CN209161940U - A kind of top dress makes the coal supply system of integrated coke oven firm by ramming - Google Patents
A kind of top dress makes the coal supply system of integrated coke oven firm by ramming Download PDFInfo
- Publication number
- CN209161940U CN209161940U CN201820464950.3U CN201820464950U CN209161940U CN 209161940 U CN209161940 U CN 209161940U CN 201820464950 U CN201820464950 U CN 201820464950U CN 209161940 U CN209161940 U CN 209161940U
- Authority
- CN
- China
- Prior art keywords
- coal
- ramming
- firm
- coke oven
- conveying device
- 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.)
- Withdrawn - After Issue
Links
- 239000003245 coal Substances 0.000 title claims abstract description 211
- 239000000571 coke Substances 0.000 title claims abstract description 64
- 238000007599 discharging Methods 0.000 claims description 23
- 238000003860 storage Methods 0.000 claims description 9
- 238000005303 weighing Methods 0.000 claims description 9
- 230000001174 ascending effect Effects 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 26
- 238000004939 coking Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004484 Briquette Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000003032 molecular docking Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000010181 polygamy Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
Landscapes
- Coke Industry (AREA)
Abstract
The utility model relates to the coal supply systems that a kind of top dress makes integrated coke oven firm by ramming, including coal tower, top to fill charging car and make station firm by ramming, and top dress charging car can be filled in the feed opening of coal store and coke oven top along top dress coal charging car track and be moved between coal port；It makes the pusher side that station is set to platform between coke oven firm by ramming, makes station firm by ramming equipped with coal scuttle is made firm by ramming, make firm by ramming and set coal feed point at the top of coal scuttle；Including Pneumatic conveying device and Pneumatic conveying device track, Pneumatic conveying device track, which is set to, to be made firm by ramming above coal scuttle and extends horizontally to below coal store, Pneumatic conveying device can be moved along Pneumatic conveying device track, and realize that the feed opening of coal store is docked with the movement for the coal feed point for making coal scuttle firm by ramming.The utility model can satisfy top dress and make the demand of two kinds of production models firm by ramming, and the furnace coal in coal tower will not be formed about dead zone in feed opening, and feed opening is avoided to block because coal charge is hardened, increase the dischargeable capacity of coal filling tower；And the coal supply system can also be realized unattended by interlocked control.
Description
Technical field
The utility model relates to coking production technical field more particularly to a kind of top dress make firm by ramming integrated coke oven to coal measures
System.
Background technique
In China, the coking technology of mainstream is broadly divided into top dress coking by coke oven technology and tamping coke furnace coking technology two at present
Kind, since the high-quality main coking coal resource in China is nervous, under the premise of guaranteeing same weight of coke, tamping coke furnace coking is than top
Dress coking by coke oven at most can polygamy enter 30% weak caking coal, reduce coking production cost.But top dress coke oven is relative to smashing
Gu coke oven has many advantages, such as that simple production process, coke oven for iron maintenance are small, based on the above reasons, more and more coal chemical enterprises
Tending to selection not only can be carried out tamper production, but also can be carried out the coke oven of top dress production, and after the coke oven for configuring this form, enterprise can
According to factors such as market conditions, coal resources, the switching of top dress coking by coke oven and tamping coke furnace coking production model, production are carried out
Mode is more flexible, and can increase the economic benefit of enterprise.
The top of top dress coke oven coaling tower be typically located between two coke ovens between above platform, on the top that oven top of coke oven moves
Dress charging car can be directly entered top and coaling tower received down furnace coal, and the coal tamping tower of tamping coke furnace is typically located between coke oven
The pusher side of platform, while coal tamping tower received down furnace coal, the tamping unit of coal tamping tower setting will be smash tamping charging car
Gu the furnace coal in case is pounded briquette.For having top dress to make the coke oven coal supply system of function firm by ramming simultaneously, have disclosed at present
Technical solution is to be respectively set that feed opening is coaling on several groups of tops and several groups of coal tamping feed openings, furnace roof are coaling in top tower bottom of coalingging
Vehicle, which can be directly entered top, coalings to coaling from top below tower and receives furnace coal from feed opening, is arranged below coal tamping feed opening and fixes
Coal tamping is delivered to coal tamping tower by transporting coal belt feeder, and mutually not general between two kinds of feed openings, this is just that coke oven production mode is cut
Following problem is brought when changing:
(1) when coke oven is in top dress coke oven production mode, being stored in the coal near coal tamping feed opening can not be unloaded down, shape
At dead zone, if the long period switches without production model, the coal near coal tamping feed opening is easy hardened, and blocking is made firm by ramming
Coal feed opening.When coke oven is from top dress production model to tamper production pattern switching, due to the coal plate near coal tamping feed opening
Knot, feed opening being blocked are then needed to spend a large amount of cleaning of artificial and time feed openings, be made troubles to production model switching.Similarly
When coke oven switches from tamper production mode to top dress production model, similar trouble can be also encountered.
(2) no matter which kind of production model coke oven is in, since the coal near another production model coal feed opening is formed extremely
Area becomes smaller so that coal tower obtains dischargeable capacity, and the practical coal storage ability of coal tower is caused to become smaller.
Summary of the invention
The utility model provides a kind of coal supply system for pushing up dress and making integrated coke oven firm by ramming, can not only meet top dress and smash
Gu the demand of two kinds of production models, and the furnace coal in coal tower will not be formed about dead zone in feed opening, avoid feed opening because
Coal charge is hardened and blocks, while increasing the dischargeable capacity of coal filling tower；And the coal supply system can also realize nobody by interlocked control
It is on duty.
In order to achieve the above object, the utility model is implemented with the following technical solutions:
A kind of top dress makes the coal supply system of integrated coke oven firm by ramming, including coal tower, top fill charging car and make station, the coal tower firm by ramming
The top of platform between coke oven, including coal tower frame and coal store be set, below coal store between set top dress coal charging car track on platform,
Top dress charging car can move between the feed opening of coal store and coke oven top dress coal port along top dress coal charging car track；Make station firm by ramming
The pusher side of platform between coke oven makes station firm by ramming equipped with coal scuttle is made firm by ramming, makes firm by ramming and set coal feed point at the top of coal scuttle；It is filled including Pneumatic conveying
Set with Pneumatic conveying device track, the Pneumatic conveying device track, which is set to, makes firm by ramming above coal scuttle and extends horizontally to storage
Below coal bunker, Pneumatic conveying device can be moved along Pneumatic conveying device track, and realize the feed opening of coal store with
Make the mobile docking of the coal feed point of coal scuttle firm by ramming.
The bottom of the coal store is equipped with 2~5 2~4 rows, every row feed openings, and each feed opening bottom is respectively equipped with discharging
Device.
When top dress charging car and coal store feed opening cooperate transporting coal when, device for discharging and top dress charging car coal feed point it
Between temporarily install discharge chute additional.
The Pneumatic conveying device track is located at one section made firm by ramming above coal scuttle and is set to floor top surface, is located under coal store
One section of side is fixedly connected with coal tower frame.
The bottom for making coal scuttle firm by ramming is equipped with automatic weighing device, the conveying of automatic weighing device and Pneumatic conveying device
Device for discharging in driving device, coal store passes through control system interlocked control.
It is defeated that the Pneumatic conveying device is movable belt conveyor, mobile spiral conveyer, movable type buries scraper plate
Send machine, mobile jigging conveyer or mobile chain-linked conveyer.
When the Pneumatic conveying device is movable belt conveyor, movable belt conveyor is equipped with multiple fixations
Formula belt plow is for realizing multiple discharge, and each fixed belt plow is evenly arranged along coal charge conveying direction, and edge
The ascending setting of aperture of each fixed belt plow of coal charge conveying direction.
The Pneumatic conveying device is that mobile spiral conveyer, mobile embedded scraper transporter, mobile vibration are defeated
When sending machine or mobile chain-linked conveyer, Pneumatic conveying bottom of device is equipped with multiple discharge ports along coal charge conveying direction.
The device for discharging is electric gate valve or electric hydraulic valve.
Compared with prior art, the utility model has the beneficial effects that
1) the needs of coal supply system described in the utility model can not only meet top dress and make two kinds of production models firm by ramming, and
Furnace coal will not be formed about dead zone in coal store feed opening, and feed opening is avoided to block because coal charge is hardened；
2) all feed openings of coal store are suitable for pushing up dress and tamper production, with the coal storage for being respectively equipped with two kinds of feed openings
Storehouse is compared, and can be given full play to the coal storage ability of coal store, be increased the dischargeable capacity of coal store；
3) it makes coal scuttle firm by ramming and sets automatic weighing device, interlock and control with the device for discharging at Pneumatic conveying device and feed opening
System, when to coal operation coal tower and make firm by ramming station can be realized by interlocked control it is unattended.
Detailed description of the invention
Fig. 1 is that a kind of top dress described in the utility model makes the structural schematic diagram of integrated coke oven coal supply system firm by ramming (with movement
For formula belt conveyor).
Fig. 2 is cross-sectional structure schematic diagram of the coal store described in the utility model when coke oven is using top dress mode of manufacture
(by taking movable belt conveyor as an example).
Fig. 3 is the A-A diagrammatic cross-section in Fig. 1.
Fig. 4 is cross-sectional structure schematic diagram of the coal store described in the utility model when mode of manufacture is made in coke oven use firm by ramming
(by taking movable belt conveyor as an example).
In figure: it is mobile that 1. coal stores 2. make station 3. feed opening, 4. device for discharging, 5. Pneumatic conveying device 6. firm by ramming
The fixed belt plow 8. of conveying device track 7. make firm by ramming between 9. coke oven of coal scuttle 10. discharge chute 11. of platform it is rock type to
12. tamping tool 13. of material machine top dress charging car
Specific embodiment
Specific embodiment of the present utility model is described further with reference to the accompanying drawing:
As shown in Figure 1, a kind of top dress described in the utility model makes the coal supply system of integrated coke oven, including coal tower, top firm by ramming
It fills charging car 13 and makes station 2 firm by ramming, the top of platform 9 between coke oven, including coal tower frame and coal store 1, coal storage is arranged in the coal tower
Top dress coal charging car track is set between the coke oven of 1 lower section of storehouse on platform 9, top dress charging car 13 can be along top dress coal charging car track in coal store
It is moved between 1 feed opening 3 and coke oven top dress coal port；Make firm by ramming station 2 be set to coke oven between platform 9 pusher side, make firm by ramming station 2 be equipped with make firm by ramming
Coal scuttle 8, the top for making coal scuttle 8 firm by ramming set coal feed point；It further include Pneumatic conveying device 5 and Pneumatic conveying device track 6, it is described
Pneumatic conveying device track 6, which is set to, makes 8 top of coal scuttle firm by ramming and extends horizontally to 1 lower section of coal store, Pneumatic conveying device 5
It can be moved along Pneumatic conveying device track 6, and realize the shifting of the feed opening and the coal feed point for making coal scuttle 8 firm by ramming of coal store 1
Dynamic docking.
The lower part of the coal store 1 is equipped with 2~5 2~4 rows, every row feed openings, and each feed opening bottom is respectively equipped with discharging
Device 4.
When the feed opening 3 of top dress charging car 13 and coal store 1 cooperates transporting coal, device for discharging 4 and top dress charging car 13
Temporarily install discharge chute 10 between coal feed point additional.
The Pneumatic conveying device track 6 is located at one section that makes 8 top of coal scuttle firm by ramming set on floor top surface, is located at coal store
One section of 1 lower section is fixedly connected with coal tower frame.
The bottom for making coal scuttle 8 firm by ramming is equipped with automatic weighing device, and automatic weighing device is defeated with Pneumatic conveying device 5
Driving device, the device for discharging 4 on coal store 1 is sent to pass through control system interlocked control.
It is defeated that the Pneumatic conveying device 5 is movable belt conveyor, mobile spiral conveyer, movable type buries scraper plate
Send machine, mobile jigging conveyer or mobile chain-linked conveyer.
When the Pneumatic conveying device 5 is movable belt conveyor, movable belt conveyor is equipped with multiple solid
Fixed pattern belt plow 7 is evenly arranged for realizing multiple discharge, each fixed belt plow 7 along coal charge conveying direction,
And along the ascending setting of aperture of each fixed belt plow 7 of coal charge conveying direction.
The Pneumatic conveying device 5 is that mobile spiral conveyer, mobile embedded scraper transporter, mobile vibration are defeated
When sending machine or mobile chain-linked conveyer, 5 bottom of Pneumatic conveying device is equipped with multiple discharge ports along coal charge conveying direction.
The device for discharging 4 is electric gate valve or electric hydraulic valve.
A kind of top dress described in the utility model makes the coal supply system of integrated coke oven firm by ramming, mainly includes fixed coal storage device
With mobile coal conveyer, wherein fixed coal storage device includes the coal store 1 between coke oven is arranged in right above platform 9, and setting exists
9 pusher side of platform makes firm by ramming in station 2 and makes coal scuttle 8 firm by ramming between coke oven, and mobile coal conveyer includes top dress dress when coalingging for coke oven top
Coal car 13, and for the coal charge in coal tower to be transported to the Pneumatic conveying device 5 made firm by ramming in coal scuttle 8.
As shown in Figure 1, carrying out the coal store 1 that coal is sent into coal tower between standby coal car, coal store 1 generally contains coke oven production 8~16
Coal amount needed for hour.
As shown in Fig. 2, when top dress makes integrated coke oven firm by ramming using top dress mode of manufacture, by 5 edge of Pneumatic conveying device
Pneumatic conveying device track 6, which is run to, makes station 2 firm by ramming, and top dress charging car 13 is run along top dress coal charging car track to coal store 1
Lower section temporarily installs discharge chute 10 in 4 bottom of device for discharging of the corresponding feed opening 3 of coal store 1, opens device for discharging 4, coal storage
Coal charge in storehouse 1 can enter top dress charging car 13 by device for discharging 4 and discharge chute 10.
As shown in figure 1, figure 3 and figure 4, the Pneumatic conveying device 5 is movable belt conveyor, traveling type belt
2~6 fixed belt plows 7 are arranged on conveyer, along coal charge conveying direction, opening per fixed belt plow 7
Degree of leaving is become larger by small, guarantees the uniform distribution on making 8 length direction of coal scuttle firm by ramming of Pneumatic conveying device 5.
When on top, dress makes integrated coke oven firm by ramming using mode of manufacture is made firm by ramming, first by top dress charging car 13 under coal store 1
Fang Yikai removes discharge chute 10, then Pneumatic conveying device 5 is run between coke oven along Pneumatic conveying device track 6
In platform 9, the receiving opening of Pneumatic conveying device 5 is made to dock (as shown in Figure 4) with the device for discharging 4 of coal store 1, it is mobile at this time
Multiple emptying points of conveying device 5 are respectively positioned on the top for making 8 coal feed point of coal scuttle firm by ramming, open device for discharging 4 and Pneumatic conveying dress
Set 5, furnace coal can be sent by device for discharging 4 and conveying-type conveying device 5 make the making firm by ramming in coal scuttle 8 of station 2 firm by ramming.
Coal scuttle 8 is made firm by ramming as shown in figure 3, making station 2 firm by ramming and being provided with 2, and making 8 bottom of coal scuttle firm by ramming, rock type batcher is set
11, for making firm by ramming furnace coal feeding tamping charging car in case, while the tamping tool 12 of 2 setting of station is made firm by ramming for case will to be made firm by ramming
Coal charge make into briquette firm by ramming.
The coal scuttle 8 of making firm by ramming has the function of weighing automatically, and controls with Pneumatic conveying device 5 and the interlocking of device for discharging 4
System opens device for discharging 4 and Pneumatic conveying device 5 to coal tamping when making when weighing less than the minimum limit value of setting of coal scuttle 8 firm by ramming
Device for discharging 4 and Pneumatic conveying device 5 are closed when the weight for making coal scuttle 8 firm by ramming is greater than setting highest limit value into coal in bucket 8
Stop to making firm by ramming in coal scuttle 8 into coal.
The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not
It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model
Within enclosing.
Claims (8)
1. a kind of top dress makes the coal supply system of integrated coke oven firm by ramming, including coal tower, top fill charging car and make station firm by ramming, and the coal tower is set
The top of the platform between coke oven, including coal tower frame and coal store are set, is set on platform between the coke oven below coal store and pushes up track of coalingging
Road, top dress charging car can move between the feed opening of coal store and coke oven top dress coal port along top dress coal charging car track；It smashes
Gu station is set to the pusher side of platform between coke oven, station is made firm by ramming equipped with coal scuttle is made firm by ramming, makes firm by ramming and sets coal feed point at the top of coal scuttle；It is characterized in that,
It further include Pneumatic conveying device and Pneumatic conveying device track, the Pneumatic conveying device track is set to and makes firm by ramming on coal scuttle
It side and extends horizontally to below coal store, Pneumatic conveying device can be moved along Pneumatic conveying device track, and real
The feed opening of existing coal store is docked with the movement for the coal feed point for making coal scuttle firm by ramming.
2. the coal supply system that a kind of top dress according to claim 1 makes integrated coke oven firm by ramming, which is characterized in that the coal storage
The bottom in storehouse is equipped with 2~5 2~4 rows, every row feed openings, and each feed opening bottom is respectively equipped with device for discharging.
3. the coal supply system that a kind of top dress according to claim 2 makes integrated coke oven firm by ramming, which is characterized in that when top dress dress
When the feed opening of coal car and coal store cooperates transporting coal, material unloading chute is temporarily installed additional between device for discharging and the coal feed point of top dress charging car
Slot.
4. the coal supply system that a kind of top dress according to claim 1 makes integrated coke oven firm by ramming, which is characterized in that the movement
Formula conveying device track is located at one section made firm by ramming above coal scuttle and is set to floor top surface, one section below coal store and coal tower frame
Frame is fixedly connected.
5. the coal supply system that a kind of top dress according to claim 1 makes integrated coke oven firm by ramming, which is characterized in that described to make firm by ramming
The bottom of coal scuttle is equipped with automatic weighing device, feed drive device, the coal store of automatic weighing device and Pneumatic conveying device
On device for discharging pass through control system interlocked control.
6. the coal supply system that a kind of top dress according to claim 1 makes integrated coke oven firm by ramming, which is characterized in that the movement
Formula conveying device is movable belt conveyor, and movable belt conveyor is equipped with multiple fixed belt plows for real
Existing multiple discharge, each fixed belt plow are evenly arranged along coal charge conveying direction, and each solid along coal charge conveying direction
The ascending setting of the aperture of fixed pattern belt plow.
7. the coal supply system that a kind of top dress according to claim 1 makes integrated coke oven firm by ramming, which is characterized in that the movement
Formula conveying device is mobile spiral conveyer, mobile embedded scraper transporter, mobile jigging conveyer or mobile chain type
Conveyer, Pneumatic conveying bottom of device are equipped with multiple discharge ports along coal charge conveying direction.
8. the coal supply system that a kind of top dress according to claim 2 makes integrated coke oven firm by ramming, which is characterized in that the discharging
Device is electric gate valve or electric hydraulic valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820464950.3U CN209161940U (en) | 2018-03-30 | 2018-03-30 | A kind of top dress makes the coal supply system of integrated coke oven firm by ramming |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820464950.3U CN209161940U (en) | 2018-03-30 | 2018-03-30 | A kind of top dress makes the coal supply system of integrated coke oven firm by ramming |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209161940U true CN209161940U (en) | 2019-07-26 |
Family
ID=67326295
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820464950.3U Withdrawn - After Issue CN209161940U (en) | 2018-03-30 | 2018-03-30 | A kind of top dress makes the coal supply system of integrated coke oven firm by ramming |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209161940U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108329934A (en) * | 2018-03-30 | 2018-07-27 | 中冶焦耐(大连)工程技术有限公司 | A kind of top dress makes the coal supply system of integrated coke oven firm by ramming |
-
2018
- 2018-03-30 CN CN201820464950.3U patent/CN209161940U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108329934A (en) * | 2018-03-30 | 2018-07-27 | 中冶焦耐(大连)工程技术有限公司 | A kind of top dress makes the coal supply system of integrated coke oven firm by ramming |
| CN108329934B (en) * | 2018-03-30 | 2024-02-13 | 中冶焦耐(大连)工程技术有限公司 | Coal feeding system of top-loading tamping integrated coke oven |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN208898799U (en) | A kind of coal supply system for making integrated coke oven firm by ramming suitable for pushing up dress | |
| WO2022088475A1 (en) | Rectangular warehouse with multi-channel feeding, full-plane discharging and folding-type scraping | |
| CN101759043B (en) | Quantitative rock soil ore loading station | |
| CN201245378Y (en) | Circular storage yard feed back system | |
| CN209161940U (en) | A kind of top dress makes the coal supply system of integrated coke oven firm by ramming | |
| CN206678185U (en) | With reference to the sunk type concrete mixing plant in stock ground | |
| CN108315023A (en) | It is a kind of to be suitable for pushing up the coal supply system that dress makes integrated coke oven firm by ramming | |
| CN108456535B (en) | Coal feeding system for top-loading tamping integrated coke oven | |
| CN108329934A (en) | A kind of top dress makes the coal supply system of integrated coke oven firm by ramming | |
| CN208121021U (en) | Top dress makes the coal supply system of integrated coke oven firm by ramming | |
| WO2022088476A1 (en) | Multi-channel feeding and full-plane discharging telescopic scraping rectangular material warehouse | |
| CN210082107U (en) | Ground bin type automatic feeding system | |
| CN204568741U (en) | Promote skip bucket coal-blending device | |
| CN203306707U (en) | Transfer hopper of belt conveyor | |
| CN108504365B (en) | Movable coal conveying cloth belt conveyor for feeding coal to top-loading tamping integrated coke oven | |
| CN103029996A (en) | Coal delivering device | |
| CN214934273U (en) | Semi coke screening system | |
| CN206765101U (en) | With reference to the sunk type stabilized soil mixing station in stock ground | |
| CN108456534B (en) | Top-loading tamping integrated coke oven coal feeding process | |
| CN210339612U (en) | Automatic leveling type horizontal warehousing system for anti-blocking warehouse | |
| CN210735589U (en) | Bridge type chain bucket stacker-reclaimer | |
| CN208649226U (en) | Top dress makes integrated coke oven firm by ramming and gives coal mobile defeated coal cloth embedded scraper transporter | |
| CN103723528A (en) | Ore stock yard discharging system | |
| CN102826319A (en) | Stock yard | |
| CN102864301B (en) | Automatic production line of directly-reduced ferronickel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190726 Effective date of abandoning: 20240213 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190726 Effective date of abandoning: 20240213 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |