CN111841097A - Device for preventing sewage treatment pipeline from being blocked - Google Patents
Device for preventing sewage treatment pipeline from being blocked Download PDFInfo
- Publication number
- CN111841097A CN111841097A CN202010739112.4A CN202010739112A CN111841097A CN 111841097 A CN111841097 A CN 111841097A CN 202010739112 A CN202010739112 A CN 202010739112A CN 111841097 A CN111841097 A CN 111841097A
- Authority
- CN
- China
- Prior art keywords
- filter screen
- pipeline
- side wall
- fixedly arranged
- replacement
- 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.)
- Pending
Links
- 239000010865 sewage Substances 0.000 title claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 230000003373 anti-fouling effect Effects 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- 238000011900 installation process Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 10
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 4
- 235000017491 Bambusa tulda Nutrition 0.000 description 4
- 241001330002 Bambuseae Species 0.000 description 4
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 4
- 239000011425 bamboo Substances 0.000 description 4
- 239000003344 environmental pollutant Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 238000004140 cleaning Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000005192 partition Methods 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 206010063659 Aversion Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000003895 groundwater pollution Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/01—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with flat filtering elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/50—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition
- B01D29/56—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection
- B01D29/58—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor with multiple filtering elements, characterised by their mutual disposition in series connection arranged concentrically or coaxially
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D29/00—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
- B01D29/96—Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor in which the filtering elements are moved between filtering operations; Particular measures for removing or replacing the filtering elements; Transport systems for filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
- B01D35/02—Filters adapted for location in special places, e.g. pipe-lines, pumps, stop-cocks
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
Abstract
The invention discloses a device for preventing sewage from blocking a treatment pipeline, which comprises a pipeline, and a filter screen and a replacement screen which are vertically intercepted and arranged in the pipeline, wherein the filter screen and the replacement screen are both arranged in a hemispherical shape, the filter screen and the replacement screen are jointly arranged in a spherical shape in an encircling manner, a fixed rod is fixedly arranged on the side wall of the pipeline, a rotating shaft is rotatably arranged on the fixed rod, a cover plate is fixedly arranged on the rotating shaft, a rubber waterproof block is fixedly arranged on the side wall of the pipeline on the same side, one end of the cover plate, far away from the rotating shaft, is abutted against the side wall of the rubber waterproof block, a cavity is concavely arranged on the lower side wall of the pipeline, a limit block is convexly arranged on one side of the filter screen of the. The invention has the advantages of ingenious design and scientific and reasonable structure, realizes that no sewage flows when the filter screen in the sewage pipeline is replaced, and simultaneously facilitates the replacement and installation process of the filter screen.
Description
Technical Field
The invention relates to the technical field of sewage pipelines, in particular to a device for preventing sewage treatment pipeline blockage.
Background
The topic about water pollution is continuously raised, particularly the problem of groundwater pollution is classified according to the source of sewage, and sewage treatment is generally divided into production sewage treatment and domestic sewage treatment. The production sewage comprises industrial sewage, agricultural sewage, medical sewage and the like, and the domestic sewage is sewage generated in daily life, and refers to complex mixtures of various forms of inorganic matters and organic matters, and comprises the following steps: floating and suspended large and small solid particles; ② colloidal and gelatinous dispersions; pure solution, and when domestic sewage is treated, a filter screen is often arranged in a sewage treatment pipeline to preliminarily filter fixed particles in the sewage so as to facilitate the next purification of the domestic sewage;
filter screen in the sewage treatment pipeline now uses a period of time after, its filter screen mesh department can the card have a large amount of pollutants, cause the condition of filter screen jam to take place, and when changing the filter screen, need take out the filter screen that will adhere to a large amount of pollutants and put into new filter screen again, in the in-process of taking out and installing, can not have filterable sewage and flow through, and then influence purification process on next step, and simultaneously, the installation and the change mode tradition of current filter screen, the process is loaded down with trivial details and need consume more time and labour, we propose a device that antifouling water treatment pipeline blockked up to this.
Disclosure of Invention
The invention aims to solve the defects in the prior art, such as: the existing filter screen replacing mode is traditional, unfiltered sewage flows through the filter screen replacing process, the condition of incomplete filtration is caused, meanwhile, the filter screen replacing process is complicated, and the device for preventing the sewage treatment pipeline from being blocked is provided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a device for preventing sewage treatment pipeline blockage comprises a pipeline, a filter screen and a replacement screen which are vertically intercepted and arranged in the pipeline, wherein the filter screen and the replacement screen are arranged in a hemispherical shape and are jointly encircled into a spherical shape, a fixed rod is fixedly arranged on the side wall of the pipeline, a rotating shaft is rotatably arranged on the fixed rod, a cover plate is fixedly arranged on the rotating shaft, a rubber waterproof block is fixedly arranged on the side wall on the same side of the pipeline, one end, far away from the rotating shaft, of the cover plate is abutted against the side wall of the rubber waterproof block, a cavity is concavely arranged on the lower side wall of the pipeline, a limiting block is convexly arranged on one side of the filter screen of the cavity, a disc is fixedly arranged at the bottom of the cavity, a partition plate is vertically and fixedly arranged in the disc and is used for spacing the lower ends of the filter screen and the replacement screen, and a bearing is, the bearing is fixedly arranged on the bottom wall of the cavity, the lower ends of the filter screen and the replacement screen are arranged in an I shape matched with the limiting block, the lower ends of the filter screen and the replacement screen are clamped in the cavity, the upper ends of the filter screen and the replacement screen are sunken to be provided with grooves, and driving mechanisms are arranged in the grooves.
Preferably, actuating mechanism is including setting up two slide bars in the recess, two all fixed sliders that are equipped with on the lateral wall of slide bar, be equipped with assorted spout in the bottom of recess, two the upper end of slide bar all is fixed and is equipped with a screw thread section of thick bamboo, two the common cover of screw thread section of thick bamboo is equipped with the nut, the fixed pull ring that is equipped with on the nut.
Preferably, a thread plate is fixedly arranged on the outer side wall of the cover plate, one end of the thread plate is attached to the side wall of the pipeline, and the thread plate and the pipeline are locked through screw threads.
Preferably, one side of the fixed rod, which is close to the cover plate, is transversely and fixedly provided with a limiting rod, and the side wall of the rotating shaft is fixedly provided with a matched fixed block.
Preferably, the lower ends of the two slide bars are both fixedly provided with limiting plates, and the cross-sectional areas of the limiting plates are arranged in a larger mode.
Preferably, the lateral wall of nut is the arc setting, and the cover is equipped with rubber antiskid cover on the nut.
Compared with the prior art, the invention has the beneficial effects that:
1. through the mutual matching of the filter screen and the replacement screen, when the filter screen needs to be replaced, the cover plate is opened, the replacement screen is connected in the cavity, so that the filter screen and the replacement screen jointly form a sphere, then the replacement screen is rotated, the replacement screen is rotated to the original position of the filter screen, and the filter screen can be taken out, so that unfiltered sewage can not flow when the filter screen is replaced, and the filtering thoroughness is ensured;
2. through actuating mechanism's setting for to the installation of filter screen and replacement net with take out process ten minutes convenient and fast, with replacement net and filter screen rotate the aversion after, through the pulling pull ring, pull out the slide bar, later rotate the nut, make filter screen and replacement net separation, later can be convenient take out the filter screen, carry out the cleaning process, when having practiced thrift the time, liberated the labour.
Drawings
FIG. 1 is a schematic view showing the internal structure of an apparatus for treating pipe clogging with sewage according to the present invention;
FIG. 2 is a schematic view of the structure at A in FIG. 1;
FIG. 3 is a schematic view of the structure at B in FIG. 1;
fig. 4 is a schematic structural diagram at C in fig. 1.
In the figure: the device comprises a pipeline 1, a filter screen 2, a replacement screen 3, a rotating shaft 4, a fixing rod 5, a cover plate 6, a rubber waterproof block 7, a cavity 8, a limiting block 9, a disc 10, a partition plate 11, a bearing 12, a groove 13, a sliding rod 14, a limiting plate 15, a sliding groove 16, a sliding block 17, a threaded cylinder 18, a nut 19, a pull ring 20, a limiting rod 21 and a fixing block 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.
Referring to fig. 1-4, a device for preventing sewage treatment pipeline blockage comprises a pipeline 1, a filter screen 2 and a replacement screen 3 vertically intercepted in the pipeline 1, wherein the filter screen 2 and the replacement screen 3 are both arranged in a hemispherical shape, the filter screen 2 and the replacement screen 3 are jointly arranged in a spherical shape in an encircling manner, a fixed rod 5 is fixedly arranged on the side wall of the pipeline 1, a rotating shaft 4 is rotatably arranged on the fixed rod 5, a cover plate 6 is fixedly arranged on the rotating shaft 4, a limiting rod 21 is transversely fixedly arranged on one side of the fixed rod 5 close to the cover plate 6, a matched fixed block 22 is fixedly arranged on the side wall of the rotating shaft 4, the rotating angle of the cover plate 6 is limited, the bad influence on the sealing property of the cover plate 6 caused by the rotation of the cover plate into the pipeline 1 is prevented, a thread plate is fixedly arranged on the outer side wall of the cover plate 6, one end of the thread plate is arranged on the side wall, so that the cover plate 6 can be well fixed on the side wall of the pipeline 1, and the water leakage is effectively prevented, the side wall of the same side of the pipeline 1 is fixedly provided with a rubber waterproof block 7, one end of the cover plate 6 far away from the rotating shaft 4 is propped against the side wall of the rubber waterproof block 7, the lower side wall of the pipeline 1 is concavely provided with a cavity 8, one side of the cavity 8, which is provided with a limiting block 9 in a protruding way, the bottom of the cavity 8 is fixedly provided with a disc 10, a baffle plate 11 is vertically and fixedly arranged in the disc 10, the lower ends of the filter screen 2 and the replacement screen 3 are arranged at intervals by the baffle plate 11, the lower end of the disc 10 is fixedly provided with a bearing 12, the bearing 12 is fixedly arranged on the bottom wall of the cavity 8, the lower ends of the filter screen 2 and the replacement screen 3 are arranged in an I shape matched with the limiting block 9, the lower ends of the filter screen 2 and the replacement screen 3, the driving mechanism is arranged in the groove 13, the installation and taking-out processes of the filter screen 2 and the replacement screen 3 are very convenient and fast through the arrangement of the driving mechanism, after the replacement screen 3 and the filter screen 2 are rotated and shifted, the slide rods 14 are pulled out through pulling the pull ring 20, then the screw caps 19 are rotated, the filter screen 2 is separated from the replacement screen 3, then the filter screen 2 can be conveniently taken out, the cleaning process is carried out, time is saved, labor force is liberated, the driving mechanism comprises two slide rods 14 arranged in the groove 13, the lower ends of the two slide rods 14 are both fixedly provided with limiting plates 15, the cross-sectional areas of the limiting plates 15 are arranged in a larger mode, the sliding phenomenon possibly occurring to the slide rods 14 when the slide rods 14 are pulled upwards is prevented, the structure is further fixed, the slide blocks 17 are fixedly arranged on the side walls of the two slide rods 14, and matched slide grooves 16 are arranged in the bottom of, the upper end of two slide bars 14 is all fixed and is equipped with screw thread section of thick bamboo 18, the common cover is equipped with nut 19 on two screw thread sections of thick bamboo 18, the fixed pull ring 20 that is equipped with on the nut 19, nut 19's lateral wall is the arc setting, and the cover is equipped with rubber antiskid cover on the nut 19, the manual process of unscrewing nut 19 of the staff of being convenient for takes place, through mutually supporting of filter screen 2 and replacement net 3, when needing to carry out 2 changes to the filter screen, open apron 6, with replacement net 3 joint in cavity 8, thereby make filter screen 2 and replacement net 3 constitute the sphere jointly, rotate replacement net 3 again, it moves 3 original positions to filter screen 2 to change the net, can take out filter screen 2, make when changing filter screen 2, can not have unfiltered sewage to flow, filterable thoroughness has been guaranteed.
In the invention, when the filter screen 2 in the pipeline 1 is blocked, the water flow at the water outlet of the pipeline 1 is reduced, at the moment, the filter screen 2 in the pipeline 1 needs to be replaced, the upper side wall of the pipeline 1 is opened by unscrewing the screw and rotating the cover plate 6, then the replacement net 3 is put in, the replacement net 3 is clamped in the cavity 8, and the filter net 2 and the replacement net 3 are fixed together by the nut 19, and then the filter net 2 and the replacement net 3 are exchanged by continuing to rotate the nut 19, and then the pull ring 20 is pulled to pull out the slide bar 14, the nut 19 is rotated reversely, the nut 19 is taken out, taking out the filter screen 2 with the pollutant blocked in the mesh, then rotating the cover plate 6 to abut against the rubber waterproof block 7, fixing the thread plate 7 on the side wall of the pipeline 1 through threaded connection, namely, the replacement process of the filter screen 2 is completed, and the situation that the unfiltered sewage flows through is prevented.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (6)
1. A device for preventing sewage treatment pipeline blockage comprises a pipeline (1), a filter screen (2) and a replacement net (3) which are vertically intercepted in the pipeline (1), wherein the filter screen (2) and the replacement net (3) are arranged in a hemispherical shape, and the filter screen (2) and the replacement net (3) are jointly arranged in a spherical shape in a surrounding manner, and is characterized in that a fixed rod (5) is fixedly arranged on the side wall of the pipeline (1), a rotating shaft (4) is rotatably arranged on the fixed rod (5), a cover plate (6) is fixedly arranged on the rotating shaft (4), a rubber waterproof block (7) is fixedly arranged on the side wall of the pipeline (1) on the same side, one end, far away from the rotating shaft (4), of the cover plate (6) is abutted against the side wall of the rubber waterproof block (7), a cavity (8) is concavely arranged on the lower side wall of the pipeline (1), and a limit block (9) is arranged on one side, protruding of the filter screen (2), of the, the fixed disc (10) that is equipped with in bottom of cavity (8), disc (10) interior vertical fixed baffle (11) that is equipped with, baffle (11) set up the lower extreme interval of filter screen (2) and replacement net (3), the fixed bearing (12) that is equipped with of lower extreme of disc (10), bearing (12) are fixed to be set up on the diapire of cavity (8), the lower extreme of filter screen (2) and replacement net (3) is "worker" font setting with stopper (9) assorted, the lower extreme card setting of filter screen (2) and replacement net (3) is in cavity (8), the upper end of filter screen (2) and replacement net (3) is sunken to be equipped with recess (13), be equipped with actuating mechanism in recess (13).
2. An anti-sewage treatment pipe blockage device according to claim 1, wherein the driving mechanism comprises two sliding rods (14) arranged in a groove (13), sliding blocks (17) are fixedly arranged on the side walls of the two sliding rods (14), a matched sliding groove (16) is arranged in the bottom of the groove (13), threaded cylinders (18) are fixedly arranged at the upper ends of the two sliding rods (14), nuts (19) are commonly sleeved on the two threaded cylinders (18), and pull rings (20) are fixedly arranged on the nuts (19).
3. An anti-sewage treatment pipe blockage device according to claim 1, characterized in that a thread plate is fixedly arranged on the outer side wall of the cover plate (6), one end of the thread plate is arranged on the side wall of the pipe (1) in an abutting mode, and the thread plate and the pipe (1) are arranged in a locking mode through screw threads.
4. An anti-sewage treatment pipe blockage device according to claim 1, characterized in that a limiting rod (21) is transversely and fixedly arranged on one side of the fixing rod (5) close to the cover plate (6), and a matched fixing block (22) is fixedly arranged on the side wall of the rotating shaft (4).
5. An anti-sewage treatment pipe blockage device according to claim 1, wherein a limiting plate (15) is fixedly arranged at the lower end of each of the two sliding rods (14), and the cross-sectional area of the limiting plate (15) is larger.
6. An antifouling water treatment pipe plugging device according to claim 2, wherein said side wall of said screw cap (19) is arc-shaped, and said screw cap (19) is sleeved with a rubber anti-slip sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010739112.4A CN111841097A (en) | 2020-07-28 | 2020-07-28 | Device for preventing sewage treatment pipeline from being blocked |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010739112.4A CN111841097A (en) | 2020-07-28 | 2020-07-28 | Device for preventing sewage treatment pipeline from being blocked |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111841097A true CN111841097A (en) | 2020-10-30 |
Family
ID=72947618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010739112.4A Pending CN111841097A (en) | 2020-07-28 | 2020-07-28 | Device for preventing sewage treatment pipeline from being blocked |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111841097A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112450919A (en) * | 2020-11-11 | 2021-03-09 | 云南省第一人民医院 | Blood glucose monitoring device for evaluating nighttime hypoglycemia of type 2 diabetes patients |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2332629A1 (en) * | 2009-03-30 | 2011-06-15 | Larson, Nils-Göran | Self cleaning filter assembly |
| CN206676051U (en) * | 2017-04-11 | 2017-11-28 | 浙江海洋大学 | The filter that can uninterruptedly use |
| CN107638727A (en) * | 2017-11-14 | 2018-01-30 | 如皋千骏工具有限公司 | A kind of new contaminant filter ball |
| CN207899087U (en) * | 2017-12-19 | 2018-09-25 | 南京科远自动化集团股份有限公司 | A kind of rotating filter and blowdown apparatus for water process |
| CN208726919U (en) * | 2018-07-16 | 2019-04-12 | 苏州日月星辰静电净化技术有限公司 | A kind of double-layer filtering net |
| CN210473197U (en) * | 2019-06-24 | 2020-05-08 | 广东咏煌建筑节能科技有限公司 | Intelligent environment-friendly sewage treatment device for building |
-
2020
- 2020-07-28 CN CN202010739112.4A patent/CN111841097A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2332629A1 (en) * | 2009-03-30 | 2011-06-15 | Larson, Nils-Göran | Self cleaning filter assembly |
| CN206676051U (en) * | 2017-04-11 | 2017-11-28 | 浙江海洋大学 | The filter that can uninterruptedly use |
| CN107638727A (en) * | 2017-11-14 | 2018-01-30 | 如皋千骏工具有限公司 | A kind of new contaminant filter ball |
| CN207899087U (en) * | 2017-12-19 | 2018-09-25 | 南京科远自动化集团股份有限公司 | A kind of rotating filter and blowdown apparatus for water process |
| CN208726919U (en) * | 2018-07-16 | 2019-04-12 | 苏州日月星辰静电净化技术有限公司 | A kind of double-layer filtering net |
| CN210473197U (en) * | 2019-06-24 | 2020-05-08 | 广东咏煌建筑节能科技有限公司 | Intelligent environment-friendly sewage treatment device for building |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112450919A (en) * | 2020-11-11 | 2021-03-09 | 云南省第一人民医院 | Blood glucose monitoring device for evaluating nighttime hypoglycemia of type 2 diabetes patients |
| CN112450919B (en) * | 2020-11-11 | 2022-11-04 | 云南省第一人民医院 | Blood glucose monitoring device for evaluating nighttime hypoglycemia of type 2 diabetes patients |
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| PB01 | Publication | ||
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Application publication date: 20201030 |