CN204656377U - A kind of Novel submerged mixer - Google Patents
A kind of Novel submerged mixer Download PDFInfo
- Publication number
- CN204656377U CN204656377U CN201520105031.3U CN201520105031U CN204656377U CN 204656377 U CN204656377 U CN 204656377U CN 201520105031 U CN201520105031 U CN 201520105031U CN 204656377 U CN204656377 U CN 204656377U
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- impeller
- gear
- paddle
- axle
- transmission device
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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
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of Novel submerged mixer, comprise power input device, cabinet transmission device.Described power input device comprises submersible motor together with motor shaft; Described cabinet transmission device comprises impeller transmission device and paddle transmission device; Described impeller transmission device comprises the first gear, the second gear, the second axle, impeller; Described paddle transmission device comprises casing and paddle.Described paddle is fixed on front shroud, and described front shroud is bolted the back shroud of casing.Described motor shaft is connected in casing, and for driving the rotation of casing, namely formation impeller and paddle revolve round the sun, and described second axle are provided with diving mixer impeller, for realizing impeller rotation.The utility model makes sewage settling zone and large flow rate region convert, and considerably increases stirring region, prevents sludgd deposition, solves asking of hydraulics dead band and sludge settling in sewage-treating reactor.
Description
Technical field
The utility model relates to the sewage disposal key equipment in field of Environment Protection, is specifically related to a kind of wastewater treatment diving mixer.
Background technology
Diving mixer, as a kind of important Sewage treatment mixer tool, is applicable to city and rural sewage treatment field, is widely used in the biochemical reaction tanks such as anaerobic pond, sedimentation basin and aeration tank.Diving mixer is stirred fluid in cesspool, be sunken at the bottom of pond for avoiding the activated sludge being rich in microorganism, make it be suspended in pond always, pond inner fluid must be made to be in motion, General Requirements pond fluid velocity inside is greater than 0.1m/s, and average speed remains on about 0.3m/s, its mixing effect is best.Under this state, microorganism and sewage fully react, and reach mix and blend effect.
In sewage disposal pond there is reaction dead zone in great majority, slowly or hardly flows, cause this regional processing to lose efficacy in the flowing of these regional sewage; Or microorganism is deposited in together, be not diffused in pond, cause other regional processings in pond to lose efficacy, these all make whole diving mixer treatment efficiency decline, and effluent quality worsens.In dead-time problem in diving mixer and pond, the abundant dispersed with stirring mixed problem of microbial sludge is the subject matter that researcher pays close attention to always.
At present, the diving mixer generally used both at home and abroad is single impeller mixer, and namely a submersible motor installs an impeller, the number of blade is generally three or two.Diving mixer is fixed on pool wall or by guide rod and installs near pool wall.This comes with some shortcomings, and is mainly manifested in some fluid in pond and is recycled, namely only have the liquid in diving mixer front to be recycled.In order to reduce dead band, increase stirred fluid volume, general solution is, increase submersible agitating acc power, increase the diameter of agitator arm or diverse location installs multiple diving mixer in pond, this considerably increases spending, improve cost, and equipment volume increases.
Through retrieval, patent of declaring relevant at present has: the diving mixer of band cutting function, application number 201020295726.X; Glass fiber reinforced plastic diving thrust impeller of agitator, application number 200320126437.7.These patents, mainly through improving existing blade material, increasing impeller accessory and improving mixer performance.In addition, for blender and the method for the liquid in mixing pit basin, application number 20078009211.X; A kind of Sewage treatment mixer, application number: ZL201220277048.3, ZL201220286274.8, ZL201220285965.6, when these four patents mainly stir larger pond, the New Measure of the transformation of some the mixer structures taked and mixer system combination, but sometimes or the requirement in large pond can not be met or power consumption is large, improve cost!
Utility model content
Target of the present utility model eliminates the above-mentioned defect of the known diving mixer of prior art, diving mixer structure is improved, this Novel submerged mixer, not by the complicated and auxiliary equipment of costliness, can apply that traditional guide rod is horizontal to be arranged on basin side wall.
The technical solution of the utility model is: a kind of Novel submerged mixer, comprises power input device, cabinet transmission device; Described power input device comprises submersible motor together with motor shaft; Described cabinet transmission device comprises impeller transmission device and paddle transmission device; Described impeller transmission device comprises the first gear, the second gear, the second axle, impeller, described motor shaft is fixedly connected with the first gear by the second key, described first gear is meshed with the second gear, described second gear is fixedly connected on one end of the second axle by the first key, described second axle is spacing on the front shroud of casing by clutch shaft bearing, stop washer, the other end of described second axle is fixedly connected with impeller, and described impeller transmission system is used for the rotation of impeller; Described paddle transmission device comprises casing and paddle, and described paddle is fixed on front shroud, and described front shroud is bolted the back shroud of casing, and described motor shaft is through back shroud and gland; Described back shroud inner side end is provided with internal tooth in one week, and described internal tooth is meshed with the second gear, and described motor shaft by the rotation of drive first gear, the second gear and internal tooth, and then drives the rotation of paddle on casing, forms impeller and paddle revolution.
Further, described diving mixer revolution rotating speed n
3≤ 150r/min, diving mixer impeller rotational velocity n
2>=500r/min.
Further, described submersible motor is dry type motor.
Further, described motor shaft is provided with the first mechanical seal with the contact surface of back shroud, described impeller hub is provided with the second mechanical seal, be provided with the 3rd mechanical seal between described submersible motor and cabinet transmission device; On described second axle, clutch shaft bearing is provided with reinforced seal near the side of impeller.
Further, described paddle is 1 ~ 2, and the length of described paddle is equal to, or greater than described motor shaft; Described impeller hub is fixedly mounted on the second axle by the second locking nut, installs wheel hub protecgulum outside described impeller hub, and described blade is welded on described impeller hub with fixing setting angle, and described blade is 2 ~ 3 aerofoil profile three dimendional blades.
Further, described front shroud has plug.
Further, second axle at described second place, gear side installs circlip for hole, and the axle head of described motor shaft is provided with the first locking nut.
The utility model has following technological merit:
(1) revolution of diving mixer and the rotation of rotation and mixer, realize the flowing of the axial advance in sequential, radial diffusion in whole space, becomes a kind of impeller with agitating function.Sewage settling zone and large flow rate region are converted, considerably increases stirring region, prevent sludgd deposition, solve hydraulics dead band in sewage-treating reactor, sludge settling problem.
(2) paddle be arranged so that the fluid inside submersible agitating machine enclosure also take part in stirring, decrease dead band herein.
(3) motor and mixer cabinet one, compact conformation, still can use original guide-bar mechanism, convenient installation.
(4) impeller and screw are easy to change.
(5) diving mixer impeller blade is aerofoil profile three dimendional blade, has the plug-flow agitating function of very strong axial advance, radial diffusion during rotation.
Accompanying drawing explanation
Fig. 1 is the cross-sectional schematic of Novel submerged mixer embodiment 1;
Fig. 2 is Novel submerged mixer revolution spinning motion track schematic diagram;
Fig. 3 is the cross-sectional schematic of Novel submerged mixer embodiment 2;
Fig. 4 is the cross-sectional schematic of Novel submerged mixer embodiment 3.
In figure: 1 impeller, 2 first mechanical seals, 3 paddles, 4 first locking nuts, 5 front shrouds, 6 first gears, 7 back shrouds, 8 second mechanical seals, 9 motor shafts, 10 submersible motors, 11 wheel hub protecgulums, 12 second locking nuts, 13 blades, 14 reinforced seals, 15 clutch shaft bearings, 16 second gears, 17 first keys, 18 second axles, 19 second keys, 20 triple bonds, 21 casings, 22 revolution motion tracks, 23 glands, 24 the 3rd mechanical seals, 25 internal tooths, 26 quadruple linkages, 27 second bearings, 28 connecting rods, 29 the 3rd locking nuts.
Detailed description of the invention
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, concrete condition the concrete meaning of above-mentioned term in the utility model can be understood.
The course of work of the present utility model is: the first gear 6 is contained on the motor shaft 9 of submersible motor 10 by the second key 19, motor shaft 9 drives the first gear 6 to rotate, second gear 16 is meshed with the first gear 6, second gear 16 is contained on the second axle 18 by the first key 17, impeller 1 is arranged on the second axle 18, and the first gear 6 drives the second gear 16 to rotate, and the second gear 16 drives the second axle 18 to rotate, second axle 18 impeller 1 rotates, and makes impeller 1 rotation.Meanwhile, rear cover of box plate 7 is contained on motor shaft 9 by triple bond 20, and whole like this casing and impeller 1 can rotate along with the rotation of motor shaft 9, and rotating speed is identical, realizes the revolution of impeller 1.Paddle 3 is fixedly mounted on the outside of diving mixer front shroud 5 projection, along with whole submersible agitating machine enclosure rotates.Therefore the rotating speed of paddle 3 is consistent with diving mixer revolution speed.
If motor crankshaft 1 rotating speed is n
1, impeller rotation rotating speed and gear 2 rotating speed are n
2, the rotating speed of diving mixer revolution speed and paddle is n
3.First tooth radius is r
1, the second tooth radius is r
2, the radius of submersible agitating box body internal tooth is r
3.For the special function that this diving mixer will realize, learn by experiment, we wish that diving mixer revolution speed is slow, and rotational velocity is large, i.e. diving mixer revolution rotating speed n
3≤ 150r/min, diving mixer impeller rotational velocity n
2>=500r/min.R is determined in principle at this
1, r
2, r
3between relation.The impeller 1 of diving mixer rotates around self the second axle 18, and whole impeller 1 and casing will rotate round diving mixer motor crankshaft simultaneously.So not only define the rotation of impeller 1 but also define revolution.Because diving mixer impeller blade 13 is aerofoil profile three dimendional blades, there is very strong axial advance and radial diffusion function, diving mixer impeller 1 spatially achieves and rotates around motor shaft revolution, rotate around self axle rotation simultaneously, coordinate actual revolution and the rotation speed requirements of rotation, this achieve sequential, axial advance spatially and radial diffusion, be more beneficial to pond inner fluid and advance and stir, in case activated sludge precipitation, considerably increase stirring region, decrease dead band.
Meanwhile, described paddle 3 is 1 ~ 2, and the length of described paddle 3 equals or slightly larger than the distance between described front shroud 5 sidewall and motor shaft 9, described blade 13 is 2 ~ 3 aerofoil profile three dimendional blades.Make paddle 3 along with whole submersible agitating box body like this, rotate around motor shaft 9, stir the fluid of diving mixer revolution track circle inside, while reducing fluid dead band herein, also help axial advance, strengthen the plug-flow agitating function of radial diffusion.
Embodiment 1
This Novel submerged mixer is primarily of submersible motor 10, mechanical seal, o type ring recess, motor shaft 9, first gear 6, locking nut, the second gear 16, second axle 18, stop washer, bearing, reinforced seal 14, plug, impeller 1, the compositions such as paddle 3, front shroud 5, back shroud 7.Consider that this Novel submerged mixer power is comparatively large, therefore submersible motor 10 preferably chooses dry type motor.Motor shaft is speciality axle, and back shroud 7 is fixedly installed togather by triple bond 20 and motor shaft 9, and the first gear 6 is fixed together with motor shaft 9 by the second key 19.First gear 6 engages with the second gear 16, and the second gear 16 is fixed together by the first key 17 and the second axle 18.Inject oil in gear housing, gear is lubricated.Impeller hub is fixedly mounted on the second axle 18 by the second locking nut 12, and blade 13 is welded on impeller hub with fixing setting angle.At impeller hub, wheel hub protecgulum 11 is installed outward and enters into wheel hub inside to prevent water, in case impeller nut comes off by water friction.Paddle 3 is directly screwed on front shroud 5 by screw simultaneously.In order to avoid interfering, the blade of impeller 1 is generally 2-3 sheet; Paddle 3 is generally 1-2 sheet.In order to protect motor, at motor, outer mechanical seal is installed.Also will consider sealing in whole submersible agitating box body, back shroud 7 opens O type ring recess, mounting O-shaped rings; The first mechanical seal 2 is installed and mounting framework sealing 14 before clutch shaft bearing 15 by impeller 1 place.In order to prevent the first gear 6 play back and forth, the first locking nut 4 is installed on the top of motor shaft 9.In order to prevent the second axle 18 from collecting together, after the clutch shaft bearing 15 of the second axle 18, stop washer and locking nut are installed respectively.In order to prevent the second gear 16 from moving, in the second gear 16 side, circlip for hole is installed.In order to check whether submersible agitating machine enclosure seals, generally also on the cover board plug to be opened.Because diving mixer entirety rotates around motor shaft 9, impeller 1 rotates around the second axle 18 simultaneously, easily make with motor shaft 9 as the center of circle, vertical range to the second axle 18 is that the cylinder inner fluid of radius forms dead band, so install paddle 3 inside front shroud 5, the length of paddle 3 is slightly equal to or greater than the distance between front shroud 5 sidewall and motor shaft 9, the weight of diving mixer front shroud 5, back shroud 7, impeller 1 is all born by the middle-end of axle, and the weight of gear is born by spindle nose.
General, we wish that diving mixer revolution speed is slow, and rotational velocity is large.Therefore the diameter of the first gear 6 is greater than the second gear 16.Select low speed heavy-duty motor.If motor crankshaft 1 rotating speed is n
1, impeller rotation rotating speed and gear 2 rotating speed are n
2, the rotating speed of diving mixer revolution speed and paddle is n
3, there is following relation in the relation namely between three rotating speeds:
Whole submersible agitating machine enclosure rotary speed can not be too high, otherwise can vibrate, damage, and affects whole machine performance.General, motor speed is lower than n
1≤ 150r/min, the radius scale of the first gear 6 and the second gear 16 is
the operation of whole diving mixer stability and safety can be guaranteed like this.
Embodiment 2
This Novel submerged mixer is primarily of submersible motor 10, mechanical seal, motor shaft 9, first gear 6, locking nut, the second gear 16, second axle 18, stop washer, bearing, reinforced seal 14, plug, impeller 1, the compositions such as paddle 3, front shroud 5, gland 23, back shroud 7.Consider that this Novel submerged mixer power is comparatively large, therefore submersible motor 10 preferably chooses dry type motor.Motor shaft is speciality axle, and the first gear 6 is fixed together with motor shaft 9 by the second key 19.Inject oil in gear housing, gear is lubricated.Impeller hub is fixedly mounted on the second axle 18 by the second locking nut 12, and blade 13 is welded on impeller hub with fixing setting angle.At impeller hub, wheel hub protecgulum 11 is installed outward and enters into wheel hub inside to prevent water, in case impeller nut comes off by water friction.Paddle 3 is directly screwed on front shroud 5 by screw simultaneously.Back shroud 7 circle inside rotary end surface is provided with internal tooth 25.Back shroud 7 and gland 23 are directly enclosed within motor shaft 9, and motor shaft 9 has axle sleeve, to reduce the wearing and tearing of axle.First gear 6 is contained on motor shaft 9 by the second key 19, motor shaft 9 drives the first gear 6 to rotate, second gear 16 is meshed with the first gear 6, second gear 16 is contained on the second axle 18 by the first key 17, impeller 1 is arranged on the second axle 18, and the first gear 6 drives the second gear 16 to rotate, and the second gear 16 drive second axle 18 rotates, second axle 18 impeller 1 rotates, and makes impeller 1 autobiography.Rear cover of box plate 7 is enclosed within motor arbor, and motor shaft has axle sleeve, to reduce the wearing and tearing of axle, facilitates the replacing of part simultaneously.Back shroud 7 is connected by bolt with gland 23, and mechanical seal can be installed, with leakage-preventing in back shroud 7 and shaft connection place.Second gear 16 is meshed with toothed wheel box cover plate internal tooth 25 simultaneously, and the second gear 16 drives whole casing to rotate, and casing will rotate round motor shaft, realizes the revolution of agitator arm 1 and casing.
General, we wish that diving mixer revolution speed is slow, and rotational velocity is more greatly.If motor crankshaft 1 rotating speed is n
1, impeller rotation rotating speed and gear 2 rotating speed are n
2, the rotating speed of diving mixer revolution speed and paddle is n
3, there is following relation in the relation namely between three rotating speeds:
In like manner, whole submersible agitating machine enclosure rotary speed can not be too high, otherwise can vibrate, damage, and affects whole machine performance.General, motor speed is higher than in n
1>=500r/min, n
2>=500r/min, n
3≤ 150r/min, the radius scale of the first gear 6 and the second gear 16 is
the operation of whole diving mixer stability and safety can be guaranteed like this.
Embodiment 3
This Novel submerged mixer is primarily of submersible motor 10, mechanical seal, motor shaft 9, first gear 6, locking nut, the second gear 16, second axle 18, stop washer, bearing, reinforced seal 14, plug, impeller 1, the compositions such as paddle 3, front shroud 5, gland 23, back shroud 7.Consider that this Novel submerged mixer power is comparatively large, therefore submersible motor 10 preferably chooses dry type motor.Motor shaft is speciality axle, and the first gear 6 is fixed together with motor shaft 9 by the second key 19.Inject oil in gear housing, gear is lubricated.Impeller hub is fixedly mounted on the second axle 18 by the second locking nut 12, and blade is welded on impeller hub with fixing setting angle.At impeller hub, wheel hub protecgulum is installed outward and enters into wheel hub inside to prevent water, in case impeller nut comes off by water friction.Paddle 3 is directly screwed on front shroud 5 by screw simultaneously.Back shroud 7 and gland 23 are directly enclosed within motor shaft 9, and motor shaft 9 has axle sleeve, to reduce the wearing and tearing of axle.Back shroud 7 is connected by bolt with gland 23, and the 3rd mechanical seal 24 can be installed, with leakage-preventing in back shroud 7 and shaft connection place.First gear 6 is contained on motor shaft 9 by the second key 19, motor shaft 9 drives the first gear 6 to rotate, second gear 16 is meshed with the first gear 6, second gear 16 is contained on the second axle 18 by the first key 17, impeller 1 is arranged on the second axle 18, and the first gear 6 drives the second gear 16 to rotate, and the second gear 16 drives the second axle 18 to rotate, second axle 18 impeller 1 rotates, and makes impeller 1 rotation.Connecting rod 28 is connected with motor shaft 9 by quadruple linkage 26, rotates with identical rotating speed with motor shaft 9, realizes the rotation of whole submersible agitating box body, realize the revolution of impeller 1 with this.Second axle 18 is through connecting rod 28 simultaneously, and connected by the second bearing 27 therebetween, the second axle 18 freely can rotate around self axle.Other with connecting rod 28 at the second axle 18, the 3rd locking nut 29 can be installed and be fixed spacing, in case connecting rod 28 is collected together.
General, we wish that diving mixer revolution speed is slow, and rotational velocity is large.Therefore the diameter of the first gear 6 is greater than the second gear 16.Select low speed heavy-duty motor.If motor crankshaft 1 rotating speed is n
1, impeller rotation rotating speed and gear 2 rotating speed are n
2, the rotating speed of diving mixer revolution speed and paddle is n
3, there is following relation in the relation namely between three rotating speeds:
Whole submersible agitating machine enclosure rotary speed can not be too high, otherwise can vibrate, damage, and affects whole machine performance.General, motor speed is lower than n
1≤ 150r/min, the radius scale of the first gear 6 and the second gear 16 is
the operation of whole diving mixer stability and safety can be guaranteed like this.
Above-mentioned example of executing should be understood and be only not used in restriction scope of the present utility model for illustration of the utility model, after having read the utility model, the amendment of those skilled in the art to the various equivalent form of value of the present utility model has all fallen within the application's claims limited range.
Claims (7)
1. a Novel submerged mixer, is characterized in that, comprises power input device, cabinet transmission device;
Described power input device comprises submersible motor (10) together with motor shaft (9);
Described cabinet transmission device comprises impeller transmission device and paddle transmission device;
Described impeller transmission device comprises the first gear (6), second gear (16), second axle (18), impeller (1), described motor shaft (9) is fixedly connected with the first gear (6) by the second key (19), described first gear (6) is meshed with the second gear (16), described second gear (16) is fixedly connected on one end of the second axle (18) by the first key (17), described second axle (18) is by clutch shaft bearing (15), on the spacing front shroud at casing of stop washer (5), the other end of described second axle (18) is fixedly connected with impeller (1), described impeller transmission system is used for the rotation of impeller (1),
Described paddle transmission device comprises casing and paddle (3), described paddle (3) is fixed on front shroud (5), described front shroud (5) is bolted the back shroud (7) of casing, and described motor shaft (9) is through back shroud (7) and gland (23); Described back shroud (7) inner side end is provided with internal tooth (25) for one week, described internal tooth (25) is meshed with the second gear (16), described motor shaft (9) is by the rotation of drive first gear (6), the second gear (16) and internal tooth (25), and then the rotation of paddle (3) on drive casing, form impeller (1) and revolve round the sun with paddle (3).
2. a kind of Novel submerged mixer according to claim 1, is characterized in that, described diving mixer revolution rotating speed n
3≤ 150r/min, diving mixer impeller rotational velocity n
2>=500r/min.
3. a kind of Novel submerged mixer according to claim 1, is characterized in that, described submersible motor (10) is dry type motor.
4. a kind of Novel submerged mixer according to claim 1, it is characterized in that, the contact surface of described motor shaft (9) same to back shroud (7) is provided with the first mechanical seal (24), described impeller hub is provided with the second mechanical seal (2), between described submersible motor (10) and cabinet transmission device, be provided with the 3rd mechanical seal (8); The upper clutch shaft bearing (15) of described second axle (18) is provided with reinforced seal (14) near the side of impeller (1).
5. a kind of Novel submerged mixer according to claim 1, it is characterized in that, described paddle (3) is 1 ~ 2, and the length of described paddle (3) equals or slightly larger than the distance between described front shroud (5) sidewall and motor shaft (9); Described impeller hub is fixedly mounted on the second axle (18) by the second locking nut (12), wheel hub protecgulum (11) is installed outside described impeller hub, blade (13) is welded on described impeller hub with fixing setting angle, and described blade (13) is 2 ~ 3 aerofoil profile three dimendional blades.
6. a kind of Novel submerged mixer according to claim 1, is characterized in that, (5) have plug to described front shroud.
7. a kind of Novel submerged mixer according to claim 1, it is characterized in that, second axle (18) at described second gear (16) place, side installs circlip for hole, and the axle head of described motor shaft (9) is provided with the first locking nut (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520105031.3U CN204656377U (en) | 2015-02-12 | 2015-02-12 | A kind of Novel submerged mixer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520105031.3U CN204656377U (en) | 2015-02-12 | 2015-02-12 | A kind of Novel submerged mixer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204656377U true CN204656377U (en) | 2015-09-23 |
Family
ID=54126815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520105031.3U Expired - Fee Related CN204656377U (en) | 2015-02-12 | 2015-02-12 | A kind of Novel submerged mixer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204656377U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113368751A (en) * | 2021-06-21 | 2021-09-10 | 江苏大学 | T-shaped submersible mixer |
-
2015
- 2015-02-12 CN CN201520105031.3U patent/CN204656377U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113368751A (en) * | 2021-06-21 | 2021-09-10 | 江苏大学 | T-shaped submersible mixer |
| CN113368751B (en) * | 2021-06-21 | 2022-11-18 | 江苏大学 | T-shaped submersible mixer |
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150923 Termination date: 20170212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |