CN111762903A - Self-moving aeration device for sewage treatment - Google Patents

Self-moving aeration device for sewage treatment Download PDF

Info

Publication number
CN111762903A
CN111762903A CN202010678198.4A CN202010678198A CN111762903A CN 111762903 A CN111762903 A CN 111762903A CN 202010678198 A CN202010678198 A CN 202010678198A CN 111762903 A CN111762903 A CN 111762903A
Authority
CN
China
Prior art keywords
self
transmission shaft
aeration
sewage treatment
driving
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.)
Withdrawn
Application number
CN202010678198.4A
Other languages
Chinese (zh)
Inventor
范兆礼
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202010678198.4A priority Critical patent/CN111762903A/en
Publication of CN111762903A publication Critical patent/CN111762903A/en
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F7/00Aeration of stretches of water
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00Treatment of water, waste water, or sewage
    • C02F1/001Processes for the treatment of water whereby the filtration technique is of importance
    • CCHEMISTRY; METALLURGY
    • C02TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02FTREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2201/00Apparatus for treatment of water, waste water or sewage
    • C02F2201/002Construction details of the apparatus
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02WCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00Technologies for wastewater treatment
    • Y02W10/10Biological treatment of water, waste water, or sewage

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)

Abstract

The invention is suitable for the technical field of sewage treatment, and provides a self-moving aeration device for sewage treatment; the method comprises the following steps: a float; the aeration pipe is fixedly arranged at the bottom of the floating body; the aerator pipe is provided with an air distribution piece, the air distribution piece comprises an installation rod arranged in the center, helical blades are arranged on the outer side of the installation rod in an array mode, the installation rod is externally connected with input high-pressure air, the interior of the installation rod is communicated with the interior of the helical blades, and a plurality of air outlet holes are formed in two sides of the helical blades; the liquid spraying part is sleeved at the water outlet of the aeration pipe and arranged in a reciprocating vibration mode; and the driving blade is arranged on the aeration pipe in a self-rotating manner. The invention realizes mobile aeration and improves the aeration effect.

Description

Self-moving aeration device for sewage treatment
Technical Field
The invention relates to the technical field of sewage treatment, in particular to a self-moving aeration device for sewage treatment.
Background
Sewage treatment: the sewage is purified to reach the water quality requirement of being discharged into a certain water body or being reused. Sewage treatment is widely applied to various fields such as buildings, agriculture, traffic, energy, petrifaction, environmental protection, urban landscape, medical treatment, catering and the like, and is increasingly used in daily life of common people.
An aeration tank is required to be arranged for aeration treatment in the sewage treatment process, and the aeration device in the prior art is usually fixedly arranged in the sewage tank and cannot move, so that the aeration treatment effect is influenced, and the technical problem is solved by providing the self-moving aeration device for sewage treatment.
Disclosure of Invention
The invention aims to provide a self-moving aeration device for sewage treatment, which solves the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a self-moving aeration apparatus for sewage treatment, comprising: a float;
the aeration pipe is fixedly arranged at the bottom of the floating body;
the aerator pipe is provided with an air distribution piece, the air distribution piece comprises an installation rod arranged in the center, helical blades are arranged on the outer side of the installation rod in an array mode, the installation rod is externally connected with input high-pressure air, the interior of the installation rod is communicated with the interior of the helical blades, and a plurality of air outlet holes are formed in two sides of the helical blades;
the liquid spraying part is sleeved at the water outlet of the aeration pipe and arranged in a reciprocating vibration mode; and the number of the first and second groups,
the driving blade is arranged on the aeration pipe in a self-rotating manner.
As a further scheme of the invention: the input end of the aeration pipe is provided with a transfusion pump.
As a still further scheme of the invention: the output end of the aeration pipe is provided with a filter screen.
As a still further scheme of the invention: the floating body is also fixedly provided with an air delivery pump, and the output end of the air delivery pump is communicated with the input end of the air distribution piece through a pipeline.
As a still further scheme of the invention: the aeration pipe is characterized in that axial flow blades are further arranged in the aeration pipe, an A transmission shaft is arranged in the center of each axial flow blade, the A transmission shaft penetrates through the aeration pipe, and the aeration pipe is fixedly arranged at the other end of the A transmission shaft.
As a still further scheme of the invention: and a reciprocating mechanism for driving the liquid spraying piece to reciprocate is arranged in the aeration pipe.
As a still further scheme of the invention: the reciprocating mechanism comprises a mounting ring, a connecting rod, an elastic piece, a driving disc, a driving rod and a transmission shaft B; the connecting rod is fixedly arranged on the liquid spraying part, penetrates through the mounting ring and is elastically arranged on the connecting rod, the upper end of the connecting rod is symmetrically provided with a bulge, the upper end of the connecting rod is also abutted with a driving rod, the driving rod is symmetrically arranged at the bottom of a driving disc, and the driving disc is arranged in the transmission shaft B in a self-transmission manner; the protrusion is disposed on a rotation track of the driving lever.
As a still further scheme of the invention: the aerator is characterized in that a transmission assembly is arranged between the transmission shaft A and the driving disc, specifically, the transmission assembly comprises a transmission shaft B which is rotatably arranged in the aeration pipe, the upper end of the transmission shaft B is in transmission connection with the transmission shaft A, and the driving disc is fixedly arranged at the lower end of the transmission shaft B. .
As a still further scheme of the invention: a bevel gear A is fixedly sleeved on the outer side of the transmission shaft A and meshed with a bevel gear B at the upper end of the transmission shaft B.
As a still further scheme of the invention: the liquid spraying part is arranged in a convex mode, and through holes are formed in the liquid spraying part in an array mode.
Compared with the prior art, the invention has the beneficial effects that: the sewage enters the interior of the aeration pipe, and when passing through the air distribution piece, the sewage rotates in the interior of the aeration pipe under the guidance of the helical blade, and meanwhile, the air is sprayed out from the air outlet holes on the helical blade to be mixed with the flowing sewage, so that the mixing flow of the sewage and the air is increased, and the amount of bubbles in the sewage is increased; meanwhile, the driving blades are arranged to enable the aeration tank to move in the sewage tank, so that the aeration is uniform; the liquid spraying part vibrates up and down in a reciprocating manner, so that the aerated sewage is widely added into the sewage pool, and the aerated sewage can be uniformly contacted with the sewage; the invention realizes mobile aeration and improves the aeration effect.
Drawings
FIG. 1 is a schematic view showing the structure of a self-moving aeration apparatus for sewage treatment.
Fig. 2 is a schematic structural diagram of an air distribution member in the self-moving aeration device for sewage treatment.
FIG. 3 is a schematic view showing the structure of a liquid spraying member in the self-moving aeration apparatus for sewage treatment.
In the figure: the device comprises a floating body-1, an air conveying pump-2, an aeration pipe-3, an air distribution piece-4, an infusion pump-5, a filter screen-6, an A transmission shaft-7, an axial flow blade-8, a driving blade-9, an A bevel gear-10, a B bevel gear-11, a B transmission shaft-12, a driving disc-13, a driving rod-14, a bulge-15, a connecting rod-16, an elastic piece-17, a mounting ring-18, a liquid spraying piece-19, a mounting rod-21 and a spiral blade-22.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, the structure of a self-moving aeration device for sewage treatment according to an embodiment of the present invention includes: a floating body 1;
the aeration pipe 3 is fixedly arranged at the bottom of the floating body 1;
the aerator pipe 3 is provided with an air distribution piece 4, the air distribution piece 4 comprises an installation rod 21 arranged in the center, helical blades 22 are arranged on the outer side array of the installation rod 21, the installation rod 21 is externally connected with input high-pressure air, the interior of the installation rod 21 is communicated with the interior of the helical blades 22, and a plurality of air outlet holes are formed in two sides of each helical blade 22;
the liquid spraying part 19 is sleeved at the water outlet of the aeration pipe 3 and is arranged in a reciprocating vibration mode; and the number of the first and second groups,
the driving blade 9 is arranged on the aeration pipe 3 in a rotating way.
In the embodiment of the invention, sewage enters the aeration pipe 3, and when passing through the air distribution piece 4, the sewage rotates in the aeration pipe 3 under the guidance of the helical blade 22, and meanwhile, air is sprayed out from the air outlet holes on the helical blade 22 to be mixed with the flowing sewage, so that the mixing flow of the sewage and the air is increased, and the amount of bubbles in the sewage is increased; meanwhile, the driving blades 9 are arranged to enable the aeration device to move in the sewage tank, so that the aeration is uniform; the liquid spraying piece 19 vibrates up and down in a reciprocating manner, so that the aerated sewage is widely added into the sewage pool, and the aerated sewage can be uniformly contacted with the sewage; the invention realizes mobile aeration and improves the aeration effect.
In order to suck sewage into the aeration pipe 3, an infusion pump 5 is provided at the input end of the aeration pipe 3, and the infusion pump 5 is provided to power the sewage flow.
In order to protect the internal equipment of the aeration pipe 3, the output end of the aeration pipe 3 is provided with a filter screen 6, and the filter screen 6 is used for filtering sewage.
The floating body 1 is also fixedly provided with an air delivery pump 2, the output end of the air delivery pump 2 is communicated with the input end of the air distribution piece 4 through a pipeline, and the air distribution piece 4 is further provided with high-pressure air.
In order to provide power for the rotation of the driving blade 9, an axial flow blade 8 is further arranged inside the aeration pipe 3, an a transmission shaft 7 is arranged at the center position of the axial flow blade 8, the a transmission shaft 7 penetrates through the aeration pipe 3, and the aeration pipe 3 is fixedly installed at the other end of the a transmission shaft 7.
Specifically, the axial flow blades 8 rotate under the pushing of sewage, the axial flow blades 8 drive the driving blades 9 to rotate through the A transmission shaft 7, power is provided for the driving blades 9 to rotate, the whole sewage treatment device can move automatically, and accordingly aeration treatment can be performed on the whole sewage pool.
A reciprocating mechanism for driving the liquid spraying piece 19 to reciprocate is further arranged in the aeration pipe 3. Specifically, the reciprocating mechanism comprises a mounting ring 18, a connecting rod 16, an elastic piece 17, a driving disc 13, a driving rod 14 and a B transmission shaft 12; the connecting rod 16 is fixedly arranged on the liquid spraying part 19, the connecting rod 16 penetrates through the mounting ring 18 and is elastically arranged on the connecting rod 16, the upper end of the connecting rod 16 is symmetrically provided with the protrusions 15, the upper end of the connecting rod 16 is also abutted with the driving rod 14, the driving rod 14 is symmetrically arranged at the bottom of the driving disk 13, and the driving disk 13 is arranged in the B transmission shaft 12 in a self-transmission manner; the boss 15 is provided on the rotation locus of the drive lever 14. The driving plate 13 rotates to drive the driving rod 14 to intermittently abut against the protrusions 15, and the protrusions 15 drive the connecting rod 16 to vibrate back and forth, so that the liquid spraying member 19 vibrates back and forth.
In order to realize the rotation of the driving disc 13, a transmission assembly is arranged between the a transmission shaft 7 and the driving disc 13, specifically, the transmission assembly comprises a B transmission shaft 12 rotatably arranged inside the aeration pipe 3, the upper end of the B transmission shaft 12 is in transmission connection with the a transmission shaft 7, the driving disc 13 is fixedly arranged at the lower end of the B transmission shaft 12, and the rotation of the a transmission shaft 7 is transmitted to the driving disc 13 through the B transmission shaft 12 by the arrangement, so that the self-rotation of the driving disc 13 is realized.
An A bevel gear 10 is fixedly sleeved on the outer side of the A transmission shaft 7, the A bevel gear 10 is meshed with a B bevel gear 11 at the upper end of a B transmission shaft 12, and the arrangement further realizes transmission of the A transmission shaft 7 to the B transmission shaft 12.
In order to realize the elastic installation of the connecting rod 16 on the mounting ring 18, an elastic member 17 is sleeved outside the mounting ring 18, and the upper end and the lower end of the elastic member 17 are fixedly installed on the mounting ring 18 and the connecting rod 16 respectively. This arrangement in turn enables the connecting rod 16 to be resiliently mounted on the mounting ring 18. The mounting ring 18 is fixedly mounted inside the aeration pipe 3 through a support rod.
In order to spread the range of liquid ejected from liquid ejecting member 19, liquid ejecting member 19 is convex, and liquid ejecting member 19 is provided with through holes in an array; the outward convex arrangement further enlarges the liquid spraying range and improves the aeration effect.
The axial flow blades 8 are arranged on the reduced section of the aeration pipe 3, the sewage speed of the reduced section is increased, and then stronger power is provided for the rotation of the axial flow blades 8.
The working principle of the invention is as follows: the infusion pump 5 is electrified to work, sewage is sucked into the aeration pipe 3, meanwhile, the filter screen 6 filters the sewage to protect equipment inside the aeration pipe 3, the sewage enters the aeration pipe 3 and rotates inside the aeration pipe 3 under the guidance of the spiral blade 22 when passing through the air distribution piece 4, and meanwhile, air is sprayed out of the air outlet hole in the spiral blade 22 to be mixed with the flowing sewage, so that the mixing flow of the sewage and the air is increased, and the amount of bubbles in the sewage is increased; when sewage enters the reduced section of the aeration pipe 3, the axial flow blades 8 are driven to rotate, and the axial flow blades 8 drive the driving blades 9 to rotate through the A transmission shaft 7, so that power is provided for the movement of the aerator, and aeration is uniform; the A transmission shaft 7 drives the B transmission shaft 12 to rotate through an A bevel gear 10 and a B bevel gear 11, the B transmission shaft 12 drives two driving rods 14 on a driving disc 13 to rotate, the driving rods 14 intermittently abut against the protrusions 15, and then the liquid spraying piece 19 is vibrated up and down in a reciprocating mode through a connecting rod 16 and the liquid spraying piece 19, so that aerated sewage is widely added into the sewage pool, and the aerated sewage can be uniformly contacted with the sewage; the invention realizes mobile aeration, increases the aeration range and improves the aeration effect.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "top", "bottom", "inner", "outer", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus are not to be construed as limiting the present invention. Furthermore, the terms "a", "B", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, in the description of the present invention, "a plurality" means two or more unless otherwise specified. A feature defined as "a," "B," etc. may explicitly or implicitly include one or more of that feature.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (10)

1. A self-moving aeration device for sewage treatment is characterized by comprising: a float (1);
the aeration pipe (3) is fixedly arranged at the bottom of the floating body (1);
the aerator pipe (3) is provided with an air distribution piece (4), the air distribution piece (4) comprises an installation rod (21) arranged in the center, helical blades (22) are arranged on the outer side array of the installation rod (21), the installation rod (21) is externally connected with input high-pressure air, the inside of the installation rod (21) is communicated with the inside of the helical blades (22), and a plurality of air outlet holes are formed in two sides of each helical blade (22);
the liquid spraying part (19) is sleeved at the water outlet of the aeration pipe (3) and is arranged in a reciprocating vibration mode; and the number of the first and second groups,
the driving blade (9) is arranged on the aeration pipe (3) in a rotating way.
2. Self-moving aerator for sewage treatment according to claim 1, characterised in that the input of the aerator pipe (3) is provided with an infusion pump (5).
3. Self-moving aerator for sewage treatment according to claim 2, characterised in that the output of the aerator pipe (3) is provided with a filter screen (6).
4. The self-moving aeration device for sewage treatment according to claim 1, wherein the floating body (1) is further fixedly provided with an air delivery pump (2), and the output end of the air delivery pump (2) is communicated with the input end of the air distribution member (4) through a pipeline.
5. The self-moving aeration device for sewage treatment according to claim 1, wherein an axial flow blade (8) is further disposed inside the aeration pipe (3), an A transmission shaft (7) is disposed at the center of the axial flow blade (8), the A transmission shaft (7) is disposed through the aeration pipe (3), and the aeration pipe (3) is fixedly mounted at the other end of the A transmission shaft (7).
6. The self-moving aeration device for sewage treatment according to claim 5, wherein a reciprocating mechanism for driving the liquid spray member (19) to reciprocate is further provided inside the aeration tube (3).
7. A self-moving aerator for sewage treatment according to claim 6, characterised in that said reciprocating means comprise a mounting ring (18), a connecting rod (16), elastic means (17), a driving disc (13), a driving rod (14) and a B-drive shaft (12); the connecting rod (16) is fixedly arranged on the liquid spraying part (19), the connecting rod (16) penetrates through the mounting ring (18) and is elastically arranged on the connecting rod (16), the upper end of the connecting rod (16) is symmetrically provided with a bulge (15), the upper end of the connecting rod (16) is also abutted with a driving rod (14), the driving rod (14) is symmetrically arranged at the bottom of the driving disc (13), and the driving disc (13) is arranged in the B transmission shaft (12) in a self-transmission manner; the projection (15) is arranged on the rotation track of the driving rod (14).
8. The self-moving aerator for sewage treatment according to claim 7, characterized in that a transmission assembly is arranged between the A transmission shaft (7) and the driving plate (13), specifically, the transmission assembly comprises a B transmission shaft (12) rotatably arranged inside the aerator pipe (3), the upper end of the B transmission shaft (12) is in transmission connection with the A transmission shaft (7), and the driving plate (13) is fixedly arranged at the lower end of the B transmission shaft (12).
9. The self-moving aerator for sewage treatment as claimed in claim 8, wherein an A bevel gear (10) is fixedly sleeved outside the A transmission shaft (7), and the A bevel gear (10) is meshed with a B bevel gear (11) at the upper end of a B transmission shaft (12).
10. A self-moving aeration device for wastewater treatment according to any one of claims 1 to 9, wherein said liquid jet member (19) is provided with a convex shape, and through holes are formed in the liquid jet member (19) in an array.
CN202010678198.4A 2020-07-15 2020-07-15 Self-moving aeration device for sewage treatment Withdrawn CN111762903A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010678198.4A CN111762903A (en) 2020-07-15 2020-07-15 Self-moving aeration device for sewage treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010678198.4A CN111762903A (en) 2020-07-15 2020-07-15 Self-moving aeration device for sewage treatment

Publications (1)

Publication Number Publication Date
CN111762903A true CN111762903A (en) 2020-10-13

Family

ID=72726484

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010678198.4A Withdrawn CN111762903A (en) 2020-07-15 2020-07-15 Self-moving aeration device for sewage treatment

Country Status (1)

Country Link
CN (1) CN111762903A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112875879A (en) * 2021-01-20 2021-06-01 安徽省水利水电勘测设计研究总院有限公司 Mobile underwater aeration device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112875879A (en) * 2021-01-20 2021-06-01 安徽省水利水电勘测设计研究总院有限公司 Mobile underwater aeration device

Similar Documents

Publication Publication Date Title
WO2022068096A1 (en) Wastewater treatment apparatus
CN209721623U (en) A kind of sewage treatment chemicals dosing plant
CN111762903A (en) Self-moving aeration device for sewage treatment
CN117534147B (en) Industrial sewage treatment device and treatment method thereof
CN115231670B (en) Axial convection circulation reaction device based on air floatation coagulation system
CN116492887B (en) Solution mixing device for producing low-carbon clean chromogenic substrate
CN112919623A (en) Self-defoaming sewage treatment aeration tank
CN116768335A (en) Automatic sewage treatment equipment and treatment method
CN101643257B (en) Ionized current superfine foam generating device and ionized current superfine foam generating method using device
CN114984806B (en) Epoxy chloropropane effluent treatment plant
CN116161225A (en) Agricultural production unmanned aerial vehicle's medicine device that spills
CN216236363U (en) Pharmaceutical wastewater treatment equipment
CN115231669A (en) High-efficiency treatment device for kitchen waste wastewater concentrated solution
CN210473142U (en) Foam eliminating device for sewage treatment
CN219709218U (en) Ozone sterilization equipment
CN220573228U (en) River and lake water treatment automatic dosing device
CN211226378U (en) Sewage treatment mixing arrangement
CN214360530U (en) Submersible integrated aeration
CN215828377U (en) Rural sewage treatment device of micro-power
CN217708932U (en) Environment-friendly water treatment foaming device
CN220201612U (en) Medicament dispensing equipment with anti-blocking structure
CN212504032U (en) Environment-friendly sewage treatment equipment
CN216572079U (en) Waste gas purification device for atmospheric pollution
CN221085316U (en) Novel mixing device
CN215355182U (en) Chemical industry effluent water sump scrubbing device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WW01 Invention patent application withdrawn after publication
WW01 Invention patent application withdrawn after publication

Application publication date: 20201013