CN113797647A - Novel decay pond - Google Patents
Novel decay pond Download PDFInfo
- Publication number
- CN113797647A CN113797647A CN202111163246.7A CN202111163246A CN113797647A CN 113797647 A CN113797647 A CN 113797647A CN 202111163246 A CN202111163246 A CN 202111163246A CN 113797647 A CN113797647 A CN 113797647A
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- Prior art keywords
- wall
- inner cylinder
- decay tank
- decay
- water
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 239000002351 wastewater Substances 0.000 claims abstract description 22
- 238000004062 sedimentation Methods 0.000 claims abstract description 21
- 238000007599 discharging Methods 0.000 claims description 18
- 238000007789 sealing Methods 0.000 claims description 12
- 239000002910 solid waste Substances 0.000 claims description 12
- 239000010808 liquid waste Substances 0.000 claims description 6
- 238000005086 pumping Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 239000002354 radioactive wastewater Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 3
- 239000007787 solid Substances 0.000 abstract description 2
- 238000004065 wastewater treatment Methods 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241000700605 Viruses Species 0.000 description 1
- 244000052616 bacterial pathogen Species 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D36/00—Filter circuits or combinations of filters with other separating devices
- B01D36/04—Combinations of filters with settling tanks
Abstract
The invention relates to the field of radioactive wastewater treatment, in particular to a novel decay tank, which comprises a sedimentation barrel and a decay tank, wherein a water suction pump is arranged between the sedimentation barrel and the decay tank, waste is firstly sent into the sedimentation barrel for solid sedimentation, and the waste water in the sedimentation barrel is sent into the decay tank by the water suction pump. The decay pool comprises an outer cylinder and an inner cylinder arranged in the outer cylinder, a circulation channel for circulating the wastewater is formed between the inner cylinder and the outer cylinder, the wastewater enters the inner cylinder after passing through the circulation channel, and a flow distribution plate is arranged between the inner cylinder and the outer cylinder to divide the wastewater into two paths to enter the circulation channel.
Description
Technical Field
The invention relates to the field of radioactive wastewater treatment, in particular to a novel decay tank.
Background
The hospital sewage mainly refers to sewage discharged by a diagnosis and treatment room, a laboratory, a ward, an X-ray photography room, an operating room and the like of a hospital or other medical institutions. Due to the particularity of the sewage treatment system, hospital sewage contains various pathogenic bacteria, viruses, radioactive pollutants and other toxic and harmful substances, and if the sewage is discharged into urban sewer pipelines or environmental water bodies without being disinfected, the harmful substances form secondary pollution sources and cause diseases.
The decay pond is the equipment that is used for handling hospital sewage specially, and current radioactive waste water discharges into behind the decay pond of head end, each decay pond of flowing through in proper order again, discharges after reaching standard finally, but waste water is behind discharging the decay pond, and originally there is a large amount of waste water in the decay pond, and the distance that leads to waste water to enter the mouth from the decay pond is shorter, and the save time is short, reaches the decay pond of tail end after, the radioisotope concentration has not reduced to the management limit value yet.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a novel decay tank.
In order to achieve the purpose, the invention provides the following technical scheme:
a novel decay cell comprising:
a settling tank for settling and discharging the solid waste;
at least one decay tank connected to the settling cask for decaying the liquid waste; and
the water suction pump is arranged between the sedimentation barrel and the decay tank and is used for pumping the liquid waste in the decay tank into the decay tank;
the decay tank comprises an upper hollow outer cylinder, a lower hollow outer cylinder, an inner cylinder arranged in the outer cylinder, a bottom end cover and a top end cover, wherein the bottom end cover is in sealing fit with the bottom end of the outer cylinder and the bottom end of the inner cylinder, and the top end cover is in sealing fit with the top end of the outer cylinder and the top end of the inner cylinder; a first water inlet is formed in the outer cylinder, and a second water inlet is formed in the side wall of the inner cylinder;
an annular flow channel is formed between the outer cylinder and the inner cylinder, a flow distribution plate is arranged between the outer cylinder and the inner cylinder and divides the first water inlet into two parts, so that water entering the annular flow channel from the first water inlet is divided into two parts and enters the inner cylinder towards the second water inlet, and a second water outlet communicated with the inner cylinder is further arranged on the top end cover.
Preferably, the bottom end cover and the inner barrel are of an integrated structure.
Preferably, the inner wall of the outer barrel and the outer wall of the inner barrel are provided with a plurality of water baffles, the water baffles on the inner wall of the outer barrel and the water baffles on the outer wall of the inner barrel are arranged in a staggered mode, and the wastewater at the first water inlet flows to the second water inlet in a bent mode.
Preferably, the bottom end of the flow distribution plate is welded with the bottom end cover, and two horizontal side walls of the flow distribution plate are respectively welded with the inner wall of the outer cylinder and the outer wall of the inner cylinder; the top of the flow distribution plate is also provided with a sealing gasket which is in sealing fit with the top end cover.
Preferably, the inner wall of the outer cylinder and the outer wall of the inner cylinder are both provided with an embedding groove, and one end of the water baffle is embedded in the embedding groove.
Preferably, the sedimentation barrel comprises a feeding cavity and a discharging cavity which are communicated with each other, a feeding hole is formed in the side wall of the feeding cavity, and a discharging hole is formed in the bottom end of the discharging cavity.
Preferably, a filter screen plate is arranged in the middle of the feeding cavity and is positioned below the feeding hole.
Preferably, a rotating shaft is arranged at the junction of the feeding cavity and the discharging cavity, one end of the filter screen plate is fixed on the rotating shaft, and a motor connected with the rotating shaft is arranged on the outer wall of the settling barrel.
Preferably, the inner wall of the feed barrel is provided with a stop plate, and the stop plate is positioned above the filter screen plate.
Compared with the prior art, the invention has the advantages that:
(1) arranging a sedimentation barrel beside the decay tank, wherein the waste water firstly passes through the sedimentation barrel, solid waste and the waste water are separated in the sedimentation barrel, and the waste water is sent into the decay tank through a water suction pump so as to reduce the solid waste in the decay tank;
(2) the sedimentation barrel is divided into a feeding cavity and a discharging cavity, solid waste is discharged from the discharging cavity, and the discharge of radioactive wastewater can be reduced while the solid waste is discharged;
(3) the filter screen plate is arranged to be rotatable, and the filter screen plate can filter solid matters on one hand and can also convey the filtered solid wastes to the discharge cavity on the other hand.
Drawings
FIG. 1 is a general schematic diagram of a novel decay cell in accordance with an embodiment of the present invention;
FIG. 2 is a cross-sectional view of a settling tank in accordance with an embodiment of the present invention;
FIG. 3 is an exploded view of a decay tank according to an embodiment of the present invention;
FIG. 4 is a top view of a decay cell of an embodiment of the present invention with the top end cap removed.
In the figure: 1. a settling barrel; 2. a decay tank; 3. a water pump; 11. a feed cavity; 111. a feed inlet; 12. a discharge chamber; 121. a discharge outlet; 13. a filter screen plate; 14. a rotating shaft; 15. a motor; 16. a stopper plate; 17. a first water outlet; 21. an inner barrel; 211. a second water inlet; 22. an outer cylinder; 221. a first water inlet; 23. a bottom end cap; 24. a top end cap; 241. a second water outlet; 25. a ring flow channel; 26. a flow distribution plate; 261. a gasket; 27. a water baffle; 28. and fitting the groove.
Detailed Description
The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings. Furthermore, the terms "first", "second" and "first" 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
The invention discloses a novel decay tank, which comprises a sedimentation barrel 1 and a decay tank 2, wherein the number of the decay tank 2 can be multiple, only one example of the decay tank 2 is given in the scheme, a water suction pump 3 is arranged between the sedimentation barrel 1 and the decay tank 2, waste discharged from a hospital is firstly sent into the sedimentation barrel 1, solid waste and liquid waste are separated, and the liquid waste in the sedimentation barrel 1 is sent into the decay tank 2 by the water suction pump 3 for decay.
Referring to fig. 1 and 2, the settling tank 1 includes a feeding chamber 11 and a discharging chamber 12, the feeding chamber 11 is arranged side by side with the discharging chamber 12, and the feeding chamber 11 is arranged in a square shape. The feeding cavity 11 is provided with a feeding hole 111, and waste discharged by a hospital enters the feeding cavity 11 through the feeding hole 111. A filter screen 13 is also provided in the feed chamber 11 for retaining solid waste and feeding it into the discharge chamber 12. Specifically, the filter screen plate 13 is arranged in a movable mode, the filter screen plate 13 is arranged in the middle of the feeding cavity 11 and located below the feeding port 111, a rotating shaft 14 penetrates through the junction of the feeding cavity 11 and the discharging cavity 12, one end of the filter screen plate 13 is fixed on the rotating shaft 14, the fixing mode can be welding, bolt connection, buckle connection, sleeving on the rotating shaft 14 or key connection, and welding is preferably performed in the scheme. One end of the rotating shaft 14 penetrates through the inner wall of the settling barrel 1 and can rotate, and the other end of the rotating shaft 14 penetrates through the side wall of the settling barrel 1. The outer side wall of the sedimentation barrel 1 is provided with a motor 15, and the motor 15 is connected with a rotating shaft 14 through a coupler so as to drive the filter screen plate 13 to rotate.
In the scheme, the filter screen plate 13 is in a horizontal state during filtering, when solid waste needs to be sent into the discharge cavity 12, the motor 15 is started, the motor 15 drives the filter screen plate 13 to rotate, one end of the filter screen plate 13 inclines upwards, and the solid waste slides downwards along the inclined filter screen plate 13 and enters the discharge cavity 12. In order to control the maximum inclination angle of the filter screen plate 13, a stop plate 16 is further arranged on the inner wall of the sedimentation barrel 1, the stop plate 16 is a horizontal strip-shaped plate, and the stop plate 16 is arranged above the filter screen plate 13 and welded on the inner wall of the feed cavity 11.
Referring to fig. 1 and 2, the discharge chamber 12 is cylindrical, tapered at the bottom of the discharge chamber 12, provided with a discharge opening 121 at the bottom for discharging solid waste outward, and provided with a ball valve in the discharge opening 121 to open or close the discharge opening 121. The sedimentation barrel 1 is also provided with a first water outlet 17, the first water outlet 17 is communicated with the material discharging cavity 12, and the first water outlet 17 is arranged below the filter screen plate 13.
Referring to fig. 1 and 3, the decay tank 2 includes an upper and lower hollow outer cylinder 22, an inner cylinder 21 disposed in the outer cylinder 22, a bottom end cap 23 and a top end cap 24, both the bottom end cap 23 and the top end cap 24 are disc-shaped, the inner cylinder 21 and the bottom end cap 23 are an integrated structure, and more specifically, the inner cylinder 21 and the bottom end cap 23 are integrally formed. The periphery of the bottom end cover 23 is connected with the bottom end of the outer cylinder 22 through a flange, the top end cover 24 is covered on the outer cylinder 22, the top end cover 24 is also connected with the top end of the outer cylinder 22 through a flange, and the top end of the inner cylinder 21 is abutted against the bottom of the top end cover 24 to form sealing fit.
The side wall of the outer cylinder 22 is provided with a first water inlet 221, the side wall of the inner cylinder 21 is provided with a second water inlet 211, a circular flow channel 25 is formed between the outer cylinder 22 and the inner cylinder 21, the water suction pump 3 leads out waste water from the first water outlet 17 on the sedimentation barrel 1 through a water pipe and sends the waste water into the first water inlet 221 of the outer cylinder 22, and the waste water enters from the first water inlet 221 and enters the inner cylinder 21 from the second water inlet 211 through the circular flow channel 25. The top end cover 24 is provided with a second water outlet 241, the second water outlet 241 is communicated with the inside of the inner cylinder 21, and waste water can be discharged to the outside through the second water outlet 241.
Referring to fig. 3 and 4, a diversion plate 26 is disposed between the outer cylinder 22 and the inner cylinder 21, the diversion plate 26 is a vertically disposed rectangular plate, the diversion plate 26 is disposed at the first water inlet 221, and divides the wastewater introduced from the first water inlet 221 into two parts, and the two parts of wastewater respectively flow from two paths toward the second water inlet 211. The bottom end of the diverter plate 26 is welded with the bottom end cover 23, two side walls of the diverter plate 26 are respectively welded with the inner wall of the outer cylinder 22 and the outer wall of the inner cylinder 21, a sealing gasket 261 is further arranged at the top of the diverter plate 26, the sealing gasket 261 is a rubber gasket, and when the top end cover 24 covers the outer cylinder 22, the sealing gasket 261 is sealed with the bottom plate of the top end cover 24, so that the diverter plate 26 can divide waste water into two parts.
In order to improve the flowing effect of the wastewater, a plurality of water baffles 27 are arranged in the circular flow channel 25, the plurality of water baffles 27 are uniformly distributed in the circular flow channel 25, wherein one part of the water baffles 27 is arranged on the inner wall of the outer cylinder 22, the other part of the water baffles 27 is arranged on the outer wall of the inner cylinder 21, and the water baffles 27 on the outer cylinder 22 and the water baffles 27 on the inner cylinder 21 are arranged in a staggered manner, so that the wastewater in the circular flow channel 25 flows in a bent manner.
Referring to fig. 3 and 4, the inner wall of the outer cylinder 22 and the outer wall of the inner cylinder 21 are provided with fitting grooves 28, the cross section of the fitting groove 28 is set to be square to fit the water guard 27, the fitting groove 28 extends from the bottom end to the top end of the inner cylinder 21 or the outer cylinder 22, and the water guard 27 is fitted in the fitting groove 28. When it is required to improve the flow effect of the waste water, the number of the water baffles 27 may be increased or decreased as appropriate.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A novel decay pond is characterized in that: the method comprises the following steps:
a settling tank (1) for settling and discharging solid waste;
at least one decay tank (2) connected to the settling cask (1) for decaying the liquid waste; and
the water suction pump (3) is arranged between the sedimentation barrel (1) and the decay tank (2) and is used for pumping the liquid waste in the decay tank (2) into the decay tank (2);
the decay tank (2) comprises an upper hollow outer cylinder (22) and a lower hollow inner cylinder (21) arranged in the outer cylinder (22), the decay tank (2) further comprises a bottom end cover (23) and a top end cover (24), the bottom end cover (23) is in sealing fit with the bottom end of the outer cylinder (22) and the bottom end of the inner cylinder (21), and the top end cover (24) is in sealing fit with the top end of the outer cylinder (22) and the top end of the inner cylinder (21); a first water inlet (221) is formed in the outer cylinder (22), and a second water inlet (211) is formed in the side wall of the inner cylinder (21);
an annular flow channel (25) is formed between the outer cylinder (22) and the inner cylinder (21), a flow distribution plate (26) is arranged between the outer cylinder (22) and the inner cylinder (21), the flow distribution plate (26) divides the first water inlet (221) into two parts, so that water entering the annular flow channel (25) from the first water inlet (221) is divided into two parts and enters the inner cylinder (21) towards the second water inlet (211), and a second water outlet (241) communicated with the inner cylinder (21) is further formed in the top end cover (24).
2. A novel decay tank as defined in claim 1, characterized in that: the bottom end cover (23) and the inner cylinder (21) are of an integrated structure.
3. A novel decay tank as defined in claim 1, characterized in that: the inner wall of the outer barrel (22) and the outer wall of the inner barrel (21) are provided with a plurality of water baffles (27), the water baffles (27) on the inner wall of the outer barrel (22) and the water baffles (27) on the outer wall of the inner barrel (21) are arranged in a staggered mode, and wastewater at the first water inlet (221) flows to the second water inlet (211) in a bent mode.
4. A novel decay tank as defined in claim 1, characterized in that: the bottom end of the flow distribution plate (26) is welded with the bottom end cover (23), and two horizontal side walls of the flow distribution plate (26) are respectively welded with the inner wall of the outer cylinder (22) and the outer wall of the inner cylinder (21); the top of the flow distribution plate (26) is also provided with a sealing gasket (261) used for being matched with the top end cover (24) in a sealing mode.
5. A novel decay tank as defined in claim 3, characterized in that: the inner wall of the outer cylinder (22) and the outer wall of the inner cylinder (21) are both provided with an embedding groove (28), and one end of the water baffle (27) is embedded in the embedding groove (28).
6. A novel decay tank as defined in claim 1, characterized in that: the sedimentation barrel (1) comprises a feeding cavity (11) and a discharging cavity (12) which are communicated with each other, a feeding hole (111) is formed in the side wall of the feeding cavity (11), and a discharging hole (121) is formed in the bottom end of the discharging cavity (12).
7. A novel decay tank as defined in claim 6, characterized in that: the middle part in the feeding cavity (11) is provided with a filter screen plate (13), and the filter screen plate (13) is positioned below the feeding hole (111).
8. A novel decay tank as defined in claim 7, characterized in that: the device is characterized in that a rotating shaft (14) is arranged at the junction of the feeding cavity (11) and the discharging cavity (12), one end of the filter screen plate (13) is fixed on the rotating shaft (14), and a motor (15) connected with the rotating shaft (14) is arranged on the outer wall of the settling barrel (1).
9. A novel decay tank as defined in claim 8, characterized in that: the inner wall of the feed barrel is provided with a stop plate (16), and the stop plate (16) is positioned above the filter screen plate (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111163246.7A CN113797647A (en) | 2021-09-30 | 2021-09-30 | Novel decay pond |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111163246.7A CN113797647A (en) | 2021-09-30 | 2021-09-30 | Novel decay pond |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113797647A true CN113797647A (en) | 2021-12-17 |
Family
ID=78897329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111163246.7A Pending CN113797647A (en) | 2021-09-30 | 2021-09-30 | Novel decay pond |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113797647A (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080265182A1 (en) * | 2006-10-11 | 2008-10-30 | Singh Krishna P | Apparatus for providing additional radiation shielding to a container holding radioactive materials, and method of using the same to handle and/or process radioactive materials |
| CN204563685U (en) * | 2015-04-03 | 2015-08-19 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of improved desilting basin for water and soil conservation |
| CN209790956U (en) * | 2018-12-27 | 2019-12-17 | 北京三聚绿能科技有限公司 | Slag settling tank |
| CN209967759U (en) * | 2019-03-25 | 2020-01-21 | 北京京燕水务有限公司 | Slow flow wall |
| CN110787531A (en) * | 2019-11-12 | 2020-02-14 | 南宁卫康医疗器械有限公司 | Radioisotope wastewater treatment system |
| CN210448268U (en) * | 2019-08-14 | 2020-05-05 | 江苏汉光实业股份有限公司 | Waste residue filter equipment is used in production of special agent of high transparent packaging film of polyene |
| CN211507144U (en) * | 2020-01-16 | 2020-09-15 | 核工业二七0研究所 | Novel modularization nuclear medicine branch of academic or vocational study decay pond |
| CN211620280U (en) * | 2019-12-18 | 2020-10-02 | 北京国原新技术有限公司 | Wastewater treatment equipment for nuclear medicine diagnosis and treatment facility |
| CN211935707U (en) * | 2020-04-02 | 2020-11-17 | 陵水德林诚信水产养殖有限公司 | Breed tail water pollutant sedimentation system |
| CN212145634U (en) * | 2020-05-27 | 2020-12-15 | 襄阳市义襄和机械有限公司 | Milling machine cooling system |
-
2021
- 2021-09-30 CN CN202111163246.7A patent/CN113797647A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080265182A1 (en) * | 2006-10-11 | 2008-10-30 | Singh Krishna P | Apparatus for providing additional radiation shielding to a container holding radioactive materials, and method of using the same to handle and/or process radioactive materials |
| CN204563685U (en) * | 2015-04-03 | 2015-08-19 | 中国电建集团贵阳勘测设计研究院有限公司 | A kind of improved desilting basin for water and soil conservation |
| CN209790956U (en) * | 2018-12-27 | 2019-12-17 | 北京三聚绿能科技有限公司 | Slag settling tank |
| CN209967759U (en) * | 2019-03-25 | 2020-01-21 | 北京京燕水务有限公司 | Slow flow wall |
| CN210448268U (en) * | 2019-08-14 | 2020-05-05 | 江苏汉光实业股份有限公司 | Waste residue filter equipment is used in production of special agent of high transparent packaging film of polyene |
| CN110787531A (en) * | 2019-11-12 | 2020-02-14 | 南宁卫康医疗器械有限公司 | Radioisotope wastewater treatment system |
| CN211620280U (en) * | 2019-12-18 | 2020-10-02 | 北京国原新技术有限公司 | Wastewater treatment equipment for nuclear medicine diagnosis and treatment facility |
| CN211507144U (en) * | 2020-01-16 | 2020-09-15 | 核工业二七0研究所 | Novel modularization nuclear medicine branch of academic or vocational study decay pond |
| CN211935707U (en) * | 2020-04-02 | 2020-11-17 | 陵水德林诚信水产养殖有限公司 | Breed tail water pollutant sedimentation system |
| CN212145634U (en) * | 2020-05-27 | 2020-12-15 | 襄阳市义襄和机械有限公司 | Milling machine cooling system |
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Application publication date: 20211217 |
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| RJ01 | Rejection of invention patent application after publication |