CN207331022U - Except alkali device, aluminium melt purifying system and aluminium and aluminium alloy production system - Google Patents
Except alkali device, aluminium melt purifying system and aluminium and aluminium alloy production system Download PDFInfo
- Publication number
- CN207331022U CN207331022U CN201721169293.1U CN201721169293U CN207331022U CN 207331022 U CN207331022 U CN 207331022U CN 201721169293 U CN201721169293 U CN 201721169293U CN 207331022 U CN207331022 U CN 207331022U
- Authority
- CN
- China
- Prior art keywords
- aluminium
- column
- sprocket wheel
- receiving part
- load receiving
- 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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
It the utility model is related to aluminium refining art, provide one kind and remove alkali device, including column, motor, guide rail, slide load receiving part and hollow graphite rotor, motor is arranged at the top of column, guide rail is arranged at the side wall of column, slide sliding connector and load receiving part that load receiving part includes being connected with each other, sliding connector is slided with guide rail and fastened, the first sprocket wheel is provided with the top of column, first sprocket wheel is connected with motor, the bottom of column is provided with the second sprocket wheel, first sprocket wheel is connected with the second sprocket wheel by chain, chain is connected with sliding connector, hollow graphite rotor is arranged at load receiving part.This can remove the alkali and alkaline earth metal ions in aluminum melt except alkali device.The utility model additionally provides a kind of aluminium melt purifying system, it include it is above-mentioned remove alkali device, it can remove the alkali and alkaline earth metal ions in aluminum melt.A kind of aluminium and aluminium alloy production system, it includes above-mentioned aluminium melt purifying system, its obtained aluminium and aluminum product quality are good.
Description
Technical field
The utility model is related to aluminium refining art, in particular to except alkali device, aluminium melt purifying system and aluminium and
Aluminium alloy production system.
Background technology
Aluminium and aluminum alloy melt casting be using electrolytic aluminium liquid (or aluminium ingot), to return to waste material, intermediate alloy be primary raw material, through melting
Change, keep the temperature, refining, the different product of shape, such as slab ingot, billet, casting volume are formed after casting.Since electrolytic aluminium liquid is directly cast
Make aluminium processing to compare with ingot blank with remelted aluminum ingot production and processing ingot blank, can not only save remelting process, save energy consumption, but also can
Scaling loss is reduced, reduces environmental pollution, reduce production cost.But electrolytic aluminium water is due to temperature height, the spy that hydrogen content is high, slag content is high
Point, cause purification technique to molten aluminum liquid with regard to it is particularly important that, it is directly related to the quality problems of casting product.
Utility model content
The utility model provides one kind and removes alkali device, it can be same as in the cleaning system of electrolytic aluminium liquid melt
Except the alkali and alkaline earth metal ions in aluminum melt, and except alkali effect is good.
The utility model additionally provides a kind of aluminium and aluminium alloy production system, is added in system operation in except alkali device
Except alkali medicament, the alkali and alkaline earth metal ions in aluminum melt can be removed.
The utility model additionally provides a kind of aluminium melt purifying system, it produces obtained aluminium and Al-alloy products quality
It is good.
The utility model is realized in this way：
One kind removes alkali device, including column, motor, guide rail, slip load receiving part and hollow graphite rotor, motor are arranged at
The top of column, guide rail are arranged at the side wall of column, slide sliding connector and load receiving part that load receiving part includes being connected with each other, sliding
Follower link is slided with guide rail and fastened, and is provided with the first sprocket wheel at the top of column, the first sprocket wheel is connected with motor, the bottom of column
The second sprocket wheel is provided with, the first sprocket wheel is connected with the second sprocket wheel by chain, and chain is connected with sliding connector, and the first sprocket wheel
Rotation can be moved up and down by chain-driving sliding connector, hollow graphite rotor is arranged at load receiving part, and hollow graphite turns
The discharging mouth down of son is set.
Further, in the utility model preferred embodiment, except alkali device further includes lid of two-maing ladle, two-man ladle lid and load-bearing
Portion connects, and lid of two-maing ladle is set parallel to ground, and hollow graphite rotor passes through lid of two-maing ladle.
Further, in the utility model preferred embodiment, except alkali device further includes dust separation pipe, dust separation
Pipe is arranged at load receiving part, and the air inlet mouth down of dust separation pipe is set, and dust separation pipe passes through lid of two-maing ladle.
Further, in the utility model preferred embodiment, the hollow graphite rotor that is set on each load receiving part
Quantity is 2.
Further, in the utility model preferred embodiment, the quantity of sliding load receiving part is 2, guide rail quantity is 2
Right, 2 pairs of guide rails are respectively arranged at the opposite sides of column, it is each slide load receiving part correspond to a pair of guide rails, one article of chain, one the
One sprocket wheel, second sprocket wheel and a motor.
Further, in the utility model preferred embodiment, except alkali device further includes control system substation, control system
System substation is connected with its communications.
Further, in the utility model preferred embodiment, it is spacing that the top edge of sliding connector is provided with first
Travel switch, the top of column are provided with first baffle with the first limitation travel switch corresponding position.
Further, in the utility model preferred embodiment, it is spacing that the lower edge of sliding connector is provided with second
Travel switch, the lower part of column are provided with second baffle with the second limitation travel switch corresponding position.
A kind of aluminium melt purifying system, including above-mentioned remove alkali device.
A kind of aluminium and aluminium alloy production system, including above-mentioned aluminium melt purifying system.
The beneficial effects of the utility model are：The utility model removes alkali device by what above-mentioned design obtained, in use, by
Cause in column, motor, guide rail, the mutual cooperation of sliding load receiving part and hollow graphite rotor except alkali device is to hollow graphite
There can be the alkali and alkaline earth metal ions being used to remove in aluminum melt when being passed through in rotor except alkali medicament, and remove alkali effect
It is good.Aluminium melt purifying system provided by the utility model, due to since it includes electrolytic aluminium liquid provided by the utility model
Cleaning system, therefore it produces obtained aluminium and Al-alloy products quality is good.Aluminium and aluminium alloy production provided by the utility model
System, since it includes electrolytic aluminium liquid cleaning system provided by the utility model, therefore it produces obtained aluminium and aluminium alloy system
Quality is good.
Brief description of the drawings
, below will be to required in embodiment in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it will be appreciated that and the following drawings illustrate only some embodiments of the utility model, therefore not
The restriction to scope is should be considered as, for those of ordinary skill in the art, without creative efforts,
Other relevant attached drawings can also be obtained according to these attached drawings.
Fig. 1 be the utility model embodiment provide except alkali device the first visual angle structure diagram；
Fig. 2 be the utility model embodiment provide except alkali device the second visual angle structure diagram；
Fig. 3 is the offer of the utility model embodiment except the top view of alkali device；
Fig. 4 is the enlarged drawing in IV region in Fig. 1；
Fig. 5 is the enlarged drawing in V region in Fig. 1；
Fig. 6 is that column is connected the structure diagram coordinated with sliding connector.
Icon：100- removes alkali device；110- columns；120- motors；The first motors of 121-；The second motors of 122-；130- is led
Rail；The first unilateral rails of 133-；The second unilateral rails of 134-；140- slides load receiving part；141- sliding connectors；142- load receiving parts；
150- hollow graphite rotors；151- the first hollow graphite rotors；152- the second hollow graphite rotors；153- discharge ports；160- is removed
Dirt purification pipe；161- air inlets；The first sprocket wheels of 171-；The second sprocket wheels of 172-；173- chains；181- two-mans ladle lid；191- first gear
Plate；The first limitation travel switches of 192-；193- second baffles；The second limitation travel switches of 194-.
Embodiment
To make the purpose, technical scheme and advantage of the utility model embodiment clearer, below in conjunction with this practicality
Attached drawing in new embodiment, is clearly and completely described the technical solution in the utility model embodiment, shows
So, described embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on this practicality
Embodiment in new, those of ordinary skill in the art are obtained every other without creative efforts
Embodiment, shall fall within the protection scope of the present invention.Therefore, the implementation to the utility model provided in the accompanying drawings below
The detailed description of mode is not intended to limit claimed the scope of the utility model, but is merely representative of the utility model
Selected embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative labor
The every other embodiment obtained under the premise of dynamic, shall fall within the protection scope of the present invention.
In the description of the utility model, it is to be understood that term " " center ", " on ", " under ", " vertical ", " level ",
The orientation or position relationship of the instruction such as " top ", " bottom ", " interior ", " outer " are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified equipment or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that limitation to the utility model.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the utility model, " multiple " are meant that two or two
More than, unless otherwise specifically defined.
In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu
It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be
Mechanically connect or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, can be two
The interaction relationship of connection or two elements inside element.For the ordinary skill in the art, can basis
Concrete condition understands concrete meaning of the above-mentioned term in the utility model.
In the utility model, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it
" under " can directly be contacted including the first and second features, it is not directly to contact but lead to that can also include the first and second features
Cross the other characterisation contact between them.Moreover, fisrt feature second feature " on ", " top " and " above " include the
One feature is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.First is special
Sign second feature " under ", " lower section " and " below " including fisrt feature immediately below second feature and obliquely downward, or only
Represent that fisrt feature level height is less than second feature.
As shown in Figs. 1-3, the utility model provides one kind and removes alkali device 100, including column 110, motor 120, guide rail
130th, load receiving part 140 and hollow graphite rotor 150 are slided.
Specifically, motor 120 is arranged at the top of column 110, and guide rail 130 is arranged at the side wall of column 110, slides load-bearing
Portion 140 includes the sliding connector 141 and load receiving part 142 being connected with each other, and sliding connector 141 is slided with guide rail 130 and fastened.
Top referring to Fig. 4 and Fig. 5, column 110 is provided with the first sprocket wheel 171, the first sprocket wheel 171 and motor 120
Connection, the bottom of column 110 are provided with the second sprocket wheel 172, and the first sprocket wheel 171 is connected with the second sprocket wheel 172 by chain 173,
Chain 173 is connected with sliding connector 141, and the rotation of the first sprocket wheel 171 can drive sliding connector 141 by chain 173
Move up and down, hollow graphite rotor 150 is arranged at load receiving part 142, and the discharge port 153 of hollow graphite rotor 150 is set downward.
When working except alkali device 100, it is contained with two-maing ladle for aluminum melt and moves to the lower section of hollow graphite rotor 150, at this time
Control motor 120 rotates, and makes chain 173 drive slip load receiving part 140 to be moved downward on guide rail 130, when slip load receiving part 140
When moving to the discharge port 153 of hollow graphite rotor 150 and flooding into aluminum melt, it is passed through into hollow graphite rotor 150 except alkali
Medicament, and make 150 rotation work of hollow graphite rotor, to remove the alkali in aluminum melt.
Specifically, guide rail 130 includes the first unilateral 133 and second unilateral rail 134 of rail.First unilateral rail 133 and second is single
Side rail 134 is respectively arranged at the both sides of 110 1 side walls of column.The opposite both sides of sliding connector 141 are fastened on first respectively
On unilateral 133 and second unilateral rail 134 of rail.
Further, the rotating speed of hollow graphite rotor 150 is adjustable, it causes aluminum melt except alkali process is more controllable.
Further, except alkali device 100 further includes lid 181 of two-maing ladle, lid 181 of two-maing ladle is connected with load receiving part 142, and lid of two-maing ladle
181 are set parallel to ground, and hollow graphite rotor 150 passes through lid 181 of two-maing ladle.
Aluminum melt remove alkali during, for transport aluminum melt two-man ladle move to hollow graphite 150 lower section of rotor when,
Motor 120 rotates so that slides load receiving part 140 and moves downward so that lid 181 of two-maing ladle is covered on the opening two-mand ladle, then hollow
Graphite rotator 150 carries out aluminum melt in a space comparatively closed except alkali works causing except alkali effect is good, and lifts
The setting of backpack cover 181 can also prevent the impurity in the external world from entering in aluminum melt.
Further, except alkali device 100 further includes dust separation pipe 160, dust separation pipe 160 is arranged at load receiving part 142,
The air inlet 161 of dust separation pipe 160 is set downward, and dust separation pipe 160 passes through lid 181 of two-maing ladle.
Due to aluminum melt except alkali process be passed through into hollow graphite rotor 150 except alkaline agent is the mixing of pulvis and gas
Thing, then after pulvis is reacted with aluminum melt gas therein and reaction produce other then can together be discharged, if directly row
Can then air be polluted by putting into air, also be unfavorable for workshop staff health.After dust separation pipe 160 is set, remove
The gas that alkali process is taken out of is collected into the gas cleaning plant of workshop from air inlet 161 by dust separation pipe 160, to gas into
Discharged again after row purification.
Further, the quantity of the hollow graphite rotor 150 set on each load receiving part 142 is 2.Specifically, in this 2
Empty graphite rotator 150 is respectively the first hollow graphite rotor 151 and the second hollow graphite rotor 152.First during except alkali
151 and second hollow graphite rotor 152 of hollow graphite rotor cooperates so that except alkali efficiency is relative to one hollow stone of setting
Higher during black rotor 150.
It is pointed out that in the other embodiment of the utility model, it is each to slide the hollow stone set on load receiving part
The quantity of black rotor can also be one or more than 2.But the quantity of the hollow graphite rotor set excessively causes equipment
Production cost is much, and it is also relatively cumbersome to run operation.
Further, the quantity of load receiving part 142 be 2,130 quantity of guide rail be 2 pairs, 2 pairs of guide rails 130 are respectively arranged at vertical
The opposite sides of column 110, the first sprocket wheel 171 of each slip load receiving part 140 correspondence 173, one, chain of a pair of guide rails 130, one,
One the second sprocket wheel 172 and a motor 120.
When needing progress aluminum melt to remove alkali, two are contained with two-maing ladle for aluminum melt and move to 110 both sides of column respectively
To be used except alkali the lower section of hollow graphite rotor 150, the hollow graphite rotor 150 and dust removing purifier of 110 both sides of column etc.
To mechanism coordinate the delivery time two-mand ladle independently to work.The design is since the opposite sides of column 110 being both provided with
Except alkali mechanism, therefore it causes except the overall work efficiency of alkali device 100 lifts one times.
Further, except alkali device 100 further includes control system substation, control system substation is communicated to connect with motor 120.
Staff can be by operation control system substation to the time except 100 Zhong Ge mechanisms operating rate of alkali device and start-up operation
It is controlled, preferably to make except alkali device 100 eliminates the alkali in aluminum melt or causes the work efficiency except alkali device 100
Higher.
As shown in fig. 6, further, the top edge of sliding connector 141 is provided with the first limitation travel switch 192, stand
The top of column 110 is provided with first baffle 191 with 192 corresponding position of the first limitation travel switch.
When one two-man ladle in hold aluminum melt except alkali process complete when, drive of the sliding connector 141 in chain 173
Under move to the top of column 110 and completely disengage hollow graphite rotor 150 to two-man ladle, then set on sliding connector 141
One limitation travel switch 192 touches first baffle 191, and the first limitation travel switch 192 is sent to motor by signal is touched at this time
120, motor 120 is then stopped, and the ascending motion of sliding connector 141 stops, which causes motor 120 to be unlikely to consume
Unnecessary electricity, also places 141 transition of sliding connector and moves up damage device.
Further, the lower edge of sliding connector 141 is provided with the second limitation travel switch 194, the lower part of column 110
Second limitation travel switch, 194 corresponding position is provided with second baffle 193.
When two-man ladle the lower part for moving to hollow graphite rotor 150 when, motor 120 is started to work, its drive sliding connector
141 move downward, when it is moved to so that lid 181 of two-maing ladle just is covered and two-mand ladle, the second limitation travel switch 194 touching the
Two baffles 193, the second limitation travel switch 194 are sent to motor 120 by signal is touched, then motor 120 is stopped, then slides
Connector 141 moves downward process stopping.When sliding connector 141 slide into designated position sheet it is immovable when, motor 120
Also being powered has rotation trend, but since lid 181 of two-maing ladle has been fastened so that motor 120 is difficult to rotate with two-maing ladle, it is possible to it is right
Motor 120 causes to damage.The design in time closes motor 120, can effectively prevent motor 120 from damaging.
In conclusion provided by the utility model remove alkali device, due to column, motor, guide rail, slide load receiving part and
The mutual cooperation of hollow graphite rotor enable except alkali device have when being passed through into hollow graphite rotor except alkali medicament by with
In removing the alkali and alkaline earth metal ions in aluminum melt, and except alkali effect is good.
The utility model additionally provides a kind of aluminium melt purifying system, it includes provided by the utility model except alkali fills
Put, due to it include it is provided by the utility model remove alkali device, therefore it can remove aluminum melt in aluminum solutions purification process
In alkali and alkaline earth metal ions.
The utility model additionally provides a kind of aluminium and aluminium alloy production system, it includes aluminium provided by the utility model and melts
Body cleaning system, since it includes electrolytic aluminium liquid cleaning system provided by the utility model, therefore it produces obtained aluminium and aluminium
Alloy product quality is good.
Above description is merely a prefered embodiment of the utility model, is not intended to limit the present invention, for
For those skilled in the art, various modifications and changes may be made to the present invention.It is all in the spiritual and former of the utility model
Within then, any modification, equivalent replacement, improvement and so on, should be included within the scope of protection of this utility model.
Claims (10)
1. one kind remove alkali device, it is characterised in that including column, motor, guide rail, slip load receiving part and hollow graphite rotor,
The motor is arranged at the top of the column, and the guide rail is arranged at the side wall of the column, and the slip load receiving part includes
The sliding connector and load receiving part of interconnection, the sliding connector are slided with the guide rail and fastened, the top of the column
The first sprocket wheel is provided with, first sprocket wheel is connected with the motor, and the bottom of the column is provided with the second sprocket wheel, and described
One sprocket wheel is connected with second sprocket wheel by chain, and the chain is connected with the sliding connector, and first sprocket wheel
Rotation can be moved up and down by sliding connector described in the chain-driving, the hollow graphite rotor is arranged at the load-bearing
Portion, and the discharging mouth down of the hollow graphite rotor is set.
2. according to claim 1 remove alkali device, it is characterised in that described except alkali device further includes lid of two-maing ladle, the lift
Backpack cover is connected with the load receiving part, and the lid of two-maing ladle is set parallel to ground, and the hollow graphite rotor is two-mand ladle through described
Lid.
3. according to claim 2 remove alkali device, it is characterised in that described except alkali device further includes dust separation pipe, institute
State dust separation pipe and be arranged at the load receiving part, the air inlet mouth down of the dust separation pipe is set, and the dust separation pipe
Through the lid of two-maing ladle.
4. according to claim 1 remove alkali device, it is characterised in that the hollow stone set on each load receiving part
The quantity of black rotor is 2.
5. according to claim 1 remove alkali device, it is characterised in that the quantity for sliding load receiving part is 2, described leads
Rail quantity is 2 pairs, and 2 pairs of guide rails are respectively arranged at the opposite sides of the column, and each slip load receiving part corresponds to one
To the guide rail, a chain, first sprocket wheel, second sprocket wheel and a motor.
6. according to claim 1 remove alkali device, it is characterised in that it is described except alkali device further includes control system substation,
The control system substation is connected with its communications.
7. according to claim 1 remove alkali device, it is characterised in that the top edge of the sliding connector is provided with first
Limitation travel switch, the top of the column are provided with first baffle with the first limitation travel switch corresponding position.
8. according to claim 1 remove alkali device, it is characterised in that the lower edge of the sliding connector is provided with second
Limitation travel switch, the lower part of the column are provided with second baffle with the second limitation travel switch corresponding position.
9. a kind of aluminium melt purifying system, it is characterised in that remove alkali device including such as claim 1-8 any one of them.
10. a kind of aluminium and aluminium alloy production system, it is characterised in that including the aluminium melt purifying system described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721169293.1U CN207331022U (en) | 2017-09-13 | 2017-09-13 | Except alkali device, aluminium melt purifying system and aluminium and aluminium alloy production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721169293.1U CN207331022U (en) | 2017-09-13 | 2017-09-13 | Except alkali device, aluminium melt purifying system and aluminium and aluminium alloy production system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207331022U true CN207331022U (en) | 2018-05-08 |
Family
ID=62368614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721169293.1U Active CN207331022U (en) | 2017-09-13 | 2017-09-13 | Except alkali device, aluminium melt purifying system and aluminium and aluminium alloy production system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207331022U (en) |
-
2017
- 2017-09-13 CN CN201721169293.1U patent/CN207331022U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206015039U (en) | A kind of powder spraying system and aluminum liquid purifying device | |
| CN107604181A (en) | A kind of production method of aluminium and aluminium alloy | |
| CN207331022U (en) | Except alkali device, aluminium melt purifying system and aluminium and aluminium alloy production system | |
| CN110317923A (en) | A kind of method for making steel | |
| CN107385225A (en) | A kind of aluminium melt purifying system and aluminium and aluminium alloy production system | |
| CN207325931U (en) | One kind two-man ladle skimmer device and electrolysis aluminium melt purifying system | |
| CN212119386U (en) | Dust collector for metallurgy | |
| CN109628749A (en) | A kind of aluminium melting furnace combustion apparatus slag-draining device | |
| CN212374918U (en) | High-turbidity sewage treatment device for desulfurization and denitrification | |
| CN212482068U (en) | High-temperature calcining furnace for gallium oxide production | |
| CN207325928U (en) | Aluminum melt processing is two-mand ladle, aluminium melt purifying system and aluminum products production system | |
| CN207891407U (en) | Molten aluminum inoculating and refining handles all-in-one machine | |
| CN207900195U (en) | A kind of device for producing molding aluminium ingot | |
| CN216320571U (en) | Ceramic desulfurizing tower with novel demister | |
| CN213313586U (en) | Water glass's purification device | |
| CN220845670U (en) | Purifying device for electrolyte for formation foil production | |
| CN215253116U (en) | Discharge mechanism for continuous dredging device for river regulation | |
| CN202606288U (en) | Flotation device for high-purity quartz sand | |
| CN216440023U (en) | Sewage environmental protection is with treatment tank | |
| CN114951604B (en) | Slag skimming device for hub low-pressure casting machine | |
| CN115804985B (en) | Environment-friendly laboratory sewage filtration purification treatment facility | |
| CN211614247U (en) | Environment-friendly magnesium ingot continuous ingot casting machine | |
| CN217458938U (en) | Totally enclosed type circulation regeneration device for electrolytic alkaline etching solution | |
| CN215878943U (en) | Dross removal mechanism is used in aluminium bar casting | |
| CN218076413U (en) | Enrichment facility is used in collagen production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200403 Address after: 810100, Nanjing City, Qinghai province Xining Ning Zhang highway 32 kilometers Patentee after: QINGHAI BRIDGE ELECTRIC INDUSTRIAL Co.,Ltd. Address before: 810000 No. 55 East Kunlun Road, Xining economic and Technological Development Zone, Qinghai Patentee before: QINGHAI PLATEAU NONFERROUS METAL R & D Co.,Ltd. |
|
| TR01 | Transfer of patent right |