CN106944608B - 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
- CN106944608B CN106944608B CN201710224548.8A CN201710224548A CN106944608B CN 106944608 B CN106944608 B CN 106944608B CN 201710224548 A CN201710224548 A CN 201710224548A CN 106944608 B CN106944608 B CN 106944608B
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- China
- Prior art keywords
- air deflector
- ladle
- molten steel
- tundish
- excessive slag
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Classifications
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- 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, the auxiliary tool and its application method being related in a kind of iron and steel metallurgical industry can specially control the device of molten steel Large Inclusions and its operating method of device.The device of molten steel Large Inclusions is controlled, including ladle, tundish, excessive slag chute and excessive slag ladle, excessive slag chute are set to tundish side, ladle is set to the top of tundish, and excessive slag ladle is placed in excessive slag chute head piece lower part；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 one section of closed tubular structure made of steel plate；The inner wall of air deflector is provided with flame retardant coating；The top of air deflector opens up round deflector entrance；The long nozzle of ladle lower part of the present invention, which is inserted into air deflector entrance, carries out row's stuffing sand.
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 auxiliary tool and its operating method, can specially control the operation of the device and its device of molten steel Large Inclusions
Method.
Background technique
With the development of society, demand of the every profession and trade to high-quality steel is more and more, the exploitation of high-quality steel grade is increasingly
Attention by iron and steel enterprise.The service performance of field trash severe exacerbation steel in steel, the size of field trash is bigger to make steel
It is bigger with performance hazards.Although steel Large Inclusions quantity is few, service performance of the minimal amount of Large Inclusions to steel
Have fatefulue influence.Therefore, high-quality steel requires the cleanliness of molten steel as high as possible, and removal large size as much as possible is mingled with
Object.In smelting process, molten steel entry nozzle brick cup, needs to be added to pocket block position before converter tapping and draw in order to prevent
Quicksand.Ladle is opened when pouring, and is opened slide plate and is released stuffing sand, then molten steel flows out therewith.The partial size of stuffing sand is usually several hundred
Even greater than 1 millimeter of micron.Open pour during, if stuffing sand enters tundish with molten steel, remove not in time
Stuffing sand, which rests on, just will form Large Inclusions in molten steel, seriously endanger quality of molten steel.Therefore, stuffing sand is molten steel large size folder
One important sources of sundries, it should avoid stuffing sand from entering tundish as far as possible.
Most of iron and steel enterprises do not make specially treated to stuffing sand when ladle is opened and poured.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
It rings.A small number of iron and steel enterprises notice harm of the stuffing sand to high-quality steel grade, and opening the initial stage of pouring in ladle will be drawn by manual type
Quicksand connects away.Artificial treatment stuffing sand relies primarily on operator's hand-held container, and slide plate in tapping hole stops the several seconds again after opening
It is removed, ladle starts to be poured.For this mode due to needing manual operation, the requirement to operator is relatively high.Due to load
The discharge of heart molten steel, container residence time is very short, still has many stuffing sands that can enter in molten steel.Meanwhile manual operation is also
There are security risks, and control is not appropriate, and molten steel impact easilys lead to reception stuffing sand container and tumbles, and make safely to operator
Enter tundish at threat, and with a large amount of stuffing sands, forms Large Inclusions.As it can be seen that manually receiving the mode of stuffing sand
Also not very rationally, acceptance rate is low, and safety 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 novel control molten steel Large Inclusions of researching and designing
Device and the device operating method, so that it is very necessary for overcoming the problems of in the prior art.
Summary 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 novel control steel of researching and designing
The device of liquid Large Inclusions and the operating method of the device.To solve problems of the prior art: 1, artificial
Operation, it is relatively high to the technical requirements of operator；2, manual operation, to the operating time can not accurate perception, be easy there are residual
Remaining stuffing sand；3, manual operation, there are security risks, easily cause actual bodily harm to worker；4, manual operation, time-consuming, work
The problems such as making low efficiency.
The technical solution of the invention is as follows is achieved:
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 are set to tundish side, and ladle is set to the top of tundish, and excessive slag ladle is placed in excessive slag chute head piece lower part；Its
It is characterized in that being provided with air deflector on the barricade between tundish and excessive slag chute；
Air deflector of the present invention is one section of closed tubular structure made of steel plate；It is arranged in the inner wall of air deflector
There is flame retardant coating；The top of air deflector opens up round deflector entrance；
The long nozzle of ladle lower part of the present invention, which is inserted into air deflector entrance, carries out row's stuffing sand.
Flame retardant coating of the present invention is the refractory material of 30-50mm thickness.
The diameter of air deflector entrance of the present invention is 30-50mm bigger than the diameter of long nozzle, guarantees that long nozzle can be suitable
Benefit is inserted into air deflector.
The connection type 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 to one end to fix loaded on barricade top, air deflector open end
It is placed in excessive slag chute side；
Socket connection of the present invention is that groove is arranged in the lower part for closing one end in air deflector, and groove is installed in gear
On wall, air deflector open end is placed in excessive slag chute side；
Air deflector open end of the present invention tilts down 10-20 degree, it is ensured that stuffing sand smoothly flows out.
Groove height of the present invention is 40-80mm, and width is 15-30mm bigger than the thickness of barricade, guarantees that barricade can
Smoothly it is embedded into groove and is fixed.
A kind of operating method for the device controlling molten steel Large Inclusions, it is characterised in that the operating method are as follows:
A, ladle is moved into teeming stage, is rotated ladle to face air deflector entry position by ladle rotating device
Top, and long nozzle is installed by mechanical arm；
B, ladle is rotated to long nozzle face air deflector entry position by ladle rotating device, then control casting is flat
The elevator of platform moves down ladle, is inserted into long nozzle lower end in air deflector entrance；
C, it opens slide plate stuffing sand to be flowed into air deflector from long nozzle, the slide plate opening time is 10-20s；
D, slide plate is closed, the elevator for controlling teeming stage is proposed the long nozzle of ladle by air deflector entrance, and rapidly
Ladle is rotated to and dropped to casting position, starts to be poured.
It is an advantage of the invention that it will be apparent that being mainly manifested in:
1, performance safety is reliable:
(1), during the installation process, air deflector is fixed on gear by fixed connection or socket connection mode to the present invention
On wall, receiving stuffing sand will not tumble in the process, safety and stability；
(2), the present invention receives stuffing sand and does not need manual behaviour in the process in tundish using being preceding installed on tundish
Make, therefore needs not worry about molten steel splash and threaten personal safety；
2, stuffing sand remnants are few, and molten steel cleanness is high:
(1), present invention control stuffing sand becomes molten steel Large Inclusions device in addition to entrance and exit, other positions are equal
It is closed structure, therefore during receiving stuffing sand, 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 control steel ladle slide board opening and closing in the present invention, it is ensured that it is most to draw sulphur sand
It may drain.In this way it is possible to prevente effectively from stuffing sand becomes molten steel Large Inclusions, the quality of steel is significantly improved；
3, the configuration of the present invention is simple, it is easy to operate, easy to spread:
(1), air deflector is the tubulose closed container being formed from steel in the present invention, embeds flame retardant coating, and structure is simple, is made non-
Often it is easy.Meanwhile according to enterprise practical, different tundish can make corresponding air deflector, easy to spread to be implanted in difference
Tundish on use；
(2), during air deflector is installed, it is only necessary to air deflector is fixed on barricade, outlet bottom is placed in tundish
It overflows on slag chute, installation and removal are very convenient, and air deflector may be reused；
(3), tundish is before use, air deflector has been installed on tundish, therefore no longer needs in operation
Staff's manual operations need to only control the existing rotation of teeming stage and lifting device controls ladle before and after receiving stuffing sand
?.
4, low in cost, good in economic efficiency:
(1) since control device structure is simple, cost is very low, and not needing big invest 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 promotion of Competitive Products can band
The up-regulation of movable property product selling price, generates significant economic benefit；
The present invention has structure novel, simple processing, esy to use, safe and reliable, molten steel Large Inclusions few etc. excellent
Point, high-volume, which puts goods on the market, will generate positive social benefit and significant economic benefit.
Detailed description of the invention
The present invention shares 3 width attached drawings, wherein:
Attached drawing 1 is the structural schematic diagram when present invention receives stuffing sand；
Attached drawing 2 is casting condition figure of the present invention；
Attached drawing 3 is top view of the present invention.
In figure: 1, ladle 2, tundish 3, barricade 4, groove 5, long nozzle 6, air deflector entrance 7, air deflector
8, air deflector outlet 9, the slag chute 10 that overflows, excessive slag ladle.
Specific embodiment
Specific embodiment 1
Specific embodiments of the present invention are as shown in the picture, control molten steel Large Inclusions device, including ladle 1, in
Between packet 2, overflow slag chute 9 and excessive slag ladle 10, the slag chute 9 that overflows is set to 2 side of tundish, and ladle 1 is set to the top of tundish 2, overflows
Slag ladle 10 is placed in excessive 9 head piece lower part of slag chute；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 one section of closed tubular structure made of steel plate；The inner wall 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 1 lower part of ladle, which is inserted into air deflector entrance 6, carries out row's stuffing sand.
Flame retardant coating is the refractory material of 40mm thickness.
The diameter of air deflector entrance 6 is 40mm bigger than the diameter of long nozzle 5.
Air deflector 7 is closed one end and fixed loaded on 3 top of barricade by air deflector 7 and the fixed connection of barricade 3, and air deflector 7 is opened
Mouth end is placed in excessive 9 side of slag chute；7 open end of air deflector tilts down 15 degree.
Control the operating method of the device of molten steel Large Inclusions are as follows:
A, ladle is moved into teeming stage, is rotated ladle to the position of face air deflector entrance by ladle rotating device
It sets, and long nozzle 5 is installed by mechanical arm；
B, ladle is threaded to by long nozzle face air deflector entry position by ladle rotating device, then controls teeming stage
Elevator ladle 1 is moved down, be inserted into 5 lower end of long nozzle in air deflector entrance 6；
C, it opens slide plate stuffing sand to be flowed into air deflector from long nozzle 5, the slide plate opening time is 15s；
D, slide plate is closed, the elevator for controlling teeming stage is proposed the long nozzle 5 of ladle 1 by air deflector entrance 6, and fast
Ladle 1 is rotated and is dropped to casting position by speed, starts to be poured.
Specific embodiment 2
Specific embodiments of the present invention are as shown in the picture, control molten steel Large Inclusions device, including ladle 1, in
Between packet 2, overflow slag chute 9 and excessive slag ladle 10, the slag chute 9 that overflows is set to 2 side of tundish, and ladle 1 is set to the top of tundish 2, overflows
Slag ladle 10 is placed in excessive 9 head piece lower part of slag chute；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 one section of closed tubular structure made of steel plate；The inner wall 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 1 lower part of ladle, which is inserted into air deflector entrance 6, carries out row's stuffing sand.
Flame retardant coating is the refractory material of 40mm thickness.
The diameter of air deflector entrance 6 is 40mm bigger than the diameter of long nozzle 5.
Air deflector 7 and 3 socket connection of barricade；Groove 4 is arranged in the lower part that air deflector 7 closes one end, and groove 4 is installed in
On barricade 3,7 open end of air deflector is placed in excessive 9 side of slag chute；7 open end of air deflector tilts down 15 degree.
4 height of groove is 60mm, and width is 20mm bigger than the thickness of barricade 3.
Control the operating method of the device of molten steel Large Inclusions are as follows:
A, ladle is moved into teeming stage, is rotated ladle to face air deflector entry position by ladle rotating device
Top, and long nozzle 5 is installed by mechanical arm；
B, ladle is threaded to by long nozzle face air deflector entry position by ladle rotating device, then controls teeming stage
Elevator ladle 1 is moved down, be inserted into 5 lower end of long nozzle in air deflector entrance 6；
C, it opens slide plate stuffing sand to be flowed into air deflector from long nozzle 5, the slide plate opening time is 20s；
D, slide plate is closed, the elevator for controlling teeming stage is proposed the long nozzle 5 of ladle 1 by air deflector entrance 6, and fast
Ladle 1 is rotated and is dropped to casting position by speed, starts to be poured.
The above, preferable specific embodiment only of the 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, according to the technique and scheme of the present invention
And its design of the invention is subject to equivalent substitution or change and is covered by the protection scope of the present invention.
Claims (5)
1. a kind of device for controlling molten steel Large Inclusions, including ladle (1), tundish (2), excessive slag chute (9) and excessive slag ladle
(10), excessive slag chute (9) are set to tundish (2) side, and ladle (1) is set to the top of tundish (2), and excessive slag ladle (10) are placed in
Excessive slag chute (9) head piece lower part；It is characterized in that being provided with air deflector on barricade (3) between tundish (2) and excessive slag chute (9)
(7)；
The air deflector (7) is one section of closed tubular structure made of steel plate；It is provided in the inner wall 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 described ladle (1) lower part, which is inserted into air deflector entrance (6), carries out row's stuffing sand；
The operating method of the device of the control molten steel Large Inclusions are as follows:
A, ladle is moved into teeming stage, is rotated ladle by ladle rotating device upper to face air deflector entry position
Side, and long nozzle (5) are installed by mechanical arm；
B, ladle is rotated to long nozzle face air deflector entry position by ladle rotating device, then controls teeming stage
Elevator moves down ladle (1), is inserted into long nozzle (5) lower end in air deflector entrance (6)；
C, it opens slide plate stuffing sand to be flowed into air deflector from long nozzle (5), the slide plate opening time is 10-20s；
D, slide plate is closed, controls the elevator of teeming stage for the long nozzle (5) of ladle (1) by air deflector
Entrance (6) proposes, and ladle (1) is rotated to rapidly and dropped to casting position, starts to be poured.
2. the device of control molten steel Large Inclusions according to claim 1, it is characterised in that the 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 the air deflector enters
The diameter of mouth (6) is 30-50mm bigger than the diameter of long nozzle (5).
4. the device of control molten steel Large Inclusions according to claim 1, it is characterised in that the air deflector (7)
Connection type with barricade (3) is fixed connection or socket connection；
The fixed connection is that air deflector (7) closing one end is fixed loaded on barricade (3) top, air deflector (7) open end
It is placed in excessive slag chute (9) side；
The socket connection is that groove (4) is installed in gear in lower part setting groove (4) of air deflector (7) closing one end
On wall (3), air deflector (7) open end is placed in excessive slag chute (9) side；
Described air deflector (7) open end tilts down 10-20 degree.
5. the device of control molten steel Large Inclusions according to claim 4, it is characterised in that the groove (4) is high
Degree is 40-80mm, and width is 15-30mm bigger than the thickness of barricade (3).
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 |
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| Publication Number | Publication Date |
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| CN106944608A CN106944608A (en) | 2017-07-14 |
| CN106944608B true CN106944608B (en) | 2019-07-30 |
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Families Citing this family (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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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| CN105921734B (en) * | 2016-05-13 | 2018-08-31 | 鞍山市华兴冶金炉料有限公司 | A kind of continuous casting steel unwraps the method poured and keep molten steel cleaning |
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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 |
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| CN106944608A (en) | 2017-07-14 |
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