CN210113929U - Poultry house excrement deodorizing device for conveying belt excrement - Google Patents
Poultry house excrement deodorizing device for conveying belt excrement Download PDFInfo
- Publication number
- CN210113929U CN210113929U CN201920681415.8U CN201920681415U CN210113929U CN 210113929 U CN210113929 U CN 210113929U CN 201920681415 U CN201920681415 U CN 201920681415U CN 210113929 U CN210113929 U CN 210113929U
- Authority
- CN
- China
- Prior art keywords
- spraying
- liquid
- conveyor belt
- manure
- nozzle
- 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.)
- Active
Links
Images
Landscapes
- Housing For Livestock And Birds (AREA)
Abstract
The utility model belongs to poultry environmental protection field provides a pouity dwelling place excrement and urine deodorizing device for clear excrement of conveyer belt, including adding medicine unit, spraying unit and the control unit. The dosing unit comprises a liquid preparation barrel and a pressure pump, and the pressure pump is connected with a water outlet of the liquid preparation barrel through a liquid inlet pipe; the spraying unit comprises a spraying pipeline and a nozzle; the control unit is connected with a motor and a pressure pump in the dosing unit and a power device in the conveyor belt dung cleaning system. The device provided by the utility model simple structure is reasonable, can spray deodorant liquid as required evenly to clear excrement and urine on the excrement and urine of excrement and urine area, and is efficient, and deodorant effect is good, just carried out rational processing before excrement and urine transports the pouity dwelling place, restraines the foul smell and produces, has reduced the foul smell and has polluted, has improved the pouity dwelling place environment, has fine environmental protection benefit.
Description
Technical Field
The utility model belongs to poultry environmental protection field, in particular to a pouity dwelling place excrement and urine deodorizing device for clear excrement of conveyer belt.
Background
With the rapid development of the large-scale and intensive livestock and poultry breeding industry in China, odor pollution of livestock and poultry farms is a big problem which restricts the sustainable development of the breeding industry and is a public nuisance which influences the living environment and health of people and livestock. The odor of the poultry farm is mainly from the NH generated by putrefactive decomposition of the feces in the house which are not cleaned in time3、H2S, methyl mercaptan and other malodorous substances are discharged in an unorganized form. In the environment polluted by odor for a long time, the growth, development and production performance of livestock and poultry are influenced, disease and epidemic diseases are caused, the safety of livestock products is harmed, and the environmental pollution is easily caused. Research shows that NH3Can cause eutrophication pollution of water body and acidification of an ecological system, and is related to global climate warming and haze formation. Therefore, it is necessary to explore the deodorization technique of the farm. In addition, the problems of odor pollution are not taken into consideration all the time due to the fact that livestock farms produce heavy products for a long time, are light and environment-friendly, and are not in accordance with the requirements of creating beautiful ecological pastures in Beijing. And the industrial deodorization technology is adopted, so that the engineering investment is large, the facility operation and maintenance cost is high, and the method is not suitable for most of small and medium-sized breeding enterprises.
SUMMERY OF THE UTILITY MODEL
In order to solve the above-mentioned problem that exists among the prior art, the utility model discloses to the current pouity dwelling place excrement and urine collection method who uses the clear excrement of conveyer belt, design one kind and the synchronous excrement and urine deodorizing device of the clear excrement and urine operation of pouity dwelling place, the device adopts the microorganism deodorization, reduces the foul smell and discharges on the front end, to improving air quality, responds the clean air action and has the significance.
The utility model provides a poultry house excrement deodorizing device for conveying belt excrement, which comprises a dosing unit, a spraying unit and a control unit, wherein,
the dosing unit comprises a liquid preparation barrel and a pressure pump, the liquid preparation barrel is used for preparing deodorant liquid, and the pressure pump is connected with a water outlet of the liquid preparation barrel through a liquid inlet pipe; the pressurizing pump obtains power through a motor connected with the pressurizing pump, so that the deodorizing liquid from the liquid distribution barrel is pressurized, and the deodorizing liquid is conveyed to the spraying unit at required pressure;
the spraying unit comprises a spraying pipeline and a spraying nozzle, wherein the spraying pipeline comprises a spraying main pipe and a spraying branch pipe, one end of the spraying main pipe is connected with a water outlet of the pressure pump, the other end of the spraying main pipe is connected with the spraying branch pipe, the spraying branch pipe is parallel to a rotating shaft of the conveyor belt dung cleaning belt, a plurality of the spraying nozzles are uniformly arranged on the spraying branch pipe, a nozzle spray angle α of the spraying nozzle is more than or equal to 55 degrees and less than or equal to α degrees and less than or equal to 65 degrees, and a distance h between the lower end of the spraying nozzle and the conveyor belt dung cleaning belt and a distance d between the spraying nozzle 22 satisfy the following relation that h is more than or equal to 0;
the control unit is connected with a motor in the dosing unit and is used for controlling the motor to work; the control unit is also connected with the pressure pump to adjust the pressure of the deodorization liquid provided by the pressure pump; the control unit is also connected with a power device in the conveyor belt dung cleaning system and used for controlling the moving speed of the conveyor belt dung cleaning belt.
In a preferred embodiment, the dosing unit further comprises a purifier, the purifier is mounted on a water inlet pipe entering the liquid dispensing barrel, and a water outlet end of the purifier is connected with a water inlet of the liquid dispensing barrel through the water inlet pipe.
In a preferred embodiment, a stirring rod is arranged in the liquid preparation barrel, and the stirring rod extends into the liquid preparation barrel through a water inlet of the liquid preparation barrel.
In a preferred embodiment, the liquid dispensing barrel is made of glass or transparent plastic.
In a preferred embodiment, a transparent window or a liquid level meter is arranged on the side surface of the liquid distribution barrel.
In a preferred embodiment, a liquid return pipe is further arranged between the pressure pump and the liquid distribution barrel.
In a preferred embodiment, the nozzle has a nozzle angle α of 58 ° α ° 62 °.
In a preferred embodiment, the distance h between the lower end of the nozzle and the conveyor belt and the distance d between the nozzles satisfy the following relationship: h is more than or equal to 0.75d and less than or equal to 0.95 d.
In a preferred embodiment, the distance h between the lower end of the nozzle and the conveyor belt is 0.15-0.45 m.
In a preferred embodiment, the nozzle has a nozzle angle α of 60 °;
the distance h between the lower end of the nozzle and the conveyor belt manure cleaning belt and the distance d between the nozzles satisfy the following relations: h is 0.8 d;
the distance h between the lower end of the nozzle and the manure cleaning belt of the conveying belt is 0.3 m.
The utility model provides a pouity dwelling place excrement and urine deodorizing device for clear excrement of conveyer belt, moreover, the steam generator is simple in structure reasonable, can spray deodorant liquid as required uniformly on the excrement and urine of clear excrement area, clear excrement and urine area synchronous operation with defeated belt type under the unified control of the control unit, the operating efficiency is improved, deodorizing effect is good, just carry out rational processing before excrement and urine transports out the pouity dwelling place, restrain the foul smell and produce, the foul smell pollution is reduced, pouity dwelling place environment is improved, and the environment-friendly benefit is good.
Drawings
Fig. 1 is a schematic structural view of a poultry house excrement deodorizing device for conveying belt excrement according to a preferred embodiment of the present invention, showing a medicine adding unit and a control unit.
Fig. 2 is a schematic structural view of a spraying unit of the poultry house excrement deodorizing device for conveying belt excrement according to the preferred embodiment of the present invention, which shows the structure of the spraying unit in a stepped poultry house.
Fig. 3 is a schematic structural view of a spraying unit of the poultry house excrement deodorizing device for conveying belt excrement according to the preferred embodiment of the present invention, which shows the structure of the spraying unit in the stacked poultry house.
The reference numerals in the figures are explained below:
1-dosing unit, 2-spraying unit, 3-control unit, 11-purifier, 12-liquid distribution barrel, 13-pressure pump, 15-water inlet, 16-liquid inlet pipe, 17-motor, 18-liquid return pipe, 21-spraying pipeline, 22-nozzle, 23-spraying dry pipe and 24-spraying branch pipe.
Detailed Description
In order to make the technical solution, objects and advantages of the present invention clearer, the present invention is described in further detail below with reference to specific embodiments and accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. For the electrical and communication fields, either a wired connection or a wireless connection is possible. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
An embodiment of the utility model provides a pouity dwelling place excrement and urine deodorizing device for clear excrement of conveyer belt, including adding medicine unit 1, spraying unit 2 and the control unit 3.
As shown in fig. 1, the medicine adding unit 1 includes a purifier 11, a liquid preparation tank 12, and a pressurizing pump 13.
Consider the plant quality of water characteristics and avoid the shower nozzle of spraying unit to take place to block up, the utility model discloses preferably install clarifier 11 on the inlet tube that gets into liquid distribution bucket 12 to the water that will be used for preparing the deodorant liquid purifies. The water outlet end of the purifier 11 is connected with the water inlet 15 of the liquid preparation barrel 12 through a water inlet pipe. The water inlet 15 is preferably arranged at the top of the liquid distribution barrel 12. The water inlet 15 of the liquid preparation barrel 12 can be used for injecting water into the liquid preparation barrel 12 and adding deodorant into the liquid preparation barrel 12. The deodorant is preferably a liquid deodorant microbial agent which is easily soluble in water, for example, VT-1000 microbial agents manufactured by biotechnology limited in woterra, beijing, and the usage amount of the microbial agents is determined by referring to specific product specifications and combining actual requirements (for example, the type and amount of excrement discharged). In order to control the water inlet amount in the liquid preparation barrel 12, a valve (not shown) may be disposed on the water inlet pipe between the water outlet end of the purifier 11 and the water inlet 15 of the liquid preparation barrel 12.
The liquid preparation barrel 12 is used for preparing deodorant liquid. In order to facilitate rapid and uniform mixing of the deodorant and the water, a stirring device, such as a stirring rod, may be provided in the dispensing barrel 12, and the stirring rod may extend into the dispensing barrel 12 through the water inlet 15 of the dispensing barrel 12 and may be preferably electrically driven (for example, the upper end of the stirring rod is connected to a motor to drive the stirring rod by the motor). In order to facilitate the observation of the liquid inside the dispensing barrel 12, it is preferable that the dispensing barrel 12 is made of transparent material, such as glass or transparent plastic; or a transparent window or a liquid level meter is arranged on the side surface of the liquid distribution barrel 12 so as to observe the liquid condition in the liquid distribution barrel 12 through the window or the liquid level meter.
The pressure pump 13 is connected with the water outlet of the liquid preparation barrel 12 through a liquid inlet pipe 16; the water outlet of the liquid preparation barrel 12 is preferably arranged at the bottom of the liquid preparation barrel 12. The pressurizing pump 13 may be powered by a motor 17 connected thereto to pressurize the deodorizing liquid from the dispensing tank 12 to deliver the deodorizing liquid to the spraying unit 2 at a desired pressure. A liquid return pipe 18 is further provided between the pressurizing pump 13 and the liquid dispensing barrel 12 to return a part of the deodorizing liquid into the liquid dispensing barrel 12 when the deodorizing liquid pressure in the pressurizing pump 13 is excessive, so as to maintain the deodorizing liquid pressure required by the spraying unit 2.
As shown in fig. 2 and 3, the spray unit 2 includes a spray line 21 and a nozzle 22. The spray line 21 includes a spray trunk 23 and a spray branch 24, and one end of the spray trunk 23 is connected to the outlet of the pressure pump 13, and the other end is connected to the spray branch 24. The plurality of nozzles 22 are uniformly arranged on the spray branch pipes 24 (the number of nozzles 22 is set according to the width of the conveyor belt and the width of the spray coverage at a certain installation height, as shown in fig. 2 and 3, three nozzles are arranged on each spray branch pipe). The spray branch pipe 24 is parallel to the rotating shaft of the conveyor belt dung cleaning belt. The nozzle 22 may atomize and spray the deodorizing liquid onto the conveyor belt for deodorizing the manure.
The nozzle spray angle α of the nozzle 22 is 55 DEG.ltoreq. α.ltoreq.65 DEG, such as in the range between any one or two of 55 DEG.ltoreq. α.ltoreq.60 DEG, 57 DEG.ltoreq. α.ltoreq.62 DEG, 58 DEG.ltoreq. α.ltoreq.64 DEG, 61 DEG.ltoreq. α.ltoreq.65 DEG or 58 DEG.ltoreq. α.ltoreq.62 DEG, preferably 60 DEG, wherein the term "nozzle spray angle α" refers to the angle of the central angle of the sector formed by the spray of the nozzle 22 (e.g. the α angle shown in FIG. 3.) the spray coverage width is the width of the ground covered on both sides of the spray angle.
In order to make the deodorizing liquid uniformly and sufficiently sprayed on the excrement on the conveyor belt manure cleaning belt, the distance h between the lower end of the nozzle 22 and the conveyor belt manure cleaning belt and the distance d between the nozzles 22 (see fig. 3) satisfy the following relationship: 0.7d ≦ h ≦ d, e.g., h may range between any one or two of 0.7d, 0.75d, 0.8d, 0.85d, 0.9d, 0.95d, and d, e.g., 0.75d ≦ h ≦ 0.95d, 0.7d ≦ h ≦ 0.85d, or 0.8d ≦ h ≦ d, preferably 0.8 d.
Preferably, the spacing h between the lower end of the nozzle 22 and the conveyor manure belt is 0.15-0.45 meters, and may for example be any one or a range between two of 0.15 meters, 0.18 meters, 0.2 meters, 0.22 meters, 0.25 meters, 0.28 meters, 0.3 meters, 0.32 meters, 0.35 meters, 0.38 meters, 0.4 meters, 0.42 meters and 0.45 meters, such as 0.25-0.35 meters, 0.2-0.35 meters, 0.28-0.38 meters or 0.15-0.3 meters, preferably 0.3 meters.
As shown in fig. 2, the poultry house is a stepped poultry house (preferably a chicken house) equipped with only one conveyor manure removal belt, and therefore only one spray branch 24 needs to be provided.
As shown in fig. 3, the poultry house is a stacked poultry house (preferably a chicken house) with four layers (actually, there may be multiple layers according to the breeding situation), each layer is provided with a conveyor belt for cleaning manure, and therefore four spray branch pipes 24 are needed in total.
As shown in fig. 1, the control unit 3 is connected to the motor 17 in the dosing unit 1 for controlling the operation of the motor 17 to provide sufficient power to the pressurizing pump 13. The control unit 3 is also connected to the pressurizing pump 13 to adjust the pressure of the deodorizing liquid supplied from the pressurizing pump 13 as needed, thereby controlling the speed of the deodorizing liquid sprayed from the nozzle 22 in the spraying unit 2. The control unit 3 is also connected with a power device (such as a motor) in the conveyor belt dung cleaning system and is used for controlling the moving speed of the conveyor belt dung cleaning belt. The control unit 3 can adjust the rotating speed of the motor 17 and the pressure of the deodorant liquid provided by the pressure pump 13 according to the moving speed of the conveyor belt and the amount of the excrement on the conveyor belt, and further adjust the speed of the deodorant liquid sprayed out of the nozzle 22, so that the excrement can obtain the appropriate amount of deodorant liquid, and the optimal deodorant effect is achieved.
In actual use, the number of the spraying branch pipes which is the same as that of the dung cleaning belts is set according to the number of the dung cleaning belts used in a poultry house (such as a henhouse), the spraying branch pipes are arranged at one end of the dung cleaning belts (generally arranged at the tail ends of the dung cleaning belts), and other components, such as a dosing unit and a spraying dry pipe in the spraying unit, can be shared.
The utility model discloses a set up reasonable nozzle 22's nozzle spray angle α, combine the lower extreme of reasonable control nozzle 22 and the clear excrement of conveyer belt to take between the interval h, and interval d between the nozzle 22, can be under control system's unified control, the excrement and urine classification and the quantity that the clear excrement and urine was taken and the moving speed in clear excrement and urine area combine, can spray deodorant liquid as required on the excrement and urine on the clear excrement and urine area uniformly, thereby just carried out fine deodorization processing before transporting excrement and urine out the pouity dwelling place effectively, inhibit the foul gas and produce, reduce harmful gas pollution, the living environment of breed poultry has been improved, and the environmental protection benefit is good.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a pouity dwelling place excrement and urine deodorizing device for clear excrement of conveyer belt which characterized in that:
the device comprises a dosing unit, a spraying unit and a control unit, wherein,
the dosing unit comprises a liquid preparation barrel and a pressure pump, the liquid preparation barrel is used for preparing deodorant liquid, and the pressure pump is connected with a water outlet of the liquid preparation barrel through a liquid inlet pipe; the pressurizing pump obtains power through a motor connected with the pressurizing pump, so that the deodorizing liquid from the liquid distribution barrel is pressurized, and the deodorizing liquid is conveyed to the spraying unit at required pressure;
the spraying unit comprises a spraying pipeline and a spraying nozzle, wherein the spraying pipeline comprises a spraying main pipe and a spraying branch pipe, one end of the spraying main pipe is connected with a water outlet of the pressure pump, the other end of the spraying main pipe is connected with the spraying branch pipe, the spraying branch pipe is parallel to a rotating shaft of the conveyor belt dung cleaning belt, a plurality of spraying nozzles are uniformly arranged on the spraying branch pipe, a nozzle spray angle α of the spraying nozzle is more than or equal to 55 degrees and less than or equal to α degrees and less than or equal to 65 degrees, a distance h between the lower end of the spraying nozzle and the conveyor belt dung cleaning belt and a distance d between the spraying nozzle and the spraying nozzle (22) meet the following relation that h is more than or equal;
the control unit is connected with a motor in the dosing unit and is used for controlling the motor to work; the control unit is also connected with the pressure pump to adjust the pressure of the deodorization liquid provided by the pressure pump; the control unit is also connected with a power device in the conveyor belt dung cleaning system and used for controlling the moving speed of the conveyor belt dung cleaning belt.
2. A poultry house manure odor removal apparatus for conveyor belt manure removal as defined in claim 1 wherein:
the medicine adding unit further comprises a purifier, the purifier is installed on the water inlet pipe entering the liquid distribution barrel, and the water outlet end of the purifier is connected with the water inlet of the liquid distribution barrel through the water inlet pipe.
3. A poultry house manure odor removal apparatus for conveyor belt manure removal as defined in claim 1 or 2 wherein:
a stirring rod is arranged in the liquid preparation barrel and extends into the liquid preparation barrel through a water inlet of the liquid preparation barrel.
4. A poultry house manure odor removal apparatus for conveyor belt manure removal as defined in claim 3 wherein:
the liquid preparation barrel is made of glass or transparent plastic.
5. A poultry house manure odor removal apparatus for conveyor belt manure removal as defined in claim 3 wherein:
and a transparent window or a liquid level meter is arranged on the side surface of the liquid distribution barrel.
6. A poultry house manure odor removal device for conveyor belt manure removal as defined in claim 5 wherein:
a liquid return pipe is also arranged between the pressure pump and the liquid distribution barrel.
7. A poultry house manure odor removal apparatus for conveyor belt manure removal as defined in claim 6 wherein:
the spray angle α of the nozzle is equal to or more than 58 degrees and equal to or less than α degrees and equal to or less than 62 degrees.
8. A poultry house manure odor removal apparatus for conveyor belt manure removal as defined in claim 7 wherein:
the distance h between the lower end of the nozzle and the conveyor belt manure cleaning belt and the distance d between the nozzles satisfy the following relations: h is more than or equal to 0.75d and less than or equal to 0.95 d.
9. A poultry house manure odor removal apparatus for conveyor belt manure removal as defined in claim 7 wherein:
the distance h between the lower end of the nozzle and the manure cleaning belt of the conveyor belt is 0.15-0.45 m.
10. A poultry house manure odor removal apparatus for conveyor belt manure removal as defined in claim 9 wherein:
the nozzle spray angle α of the nozzle is 60 °;
the distance h between the lower end of the nozzle and the conveyor belt manure cleaning belt and the distance d between the nozzles satisfy the following relations: h is 0.8 d;
the distance h between the lower end of the nozzle and the manure cleaning belt of the conveying belt is 0.3 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920681415.8U CN210113929U (en) | 2019-05-14 | 2019-05-14 | Poultry house excrement deodorizing device for conveying belt excrement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920681415.8U CN210113929U (en) | 2019-05-14 | 2019-05-14 | Poultry house excrement deodorizing device for conveying belt excrement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210113929U true CN210113929U (en) | 2020-02-28 |
Family
ID=69613988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920681415.8U Active CN210113929U (en) | 2019-05-14 | 2019-05-14 | Poultry house excrement deodorizing device for conveying belt excrement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210113929U (en) |
-
2019
- 2019-05-14 CN CN201920681415.8U patent/CN210113929U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209268297U (en) | A kind of excrement cleaning plant of environment-friendly type livestock-raising | |
| CN207666899U (en) | A kind of intelligence livestock and poultry farm deodorization and disinfection cooling equipment integrating | |
| CN206744165U (en) | A kind of cultivation feces cleaning machine | |
| CN105850755A (en) | Three-dimensional multi-layer pigsty capable of dry-cleaning manure without rinse | |
| CN110038397A (en) | Livestock and poultry cultivation house ammonia emission reduction device | |
| CN210113930U (en) | A pouity dwelling place excrement and urine deodorizing device for scraping clear excrement of dropping board | |
| CN210113929U (en) | Poultry house excrement deodorizing device for conveying belt excrement | |
| CN211631262U (en) | Livestock-raising is with disinfection belt cleaning device | |
| CN110407611A (en) | A kind of livestock and poultry farm excrement pretreatment unit | |
| CN208617711U (en) | A kind of Animal fecal pollution spray installation for fermenting | |
| CN103782941B (en) | Heavy property fish hatcher | |
| CN205756269U (en) | A kind of flushing free does clear excrement layer stereo pig house | |
| CN107902732A (en) | Comprehensive water treatment system for livestock shed | |
| CN207957852U (en) | Comprehensive water treatment system for livestock shed | |
| CN215610435U (en) | Dirty processing of beasts and birds excrement is with peculiar smell purifier | |
| CN212573810U (en) | Cleaning device for breeding field for animal husbandry | |
| CN214289956U (en) | Beasts and birds innocent treatment equipment dies of illness | |
| CN215327548U (en) | Sewage treatment plant in pig farm | |
| CN111662819B (en) | Agricultural waste treatment device | |
| CN113620550A (en) | Excrement processor | |
| CN209957622U (en) | Livestock and poultry breeding manure treatment system | |
| CN210114960U (en) | Device for absorbing ammonia gas in livestock and poultry breeding house | |
| CN112142501A (en) | Livestock and poultry manure cleaning treatment device and treatment method | |
| CN210610682U (en) | Excrement and urine recovery unit for animal husbandry | |
| CN201890830U (en) | Draining and fermentation device for farms |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |