CN106944608A - Control the device and operating method of molten steel Large Inclusions - Google Patents
Control the device and operating method of molten steel Large Inclusions Download PDFInfo
- Publication number
- CN106944608A CN106944608A CN201710224548.8A CN201710224548A CN106944608A CN 106944608 A CN106944608 A CN 106944608A CN 201710224548 A CN201710224548 A CN 201710224548A CN 106944608 A CN106944608 A CN 106944608A
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- China
- Prior art keywords
- air deflector
- ladle
- molten steel
- tundish
- large inclusions
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/44—Consumable closure means, i.e. closure means being used only once
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/08—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like for bottom pouring
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
The device and operating method of control molten steel Large Inclusions of the present invention, are related to aid and its application method in a kind of iron and steel metallurgical industry, are specially the operating method that can control the device of molten steel Large Inclusions, and its device.The device of molten steel Large Inclusions, including ladle, tundish, excessive slag chute and excessive slag ladle are controlled, excessive slag chute is arranged at tundish side, and ladle is arranged at the top of tundish, and excessive slag ladle is placed in excessive slag chute head piece bottom；It is characterized in that being provided with air deflector on barricade between tundish and excessive slag chute；Air deflector of the present invention is the tubular structure for one section of closing being made up of steel plate；The inwall of air deflector is provided with flame retardant coating；The top of air deflector opens up round deflector entrance；The long nozzle of ladle bottom of the present invention is inserted into progress row's stuffing sand in air deflector entrance.
Description
Technical field
The device and operating method of control molten steel Large Inclusions of the present invention, are related to a kind of iron and steel metallurgical industry
In aid and its operating method, be specially that can control the device of molten steel Large Inclusions, and its device operation
Method.
Background technology
With the development of society, every profession and trade is more and more to the demand of high-quality steel, and the exploitation of high-quality steel grade is increasingly
Paid attention to by iron and steel enterprise.The performance of field trash severe exacerbation steel in steel, the size of field trash is bigger to be made to steel
It is bigger with performance hazards.Although steel Large Inclusions quantity is few, performance of the minimal amount of Large Inclusions to steel
Have fatefulue influence.Therefore, high-quality steel requires that the cleanliness factor of molten steel is as high as possible, and large-scale be mingled with is removed as much as possible
Thing.In smelting process, in order to prevent molten steel entry nozzle brick cup, need to add to pocket block position before converter tapping and draw
Quicksand.Ladle is opened when pouring, and is opened slide plate and is released stuffing sand, then molten steel flows out therewith.The particle diameter of stuffing sand is generally hundreds of
Even greater than 1 millimeter of micron.During opening and pouring, if stuffing sand enters tundish with molten steel, do not remove in time
Stuffing sand, which is rested on, will form Large Inclusions in molten steel, serious harm quality of molten steel.Therefore, stuffing sand is the large-scale folder of molten steel
One important sources of debris, it should avoid stuffing sand to enter tundish as far as possible.
Most of iron and steel enterprises do not make specially treated when ladle is opened and poured to stuffing sand.Ladle is opened when pouring, and opens slide plate
Afterwards, stuffing sand flows directly into tundish.This mode causes molten steel Large Inclusions more, and quality of molten steel is by serious shadow
Ring.A small number of iron and steel enterprises notice harm of the stuffing sand to high-quality steel grade, and being opened in ladle will be drawn the initial stage of pouring by manual type
Quicksand connects away.Artificial treatment stuffing sand relies primarily on operating personnel's hand-held container, and slide plate stops the several seconds again after opening in tapping hole
Removed, ladle starts cast.This mode is due to needing artificial operation, and the requirement to operator is higher.Due to load
Heart molten steel is discharged, and container residence time is very short, still has many stuffing sands to enter in molten steel.Meanwhile, artificial operation is also
There is potential safety hazard, control is not appropriate, molten steel impact easilys lead to reception stuffing sand container and tumbled, and operator is made safely
Enter tundish into threat, and with a large amount of stuffing sands, form Large Inclusions.It can be seen that, the artificial mode for receiving stuffing sand
Also not very rationally, its acceptance rate is low, and security is poor, is still also easy to produce Large Inclusions.
For it is above-mentioned the problems of in the prior art, a kind of new control molten steel Large Inclusions of research and design
Device and the device operating method so that it is the problems of in the prior art very necessary to overcome.
The content of the invention
In view of it is above-mentioned the problems of in the prior art, the purpose of the present invention is a kind of new control steel of research and design
The device of liquid Large Inclusions and the operating method of the device.To solve problems of the prior art：1st, it is artificial
Operation, the technical requirements to operator are higher；2nd, artificial operation, to the operating time can not accurate perception, easily leave residual
Remaining stuffing sand；3rd, there is potential safety hazard, easily cause actual bodily harm to workman in artificial operation；4th, artificial operation, time-consuming, work
Make the low problem of efficiency.
What the technical solution of the present invention was realized in：
The device of control molten steel Large Inclusions of the present invention, including ladle, tundish, excessive slag chute and excessive slag
Tank, excessive slag chute is arranged at tundish side, and ladle is arranged at the top of tundish, and excessive slag ladle is placed in excessive slag chute head piece bottom；Its
It is characterised by being provided with air deflector on the barricade between tundish and excessive slag chute；
Air deflector of the present invention is the tubular structure for one section of closing being made up of steel plate；Set in the inwall of air deflector
There is flame retardant coating；The top of air deflector opens up round deflector entrance；
The long nozzle of ladle bottom of the present invention is inserted into progress row's stuffing sand in air deflector entrance.
Flame retardant coating of the present invention is the refractory material of 30-50mm thickness.
Diameter big 30-50mm of the diameter of air deflector entrance of the present invention than long nozzle, it is ensured that long nozzle can be suitable
Profit is inserted into air deflector.
The connected mode of air deflector and barricade of the present invention is fixed connection and socket connection；
Fixed connection of the present invention is that air deflector is closed into one end to fix loaded on barricade top, air deflector openend
It is placed in excessive slag chute side；
Socket connection of the present invention is that the bottom for closing one end in air deflector sets groove, and groove is installed in into gear
On wall, air deflector openend is placed in excessive slag chute side；
The downward-sloping 10-20 degree in air deflector openend of the present invention, it is ensured that stuffing sand smoothly flows out.
Groove height of the present invention is 40-80mm, thickness big 15-30mm of the width than barricade, it is ensured that barricade can
Smoothly it is embedded into groove and is fixed.
A kind of operating method for the device for controlling molten steel Large Inclusions, it is characterised in that described operating method is：
A, ladle moved into teeming stage, rotated ladle to just to air deflector entry position by ladle whirligig
Top, and long nozzle is installed by mechanical arm；
B, by ladle whirligig ladle is rotated to long nozzle just to air deflector entry position, then control cast is flat
The lift of platform moves down ladle, make long nozzle lower end be inserted into air deflector enter it is intraoral；
C, opening slide plate stuffing sand are from long nozzle is flowed into air deflector, and the slide plate opening time is 10-20s；
D, closing slide plate, control the lift of teeming stage to propose the long nozzle of ladle by air deflector entrance, and rapidly
Ladle is rotated and cast position is dropped to, starts cast.
It is an advantage of the invention that it will be apparent that being mainly manifested in：
1st, performance safety is reliable：
(1), the present invention is in installation process, and air deflector is fixed on gear by fixed connection or socket connection mode
On wall, it will not be tumbled during reception stuffing sand, safety and stability；
(2), the present invention need not be grasped by hand in tundish using being preceding installed on tundish during reception stuffing sand
Make, therefore need not worry about molten steel splash threat personal safety；
2nd, stuffing sand remnants are few, and molten steel cleanness is high：
(1), present invention control stuffing sand turns into molten steel Large Inclusions device in addition to entrance and exit, and other positions are equal
It is closed structure, therefore during stuffing sand is received, stuffing sand may not flow into tundish substantially, improve the reception of stuffing sand
Rate；
(2), stuffing sand efflux time can be effectively ensured by controlling steel ladle slide board opening and closing in the present invention, it is ensured that draw sulphur sand and use up
It may drain.So it is possible to prevente effectively from stuffing sand turns into molten steel Large Inclusions, the quality of steel is significantly improved；
3rd, the present invention is simple in construction, easy to operate, it is easy to promote：
(1), air deflector is the tubulose closed vessel being formed from steel in the present invention, embeds flame retardant coating, simple in construction, is made non-
Chang Rongyi.Meanwhile, according to enterprise practical, different tundish can make corresponding air deflector, it is easy to which popularization is implanted in difference
Tundish on use；
(2), during air deflector is installed, it is only necessary to which air deflector is fixed on barricade, outlet bottom is placed in tundish
Overflow on slag chute, installation and removal are very convenient, and air deflector may be reused；
(3), before tundish use, air deflector is had been installed within tundish, therefore is no longer needed in operation
Staff's manual operations, before and after stuffing sand is received, need to only control the existing rotation of teeming stage and lowering or hoisting gear to control ladle
.
4th, it is with low cost, it is good in economic efficiency：
(1) because control device is simple in construction, therefore cost is very low, it is not necessary to which big investment i.e. can be in enterprise's promotion and implementation
Using；
(2) because of the application of control device, steel products quality, which has, to be obviously improved, and the lifting of Competitive Products can band
The up-regulation of movable property product selling price, produces significant economic benefit；
It is excellent that the present invention there are structure novelty, simple processing, esy to use, safe and reliable, molten steel Large Inclusions to lack etc.
Point, its high-volume, which puts goods on the market, will produce positive social benefit and significant economic benefit.
Brief description of the drawings
The present invention has 3 width accompanying drawings, wherein：
Accompanying drawing 1 receives structural representation during stuffing sand for the present invention；
Accompanying drawing 2 is casting condition figure of the present invention；
Accompanying drawing 3 is top view of the present invention.
In figure：1st, ladle 2, tundish 3, barricade 4, groove 5, long nozzle 6, air deflector entrance 7, air deflector
8th, air deflector outlet 9, the slag chute 10 that overflows, excessive slag ladle.
Embodiment
Embodiment 1
The present invention specific embodiment as shown in drawings, control molten steel Large Inclusions device, including ladle 1, in
Between bag 2, overflow slag chute 9 and excessive slag ladle 10, the slag chute 9 that overflows is arranged at the side of tundish 2, and ladle 1 is arranged at the top of tundish 2, overflows
Slag ladle 10 is placed in the excessive head piece bottom of slag chute 9；It is characterized in that being provided with water conservancy diversion on barricade 3 between tundish 2 and excessive slag chute 9
Device 7；
Air deflector 7 is the tubular structure for one section of closing being made up of steel plate；The inwall of air deflector 7 is provided with flame retardant coating；
The top of air deflector 7 opens up round deflector entrance 6；
The long nozzle 5 of the bottom of ladle 1 is inserted into progress row's stuffing sand in air deflector entrance 6.
Flame retardant coating is the refractory material of 40mm thickness.
Diameter big 40mm of the diameter of air deflector entrance 6 than long nozzle 5.
Air deflector 7 and the fixed connection of barricade 3, close one end by air deflector 7 and fix loaded on the top of barricade 3, air deflector 7 is opened
Mouth end is placed in the excessive side of slag chute 9；Downward-sloping 15 degree of the openend of air deflector 7.
The operating method for controlling the device of molten steel Large Inclusions is：
A, ladle moved into teeming stage, rotated ladle to the position just to air deflector entrance by ladle whirligig
Put, and long nozzle 5 is installed by mechanical arm；
B, ladle is threaded to just to air deflector entry position by long nozzle by ladle whirligig, then controls teeming stage
Lift ladle 1 is moved down, the lower end of long nozzle 5 is inserted into air deflector entrance 6；
C, opening slide plate stuffing sand are from long nozzle 5 is flowed into air deflector, and the slide plate opening time is 15s；
D, closing slide plate, control the lift of teeming stage to propose the long nozzle 5 of ladle 1 by air deflector entrance 6, and fast
Ladle 1 is rotated and drops to cast position by speed, starts cast.
Embodiment 2
The present invention specific embodiment as shown in drawings, control molten steel Large Inclusions device, including ladle 1, in
Between bag 2, overflow slag chute 9 and excessive slag ladle 10, the slag chute 9 that overflows is arranged at the side of tundish 2, and ladle 1 is arranged at the top of tundish 2, overflows
Slag ladle 10 is placed in the excessive head piece bottom of slag chute 9；It is characterized in that being provided with water conservancy diversion on barricade 3 between tundish 2 and excessive slag chute 9
Device 7；
Air deflector 7 is the tubular structure for one section of closing being made up of steel plate；The inwall of air deflector 7 is provided with flame retardant coating；
The top of air deflector 7 opens up round deflector entrance 6；
The long nozzle 5 of the bottom of ladle 1 is inserted into progress row's stuffing sand in air deflector entrance 6.
Flame retardant coating is the refractory material of 40mm thickness.
Diameter big 40mm of the diameter of air deflector entrance 6 than long nozzle 5.
Air deflector 7 and the socket connection of barricade 3；The bottom of the closing of air deflector 7 one end sets groove 4, and groove 4 is installed in
On barricade 3, the openend of air deflector 7 is placed in the excessive side of slag chute 9；Downward-sloping 15 degree of the openend of air deflector 7.
The height of groove 4 is 60mm, thickness big 20mm of the width than barricade 3.
The operating method for controlling the device of molten steel Large Inclusions is：
A, ladle moved into teeming stage, rotated ladle to just to air deflector entry position by ladle whirligig
Top, and long nozzle 5 is installed by mechanical arm；
B, ladle is threaded to just to air deflector entry position by long nozzle by ladle whirligig, then controls teeming stage
Lift ladle 1 is moved down, the lower end of long nozzle 5 is inserted into air deflector entrance 6；
C, opening slide plate stuffing sand are from long nozzle 5 is flowed into air deflector, and the slide plate opening time is 20s；
D, closing slide plate, control the lift of teeming stage to propose the long nozzle 5 of ladle 1 by air deflector entrance 6, and fast
Ladle 1 is rotated and drops to cast position by speed, starts cast.
The above, is only the preferably embodiment of the present invention, but protection scope of the present invention is not limited to
This, all those familiar with the art are in technical scope disclosed by the invention, technique according to the invention scheme
And its design of the present invention is subject to equivalent or changed to be included within the scope of the present invention.
Claims (6)
1. a kind of device of control molten steel Large Inclusions, including ladle (1), tundish (2), excessive slag chute (9) and excessive slag ladle
(10) slag chute (9) that, overflows is arranged at tundish (2) side, and ladle (1) is arranged at the top of tundish (2), and the slag ladle (10) that overflows is placed in
Excessive slag chute (9) head piece bottom；It is characterized in that being provided with air deflector on barricade (3) between tundish (2) and excessive slag chute (9)
(7)；
Described air deflector (7) is the tubular structure for one section of closing being made up of steel plate；It is provided with the inwall of air deflector (7) resistance to
Fire bed；The top of air deflector (7) opens up round deflector entrance (6)；
The long nozzle (5) of ladle (1) bottom, which is inserted into air deflector entrance (6), carries out row's stuffing sand.
2. the device of control molten steel Large Inclusions according to claim 1, it is characterised in that described flame retardant coating is
The refractory material of 30-50mm thickness.
3. the device of control molten steel Large Inclusions according to claim 1, it is characterised in that described air deflector enters
Diameter big 30-50mm of the diameter than long nozzle (5) of mouth (6).
4. the device of control molten steel Large Inclusions according to claim 1, it is characterised in that described air deflector (7)
Connected mode with barricade (3) is fixed connection and socket connection；
Described fixed connection is to fix air deflector (7) closing one end to be loaded on barricade (3) top, air deflector (7) openend
It is placed in excessive slag chute (9) side；
Described socket connection is that the bottom for closing one end in air deflector (7) sets groove (4), and groove (4) is installed in into gear
On wall (3), air deflector (7) openend is placed in excessive slag chute (9) side；
The described downward-sloping 10-20 degree in air deflector (7) openend.
5. the device of control molten steel Large Inclusions according to claim 4, it is characterised in that described groove (4) is high
Spend for 40-80mm, thickness big 15-30mm of the width than barricade (3).
6. the operating method of the device of control molten steel Large Inclusions according to claim 1, it is characterised in that described
Operating method be：
A, ladle moved into teeming stage, rotated ladle to just to the upper of air deflector entry position by ladle whirligig
Side, and long nozzle (5) is installed by mechanical arm；
B, by ladle whirligig ladle is rotated to long nozzle just to air deflector entry position, then control teeming stage
Lift moves down ladle (1), long nozzle (5) lower end is inserted into air deflector entrance (6)；
C, opening slide plate stuffing sand are from long nozzle (5) is flowed into air deflector, and the slide plate opening time is 10-20s；
D, closing slide plate, control the lift of teeming stage to propose the long nozzle (5) of ladle (1) by air deflector entrance (6), and
It is rapid that ladle (1) is rotated and cast position is dropped to, start cast.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710224548.8A CN106944608B (en) | 2017-04-07 | 2017-04-07 | Control the device and operating method of molten steel Large Inclusions |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710224548.8A CN106944608B (en) | 2017-04-07 | 2017-04-07 | Control the device and operating method of molten steel Large Inclusions |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106944608A true CN106944608A (en) | 2017-07-14 |
| CN106944608B CN106944608B (en) | 2019-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710224548.8A Active CN106944608B (en) | 2017-04-07 | 2017-04-07 | Control the device and operating method of molten steel Large Inclusions |
Country Status (1)
| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014167A (en) * | 2018-08-27 | 2018-12-18 | 承德建龙特殊钢有限公司 | The outer guiding method of ladle draining sand and ladle open pouring technique |
| CN111644581A (en) * | 2020-06-15 | 2020-09-11 | 中冶南方连铸技术工程有限责任公司 | Drainage sand removing method during continuous casting ladle casting |
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| JPH03207562A (en) * | 1990-01-10 | 1991-09-10 | Kawasaki Steel Corp | Method for removing ladle sand at the time of starting pouring |
| JPH08323464A (en) * | 1995-03-28 | 1996-12-10 | Sumitomo Metal Ind Ltd | Method and device for removing ladle sand in starting pouring of molten is steel |
| CN2805981Y (en) * | 2005-07-21 | 2006-08-16 | 江阴兴澄特种钢铁有限公司 | Apparatus for ejecting drainage sand for continuous casting large ladle gating |
| CN201720406U (en) * | 2010-06-22 | 2011-01-26 | 浙江青山钢铁有限公司 | Continuous casting tundish stuffing sand separating device |
| CN203197241U (en) * | 2013-04-18 | 2013-09-18 | 南京钢铁股份有限公司 | Large-ladle drainage sand eliminating device |
| CN105033236A (en) * | 2015-08-25 | 2015-11-11 | 首钢京唐钢铁联合有限责任公司 | Ladle filler sand discharge device and continuous casting ladle casting starting method |
| CN204770645U (en) * | 2015-06-26 | 2015-11-18 | 鞍钢股份有限公司 | Ladle drainage sand clearing device |
| CN204975312U (en) * | 2015-07-14 | 2016-01-20 | 河北钢铁股份有限公司邯郸分公司 | Ladle drainage sand clearing device |
| CN105921734A (en) * | 2016-05-13 | 2016-09-07 | 鞍山市华兴冶金炉料有限公司 | Method and device for keeping molten steel clean in casting of continuous casting ladle |
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2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03207562A (en) * | 1990-01-10 | 1991-09-10 | Kawasaki Steel Corp | Method for removing ladle sand at the time of starting pouring |
| JPH08323464A (en) * | 1995-03-28 | 1996-12-10 | Sumitomo Metal Ind Ltd | Method and device for removing ladle sand in starting pouring of molten is steel |
| CN2805981Y (en) * | 2005-07-21 | 2006-08-16 | 江阴兴澄特种钢铁有限公司 | Apparatus for ejecting drainage sand for continuous casting large ladle gating |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109014167A (en) * | 2018-08-27 | 2018-12-18 | 承德建龙特殊钢有限公司 | The outer guiding method of ladle draining sand and ladle open pouring technique |
| CN111644581A (en) * | 2020-06-15 | 2020-09-11 | 中冶南方连铸技术工程有限责任公司 | Drainage sand removing method during continuous casting ladle casting |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106944608B (en) | 2019-07-30 |
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Inventor after: Deng Zhiyin Inventor after: Chi Yunguang Inventor after: Zhu Miaoyong Inventor after: Yang Fenggong Inventor before: Deng Zhiyin Inventor before: Chi Yunguang Inventor before: Zhu Miaoyong Inventor before: Yang Fenggong |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |