating container provide safeguard, and then improve the production efficiency of biogas and the efficiency of sewage purification, improve security during reactor work.
In order to solve the problems of the technologies described above, the utility model adopts following technical scheme:
One way of life sewage purification flow lifting type fixed reactor, reactor comprises cylindrical shell, end cap, liquid-inlet pipe, residue outlet, raw material inlet pipe, methane outlet pipe and drain pipe, end cap is fixedly connected on the end face of cylindrical shell, it is characterized in that: in cylindrical shell, be disposed with settling pit from the bottom up, equalizing tank, up-flow pond, biological filter and treating pond, the sidewall of settling pit is provided with residue outlet, precipitation plate is provided with between settling pit and equalizing tank, the sidewall of equalizing tank is provided with liquid-inlet pipe and raw material inlet pipe, liquid-inlet pipe is fixedly connected on cylindrical shell by grid device, bio-tank is provided with in biological filter, bio-tank is evenly distributed in biological filter, the surrounding of biological filter is provided with heating container, the sidewall for the treatment of pond is provided with methane outlet pipe and drain pipe, drain pipe is fixed on the sidewall of cylindrical shell by retaining clip, the end face of end cap is provided with solar panel group, solar panel group comprises the first frame plate and the second frame plate, first frame plate is rotationally connected the second frame plate by coupling shaft, the medial surface of the first frame plate and the second frame plate is provided with chute, chute is fixedly connected with expansion link by limiting plate, solar panel group is by expansion link connecting fluid cylinder pressure, hydro-cylinder is positioned at end cap, motor is provided with in end cap, first accumulate case and the second accumulate case, motor is connected with rotating shaft, rotating shaft is through in settling pit, rotating shaft is fixedly connected with up-flow stirring rake, first stirring rake and the second stirring rake, up-flow stirring rake is positioned at up-flow pond, first stirring rake is positioned at equalizing tank, second stirring rake is positioned at settling pit, when sewage enters in cylindrical shell by liquid-inlet pipe, successively through settling pit, equalizing tank, up-flow pond, biological filter and treating pond, fixing organism in sewage is decomposed, and by the metabolism of microorganism by organic pollutant degradation, reach and purify water, the object of decontamination, not only can reduce the discharge of sewage, protection of the environment, and biogas can be produced clean energy is provided, large granular impurity in sewage can filter by grid device effectively, prevent it from entering in equalizing tank and block filtering net, bio-tank provides a good environment can to the existence of microorganism, simultaneously by the heating of heating container, the temperature in bio-tank can be made to remain on the most effective temperature of fermentable, improve the production efficiency of biogas, the clear liquid produced can be discharged by drain pipe, the design of solar panel group not only self can provide electric energy by realization response device, for heating container and motor provide safeguard, and then realize the scavenging effect of environmental protection, first frame plate and the second frame plate can carry out angular adjustment according to the physical location of the sun, simultaneously when sunlight cannot shine directly on the first frame plate and the second frame plate, can primer fluid cylinder pressure, by expansion link, the first frame plate and the second frame plate are risen, improve the collection effciency of sun power, up-flow stirring rake can make sewage flow from the bottom up, improve the purification efficiency of sewage, first stirring rake can make the sewage that just entered and raw material stirring even, the sand be convenient in sewage deposits to bottom, the sand of deposition is flowed into settling pit by unidirectional cinder hole simultaneously, the sand finally precipitated then cleans by the second stirring rake, discharged by residue outlet.
Further, precipitation plate is provided with pilot hole and unidirectional cinder hole, pilot hole is positioned at the center of precipitation plate, pilot hole and rotating shaft match, unidirectional traverse baffle is provided with in unidirectional cinder hole, unidirectional traverse baffle is rotatably connected in unidirectional cinder hole, when sewage enter equalizing tank mix with raw material time, unidirectional traverse baffle is vertical, settling pit is flowed into after being convenient to sand deposition, when up-flow stirring rake works, unidirectional traverse baffle turns an angle, the sand sinking to bottom is prevented again to be back in equalizing tank by unidirectional cinder hole under the effect of liquid, and then reduce the purification efficiency of sewage.
Further, strongback is provided with in grid device, strongback is evenly distributed with grid barb, grid barb direction on adjacent two strongbacks is contrary, grid barb can carry out filtration cleaning to the impurity of larger particles in sewage effectively, blocks unidirectional cinder hole after preventing larger particles impurity from entering equalizing tank.
Further, the inwall of cylindrical shell is provided with warming plate, it is slower that warming plate can make the temperature in cylindrical shell reduce, and reduces the loss of energy.
Further, be provided with filtering net between equalizing tank and up-flow pond, filtering net can effectively prevent the granule foreign of equalizing tank from entering up-flow pond, prevents granule foreign from blocking the passage of biological filter, improves the working efficiency of reactor.
Further, the sidewall for the treatment of pond is provided with voltage stabilizing tube, voltage stabilizing tube can make the biogas pressure in treating pond constant, prevents because biogas pressure constantly rises and causes potential safety hazard.
Further, the rotational angle of the first frame plate and the second frame plate is a, and the scope of rotational angle a is 0 ゜ ~ 30 ゜, improves the assimilated efficiency of sun power.
The utility model, owing to have employed technique scheme, has following beneficial effect:
1, when sewage enters in cylindrical shell by liquid-inlet pipe, successively through settling pit, equalizing tank, up-flow pond, biological filter and treating pond, fixing organism in sewage is decomposed, and by the metabolism of microorganism by organic pollutant degradation, reach purify water, the object of decontamination, not only can reduce the discharge of sewage, protection of the environment, and biogas can be produced clean energy is provided;
2, bio-tank provides a good environment can to the existence of microorganism, simultaneously by the heating of heating container, the temperature in bio-tank can be made to remain on the most effective temperature of fermentable, and improve the production efficiency of biogas, the clear liquid of generation can be discharged by drain pipe;
3, the design of solar panel group not only self can provide electric energy by realization response device, for heating container and motor provide safeguard, and then realize the scavenging effect of environmental protection, first frame plate and the second frame plate can carry out angular adjustment according to the physical location of the sun, simultaneously when sunlight cannot shine directly on the first frame plate and the second frame plate, can primer fluid cylinder pressure, by expansion link, the first frame plate and the second frame plate are risen, improve the collection effciency of sun power;
4, up-flow stirring rake can make sewage flow from the bottom up, improve the purification efficiency of sewage, first stirring rake can make the sewage that just entered and raw material stirring even, the sand be convenient in sewage deposits to bottom, the sand of deposition is flowed into settling pit by unidirectional cinder hole simultaneously, the sand finally precipitated then cleans by the second stirring rake, is discharged by residue outlet.
The utility model structure is simple, practical, not only increases the wastewater purification efficiency of flow lifting type fixed reactor, and provides the operation of motor and heating container by the electric energy that solar panel group produces, environment-protecting clean, improve the production efficiency of biogas.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model one way of life sewage purification flow lifting type fixed reactor;
Fig. 2 is the structural representation of solar panel group in the utility model;
Fig. 3 is the structural representation of precipitation plate in the utility model;
Fig. 4 is the structural representation of grid device in the utility model.
In figure: 1-cylindrical shell; 2-end cap; 3-settling pit; 4-equalizing tank; 5-up-flow pond; 6-biological filter; 7-treating pond; 8-liquid-inlet pipe; 9-residue outlet; 10-raw material inlet pipe; 11-precipitation plate; 12-grid device; 13-bio-tank; 14-heating container; 15-rotating shaft; 16-up-flow stirring rake; 17-first stirring rake; 18-second stirring rake; 19-filtering net; 20-methane outlet pipe; 21-voltage stabilizing tube; 22-drain pipe; 23-retaining clip; 24-motor; 25-first accumulate case; 26-second accumulate case; 27-hydro-cylinder; 28-expansion link; 29-solar panel group; 30-first frame plate; 31-second frame plate; 32-chute; 33-pilot hole; The unidirectional cinder hole of 34-; The unidirectional traverse baffle of 35-; 36-strongback; 37-grid barb; 38-warming plate; 39-coupling shaft.
Embodiment
As shown in Figures 1 to 4, for the utility model one way of life sewage purification flow lifting type fixed reactor, reactor comprises cylindrical shell 1, end cap 2, liquid-inlet pipe 8, residue outlet 9, raw material inlet pipe 10, methane outlet pipe 20 and drain pipe 22, end cap 2 is fixedly connected on the end face of cylindrical shell 1, settling pit 3 is disposed with from the bottom up in cylindrical shell 1, equalizing tank 4, up-flow pond 5, biological filter 6 and treating pond 7, the sidewall of settling pit 3 is provided with residue outlet 9, precipitation plate 11 is provided with between settling pit 3 and equalizing tank 4, precipitation plate 11 is provided with pilot hole 33 and unidirectional cinder hole 34, pilot hole 33 is positioned at the center of precipitation plate 11, pilot hole 33 and rotating shaft 15 match, unidirectional traverse baffle 35 is provided with in unidirectional cinder hole 34, unidirectional traverse baffle 35 is rotatably connected in unidirectional cinder hole 34, when sewage enter equalizing tank 4 mix with raw material time, unidirectional traverse baffle 35 is vertical, settling pit 3 is flowed into after being convenient to sand deposition, when up-flow stirring rake 16 works, unidirectional traverse baffle 35 turns an angle, the sand sinking to bottom is prevented again to be back in equalizing tank 4 by unidirectional cinder hole 34 under the effect of liquid, and then reduce the purification efficiency of sewage, the sidewall of equalizing tank 4 is provided with liquid-inlet pipe 8 and raw material inlet pipe 10, liquid-inlet pipe 8 is fixedly connected on cylindrical shell 1 by grid device 12, strongback 36 is provided with in grid device 12, strongback 36 is evenly distributed with grid barb 37, grid barb 37 direction on adjacent two strongbacks 36 is contrary, grid barb 37 can carry out filtration cleaning to the impurity of larger particles in sewage effectively, unidirectional cinder hole 34 is blocked after preventing larger particles impurity from entering equalizing tank 4, filtering net 19 is provided with between equalizing tank 4 and up-flow pond 5, filtering net 19 can effectively prevent the granule foreign of equalizing tank 4 from entering up-flow pond 5, prevent granule foreign from blocking the passage of biological filter 6, improve the working efficiency of reactor, bio-tank 13 is provided with in biological filter 6, bio-tank 13 is evenly distributed in biological filter 6, the surrounding of biological filter 6 is provided with heating container 14, the sidewall for the treatment of pond 7 is provided with methane outlet pipe 20 and drain pipe 22, drain pipe 22 is fixed on the sidewall of cylindrical shell 1 by retaining clip 23, the sidewall for the treatment of pond 7 is provided with voltage stabilizing tube 21, voltage stabilizing tube 21 can make the biogas pressure in treating pond 7 constant, prevent because biogas pressure constantly rises and cause potential safety hazard.
The end face of end cap 2 is provided with solar panel group 29, solar panel group 29 comprises the first frame plate 30 and the second frame plate 31, first frame plate 30 is rotationally connected the second frame plate 31 by coupling shaft 39, the rotational angle of the first frame plate 30 and the second frame plate 31 is a, the scope of rotational angle a is 0 ゜ ~ 30 ゜, improve the assimilated efficiency of sun power, the medial surface of the first frame plate 30 and the second frame plate 31 is provided with chute 32, chute 32 is fixedly connected with expansion link 28 by limiting plate, solar panel group 29 is by expansion link 28 connecting fluid cylinder pressure 27, hydro-cylinder 27 is positioned at end cap 2, motor 24 is provided with in end cap 2, first accumulate case 25 and the second accumulate case 26, motor 24 is connected with rotating shaft 15, rotating shaft 15 is through in settling pit 3, rotating shaft 15 is fixedly connected with up-flow stirring rake 16, first stirring rake 17 and the second stirring rake 18, up-flow stirring rake 16 is positioned at up-flow pond 5, first stirring rake 17 is positioned at equalizing tank 4, second stirring rake 18 is positioned at settling pit 3, the inwall of cylindrical shell 1 is provided with warming plate 38, it is slower that warming plate 38 can make the temperature in cylindrical shell 1 reduce, reduce the loss of energy, when sewage enters in cylindrical shell 1 by liquid-inlet pipe 8, successively through settling pit 3, equalizing tank 4, up-flow pond 5, biological filter 6 and treating pond 7, fixing organism in sewage is decomposed, and by the metabolism of microorganism by organic pollutant degradation, reach and purify water, the object of decontamination, not only can reduce the discharge of sewage, protection of the environment, and biogas can be produced clean energy is provided, large granular impurity in sewage can filter by grid device 12 effectively, prevent it from entering in equalizing tank 4 and blocking filtering net 19, bio-tank 13 provides a good environment can to the existence of microorganism, simultaneously by the heating of heating container 14, the temperature in bio-tank 13 can be made to remain on the most effective temperature of fermentable, improve the production efficiency of biogas, the clear liquid produced can be discharged by drain pipe 22, the design of solar panel group 29 not only self can provide electric energy by realization response device, for heating container 14 and motor 24 provide safeguard, and then realize the scavenging effect of environmental protection, first frame plate 30 and the second frame plate 31 can carry out angular adjustment according to the physical location of the sun, simultaneously when sunlight cannot shine directly on the first frame plate 30 and the second frame plate 31, can primer fluid cylinder pressure 27, by expansion link 28, first frame plate 30 and the second frame plate 31 are risen, improve the collection effciency of sun power, up-flow stirring rake 16 can make sewage flow from the bottom up, improve the purification efficiency of sewage, first stirring rake 17 can make the sewage that just entered and raw material stirring even, the sand be convenient in sewage deposits to bottom, the sand of deposition is flowed into settling pit 3 by unidirectional cinder hole 34 simultaneously, the sand finally precipitated cleans by the second stirring rake 18, discharged by residue outlet 9.
These are only specific embodiment of the utility model, but technical characteristic of the present utility model is not limited thereto.Any based on the utility model, for realizing substantially identical technique effect, done ground simple change, equivalent replacement or modification etc., be all covered by among protection domain of the present utility model.
Claims (7)
1. one way of life sewage purification flow lifting type fixed reactor, described reactor comprises cylindrical shell, end cap, liquid-inlet pipe, residue outlet, raw material inlet pipe, methane outlet pipe and drain pipe, described end cap is fixedly connected on the end face of described cylindrical shell, it is characterized in that: in described cylindrical shell, be disposed with settling pit from the bottom up, equalizing tank, up-flow pond, biological filter and treating pond, the sidewall of described settling pit is provided with described residue outlet, precipitation plate is provided with between described settling pit and described equalizing tank, the sidewall of described equalizing tank is provided with described liquid-inlet pipe and described raw material inlet pipe, described liquid-inlet pipe is fixedly connected on described cylindrical shell by grid device, bio-tank is provided with in described biological filter, described bio-tank is evenly distributed in described biological filter, the surrounding of described biological filter is provided with heating container, the sidewall of described treating pond is provided with described methane outlet pipe and described drain pipe, described drain pipe is fixed on the sidewall of described cylindrical shell by retaining clip, the end face of described end cap is provided with solar panel group, described solar panel group comprises the first frame plate and the second frame plate, described first frame plate is rotationally connected described second frame plate by coupling shaft, the medial surface of described first frame plate and described second frame plate is provided with chute, described chute is fixedly connected with expansion link by limiting plate, described solar panel group is by described expansion link connecting fluid cylinder pressure, described hydro-cylinder is positioned at described end cap, motor is provided with in described end cap, first accumulate case and the second accumulate case, described motor is connected with rotating shaft, described rotating shaft is through in described settling pit, described rotating shaft is fixedly connected with up-flow stirring rake, first stirring rake and the second stirring rake, described up-flow stirring rake is positioned at described up-flow pond, described first stirring rake is positioned at described equalizing tank, described second stirring rake is positioned at described settling pit.
2. one way of life sewage purification flow lifting type fixed reactor according to claim 1, it is characterized in that: described precipitation plate is provided with pilot hole and unidirectional cinder hole, described pilot hole is positioned at the center of described precipitation plate, described pilot hole and described rotating shaft match, be provided with unidirectional traverse baffle in described unidirectional cinder hole, described unidirectional traverse baffle is rotatably connected in described unidirectional cinder hole.
3. one way of life sewage purification flow lifting type fixed reactor according to claim 1, it is characterized in that: in described grid device, be provided with strongback, described strongback is evenly distributed with grid barb, the described grid barb direction on adjacent two described strongbacks is contrary.
4. one way of life sewage purification flow lifting type fixed reactor according to claim 1, is characterized in that: the inwall of described cylindrical shell is provided with warming plate.
5. one way of life sewage purification flow lifting type fixed reactor according to claim 1, is characterized in that: be provided with filtering net between described equalizing tank and described up-flow pond.
6. one way of life sewage purification flow lifting type fixed reactor according to claim 1, is characterized in that: the sidewall of described treating pond is provided with voltage stabilizing tube.
7. one way of life sewage purification flow lifting type fixed reactor according to claim 1, is characterized in that: the rotational angle of described first frame plate and described second frame plate is a, and the scope of described rotational angle a is 0 ゜ ~ 30 ゜.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736750.0U CN204385019U (en) | 2014-11-28 | 2014-11-28 | One way of life sewage purification flow lifting type fixed reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736750.0U CN204385019U (en) | 2014-11-28 | 2014-11-28 | One way of life sewage purification flow lifting type fixed reactor |
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| Publication Number | Publication Date |
|---|---|
| CN204385019U true CN204385019U (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420736750.0U Expired - Fee Related CN204385019U (en) | 2014-11-28 | 2014-11-28 | One way of life sewage purification flow lifting type fixed reactor |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540833A (en) * | 2015-12-16 | 2016-05-04 | 苏州捷宁模塑有限公司 | Filling material structure for up-flow solid anaerobic reactor |
| CN106422474A (en) * | 2016-12-26 | 2017-02-22 | 重庆宗华厨卫设备有限公司 | Washing wastewater recycling device |
| CN106489874A (en) * | 2016-09-24 | 2017-03-15 | 东莞市青平电子科技有限公司 | Multiaspect cumulative Mosquito killer lamp |
| CN106489875A (en) * | 2016-09-24 | 2017-03-15 | 东莞市青平电子科技有限公司 | Solar mosquito-killing lamp |
| CN106614450A (en) * | 2016-09-24 | 2017-05-10 | 东莞市青平电子科技有限公司 | Insect catching and killing device |
| CN112221239A (en) * | 2020-08-24 | 2021-01-15 | 江苏宏扬机械制造有限公司 | Oil collecting device for petrochemical machinery |
| CN113398820A (en) * | 2020-07-13 | 2021-09-17 | 徐红琴 | Concentration partition mixing flow stirring tank |
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2014
- 2014-11-28 CN CN201420736750.0U patent/CN204385019U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105540833A (en) * | 2015-12-16 | 2016-05-04 | 苏州捷宁模塑有限公司 | Filling material structure for up-flow solid anaerobic reactor |
| CN106489874A (en) * | 2016-09-24 | 2017-03-15 | 东莞市青平电子科技有限公司 | Multiaspect cumulative Mosquito killer lamp |
| CN106489875A (en) * | 2016-09-24 | 2017-03-15 | 东莞市青平电子科技有限公司 | Solar mosquito-killing lamp |
| CN106614450A (en) * | 2016-09-24 | 2017-05-10 | 东莞市青平电子科技有限公司 | Insect catching and killing device |
| CN106422474A (en) * | 2016-12-26 | 2017-02-22 | 重庆宗华厨卫设备有限公司 | Washing wastewater recycling device |
| CN113398820A (en) * | 2020-07-13 | 2021-09-17 | 徐红琴 | Concentration partition mixing flow stirring tank |
| CN113398820B (en) * | 2020-07-13 | 2024-01-30 | 重庆东锋雨锢防水科技有限公司 | Concentration partition mixing flow stirring tank |
| CN112221239A (en) * | 2020-08-24 | 2021-01-15 | 江苏宏扬机械制造有限公司 | Oil collecting device for petrochemical machinery |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20151128 |