CN205673583U - A kind of long-life slab continuous casting submerged nozzle - Google Patents

A kind of long-life slab continuous casting submerged nozzle Download PDF

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Publication number
CN205673583U
CN205673583U CN201620585090.XU CN201620585090U CN205673583U CN 205673583 U CN205673583 U CN 205673583U CN 201620585090 U CN201620585090 U CN 201620585090U CN 205673583 U CN205673583 U CN 205673583U
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China
Prior art keywords
slag line
slag
continuous casting
submersed nozzle
river
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Active
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CN201620585090.XU
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Chinese (zh)
Inventor
刘志远
王重君
程巨广
丁宁
田宝义
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TANGSHAN ZHONGHOU BOARD MATERIALS CO Ltd
Tangshan Iron and Steel Group Co Ltd
Original Assignee
TANGSHAN ZHONGHOU BOARD MATERIALS CO Ltd
Tangshan Iron and Steel Group Co Ltd
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Priority to CN201620585090.XU priority Critical patent/CN205673583U/en
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Abstract

A kind of long-life slab continuous casting submerged nozzle, belongs to sheet billet continuous casting equipment technical field, for realizing being changed without the mouth of a river in the middle of the middle bag use cycle, to reduce accident, to reduce cost.Its technical scheme is: the bottom upper surface of resistance to material of submersed nozzle of the present utility model uses bottom groove design, can play the steel stream of two side openings of equilibrium, the effect of stable crystalline device flow field;Slag lining uses zirconium carbon material, can improve slag line resistant to corrosion degree;The a length of 180mm of slag line, it can be ensured that submersed nozzle insertion depth 100 190mm, uses 4 road slag lines, and can extend the use time is 16 hours.The utility model is reasonable in design, and using effect is good, does not needs to change the mouth of a river in the life cycle management of middle bag, reach the service life identical with middle bag, production accident can be efficiently reduced, it is to avoid fluctuate and mix blank strip because changing the pulling rate bringing at the mouth of a river, the cost of resistance to material can be reduced simultaneously.

Description

A kind of long-life slab continuous casting submerged nozzle
Technical field
The utility model relates to a kind of slab continuous casting submerged nozzle with service life identical with middle bag, belongs to slab Continuous casting installation for casting technical field.
Background technology
Submersed nozzle plays very important effect in continuous casting production process, is used not only for molten steel shunting, all right Play prevent secondary oxidation, stable crystalline device liquid flow field, improve slab quality and prevent the effect such as slag.At casting process In, submersed nozzle is used together with Zhong Bao, and the service life being generally immersed in the formula mouth of a river is 8 hours, and a submersed nozzle makes Using twice slag line, insertion depth 100-140mm, it is 16 hours that middle bag uses the time, and in one, bag uses 2 submersed nozzles, Centre needs mouth of a river of quick-replaceable.But in actual production find, aborning between change the mouth of a river easily produce production accident, And cause the mixed situations such as the mixed base of generation of watering of the fluctuation of casting machine pulling rate, front and back different steel grades, and relatively big to Influence of production, also can improve life Produce cost.Therefore, production fast-developing needs can not be met the service life of current submersed nozzle, it is necessary to change Enter.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of long-life slab continuous casting submerged nozzle, this Submersed nozzle can have the identical use same life-span with middle bag, does not needs to change the mouth of a river in the life cycle management of middle bag, Production accident can be efficiently reduced, and reduce production cost.
The technical scheme solving above-mentioned technical problem is:
A kind of long-life slab continuous casting submerged nozzle, submersed nozzle body profile and inner chamber are square tubular shape, leaching The middle and lower part entering the formula mouth of a river is slag lining, and there are two relative side openings the lower section of slag lining, and its improvements are, under side opening The bottom upper surface of resistance to material of side has bottom groove, and slag line is four road slag lines, the degree of depth that the length of slag line is inserted with submersed nozzle Match.
Above-mentioned long-life slab continuous casting submerged nozzle, described submersed nozzle body uses aluminium zirconium carbon material, entire body Using the refractory fibre parcel of 3mm, slag lining uses zirconium carbon material, a length of 180mm of slag line, edge and slag line lower end on side opening Distance be 100-190mm.
The continuous submersed nozzle of above-mentioned long-life slab, said two side opening inclines to the lower end of submersed nozzle respectively Tiltedly, the center line of two side openings and the angle of submersed nozzle axis lower end are respectively 75 degree.
The beneficial effects of the utility model are:
The bottom upper surface of resistance to material of submersed nozzle of the present utility model uses bottom groove design, can play equilibrium two The steel stream of individual side opening, the effect of stable crystalline device flow field;Slag lining uses zirconium carbon material, can improve slag line resistant to corrosion journey Degree;The a length of 180mm of slag line, it can be ensured that submersed nozzle insertion depth 100-190mm, uses 4 road slag lines, can extend The use time is 16 hours.The utility model is reasonable in design, and using effect is good, does not needs more in the life cycle management of middle bag Change the mouth of a river, reach the service life identical with middle bag, production accident can be efficiently reduced, it is to avoid because changing the pulling rate that the mouth of a river is brought Fluctuation and mixed blank strip go out, and can reduce the cost of resistance to material simultaneously.
Brief description
Fig. 1 is front view of the present utility model;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the A direction view of Fig. 1
Figure mark as follows: aquadag main slide plate face the 1st, iron-clad the 2nd, submersed nozzle body the 3rd, inner chamber the 4th, inwall the 5th, slag line is the 6th, Bottom resistance to material the 7th, side opening the 8th, side opening outer the 9th, the submersed nozzle in bottom, the 10th, the 11st, refractory fibre protects cardboard the 12nd, aquadag sideskid The 13rd, bottom groove 14, face.
Detailed description of the invention
The 6th, the utility model is soaked by the main slide plate face of submersed nozzle body the 3rd, aquadag the 1st, aquadag sideskid face the 13rd, slag line The 11st, enter bottom the formula mouth of a river the 10th, iron-clad the 2nd, refractory fibre protects cardboard 12 to form.
Showing in figure, submersed nozzle body 3 profile and inner chamber 4 are square tubular shape, upper at submersed nozzle body 3 End, aquadag main slide plate face 1 and aquadag sideskid face 13 are connected by slide construction with middle bag, submersed nozzle body 3 Being inner chamber 4 in inwall 5, the middle and lower part of submersed nozzle 3 is slag line 6 position, and there are two relative side openings the lower section at slag line 6 position 8, molten steel is flowed downward out by inner chamber 4, plays shunting action by side opening 8.
Showing in figure, resistance to material 7 upper surface of the bottom below side opening 8 has bottom groove 14, and the design of bottom groove 14 is permissible Play the steel stream of two side openings 8 of equilibrium, the effect of stable crystalline device flow field.
Showing in figure, slag line 6 is four road slag lines, and can extend the use time is 16 hours, at the life cycle management of middle bag In do not need change the mouth of a river, reach the service life identical with middle bag.The degree of depth phase that the length of slag line 6 and submersed nozzle insert Coordinate.The a length of 180mm of slag line 6, on side opening 8, edge and the distance of slag line 6 lower end are 100-190mm, it can be ensured that immersion water Mouth insertion depth.
Showing in figure, two side openings 8 tilt to the lower end of submersed nozzle respectively, the center line of two side openings 8 and immersion The angle of formula nozzle axis lower end is respectively 75 degree.
Submersed nozzle body 3 of the present utility model uses aluminium zirconium carbon material, and entire body uses the refractory fibre 11 of 3mm to wrap Wrapping up in, slag line 6 position uses zirconium carbon material, improves the resistant to corrosion degree of slag line 6.3mm iron-clad the 2nd, 3mm refractory fibre 11 and protection sheet Plate 12 plays a protective role, and prevents from being collided with, and damages internal resistance to material.
The 1st, aquadag sideskid face, aquadag of the present utility model main slide plate face the 13rd, submersed nozzle body the 3rd, slag line the 6th, the end The resistance to material in portion 7 uses isostatic pressed post forming.

Claims (3)

1. a long-life slab continuous casting submerged nozzle, submersed nozzle body (3) and inner chamber (4) are square tubular shape, leaching The middle and lower part entering the formula mouth of a river is slag line (6) position, and there are two relative side openings (8) lower section at slag line (6) position, and its feature exists In: bottom resistance to material (7) upper surface of side opening (8) lower section has bottom groove (14), and slag line (6) is four road slag lines, the length of slag line (6) The degree of depth that degree inserts with submersed nozzle matches.
2. long-life slab continuous casting submerged nozzle according to claim 1, it is characterised in that: described submersed nozzle Body (3) uses aluminium zirconium carbon material, and entire body uses refractory fibre (11) parcel of 3mm, and slag line (6) position uses zirconium carbon material, The a length of 180mm of slag line (6), side opening (8) is upper is 100-190mm along the distance with slag line (6) lower end.
3. long-life slab continuous casting submerged nozzle according to claim 2, it is characterised in that: said two side opening (8) tilting to the lower end of submersed nozzle respectively, the center line of two side openings (8) divides with the angle of submersed nozzle axis lower end It is not 75 degree.
CN201620585090.XU 2016-06-16 2016-06-16 A kind of long-life slab continuous casting submerged nozzle Active CN205673583U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620585090.XU CN205673583U (en) 2016-06-16 2016-06-16 A kind of long-life slab continuous casting submerged nozzle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620585090.XU CN205673583U (en) 2016-06-16 2016-06-16 A kind of long-life slab continuous casting submerged nozzle

Publications (1)

Publication Number Publication Date
CN205673583U true CN205673583U (en) 2016-11-09

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111036891A (en) * 2019-11-29 2020-04-21 浙江科宇金属材料有限公司 Pouring pipe for vertical casting

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111036891A (en) * 2019-11-29 2020-04-21 浙江科宇金属材料有限公司 Pouring pipe for vertical casting

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