CN108576888B - Fodder even stirring device with drying function - Google Patents
Fodder even stirring device with drying function Download PDFInfo
- Publication number
- CN108576888B CN108576888B CN201810275210.XA CN201810275210A CN108576888B CN 108576888 B CN108576888 B CN 108576888B CN 201810275210 A CN201810275210 A CN 201810275210A CN 108576888 B CN108576888 B CN 108576888B
- Authority
- CN
- China
- Prior art keywords
- rotating shaft
- shell
- hot air
- fixedly connected
- feed
- 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.)
- Expired - Fee Related
Links
- 238000003756 stirring Methods 0.000 title claims abstract description 58
- 238000001035 drying Methods 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims description 26
- 230000001681 protective effect Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 241001465754 Metazoa Species 0.000 description 2
- 238000009395 breeding Methods 0.000 description 2
- 230000001488 breeding effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 235000019733 Fish meal Nutrition 0.000 description 1
- 244000068988 Glycine max Species 0.000 description 1
- 235000010469 Glycine max Nutrition 0.000 description 1
- 235000019735 Meat-and-bone meal Nutrition 0.000 description 1
- 244000138286 Sorghum saccharatum Species 0.000 description 1
- 235000011684 Sorghum saccharatum Nutrition 0.000 description 1
- 235000019764 Soybean Meal Nutrition 0.000 description 1
- 239000005862 Whey Substances 0.000 description 1
- 102000007544 Whey Proteins Human genes 0.000 description 1
- 108010046377 Whey Proteins Proteins 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 235000001014 amino acid Nutrition 0.000 description 1
- 150000001413 amino acids Chemical class 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000004467 fishmeal Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000004455 soybean meal Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
- A23N17/007—Apparatus specially adapted for preparing animal feeding-stuffs for mixing feeding-stuff components
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Animal Husbandry (AREA)
- Chemical & Material Sciences (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Drying Of Solid Materials (AREA)
- Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
Abstract
The invention discloses a feed uniform stirring device with a drying function, which comprises a shell and an air heater, wherein the shell is provided with a drying cavity; a rotating shaft is arranged in the shell, extends to the right side of the shell and is connected with a driving motor; the rotating shaft is fixedly connected with inner stirring plates which are vertically and symmetrically distributed, the outer sides of the inner stirring plates are provided with outer stirring plates, and the outer stirring plates are provided with grooves; the rotating shaft is provided with hot air nozzles distributed at equal intervals. According to the invention, the inner stirring plate and the outer stirring plate which rotate in opposite directions are arranged to fully stir the feed, and the feed gathered at the bottom is lifted to a high position through the groove arranged on the outer stirring plate, so that the feed is uniformly mixed, the mixing efficiency is improved, and the mixing is more uniform; according to the invention, the hot air nozzle is arranged on the rotating shaft, so that hot air is quickly and uniformly contacted with the feed, the drying efficiency is improved, the feed is uniformly heated, and the drying effect is better.
Description
Technical Field
The invention relates to the field of feed processing, in particular to a uniform feed stirring device with a drying function.
Background
The term "feed" is a general term for food of all human-raised animals, and in a narrow sense, a general feed mainly refers to food of agricultural or animal-raised animals. The feed comprises more than ten kinds of feed raw materials such as soybean, soybean meal, corn, fish meal, amino acid, miscellaneous meal, additives, whey powder, grease, meat and bone meal, grains, sweet sorghum and the like. With the popularization of large-scale breeding, the demand of large-scale livestock breeding bases on feeds is huge, and common feeds contain various different feeds, and the feeds need to be stirred and mixed before being fed, so that the balance of the nutritional values of the feeds is ensured, and the growth of livestock is facilitated.
Traditional fodder stirring mixing mechanism, simple structure adopts driving motor to drive single stirring roller generally and carries out one-way stirring, and stirring effect is poor, can not make the even dispersion of various fodder, especially the fodder of bottom can't be with the fodder intensive mixing on upper portion, causes the fodder to mix inhomogeneous, influences the effect of feeding.
Disclosure of Invention
The invention aims to provide a feed uniform stirring device with a drying function, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a fodder uniform stirring device with drying function comprises a shell and an air heater; a rotating shaft is arranged in the shell, extends to the right side of the shell and is connected with a driving motor; the rotating shaft is fixedly connected with inner stirring plates which are vertically and symmetrically distributed, the outer sides of the inner stirring plates are provided with outer stirring plates, and the outer stirring plates are provided with grooves; the outer stirring plate is fixedly connected with symmetrical connecting plates, the connecting plates are fixedly connected with a rotary drum, and the rotary drum on the left side extends to the left side of the shell; the rotary drum is sleeved on the outer side of the rotating shaft and is rotationally connected with the rotating shaft through a bearing sleeve, and the rotary drum is rotationally connected with the shell through the bearing sleeve; a rack ring is sleeved at the left end of the rotary drum, a transmission gear is meshed at the top of the rack ring, and the transmission gear is fixedly connected with a transmission shaft; the transmission shaft is connected with the rotating shaft through a transmission belt; the rotating shaft is provided with hot air nozzles distributed at equal intervals, the hot air nozzles are communicated with hot air pipes, the hot air pipes are nested in the rotating shaft and are communicated with air delivery pipes, the air delivery pipes are nested in the rotating shaft and extend to the left end part of the rotating shaft, the air delivery pipes are communicated with air inlet pipes through rotating connectors, and the air inlet pipes are communicated with air heaters; the hot air blower is fixedly connected with a protective cover through a bolt, and the protective cover is fixedly connected with the shell; the bottom of the shell is hinged with a bottom plate, the bottom of the bottom plate is hinged with a hydraulic telescopic rod, the other end of the hydraulic telescopic rod is hinged with a support, and the support is fixedly connected with the shell.
As a further scheme of the invention: the casing is horizontal hollow tubular structure of placing, and the casing top is equipped with the feeder hopper.
As a further scheme of the invention: the driving motor is fixedly connected with the right side of the shell in a bolt fixing mode.
As a further scheme of the invention: the rotating shaft extends to the outside of the drum.
As a further scheme of the invention: the transmission shaft is rotatably connected with the outer wall of the shell through a bearing.
As a further scheme of the invention: the rotating shaft is a hollow rotating shaft.
As a further scheme of the invention: the bottom plate is an arc-shaped plate.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, the inner stirring plate and the outer stirring plate which rotate in opposite directions are arranged to fully stir the feed, and the feed gathered at the bottom is lifted to a high position through the groove arranged on the outer stirring plate, so that the feed is uniformly mixed, the mixing efficiency is improved, and the mixing is more uniform; according to the invention, the hot air nozzle is arranged on the rotating shaft, so that hot air is quickly and uniformly contacted with the feed, the drying efficiency is improved, the feed is uniformly heated, and the drying effect is better.
Drawings
FIG. 1 is a schematic structural diagram of a feed homogenizing and stirring device with a drying function;
FIG. 2 is a left side view of an outer stirring plate in the fodder uniform stirring device with drying function;
FIG. 3 is a left side view of an inner stirring plate of the fodder uniform stirring device with drying function;
fig. 4 is a schematic structural diagram of a drying mechanism in the feed homogenizing and stirring device with the drying function.
In the figure: 1-a shell; 2-a feed hopper; 3-a rotating shaft; 4-inner stirring plate; 5-driving a motor; 6-hot air spray head; 7-hot air pipe, 8-conveying pipe; 9-a rotary joint; 10-an air inlet pipe; 11-a hot air blower; 12-a protective cover; 13-external stirring plate; 1301-a groove; 14-a connecting plate; 15-a rotating drum; 16-a rack ring; 17-a transmission gear; 18-a drive shaft; 19-a drive belt; 20-a base plate; 21-hydraulic telescopic rod; 22-support.
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.
Referring to fig. 1 to 4, in an embodiment of the present invention, a feed uniform stirring device with a drying function includes a housing 1 and an air heater 11; the shell 1 is a hollow cylindrical structure which is transversely placed, a feed hopper 2 is arranged at the top of the shell 1, and feed is fed from the feed hopper 2; a rotating shaft 3 is arranged in the shell 1, the rotating shaft 3 extends to the right side of the shell 1 and is connected with a driving motor 5, the driving motor 5 is fixedly connected with the right side of the shell 1 in a bolt fixing mode, the driving motor 5 is electrically connected with an external power supply, and the driving motor 5 drives the rotating shaft 3 to rotate; the rotating shaft 3 is fixedly connected with inner stirring plates 4 which are vertically and symmetrically distributed, outer stirring plates 13 are arranged outside the inner stirring plates 4, and the outer stirring plates 13 are provided with grooves 1301, so that feed can be conveniently lifted; the outer stirring plate 13 is fixedly connected with symmetrical connecting plates 14, the connecting plates 14 are fixedly connected with a rotating drum 15, and the rotating drum 15 on the left side extends to the left side of the shell 1; the rotary drum 15 is sleeved on the outer side of the rotary shaft 3 and is rotatably connected with the rotary shaft 3 through a bearing sleeve, the rotary shaft 3 extends to the outer side of the rotary drum 15, and the rotary drum 15 is rotatably connected with the shell 1 through the bearing sleeve; a rack ring 16 is sleeved at the left end of the rotating drum 15, a transmission gear 17 is meshed at the top of the rack ring 16, the transmission gear 17 is fixedly connected with a transmission shaft 18, and the transmission shaft 18 is rotatably connected with the outer wall of the shell 1 through a bearing; the transmission shaft 18 is connected with the rotating shaft 3 through a transmission belt 19; the rotating shaft 3 drives the transmission shaft 18 to rotate through the transmission belt 19, the transmission shaft 18 drives the rack ring 16 and the rotating drum 15 to rotate through the transmission gear 17, and the rotating direction of the rotating drum 15 is opposite to that of the rotating shaft 13, so that the rotating directions of the inner stirring plate 4 and the outer stirring plate 13 are opposite; the rotating shaft 3 is provided with hot air nozzles 6 distributed at equal intervals, the rotating shaft 3 is a hollow rotating shaft, the hot air nozzles 6 are communicated with a hot air pipe 7, the hot air pipe 7 is embedded in the rotating shaft 3, the hot air pipe 7 is communicated with an air pipe 8, the air pipe 8 is embedded in the rotating shaft 3 and extends to the left end part of the rotating shaft 3, the air pipe 8 is communicated with an air inlet pipe 10 through a rotating joint 9, and the air inlet pipe 10 is communicated with a hot air blower 11; the air heater 11 is electrically connected with an external power supply, the air heater 11 is fixedly connected with a protective cover 12 through bolts, and the protective cover 12 is fixedly connected with the shell 1; the bottom of the shell 1 is hinged with a bottom plate 20, the bottom plate 20 is an arc-shaped plate, the bottom of the bottom plate 20 is hinged with a hydraulic telescopic rod 21, the other end of the hydraulic telescopic rod 21 is hinged with a support 22, and the support 22 is fixedly connected with the shell 1; the hydraulic telescopic rod 21 is electrically connected with an external power supply, and controls the opening and closing of the bottom plate 20 to carry out efficient blanking.
The working principle of the invention is as follows: the feed to be stirred is put into the feed hopper 2, the driving motor 5 is started, the driving motor 5 drives the rotating shaft 3 to rotate, the rotating shaft 3 drives the inner stirring plate 4 to rotate, meanwhile, the rotating shaft 3 drives the rotary drum 15 to rotate through the transmission belt 19, the transmission shaft 18, the transmission gear 17 and the rack ring 16, the rotating direction of the rotary drum is opposite to that of the rotating shaft 3, the rotary drum 15 drives the outer stirring plate 13 to rotate through the connecting plate 14, the rotating directions of the inner stirring plate 4 and the outer stirring plate 13 are opposite, the outer stirring plate 13 is provided with a groove 1301, the feed gathered at the bottom in the shell 1 is lifted upwards by the outer stirring plate 13, the feed in the shell 1 is fully and uniformly mixed, the mixing efficiency is improved, when the feed is wet and needs to be dried, the hot air fan 11 is started, hot air generated by the hot air fan 11 enters the hot air pipe 10, the rotary joint 9, the feed is dried while being turned over, so that the drying speed and the drying uniformity are improved.
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 (7)
1. A fodder uniform stirring device with a drying function comprises a shell (1) and a hot air blower (11); the device is characterized in that a rotating shaft (3) is arranged in the shell (1), and the rotating shaft (3) extends to the right side of the shell (1) and is connected with a driving motor (5); the rotating shaft (3) is fixedly connected with inner stirring plates (4) which are vertically and symmetrically distributed, outer stirring plates (13) are arranged on the outer sides of the inner stirring plates (4), and grooves (1301) are formed in the outer stirring plates (13); the outer stirring plate (13) is fixedly connected with symmetrical connecting plates (14), the connecting plates (14) are fixedly connected with a rotating drum (15), and the rotating drum (15) on the left side extends to the left side of the shell (1); the rotary drum (15) is sleeved on the outer side of the rotating shaft (3) and is rotatably connected with the rotating shaft (3) through a bearing sleeve, and the rotary drum (15) is rotatably connected with the shell (1) through the bearing sleeve; a rack ring (16) is sleeved at the left end of the rotary drum (15), a transmission gear (17) is meshed at the top of the rack ring (16), and the transmission gear (17) is fixedly connected with a transmission shaft (18); the transmission shaft (18) is connected with the rotating shaft (3) through a transmission belt (19); the rotary shaft (3) is provided with hot air nozzles (6) distributed at equal intervals, the hot air nozzles (6) are communicated with a hot air pipe (7), the hot air pipe (7) is nested in the rotary shaft (3), the hot air pipe (7) is communicated with an air conveying pipe (8), the air conveying pipe (8) is nested in the rotary shaft (3) and extends to the left end part of the rotary shaft (3), the air conveying pipe (8) is communicated with an air inlet pipe (10) through a rotary joint (9), and the air inlet pipe (10) is communicated with a hot air fan (11); the air heater (11) is fixedly connected with a protective cover (12) through a bolt, and the protective cover (12) is fixedly connected with the shell (1); the bottom of the shell (1) is hinged with a bottom plate (20), the bottom of the bottom plate (20) is hinged with a hydraulic telescopic rod (21), the other end of the hydraulic telescopic rod (21) is hinged with a support (22), and the support (22) is fixedly connected with the shell (1).
2. The feed homogenizing and stirring device with the drying function as claimed in claim 1, characterized in that the housing (1) is a hollow cylindrical structure placed transversely, and a feed hopper (2) is arranged at the top of the housing (1).
3. The fodder homogenizing and stirring device with drying function according to claim 1, characterized in that the driving motor (5) is fixedly connected with the right side of the housing (1) by means of bolt fastening.
4. A fodder homogenizing mixer with drying function according to claim 1, characterized in that the rotating shaft (3) extends outside the drum (15).
5. The fodder homogenizing and stirring device with drying function according to claim 1, characterized in that the transmission shaft (18) is rotatably connected with the outer wall of the housing (1) through a bearing.
6. The fodder homogenizing mixer with drying function according to claim 1, characterized in that the rotating shaft (3) is a hollow rotating shaft.
7. The fodder homogenizing mixer with drying function according to claim 1, characterized in that the bottom plate (20) is an arc-shaped plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275210.XA CN108576888B (en) | 2018-03-30 | 2018-03-30 | Fodder even stirring device with drying function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810275210.XA CN108576888B (en) | 2018-03-30 | 2018-03-30 | Fodder even stirring device with drying function |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108576888A CN108576888A (en) | 2018-09-28 |
| CN108576888B true CN108576888B (en) | 2021-01-15 |
Family
ID=63625032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810275210.XA Expired - Fee Related CN108576888B (en) | 2018-03-30 | 2018-03-30 | Fodder even stirring device with drying function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108576888B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084555A (en) * | 2018-11-09 | 2018-12-25 | 王晓霞 | A kind of inside raw material anti-caking pannage process units with rapid drying function |
| CN111036538B (en) * | 2019-12-31 | 2021-11-12 | 菏泽城建工程发展集团有限公司 | Coarse sand screening and drying device for constructional engineering |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159017A (en) * | 2017-07-07 | 2017-09-15 | 张迪超 | A kind of mixing arrangement of feed and additive |
| CN107685030A (en) * | 2017-09-26 | 2018-02-13 | 张宇霞 | A kind of agricultural uses grain screening drying unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206905459U (en) * | 2017-04-19 | 2018-01-19 | 唐县蒲公英茶叶制造有限公司 | A kind of tea processing drying roller |
-
2018
- 2018-03-30 CN CN201810275210.XA patent/CN108576888B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107159017A (en) * | 2017-07-07 | 2017-09-15 | 张迪超 | A kind of mixing arrangement of feed and additive |
| CN107685030A (en) * | 2017-09-26 | 2018-02-13 | 张宇霞 | A kind of agricultural uses grain screening drying unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108576888A (en) | 2018-09-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206229240U (en) | A kind of animal foods process biaxial mixing device | |
| CN107570068A (en) | A kind of efficient evenly mixing device of livestock feed | |
| CN108380128A (en) | A kind of better feed stuff agitating device of mixed effect | |
| CN107495448A (en) | A kind of grade is than quantitative Blendling-device of feedstuffs | |
| CN108576888B (en) | Fodder even stirring device with drying function | |
| CN107927868A (en) | A kind of animal husbandry Blendling-device of feedstuffs | |
| CN108554260A (en) | A kind of chicken and duck breeding feed mixing arrangement | |
| CN107711551A (en) | A kind of efficiently mixed fodder feeds all-in-one | |
| CN207680559U (en) | A kind of uniformly heated fodder mixing machine | |
| CN213819350U (en) | A diet groove device for livestock-raising | |
| CN109618959A (en) | Herding feeder | |
| CN108030126A (en) | A kind of quick mixing granulation device of feed with polishing | |
| CN211120453U (en) | A vertical drying device for feed pellet | |
| CN218163939U (en) | Pig raising feeder with ration structure | |
| CN107927403B (en) | Pig feed beneficial to pig growth and processing device thereof | |
| CN207911717U (en) | A kind of animal husbandry feeder | |
| CN210630617U (en) | Chicken fodder quenching and tempering curing system | |
| CN212236867U (en) | Feed mixing device for livestock breeding | |
| CN212188928U (en) | Scientific feed mixing device for livestock and poultry breeding | |
| CN105996086A (en) | Livestock breeding forage grass mixing stirrer | |
| CN111514775A (en) | A mixer device for poultry plant uses | |
| CN107927877B (en) | A kind of Blendling-device of feedstuffs for Feed Manufacturing layering charging | |
| CN216358994U (en) | Feed mixing and drying device | |
| CN220852918U (en) | Mixing and drying device for dog food production and processing | |
| CN215388876U (en) | Raw material stirring device based on animal feed processing |
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 | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20201224 Address after: No.1-1, Wutong Industrial Park, Changshan Town, Rong County, Zigong City, Sichuan Province Applicant after: Zigong Zhengbang agriculture and animal husbandry technology Co.,Ltd. Address before: 323903 No. 3, 4 Zhenjiang District, Wenxi, Qingtian, Lishui, Zhejiang Applicant before: Yan Haijun |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210115 |