CN202824647U - Continuous casting bale protecting and pouring sealing gasket - Google Patents
Continuous casting bale protecting and pouring sealing gasket Download PDFInfo
- Publication number
- CN202824647U CN202824647U CN 201220430358 CN201220430358U CN202824647U CN 202824647 U CN202824647 U CN 202824647U CN 201220430358 CN201220430358 CN 201220430358 CN 201220430358 U CN201220430358 U CN 201220430358U CN 202824647 U CN202824647 U CN 202824647U
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- Prior art keywords
- sealing gasket
- long nozzle
- continuous casting
- argon
- protecting
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- Expired - Fee Related
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Abstract
Provided is a continuous casting bale protecting and pouring sealing gasket. The continuous casting bale protecting and pouring sealing gasket belongs to the technical field of a continuous casting device and is applied to improve protective effects of a long nozzle argon blowing on the premise of effective sealing. The technical scheme of the continuous casting bale protecting and pouring sealing gasket is as follows: A sealing gasket body is a cone-shaped sleeve shape. The cone angle of the cone-shaped sleeve is matched with the cone angle of the inwall of a bowl portion of the long nozzle. A plurality of air holes are distributed on the wall of the cone-shaped sleeve of the sealing gasket. The number, the bore diameter and the distribution place of the air holes correspond to the number, the bore diameter and the distribution place of the long nozzle argon blowing one by one. The continuous casting bale protecting and pouring sealing gasket adds the air holes to the sealing gasket. The sealing gasket is tightly filled and sealed between a bale collector nozzle and the long nozzle. The long nozzle can be directly used to work on the outer wall of the collector nozzle so as to compensate for the pressure caused by a molten steel flow by means of blowing in argon into an external argon pipe. Argon sealing effects can be well guaranteed and more stable protecting and pouring effects can be achieved than a traditional sealing protection due to the upper portion of the air holes of the sealing gasket is till in close contact with the bale collector nozzle and the long nozzle and the argon is prevented from escaping upward.
Description
Technical field
The utility model relates to the collector nozzle of ladle of the large bag of a kind of continuous casting and the protection cast sealing gasket of junction, long nozzle top, belongs to the metallurgical continuous casting equipment technical field.
Background technology
In casting process, when molten steel by ladle when long nozzle flows into tundish since MOLTEN STEEL FLOW at the mouth of a river the inner negative pressure that produces, the air of outside, the mouth of a river has the trend that enters molten steel by mouth of a river wall and junction, the mouth of a river.The air that enters in the molten steel by the mouth of a river or junction, the mouth of a river can produce material impact to slab quality and nozzle blocking.At first, the alloying element reaction in airborne oxygen and the steel generates corresponding oxide inclusions and enters in the steel, and nitrogen also can be dissolved in molten steel simultaneously, causes molten steel nitrogen pick-up; Secondly, the oxide inclusions that forms after the alloying element oxidation also can adhere at the inwall at the mouth of a river, pile up, and then makes the mouth of a river produce bias current and obstruction.Therefore, control sucks the air capacity of inside, the mouth of a river effectively, and reduce the oxidation of alloying element in the steel and dissolve in nitrogen content in the molten steel, be the important means of prevention of immersed nozzle clogging and raising slab quality.Enter air capacity in the inner molten steel in the mouth of a river for reducing by collector nozzle of ladle and junction, long nozzle top, the most effective technical measures are exactly to seal up sealing gasket in its junction and in end, mouth of a river blowing argon at present.Overwhelming majority steel plant adopt the parallel mode of these two kinds of measures, and are air-breathing to reduce to greatest extent molten steel, namely are blown into argon gas-sealed by long nozzle external Argon pipe suitable for reading when long nozzle bowl suitable for reading section uses sealing gasket.But also band is served problem thus, or stopped up the argon gas pipeline owing to sealing gasket is excessive and circulated, or since the too small argon gas opening of sealing gasket blow out can't the effective compensation negative pressure, these problems all can cause preventing the secondary oxidation of steel poor effect, therefore are necessary existing sealing is improved.
The utility model content
Technical problem to be solved in the utility model has provided the large bag protection of a kind of continuous casting cast sealing gasket; this sealing gasket can overcome conflicting between sealing gasket sealing and the long nozzle argon blowing seal; can either satisfy the effect of secluding air; simultaneously can guarantee the unimpeded of ar gas passage again; improve argon envelope effect, reduce the air-breathing secondary oxidation that causes of molten steel.
The technical scheme that solves the problems of the technologies described above is:
The large bag protection of a kind of continuous casting cast sealing gasket; the sealing gasket body is the conical sleeve shape; the tapering of the tapering of conical sleeve and long water gap bowl part inwall is complementary; the sealing gasket body is under large bag in the gap between the mouth of a river and the long water gap bowl part; the upper end of sealing gasket body is positioned at the top of long nozzle ar gas passage; be distributed with a plurality of air-vents on the taper sheath barrel of sealing gasket body, the number of air-vent, pore size and distribution position are corresponding one by one with quantity, the pore size and distribution position of long nozzle ar gas passage.
The large bag protection of above-mentioned continuous casting cast sealing gasket, described sealing gasket body upper end open circumference is connected with the horizontal seal circle of abduction, the horizontal position close contact of horizontal seal circle and long nozzle outsourcing box hat.
The beneficial effects of the utility model are:
The utility model is established air-vent newly at original sealing gasket, the diameter of air-vent and distribution are corresponding one by one with long water gap bowl part Argon circumferential weld outlet opening diameter and distributing position, in use, sealing gasket is closely being filled sealing between the mouth of a river and the long nozzle under the large bag, long nozzle is blown into argon gas by external tunger tube also can directly act on the negative pressure that mouth of a river outer wall setoff invar water flow causes under the large bag, since the above part of sealing gasket air-vent still with large bag under the mouth of a river and long nozzle close contact, hinder argon gas and upwards escape, argon envelope effect is able to good guarantee.Sealing gasket and long nozzle Argon with air-vent are used jointly, have played the protection cast effect more stable than the conventional seals protection.The utility model can provide raising long nozzle blowing argon effect under the prerequisite of effective sealing, and simple in structure, applicability is strong.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is use view of the present utility model;
Fig. 3 is the A-A cutaway view of Fig. 2.
Mark is as follows among the figure: sealing gasket body 1, air-vent 2, long water gap bowl part 3, long nozzle outsourcing box hat 4, the external Argon pipe 5 of long nozzle, long nozzle ar gas passage 6, the lower mouth of a river 7 of large bag.
The specific embodiment
Show among the figure, sealing gasket body 1 is the conical sleeve shape, the tapering of the tapering of conical sleeve and long water gap bowl part 3 inwalls is complementary, the major diameter opening perimeter of conical sleeve is connected with the horizontal seal circle of abduction, the horizontal position close contact of horizontal seal circle and long nozzle outsourcing box hat 4, sealing gasket body 1 are under large bag in the gap between the mouth of a river 7 and the long water gap bowl part 3.
Show among the figure, be distributed with a plurality of air-vents 2 at the taper sheath barrel of sealing gasket body 1, the number of air-vent 2, pore size and distribution position and long nozzle ar gas passage 6 quantity, pore size and distribution position are corresponding one by one.
In said structure and since the air-vent of sealing gasket body 12 or more part still with large bag under the mouth of a river 7 and long water gap bowl part 3 close contacts, hinder argon gas and upwards escape, argon seals effect and is able to good guarantee
Show among the figure that long nozzle ar gas passage 6 and the air-vent 2 on the sealing gasket body 1 of an embodiment of the present utility model are 8, along the body circumference uniform distribution of long water gap bowl part 3 and sealing, long nozzle ar gas passage 6 and air-vent 2 are connected respectively for they.
In actual use, can adjust sealing gasket body 1 and air-vent 2 positions and diameter according to the mouth of a river 7 and long nozzle gauge size under the large bag of different manufacturers.
Installation of the present utility model and the course of work are as follows:
Before after Da Bao puts in place, long nozzle being installed, sealing gasket body 1 is installed in long water gap bowl part 3, with long nozzle outsourcing box hat 4 close contacts, attention overlaps the air-vent 2 on the sealing gasket body 1 with long nozzle ar gas passage 6 outlet opening positions, then be set under the large bag on the mouth of a river 7, hold out against by the hydraulic pressure on the mechanical arm or mechanical device, connect argon gas by the external Argon pipe 5 of long nozzle simultaneously.Water molten steel when the long nozzle unwrapping greatly, steel stream flows down the trend that produces negative inspiratory pressure, and because of sealing gasket body 1, long water gap bowl part 3 and the lower mouth of a river 7 threes close contact under impaction state of large bag, sealing gasket body 1 intercepts air and enters molten steel by contact-making surface.Argon gas is blown into by the external Argon pipe 5 of long nozzle; blow to the mouth of a river 7 outer walls under the large bag via the air-vent 2 on long nozzle ar gas passage 6 and the sealing gasket body 1 and play the effect of compensating for negative pressure; the sealing gasket body 1 on air-vent 2 tops has stoped circulation road on the argon gas simultaneously; so both guaranteed argon envelope quality; reduced again the argon gas loss, favourable to stable protection cast effect.
Claims (2)
1. sealing gasket is poured into a mould in the large bag protection of continuous casting; it is characterized in that: sealing gasket body (1) is the conical sleeve shape; the tapering of the tapering of conical sleeve and long water gap bowl part (3) inwall is complementary; sealing gasket body (1) is arranged in the gap between the mouth of a river under the large bag (7) and the long water gap bowl part (3); the upper end of sealing gasket body (1) is positioned at the top of long nozzle ar gas passage (6); be distributed with a plurality of air-vents (2) on the taper sheath barrel of sealing gasket body (1), the number of air-vent (2); the quantity of pore size and distribution position and long nozzle ar gas passage (6); the pore size and distribution position is corresponding one by one.
2. sealing gasket is poured into a mould in the large bag protection of continuous casting according to claim 1; it is characterized in that: described sealing gasket body (1) upper end open circumference is connected with the horizontal seal circle of abduction, the horizontal position close contact of horizontal seal circle and long nozzle outsourcing box hat (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430358 CN202824647U (en) | 2012-08-28 | 2012-08-28 | Continuous casting bale protecting and pouring sealing gasket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430358 CN202824647U (en) | 2012-08-28 | 2012-08-28 | Continuous casting bale protecting and pouring sealing gasket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202824647U true CN202824647U (en) | 2013-03-27 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220430358 Expired - Fee Related CN202824647U (en) | 2012-08-28 | 2012-08-28 | Continuous casting bale protecting and pouring sealing gasket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202824647U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103817303A (en) * | 2013-12-04 | 2014-05-28 | 石家庄钢铁有限责任公司 | Pouring protecting device and pouring protecting control method for continuously cast ladle |
| CN104057078A (en) * | 2013-11-20 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Long nozzle and continuous casting method |
| CN105436494A (en) * | 2015-12-22 | 2016-03-30 | 芜湖新兴铸管有限责任公司 | Sealing ring and large package water port device |
| CN106807931A (en) * | 2017-03-30 | 2017-06-09 | 山东钢铁股份有限公司 | A kind of Dual-layer sealing device of big bag long nozzle |
| CN107598147A (en) * | 2017-09-19 | 2018-01-19 | 石家庄钢铁有限责任公司 | Encapsulating method is poured into a mould in a kind of plasticity clad steel water conservation |
| CN107649670A (en) * | 2017-11-13 | 2018-02-02 | 芜湖新兴铸管有限责任公司 | A kind of big bag long nozzle sealing device of continuous casting |
| CN108103271A (en) * | 2018-01-25 | 2018-06-01 | 石家庄钢铁有限责任公司 | A kind of device and method for preventing molten steel secondary oxidation |
| CN108526454A (en) * | 2018-06-04 | 2018-09-14 | 河钢股份有限公司 | A kind of curved surface sealing two-way argon blowing long nozzle structure |
| CN108637236A (en) * | 2018-05-14 | 2018-10-12 | 南京钢铁股份有限公司 | A kind of long nozzle sealing ring |
| CN112893828A (en) * | 2019-11-19 | 2021-06-04 | 上海梅山钢铁股份有限公司 | Gas sealing method for continuous casting ladle long nozzle suspension mode |
-
2012
- 2012-08-28 CN CN 201220430358 patent/CN202824647U/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104057078A (en) * | 2013-11-20 | 2014-09-24 | 攀钢集团攀枝花钢铁研究院有限公司 | Long nozzle and continuous casting method |
| CN103817303A (en) * | 2013-12-04 | 2014-05-28 | 石家庄钢铁有限责任公司 | Pouring protecting device and pouring protecting control method for continuously cast ladle |
| CN103817303B (en) * | 2013-12-04 | 2015-11-04 | 石家庄钢铁有限责任公司 | The cast protective device of the large bag of a kind of continuous casting and control method |
| CN105436494A (en) * | 2015-12-22 | 2016-03-30 | 芜湖新兴铸管有限责任公司 | Sealing ring and large package water port device |
| CN106807931A (en) * | 2017-03-30 | 2017-06-09 | 山东钢铁股份有限公司 | A kind of Dual-layer sealing device of big bag long nozzle |
| CN107598147A (en) * | 2017-09-19 | 2018-01-19 | 石家庄钢铁有限责任公司 | Encapsulating method is poured into a mould in a kind of plasticity clad steel water conservation |
| CN107649670A (en) * | 2017-11-13 | 2018-02-02 | 芜湖新兴铸管有限责任公司 | A kind of big bag long nozzle sealing device of continuous casting |
| CN108103271A (en) * | 2018-01-25 | 2018-06-01 | 石家庄钢铁有限责任公司 | A kind of device and method for preventing molten steel secondary oxidation |
| CN108103271B (en) * | 2018-01-25 | 2023-07-25 | 石家庄钢铁有限责任公司 | Device and method for preventing secondary oxidation of molten steel |
| CN108637236A (en) * | 2018-05-14 | 2018-10-12 | 南京钢铁股份有限公司 | A kind of long nozzle sealing ring |
| CN108637236B (en) * | 2018-05-14 | 2020-06-19 | 南京钢铁股份有限公司 | Long nozzle sealing ring |
| CN108526454A (en) * | 2018-06-04 | 2018-09-14 | 河钢股份有限公司 | A kind of curved surface sealing two-way argon blowing long nozzle structure |
| CN112893828A (en) * | 2019-11-19 | 2021-06-04 | 上海梅山钢铁股份有限公司 | Gas sealing method for continuous casting ladle long nozzle suspension mode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20160828 |