CN108792908A - The device of flat rounded tail rope is recycled in a kind of mechanization - Google Patents
The device of flat rounded tail rope is recycled in a kind of mechanization Download PDFInfo
- Publication number
- CN108792908A CN108792908A CN201810886870.1A CN201810886870A CN108792908A CN 108792908 A CN108792908 A CN 108792908A CN 201810886870 A CN201810886870 A CN 201810886870A CN 108792908 A CN108792908 A CN 108792908A
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- CN
- China
- Prior art keywords
- tail rope
- separating
- recycled
- flat
- closing type
- 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.)
- Granted
Links
- 239000003638 chemical reducing agent Substances 0.000 claims abstract description 26
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000035807 sensation Effects 0.000 claims description 4
- 238000004064 recycling Methods 0.000 abstract description 9
- 235000013351 cheese Nutrition 0.000 description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000003137 locomotive effect Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B19/00—Mining-hoist operation
- B66B19/02—Installing or exchanging ropes or cables
Landscapes
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of mechanization recycling is flat, the device of rounded tail rope, including trolley, left side on the trolley is equipped with speed reducer pedestal, the speed reducer pedestal is equipped with speed reducer, the right side of the speed reducer pedestal is equipped with fixing bracket, the support bracket fastened bottom end is connect with trolley, the support bracket fastened right side is equipped with separating-closing type holder, the bottom end of the separating-closing type holder is connect with trolley, the fixing bracket and separating-closing type pedestal upper end are equipped with central rotating shaft, one end of the central rotating shaft connects wheel with speed reducer, flexible reel is installed on the central rotating shaft between the fixing bracket and separating-closing type holder.
Description
Technical field
Present invention relates particularly to the devices that flat rounded tail rope is recycled in a kind of mechanization.
Background technology
The main function of tail rope is the load for balancing head rope in vertical shaft for mine lifting system；For, various steel wire ropes, have
Different maintenance crafts and arrangement and method for construction.Here a brief description mainly is done to the maintenance craft of cage bottom tail rope：
1,24 row main shafts are one of the main vertical shafts in two mining areas
24 row vertical shafts be current Jinchuan Group company up-to-dateness highest, promoted it is fastest, reach 16m/s, promoted depth
Most deep well, hoisting depth are 1082 meters.Steel wire disk is horizontal to underground 810 using transported on trucks, due to head-room limit
System is first used the lower flat car in chassis, is transported by gallery, and working site is reached.It is limited by work on the spot environment, with one 20
Ton jack is matched with 10 tons of jacks, and steel wire disk is lifted on cheese vehicle.The old fag end for removing northern skip bucket is poured out new
Fag end is attached with northern skip bucket bottom.One 3 tons of winch is installed at 85 meters of tunnel, by steel wire rope head move to setting with it is old
Fag end connects.Then northern skip bucket starts on slow, and new rope is driven to run up.Under southern skip bucket starts slowly, old rope is driven to run down.
Meanwhile signal is transmitted, it starts 3 tons of winches and draws old rope.It is primary to recycle old 80 meters of rope, it waits after all having recycled, is cutting off into 8 meters
It one section, is bound with iron wire, manually lifts on flat car and transport to the position of overhead traveling crane, risen and be lifted on automobile, be transported to earth's surface.
Replacement cycle is 24 months.Working efficiency is low, and labor intensity is very big.
Tail rope selected by 24 row main shaft hoisting systems is：Model：ABB Ф more than 4.6 × 6 restrict the choosing of tower friction drive hoist
3 flat-tail rope specifications and length are：160*28mm-(1150m imports rope)（Domestic rope length：1180m）, flat-tail rope substance：
1150m*13.5kg/m=15525kg。
2,30 row auxiliary shafts are one of the main vertical shafts in two mining areas
Tail rope is wrapped on homemade cheese vehicle in earth's surface；Cheese vehicle is transported to 30 row auxiliary well heads with automobile, passes through cage
It is horizontal that cheese vehicle is transported to underground 1150；Cheese vehicle is fixed in 1150 horizontal tunnels；Old rope is cut off, is pulled out on cheese vehicle
The circulator of new fag end and counterweight side bottom be attached；Hoist engine is started, counterweight is run up, cage is run down, profit
Old rope is recycled with electric locomotive；After cage reaches 1150 levels, new rope is poured out from cheese vehicle, and fag end is passed through wellbore bottom
Isolation beams, be drawn to 1150 level, be attached with the circulator of cage bottom.
Tail rope selected by 30 row auxiliary-well takeups is：Model：6 × 37-43, weight：6.55Kg/m, length：
650m, 4.3 tons are always weighed about.As soon as cage has 6 tail ropes suspended from 3 tail ropes, 2 cages.
Past recycles old tail rope using electric locomotive；Due to the length limitation in tunnel, 60 meters can only be once recycled；Motor
Vehicle is opened back, and so on.Old tail rope is dragged in tunnel, then, by manually putting onto tunnel side, is cut off again after waiting for
At 5 meters one section, slowly recycle.Working efficiency is low, and labor intensity is very big.
3, it is linked up with steel wire rope producer and other large-scale mine units, it is thus understood that domestic in the technique for recycling old tail rope at present
On, without what good method, can only manually operate.
Invention content
The object of the present invention is to provide the devices that flat rounded tail rope is recycled in a kind of mechanization.
In order to meet above-mentioned purpose, the technical solution that the present invention takes is：
The device of flat rounded tail rope, including trolley are recycled in a kind of mechanization, and the left side on the trolley is equipped with speed reducer pedestal, institute
It states speed reducer pedestal and is equipped with speed reducer, the right side of the speed reducer pedestal is equipped with fixing bracket, the support bracket fastened bottom end
It is connect with trolley, the support bracket fastened right side is equipped with separating-closing type holder, and the bottom end of the separating-closing type holder is connect with trolley, institute
It states fixing bracket and separating-closing type pedestal upper end is equipped with central rotating shaft, one end of the central rotating shaft connects wheel with speed reducer, institute
It states and flexible reel is installed on the central rotating shaft between fixing bracket and separating-closing type holder.
Preferably, the flexible reel includes fixed baffle, and the fixed baffle is fixedly mounted on centre bearing, described
Flapper is installed on the right side of fixed baffle, the flapper turns to draw up by flapper axle sleeve movable set in center,
Flapper axle sleeve is positioned at center equipped with positioning pin and turns to draw up, and the center between the fixed baffle and flapper turns to take out
On set there are two moving telescopic axle sleeve, several reel crossbeams are equipped with by connecting plate on the moving telescopic axle sleeve.
Preferably, the reel crossbeam on the flexible reel has the six roots of sensation.
Preferably, the both sides on the support bracket fastened top and central rotating shaft junction are equipped with limit stop ring.
Preferably, the central rotating shaft between the fixing bracket and speed reducer is equipped with tension device, the tension device
On stretching screw act on center turn draw up, the tie rod of the tension device is fixed on trolley.
Preferably, the flexible reel is arranged right below flat-tail rope directive wheel, and the flat-tail rope directive wheel passes through tang
Guide wheel bracket of restricting is mounted on trolley.
Preferably, the fixing bracket and separating-closing type holder are A-frame.
Preferably, the bottom end of the separating-closing type holder is flexibly connected by rotary sleeve with trolley, the separating-closing type holder
Top be equipped with limiting plate, the top of the separating-closing type holder is equipped with fastening bolt.
Preferably, where the flexible reel fixed rope headring is equipped at the center of central rotating shaft.
Preferably, it is correspondingly provided with limited block on the fixed baffle and dynamic baffle, limited block matches with reel crossbeam.
Beneficial effects of the present invention are：From it is original more than 1,000 meters of steel wire rope gas cuttings at 8 meters long one section one section,
130 multiple tracks are cut, a large amount of flue dust is will produce, actual bodily harm can be caused to the staff of operation, pass through a kind of machine of the invention
Tool recycles the device of flat rounded tail rope, becomes in order to only need several roads of gas cutting, working environment to obtain greatly improving, greatly
Reduce labor intensity, do not carry manually, but it is coiled lift entrucking with overhead traveling crane, improve work efficiency, reduce and
It pulls back time of traction rope, realizes the effect of mechanization recycling.
Description of the drawings
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is the vertical view of Fig. 1；
Fig. 3 is the structural schematic diagram of central rotating shaft in Fig. 1；
Fig. 4 is the structural schematic diagram of separating-closing type holder in Fig. 1；
Fig. 5 is the structural schematic diagram of flexible reel open configuration in Fig. 1；
Fig. 6 is the structural schematic diagram of flexible reel contraction state in Fig. 1；
In figure：1. speed reducer pedestal, 2. speed reducers, 4. stretching screws, 5. centers turn to take out, 6. limit stop rings, 8. fix
Baffle, 9. reel crossbeams, 10. fixed rope headrings, 11. flappers, 12. limited blocks, 13. connecting plates, 14. moving telescopic axis
Set, 15. positioning pins, 16. flapper axle sleeves, 17. limiting plates, 18. fastening bolts, 19. separating-closing type holders, 23. is small
Vehicle, 26. tail rope guide wheel brackets, 27. flat-tail rope directive wheels, 28. fixing brackets, 29. tension devices, 30. tie rods,
31. flexible reel.
Specific implementation mode
Below in conjunction with the accompanying drawings and operation principle, the present invention is described further：
The device of flat rounded tail rope, including trolley 23 are recycled in a kind of mechanization as shown in Figs. 1-5, and the left side on trolley 23 is equipped with
Speed reducer pedestal 1, speed reducer pedestal 1 are equipped with speed reducer 2, and the right side of speed reducer pedestal 1 is equipped with fixing bracket 28, fixing bracket
28 bottom end is connect with trolley 23, and the right side of fixing bracket 28 is equipped with separating-closing type holder 19, the bottom end of separating-closing type holder 19 with it is small
Vehicle 23 connects, and fixing bracket 28 and 19 upper end of separating-closing type holder are equipped with central rotating shaft 5, and one end of central rotating shaft 5 and speed reducer 2 are right
Wheel connects, and flexible reel 31 is equipped on the central rotating shaft 5 between fixing bracket 28 and separating-closing type holder 19.Flexible reel 31 wraps
Fixed baffle 8 is included, fixed baffle 8 is fixedly mounted on centre bearing 5, and 8 right side of fixed baffle is equipped with flapper 11, activity
Baffle 11 turns to take out on 5 by 16 movable set of flapper axle sleeve in center, and flapper axle sleeve 16 is fixed equipped with positioning pin 15
Turning to take out on 5 positioned at center, the center between fixed baffle 8 and flapper 11, which turns to take out, to be set on 5 there are two moving telescopic axle sleeve 14,
Six roots of sensation reel crossbeam 9 is equipped with by connecting plate 13 on moving telescopic axle sleeve 14, six roots of sensation reel crossbeam 9 is best effect, mistake
It is more or it is very few all can work rotate when send out ear-piercing sound.The top of fixing bracket 28 and the two of 5 junction of central rotating shaft
Side is equipped with limit stop ring 6, and to avoid its central rotating shaft 5, in rotation, there is a phenomenon where mutual dislocations with fixing bracket 28, play
The effect of one limit and clamp.Central rotating shaft 5 between fixing bracket 28 and speed reducer 2 is equipped with tension device 29, tenses
Stretching screw 4 on device 29 acts on center and turns to take out on 5, and the tie rod 30 of tension device 29 is fixed on trolley 23, is made
With being to first have to take down on separating-closing type holder 19 when preparing to remove the tail rope of recycling from flexible reel 31, taking down point
The inclination of its 5 one end of central rotating shaft is avoided when box-like holder 19, plays the role of a centre of equilibrium shaft 5.Flexible reel 31
Be arranged right below flat-tail rope directive wheel 27, flat-tail rope directive wheel 27 is mounted on trolley 23 by flat-tail rope guide wheel bracket 26
On, when the device recycles flat-tail rope, flat-tail rope just enters 31 last time of reel of stretching after being oriented to by flat-tail rope directive wheel 27
It receives.Fixing bracket 28 and separating-closing type holder 19 are A-frame, and the stability of A-frame is more preferable.The bottom of separating-closing type holder 19
End is flexibly connected by rotary sleeve with trolley 23, and equipped with limiting plate 17, it is to allow division to act on for the top of separating-closing type holder 19
The contact action area bigger on 19 top of formula holder extends its service life, separating-closing type branch to protect 19 top of separating-closing type holder
The top of frame 19 is equipped with fastening bolt 18.It is equipped with fixed rope headring 10 at the center of 31 place central rotating shaft of flexible reel,
Effect is first to fasten fag end in fixed rope headring 10 before recycling tail rope, avoids skidding when rotating back to ending rope.Fixed baffle
8 and dynamic baffle 11 on be correspondingly provided with limited block 12, limited block 12 matches with reel crossbeam 9, effect be in flexible reel
When 31 rotation, reel crossbeam 9 thereon is stuck on fixed baffle 8 and dynamic baffle 11, plays the role of a positioning.
In use, as shown in Figure 1, the methods && steps of implementation that the present invention is provided when recycling flat-tail rope is：
Old tang fag end is moved at recovery vehicle, by 27 lower part of flat-tail rope directive wheel, by flat-tail rope directive wheel 27 fag end
It hangs together with the reel crossbeam 9 on flexible reel 31, it is by fixed rope headring 10 that the binding of flat-tail rope fag end is firm with iron wire,
Start to start the rotation counterclockwise of cycloidal planetary gear speed reducer 2, when waiting old flat-tail rope that will be wrapped over, cuts off old flat-tail rope, it will with iron wire
This rolls up old flat-tail rope point and binds everywhere, and binding wants firm；Then, with the lumps of wood the flat-tail rope bound and 23 bottom platform of trolley
Between gap cover；Tension device 29 is rotated again, central rotating shaft 5 is enable to fix, then dismantles the fastening of separating-closing type holder 19
Bolt 18 is opened on trolley 23 it by the rotary sleeve of 19 bottom end of separating-closing type holder；The work on centre bearing 5 is dismantled again
Positioning pin 15 on dynamic baffle 11, takes out flapper 11, after taking out flapper 11, the reel crossbeam 9 on flexible reel 31
Can be under the action of flat-tail rope, reel crossbeam 9 can give 14 pressure of moving telescopic axle sleeve by connecting plate 13 so that its reel crossbeam 9
It moves right, the diameter for the reel 31 that stretches in this way can become smaller, it will be able to easily take out very much the flat-tail rope bound, recycle
Lifting anchor pole at the top of tunnel hangs out old flat-tail rope on the central rotating shaft 5 of recycling trolley 23 with jack, is put into another tablet
Tunnel is transported on vehicle.
After having recycled, then flexible reel 31, flapper 11, positioning pin 15 and separating-closing type holder 19 are installed again successively
Original unclamps tension device 29, enables 5 flexible rotating of central rotating shaft, carry out subsequent recycling flat-tail rope.
Similarly, when recycling rounded tail rope, flat-tail rope guide wheel bracket 26 and flat-tail rope directive wheel 27 need to only be removed.
Above-described is only the preferred embodiment of invention, not the limitation present invention.It should be understood that for the general of this field
For logical technical staff, under technical inspiration provided by the present invention, other equivalent modifications and improvement can also be made, it can be with
It achieves the object of the present invention, is regarded as protection scope of the present invention.
Claims (10)
1. the device of flat rounded tail rope is recycled in a kind of mechanization, it is characterised in that：Including trolley（23）, the trolley（23）On
Left side is equipped with speed reducer pedestal（1）, the speed reducer pedestal（1）It is equipped with speed reducer（2）, the speed reducer pedestal（1）The right side
Side is equipped with fixing bracket（28）, the fixing bracket（28）Bottom end and trolley（23）Connection, the fixing bracket（28）The right side
Side is equipped with separating-closing type holder（19）, the separating-closing type holder（19）Bottom end and trolley（23）Connection, the fixing bracket（28）
With separating-closing type holder（19）Upper end is equipped with central rotating shaft（5）, the central rotating shaft（5）One end and speed reducer（2）Wheel is connected,
The fixing bracket（28）With separating-closing type holder（19）Between central rotating shaft（5）On flexible reel is installed（31）.
2. the device of flat rounded tail rope is recycled in a kind of mechanization according to claim 1, it is characterised in that：The flexible volume
Cylinder（31）Including fixed baffle（8）, the fixed baffle（8）It is fixedly mounted on centre bearing（5）On, the fixed baffle（8）
Right side is equipped with flapper（11）, the flapper（11）Pass through flapper axle sleeve（16）Movable set turns to take out in center
（5）On, flapper axle sleeve（16）It is equipped with positioning pin（15）Center is positioned to turn to take out（5）On, the fixed baffle（8）With work
Dynamic baffle（11）Between center turn take out（5）On set there are two moving telescopic axle sleeve（14）, the moving telescopic axle sleeve（14）On
Pass through connecting plate（13）Several reel crossbeams are installed（9）.
3. the device of flat rounded tail rope is recycled in a kind of mechanization according to claim 1 or 2, it is characterised in that：It is described flexible
Reel（31）On reel crossbeam（9）There is the six roots of sensation.
4. the device of flat rounded tail rope is recycled in a kind of mechanization according to claim 3, it is characterised in that：The fixed branch
Frame（28）Top and central rotating shaft（5）The both sides of junction are equipped with limit stop ring（6）.
5. the device of flat rounded tail rope is recycled in a kind of mechanization according to claim 1 or 4, it is characterised in that：The fixation
Holder（28）With speed reducer（2）Between central rotating shaft（5）It is equipped with tension device（29）, the tension device（29）On drawing
Tight screw rod（4）Center is acted on to turn to take out（5）On, the tension device（29）Tie rod（30）It is fixed on trolley（23）On.
6. the device of flat rounded tail rope is recycled in a kind of mechanization according to claim 5, it is characterised in that：The flexible volume
Cylinder（31）Be arranged right below flat-tail rope directive wheel（27）, the flat-tail rope directive wheel（27）Pass through flat-tail rope guide wheel bracket
（26）Mounted on trolley（23）On.
7. the device of flat rounded tail rope is recycled in a kind of mechanization according to claim 1 or 6, it is characterised in that：The fixation
Holder（28）With separating-closing type holder（19）For A-frame.
8. the device of flat rounded tail rope is recycled in a kind of mechanization according to claim 7, it is characterised in that：The separating-closing type
Holder（19）Bottom end pass through rotary sleeve and trolley（23）Flexible connection, the separating-closing type holder（19）Top be equipped with limit
Plate（17）, the separating-closing type holder（19）Top fastening bolt is installed（18）.
9. the device of flat rounded tail rope is recycled in a kind of mechanization according to claim 1 or 8, it is characterised in that：It is described flexible
Reel（31）Fixed rope headring is equipped at the center of place central rotating shaft（10）.
10. the device of flat rounded tail rope is recycled in a kind of mechanization according to claim 9, it is characterised in that：The fixed gear
Plate（8）With dynamic baffle（11）On be correspondingly provided with limited block（12）, limited block（12）With reel crossbeam（9）Match.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810886870.1A CN108792908B (en) | 2018-08-06 | 2018-08-06 | Device for mechanically recycling flat and round tail ropes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810886870.1A CN108792908B (en) | 2018-08-06 | 2018-08-06 | Device for mechanically recycling flat and round tail ropes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108792908A true CN108792908A (en) | 2018-11-13 |
| CN108792908B CN108792908B (en) | 2023-11-21 |
Family
ID=64079319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810886870.1A Active CN108792908B (en) | 2018-08-06 | 2018-08-06 | Device for mechanically recycling flat and round tail ropes |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108792908B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003053821A1 (en) * | 2001-12-13 | 2003-07-03 | Foeckersperger Walter | Rope winch assembly with pivoting rope winch |
| CN104276520A (en) * | 2014-09-23 | 2015-01-14 | 申锡机械有限公司 | Multi-roller rope withdrawing and releasing device |
| CN105947857A (en) * | 2016-06-21 | 2016-09-21 | 淮南矿业(集团)有限责任公司 | Flat tail rope replacement device of vertical shaft hoisting system |
| CN106946120A (en) * | 2017-05-02 | 2017-07-14 | 中国矿业大学 | A kind of extra deep shaft hoisting container end steel wire rope tension adjusting means and method |
| CN207361659U (en) * | 2017-09-06 | 2018-05-15 | 武汉东创黄冈海洋实业有限公司 | A kind of new shift automatic cable arranging device |
-
2018
- 2018-08-06 CN CN201810886870.1A patent/CN108792908B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003053821A1 (en) * | 2001-12-13 | 2003-07-03 | Foeckersperger Walter | Rope winch assembly with pivoting rope winch |
| CN104276520A (en) * | 2014-09-23 | 2015-01-14 | 申锡机械有限公司 | Multi-roller rope withdrawing and releasing device |
| CN105947857A (en) * | 2016-06-21 | 2016-09-21 | 淮南矿业(集团)有限责任公司 | Flat tail rope replacement device of vertical shaft hoisting system |
| CN106946120A (en) * | 2017-05-02 | 2017-07-14 | 中国矿业大学 | A kind of extra deep shaft hoisting container end steel wire rope tension adjusting means and method |
| CN207361659U (en) * | 2017-09-06 | 2018-05-15 | 武汉东创黄冈海洋实业有限公司 | A kind of new shift automatic cable arranging device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108792908B (en) | 2023-11-21 |
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Effective date of registration: 20240531 Address after: 737104 No. 2 Lanzhou Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province Patentee after: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region after: China Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: JINCHUAN GROUP Co.,Ltd. Country or region before: China |