CN219879581U - Emulsifier is used in production of high phosphorus fertilizer convenient to maintenance - Google Patents

Emulsifier is used in production of high phosphorus fertilizer convenient to maintenance Download PDF

Info

Publication number
CN219879581U
CN219879581U CN202321012976.1U CN202321012976U CN219879581U CN 219879581 U CN219879581 U CN 219879581U CN 202321012976 U CN202321012976 U CN 202321012976U CN 219879581 U CN219879581 U CN 219879581U
Authority
CN
China
Prior art keywords
emulsifying
fence
emulsifier
flange
shearing wheel
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
CN202321012976.1U
Other languages
Chinese (zh)
Inventor
陈燕文
吴佳玲
王宗抗
曾薇
余一清
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.)
Guigang Batian Ecology Co Ltd
Original Assignee
Guigang Batian Ecology 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 Guigang Batian Ecology Co Ltd filed Critical Guigang Batian Ecology Co Ltd
Priority to CN202321012976.1U priority Critical patent/CN219879581U/en
Application granted granted Critical
Publication of CN219879581U publication Critical patent/CN219879581U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Landscapes

  • Fertilizers (AREA)

Abstract

The utility model relates to a high phosphorus fertilizer production is with emulsifier convenient to maintenance, which comprises an outer shell, the shearing wheel, a driving means, emulsifying fence and end cover, be equipped with the emulsion chamber in the shell, the opening part in emulsion chamber is equipped with inwards first flange, the bottom in emulsion chamber is equipped with annular groove, when installing emulsifying fence in the emulsion chamber, only need arrange emulsifying fence in the emulsion chamber, the one end of emulsifying fence can be dismantled and inlay and establish in annular groove, the opposite side of emulsifying fence is equipped with the second flange, last through dismantling fixing device can dismantle the buckle closure at the opening part in emulsion chamber with the end cover, and support the second flange, and make second flange hug closely with first flange, and when dismantling the emulsifying fence from the shell, only need to untie and dismantle fixing device, dismantle the end cover from the shell, finally with emulsifying fence follow the emulsification chamber and dismantle the installation step, very big simplification emulsifying fence's dismantlement, and then greatly reduced the degree of difficulty of maintenance of emulsifier.

Description

Emulsifier is used in production of high phosphorus fertilizer convenient to maintenance
Technical Field
The utility model relates to the technical field of emulsifiers, in particular to an emulsifier convenient to maintain and used for producing high-phosphorus fertilizer.
Background
The emulsifying device is a precise combination through the rotor and stator, and generates strong shearing force in high-speed rotation to realize the functions of mixing, homogenizing, dispersing, crushing and the like, and the emulsifying device is generally used in the production and processing process of the compound fertilizer at present, so that the compound fertilizer slurry is sheared, crushed, stirred and mixed for emulsification, the slurry fluidity is better, the service time of a granulating nozzle is prolonged, and the quality and the production capacity of the compound fertilizer product can be improved.
In chinese patent application No. 201910777331.9, a horizontal emulsion pump is disclosed in patent name "a horizontal emulsion pump", which comprises a base, the top of base is fixed with fore-stock and back support respectively, the top of base is provided with the bearing bracket, the top of fore-stock and back support all is fixed with bearing bracket bottom fixed connection, the inside of bearing bracket is provided with the pump shaft, the lateral wall cover of pump shaft is equipped with two bearing bodies. The second pump cover is fixedly connected with the pump body through the screw, so that the second pump cover is convenient to detach from the pump body, a groove is formed in one end of the shearing wheel, a screw hole is formed in one end of the pump shaft, and the locking nut and the hanging bolt are arranged, so that when the shearing wheel is damaged, the shearing wheel can be conveniently and quickly replaced, a better homogenizing effect can be achieved through the cooperation of the emulsifying fence and the shearing wheel, and a better sealing effect can be achieved through the arrangement of the filling material at the gap between the shaft sleeve and the first pump cover.
In the use process of the horizontal emulsion pump of the patent, slurry is introduced into the emulsion column from the feed inlet and is mixed, homogenized and crushed by the shearing wheel in the emulsion column, and finally the slurry meeting the requirements is exuded from the column groove of the emulsion column, and when the slurry is exuded from the column groove of the emulsion column, some particles with larger particle size in the slurry are extremely easy to block the column groove of the emulsion column, so that the working efficiency of the emulsion pump is greatly reduced, and in the patent, the emulsion column is fixed on the pump body, so that the large particle size particles blocked on the column groove of the emulsion column are extremely inconvenient to clean, therefore, a new emulsifier for producing high-phosphorus fertilizer is needed at present so as to facilitate later maintenance.
Disclosure of Invention
The utility model discloses an emulsifier for producing high-phosphorus fertilizer, which is convenient to maintain, and aims to solve the problem of how to provide a novel emulsifier for producing high-phosphorus fertilizer in the background technology so as to facilitate later maintenance.
In order to solve the technical problems, the following technical scheme is proposed:
the utility model provides a high phosphate fertilizer production is with emulsifier convenient to maintenance, includes shell, shearing mechanism, drive arrangement, emulsification fence and end cover, be equipped with the emulsification chamber in the shell, the opening part in emulsification chamber is equipped with inwards first flange, the bottom in emulsification chamber is equipped with annular groove, the emulsification fence is arranged in the emulsification chamber, the one end of emulsification fence can be dismantled and inlay and establish in the annular groove, the opposite side of emulsification fence is equipped with the second flange, the end cover can be dismantled through dismantling fixing device and cover the opening part in emulsification chamber to support and hold the second flange, and make the second flange with first flange hugs closely;
the emulsifying fence separates the emulsifying cavity to form the stirring cavity inside the emulsifying fence and the finished product cavity outside the emulsifying fence, sieve holes are formed in the side wall of the emulsifying fence, the stirring cavity and the finished product cavity are communicated only through the sieve holes, the shearing wheel is arranged in the shearing cavity, and a rotating shaft of the driving device stretches into the shearing cavity to be connected with the shearing wheel.
Preferably, the rotary shaft is provided with a first thread, a first limiting block and a first stop block sequentially from the end part, the shearing wheel is provided with a first through hole for the rotary shaft to pass through, the inner side wall of the first through hole is provided with a first limiting groove matched with the first limiting block, the first limiting block is arranged in the first limiting groove when the shearing wheel is connected to the rotary shaft, one end part of the shearing wheel is tightly attached to the first stop block, and the first bolt is fixed on the rotary shaft through the first thread and abuts against the other end part of the shearing wheel.
Preferably, the detachable fixing device comprises a fixing piece and a second bolt, the fixing piece is arranged on one side, facing the opening of the emulsifying cavity, of the first flange, the second flange and the end cover are both provided with second through holes for the fixing piece to pass through, and the second bolt is detachably connected to the fixing piece.
Preferably, the side wall of the annular groove is provided with a second limiting groove, one end of the emulsifying fence embedded in the annular groove is provided with a second limiting piece matched with the second limiting groove, and when the emulsifying fence is embedded in the annular groove, the second limiting piece is arranged in the second limiting groove.
Preferably, sealing gaskets are arranged on two sides of the second flange and in the annular groove.
Preferably, the end cover is provided with a slurry feeding hole, a slurry discharging hole is formed in the side wall of the bottom end of the shell, the slurry feeding hole is bent upwards, and the slurry feeding hole protrudes out of the edge of the end cover.
Preferably, the top end of the side wall of the shell is also provided with a visual inspection channel, and the visual inspection channel is communicated with the emulsifying cavity.
Preferably, a detachable transparent sealing cover is further arranged at the opening of the visual inspection channel.
Preferably, the blades of the shearing wheel are of radial structures, and the side walls of the blades are provided with dispersing holes.
Preferably, eight groups of blades are arranged on the shearing wheel, and the frame of the sieve holes is 8mm.
The beneficial effects are that: the utility model relates to a high phosphate fertilizer production is with emulsifier convenient to maintenance, which comprises a housing, the shearing wheel, a driving device, emulsifying fence and end cover, be equipped with the emulsion chamber in the shell, the opening part in emulsion chamber is equipped with inwards first flange, the bottom in emulsion chamber is equipped with annular groove, when installing emulsifying fence in emulsion chamber, only need place emulsifying fence in emulsion chamber, emulsifying fence's one end can dismantle and inlay and establish in annular groove, emulsifying fence's opposite side is equipped with the second flange, last through can dismantle fixing device with the end cover can dismantle the buckle closure in emulsifying chamber's opening part, and support and hold the second flange, and make second flange and first flange hug closely, and when dismantling emulsifying fence from the shell, only need to untie and dismantle fixing device, dismantle the end cover from the shell, finally with emulsifying fence pull out from emulsifying chamber can accomplish the dismantlement work of emulsifying fence, very big simplification emulsifying fence's dismantlement installation step, and then greatly reduced the maintenance degree of difficulty of emulsifying ware; secondly, when the buckle closure can be dismantled at the opening of emulsification chamber to the end cover, the one end of emulsification fence can be dismantled and inlay and establish in the annular groove, the opposite side is hugged closely with first flange, and then make emulsification chamber separated by emulsification fence and form the inside stirring chamber of emulsification fence and the outside finished product chamber of emulsification fence, emulsification fence lateral wall is equipped with the sieve mesh, stirring chamber and finished product chamber only communicate through the sieve mesh, shearing intracavity is arranged in to the shearing wheel, drive arrangement's axis of rotation stretches into the shearing intracavity and is connected with the shearing wheel, consequently in the course of the work, only broken into the raw materials granule that accords with the demand size by the shearing wheel can pass the sieve mesh entering finished product intracavity of emulsification fence, the very big leakproofness of assurance emulsification fence and shell connecting portion of design of visual annular groove and first flange from this.
Drawings
FIG. 1 is a diagram of the overall structure of the present utility model;
FIG. 2 is an exploded view of the present utility model;
FIG. 3 is a cross-sectional view of the overall structure of the present utility model;
FIG. 4 is an enlarged partial view of portion A of FIG. 3 in accordance with the present utility model;
FIG. 5 is an enlarged partial view of portion B of FIG. 3 of the present utility model;
FIG. 6 is a front view of a housing portion of the present utility model;
FIG. 7 is a cross-sectional view of the housing of the present utility model;
fig. 8 is an enlarged partial view of section C of fig. 7 of the present utility model.
The main reference numerals are as follows:
1. a housing; 2. a shearing wheel; 3. an emulsifying column; 31. a second flange; 32. a second limiting piece; 4. an end cap; 5. an annular groove; 51. the second limit groove; 6. a first flange; 7. a detachable fixing device; 71. a fixing member; 72. a second bolt; 8. a rotating shaft; 81. a first bolt; 82. a first limiting block; 83. a first stopper; 9. a slurry feed port; 10. a slurry discharge port; 11. a visual inspection channel; 12. and a transparent sealing cover.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
The following detailed description of the embodiments of the utility model, provided in the accompanying drawings, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The utility model relates to an emulsifying device for producing high-phosphorus fertilizer, which is convenient to maintain, referring to fig. 1-8, and comprises a shell 1, a shearing wheel 2, a driving device, an emulsifying column 3 and an end cover 4, wherein an emulsifying cavity is arranged in the shell 1, a first inward protruding edge 6 is arranged at the opening of the emulsifying cavity, an annular groove 5 is arranged at the bottom end of the emulsifying cavity, when the emulsifying column 3 is arranged in the emulsifying cavity, only the emulsifying column 3 is arranged in the emulsifying cavity, one end of the emulsifying column 3 is detachably embedded in the annular groove 5, a second protruding edge 31 is arranged at the other side of the emulsifying column 3, finally, the end cover 4 is detachably buckled at the opening of the emulsifying cavity through a detachable fixing device 7, the second protruding edge 31 is abutted against the first protruding edge 6, and when the emulsifying column 3 is required to be detached from the shell 1, the emulsifying column 3 is detached from the emulsifying cavity only by unlocking the detachable fixing device 7, and finally, the emulsifying column 3 is detached from the emulsifying cavity, so that the emulsifying column 3 is greatly simplified in detachment and the repairing step is greatly reduced; secondly, when the end cover 4 can be dismantled the buckle closure and be in the opening of emulsification chamber, the one end of emulsification column 3 can be dismantled and inlay and establish in annular groove 5, the opposite side is hugged closely with first flange 6, and then make emulsification chamber by emulsification column 3 separate the inside stirring chamber of formation emulsification column 3 and the outside finished product chamber of emulsification column 3, emulsification column 3 lateral wall is equipped with the sieve mesh, stirring chamber and finished product chamber only pass through the sieve mesh intercommunication, shearing wheel 2 is arranged in the shearing intracavity, drive arrangement's axis of rotation 8 stretches into the shearing intracavity and is connected with shearing wheel 2, consequently in the course of the work, only by shearing wheel 2 broken into the raw materials granule that accords with the demand size can pass the sieve mesh entering finished product intracavity of emulsification column 3, the very big leakproofness of guaranteeing emulsification column 3 and shell 1 connecting portion of design of annular groove 5 and first flange 6 from this.
In this embodiment, still include first bolt 81, axis of rotation 8 is equipped with first screw thread, first stopper 82 and first dog 83 in proper order from the tip, shearing wheel 2 is equipped with the first through-hole that is used for axis of rotation 8 to pass, the inside wall of first through-hole is equipped with the first spacing groove with first stopper 82 looks adaptation, when shearing wheel 2 is connected on axis of rotation 8, first stopper 82 is arranged in first spacing inslot, one end and first dog 83 of shearing wheel 2 are hugged closely, first bolt 81 passes through first thread fastening on axis of rotation 8 to support with another tip of shearing wheel 2 and hold, through dismantling the connection between first bolt 81, axis of rotation 8 and shearing wheel 2 three, make when needs overhauld emulsification fence 3 or shearing wheel 2, dismantle shearing wheel 2 through dismantling first bolt 81 can be quick, the maintenance degree of difficulty of the emulsifier has further been reduced.
In this embodiment, the detachable fixing device 7 includes a fixing piece 71 and a second bolt 72, the fixing piece 71 is disposed on one side of the first flange 6 facing the emulsification cavity opening, the second flange 31 and the end cover 4 are both provided with a second through hole for the fixing piece 71 to pass through, the second bolt 72 is detachably connected to the fixing piece 71, in the use process, the fixing piece 71 not only can be used for firmly fixing the end cover 4 on the housing 1, the fixing piece 71 can also play a limiting role on the emulsification column 3, the emulsification column 3 is prevented from shaking or shifting during the rotation of the shearing wheel 2, and the sealing phenomenon between the emulsification column 3 and the housing 1 is further affected.
In this embodiment, the lateral wall of annular groove 5 is equipped with second spacing recess 51, and the one end of emulsifying fence 3 inlaying and establishing in annular groove 5 is equipped with the second locating part 32 with the looks adaptation of second spacing recess 51, and when emulsifying fence 3 inlays and establishes in annular groove 5, second locating part 32 is arranged in second spacing recess 51, has further increased emulsifying fence 3's stability in the course of the work, prevents shearing wheel 2 and takes place shake or skew at the in-process emulsifying fence 3, and then influences the phenomenon appearance of the leakproofness between emulsifying fence 3 and shell 1.
In this embodiment, sealing gaskets are arranged on both sides of the second flange 31 and in the annular groove 5, so that the tightness between the shearing wheel 2 and the housing 1 and the end cover 4 is further increased.
In this embodiment, end cover 4 is equipped with thick liquids feed inlet 9, the lateral wall of shell 1 bottom is equipped with thick liquids discharge gate 10, in the use, thick liquids follow thick liquids feed inlet 9 and then in the stirring chamber, and the thick liquids that accords with the demand in the stirring chamber pass the screen cloth of emulsification fence 3 and then the finished product chamber, the thick liquids in finished product chamber pile up the lower extreme in the finished product chamber under the effect of gravity, and export from the thick liquids discharge gate, when the end cover is dismantled to needs, need break off thick liquids feed inlet and the equipment of last level earlier, and because thick liquids feed inlet upwards bends the setting, and the marginal position of protruding end cover of thick liquids feed inlet, consequently the connecting portion of last level equipment and thick liquids feed inlet can not shine into the influence to the removal of end cover.
In this embodiment, the top of shell 1 lateral wall still looks at and examines passageway 11, look at passageway 11 and emulsification chamber intercommunication, look at the opening part of examining passageway 11 and still be equipped with detachable transparent sealed lid 12, look at passageway 11 and transparent sealed lid 12 through looking at and can look over the condition in emulsification chamber under not carrying out any operation to the emulsifier, and then judge whether need overhaul the emulsifier, secondly, because transparent sealed lid 12 is detachable the setting in looking at the opening part of examining passageway 11, consequently under the condition that emulsification column 3 blocks up slightly, can dredge the maintenance to emulsification column 3 through looking at passageway 11, further reduced the maintenance degree of difficulty of emulsifier.
In this embodiment, the blade of shearing wheel is radial structure, and the lateral wall of blade is equipped with the dispersion hole, and then reduces the resistance that the shearing wheel received when rotating the blade.
Preferably, the shearing wheel is provided with eight groups of blades, the groove frame of the sieve holes is 8mm, and the homogenizing effect is greatly improved.
The above disclosure is only a few specific embodiments of the present utility model, but the present utility model is not limited thereto, and any changes that can be thought by those skilled in the art should fall within the protection scope of the present utility model.

Claims (10)

1. The utility model provides a high phosphate fertilizer production is with emulsifier convenient to maintenance, its characterized in that includes shell, shearing mechanism, drive arrangement, emulsifying fence and end cover, be equipped with the emulsification chamber in the shell, the opening part in emulsification chamber is equipped with inwards first flange, the bottom in emulsification chamber is equipped with the annular groove, emulsifying fence is arranged in the emulsification chamber, emulsifying fence's one end is dismantled and is inlayed and establish in the annular groove, emulsifying fence's opposite side is equipped with the second flange, the end cover can be dismantled through dismantling fixing device and cover the opening part in emulsification chamber, and support and hold the second flange, and make the second flange with first flange hugs closely;
the emulsifying fence separates the emulsifying cavity to form the stirring cavity inside the emulsifying fence and the finished product cavity outside the emulsifying fence, sieve holes are formed in the side wall of the emulsifying fence, the stirring cavity and the finished product cavity are communicated only through the sieve holes, the shearing wheel is arranged in the emulsifying cavity, and a rotating shaft of the driving device stretches into the emulsifying cavity to be connected with the shearing wheel.
2. The emulsifier for producing high-phosphorus fertilizer convenient to maintain according to claim 1, further comprising a first bolt, wherein a first thread, a first limiting block and a first stop block are sequentially arranged on the rotating shaft from the end part, the shearing wheel is provided with a first through hole for the rotating shaft to pass through, a first limiting groove matched with the first limiting block is formed in the inner side wall of the first through hole, when the shearing wheel is connected to the rotating shaft, the first limiting block is arranged in the first limiting groove, one end part of the shearing wheel is clung to the first stop block, and the first bolt is fixed on the rotating shaft through the first thread and abuts against the other end part of the shearing wheel.
3. The emulsifier for producing high-phosphorus fertilizer convenient to maintain according to claim 1, wherein the detachable fixing device comprises a fixing piece and a second bolt, the fixing piece is arranged on one side of the first protruding edge, which faces the opening of the emulsifying cavity, the second protruding edge and the end cover are respectively provided with a second through hole for the fixing piece to pass through, and the second bolt is detachably connected to the fixing piece.
4. The emulsifier for producing high-phosphorus fertilizer convenient to maintain according to claim 1, wherein a second limiting groove is arranged on the side wall of the annular groove, a second limiting piece matched with the second limiting groove is arranged at one end of the emulsifying fence embedded in the annular groove, and the second limiting piece is arranged in the second limiting groove when the emulsifying fence is embedded in the annular groove.
5. The easy-to-repair emulsifier for high phosphate fertilizer production of claim 1 wherein sealing gaskets are provided on both sides of the second flange and in the annular groove.
6. The emulsifier for producing high-phosphorus fertilizer convenient to maintain according to claim 1, wherein the end cover is provided with a slurry feeding hole, a slurry discharging hole is formed in the side wall of the bottom end of the shell, the slurry feeding hole is bent upwards, and the slurry feeding hole protrudes out of the edge position of the end cover.
7. The easy-to-repair emulsifier for high phosphate fertilizer production of claim 1 wherein the top end of the housing sidewall further comprises a viewing passage, the viewing passage being in communication with the emulsification chamber.
8. The emulsifier for producing high-phosphorus fertilizer with convenient maintenance according to claim 7, wherein a detachable transparent sealing cover is further arranged at the opening of the visual inspection channel.
9. The emulsifier for producing high phosphate fertilizer convenient to maintain according to claim 1, wherein the blades of the shearing wheel are in a radial structure, and the side walls of the blades are provided with dispersion holes.
10. The emulsifier for producing high-phosphorus fertilizer convenient to maintain according to claim 9, wherein eight groups of blades are arranged on the shearing wheel, and the groove frame of the sieve holes is 8mm.
CN202321012976.1U 2023-04-28 2023-04-28 Emulsifier is used in production of high phosphorus fertilizer convenient to maintenance Active CN219879581U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321012976.1U CN219879581U (en) 2023-04-28 2023-04-28 Emulsifier is used in production of high phosphorus fertilizer convenient to maintenance

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321012976.1U CN219879581U (en) 2023-04-28 2023-04-28 Emulsifier is used in production of high phosphorus fertilizer convenient to maintenance

Publications (1)

Publication Number Publication Date
CN219879581U true CN219879581U (en) 2023-10-24

Family

ID=88405125

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321012976.1U Active CN219879581U (en) 2023-04-28 2023-04-28 Emulsifier is used in production of high phosphorus fertilizer convenient to maintenance

Country Status (1)

Country Link
CN (1) CN219879581U (en)

Similar Documents

Publication Publication Date Title
CN219879581U (en) Emulsifier is used in production of high phosphorus fertilizer convenient to maintenance
CN208340247U (en) A kind of water paint dregs filter
CN210357028U (en) Powder coating mixer
WO2018066386A1 (en) Crusher with stirring function
CN108435062B (en) Can dismantle large-scale compounding rabbling mechanism
CN210544938U (en) Cosmetic emulsifying pot convenient for adding fragrance agent
CN209612698U (en) Finishing material mixing arrangement
CN209188635U (en) A kind of civil engineering material-stirring device
CN214159342U (en) Mixing arrangement for raw materials medicine
CN205308186U (en) Multilayer makes up formula emulsification unit and uses its emulsion machine
CN210449025U (en) Agitating unit is used in production of vegetation regulator
CN107335515A (en) A kind of broken mud device of the higher level of novel double-stage vacuum extruding machine
CN114160004A (en) Waterproof coating system of processing
CN214382671U (en) Hybrid automatic feeding machine
CN220277199U (en) Rubber mill for producing and mixing sparassis crispa magma
CN207187925U (en) A kind of broken mud device of the higher level of novel double-stage vacuum extruding machine
CN112314784A (en) Improved fish meal and application thereof in feed
CN208018505U (en) A kind of paint stirring machine
CN205313444U (en) Novel titanium dioxide solution preparation system
CN216756124U (en) A agitated vessel for pumpkin processing equipment
CN205269803U (en) Unipolar single -disk material dispersion jar
CN210021879U (en) Dispersion jar
CN220316664U (en) Distributor feed hopper
CN211636073U (en) Raw materials mixing bin of misce bene
CN211913563U (en) Multidirectional motion mixer

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant