CN206382105U - The efficient grinding system of aluminum cell electrolyte crust block - Google Patents
The efficient grinding system of aluminum cell electrolyte crust block Download PDFInfo
- Publication number
- CN206382105U CN206382105U CN201621432195.8U CN201621432195U CN206382105U CN 206382105 U CN206382105 U CN 206382105U CN 201621432195 U CN201621432195 U CN 201621432195U CN 206382105 U CN206382105 U CN 206382105U
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- Prior art keywords
- discharging opening
- charging aperture
- disintegrating machine
- aperture connection
- triple valve
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- 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.)
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- 239000003792 electrolyte Substances 0.000 title claims abstract description 24
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 23
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 title claims abstract description 17
- 238000007599 discharging Methods 0.000 claims abstract description 79
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000012216 screening Methods 0.000 claims abstract description 19
- 229910052742 iron Inorganic materials 0.000 claims abstract description 17
- 239000000428 dust Substances 0.000 claims description 35
- 239000004744 fabric Substances 0.000 claims description 5
- 235000013312 flour Nutrition 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 4
- 230000001360 synchronised effect Effects 0.000 claims description 4
- 210000001367 artery Anatomy 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 claims description 2
- 230000008676 import Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 238000012423 maintenance Methods 0.000 description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 6
- 230000009467 reduction Effects 0.000 description 5
- 239000004411 aluminium Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 241000628997 Flos Species 0.000 description 1
- 235000013339 cereals Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000010420 shell particle Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model is related to a kind of efficient grinding system of aluminum cell electrolyte crust block, the discharging opening of first triple valve is connected with the disintegrating machine of one-level first, the charging aperture connection of the disintegrating machine of one-level first and large inclination belt conveyor, the discharging opening of large inclination belt conveyor and the charging aperture of surge bunker are connected, the discharging opening of surge bunker and first, two vibrating feed machine inlets are connected, first, the discharging opening of two oscillating feeders respectively with two grade first, the charging aperture connection of second disintegrating machine, the second discharging opening and belt feeder of second triple valve, bucket elevator import is connected, bucket elevator outlet is connected with the charging aperture of screening machine；First discharging opening of the 3rd triple valve is connected with the charging aperture of two grade of first disintegrating machine, second discharging opening of the 3rd triple valve and the charging aperture of tertiary crusher are connected, 3rd discharging opening of screening machine is connected with the charging aperture of the second tramp iron separator, and the discharging opening of the second tramp iron separator and the charging aperture of finished bin are connected.
Description
Technical field
The utility model is related to a kind of grinding system, more particularly to a kind of aluminum cell electrolyte of technical field of aluminum electrolysis
The efficient grinding system of crust block.
Background technology
From nineteen nineties, China's Aluminium Industry fast development, wherein primary aluminum yield are from 3,410,000 in 2001
Ton develops into and increases 9 times between 31,410,000 tons in 2015, short 14 years, and yield occupies the first in the world in continuous 12 years,
Electrolytic aluminium yield has been turned over one and turned over wherein during " 12 ", and more than the 55% of world wide production is accounted at present.Aluminium electrolysis enterprise is in production
The alumina crust block of generation also increases therewith.But the grinding system of domestic alumina crust block is more single, and to environment
It is seriously polluted.
The grinding process step of domestic alumina crust block is as follows as shown in Figure 1：Utilize one-level, the disintegrating machine of two-stage tandem
The alumina crust block crushing that composing room's cleaning electrolyte is got off into needs granularity, by conveyer will it is broken after knot
Shell particle is transported to screening machine and sieved, will the upper underproof bulky grain of sieve again with two-stage crushing crusher machine, sieve again, until
Crust particle after broken can pass through screen cloth, i.e., existing graded crushing.
As can be seen here, there is following defect in the processing system for the alumina crust block that above-mentioned aluminium electrolysis enterprise is generally used：
1) single line technological process is single, no stand-by equipment, and when equipment fault or maintenance, easily large area hoards windrow；
2) general to build two production lines, two lines the using and the reserved, equipment is high with construction investment, and utilization rate is low；
3) because electrolyte is partially hard, double-roll crusher（Or conventional counterattack is broken）Fault rate is high, and serious wear；
4) dust collection effect is poor, does not reach environmental requirement discharge standard（Dust concentration is less than 10mg/Nm3）；
5) debris can not be efficiently separated, does not have debris floss hole；
6) labor strength is big；
7) controllability of granule size is poor；
8) the fault rate height of system equipment, automaticity are low, and the maintenance of equipment and maintenance workload are big；
Therefore, it is badly in need of a kind of big production capacity, low-power consumption, investment is small, taking up an area small, granularity, easy to adjust, automaticity is high
Alumina crust block grinding production system.
The content of the invention
In order to solve the above-mentioned technical problem the utility model provides a kind of efficient grinding system of aluminum cell electrolyte crust block
System, it is therefore an objective to dragged for for crushing the electrolyte crust block for clearing up to get off on anode scrap and Multi-function equipments in change poles in pre-baking tank
Electrolyte crust block out, can also handle the electrolyte crust block that other channels are shipped.
To be the efficient grinding system of the utility model aluminum cell electrolyte crust block up to above-mentioned purpose, the first triple valve
Discharging opening is connected with the charging aperture of the disintegrating machine of one-level first, the disintegrating machine of one-level second, and the disintegrating machine of one-level first, one-level second are crushed
The discharging opening of machine and the charging aperture of large inclination belt conveyor are connected, the discharging opening of large inclination belt conveyor and entering for surge bunker
Material mouth is connected, and the discharging opening of surge bunker is connected with the charging aperture of the first oscillating feeder, the second oscillating feeder, first vibrate to
First discharging opening of material machine is connected with the charging aperture of two grade of first disintegrating machine, the first discharging opening of the second oscillating feeder and two grades
The charging aperture connection of second disintegrating machine, the first oscillating feeder, the second oscillating feeder the second discharging opening and belt conveying
The charging aperture connection of machine, the discharging opening of two grade of first disintegrating machine and the charging aperture of ribbon conveyer connect, and ribbon conveyer goes out
The charging aperture connection of material mouth and bucket elevator, the discharging opening of two grade of second disintegrating machine is connected with the charging aperture of the second triple valve,
First discharging opening of the second triple valve and the charging aperture of ribbon conveyer are connected, and the second discharging opening and the three-level of the second triple valve are broken
The charging aperture connection of broken machine, the discharging opening of tertiary crusher and the charging aperture of bucket elevator are connected, the discharging of bucket elevator
Mouthful it is connected with the charging aperture of screening machine, the first discharging opening of screening machine is connected with impurity barrel, the second discharging opening of screening machine and the
The charging aperture connection of one tramp iron separator, the discharging opening of the first tramp iron separator is connected with the charging aperture of the 3rd triple valve, the 3rd triple valve
First discharging opening is connected with the charging aperture of two grade of first disintegrating machine, the 3rd second discharging opening of triple valve and entering for tertiary crusher
Material mouth is connected, and the 3rd discharging opening of screening machine is connected with the charging aperture of the second tramp iron separator, the discharging opening and finished product of the second tramp iron separator
The charging aperture connection in storehouse.
The air inlet of cyclone dust collectors is connected with the mouth that gathers dust of each equipment, the air outlet and pulse dust collector of cyclone dust collectors
Air inlet connection, the charging aperture of the discharging openings of cyclone dust collectors and conveying worm connects, the discharging opening of conveying worm with
The air inlet of the charging aperture connection of finished bin, the air outlet of pulse dust collector and blower fan is connected, the discharging opening of pulse dust collector with
The charging aperture connection of finished bin.
First triple valve, the second triple valve and the 3rd triple valve are automatic or manual triple valve.
First oscillating feeder, the second oscillating feeder are electro-vibrating feeder or motor oscillating batcher.
Described screening machine is double deck screen, and the superiors possess the online function of excluding debris.
Described pulse dust collector is sack cleaner or filter cartridge dust remover.
Described finished bin dischargeable capacity is 800m3More than.
The disintegrating machine of one-level first and the disintegrating machine of one-level second are the using and the reserved.
Two grade of first disintegrating machine is board-like impact crusher, and two grade of second disintegrating machine is small grade jaw crusher.
Tertiary crusher is flour mill, interior to be provided with synchronous rotary screen cloth.
The utility model has the advantages of：The utility model low cost, floor space are small, stable, fault rate is low, inspection
Repair convenience, production adjustment is flexible, efficiency high, automaticity are high, energy consumption is low, operating cost is low, environment protecting good, dust emission
Concentration is less than 10mg/Nm3。
The utility model is broken by the way of tertiary crusher is combined using tradition machinery, and product material is particle-stabilised again
Adjustable, more than 1mm granularity material occupy the majority, and be not in the excessive phenomenon of fine powder, electrolytic cell use requirement is met well；Fine crushing
Can be connected with flour mill can also be in parallel, can be standby each other when there is overhaul of the equipments, is conducive to the continuous, steady of production
It is fixed；Automaticity is high.System can automatically switch various mode of operations, centralized Control, and device context is unattended, improve labor
Dynamic productivity ratio, reduction labor intensity；Product granularity is uniform, and crushing phenomenon excessively is less, and grinding efficiency is higher；For tertiary crusher
So the larger equipment of noise, takes special sound insulation and noise reduction measure, it is ensured that apart from noise≤85dB at 1 meter of equipment, meet work
Industry productive labor safety and health request；Two-stage crushing working stability, fault rate is low, and standby redundancy quantity is also obviously reduced, with sieve
Extension set, which coordinates, can also play the broken effect of three-level；One-level disintegrating machine（It is thick broken）Given birth to when the using and the reserved, equipment fault or maintenance
Producing line does not stop production；Using ripe, advanced reliable equipment, plant maintenance is easy, and energy-saving and environmental protection, production efficiency are high, cost of labor
Low, the stability of a system is strong, is easy to production management；Floor space is small, and equipment construction investment is low, and space availability ratio is high；Finished product fines
Storage amount is big；Plant capacity is relatively small（380V voltages, distribution small investment）, the call of the environmentally friendly energy-conservation of consumption reduction emission reduction of response, saving
Substantial amounts of operation and maintenance cost；There is provided rotoclone collector, accomplishes two-stage dust removal, dust collection effect is good, can reach that environmental protection will
Seek discharge standard（Dust concentration is less than 10mg/Nm3）；Bucket elevator uses the wire belt of larger specification, binary channels（Material containing
Bucket is run with empty hopper in respective passage）Bucket elevator, totally-enclosed, stable, maintenance facilitates, does not emit ash, enhancement of environment；
Using two layers of screening machine, possesses online discharge debris function；Tertiary crusher is flour mill, interior to be provided with synchronous rotary screen cloth, electricity
Solution matter fine powder passes through, and the debris such as aluminium flake leaves, and is easy to separating sundries.
Brief description of the drawings
Fig. 1 is existing structure schematic diagram.
Fig. 2 the utility model structural representations.
In figure：1st, the first triple valve, 2, the disintegrating machine of one-level first, 3, the disintegrating machine of one-level second, 4, large-tip angle and belt conveying
Machine, 5, tramp iron separator, 6, surge bunker, the 7, first oscillating feeder, the 8, second oscillating feeder, 9, two grade of first disintegrating machine, 10, two
The second disintegrating machine of level, 11, ribbon conveyer, 12, elevator, the 13, second triple valve, 14, tertiary crusher, 15, screening machine,
16th, impurity bucket, the 17, first tramp iron separator, the 18, the 3rd triple valve, the 19, second tramp iron separator, 20, finished bin, 21, conveying worm,
22nd, cyclone dust collectors, 23, pulse dust collector, 24, blower fan.
Embodiment
Next step description is carried out to the utility model with reference to embodiment.Following examples are only tool of the present utility model
Body embodiment, in order that the purpose of this utility model, technical scheme and advantage are very clear, below in conjunction with drawings and Examples,
The utility model is further elaborated.
As shown in Fig. 2 the efficient grinding system of aluminum cell electrolyte crust block, it is characterised in that：First triple valve 1 goes out
Material mouth is connected with the charging aperture of the first disintegrating machine of one-level 2, the second disintegrating machine of one-level 3, and the first disintegrating machine of one-level 2, one-level second are broken
The discharging opening of broken machine 3 is connected with the charging aperture of large inclination belt conveyor 4, and the waste outlet of large inclination belt conveyor 4 is with removing
Ironware 5 is connected, and the discharging opening of large inclination belt conveyor 4 is connected with the charging aperture of surge bunker 6, the discharging opening of surge bunker 6 and
The charging aperture connection of one oscillating feeder 7, the second oscillating feeder 8, the first discharging opening of the first oscillating feeder 7 and two grades the
The charging aperture of the charging aperture connection of one disintegrating machine 9, the first discharging opening of the second oscillating feeder 8 and two grade of second disintegrating machine 10 connects
Connect, the charging aperture of the first oscillating feeder 7, the second discharging opening of the second oscillating feeder 8 with ribbon conveyer 11 is connected, two
The discharging opening of the first disintegrating machine 9 of level is connected with the charging aperture of ribbon conveyer 11, and discharging opening and the bucket type of ribbon conveyer 11 are carried
The charging aperture connection of machine 12 is risen, the discharging opening of two grade of second disintegrating machine 10 is connected with the charging aperture of the second triple valve 13, the two or three
First discharging opening of port valve 13 is connected with the charging aperture of ribbon conveyer 11, and the second discharging opening and the three-level of the second triple valve 13 are broken
The charging aperture connection of broken machine 14, the discharging opening of tertiary crusher 14 is connected with the charging aperture of bucket elevator 12, bucket elevator
12 discharging opening is connected with the charging aperture of screening machine 15, and the first discharging opening of screening machine 15 is connected with impurity bucket 16, screening machine 15
The second discharging opening be connected with the charging aperture of the first tramp iron separator 17, the first discharging opening of tramp iron separator 17 and entering for the 3rd triple valve 18
Material mouth is connected, and the first discharging opening of the 3rd triple valve 18 is connected with the charging aperture of two grade of first disintegrating machine 9, the 3rd triple valve 18
Second discharging opening is connected with the charging aperture of tertiary crusher 14, the charging of the 3rd discharging opening and the second tramp iron separator 19 of screening machine 15
Mouth connection, the discharging opening of the second tramp iron separator 19 is connected with the charging aperture of finished bin 20.
The air inlet of cyclone dust collectors 22 is connected with the mouth that gathers dust of each equipment, and air outlet and the pulse of cyclone dust collectors 22 are removed
The air inlet connection of dirt device 23, the discharging opening of cyclone dust collectors 22 is connected with the charging aperture of conveying worm 21, conveying worm
21 discharging opening is connected with the charging aperture of finished bin 20, and the air outlet of pulse dust collector 23 is connected with the air inlet of blower fan 24, arteries and veins
The discharging opening for rushing deduster 23 is connected with the charging aperture of finished bin 20.
First triple valve 1, the second triple valve 13 and the 3rd triple valve 18 are automatic or manual triple valve.
First oscillating feeder 7, the second oscillating feeder 8 are electro-vibrating feeder or motor oscillating batcher.
Described screening machine 15 is double deck screen, and the superiors possess the online function of excluding debris.
Described pulse dust collector 23 is sack cleaner or filter cartridge dust remover.
The described dischargeable capacity of finished bin 20 is 800m3More than, can store 1-2 days production needed for grinding electrolyte into
Product.
The first disintegrating machine of one-level 2 and the second disintegrating machine of one-level 3 are the using and the reserved.
Two grade of first disintegrating machine 9 is board-like impact crusher, and two grade of second disintegrating machine 10 is small grade jaw crusher.
Tertiary crusher is flour mill, interior to be provided with synchronous rotary screen cloth, and electrolyte fine powder passes through, and the debris such as aluminium flake leaves,
It is easy to separating sundries.
Cyclone dust collectors, pulse dust collector, blower fan constitute secondary dust collecting system.
Tertiary crusher takes special multistage sound insulation and noise reduction measure.
Claims (10)
1. the efficient grinding system of aluminum cell electrolyte crust block, it is characterised in that：First triple valve（1）Discharging opening and one-level
First disintegrating machine（2）, the disintegrating machine of one-level second（3）Charging aperture connection, the disintegrating machine of one-level first（2）, the disintegrating machine of one-level second
（3）Discharging opening and large inclination belt conveyor（4）Charging aperture connection, large inclination belt conveyor（4）Discharging opening with it is slow
Rush storehouse（6）Charging aperture connection, surge bunker（6）Discharging opening and the first oscillating feeder（7）, the second oscillating feeder（8）'s
Charging aperture is connected, the first oscillating feeder（7）The first discharging opening and two grade of first disintegrating machine（9）Charging aperture connection, second
Oscillating feeder（8）The first discharging opening and two grade of second disintegrating machine（10）Charging aperture connection, the first oscillating feeder（7）、
Second oscillating feeder（8）The second discharging opening and ribbon conveyer（11）Charging aperture connection, two grade of first disintegrating machine（9）
Discharging opening and ribbon conveyer（11）Charging aperture connection, ribbon conveyer（11）Discharging opening and bucket elevator（12）'s
Charging aperture is connected, two grade of second disintegrating machine（10）Discharging opening and the second triple valve（13）Charging aperture connection, the second triple valve
（13）The first discharging opening and ribbon conveyer（11）Charging aperture connection, the second triple valve（13）The second discharging opening and three-level
Disintegrating machine（14）Charging aperture connection, tertiary crusher（14）Discharging opening and bucket elevator（12）Charging aperture connection, bucket
Formula elevator（12）Discharging opening and screening machine（15）Charging aperture connection, screening machine（15）The first discharging opening and impurity bucket
（16）Connection, screening machine（15）The second discharging opening and the first tramp iron separator（17）Charging aperture connection, the first tramp iron separator（17）'s
Discharging opening and the 3rd triple valve（18）Charging aperture connection, the 3rd triple valve（18）The first discharging opening and two grade of first disintegrating machine
（9）Charging aperture connection, the 3rd triple valve（18）The second discharging opening and tertiary crusher（14）Charging aperture connection, screening machine
（15）The 3rd discharging opening and the second tramp iron separator（19）Charging aperture connection, the second tramp iron separator（19）Discharging opening and finished bin
（20）Charging aperture connection.
2. the efficient grinding system of aluminum cell electrolyte crust block according to claim 1, it is characterised in that cyclone dust removal
Device（22）Air inlet be connected with the mouth that gathers dust of each equipment, cyclone dust collectors（22）Air outlet and pulse dust collector（23）Enter
Air port is connected, cyclone dust collectors（22）Discharging opening and conveying worm（21）Charging aperture connection, conveying worm（21）'s
Discharging opening and finished bin（20）Charging aperture connection, pulse dust collector（23）Air outlet and blower fan（24）Air inlet connection,
Pulse dust collector（23）Discharging opening and finished bin（20）Charging aperture connection.
3. the efficient grinding system of aluminum cell electrolyte crust block according to claim 1, it is characterised in that the first threeway
Valve（1）, the second triple valve（13）With the 3rd triple valve（18）For automatic or manual triple valve.
4. the efficient grinding system of aluminum cell electrolyte crust block according to claim 1, it is characterised in that the first vibration
Batcher（7）, the second oscillating feeder（8）For electro-vibrating feeder or motor oscillating batcher.
5. the efficient grinding system of aluminum cell electrolyte crust block according to claim 1, it is characterised in that described sieve
Extension set（15）For double deck screen, the superiors possess the online function of excluding debris.
6. the efficient grinding system of aluminum cell electrolyte crust block according to claim 2, it is characterised in that described arteries and veins
Rush deduster（23）For sack cleaner or filter cartridge dust remover.
7. the efficient grinding system of aluminum cell electrolyte crust block according to claim 1, it is characterised in that it is described into
Product storehouse（20）Dischargeable capacity is 800m3More than.
8. the efficient grinding system of aluminum cell electrolyte crust block according to claim 1, it is characterised in that one-level first
Disintegrating machine（2）With the disintegrating machine of one-level second（3）For the using and the reserved.
9. the efficient grinding system of aluminum cell electrolyte crust block according to claim 1, it is characterised in that two grade first
Disintegrating machine（9）For board-like impact crusher, two grade of second disintegrating machine（10）For small grade jaw crusher.
10. the efficient grinding system of aluminum cell electrolyte crust block according to claim 1, it is characterised in that three-level is crushed
Machine is flour mill, interior to be provided with synchronous rotary screen cloth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432195.8U CN206382105U (en) | 2016-12-26 | 2016-12-26 | The efficient grinding system of aluminum cell electrolyte crust block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432195.8U CN206382105U (en) | 2016-12-26 | 2016-12-26 | The efficient grinding system of aluminum cell electrolyte crust block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206382105U true CN206382105U (en) | 2017-08-08 |
Family
ID=59489929
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621432195.8U Expired - Fee Related CN206382105U (en) | 2016-12-26 | 2016-12-26 | The efficient grinding system of aluminum cell electrolyte crust block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206382105U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723738A (en) * | 2017-10-24 | 2018-02-23 | 云南云铝涌鑫铝业有限公司 | The system of process aluminum electrolytic pole feeding |
-
2016
- 2016-12-26 CN CN201621432195.8U patent/CN206382105U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107723738A (en) * | 2017-10-24 | 2018-02-23 | 云南云铝涌鑫铝业有限公司 | The system of process aluminum electrolytic pole feeding |
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Granted publication date: 20170808 Termination date: 20191226 |