CN204504207U - A kind of slab CC tundish working lining - Google Patents
A kind of slab CC tundish working lining Download PDFInfo
- Publication number
- CN204504207U CN204504207U CN201520148458.1U CN201520148458U CN204504207U CN 204504207 U CN204504207 U CN 204504207U CN 201520148458 U CN201520148458 U CN 201520148458U CN 204504207 U CN204504207 U CN 204504207U
- Authority
- CN
- China
- Prior art keywords
- working lining
- side wall
- wall panel
- tundish
- impact zone
- 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
Abstract
The utility model belongs to Ferrous Metallurgy continuous casting production technology field, relate to slab CC tundish working lining, impact zone working lining adopts bottom, prepared by upper segment, impact zone bottom working lining is positioned between turbulence inhibitor (4) and tundish permanent liner (7), adopt ladle working lining to build by laying bricks or stones with rear magnesia carbon brick (11) to form, and at its surface smear one deck coating (5), impact zone top working lining is positioned at the top of ladle working lining with rear magnesia carbon brick (11), comprise right side wall panel (1), left side wall panel (2), end wallboard (3), and right side wall panel, respectively there is a boss (13) outer end of left side wall panel body, boss is met steel direction and is provided with undercut ss, and bag wall working lining beyond impact zone and underwrite lining work all adopt dry materials.The utility model achieves liner in dundish impact zone, slag line is synchronous with the service life of other position working lining, solve slab CC tundish working lining impact zone and the erosion of slag lining dry materials, wash away a heavy difficult problem, the tundish list Bao Lian time of watering reaches 18 ~ 24 hours, improve more than 10 hours on year-on-year basis, reduce the working lining cost of resistance to material more than 50% on year-on-year basis.
Description
Technical field
The utility model belongs to Ferrous Metallurgy continuous casting production technology field, relates to a kind of slab CC tundish working lining, particularly relates to a kind of slab CC tundish impact zone working lining.
Background technology
Slab CC tundish liner is generally made up of permanent liner, working lining, and permanent liner adopts that castable is integrated poured shapingly to be formed, and working lining adopts dry materials vibration moulding to form.The service life of current slab CC tundish working lining is generally 8 ~ 16 hours, and working lining impact zone, slag lining corrode heavy, is the bottleneck problem in restriction liner in dundish service life.Prior art improves the major measure in liner in dundish life-span, one is set up magnesia plate at working lining impact zone dry materials outer surface, two is increase the thickness of working lining slag lining dry materials or improve the material of slag lining dry materials, the subject matter existed or deficiency: tundish builds by laying complex process, adds liner in dundish refractory consumption, cost.
Summary of the invention
Goal of the invention of the present utility model is, for existing slab CC tundish working lining technology Problems existing, a kind of slab CC tundish working lining is provided, this tundish impact area working lining adopts bottom, upper segment preparation method, bottom adopts the rear magnesia carbon brick of ladle working lining to build by laying bricks or stones, a kind of magnesia plate with boss is installed on top, application the utility model makes slab CC tundish working lining impact zone and slag lining dry materials corrode, wash away heavy technical barrier to be resolved simultaneously, achieve liner in dundish impact zone, slag line is synchronous with the service life of other position working lining, the tundish list Bao Lian time of watering reaches 18 ~ 24 hours, improve more than 10 hours on year-on-year basis, reduce the working lining cost of resistance to material more than 50% on year-on-year basis.
A kind of slab CC tundish working lining, it is characterized in that, impact zone working lining comprises impact zone bottom working lining and impact zone top working lining,
Impact zone bottom working lining, is positioned between turbulence inhibitor (4) and tundish permanent liner (7), adopts ladle working lining to build by laying bricks or stones with rear magnesia carbon brick (11) and forms, and at its surface smear one deck coating (5),
Impact zone top working lining is positioned at the top of ladle working lining with rear magnesia carbon brick (11), comprise right side wall panel (1), left side wall panel (2), end wallboard (3), right side wall panel (1) is pasted successively in the right side wall of permanent liner, left side wall panel (2) is pasted in the left side wall of permanent liner, the Nei Tie end, end wallboard (3) of permanent liner, right side wall panel (1) is symmetrical with the cross central line of liner in dundish with left side wall panel (2), end wallboard (3) is held between right side wall panel (1) and left side wall panel (2) in the end clips of permanent liner, and right side wall panel (1), left side wall panel (2) includes body (12) and boss (13), boss (13) is met steel face and is provided with undercut ss.
The setting of boss and undercut ss, its role is to the running route changing steel flow, slow down the kinetic energy of steel flow, flow velocity, block and directly flow to the mouth of a river (9) direction along bag wall working lining (8) to the steel flow in tundish impact area from large bag long nozzle (10) beam, which reduce steel flow washing away bag wall working lining dry materials (8), especially steel flow washing away working lining slag lining dry materials is alleviated, slab CC tundish working lining impact zone and slag lining dry materials are corroded, wash away heavy technical barrier to be resolved simultaneously, achieve liner in dundish impact zone, slag line is synchronous with the service life of other position working lining.
Preferably, identical, symmetrical magnesia prefabricated component sized by right side wall panel (1), left side wall panel (2), right side wall panel (1), left side wall panel (2) are by body (12) and boss (13) composition, and boss (13) is positioned at the outer end of body (12); Body (12) thickness b is 65 ~ 82mm, and the thickness c of boss (13) is 33 ~ 46mm, and the width e of boss (13) is 60 ~ 82mm, and boss (13) is met steel face and is provided with undercut ss, and β is 30 ° ~ 46 °.
Boss thickness c in right side wall panel of the present utility model, left side wall panel, boss width e, boss undercut ss, that those skilled in the art gropes to obtain through optimal design and experiment, the utility model makes the technical barrier that slab CC tundish working lining impact zone and slag lining dry materials corrode, wash away weight be resolved simultaneously, and the tundish list Bao Lian time of watering improves more than 10 hours on year-on-year basis.
Preferably, end wallboard (3) is magnesia prefabricated component, the thickness m of end wallboard (3) is 60 ~ 82mm, rectangle overfall (14) is provided with in the middle of the top of end wallboard (3), the width x of overfall is 500 ~ 602mm, and the height y of overfall is 100 ~ 152mm.
Preferably, ladle working lining is the rear magnesia carbon brick of LF, RH refining ladle working lining slag line with rear magnesia carbon brick (11), through selection, cleaning after, residual thick be 50 ~ 130mm.Waste magnesia carbon brick contains magnesia 60% ~ 90%, carbon 10% ~ 30%, Al
4c
3and other 3 ~ 10%, be weight ratio.
Described coating, refers to the magnesia coating for continuous casting tundish working lining that prior art is produced.Coating is with less aggregate, powder and the cementing agent of particle or additive, is modulated into paste or pulpous state in proportion, a kind of unshape refractory of constructing in the mode of smearing.Preferably, the thickness k smearing the bed of material (5) is 20 ~ 32mm.
Described bag wall working lining dry materials (8), underwrite lining work dry materials (15), refer to the magnesia spinel matter dry materials for continuous casting tundish working lining that prior art is produced.
The utility model also provide a kind of construction fetal membrane (16) with slab CC tundish dry materials working lining with the use of stop gauge, it is characterized in that, stop gauge is made up of screw-thread steel (17) and encapsulant (18), encapsulant (18) is looped around on screw-thread steel (17), length L around encapsulant is the length of bag wall working lining dry materials (8), and the width z around encapsulant is the thickness of bag wall working lining dry materials (8).
The construction fetal membrane (16) of described slab CC tundish dry materials working lining, refer to that prior art prepares the construction mould of continuous casting tundish dry material working lining use, inner chamber hollow structure, shell, according to the cavity shape of continuous casting tundish dry material working lining and size design thereof, adopts heat resisting cast steel to be welded.
The effect of stop gauge is: when using working lining dry materials construction loose tool (16) to carry out the construction of middle handbag wall working lining dry materials (8), two stop gauges are put into respectively the junction (5) of right side wall panel (1), left side wall panel (2) and bag wall working lining dry materials, dry materials is blocked, dry materials is not filled out between two stop gauges, thus build by laying bricks or stones in working lining impact zone bottom and right side wall panel (1), left side wall panel (2) are installed, end wallboard (3) headspace with rear magnesia carbon brick (11) and top.Stop gauge of the present utility model, structure is simple, expense is low, workable, and does not change former tundish dry material working lining construction fetal membrane structure and performance.
Preferably, the external diameter of screw-thread steel (17) is ￠ 32 ~ ￠ 40.
Preferably, encapsulant (18) asbestos cloth of selecting prior art to produce or discarded woven bag.
The utility model also provides a kind of preparation method of slab CC tundish impact zone working lining, comprises the following steps:
1) working lining dry materials construction loose tool (16) prepares:
After clean to working lining dry materials construction loose tool (16) removing surface before construction, oil is evenly brushed to two sidewalls of construction loose tool corresponding to dry materials construction and end wall for subsequent use;
2) tundish underwrite lining work dry materials (15) construction:
The dry materials that prior art is produced is put at the bottom of middle handbag, shakeouts, then fully tamping, and by surface pressure concora crush light.Underwrite lining work (15) thickness a is 45 ~ 65mm;
3) working lining dry materials construction loose tool (16) is placed into above tundish underwrite lining work (15), two stop gauges are put into respectively the junction (6) of right side wall panel (1), left side wall panel (2) and bag wall working lining dry materials, construct loose tool (16) and tundish permanent liner (7) of two stop gauges and working lining dry materials is close to, ensures seamless;
4) handbag wall working lining dry materials (8) construction in the middle of:
Dry materials is not filled out between two stop gauges, for impact zone bag wall working lining headspace, and outside headspace, the dry materials that prior art is produced is put in the gap outside the headspace between the sidewall of working lining dry materials construction loose tool (16) and tundish permanent liner (7), after filler should bed of material process first by loose even, one time depth of packing does not allow more than 150mm, adopts pneumatic pick, according to the even ramming of a definite sequence;
5) the shaping baking of working lining dry materials: 1. with the programming rate of 1.5 ~ 2.0 DEG C/min, by normal temperature evenly, continuous warming is to 120 ~ 150 DEG C: 2. with the programming rate of 1.2 ~ 1.5 DEG C/min, by 120 ~ 150 DEG C evenly, continuous warming is to 200 ~ 230 DEG C; 3. after ceasing fire, cooling 4 ~ 8 hours, proposes working lining dry materials construction loose tool (16) in tundish;
6) turbulence inhibitor (4) is installed, the center of turbulence inhibitor (4) overlaps with large bag long nozzle (10) center line, between turbulence inhibitor (4) and tundish permanent liner (7), ladle working lining rear magnesia carbon brick (11) is adopted to build by laying bricks or stones
7) right side wall panel (1), left side wall panel (2) is pasted in successively in the impact zone permanent liner of ladle working lining with rear magnesia carbon brick (11) top, end wallboard (3), then one deck coating (5) is being smeared with rear magnesia carbon brick (11) upper surface, make to smear the bed of material (5) concordant with the upper surface of turbulence inhibitor (4), the thickness k smearing the bed of material (5) is 20 ~ 32mm;
8) at working lining impact zone right side wall panel (1), left side wall panel (2) and bag wall working lining dry materials junction (6), coating is adopted to smear into streamlined, natural Health preservation 4 ~ 8 hours, the so far preparation of slab CC tundish working lining completes.
The beneficial effects of the utility model are:
1) the utility model will be provided with the right side wall panel of boss, left side wall panel and be provided with the end wallboard of overfall as top, tundish impact area working lining, on slab CC tundish after application, achieve unforeseeable technique effect: slab CC tundish working lining impact zone and slag lining dry materials are corroded, wash away heavy technical barrier to be resolved simultaneously, when not increasing the thickness of working lining slag lining dry materials and not improving slag lining dry materials material, average single Bao Lian of slab CC tundish time of watering is made to bring up to 18 ~ 24 hours by 8 ~ 16 hours, improve more than 10 hours on year-on-year basis.
2) ladle working lining is used for building slab CC tundish impact zone bottom working lining by laying bricks or stones with rear magnesia carbon brick by the utility model, reduce further the cost of slab CC tundish working lining, make the cost of resistance to material of slab CC tundish working lining reduce by more than 50% on year-on-year basis.
3) the utility model carries out direct circulation reutilization technology to the waste magnesia carbon brick after ladle working lining use, meet the industrial policy of national recycling economy, energy-saving and emission-reduction, both save mineral resources, decrease environmental pollution, again reduce steel-making cost, make low-cost competition advantage to iron and steel enterprise, Resources for construction economizing type, environment-friendly enterprise have important strategic importance.
After the utility model is applied on Laiwu steel enterprise Yin Shan shaped steel Co., Ltd steel mill slab CC tundish, the technical barrier that slab CC tundish working lining impact zone and slag lining dry materials corrode, wash away weight is resolved simultaneously, average single Bao Lian time of watering of slab CC tundish brought up to 22 hours by 10 hours, improve 12 hours on year-on-year basis, reduce the continuous casting production cost of resistance to material 64.5% on year-on-year basis.
Accompanying drawing explanation
Fig. 1 is the utility model slab CC tundish working lining structure top view;
Fig. 2 is the utility model slab CC tundish working lining impact zone A-A profile;
Fig. 3 is the utility model slab CC tundish working lining impact zone right side wall panel structural representation, and wherein A is front view, B is top view;
Fig. 4 is the utility model slab CC tundish working lining impact zone left side wall panel structural representation, and wherein A is front view, B is top view;
Fig. 5 is the utility model slab CC tundish working lining impact zone end wall plate structure schematic diagram, and wherein A is front view, B is top view;
Fig. 6 is the utility model slab CC tundish working lining dry materials construction fetal membrane and stop gauge scheme of installation.
Wherein, 1-working lining impact zone right side wall panel, 2-working lining impact zone left side wall panel, 3-working lining impact zone end wallboard, 4-turbulence inhibitor, 5-smears the bed of material, 6-working lining impact zone right side wall panel, left side wall panel and bag wall working lining dry materials junction, 7-tundish permanent liner, 8-bag wall working lining dry materials, the 9-mouth of a river, the large bag long nozzle of 10-, the rear magnesia carbon brick of 11-ladle working lining, 12-working lining impact zone right side wall panel, the body of left side wall panel, 13-working lining impact zone right side wall panel, boss in left side wall panel, overfall on the wallboard of 14-working lining impact zone end, 15-underwrite lining work dry materials, 16-working lining dry materials construction loose tool, 17-screw-thread steel, 18-encapsulant.
Detailed description of the invention
Following examples further illustrate the installation method of utility model, but the utility model is not limited thereto.
Embodiment 1:
Shown in Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, a kind of slab CC tundish working lining, it is characterized in that, impact zone working lining adopts bottom, upper segment preparation method, impact zone bottom working lining, between turbulence inhibitor 4 and tundish permanent liner 7, adopts ladle working lining to build by laying bricks or stones with rear magnesia carbon brick 11 and forms, and at its surface smear one deck coating 5
Impact zone top working lining is positioned at the top of ladle working lining with rear magnesia carbon brick 11, comprise right side wall panel 1, left side wall panel 2, end wallboard 3, right side wall panel 1 is pasted successively in the right side wall of permanent liner, left side wall panel 2 is pasted in the left side wall of permanent liner, Nei Tie end, the end wallboard 3 of permanent liner, right side wall panel 1 is symmetrical with the cross central line of liner in dundish with left side wall panel 2, end wallboard 3 is held between right side wall panel 1 and left side wall panel 2 in the end clips of permanent liner, and right side wall panel 1, left side wall panel 2 includes body 12 and boss 13), boss (13) is met steel face and is provided with undercut ss.
Identical sized by described right side wall panel 1, left side wall panel 2, the symmetrical magnesia prefabricated component of boss, body 12 thickness b is 65mm, and the thickness c of boss 13 is 35mm, and the width e of boss 13 is 60mm, and steel face met by boss 13, and to be provided with undercut ss be 30 °.
Described end wallboard 3 is magnesia prefabricated component, and the thickness m of end wallboard 3 is 60mm, and be provided with rectangle overfall 14 in the middle of the top of end wallboard 3, the width x of overfall is 500mm, and the height y of overfall is 100mm.
The described thickness k smearing the bed of material 5 is 20mm.
Described ladle working lining is the rear magnesia carbon brick of LF, RH refining ladle working lining slag line with rear magnesia carbon brick 11, through selection, cleaning after, residual thick be 50 ~ 130mm.Waste magnesia carbon brick contains magnesia 60% ~ 90%, carbon 10% ~ 30%, Al
4c
3and other 3 ~ 10%, be weight ratio.
Described coating, refers to the magnesia coating for continuous casting tundish working lining that prior art is produced.Coating is with less aggregate, powder and the cementing agent of particle or additive, is modulated into paste or pulpous state in proportion, a kind of unshape refractory of constructing in the mode of smearing.
Described bag wall working lining dry materials 8, underwrite lining work dry materials 15, refer to the magnesia spinel matter dry materials for continuous casting tundish working lining that prior art is produced.
The utility model also provide a kind of construction fetal membrane 16 with slab CC tundish dry materials working lining with the use of stop gauge, it is characterized in that, stop gauge is made up of screw-thread steel 17 and encapsulant 18, encapsulant 18 is looped around on screw-thread steel 17, length L around encapsulant is the length of bag wall working lining dry materials 8, and the width z around encapsulant is the thickness of bag wall working lining dry materials 8.
The effect of stop gauge is: use working lining dry materials construction loose tool 16 carry out middle handbag wall working lining dry materials 8 construct time, two stop gauges are put into respectively the junction 5 of right side wall panel 1, left side wall panel 2 and bag wall working lining dry materials, dry materials is blocked, dry materials is not filled out between two stop gauges, thus build by laying bricks or stones by rear magnesia carbon brick 11 and top installation right side wall panel 1, left side wall panel 2 in working lining impact zone bottom, end wallboard 3 headspace.Stop gauge of the present utility model, structure is simple, expense is low, workable, and does not change former tundish dry material working lining construction fetal membrane structure and performance.
The external diameter of described screw-thread steel 17 is ￠ 32.
The asbestos cloth that described encapsulant 18 selects prior art to produce.
The utility model also provides a kind of preparation method of slab CC tundish working lining, comprises the following steps:
1) working lining dry materials construction loose tool 16 prepares:
After clean to working lining dry materials construction loose tool 16 removing surface before construction, oil is evenly brushed to two sidewalls of construction loose tool corresponding to dry materials construction and end wall for subsequent use;
2) tundish underwrite lining work dry materials 15 is constructed:
The dry materials that prior art is produced is put at the bottom of middle handbag, shakeouts, then fully tamping, and by surface pressure concora crush light.Underwrite lining work 15 thickness a is 45mm;
3) working lining dry materials construction loose tool 16 is placed into above tundish underwrite lining work 15, two stop gauges are put into respectively the junction 5 of right side wall panel 1, left side wall panel 2 and bag wall working lining dry materials, construct loose tool 16 and tundish permanent liner 7 of two stop gauges and working lining dry materials is close to, ensures seamless;
4) in the middle of, handbag wall working lining dry materials 8 is constructed:
Dry materials is not filled out between two stop gauges, for impact zone bag wall working lining headspace, and outside headspace, the dry materials that prior art is produced is put in the gap outside the headspace between the sidewall of working lining dry materials construction loose tool 16 and tundish permanent liner 7, after filler should bed of material process first by loose even, one time depth of packing does not allow more than 150mm, adopts pneumatic pick, according to the even ramming of a definite sequence;
5) the shaping baking of working lining dry materials: 1. with the programming rate of 1.5 DEG C/min, by normal temperature evenly, continuous warming is to 120 DEG C: 2. with the programming rate of 1.2 DEG C/min, by 120 DEG C evenly, continuous warming is to 200 DEG C; 3. cooling 4 hours after ceasing fire, proposes working lining dry materials construction loose tool 16 in tundish;
6) turbulence inhibitor 4 is installed, and the center of turbulence inhibitor 4 overlaps with large bag long nozzle 10 center line, between turbulence inhibitor 4 and tundish permanent liner 7, adopts the rear magnesia carbon brick 11 of ladle working lining to build by laying bricks or stones,
7) right side wall panel 1, left side wall panel 2 is pasted in successively in the impact zone permanent liner of ladle working lining with rear magnesia carbon brick 11 top, end wallboard 3, then one deck coating 5 is smeared at rear magnesia carbon brick 11 upper surface of ladle working lining, make to smear the bed of material 5 concordant with the upper surface of turbulence inhibitor 4, the thickness k smearing the bed of material 5 is 20mm;
8) in working lining impact zone right side wall panel 1, left side wall panel 2 and bag wall working lining dry materials junction 6, adopt coating to smear into streamlined, natural Health preservation 4 hours, the preparation of slab CC tundish working lining completes.
Embodiment 2
Other are with embodiment 1, and difference is:
The body 12 thickness b of described right side wall panel 1, left side wall panel 2 is 82mm, and the thickness c of boss 13 is 46mm, and the width e of boss 13 is 80mm, and steel face met by boss 13, and to be provided with undercut ss be 45 °.
The thickness m of described end wallboard 3 is 82mm, and the width x of overfall is 602mm, and the height y of overfall is 152mm.
The described thickness k smearing the bed of material 5 is 32mm.
The external diameter of described screw-thread steel 17 is ￠ 40.
Discarded woven bag selected by described encapsulant 18.
Utility model also provides a kind of preparation method of slab CC tundish working lining, comprises the following steps:
1) working lining dry materials construction loose tool 16 prepares:
After clean to working lining dry materials construction loose tool 16 removing surface before construction, oil is evenly brushed to two sidewalls of construction loose tool corresponding to dry materials construction and end wall for subsequent use;
2) tundish underwrite lining work dry materials 15 is constructed:
The dry materials that prior art is produced is put at the bottom of middle handbag, shakeouts, then fully tamping, and by surface pressure concora crush light.Underwrite lining work 15 thickness a is 65mm;
3) working lining dry materials construction loose tool 16 is placed into above tundish underwrite lining work 15, two stop gauges are put into respectively the junction 6 of right side wall panel 1, left side wall panel 2 and bag wall working lining dry materials, construct loose tool 16 and tundish permanent liner 7 of two stop gauges and working lining dry materials is close to, ensures seamless;
4) in the middle of, handbag wall working lining dry materials 8 is constructed:
Dry materials is not filled out between two stop gauges, for impact zone bag wall working lining headspace, and outside headspace, the dry materials that prior art is produced is put in the gap outside the headspace between the sidewall of working lining dry materials construction loose tool 16 and tundish permanent liner 7, after filler should bed of material process first by loose even, one time depth of packing does not allow more than 150mm, adopts pneumatic pick, according to the even ramming of a definite sequence;
5) the shaping baking of working lining dry materials: 1. with the programming rate of 2.0 DEG C/min, by normal temperature evenly, continuous warming is to 150 DEG C: 2. with the programming rate of 1.5 DEG C/min, by 150 DEG C evenly, continuous warming is to 230 DEG C; 3. cooling 8 hours after ceasing fire, proposes working lining dry materials construction loose tool 16 in tundish;
6) turbulence inhibitor 4 is installed, and the center of turbulence inhibitor 4 overlaps with large bag long nozzle 10 center line, between turbulence inhibitor 4 and tundish permanent liner 7, adopts the rear magnesia carbon brick 11 of ladle working lining to build by laying bricks or stones,
7) right side wall panel 1, left side wall panel 2 is pasted in successively in the impact zone permanent liner of ladle working lining with rear magnesia carbon brick 11 top, end wallboard 3, then one deck coating 5 is smeared at rear magnesia carbon brick 11 upper surface of ladle working lining, make to smear the bed of material 5 concordant with the upper surface of turbulence inhibitor 4, the thickness k smearing the bed of material 5 is 32mm;
8) in working lining impact zone right side wall panel 1, left side wall panel 2 and bag wall working lining dry materials junction 6, adopt coating to smear into streamlined, natural Health preservation 8 hours, the so far preparation of slab CC tundish working lining completes.
Embodiment 3
Other are with embodiment 1, and difference is:
The body 12 thickness b of described right side wall panel 1, left side wall panel 2 is 70mm, and the thickness c of boss 13 is 40mm, and the width e of boss 13 is 70mm, and steel face met by boss 13, and to be provided with undercut ss be 40 °.
The thickness m of described end wallboard 3 is 70mm, and the width x of overfall 14 is 550mm, and the height y of overfall 14 is 120mm.
The described thickness k smearing the bed of material 5 is 25mm.
The external diameter of described screw-thread steel 17 is ￠ 36.
The preparation method of slab CC tundish working lining, comprises the following steps:
1) working lining dry materials construction loose tool 16 prepares:
After clean to working lining dry materials construction loose tool 16 removing surface before construction, oil is evenly brushed to two sidewalls of construction loose tool corresponding to dry materials construction and end wall for subsequent use;
2) tundish underwrite lining work dry materials 15 is constructed:
The dry materials that prior art is produced is put at the bottom of middle handbag, shakeouts, then fully tamping, and by surface pressure concora crush light.Underwrite lining work 15 thickness a is 55mm;
3) working lining dry materials construction loose tool 16 is placed into above tundish underwrite lining work 15, two stop gauges are put into respectively the junction 5 of right side wall panel 1, left side wall panel 2 and bag wall working lining dry materials, construct loose tool 16 and tundish permanent liner 7 of two stop gauges and working lining dry materials is close to, ensures seamless;
4) in the middle of, handbag wall working lining dry materials 8 is constructed:
Dry materials is not filled out between two stop gauges, for impact zone bag wall working lining headspace, and outside headspace, the dry materials that prior art is produced is put in the gap outside the headspace between the sidewall of working lining dry materials construction loose tool 16 and tundish permanent liner 7, after filler should bed of material process first by loose even, one time depth of packing does not allow more than 150mm, adopts pneumatic pick, according to the even ramming of a definite sequence;
5) the shaping baking of working lining dry materials: 1. with the programming rate of 1.7 DEG C/min, by normal temperature evenly, continuous warming is to 135 DEG C: 2. with the programming rate of 1.3 DEG C/min, by 135 DEG C evenly, continuous warming is to 215 DEG C; 3. cooling 6 hours after ceasing fire, proposes working lining dry materials construction loose tool 16 in tundish;
6) turbulence inhibitor 4 is installed, and the center of turbulence inhibitor 4 overlaps with large bag long nozzle 10 center line, between turbulence inhibitor 4 and tundish permanent liner 7, adopts the rear magnesia carbon brick 11 of ladle working lining to build by laying bricks or stones,
7) right side wall panel 1, left side wall panel 2 is pasted in successively in the impact zone permanent liner of ladle working lining with rear magnesia carbon brick 11 top, end wallboard 3, then one deck coating 5 is smeared at rear magnesia carbon brick 11 upper surface of ladle working lining, make to smear the bed of material 5 concordant with the upper surface of turbulence inhibitor 4, the thickness k smearing the bed of material 5 is 25mm;
8) in working lining impact zone right side wall panel 1, left side wall panel 2 and bag wall working lining dry materials junction 6, adopt coating to smear into streamlined, natural Health preservation 6 hours, the so far preparation of slab CC tundish working lining completes.
Claims (6)
1. a slab CC tundish working lining, is characterized in that, impact zone working lining comprises impact zone bottom working lining and impact zone top working lining,
Impact zone bottom working lining, is positioned between turbulence inhibitor (4) and tundish permanent liner (7), adopts ladle working lining to build by laying bricks or stones with rear magnesia carbon brick (11) and forms, and at its surface smear one deck coating (5),
Impact zone top working lining is positioned at the top of ladle working lining with rear magnesia carbon brick (11), comprise right side wall panel (1), left side wall panel (2), end wallboard (3), right side wall panel (1) is pasted successively in the right side wall of permanent liner, left side wall panel (2) is pasted in the left side wall of permanent liner, the Nei Tie end, end wallboard (3) of permanent liner, right side wall panel (1) is symmetrical with the cross central line of liner in dundish with left side wall panel (2), end wallboard (3) is held between right side wall panel (1) and left side wall panel (2) in the end clips of permanent liner, and right side wall panel (1), left side wall panel (2) includes body (12) and boss (13), boss (13) is met steel face and is provided with undercut ss.
2. slab CC tundish working lining as claimed in claim 1, it is characterized in that, identical, symmetrical magnesia prefabricated component sized by right side wall panel (1), left side wall panel (2), right side wall panel (1), left side wall panel (2) are by body (12) and boss (13) composition, and boss (13) is positioned at the outer end of body (12); Body (12) thickness b is 65 ~ 82mm, and the thickness c of boss (13) is 33 ~ 46mm, and the width e of boss (13) is 60 ~ 82mm, and boss (13) is met steel face and is provided with undercut ss, and β is 30 ° ~ 46 °.
3. slab CC tundish working lining as claimed in claim 1 or 2, it is characterized in that, end wallboard (3) is magnesia prefabricated component, the thickness m of end wallboard (3) is 60 ~ 82mm, rectangle overfall (14) is provided with in the middle of the top of end wallboard (3), the width x of overfall is 500 ~ 602mm, and the height y of overfall is 100 ~ 152mm.
4. slab CC tundish working lining as claimed in claim 1 or 2, it is characterized in that, the thickness k smearing the bed of material (5) is 20 ~ 32mm.
5. one kind with the construction fetal membrane (16) of the slab CC tundish working lining described in any one of Claims 1 to 4 with the use of stop gauge, it is characterized in that, stop gauge is made up of screw-thread steel (17) and encapsulant (18), encapsulant (18) is looped around on screw-thread steel (17), length L around encapsulant is the length of bag wall working lining dry materials (8), and the width z around encapsulant is the thickness of bag wall working lining dry materials (8).
6. stop gauge as claimed in claim 5, it is characterized in that, encapsulant (18) selects asbestos cloth or discarded woven bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520148458.1U CN204504207U (en) | 2015-03-16 | 2015-03-16 | A kind of slab CC tundish working lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520148458.1U CN204504207U (en) | 2015-03-16 | 2015-03-16 | A kind of slab CC tundish working lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204504207U true CN204504207U (en) | 2015-07-29 |
Family
ID=53702212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520148458.1U Active CN204504207U (en) | 2015-03-16 | 2015-03-16 | A kind of slab CC tundish working lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204504207U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722746A (en) * | 2015-03-16 | 2015-06-24 | 山东钢铁股份有限公司 | Slab continuous casting tundish working lining and manufacturing method thereof |
| CN113000805A (en) * | 2021-02-23 | 2021-06-22 | 包头钢铁（集团）有限责任公司 | Production method for increasing continuous casting furnace number of billet continuous casting machine |
-
2015
- 2015-03-16 CN CN201520148458.1U patent/CN204504207U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104722746A (en) * | 2015-03-16 | 2015-06-24 | 山东钢铁股份有限公司 | Slab continuous casting tundish working lining and manufacturing method thereof |
| CN113000805A (en) * | 2021-02-23 | 2021-06-22 | 包头钢铁（集团）有限责任公司 | Production method for increasing continuous casting furnace number of billet continuous casting machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102699316B (en) | Method for preparing beam blank continuous casting machine tundish working lining by using construction tire film of beam blank continuous casting machine tundish working lining | |
| CN103736985B (en) | A kind of ladle working lining and slag lining thereof build by laying method | |
| CN101913888A (en) | Pouring material for forsterite tundish slag stop wall and production process thereof | |
| CN104722746B (en) | A kind of slab CC tundish working lining and preparation method thereof | |
| CN102151822B (en) | Continuous casting tundish and manufacturing method thereof | |
| CN204504207U (en) | A kind of slab CC tundish working lining | |
| CN201832967U (en) | Slag weir made of composite material for continuous casting tundish | |
| CN103785820B (en) | A kind of ladle permanent liner and preparation method thereof | |
| CN104759611A (en) | Steel ladle composite working lining and repairing method for slag line position thereof | |
| CN204997060U (en) | Pushing off slag felt is used in pouring | |
| CN203917892U (en) | Long-life tundish | |
| CN103658552B (en) | A kind of large cast steel support roller Integral casting die system and casting method | |
| CN206425545U (en) | A kind of ladle wall working lining | |
| CN203076574U (en) | Steel ladle pouring slag line underlayer | |
| CN202639315U (en) | Sketch blank continuous caster tundish working lining and construction embryonic membrane thereof | |
| CN110180996B (en) | Method for eliminating cracks generated in gravity casting | |
| CN104451008A (en) | Construction method for automatically-flowing refractory castable of blast furnace | |
| CN204545398U (en) | A kind of ladle compound working lining | |
| CN202804168U (en) | Reinforced ladle lining | |
| CN208374194U (en) | A kind of combined type ladle lashed area prefabricated section brick | |
| CN203695941U (en) | Steel ladle working lining | |
| CN204975304U (en) | KR stirs hot metal bottle | |
| CN2516294Y (en) | Continuous casting tundish impact groove | |
| CN2623381Y (en) | Continuous casting impact groove of pouring basket | |
| CN207086846U (en) | A kind of intermediate channel erosion control sand refractory brick apparatus for pouring |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |