CN205057036U - A beam protection device that is used for big packet of pour steel of continuous casting - Google Patents
A beam protection device that is used for big packet of pour steel of continuous casting Download PDFInfo
- Publication number
- CN205057036U CN205057036U CN201520813072.8U CN201520813072U CN205057036U CN 205057036 U CN205057036 U CN 205057036U CN 201520813072 U CN201520813072 U CN 201520813072U CN 205057036 U CN205057036 U CN 205057036U
- Authority
- CN
- China
- Prior art keywords
- vertical tube
- tube part
- continuous casting
- large bag
- protective device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Continuous Casting (AREA)
Abstract
The utility model provides a beam protection device that is used for big packet of pour steel of continuous casting, it includes the casing and is located casing inside is run through the casing is used for the passageway through drainage sand and molten steel, the passageway includes: the interface part for with to wrap mouth of a river cooperation greatly sealed, the cover is established on wrapping the mouth of a river greatly, narrow straight section of thick bamboo portion, one end and the interface part link up, and the internal diameter is less than the internal diameter of interface part, wide straight section of thick bamboo portion, with the narrow straight section of thick bamboo portion other end link up, and the internal diameter is greater than the internal diameter of narrow straight section of thick bamboo portion. The utility model discloses can realize that the essence of package pouring protection is improved greatly, big package pouring protection is remarkably productive to the installation is simple, in the aspect of the use, maneuverability is strong.
Description
Technical field
The utility model relates to metallurgical continuous casting equipment technical field, particularly a kind of beam protective device for the large bag pour steel of continuous casting.
Background technology
At present, continuous casting generally takes full guard pouring technology, mainly comprises four aspects: the beam protection of large bag-tundish, the protection of pouring basket liquid level, the beam protection of tundish-crystallizer, the protection of mold liquid level.
Wherein, the steel stream protection of large bag-tundish adopts large bag long nozzle; Main Function prevents steel stream from contacting with air; reduce the secondary oxidation of molten steel; also contribute to the stream flowing of stable large Baogang, reduce tundish surface fluctuation, improve pouring basket liquid level slag; reduce foreign substance in molten steel content, improve steel quality.
In the large bag steel pouring process of continuous casting, first open large water-coating port stuffing sand is released, the mouth of a river is closed in 5 ~ 10 seconds after seeing steel stream, hang large water-coating port upper end and wrap greatly the mouth of a river and be connected, Metal in Tundish liquid level is inserted in lower end, thus large Baogang stream is come with air exclusion, play the effect of protection steel stream, subject matter unwraps greatly to water rear steel stream and must open wide cast 5 ~ 10 seconds, cause the serious secondary oxidation of this part molten steel, if the unlimited duration of pouring is too short, wrap greatly mouth of a river temperature low, easily cause molten steel solidification to block and wrap the mouth of a river greatly, cause large bag to burn oxygen; If it is long to open wide cast, by the secondary oxidation of aggravation molten steel, worsen steel quality.
Unwrap greatly and water the main cause that rear steel stream must open wide cast and be: when assuring greatly standby, need to fill stuffing sand in steel base brick and filling pipe end, prevent molten steel inject large bag laggard enter brick cup and filling pipe end solidify, released again when large bag cast, played drainage.Stuffing sand density about 2.0 × 103 kilograms per cubic meter, moisture is within 0.5%.Hanging large bag long nozzle opens when watering, due to stuffing sand, comparatively Tundish Slag, molten steel density are low, stuffing sand will be blocked in the large bag long nozzle straight tube of more than pouring basket liquid level, add that stuffing sand contains moisture, gasify after being subject to molten steel high-temperature baking, expand, large bag long nozzle chamber pressure is high, and large water-coating port is opened when watering and caused molten steel to overflow from the rim of a bowl, easily causes the sticky parts production accident of large bag.
Summary of the invention
The purpose of this utility model is to provide a kind of beam protective device for the large bag pour steel of continuous casting, to solve problems such as unwrapping greatly cast protected effect difference.
In order to solve the problem, the utility model provides following technical scheme:
For a beam protective device for the large bag pour steel of continuous casting, it comprises housing and is positioned at described enclosure interior and runs through described housing and for the passage by stuffing sand and molten steel; Described passage comprises: interface portion, for wrap greatly mouth of a river fitted seal, be set in and wrap greatly on the mouth of a river; Narrow vertical tube part, one end and described interface portion through, internal diameter is less than the internal diameter of described interface portion; Wide vertical tube part, through with the described narrow vertical tube part other end, internal diameter is greater than the internal diameter of described narrow vertical tube part.
In the beam protective device for the large bag pour steel of continuous casting as above, preferably, also comprise: tapered portion, between described narrow vertical tube part and wide vertical tube part, inside described narrow vertical tube part to described wide vertical tube part increases gradually without leave, seamlessly transits to be formed.
In the beam protective device for the large bag pour steel of continuous casting as above, preferably, the angle of taper that described tapered portion is formed is 50-70 °.
In the beam protective device for the large bag pour steel of continuous casting as above, preferably, also comprise neck, between described interface portion and narrow vertical tube part, inside described interface portion to described narrow vertical tube part reduces gradually without leave, seamlessly transits to be formed.
In the beam protective device for the large bag pour steel of continuous casting as above, preferably, the angle of taper of described neck formation is 60-80 °.
In the beam protective device for the large bag pour steel of continuous casting as above, preferably, the length of described wide vertical tube part is at least 300mm.
In the beam protective device for the large bag pour steel of continuous casting as above, preferably, the degree of depth that described wide vertical tube part inserts pouring basket liquid level is 100 ~ 200mm.
In the beam protective device for the large bag pour steel of continuous casting as above, preferably, described housing is shaping by quartz sand refractory material casting.
In the beam protective device for the large bag pour steel of continuous casting as above, preferably, described housing by corundum or graphitic carbon refractory material compressing.
In the beam protective device for the large bag pour steel of continuous casting as above, preferably, described housing entirety is in tubular.
Analyze known, in the utility model, the beam passage of large bag long nozzle comprises the syllogic design of interface portion, narrow vertical tube part, wide vertical tube part.Solve large bag long nozzle to insert below Metal in Tundish liquid level and open to water and turn over this difficult problem of steel.Compare existing large bag cast resist technology, the essence that the utility model can realize large bag cast protection is improved, and large bag cast protected effect is given prominence to, and installs simple, use, workable.
Accompanying drawing explanation
Fig. 1 is the utility model embodiment and application structure schematic diagram thereof;
Fig. 2 is the tapered portion of the utility model embodiment and the cone angle schematic diagram of neck.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the utility model is described in further details.
In order to structure and the application thereof of clearer description the present embodiment, Fig. 1 and Fig. 2 show the present embodiment and and wrap greatly 3, annexation, position relationship between tundish 2.In large bag 3 bottoms, be provided with and wrap greatly the mouth of a river 4.
As depicted in figs. 1 and 2, the present embodiment comprises housing 101 and is positioned at housing 101 inner and on housing 101 axis direction, run through housing 101 and for the path 10 2 by stuffing sand and molten steel.Preferably, housing 101 entirety is in tubular, and substantially wait wall thickness, outer appearnce is similar to tubaeform.Path 10 2 in housing 101 comprises: interface portion 11, neck 12, narrow vertical tube part 13, tapered portion 14, wide vertical tube part 15.Wherein, interface portion 11 and wrap greatly the mouth of a river 4 fitted seal, is set in and wraps greatly on the mouth of a river 4.Interface portion 11 is provided with the bowl-shape of opening in bottom.The active force upwards that the bottom that can put on interface portion by large bag holder in reality produces realizes fitted seal.Narrow vertical tube part 13 one end and interface portion 11 through, internal diameter is less than the internal diameter of interface portion 11.Wide vertical tube part 15 is through with narrow vertical tube part 13 other end, and internal diameter is greater than the internal diameter of narrow vertical tube part 13.During application, unwrap greatly after watering, stuffing sand is dirty, because stuffing sand density is obviously on the low side compared with molten steel, so stuffing sand rests in large water-coating port, more than molten steel; Stuffing sand contains moisture, opens when watering and has portion gas to discharge; Internal diameter due to wide vertical tube part 15 is greater than the internal diameter of narrow vertical tube part 13, therefore can improve memory space to hold the gas of stuffing sand and discharge thereof.
Neck 12,14, tapered portion are the transition portion of the inconsistent adjacent segment of internal diameter, such as, neck 12 is between interface portion 11 and narrow vertical tube part 13, in it, interface portion 11 reduces gradually to narrow vertical tube part 13 without leave, formation seamlessly transits, the angle of the cone angle of neck formation is 55 ~ 85 °, preferred 60-80 °, such as: 60 °, 65 °, 70 °, 75 °, 80 °.Tapered portion 14 is between narrow vertical tube part 13 and wide vertical tube part 15, in it, narrow vertical tube part 13 increases gradually to wide vertical tube part 15 without leave, and formation seamlessly transits, and the angle of the cone angle beta that tapered portion is formed is 45 ~ 75 °, preferred 50-70 °, such as: 50 °, 55 °, 60 °, 65 °, 70 °.The height of neck can be 50 ~ 100mm, and the height in tapered portion can be 100 ~ 150mm.
The present embodiment can design shape, the size of each section according to different ladle shapes, beam size, insertion depth, but should ensure more than tundish 2 molten steel 21 liquid level, wide vertical tube part 15 length is not less than 200mm, thus memory space can be provided for stuffing sand and Exhaust Gas thereof, avoid the phenomenon emitting steel from large water-coating port interface portion because insufficient space occurs.If because large water-coating port inserted shallow, then large bag beam turns over the fluctuation of rear pouring basket liquid level greatly, easy slag; If inserted dark, in the middle of large bag beam impacts at the bottom of handbag, the resistance to material in bottom is easily caused to wash away seriously, increase tundish and wear bag risk, the length of the wide vertical tube part 15 therefore below molten steel 21 liquid level is between 90 ~ 220mm, preferably between 100 ~ 200mm therefore, the length of wide vertical tube part 15 is at least 300mm, is preferably 400 ~ 500mm.
Manufacture the present embodiment time, housing 101 material should be refractory material, structure should be one-body molded, and such as, housing 101 is shaping by quartz sand refractory material casting, or, housing 101 by corundum or graphitic carbon refractory material compressing.
During application the present embodiment; after large bag 3 is opened and is watered; wide straight tube 15 plays and stores stuffing sand, pressure release effect; prevent molten steel from overflowing from interface portion 11, realize large bag and hang the mouth of a river and insert below pouring basket liquid level and open and water, open and slowly open large bag beam when watering (such as first time unwraps greatly when opening is not whole unlatching; but open with the open degree of 1/2 ~ 2/3); prevent from opening and water steel and flow through and turn over steel greatly, stop to unwrap greatly and water that molten steel is naked waters secondary oxidation, improve large bag molding casting effect.
To sum up, the utility model is by arranging horn mouth in large bag long nozzle bottom, open below realization large bag extension long nozzle insertion Metal in Tundish liquid level and water, can avoid unwrapping greatly molten steel when watering directly to contact with air in casting process, reduce the gas content of molten steel oxygen, nitrogen, improve the degree of purity of molten steel, promote slab quality, improve stocking end properties.
As known by the technical knowledge, the utility model can be realized by other the embodiment not departing from its Spirit Essence or essential feature.Therefore, above-mentioned disclosed embodiment, with regard to each side, all just illustrates, is not only.Allly all to be included in the utility model within the scope of the utility model or being equal to the change in scope of the present utility model.
Claims (10)
1. for a beam protective device for the large bag pour steel of continuous casting, it is characterized in that, comprise housing and be positioned at described enclosure interior and run through described housing and for the passage by stuffing sand and molten steel;
Described passage comprises:
Interface portion, for wrap greatly mouth of a river fitted seal, be set in and wrap greatly on the mouth of a river;
Narrow vertical tube part, one end and described interface portion through, internal diameter is less than the internal diameter of described interface portion;
Wide vertical tube part, through with the described narrow vertical tube part other end, internal diameter is greater than the internal diameter of described narrow vertical tube part.
2. the beam protective device for the large bag pour steel of continuous casting according to claim 1, is characterized in that, also comprise:
Tapered portion, between described narrow vertical tube part and wide vertical tube part, inside described narrow vertical tube part to described wide vertical tube part increases gradually without leave, seamlessly transits to be formed.
3. the beam protective device for the large bag pour steel of continuous casting according to claim 2, is characterized in that, the angle of taper that described tapered portion is formed is 50-70 °.
4. the beam protective device for the large bag pour steel of continuous casting according to claim 2, is characterized in that, also comprise:
Neck, between described interface portion and narrow vertical tube part, inside described interface portion to described narrow vertical tube part reduces gradually without leave, seamlessly transits to be formed.
5. the beam protective device for the large bag pour steel of continuous casting according to claim 4, is characterized in that, the angle of taper of described neck formation is 60-80 °.
6. the beam protective device for the large bag pour steel of continuous casting according to claim 1, is characterized in that, the length of described wide vertical tube part is at least 300mm.
7. the beam protective device for the large bag pour steel of continuous casting according to claim 1, is characterized in that, the degree of depth that described wide vertical tube part inserts pouring basket liquid level is 100 ~ 200mm.
8. the beam protective device for the large bag pour steel of continuous casting according to claim 1, it is characterized in that, described housing is shaping by quartz sand refractory material casting.
9. the beam protective device for the large bag pour steel of continuous casting according to claim 1, is characterized in that, described housing by corundum or graphitic carbon refractory material compressing.
10. according to the arbitrary described beam protective device for the large bag pour steel of continuous casting of claim 1-9, it is characterized in that, described housing entirety is in tubular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520813072.8U CN205057036U (en) | 2015-10-19 | 2015-10-19 | A beam protection device that is used for big packet of pour steel of continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520813072.8U CN205057036U (en) | 2015-10-19 | 2015-10-19 | A beam protection device that is used for big packet of pour steel of continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205057036U true CN205057036U (en) | 2016-03-02 |
Family
ID=55383639
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520813072.8U Active CN205057036U (en) | 2015-10-19 | 2015-10-19 | A beam protection device that is used for big packet of pour steel of continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205057036U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397079A (en) * | 2015-10-19 | 2016-03-16 | 山东钢铁股份有限公司 | Pouring stream protecting device for pouring molten steel through large ladle in continuous casting |
-
2015
- 2015-10-19 CN CN201520813072.8U patent/CN205057036U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105397079A (en) * | 2015-10-19 | 2016-03-16 | 山东钢铁股份有限公司 | Pouring stream protecting device for pouring molten steel through large ladle in continuous casting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105397079A (en) | Pouring stream protecting device for pouring molten steel through large ladle in continuous casting | |
| CN104259448A (en) | Casting method and device of magnesium alloy | |
| CN103586445A (en) | Slag blocking type casting ladle | |
| CN204818038U (en) | Seal structure at long mouth of a river of modified ladle | |
| CN205057036U (en) | A beam protection device that is used for big packet of pour steel of continuous casting | |
| CN205309290U (en) | Immersion nozzle and brick cup structure of middle package | |
| CN105750502A (en) | Pouring system device and pouring method for iron based sand coated cast brake drums | |
| CN204171347U (en) | A kind of device of tundish full guard cast | |
| CN106111906B (en) | It is pressurized anti-slag absorbing pouring basin and preparation method thereof | |
| CN107774913B (en) | Pouring basin for sand mold and manufacturing method thereof | |
| CN101966560B (en) | Bottom casting system of strip sectional inner runners | |
| CN205270835U (en) | Package be built by contract argon blowing device in middle of continuous slab casting | |
| CN203791613U (en) | Casting ladle with open type spout-shaped lining | |
| CN209035415U (en) | A kind of sealed feed trumpet | |
| CN204035550U (en) | The device that continuous casting intermediate inlet is protected with sealed argon-blowing | |
| CN205869398U (en) | Sediment runner basin is prevented inhaling in pressure boost | |
| CN205200530U (en) | Continuous casting is with long mouth of a river | |
| CN209318774U (en) | One kind being suitable for the light-gauge seal protecting device of conticaster | |
| CN204565069U (en) | A kind of vacuum casting device preventing molten steel from splashing | |
| CN201744649U (en) | Protective sleeve pipe provided with thread | |
| CN205324718U (en) | Middle package immersion nozzle prevention of seepage steel brick cup | |
| CN201815628U (en) | Bottom gating system with ingates in strip-shaped cross sections | |
| KR200439112Y1 (en) | Ceramics runner for mold | |
| CN103231047B (en) | A kind of ladle nozzle improving self-opening rate | |
| CN206230019U (en) | A kind of ventilative ring filling pipe end brick cup of continuous casting production disperse formula |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |