CN208436523U - A kind of ceramic wafer cleaning system - Google Patents

A kind of ceramic wafer cleaning system Download PDF

Info

Publication number
CN208436523U
CN208436523U CN201821176626.8U CN201821176626U CN208436523U CN 208436523 U CN208436523 U CN 208436523U CN 201821176626 U CN201821176626 U CN 201821176626U CN 208436523 U CN208436523 U CN 208436523U
Authority
CN
China
Prior art keywords
ceramic wafer
acid
rinsing bowl
hanging
cleaning system
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
CN201821176626.8U
Other languages
Chinese (zh)
Inventor
孙海波
盖杰涛
王舰
程贤慧
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.)
Yantai Nuclear Environmental Protection Equipment Co Ltd
Original Assignee
Yantai Nuclear Environmental Protection Equipment 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 Yantai Nuclear Environmental Protection Equipment Co Ltd filed Critical Yantai Nuclear Environmental Protection Equipment Co Ltd
Priority to CN201821176626.8U priority Critical patent/CN208436523U/en
Application granted granted Critical
Publication of CN208436523U publication Critical patent/CN208436523U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model is a kind of ceramic wafer cleaning system, including sour bulb apparatus and water washing device, sour bulb apparatus includes acid bubble slot, mounting part of the mounting to the ceramic wafer of acid bubble processing is equipped in acid bubble slot, loading part includes support bar and hanging rod, support bar rides upon at the upper end opening of acid bubble slot, support bar bottom is equipped with several piece hanging plate, there are the placement sections that spacing forms ceramic wafer between adjacent two pieces of hanging plates, and hanging hole corresponding with pilot hole is equipped on every piece of hanging plate, hanging rod is located in hanging hole and crosses all hanging plates;Water washing device includes rinsing bowl, multiple ultrasonic oscillator boxes are equipped in rinsing bowl, rinsing bowl between two neighboring ultrasonic oscillator box is equipped with fixed acid bubble treated the fixing piece of ceramic wafer, air inlet pipe is equipped with above rinsing bowl, air inlet pipe is detachably connected by locating piece and rinsing bowl, air inlet pipe is equipped with exhaust pipe, and exhaust pipe is equipped with exhaust valve, is socketed with and the matched connecting sleeve of the water outlet of ceramic wafer on exhaust pipe.The cleaning effect of the cleaning system is good.

Description

A kind of ceramic wafer cleaning system
Technical field
The utility model belongs to ceramic wafer cleaning equipment technical field, and in particular to a kind of ceramic wafer cleaning system.
Background technique
Ceramic wafer is also known as ceramic filtration membrane, ceramic plate, ceramic filter plate, filter plate etc., is by corundum, silicon carbide etc. through special process Manufactured Novel filtration medium is the core building block of ceramic filter.Ceramic wafer has been widely used for mine concentrate The separation of solid and liquid of the industries such as filtering means dehydration and coal, fine chemistry industry, papermaking, pharmacy, chemical fibre, food, environmental protection.Due to using Cheng Zhong, the micropore of ceramic wafer are easy to be blocked, and therefore, it is necessary to periodic cleanings.
The equipment of existing cleaning ceramic plate is mainly pickling tube, i.e., ceramic wafer to be cleaned is directly placed into pickling tube and is used Acid soak, meanwhile, it assists cleaning using supersonic generator.However, this cleaning way can make to be attached to ceramic plate surface Or the material being present in micropore directly drops in pickling tube, is unfavorable for the recycling of acid solution, moreover, in the above process In, the time of contact of ceramic wafer and acid solution is longer, is easy to appear that not inhale ore pulp, blockage of the micro orifice serious etc. existing in subsequent use As the final normal work for influencing ceramic filter reduces working efficiency.
Summary of the invention
The utility model in view of the above shortcomings of the prior art, provide it is a kind of it is easy to use, cleaning effect is preferable, acid solution is sharp With the high ceramic wafer cleaning system of rate.
Technical problem to be solved in the utility model is achieved through the following technical solutions.The utility model is one Kind ceramic wafer cleaning system, the ceramic wafer include the cavity being located in ceramic wafer, and the water outlet being connected to cavity, ceramics Pilot hole is provided on plate, its main feature is that, which includes sour bulb apparatus and water washing device, sour bulb apparatus include opening up Acid bubble slot, acid bubble slot in be equipped with mounting to acid bubble processing ceramic wafer mounting part, mounting part include support bar and hanging rod, hold Pressure pin rides upon at the upper end opening of acid bubble slot, and support bar bottom is connected with several piece hanging plate, between adjacent two pieces of hanging plates there are Away from the placement section formed to the sour ceramic wafer for steeping processing, and the extension being correspondingly arranged with the pilot hole is equipped on every piece of hanging plate Hole, hanging rod are located in hanging hole and cross all hanging plates;
The water washing device includes opening up rinsing bowl, is equipped with multiple ultrasonic oscillator boxes in rinsing bowl, and adjacent two Rinsing bowl between a ultrasonic oscillator box is equipped with fixed acid bubble treated the fixing piece of ceramic wafer, is equipped with above rinsing bowl Air inlet pipe, air inlet pipe are detachably connected by locating piece and rinsing bowl, and air inlet pipe is equipped with and is vented correspondingly with fixing piece Pipe, exhaust pipe are equipped with exhaust valve, the water outlet of the ceramic wafer fixed with fixture are socketed on the exhaust pipe on the outside of exhaust valve The matched connecting sleeve of mouth.
Further, the sour bulb apparatus further includes opening up drip acid tank, the outer wall phase of drip acid tank and acid bubble slot It connects, drip acid tank is equipped with the bracket for rinsing the water pipe of the ceramic wafer taken out from acid bubble slot, and bracket includes vertically being located at Water tank The connecting rod of upper surface, connecting rod are equipped with the fixed frame for carrying the water pipe upwards.
Further, the fixed frame is the U-shaped pipe fitting of bending, and it is stifled to be respectively equipped with ball-type at two nozzles of the pipe fitting Head.
Further, acid bubble slot, rinsing bowl and the drip acid tank bottom are equipped with sewage pipe, and sewage pipe is equipped with blowdown Valve.
Further, the pilot hole is two, and ceramics are symmetricly set on centered on the central axis of ceramic wafer On plate.
Further, the fixing piece includes that setting is on rinsing bowl inner wall and solid correspondingly with the pilot hole Fixed board component, fixed plate component include fastening bolt and two pieces of first fixed plates disposed in parallel, the second fixed plate, and first and second Fixed plate is arranged in parallel and the gap between the two fixed plates forms the placement section of acid bubble treated ceramic wafer, first, The bolt hole with fastening bolt cooperation is correspondingly provided in two fixed plates, fastening bolt sequentially passes through the spiral shell in the first and second fixed plate Keyhole is simultaneously connected and fixed with nut.
Further, one end of the air inlet pipe is the inlet end for connecting gas source, and the other end is closed end, and rinsing bowl is set Below air inlet pipe between inlet end and closed end, the air inlet pipe between rinsing bowl and inlet end is equipped with intake valve.
Further, the locating piece includes U bolt and U bolt seat, and U bolt seat is located at rinsing bowl along air inlet Outside the both ends of pipe extending direction, U bolt seat is equipped with the bolt hole with the dynamic cooperation of U bolt, and U bolt passes through U-shaped spiral shell The bolt hole of bolt seat is simultaneously connected and fixed with nut.
Further, acid bubble slot, rinsing bowl and the drip acid tank bottom are equipped with supporting leg.
Further, the supporting leg lower part is equipped with traveling wheel.
Compared with prior art, sour bulb apparatus and water washing device is arranged in the utility model, and acid is steeped to and washed two steps point It leaves, not only shortens acid solution and ceramic wafer time of contact, extend the service life of ceramic wafer, also considerably reduce from pottery Porcelain plate drops to the impurity inventory in acid solution, improves the recycling rate of waterused of acid solution, reduces cleaning cost.Moreover, in water It washes in processing, the material remained on ceramic wafer is removed using the effect of ultrasonic wave combination blow-back, due to every row Exhaust valve is equipped on tracheae, when an a certain or a few exhaust pipe do not need in use, can by corresponding exhaust valve closure, with Guarantee that the gas of other exhaust pipes discharge can generate enough pressure to the cavity of ceramic wafer, the material of attachment is removed dry Only.At the same time it can also enter the air-flow of ceramic wafer cavity by being vented valve regulation according to the inventory size adhered on ceramic wafer Size is measured, is conducive to improve cleaning efficiency.The structure design of the utility model is reasonable, improves cleaning effect.
Detailed description of the invention
Fig. 1 is the main view of the utility model acid bulb apparatus;
Fig. 2 is the top view of the utility model acid bulb apparatus;
Fig. 3 is the left view of the utility model acid bulb apparatus;
Fig. 4 is the perspective view of the utility model water washing device;
Fig. 5 is the cross-sectional view of Section A-A in Fig. 4;
Specific embodiment
Specific embodiment of the present utility model is described in detail with reference to the accompanying drawings.
As shown in Figs. 1-5, a kind of 5 cleaning system of ceramic wafer, ceramic wafer 5 include the cavity that is located in ceramic wafer 5 (in figure not Show) and the water outlet 502 that is connected to cavity, it is provided with for ceramic wafer 5 to be mounted on ceramic filter on ceramic wafer 5 Two pilot holes 501, two pilot holes 501 are symmetrically arranged at 5 top of ceramic wafer centered on the central axis of ceramic wafer 5, this is clear Washing system includes sour bulb apparatus and water washing device, and sour bulb apparatus includes opening up acid bubble slot 4, is equipped with mounting in acid bubble slot 4 The mounting part of ceramic wafer 5 to acid bubble processing, mounting part include support bar 2 and hanging rod 7, and support bar 2 rides upon the upper of acid bubble slot 4 At end opening, 2 bottom of support bar is connected with several piece hanging plate 3, is formed between adjacent two pieces of hanging plates 3 there are spacing and steeps processing to acid The placement section of ceramic wafer 5, and the hanging hole 301 being correspondingly arranged with pilot hole 501 is equipped on every piece of hanging plate 3, hanging rod 7 is located at hanging hole In 301 and cross all hanging plates 3;
Water washing device includes opening up rinsing bowl 10, and multiple ultrasonic oscillator boxes 13 are equipped in rinsing bowl 10, adjacent Rinsing bowl 10 between two ultrasonic oscillator boxes 13 is equipped with fixed acid bubble treated the fixing piece of ceramic wafer 5, rinsing bowl 10 tops are equipped with air inlet pipe 9, and air inlet pipe 9 is detachably connected by locating piece with rinsing bowl 10, and air inlet pipe 9 is equipped with and fixing piece One-to-one exhaust pipe 17, exhaust pipe 17 are equipped with exhaust valve 16, are socketed on the exhaust pipe 17 in 16 outside of exhaust valve and quilt The matched connecting sleeve 15 of water outlet 502 of the fixed ceramic wafer 5 of fixing piece.
Above-mentioned ceramic wafer 5 can be to be disclosed or commercially available any one can be applied to the utility model in the prior art Ceramic wafer.
As shown in figure 3, hanging rod 7 can also be replaced with Hanging bolt 8, before the processing of sour bubble, each ceramic wafer 5 is placed in two pieces Between hanging plate 3, Hanging bolt 8 is consolidated after crossing the pilot hole 501 on the ceramic wafer 5 between all hanging plates 3 and hanging plate 3 with nut It is fixed.
In some embodiments, lift to move handle (not shown) can also be set on support bar 2, facilitate artificial lift to move Ceramic wafer 5.
In some embodiments, multiple lifting lug (not shown)s can also be set on support bar 2, be easy to use airline Equal suspentions load part.
Ultrasonic oscillator box 13 is arranged four, five, six or more, and ultrasonic oscillator box 13 is commercially available mature production Product, this will not be repeated here.
Above-mentioned connecting sleeve 15 is preferably hose.
In view of also remaining the higher acid solution of concentration from the ceramic wafer 5 taken out in acid bubble slot 4, it is likely that can accidentally injure Worker, therefore sour bulb apparatus is set as including acid bubble slot 4 and the structure for dripping acid tank 1, to reduce the acid solution amount on ceramic wafer 5. Drip acid tank 1 can be set to connect or isolated groove-like structure with the outer wall of acid bubble slot 4, preferably connect with acid bubble slot 4, conveniently Ceramic wafer 5 is directly ridden upon on drip acid tank 1 after taking out in acid bubble slot 4, stroke is shorter, can both splash to avoid acid solution to worker With, it also can reduce labor intensity.And the drip acid tank 1 added is also used as the caching in the entire cleaning process of ceramic wafer 5 Device not only get ready for next process, but also waited for that the ceramic wafer 5 of acid bubble processing leaves space for next group.
It certainly, can also be with clearly in order to further decrease the acid solution amount on ceramic wafer 5 or be diluted to acid solution thereon Water carries out preliminary flushing to ceramic wafer 5.Therefore, the bracket of carrying water pipe is set on drip acid tank 1, and bracket includes vertically being located at drip The connecting rod 23 of 1 upper surface of acid tank, connecting rod 23 are equipped with the fixed frame 24 for carrying the water pipe upwards, convenient for picking and placing water pipe.
Fixed frame 24 is the U-shaped pipe fitting of bending, ball-type plug 25 is respectively equipped at two nozzles of the pipe fitting, will manage Two nozzles of part block closing.
Acid bubble slot 4, rinsing bowl 10 and drip 1 bottom of acid tank are equipped with sewage pipe 21, and sewage pipe 21 is equipped with blowdown valve 22.
Fixing piece include be arranged on 10 inner wall of rinsing bowl and with the one-to-one fixed plate component of the pilot hole 501, Fixed plate component includes fastening bolt 19 and two pieces of first fixed plates 18 disposed in parallel, the second fixed plate 20, and first and second is fixed Plate is arranged in parallel and the gap between the two fixed plates forms the placement section of acid bubble treated ceramic wafer 5, solid first and second The bolt hole (not shown) cooperated with fastening bolt 19 is correspondingly provided on fixed board, fastening bolt 19 sequentially passes through first and second Bolt hole in fixed plate is simultaneously connected and fixed with nut.Above-mentioned fixing piece directly utilizes ceramic wafer 5 to have pilot hole 501, and this is special Property, fastening bolt 19 is sequentially passed through into the bolt hole in the first fixed plate 18, the pilot hole 501 on ceramic wafer 5, the second fixed plate It is secured with nuts after bolt hole on 20, porcelain plate is fixed between the first fixed plate 18 and the second fixed plate 20 with this, operate It is convenient.
One end of air inlet pipe 9 is the inlet end (not marking in figure) for connecting gas source, and the other end is closed end 901, rinsing bowl 10 are located at 9 lower section of air inlet pipe between inlet end and closed end 901, and the air inlet pipe 9 between rinsing bowl 10 and inlet end is equipped with Intake valve 14.
Locating piece includes U bolt 11 and U bolt seat 12, and U bolt seat 12 is located at rinsing bowl 10 and extends along air inlet pipe 9 Outside the both ends in direction, U bolt seat 12 is equipped with the bolt hole (not shown) with the dynamic cooperation of U bolt 11, U bolt 11 pass through the bolt hole of U bolt seat 12 and are connected and fixed with nut.Ceramic wafer 5 or needs after needing to place acid soak When taking out the ceramic wafer 5 after cleaning, U bolt 11 can be unloaded, air inlet pipe 9 is removed, then is operated.
Acid bubble slot 4, rinsing bowl 10 and drip 1 bottom of acid tank are equipped with supporting leg 6, make acid bubble slot 4, rinsing bowl 10 and drip acid tank 1 There are spacing between bottom and ground, convenient for sewage pipe 21 is arranged in acid bubble slot 4, rinsing bowl 10 and drip 1 bottom of acid tank.
In order to facilitate mobile acid bubble slot 4, rinsing bowl 10 and drip acid tank 1, traveling wheel can be set in 6 lower part of supporting leg.
It can be operated as follows when the utility model is used:
1, sour bubble processing: the ceramic wafer 5 to acid bubble processing is placed between adjacent two pieces of hanging plates 3, crosses hanging plate with hanging rod 7 After the pilot hole 501 on hanging hole 301 and ceramic wafer 5 on 3, mounting part is ridden upon in acid bubble slot 4, and is guaranteed in acid bubble slot 4 Acid solution submerge ceramic wafer 5;
2, drip acid and preliminary cleaning treatment: after impregnating one end time, by ceramic wafer 5 from acid bubble 4 lift to move of slot to drip acid tank 1 In, and 5 surface of ceramic wafer is tentatively cleaned using water pipe, the sewage pipe 21 that the waste water after cleaning passes through drip 1 bottom of acid tank Discharge;
3, washing process: and then put the ceramic wafer 5 after preliminary cleaning into rinsing bowl 10, and consolidated by fixing piece It is fixed, clear water is added into rinsing bowl 10, until submergence ceramic wafer 5;Recycle locating piece that air inlet pipe 9 is fixed on rinsing bowl 10 On, and 15 lower end of each connecting sleeve on exhaust pipe 17 is socketed on the water outlet 502 for the ceramic wafer 5 being correspondingly arranged;It opens Ultrasonic oscillator box 13, intake valve 14 and exhaust valve 16, are passed through gas into ceramic wafer 5, start to clean ceramic wafer 5; After cleaning, ultrasonic oscillator box 13, intake valve 14 and exhaust valve 16 are closed, blowdown valve 22 is opened, in rinsing bowl 10 After water discharge, ceramic wafer 5 is removed.
Only as described above, only specific embodiment of the utility model, when the utility model cannot be limited with this The range of implementation, therefore the displacement of its equivalent assemblies, or according to equivalent changes and modifications made by the utility model patent protection scope, It should still belong to the scope that the utility model claims book is covered.

Claims (10)

1. a kind of ceramic wafer cleaning system, the ceramic wafer includes the cavity being located in ceramic wafer, and be connected to cavity go out The mouth of a river is provided with pilot hole on ceramic wafer, it is characterised in that: the cleaning system includes sour bulb apparatus and water washing device, sour bulb apparatus Including opening up acid bubble slot, mounting part of the mounting to the ceramic wafer of acid bubble processing is equipped in acid bubble slot, mounting part includes holding Pressure pin and hanging rod, support bar ride upon at the upper end opening of acid bubble slot, and support bar bottom is connected with several piece hanging plate, adjacent two pieces of extensions There are the placement sections that spacing forms the ceramic wafer to acid bubble processing between plate, and are equipped on every piece of hanging plate and the pilot hole pair The hanging hole that should be arranged, hanging rod are located in hanging hole and cross all hanging plates;
The water washing device includes opening up rinsing bowl, and multiple ultrasonic oscillator boxes are equipped in rinsing bowl, two neighboring super Rinsing bowl between acoustic wave transducer box is equipped with fixed acid bubble treated the fixing piece of ceramic wafer, is equipped with air inlet above rinsing bowl Pipe, air inlet pipe are detachably connected by locating piece and rinsing bowl, and air inlet pipe is equipped with and the one-to-one exhaust pipe of fixing piece, row Tracheae is equipped with exhaust valve, and the water outlet that the ceramic wafer fixed with fixture is socketed on the exhaust pipe on the outside of exhaust valve matches Connecting sleeve.
2. ceramic wafer cleaning system according to claim 1, it is characterised in that: the sour bulb apparatus further includes opening court On drip acid tank, drip acid tank connects with the outer wall of acid bubble slot, and drip acid tank, which is equipped with to rinse from acid, steeps the ceramic wafer taken out in slot The bracket of water pipe, bracket include the connecting rod for being vertically located at Water tank upper surface, and connecting rod is equipped with the carrying water pipe upwards Fixed frame.
3. ceramic wafer cleaning system according to claim 2, it is characterised in that: the fixed frame is that bending is U-shaped Pipe fitting is respectively equipped with ball-type plug at two nozzles of the pipe fitting.
4. ceramic wafer cleaning system according to claim 2, it is characterised in that: acid bubble slot, rinsing bowl and the drip acid Trench bottom is equipped with sewage pipe, and sewage pipe is equipped with blowdown valve.
5. ceramic wafer cleaning system according to claim 1, it is characterised in that: the pilot hole is two, and with pottery It is symmetricly set on ceramic wafer centered on the central axis of porcelain plate.
6. ceramic wafer cleaning system according to claim 5, it is characterised in that: the fixing piece includes that setting is being washed On slot inner wall and with the one-to-one fixed plate component of the pilot hole, fixed plate component, which includes that fastening bolt is parallel with two pieces, to be set The first fixed plate, the second fixed plate set, the first and second fixed plate is arranged in parallel and the gap between the two fixed plates forms acid The placement section of bubble treated ceramic wafer is correspondingly provided with the bolt hole with fastening bolt cooperation, fastening in the first and second fixed plate Bolt hole in the first and second fixed plate of screw bolt passes is simultaneously connected and fixed with nut.
7. ceramic wafer cleaning system according to claim 1, it is characterised in that: one end of the air inlet pipe is connection gas The inlet end in source, the other end are closed end, and rinsing bowl is located at below the air inlet pipe between inlet end and closed end, rinsing bowl with into Air inlet pipe between gas end is equipped with intake valve.
8. ceramic wafer cleaning system according to claim 1, it is characterised in that: the locating piece includes U bolt and U Shape bolt block, U bolt seat are located at rinsing bowl outside the both ends of air inlet pipe extending direction, and U bolt seat is equipped with and U-shaped spiral shell The bolt hole of the dynamic cooperation of bolt, U bolt pass through the bolt hole of U bolt seat and are connected and fixed with nut.
9. ceramic wafer cleaning system according to claim 1, it is characterised in that: acid bubble slot, rinsing bowl and the drip acid Trench bottom is equipped with supporting leg.
10. ceramic wafer cleaning system according to claim 9, it is characterised in that: the supporting leg lower part is equipped with traveling wheel.
CN201821176626.8U 2018-07-24 2018-07-24 A kind of ceramic wafer cleaning system Active CN208436523U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201821176626.8U CN208436523U (en) 2018-07-24 2018-07-24 A kind of ceramic wafer cleaning system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201821176626.8U CN208436523U (en) 2018-07-24 2018-07-24 A kind of ceramic wafer cleaning system

Publications (1)

Publication Number Publication Date
CN208436523U true CN208436523U (en) 2019-01-29

Family

ID=65086546

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201821176626.8U Active CN208436523U (en) 2018-07-24 2018-07-24 A kind of ceramic wafer cleaning system

Country Status (1)

Country Link
CN (1) CN208436523U (en)

Similar Documents

Publication Publication Date Title
CN107127179A (en) A kind of clearing and drying device of Bioexperiment instrument
CN214031934U (en) Sand-water separation device of industrial sewage pump station
CN208436523U (en) A kind of ceramic wafer cleaning system
CN107805894A (en) A kind of spun articles flusher of energy-conservation
CN208555303U (en) A kind of ceramic wafer water for cleaning cleaning device
CN103405984A (en) High temperature oil smoke purifier
CN202303658U (en) Rotational-flow internal-scouring type dirt remover
CN104436774B (en) Mechanical filter
CN210131443U (en) Internal water inlet type rotary screen for sewage treatment
CN207532873U (en) Without raffinate microporous filter
CN204619510U (en) A kind of backwashing system
CN210303138U (en) A wash with alkaline equipment for fluoride
CN214075278U (en) Air-water combined backwashing microporous filter
CN205032087U (en) Ultrafiltration device washes structure
CN2829923Y (en) Manually operated rinser for rubber plugs
CN204051116U (en) A kind of flushing mechanism of middle water manganese sand filter
CN209944616U (en) Air purification equipment convenient to it is clean
CN207187217U (en) Washed-out sand fine filtration device
CN210544123U (en) Waste gas treatment device for environmental protection equipment
CN209954444U (en) Dust explosion-proof polishing workbench
CN214260918U (en) Backwashing water purifier
CN208583115U (en) Dust-extraction unit is used in a kind of production of nitrided metal composite material
CN210814281U (en) Easy abluent liquid sodium silicate filter equipment
CN211273686U (en) Fiber filter with lower movable plate
CN217391717U (en) Down feather processing sewage treatment device

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant