CN206143225U - High temperature liquid molten slag slag runner flashboard control system - Google Patents
High temperature liquid molten slag slag runner flashboard control system Download PDFInfo
- Publication number
- CN206143225U CN206143225U CN201621126284.XU CN201621126284U CN206143225U CN 206143225 U CN206143225 U CN 206143225U CN 201621126284 U CN201621126284 U CN 201621126284U CN 206143225 U CN206143225 U CN 206143225U
- Authority
- CN
- China
- Prior art keywords
- slag
- flashboard
- fork
- slag runner
- control system
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
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- Blast Furnaces (AREA)
Abstract
The utility model provides a high temperature liquid molten slag slag runner flashboard control system, its first flashboard (3) upper end with setting up in main slag runner is connected, and hydraulic pressure cylinder (40) drive flashboard connecting rod (42) and reciprocate, flashboard connecting rod (42) lower extreme is first flashboard (3) even, the even one end of second pendulum rod (43) of hinge is passed through at the middle part of flashboard connecting rod (42), and the below of second pendulum rod (43) sets up second fulcrum (45), and second pendulum rod (43) other end links the lantern ring (431), counter weight connecting rod (47) can reciprocate in the lantern ring (431), and counter weight connecting rod (47) upper end is electromagnetic induction switch (46) even, and the lower extreme is counter weight (48) even, and the middle part is fixed with and keeps off ring (49). Through the utility model discloses, when emergency or drainage end appearing midway, can mention the flashboard immediately, and, also can mention the flashboard automatically under the condition of outage to high temperature slag overflow phenomenon can be avoided, the emergence of accident is avoided.
Description
Technical field
This utility model is related to high-temperature liquid state slag treatment field, more particularly to a kind of slag runner flashboard control system.
Background technology
Blast furnace liquid slag is a kind of side-product that blast furnace in metallurgical industry ironmaking is produced, and blast furnace liquid slag not only has very
High temperature (1400-1600 DEG C), its average heat content is about 1600～1800MJ/t, is about as much as the standard of 55～61kg
Coal, belongs to the residual heat resources of high-quality；And in blast furnace cinder also have substantial amounts of mineral.In order to reclaim this part of blast furnace slag
Mineral in residual heat resources and slag, the high temperature furnace slag of liquid is typically incorporated in residual neat recovering system process simultaneously in industry
Improve the performance of its blast furnace slag, can also output mineral wool, cinder microcrystalline glass etc. so while blast-furnace cement sensible heat is made full use of
Construction material with certain values.
For the same slag notch of blast furnace, discharge blast furnace cinder and be by the process that blast furnace cinder introduces processing equipment
It is intermittent, so needing quickly blast furnace cinder to be incorporated in time processing equipment if blast furnace cinder is discharged.
Traditional high furnace slag discharge is blast furnace cinder is directly over into main slag runner to flow freely to granulating pit carrying out cooling down
Process, recycle after then the slag thing to being formed is ground.
Existing processing mode is that blast furnace cinder is processed using dry granulation methods.This dry granulation methods are
Secondary slag runner is set beside traditional main slag runner, from main slag runner stream to granulating pit, another part is from secondary slag runner for a part of blast-furnace slag
Flow out, the blast furnace cinder to flowing out from secondary slag runner carries out granulated processed using dry granulation methods.In order to obtain granulation effect, should
Flashboard is respectively provided with main slag runner with secondary slag runner in method, is adjusted by flashboard and is entered secondary slag runner slag flow.
In this dry granulation methods, because blast furnace cinder has corrosivity, slag runner exists and can not keep away with the surface of flashboard
The gap exempted from, the blast furnace slag of slag runner and gate panel surface gap location draw after slag terminates in the short time cooling and with flashboard adhesion, cause
Flashboard is set to be difficult to lift, meanwhile, the flashboard after adhesion slag volume itself can increase, and need operator to carry out labor cleaning, take
When it is laborious.
When slag is introduced secondary slag runner from main slag runner, if there is blast furnace cinder to flow increase suddenly, secondary slag runner row in midway
Slag has some setbacks, and at the end of certain equipment being related in technological process runs the emergency case such as abnormal or drain, needs to carry immediately
Play the flashboard in main slag runner, if flashboard fails to lift the accumulation for easily causing liquid blast furnace in time, high-temperature liquid furnace slag meeting
Overflow, can destroy slag runner and peripheral equipment, or even blast-furnace man people is damaged.It is larger yet with flashboard sole mass,
Can not be lifted by operator merely under powering-off state, not only can easily be caused production accident, be jeopardized operator
The personal safety of member.
Utility model content
The purpose of this utility model is the problem for presently, there are, there is provided a kind of high-temperature liquid state slag slag runner flashboard control
System, it not only immediately can automatically lift flashboard after a loss of power during blast furnace liquid slag treatment, and draw slag
Also flashboard can automatically be lifted after end so that the blast furnace liquid slag in slag runner can be drained in time by slag runner, it is to avoid
The generation of accident, it is not required that operator near flashboard, so as to ensure that the personal safety of operator.
This utility model is achieved through the following technical solutions：
This utility model provides a kind of high-temperature liquid state slag slag runner flashboard control system, itself and the be arranged in main slag runner
One flashboard upper end connects, and secondary slag runner is drawn on the side of the main slag runner, and this utility model includes：
Hydraulic cylinder, shutter, the second fork；Second fulcrum；Electromagnetic induction switch, counterweight connecting rod, counterweight and baffle ring；
Hydraulic cylinder drives shutter to move up and down；The lower end of shutter connects the first flashboard；In shutter
Between be partly connected through the hinge one end of the second fork, the lower section of the second fork arranges the second fulcrum, and the second fork is another
End is connected with the collar；Counterweight connecting rod can be moved up and down in the collar, the upper end connection electromagnetic induction switch of counterweight connecting rod, under
End connection counterweight, mid portion is fixed with baffle ring；
The length of the second fulcrum to the fork between counterweight connecting rod is L3, the second fulcrum is to the fork between shutter
Length is L2；It is L that first flashboard is located at the length of the collar to the bar between baffle ring of the second fork when in main slag runner4；Second fork
The length of the hinged place and shutter between to the first flashboard upper surface is L1；The height of the first flashboard is H0；Weight mass
m1, flashboard quality m2, the vertical dimension of the second fulcrum to counterweight connecting rod is L5, the vertical dimension of the second fulcrum to shutter is
L6；Then above parameter meets following relational expression：
L4≥L1*L3/L2
2H0>L1>H0
m1*L5>m2*L6
It is highly preferred that the high-temperature liquid state slag slag runner flashboard control system also includes：
First fork and the first fulcrum；
The lower section of first fork arranges the first fulcrum, and one end of the first fork is connected with the push rod of hydraulic cylinder, separately
One end is connected by hinge with the upper end of the shutter that can be moved up and down.
It is highly preferred that the section of the main slag runner and the first flashboard is all provided with being set to U-shaped, and two sides outwards roll respectively
Tiltedly.
It is highly preferred that after system cut-off, magnetic induction switch disconnects, counterweight drives counterweight connecting rod to move down, and reconnects when matching somebody with somebody
Baffle ring on bar is touched and is fixed on after the collar of the second swing link end part, and counterweight self gravitation produces downward power and acts on second
The left side of fork, by the effect of the second fulcrum of the second fork bottom, active force upwards is formed simultaneously in the second fork right-hand member
Shutter is passed to by hinge to move up, the first flashboard is lifted.
It is highly preferred that described high-temperature liquid state slag slag runner flashboard control system also includes：
Programmable controller PLC, its signal input part is connected with supervisory control desk, for receiving the task that supervisory control desk sends
Signal, signal output part is connected with hydraulic cylinder, when the task signal for receiving is that slag is drained into secondary slag runner from main slag runner
When, its triggering hydraulic cylinder promotes the right-hand member of the first fork to move upwards；At the end of the task signal for receiving is drain, its
Triggering hydraulic cylinder pulls the right-hand member of the first fork to move downward.
It is highly preferred that the main slag runner installs respectively the base of polylith cover plate, cover plate both sides and slag runner additional with the top of secondary slag runner
There is hot-blast spray nozzle between plinth.
It is highly preferred that there is hangers the cover plate both sides.
It is highly preferred that in the angle a of setting between the secondary slag runner and main slag runner.
It is highly preferred that according to the setting gradient from height to low dip at the more main slag runner depth of the secondary slag runner and extraction.
It is highly preferred that gradient i is 3 °～10 °.
This utility model is can be seen that by above-mentioned the technical solution of the utility model to have the following technical effect that：
By this utility model, there is emergency case or slag entered secondary slag runner from main slag runner drain in midway to terminate
When, flashboard can immediately be lifted so that the blast furnace liquid slag in slag runner can be drained in time by main slag runner, it is to avoid slag
Between ditch and flashboard gap location have blast furnace liquid slag rapidly cooling and flashboard adhesion and cause accident to occur；
And, in the event of a power failure, also flashboard can be lifted automatically such that it is able to avoid high temperature furnace slag overflow phenomena and
Accidents caused generation.
Flashboard does not need operator near flashboard during lifting, so as to ensure that the personal safety of operator.
This utility model simple structure, it is easy to operate.
Description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of control device in this utility model；
In accompanying drawing：
Main slag runner 1, secondary slag runner 2, the first flashboard 3, the second flashboard 5, high-temperature liquid state slag slag runner flashboard control system 4；Liquid
Air cylinder 40, the first fork 41, shutter 42, the second fork 43；First fulcrum 44, the second fulcrum 45；Electromagnetic induction switch
46th, counterweight connecting rod 47, counterweight 48, baffle ring 49；The collar 431.
Specific embodiment
In order that those skilled in the art more fully understands the technical scheme of the application, below with reference to accompanying drawing to this reality
It is described in further details with new.
The orientation such as upper and lower, left and right, front and rear in present specification term is based on position relationship shown in the drawings
Set up.Accompanying drawing is different, then corresponding position relationship is also possible to change therewith, therefore can not be interpreted as to protecting model with this
The restriction enclosed.
In description of the present utility model, it is to be understood that the implication of " multiple " refers to two or more, removes
It is non-separately to have clearly specific restriction.
In this utility model, belonging to " installation ", " connected ", " connecting ", " connection ", " fixation " etc. should be interpreted broadly, example
Such as, can be fixedly connected, or be detachably connected, or be integrally connected, or be mechanically connected, also may be used
To be electrical connection or can be in communication with each other, or be directly connected to, or be indirectly connected with by intermediary, Ke Yishi
The interaction relationship of UNICOM, or two components and parts inside two components and parts.For the ordinary skill people of this area
For member, concrete meaning of the above-mentioned term in this utility model can be as the case may be understood.
Embodiment one：
This utility model provides a kind of high-temperature liquid state slag slag runner flashboard control system, is applied to high-temperature liquid state slag slag runner
On flashboard, as indicated with 1, main slag runner 1 therein and secondary slag runner 2 are used to for blast furnace slag to introduce waste heat recovery apparatus its position view
In, the first flashboard 3 is provided with main slag runner 1, it is provided with the second flashboard 5, high-temperature liquid state of the present utility model in secondary slag runner 2
Slag slag runner flashboard control system 4 is connected with the upper end of the first flashboard 3.
Secondary slag runner 2 in this utility model is drawn from main slag runner 1, and in the angle a of setting, the folder between main slag runner 1
The size of angle a determines according to on-site actual situations.According to the setting gradient from high to low at the more main depth of slag runner 1 of secondary slag runner 2 and extraction
Incline, gradient i can be 3 °～10 °, carry out slag and smoothly can enter secondary slag runner by stream to facilitate.
For convenience the first flashboard 3 and the second flashboard 5 are extracted and inserted from slag runner, above-mentioned main slag runner 1, secondary slag runner 2, the
The section of one flashboard 3 and the second flashboard 5 is all provided with being set to U-shaped, and two sides incline laterally respectively.
Main slag runner 1 to be installed additional respectively with the top of secondary slag runner 2 and have two heat extractions between the basis of polylith cover plate, cover plate both sides and slag runner
There is hangers wind nozzle, cover plate both sides to facilitate the movement of cover plate.
This utility model provides a kind of high-temperature liquid state slag slag runner flashboard control system 4 to be included：Hydraulic cylinder 40, first is put
Bar 41, shutter 42, the second fork 43；First fulcrum 44, the second fulcrum 45；Electromagnetic induction switch 46, counterweight connecting rod 47, match somebody with somebody
Weigh 48, baffle ring 49.
The lower section of the first fork 41 arranges the first fulcrum 44, one end of the first fork 41 and the push rod phase of hydraulic cylinder 40
Even, the other end is connected by hinge with the upper end of the shutter 42 that can be moved up and down；The lower end connection lock of shutter 42
Plate 3；The mid portion of shutter 42 is connected through the hinge one end of the second fork 43, and the lower section of the second fork 43 arranges second
Fulcrum 45, and the other end of the second fork 43 is connected with the collar 431；Counterweight connecting rod 47 can be moved up and down in the collar 431,
The upper end connection electromagnetic induction switch 46 of counterweight connecting rod 47, lower end connection counterweight 48, mid portion is fixed with baffle ring 49.
If the length of the second fulcrum 45 to the fork between counterweight connecting rod 47 is L3, the second fulcrum 45 to shutter 42 it
Between fork length be L2；First flashboard 3 is located at the collar 431 of the second fork 43 when in main slag runner to the bar between baffle ring 49
Length be L4；The length of the hinged place between the second fork 43 and shutter 42 to the upper surface of the first flashboard 3 is L1；First
The height of flashboard 3 is H0；Weight mass m1, flashboard quality m2, the vertical dimension of the second fulcrum 45 to counterweight connecting rod 47 is L5, the
Two fulcrums 45 to the vertical dimension of shutter 42 is L6；
To guarantee smoothly to lift on the first flashboard 3, then above parameter meets claimed below：
L4≥L1*L3/L2
2H0>L1>H0
m1*L5>m2*L6
In order to further realize Automated condtrol, PLC (Programmable Logic Controller), its letter are also included in above-described embodiment
Number input is connected with supervisory control desk, for receiving the task signal that supervisory control desk sends, signal output part and hydraulic cylinder 40
It is connected, when the task signal for receiving is that slag is drained into secondary slag runner 2 from main slag runner 1, its triggering hydraulic cylinder 40 is promoted
The right-hand member of the first fork 41 is moved upwards；At the end of the task signal for receiving is drain, its triggering hydraulic cylinder 40 is pulled
The right-hand member of the first fork 41 is moved downward.
The operation principle of embodiment one：
Under normal circumstances, the first flashboard 3 in main slag runner 1 is in open mode, and the second flashboard 5 in secondary slag runner 2 is also located
In open mode.
When slag is drained into secondary slag runner 2 from main slag runner 1, the slag that comes for blocking main slag runner 1 is now needed, then start hydraulic pressure
Cylinder 40, promotes the right-hand member of the first fork 41 to move upwards by the push rod of hydraulic cylinder 40, and the right-hand member of the first fork 41 leads to power
The left end that the first fulcrum 44 is delivered to the first fork 41 is crossed, and downward active force is converted in hinged place and pass to shutter
42, in the presence of the downward active force of the here of shutter 42 and the self gravitation of the first flashboard 3, move down rapidly, with U-shaped slag runner coupling
Sealing is closed, that blocks main slag runner 1 carrys out slag so that carry out the secondary slag runner 2 of slag flow direction, final slag in future introduces waste heat recovery processing equipment.
At the end of drain, need to lift the first flashboard 3 immediately, now hydraulic cylinder 40 pulls the first fork by push rod
41 right-hand member is moved downward, and power is delivered to the right-hand member of the first fork 41 left end of the first fork 41 by the first fulcrum 44, and
Active force upwards is converted in hinged place pass to shutter 42, the effect of the here of shutter 42 active force upwards
Under, rapid upper shifting lifts on the first flashboard 3, in case subsequently carrying out slag also flows to main slag runner 1.
After system cut-off, magnetic induction switch 46 disconnects, and counterweight 48 declines rapidly, and drives counterweight connecting rod 47 to moving down
It is dynamic, after the baffle ring 49 on counterweight connecting rod 47 touches the collar for being fixed on the end of the second fork 43, then because counterweight 48 is from heavy sensation of the body
Power produces downward power and acts on the left side of the second fork 43, by the effect of the second fulcrum 45 of the bottom of the second fork 43,
Form active force upwards and shutter 42 is passed to by hinge in the right-hand member of the second fork 43 and move up, by the first flashboard
3 quickly lift such that it is able to avoid carrying out the overflow phenomena of slag.
Above-described embodiment one is the first fork 41 and lock that the first fulcrum is arranged by bottom with the push rod of hydraulic cylinder 40
Plate connecting rod 42 is hinged, and realizes the lifting and decline of the first flashboard 3.But this utility model is not limited thereto, in this utility model
In embodiment two, this part-structure can also be：The push rod of hydraulic cylinder 40 is directly hinged with shutter 42, shutter 42
Connect with the first flashboard 3.Directly being hinged with shutter 42 by the push rod of hydraulic cylinder 40 can be directly realized by the first flashboard 3
Lifting and decline.
Although this utility model is disclosed as above with preferred embodiment, embodiment is not for limiting this utility model
's.In the spirit and scope without departing from this utility model, any equivalence changes done or retouching also belong to this practicality new
The protection domain of type.Therefore the content that protection domain of the present utility model should be defined with claims hereof is as mark
It is accurate.
Claims (10)
1. a kind of high-temperature liquid state slag slag runner flashboard control system, it is characterised in that the high-temperature liquid state slag slag runner flashboard control
System processed is connected with the first flashboard (3) upper end being arranged in main slag runner (1), and secondary slag runner is drawn on the side of the main slag runner (1)
(2), it includes：
Hydraulic cylinder (40), shutter (42), the second fork (43)；Second fulcrum (45)；Electromagnetic induction switch (46), counterweight
Connecting rod (47), counterweight (48) and baffle ring (49)；
Hydraulic cylinder (40) drives shutter (42) to move up and down；The lower end of shutter (42) connects the first flashboard (3)；Lock
The mid portion of plate connecting rod (42) is connected through the hinge one end of the second fork (43), and the lower section of the second fork (43) arranges second
Fulcrum (45), and the other end of the second fork (43) is connected with the collar (431)；Counterweight connecting rod (47) can be in the collar (431)
Inside move up and down, upper end connection electromagnetic induction switch (46) of counterweight connecting rod (47), lower end connection counterweight (48), mid portion is solid
Surely there is baffle ring (49)；
The length of the second fulcrum (45) to the fork between counterweight connecting rod (47) is L3, the second fulcrum (45) to shutter (42)
Between fork length be L2；The collar (431) of the second fork (43) is to baffle ring when first flashboard (3) is in main slag runner
(49) length of the bar between is L4；Hinged place between second fork (43) and shutter (42) is to the first flashboard (3)
The length on surface is L1；The height of the first flashboard (3) is H0；Weight mass m1, flashboard quality m2, the second fulcrum (45) is to counterweight
The vertical dimension of connecting rod (47) is L5, the vertical dimension of the second fulcrum (45) to shutter (42) is L6；Then above parameter meets
Following relational expression：
L4≥L1*L3/L2
2H0>L1>H0
m1*L5>m2*L6。
2. a kind of high-temperature liquid state slag slag runner flashboard control system according to claim 1, it is characterised in that the high temperature
Molten slag slag runner flashboard control system also includes：
First fork (41) and the first fulcrum (44)；
The lower section of first fork (41) arranges the first fulcrum (44), one end and the hydraulic cylinder (40) of the first fork (41)
Push rod is connected, and the other end is connected by hinge with the upper end of the shutter (42) that can be moved up and down.
3. a kind of high-temperature liquid state slag slag runner flashboard control system according to claim 1 and 2, it is characterised in that described
The section of main slag runner (1) and the first flashboard (3) is all provided with being set to U-shaped, and two sides incline laterally respectively.
4. a kind of high-temperature liquid state slag slag runner flashboard control system according to claim 3, it is characterised in that system cut-off
Afterwards, magnetic induction switch (46) disconnects, and counterweight (48) drives counterweight connecting rod (47) to move down, the baffle ring on counterweight connecting rod (47)
(49) touch and be fixed on after the collar (431) of the second fork (43) end, counterweight (48) self gravitation produces downward power and makees
For the left side of the second fork (43), by the effect of second fulcrum (45) of the second fork (43) bottom, in the second fork
(43) right-hand member forms active force upwards and passes to shutter (42) by hinge and moves up, and the first flashboard (3) is carried
Rise.
5. a kind of high-temperature liquid state slag slag runner flashboard control system according to claim 3, it is characterised in that described height
Warm molten slag slag runner flashboard control system also includes：
Programmable controller PLC, its signal input part is connected with supervisory control desk, for receiving the task letter that supervisory control desk sends
Number, signal output part is connected with hydraulic cylinder (40), when the task signal for receiving is that slag is drained into secondary slag from main slag runner
During ditch, its triggering hydraulic cylinder (40) promotes the right-hand member of the first fork (41) to move upwards；When the task signal for receiving is to draw
At the end of stream, its triggering hydraulic cylinder (40) pulls the right-hand member of the first fork (41) to move downward.
6. a kind of high-temperature liquid state slag slag runner flashboard control system according to claim 5, it is characterised in that the main slag
Ditch (1) to be installed additional respectively with the top of secondary slag runner (2) and have hot-blast spray nozzle between the basis of polylith cover plate, cover plate both sides and slag runner.
7. a kind of high-temperature liquid state slag slag runner flashboard control system according to claim 6, it is characterised in that the cover plate
There is hangers both sides.
8. a kind of high-temperature liquid state slag slag runner flashboard control system according to claim 6, it is characterised in that the secondary slag
In the angle a of setting between ditch (2) and main slag runner (1).
9. a kind of high-temperature liquid state slag slag runner flashboard control system according to claim 6, it is characterised in that the secondary slag
According to the setting gradient from height to low dip at more main slag runner (1) depth of ditch (2) and extraction.
10. a kind of high-temperature liquid state slag slag runner flashboard control system according to claim 9, it is characterised in that the slope
Degree i is 3 °～10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621126284.XU CN206143225U (en) | 2016-10-14 | 2016-10-14 | High temperature liquid molten slag slag runner flashboard control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621126284.XU CN206143225U (en) | 2016-10-14 | 2016-10-14 | High temperature liquid molten slag slag runner flashboard control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206143225U true CN206143225U (en) | 2017-05-03 |
Family
ID=58621256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621126284.XU Withdrawn - After Issue CN206143225U (en) | 2016-10-14 | 2016-10-14 | High temperature liquid molten slag slag runner flashboard control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206143225U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106244747A (en) * | 2016-10-14 | 2016-12-21 | 北京立化科技有限公司 | A kind of high-temperature liquid state slag slag runner flashboard control system |
| CN107190111A (en) * | 2017-06-02 | 2017-09-22 | 唐山钢铁集团有限责任公司 | A kind of non-damageable blast furnace slurry conveying conversion equipment |
-
2016
- 2016-10-14 CN CN201621126284.XU patent/CN206143225U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106244747A (en) * | 2016-10-14 | 2016-12-21 | 北京立化科技有限公司 | A kind of high-temperature liquid state slag slag runner flashboard control system |
| CN107190111A (en) * | 2017-06-02 | 2017-09-22 | 唐山钢铁集团有限责任公司 | A kind of non-damageable blast furnace slurry conveying conversion equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170503 Effective date of abandoning: 20180119 |
|
| AV01 | Patent right actively abandoned |