CN209655851U - A kind of bio-feritlizer cooling device - Google Patents

A kind of bio-feritlizer cooling device Download PDF

Info

Publication number
CN209655851U
CN209655851U CN201821952595.0U CN201821952595U CN209655851U CN 209655851 U CN209655851 U CN 209655851U CN 201821952595 U CN201821952595 U CN 201821952595U CN 209655851 U CN209655851 U CN 209655851U
Authority
CN
China
Prior art keywords
conveyer belt
fertilizer
feed box
cooler bin
bio
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
Application number
CN201821952595.0U
Other languages
Chinese (zh)
Inventor
陈永芳
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Anhui Jinqiu Fertilizer Industry Co Ltd
Original Assignee
Anhui Jinqiu Fertilizer Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Anhui Jinqiu Fertilizer Industry Co Ltd filed Critical Anhui Jinqiu Fertilizer Industry Co Ltd
Priority to CN201821952595.0U priority Critical patent/CN209655851U/en
Application granted granted Critical
Publication of CN209655851U publication Critical patent/CN209655851U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Fertilizers (AREA)

Abstract

The utility model discloses a kind of bio-feritlizer cooling devices, including cooler bin, feed box, the stirring cooling system of servo motor, main agitator, secondary agitator and air-cooler composition, the feeding hybrid system of feed pipe and feeding engine composition, and the screening discharge system of tilt and vibration sieve, the first conveyer belt and the second conveyer belt composition, the bottom end of feed box are welded with feed box, the top side of cooler bin is communicated with feed hopper;The cooling device of the utility model is stirred fertilizer by double stirrer simultaneously, the cold wind of air-cooler blowout is exported by exhaust vent, with the rotation of blender, it is sent into inside fertilizer, cooling fertilizer is carried out from inside to outside, fertilizer derived from material guide port sieves pre-screening fertilizer by tilt and vibration, and the fertilizer of two different stages is sent by different positions by the first conveyer belt and the second conveyer belt and is sieved again, and wind scoop also face tilt and vibration sieve is blown a cold wind over out, is cooled down again to fertilizer thereon.

Description

A kind of bio-feritlizer cooling device
Technical field
The utility model relates to bio-feritlizer production equipment technology more particularly to a kind of bio-feritlizer cooling devices.
Background technique
Then existing bio-fertilizer is equipped with microbial inoculum and inorganic fertilizer mixes all based on organic matter.To improve this extensively The general and traditional situation of kind, biological fertilizer products have then much surmounted existing concept.It will be enlarged by can provide work Object nutrition, and soil can be improved;Also reply soil carries out disinfection simultaneously, i.e., is decomposed and eliminated using biological (mainly microorganism) The pollutant of the products such as pesticide (insecticide and fungicide), herbicide and petrochemical industry in soil, and soil is risen simultaneously To repair.
The bio-feritlizer of narrow sense refers to microorganism (bacterium) fertilizer, abbreviation bacterial manure, also known as microbial inoculant.It is by Microorganism with special efficiency is through made of everfermentation (artificial training system), containing a large amount of beneficial microbes, after being manured into soil, or Nutrient in the nitrogen being capable of fixing in air, or energy activating soil improves the nutrient environment of plant, or living in the life of microorganism During dynamic, active material is generated, the specified microorganisms product of plant growth is stimulated.
The bio-feritlizer of broad sense refer to it is using biotechnology manufacture, there is specific fertilizer efficiency (or to have fertilizer efficiency again and have to crop Stimulation) biological agent, effective component can be the conversion of specific living organism, the metabolin of organism or matrix Object etc., this organism are also possible to animal and plant tissue and cell either microorganism.Bio-feritlizer and chemical fertilizer have Machine fertilizer is the same, is the important source of manure in agricultural production.In recent years, since a large amount of of chemical fertilizer and chemical pesticide unreasonable apply With not only consuming a large amount of non-renewable resources, but also destroy soil texture, polluted quality of agricultural product and environment, shadow The health existence of the mankind is rung.Therefore, in terms of the development trend of the green agriculture, the ecological agriculture advocated in modern agricultural production, Harmless boilogical fertilizer free from environmental pollution will can play a significant role in the future of agriculture production.
Bio-feritlizer production needs processed by ingredient → mixing → granulation → drying → cooling → screening → packaging Journey, during cooling, since bio-feritlizer quantity is big, cooling device carries out the intracorporal fertilizer of case by air-cooler cold But, the cold wind intelligence of air-cooler blowout is cooling to the fertilizer on surface, and internal fertilizer is cooled limited area, is frequently present of outer cold The phenomenon of interior heat, bad, ineffective problem that there is cooling quality, is unfavorable for subsequent screening work.
Utility model content
Purpose of the utility model is to solve the problems of the prior art, and a kind of cooling dress of the bio-feritlizer proposed It sets.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of bio-feritlizer cooling device, including cooler bin, feed box, servo motor, main agitator, secondary agitator and cold The feeding hybrid system and tilt and vibration sieve of the stirring cooling system of blower composition, feed pipe and feeding engine composition, first pass The screening discharge system for sending band and the second conveyer belt to form, the bottom end of the feed box are welded with feed box, and the feed box is logical The support column support of its bottom end welding is crossed, the top side of the cooler bin is communicated with feed hopper, and the side of the feed box is set It is equipped with discharge port.
Preferably, the servo motor in the stirring cooling system is bolted on the top of cooler bin, described to watch The output end for taking motor also passes through the main agitator that shaft coupling is connected on cooler bin, the secondary agitator and main agitator it is upper Portion is mounted on belt pulley, and two belt pulleys are linked together by belt, and the main agitator and secondary agitator Paddle is provided with wind guide chamber in the main agitator and secondary agitator, and if being provided on it in being staggered up and down A dry exhaust vent, and the tail end of the two is by passing through the bottom end of cooler bin, and penetrates in air hose, the air hose is mounted on discharging The inner tip of case, and be connected on the outlet air end for the air-cooler that feed box side is installed.
Preferably, the main agitator and secondary agitator lower part pass through the bottom end that bearing is fixed on cooler bin, and described The top of secondary agitator is fixed on the top of cooler bin also by bearing.
Preferably, a side-lower of the feed pipe connection in the feeding hybrid system in cooler bin, the feeding engine peace On feed pipe, the tail end of the feed pipe is connected on feed hopper.
Preferably, in the screening discharge system, the material guide port of cooler bin bottom end setting is connected to feed box, the material guide port Lower section tilt and vibration sieve is installed, air hose top connection goes out wind scoop face tilt and vibration sieve, the tilt and vibration sieve Tail end connect the first conveyer belt, the lower section of tilt and vibration sieve is equipped with the second conveyer belt.
Preferably, first conveyer belt and the second conveyer belt are by two inside an annular conveyer belt and conveyer belt The roller at end forms, and two rollers positioned at first conveyer belt and second conveyer belt the same end are connected to one by chain It rises, and the roller on the first conveyer belt is by shaft coupling connection motor, first conveyer belt and the second conveyer belt other end Two rollers are respectively mounted on the support frame, and support frame as described above is welded on the support column of feed box bottom end.
Preferably, on one end that first conveyer belt and the second conveyer belt are connected by chain, first conveyer belt It is mounted on the inner bottom of feed box, second conveyer belt is mounted in feed box by support rod, the tilt and vibration sieve For the inclined filter screen with vibrator.
Compared with prior art, the utility model provides a kind of bio-feritlizer cooling device, have it is following the utility model has the advantages that
(1), the cooling device of the utility model drives main agitator and secondary agitator to stir simultaneously and mixes by servo motor The cold wind of Hefei material, air-cooler blowout is imported in wind guide chamber by air hose, is exported later by exhaust vent, with turning for blender It is dynamic, it is sent into inside fertilizer, while blender, carries out cooling fertilizer from inside to outside.
(2), the cooling device of the utility model is also by the feed pipe with feeding engine by fertilizer after cooling in cooler bin Material is sent into feed hopper, is fed again into cooler bin together after the fertilizers are mixed with original, and fertilizer can be made to be uniformly mixed, after making cooling Fertilizer and the new fertilizer not cooled down uniformly can contact and mix, in order to improve cooling effect.
(3), the cooling device of the utility model fertilizer cooling by material guide port export, sieves pre-screening by tilt and vibration Fertilizer, and the fertilizer of two different stages is sent by different positions by the first conveyer belt and the second conveyer belt and is sieved again Point, during pre-screening, wind scoop face tilt and vibration sieve is blown a cold wind over out, is cooled down again to fertilizer thereon, can be made to lead Fertilizer out thoroughly cools down.
It is not directed to part in the device to be the same as those in the prior art or can be realized by using the prior art, the utility model Structure is simple, easy to operate.
Detailed description of the invention
Fig. 1 be the utility model proposes a kind of bio-feritlizer cooling device subjective structural schematic diagram;
Fig. 2 be the utility model proposes a kind of bio-feritlizer cooling device agitator structure schematic diagram;
Fig. 3 be the utility model proposes the tilt and vibration of bio-feritlizer cooling device a kind of sieve and combine with the first conveyer belt Structural schematic diagram;
Fig. 4 be the utility model proposes a kind of bio-feritlizer cooling device the first conveyer structure schematic diagram.
In figure: 1, cooler bin;2, feed hopper;3, servo motor;4, main agitator;5, secondary agitator;6, belt pulley;7, skin Band;8, wind guide chamber;9, exhaust vent;10, air-cooler;11, air hose;12, feed box;13, feed pipe;14, feeding engine;15, guide Mouthful;16, tilt and vibration sieves;17, go out wind scoop;18, the first conveyer belt;19, the second conveyer belt;20, support frame;21, chain;22, Motor;23, conveyer belt;24, roller.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.
In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
Embodiment 1
As shown in Figs 1-4, a kind of bio-feritlizer cooling device, including cooler bin 1, feed box 12, servo motor 3, master stir Mix the stirring cooling system that device 4, secondary agitator 5 and air-cooler 10 form, the feeding mixing that feed pipe 13 and feeding engine 14 form System and tilt and vibration sieve the screening discharge system of the 16, first conveyer belt 18 and the second conveyer belt 19 composition, feed box 12 Bottom end is welded with feed box 12, and feed box 12 is supported by the support column that its bottom end is welded, and the top side of cooler bin 1 is communicated with The side of feed hopper 2, feed box 12 is provided with discharge port.
Servo motor 3 in stirring cooling system is bolted on the top of cooler bin 1, the output of servo motor 3 End is also connected on the main agitator 4 of cooler bin 1 by shaft coupling, and the top of secondary agitator 5 and main agitator 4 is mounted on skin Belt wheel 6, two belt pulleys 6 are linked together by belt 7, and main agitator 4 and secondary agitator 5 are connected to one by belt 7 It rises, the two rotation is driven by servo motor 3, is stirred fertilizer, and the paddle of main agitator 4 and secondary agitator 5 is presented Under be staggered, be provided with wind guide chamber 8 in main agitator 4 and secondary agitator 5, and be provided with several exhaust vents 9 on it, And the tail end of the two and penetrates in air hose 11, air hose 11 is mounted on the inside of feed box 12 by passing through the bottom end of cooler bin 1 Top, and it is connected to the outlet air end for the air-cooler 10 installed in 12 side of feed box, in order to keep cold wind derived from air-cooler 10 logical It crosses air hose 11 to enter in wind guide chamber 8, is imported in cooler bin 1, the fertilizer in it is carried out from inside to outside cold by exhaust vent 9 later But.
Main agitator 4 and 5 lower part of secondary agitator pass through the bottom end that bearing is fixed on cooler bin 1, and the top of secondary agitator 5 End is fixed on the top of cooler bin 1 also by bearing, and two blenders are fixed in cooler bin 1, when avoiding being stirred, are stirred It is mobile to mix device.
Mixing is stirred to fertilizer simultaneously by double stirrer, while the cold prince wife that air-cooler 10 is blown out passes through on blender Exhaust vent 9 export, fertilizer is cooled down from inside to outside, mixing effect is good, and cooling efficiency is high, in order to improve cooling effect Rate.
Embodiment 2
As shown in Figs 1-4, a side-lower of the connection of feed pipe 13 in cooler bin 1 in feeding hybrid system, feeding engine 14 Be mounted on feed pipe 13, the tail end of feed pipe 13 is connected on feed hopper 2, for will be cooling in cooler bin 1 fertilizer with into Former fertilizer mixing in hopper 2, is fed again into cooler bin 1 and carries out combination cooling.
It sieves in discharge system, the material guide port 15 of 1 bottom end of cooler bin setting is connected to feed box 12, the lower section peace of material guide port 15 Equipped with tilt and vibration sieve 16, the connection of 11 top of air hose goes out 17 face tilt and vibration of wind scoop sieve 16, for cooling down tilt and vibration sieve Fertilizer on 16, the tail end of tilt and vibration sieve 16 connect the first conveyer belt 18, and the lower section of tilt and vibration sieve 16 is equipped with the second biography Band 19 is sent, two parts fertilizer for sieving tilt and vibration sieve 16 passes through the first conveyer belt 18 respectively and the second conveyer belt 19 passes It is sent to different positions, is sieved again.
First conveyer belt 18 and the second conveyer belt 19 are by an annular 23 inside both ends of conveyer belt 23 and conveyer belt Roller 24 form, two rollers 24 positioned at 19 the same end of the first conveyer belt 18 and the second conveyer belt are connected to by chain 21 Together, and the roller 24 on the first conveyer belt 18 is by shaft coupling connection motor 22, passes through motor 22 and drives the first transmission simultaneously Band 18 and the work of the second conveyer belt 19, carry out feeding, two rollers 24 of 19 other end of the first conveyer belt 18 and the second conveyer belt It is installed on support frame 20, support frame 20 is welded on the support column of 12 bottom end of feed box.
First conveyer belt 18 and the second conveyer belt 19 pass through on one end that chain 21 connects, and the first conveyer belt 18 is mounted on out The inner bottom of hopper 12, the second conveyer belt 19 are mounted in feed box 12 by support rod, and tilt and vibration sieve 16 is with vibration The inclined filter screen of dynamic device drives filter screen vibration by vibrator, in order to sieve fertilizer, fertilizer is avoided to be deposited in inclination On vibrating screen 16.
Specifically, fertilizer is sent into cooler bin 1 successively by feed hopper 2, the work of servo motor 3 drives 4 turns of main agitator It is dynamic, it is stirred mixing, meanwhile, main agitator 4 drives secondary agitator 5 to rotate together by belt pulley 6 and belt 7, by double Blender is stirred fertilizer together, meanwhile, air-cooler 10 works, and the cold wind of blowout is imported in wind guide chamber 8 by air hose 11, it It is exported afterwards by exhaust vent 9, with the rotation of blender, is sent into inside fertilizer, while blender, carries out from inside to outside cold But it is cooling uniformly to make fertilizer for fertilizer, and under the action of feeding engine 14, cooling fertilizer also passes through feed pipe 13 in cooler bin 1 It imports in feed hopper 2, fertilizer after cooling is mixed together with the fertilizer newly imported, import cooling in cooler bin 1 again, make new Old fertilizer is uniformly mixed, and accelerates cooling efficiency, and material guide port 15 also exports on fertilizer to tilt and vibration sieve 16, carries out pre-sifted by it Point, while motor 22 drives the first conveyer belt 18 and the work of the second conveyer belt 19, and the fertilizer of different stage is respectively transmitted, so as to It is sieved again in being sent to specified position, during pre-screening, what air hose 11 was connected to goes out the inclination vibration of 17 face of wind scoop Dynamic sieve 16 is blown a cold wind over, and is cooled down again to fertilizer thereon, derived fertilizer can be made thoroughly to cool down, in order to sieve fertilizer.
It should be noted that the cooling device of the utility model is stirred simultaneously by main agitator 4 and secondary agitator 5 Fertilizer, the cold wind that air-cooler 10 is blown out are imported in wind guide chamber 8 by air hose 11, are exported later by exhaust vent 9, with blender Rotation, be sent into inside fertilizer, while blender, carry out cooling fertilizer, the feed pipe with feeding engine 14 from inside to outside 13 are sent into fertilizer after cooling in cooler bin 1 in feed hopper 2, are fed again into cooler bin 1, lead together after the fertilizers are mixed with original Material mouth 15 exports cooling fertilizer and sieves 16 pre-screening fertilizer by tilt and vibration, and passes through the first conveyer belt 18 and the second conveyer belt The fertilizer of two different stages is sent into different positions by 19 to be sieved again, and during pre-screening, wind scoop 17 is being just out It blows a cold wind over to tilt and vibration sieve 16, fertilizer thereon is cooled down again, derived fertilizer can be made thoroughly to cool down.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims (7)

1. a kind of bio-feritlizer cooling device, including cooler bin (1), feed box (12), servo motor (3), main agitator (4), The feeding of the stirring cooling system of secondary agitator (5) and air-cooler (10) composition, feed pipe (13) and feeding engine (14) composition is mixed The screening discharge system of collaboration system and tilt and vibration sieve (16), the first conveyer belt (18) and the second conveyer belt (19) composition, It is characterized in that, the bottom end of the feed box (12) is welded with feed box (12), what the feed box (12) was welded by its bottom end Support column support, the top side of the cooler bin (1) are communicated with feed hopper (2), and the side of the feed box (12) is provided with Discharge port.
2. a kind of bio-feritlizer cooling device according to claim 1, which is characterized in that in the stirring cooling system Servo motor (3) is bolted on the top of cooler bin (1), and the output end of the servo motor (3) also passes through shaft coupling It is connected on the main agitator (4) of cooler bin (1), the top of the secondary agitator (5) and main agitator (4) is mounted on belt It takes turns (6), two belt pulleys (6) are linked together by belt (7), and the main agitator (4) and secondary agitator (5) Paddle is provided with wind guide chamber (8) in the main agitator (4) and secondary agitator (5), and on it in being staggered up and down It is provided with several exhaust vents (9), and the tail end of the two is by passing through the bottom end of cooler bin (1), and penetrates in air hose (11), The air hose (11) is mounted on the inner tip of feed box (12), and is connected to the air-cooler (10) installed in feed box (12) side Outlet air end on.
3. a kind of bio-feritlizer cooling device according to claim 2, which is characterized in that the main agitator (4) and pair Blender (5) lower part passes through the bottom end that bearing is fixed on cooler bin (1), and the top of the secondary agitator (5) is also by axis Hold the top for being fixed on cooler bin (1).
4. a kind of bio-feritlizer cooling device according to claim 1, which is characterized in that in the feeding hybrid system Feed pipe (13) is connected to the side-lower in cooler bin (1), and the feeding engine (14) is mounted on feed pipe (13), the feeding The tail end for managing (13) is connected on feed hopper (2).
5. a kind of bio-feritlizer cooling device according to claim 2, which is characterized in that in the screening discharge system, The material guide port (15) of cooler bin (1) bottom end setting is connected to feed box (12), and inclination vibration is equipped with below the material guide port (15) Dynamic sieve (16), air hose (11) the top connection go out wind scoop (17) face tilt and vibration sieve (16), the tilt and vibration sieve (16) tail end connects the first conveyer belt (18), is equipped with the second conveyer belt (19) below the tilt and vibration sieve (16).
6. a kind of bio-feritlizer cooling device according to claim 5, which is characterized in that first conveyer belt (18) and Second conveyer belt (19) is made of the roller (24) of an annular conveyer belt (23) and the internal both ends of conveyer belt (23), position Two rollers (24) in first conveyer belt (18) and the second conveyer belt (19) the same end are connected to one by chain (21) It rises, and the roller (24) on the first conveyer belt (18) passes through shaft coupling connection motor (22), first conveyer belt (18) and the Two rollers (24) of two conveyer belts (19) other end are installed on support frame (20), and support frame as described above (20) is welded on discharging On the support column of case (12) bottom end.
7. a kind of bio-feritlizer cooling device according to claim 6, which is characterized in that first conveyer belt (18) and On the one end of second conveyer belt (19) by chain (21) connection, first conveyer belt (18) is mounted on the interior of feed box (12) Portion bottom end, second conveyer belt (19) are mounted in feed box (12) by support rod.
CN201821952595.0U 2018-11-26 2018-11-26 A kind of bio-feritlizer cooling device Active CN209655851U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821952595.0U CN209655851U (en) 2018-11-26 2018-11-26 A kind of bio-feritlizer cooling device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821952595.0U CN209655851U (en) 2018-11-26 2018-11-26 A kind of bio-feritlizer cooling device

Publications (1)

Publication Number Publication Date
CN209655851U true CN209655851U (en) 2019-11-19

Family

ID=68507602

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821952595.0U Active CN209655851U (en) 2018-11-26 2018-11-26 A kind of bio-feritlizer cooling device

Country Status (1)

Country Link
CN (1) CN209655851U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113267066A (en) * 2021-06-15 2021-08-17 王安琪 Energy-saving cement prepares cooling arrangement for production

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113267066A (en) * 2021-06-15 2021-08-17 王安琪 Energy-saving cement prepares cooling arrangement for production

Similar Documents

Publication Publication Date Title
CN205392310U (en) Organism mixed fertilizers mixing arrangement
CN206751692U (en) Organic fertilizer Rapid Fermentation system
CN210237481U (en) Livestock and poultry manure fermenting device
CN109539822A (en) A kind of bio-feritlizer cooling device
CN110367046A (en) A kind of manufacturing method and equipment of organic Edible Fungi raw material
CN109012319A (en) A kind of efficient liquid manure stirring mixer of lifting type
CN216236751U (en) High-temperature aerobic fermentation type organic fertilizer fermentation tank
CN209655851U (en) A kind of bio-feritlizer cooling device
CN113526993B (en) Intelligent control method and system for treating livestock and poultry manure through roller fermentation composting
CN206469653U (en) Bio-organic fertilizer high efficiency drying device
CN1121500A (en) Biological organic fertilizer making method by quickly fermented liquid manure of livestock and poultry
CN108863660A (en) The processing method of organic chemical fertilizer
CN114749084B (en) Efficient homogenizing device and method for organic fertilizer
CN206828417U (en) A kind of highly effective compost system
CN215250492U (en) Continuous mixing equipment for low-carbon enzymolysis micro-aerobic composting
CN206616157U (en) A kind of organic matter fermentation equipment
CN101838164A (en) Mechanical production system for organic compound fertilizer
CN214065640U (en) Dry conveyor is used in fertilizer production
CN206828414U (en) A kind of highly effective compost agitating device
CN209052594U (en) A kind of removable ring guarantor residents livestock manure fermenting installation
CN208995408U (en) Installation for fermenting is used in a kind of production of organic fertilizer
CN210746026U (en) Farming fertilizer injection unit
CN110683887A (en) Special full-nutrition granular fertilizer for plants and preparation method thereof
CN206828415U (en) A kind of drum-type compost agitating device
JP3318722B2 (en) Method for producing fertilizer and feed using microorganisms and stirring device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant