CN208495791U - A kind of mouth of a river adapting to the Metal in Tundish degree of superheat - Google Patents
A kind of mouth of a river adapting to the Metal in Tundish degree of superheat Download PDFInfo
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- CN208495791U CN208495791U CN201820736507.7U CN201820736507U CN208495791U CN 208495791 U CN208495791 U CN 208495791U CN 201820736507 U CN201820736507 U CN 201820736507U CN 208495791 U CN208495791 U CN 208495791U
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Abstract
The utility model belongs to technical field of ferrous metallurgy, in particular, the utility model relates to a kind of mouths of a river for adapting to the Metal in Tundish degree of superheat.The mouth of a river is made of mouth of a river ontology and mouth of a river housing, mouth of a river housing can be assembled to the ontology of the mouth of a river, it can also be removed from the ontology of the mouth of a river, mouth of a river ontology is in addition to it can play the conventional func at the mouth of a river, it can also play the role of accelerating mouth of a river heat dissipation, mouth of a river housing can play the role of that the mouth of a river is delayed to radiate, and mouth of a river ontology and mouth of a river housing are used cooperatively to play and adjust the Metal in Tundish degree of superheat.By increasing or reducing the quantity of mouth of a river housing fixed on the outer wall of the mouth of a river, the radiating rate at the mouth of a river can be speeded or be slowed down, improves slab quality and improves casting machine yield.
Description
Technical field
The utility model belongs to technical field of ferrous metallurgy, in particular, the utility model relates to one kind to adapt to centre
The mouth of a river of baotou steel water superheat.
Background technique
The suitable degree of superheat of molten steel in bakie in continuous casting is to guarantee that steel-smelting-continuous casting manufacturing technique is stable, slab quality is stable
Key factor promotes the isometric crystalline region of slab to increase when the control of the Metal in Tundish degree of superheat is suitable, continuous casting billet structure compact structure,
Center segregation of casting blank and loose, improvement slab quality and the yield for improving casting machine, molten steel temperature in tundish are advantageously reduced in this way
The development that can aggravate continuous casting billet column crystal when excessively high leads to serious center segregation problem, and casting blank shell can also be thinned and increases
The danger of bleedout will cause the danger of continuous casting process interruption, therefore on the contrary, the too low fluidity molten steel of molten steel temperature in tundish is poor
Metal in Tundish degree of superheat stability contorting is of great significance in suitable range.
CN102228986A discloses a kind of tundish with electromagnetism heating nozzle, is by being mounted with spy in backpack body bottom
The different electromagnetic heating mouth of a river forms the tundish that can adjust and control mouth of a river stream temperature；As needed one can be installed at packet bottom
Or multiple electromagnetic heating mouths of a river, form the tundish for capableing of each mouth of a river stream temperature of independent control；The Tundish Heating is high-efficient,
Independently it can adjust and control to beam temperature is respectively poured, realize best cast temperature, prevent nozzle blocking, reach low overheat and pour
Casting, the purpose for improving slab quality；The tundish can be widely used for metallurgical continuous casting production, especially multithread, multithread big cross section, surpass
The production of big cross section continuous casting billet, but since the electromagnetic heating mouth of a river can only be antipyretic to molten steel progress, molten steel cannot be cooled down, it should
Technology provide the tundish with electromagnetism heating nozzle can not be excessively high to temperature molten steel carry out temperature adjustment.
In continuous casting, due to the influence of molten steel natural heat dissipation into air in ladle, tundish, every furnace pouring molten steel
The temperature of early period can be 10~15 DEG C higher than being poured the temperature in latter stage, and 10~15 DEG C of temperature is had in the casting cycle of every furnace molten steel
Fluctuation.Due to the deficiency of temperature control precision when refining is tapped, steel temperature also will appear 2~5 DEG C on the continuous casting between different heats
Fluctuation.Without (that is to say degree of superheat wave for the fluctuation of these molten steel temperature in tundish in the existing continuous casting technology announced at present
It is dynamic) solution to the problem.
Summary of the invention
In view of the above problems, the utility model provides a kind of mouth of a river for adapting to the Metal in Tundish degree of superheat and its user
Method, the mouth of a river are made of mouth of a river ontology and mouth of a river housing, and mouth of a river housing can be assembled to the ontology of the mouth of a river, can also be from the ontology of the mouth of a river
It removes, mouth of a river ontology is in addition to it can play the conventional func at the mouth of a river, moreover it is possible to play the role of accelerating mouth of a river heat dissipation, mouth of a river housing can rise
To the effect for delaying the mouth of a river to radiate, mouth of a river ontology and mouth of a river housing are used cooperatively the work that can play the adjusting Metal in Tundish degree of superheat
With.
The utility model provides a kind of mouth of a river ontology for adapting to the Metal in Tundish degree of superheat, on the outer wall of mouth of a river ontology 1
It is machined with 20~80 ring uplifts.
The utility model also provides a kind of mouth of a river housing for adapting to the Metal in Tundish degree of superheat, and the section of mouth of a river housing is
The outer surface of semicircle shape, mouth of a river housing is smooth half-round tubular, and the inner surface of mouth of a river housing has ring-shaped depression.
The utility model also provides a kind of mouth of a river for adapting to the Metal in Tundish degree of superheat, by mouth of a river ontology and mouth of a river housing
Composition, mouth of a river housing are assembled on the ontology of the mouth of a river.Upper ring-shaped depression is covered outside the mouth of a river and the annular on the mouth of a river body outer wall is grand
It rises and is adapted.
Preferably, ring uplift is machined on the outer wall of the mouth of a river ontology to increase cooling surface product, the height of ring uplift
Degree H is 5~15mm, and the width A of ring uplift is 5~15mm, and the spacing distance between every two ring uplift is 5~15mm,
In the use process of the mouth of a river, due to the expansion of cooling surface product, and radiating rate is directly proportional to cooling surface product, and the mouth of a river is into air
Radiating rate is speeded, and can solve the problems, such as that molten steel temperature in tundish is high.As shown in Figure 1 and Figure 2.
It is ring-shaped groove 3 between every two ring uplifts 2, the depth H of ring-shaped groove 3 is 5~15mm, ring-shaped groove 3
Width B is 5~15mm.
Compared to the straight barrel type mouth of a river of smooth outer surface, the surface area of mouth of a river body outer wall provided by the utility model increases
1~3 times, in the use process of the mouth of a river, since cooling surface product expands 1~3 times, mouth of a river radiating rate into air speeds 1~3
Times, it can solve the problems, such as that molten steel temperature in tundish is high.
The mouth of a river also configures the mouth of a river housing that several sections are semicircle shape, as shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, water simultaneously
The length of mouth housing is the 10%~70% of 1 length of mouth of a river ontology, several mouth of a river housings can be fixed to water by combination installation
On the outer wall of mouth ontology, heat insulation effect is played.
Preferably, the material of mouth of a river housing is asbestos board, Determination of Asbestos >=70% in asbestos board.The section of mouth of a river housing
Outer surface for semicircle shape, mouth of a river housing is smooth half-round tubular, and the inner surface of mouth of a river housing has ring-shaped depression.Mouth of a river housing 5
On ring-shaped depression 7 and the mouth of a river body outer wall on ring uplift 2 be adapted, the two shape is complementary, can combine closely.The mouth of a river
The ring-shaped groove 3 on annular protrusion 6 and the mouth of a river body outer wall on housing 5 is adapted, and the two shape is complementary, can closely tie
It closes, the ring uplift 2, annular ditch groove 3 on the body outer wall of the mouth of a river can be respectively embedded in ring-shaped depression 7, ring on mouth of a river housing 5
In shape protrusion 6.
Preferably, the depth h of ring-shaped depression is 5~15mm, and the broadband a of ring-shaped depression is 5~15mm, and every two annular is recessed
Spacing distance between falling into is 5~15mm, and upper ring-shaped depression and the ring uplift phase on the mouth of a river body outer wall are covered outside the mouth of a river
It adapts to, the ring uplift on the body outer wall of the mouth of a river, which can be embedded in outside the mouth of a river, to be covered in upper ring-shaped depression.Preferably, every two annular
It is annular protrusion 6 between recess 7, the height h of annular protrusion 6 is 5~15mm, and the width b of annular protrusion 6 is 5~15mm.
Each and every one several mouth of a river housings 5 can be fixed on the body outer wall of the mouth of a river by combination installation, play heat insulation effect.The mouth of a river
The outer surface of housing is smooth half-round tubular, is outside the mouth of a river of semicircle shape by several sections if molten steel temperature in tundish is low
Set is mounted on the outer wall of the mouth of a river, and the ring uplift on the body outer wall of the mouth of a river is embedded into the ring-shaped depression of mouth of a river housing inner surface,
The smooth half-round tubular outer surface of mouth of a river housing becomes the cooling outer surface in the mouth of a river, since cooling surface product becomes smaller, and asbestos board
Insulation effect it is good, radiating rate of the mouth of a river into air is slack-off, can solve the problems, such as that molten steel temperature in tundish is low.
Preferably, the distance of bottom to the mouth of a river outer jacket surface of mouth of a river housing inner surface ring-shaped depression is mouth of a river housing
Thickness, mouth of a river housing with a thickness of the 10~20% of mouth of a river body thickness.
There is the handle of asbestos board matter in the outer surface of mouth of a river housing, and handle can be as stress of mouth of a river housing when clamped
Point.
The fixed form of mouth of a river housing are as follows: mouth of a river housing is fixed on mouth of a river outer wall by the spring using steel wire or with buckle
On.
In the use process of the mouth of a river, if the temperature of Metal in Tundish is high, reduce outside the mouth of a river fixed on the body outer wall of the mouth of a river
The quantity of set increases the quantity of mouth of a river housing fixed on the body outer wall of the mouth of a river if the temperature of Metal in Tundish is low.
The advantages of the utility model: using technology provided by the utility model, solid on the outer wall of the mouth of a river by increasing or reducing
The quantity of fixed mouth of a river housing, can speed or slow down the radiating rate at the mouth of a river, to adapt to the fluctuation of molten steel temperature in tundish, make to tie
The temperature wave momentum of molten steel is reduced in brilliant device, realizes constant temperature casting, can play and the isometric crystalline region of slab is promoted to increase, reduce slab
Center segregation and loose, improve slab quality and improve the effect of casting machine yield.
Detailed description of the invention
Fig. 1 is a kind of mouth of a river ontology the schematic diagram of the section structure for adapting to the Metal in Tundish degree of superheat.
Fig. 2 is a kind of mouth of a river ontology top view for adapting to the Metal in Tundish degree of superheat.
Fig. 3 is the schematic diagram of the section structure of mouth of a river housing.
Fig. 4 is the main view of mouth of a river housing.
Fig. 5 is the top view of mouth of a river housing.
Fig. 6 is the left view of mouth of a river housing.
Wherein 1 are as follows: mouth of a river ontology, 2 are as follows: the ring uplift on the body outer wall of the mouth of a river, 3: the annular on the body outer wall of the mouth of a river
Groove, 4 are as follows: mouth of a river slag line layer, 5 are as follows: mouth of a river housing, 6 be that upper annular protrusion is covered outside the mouth of a river, 7 are as follows: covered outside the mouth of a river upper annular
Recess.
Specific embodiment
Using mouth of a river ontology as shown in Figure 1 and Figure 2, it is grand that 20~80 annulars are wherein machined on the outer wall of mouth of a river ontology 1
2 are played, the height H of ring uplift 2 is 5~15mm, and the width A of ring uplift 2 is 5~15mm, is between every two ring uplifts 2
Ring-shaped groove 3, the depth H of ring-shaped groove 3 are 5~15mm, and the width B of ring-shaped groove 3 is 5~15mm.
Compared to the straight barrel type mouth of a river of smooth outer surface, the surface area of mouth of a river body outer wall provided by the utility model increases
1~3 times, in the use process of the mouth of a river, since cooling surface product expands 1~3 times, mouth of a river radiating rate into air speeds 1~3
Times, it can solve the problems, such as that molten steel temperature in tundish is high.
Using such as Fig. 3, Fig. 4, Fig. 5, mouth of a river housing 5 shown in fig. 6, the length of mouth of a river housing 5 is 1 length of mouth of a river ontology
10%~70%, the material of mouth of a river housing 5 is asbestos board, and Determination of Asbestos >=70% in asbestos board, the section of mouth of a river housing 5 is
The outer surface of semicircle shape, mouth of a river housing 5 is smooth half-round tubular, and the inner surface of mouth of a river housing 5 has ring-shaped depression 7, ring-shaped depression 7
Depth h be 5~15mm, it is annular protrusion 6, ring between every two ring-shaped depression 7 that the width a of ring-shaped depression 7, which is 5~15mm,
The height h of shape protrusion 6 is 5~15mm, and the width b of annular protrusion 6 is 5~15mm, the ring-shaped depression 7 on mouth of a river housing 5 with should
Ring uplift 2 on the body outer wall of the mouth of a river is adapted, and the two shape is complementary, can be combined closely.Annular protrusion on mouth of a river housing 5
6 are adapted with the ring-shaped groove 3 on the mouth of a river body outer wall, and the two shape is complementary, can combine closely, on the body outer wall of the mouth of a river
Ring uplift 2, annular ditch groove 3 can be respectively embedded in the ring-shaped depression 7 on mouth of a river housing 5, in annular projection 6.
Each and every one several mouth of a river housings 5 can be fixed on the body outer wall of the mouth of a river by combination installation, play heat insulation effect.In if
Between Baogang's coolant-temperature gage it is low when, by 2~14 sections be semicircle shape mouth of a river housing 5 combination be mounted on the body outer wall of the mouth of a river, water
Ring-shaped depression 7, the annular projection 6 of mouthful 5 inner surface of housing are respectively embedded in ring uplift 2 on the body outer wall of the mouth of a river, annular groove
In slot 3, the smooth half-round tubular outer surface of mouth of a river housing 5 becomes the cooling outer surface in the mouth of a river, since cooling surface product becomes smaller, and
The insulation effect of asbestos board is good, and it is low can to solve molten steel temperature in tundish for mouth of a river radiating rate into air slack-off 70~90%
Problem.
The distance of 5 outer surface of bottom to mouth of a river housing of 5 inner surface ring-shaped depression 7 of mouth of a river housing is the thickness of mouth of a river housing 5
Degree, mouth of a river housing 5 with a thickness of the 10~20% of 1 thickness of mouth of a river ontology.
There are the handle of asbestos board matter, stress when handle can be clamped as mouth of a river housing 5 in the outer surface of mouth of a river housing 5
Point.
The fixed form of mouth of a river housing 5 are as follows: mouth of a river housing 5 is fixed on mouth of a river outer wall by the spring using steel wire or with buckle
On.
Embodiment 1:
Using mouth of a river ontology as shown in Figure 1 and Figure 2,80 ring uplifts 2 are wherein machined on the outer wall of mouth of a river ontology 1,
The height H of ring uplift 2 is 5mm, and it is ring-shaped groove 3, ring between every two ring uplifts 2 that the width A of ring uplift 2, which is 5mm,
The depth H of shape groove 3 is 5mm, and the width B of ring-shaped groove 3 is 5mm, in the use process of the mouth of a river, due to the expansion of cooling surface product
1 times, mouth of a river radiating rate into air speeds 1 times, can solve the problems, such as that molten steel temperature in tundish is high.
Using such as figure Fig. 3, Fig. 4, Fig. 5, mouth of a river housing 5 shown in fig. 6, the length of mouth of a river housing 5 is 1 length of mouth of a river ontology
70%, the material of mouth of a river housing 5 is asbestos board, and the Determination of Asbestos in asbestos board is 70%, and the section of mouth of a river housing 5 is semicircle
The outer surface of shape, mouth of a river housing 5 is smooth half-round tubular, and the inner surface of mouth of a river housing 5 has ring-shaped depression 7, the depth of ring-shaped depression 7
Degree h is 5mm, and it is annular protrusion 6, the height of annular protrusion 6 between every two ring-shaped depression 7 that the width a of ring-shaped depression 7, which is 5mm,
H is 5mm, and the width b of annular protrusion 6 is 5mm, the annular on ring-shaped depression 7 and 1 outer wall of mouth of a river ontology on mouth of a river housing 5
Protuberance 2 is adapted, and the two shape is complementary, can be combined closely.On annular protrusion 6 and the mouth of a river body outer wall on mouth of a river housing 5
Ring-shaped groove 3 be adapted, the two shape is complementary, can combine closely, ring uplift 2, annular ditch groove on 1 outer wall of mouth of a river ontology
3 can be respectively embedded in the ring-shaped depression 7 on mouth of a river housing 5, in annular projection 6.
Each and every one several mouth of a river housings 5 can be fixed on the outer wall of mouth of a river ontology 1 by combination installation, play heat insulation effect.
If molten steel temperature in tundish is low, the mouth of a river housing 5 that 2 sections are semicircle shape is mounted on the outer wall of mouth of a river ontology 1, every two
A semicircle shape mouth of a river housing 5 is combined into a circular mouth of a river housing, ring-shaped depression 7, the annular projection of 5 inner surface of mouth of a river housing
6 are respectively embedded in the ring uplift 2 on 1 outer wall of mouth of a river ontology, in annular ditch groove 3, the smooth half-round tubular appearance of mouth of a river housing 5
Face becomes the cooling outer surface of mouth of a river ontology, and since cooling surface product becomes smaller, and the insulation effect of asbestos board is good, and the mouth of a river is to air
Middle radiating rate slack-off 70%, can solve the problems, such as that molten steel temperature in tundish is low.
The distance of 5 outer surface of bottom to mouth of a river housing of 5 inner surface ring-shaped depression 7 of mouth of a river housing is the thickness of mouth of a river housing 5
Degree, mouth of a river housing 5 with a thickness of the 10% of mouth of a river body thickness.
There are the handle of asbestos board matter, stress when handle can be clamped as mouth of a river housing 5 in the outer surface of mouth of a river housing 5
Point.
The fixed form of mouth of a river housing 5 are as follows: mouth of a river housing 5 is fixed on mouth of a river outer wall by the spring using steel wire or with buckle
On.
By using the mouth of a river provided by the utility model for adapting to the Metal in Tundish degree of superheat, by increasing or reducing water
The quantity of fixed mouth of a river housing 5, can increase block or slow down the radiating rate at the mouth of a river, to adapt to molten steel temperature in tundish on mouth outer wall
Fluctuation, reduce the temperature wave momentum of molten steel in mold, the temperature fluctuation of molten steel in mold less than 3 DEG C, realize constant temperature
Casting, slab quality get a promotion, and the proportion of equiaxed grain of slab improves 5%, and center segregation reduces by 0.5 grade
Embodiment 2:
Using mouth of a river ontology as shown in Figure 1 and Figure 2,20 ring uplifts 2 are wherein machined on the outer wall of mouth of a river ontology 1,
The height H of ring uplift 2 is 15mm, and it is ring-shaped groove 3 between every two ring uplifts 2 that the width A of ring uplift 2, which is 5mm,
The depth H of ring-shaped groove 3 is 15mm, and the width B of ring-shaped groove 3 is 5mm, in the use process of the mouth of a river, since cooling surface product expands
3 times big, mouth of a river radiating rate into air speeds 3 times, can solve the problems, such as that molten steel temperature in tundish is high.
Using such as figure Fig. 3, Fig. 4, Fig. 5, mouth of a river housing 5 shown in fig. 6, the length of mouth of a river housing 5 is 1 length of mouth of a river ontology
10%, the material of mouth of a river housing 5 is asbestos board, and the Determination of Asbestos in asbestos board is 85%, and the section of mouth of a river housing 5 is semicircle
The outer surface of shape, mouth of a river housing 5 is smooth half-round tubular, and the inner surface of mouth of a river housing 5 has ring-shaped depression 7, the depth of ring-shaped depression 7
Degree h is 15mm, and it is annular protrusion 6, the height of annular protrusion 6 between every two ring-shaped depression 7 that the width a of ring-shaped depression 7, which is 5mm,
Degree h is 15mm, and the width b of annular protrusion 6 is 5mm, and the ring-shaped depression 7 on mouth of a river housing 5 and the annular on the mouth of a river outer wall are grand
It plays 2 to be adapted, the two shape is complementary, can combine closely.The annular on annular protrusion 6 and the mouth of a river outer wall on mouth of a river housing 5
Recess 7 is adapted, and the two shape is complementary, can be combined closely, and the ring uplift 2, annular ditch groove 3 on 1 outer wall of mouth of a river ontology can be with
It is respectively embedded in the ring-shaped depression 7 on mouth of a river housing 5, in annular projection 6.
Each and every one several mouth of a river housings 5 can be fixed on the outer wall of mouth of a river ontology 1 by combination installation, play heat insulation effect.
It is the mouth of a river of semicircle shape by 2~14 sections according to the difference of liquid steel temperature and target temperature if molten steel temperature in tundish is low
Housing 5 is mounted on the outer wall of mouth of a river ontology 1, and every two semicircle shape mouth of a river housing 5 is combined into a circular mouth of a river housing, water
Ring-shaped depression 7, the annular projection 6 of mouthful 5 inner surface of housing are respectively embedded in ring uplift 2 on the body outer wall of the mouth of a river, annular groove
In slot 3, the smooth half-round tubular outer surface of mouth of a river housing 5 becomes the cooling outer surface in the mouth of a river, since cooling surface product becomes smaller, and
The insulation effect of asbestos board is good, and mouth of a river radiating rate into air slack-off 90% can solve the problems, such as that molten steel temperature in tundish is low.
The distance of 5 outer surface of bottom to mouth of a river housing of 5 inner surface ring-shaped depression 7 of mouth of a river housing is the thickness of mouth of a river housing 5
Degree, mouth of a river housing 5 with a thickness of the 20% of mouth of a river body thickness.
There are the handle of asbestos board matter, stress when handle can be clamped as mouth of a river housing 5 in the outer surface of mouth of a river housing 5
Point.
The fixed form of mouth of a river housing 5 are as follows: mouth of a river housing 5 is fixed on mouth of a river outer wall by the spring using steel wire or with buckle
On.
By using the mouth of a river provided by the utility model for adapting to the Metal in Tundish degree of superheat, by increasing or reducing water
The quantity of fixed mouth of a river housing 5, can increase block or slow down the radiating rate at the mouth of a river, to adapt to molten steel temperature in tundish on mouth outer wall
Fluctuation, reduce the temperature wave momentum of molten steel in mold, less than 2 DEG C realization constant temperature of temperature fluctuation of molten steel in mold pour
Note, slab quality are promoted, and the proportion of equiaxed grain of slab improves 10%, and center segregation reduces by 0.5 grade.
Embodiment 3:
Other are the same as embodiment 1.The difference is that:
Using mouth of a river ontology as shown in Figure 1 and Figure 2,40 ring uplifts 2 are wherein machined on the outer wall of mouth of a river ontology 1,
The height H of ring uplift 2 is 10mm, and it is ring-shaped groove 3 between every two ring uplifts 2 that the width A of ring uplift 2, which is 5mm,
The depth H of ring-shaped groove 3 is 10mm, and the width B of ring-shaped groove 3 is 5mm, in the use process of the mouth of a river, since cooling surface product expands
2 times big, mouth of a river radiating rate into air speeds 2 times, can solve the problems, such as that molten steel temperature in tundish is high.
Using such as Fig. 3, Fig. 4, Fig. 5, mouth of a river housing 5 shown in fig. 6, the length of mouth of a river housing 5 is 1 length of mouth of a river ontology
20%, the material of mouth of a river housing 5 is asbestos board, and the Determination of Asbestos in asbestos board is 85%, and the section of mouth of a river housing 5 is semicircle
The outer surface of shape, mouth of a river housing 5 is smooth half-round tubular, and the inner surface of mouth of a river housing 5 has ring-shaped depression 7, the depth of ring-shaped depression 7
Degree h is 10mm, and it is annular protrusion 6, the height of annular protrusion 6 between every two ring-shaped depression 7 that the width a of ring-shaped depression 7, which is 5mm,
Degree h is 10mm, and the width b of annular protrusion 6 is 5mm, and 7 slot of annular ditch on mouth of a river housing 5 and the annular on the mouth of a river outer wall are grand
It plays 2 to be adapted, the two shape is complementary, can combine closely.The annular on annular protrusion 6 and the mouth of a river outer wall on mouth of a river housing 5
Recess 7 is adapted, and the two shape is complementary, can be combined closely, and the ring uplift 2, annular ditch groove 3 on 1 outer wall of mouth of a river ontology can be with
It is respectively embedded in the ring-shaped depression 7 on mouth of a river housing 5, in annular projection 6.
Each and every one several mouth of a river housings 5 can be fixed on the outer wall of mouth of a river ontology 1 by combination installation, play heat insulation effect.
It is the mouth of a river of semicircle shape by 3~10 sections according to the difference of liquid steel temperature and target temperature if molten steel temperature in tundish is low
Housing 5 is mounted on the outer wall of mouth of a river ontology 1, and every two semicircle shape mouth of a river housing 5 is combined into a circular mouth of a river housing, water
Ring-shaped depression 7, the annular projection 6 of mouthful 5 inner surface of housing are respectively embedded in ring uplift 2 on the body outer wall of the mouth of a river, annular groove
In slot 3, the smooth half-round tubular outer surface of mouth of a river housing 5 becomes the cooling outer surface in the mouth of a river, since cooling surface product becomes smaller, and
The insulation effect of asbestos board is good, and mouth of a river radiating rate into air slack-off 80% can solve the problems, such as that molten steel temperature in tundish is low.
The distance of 5 outer surface of bottom to mouth of a river housing of 5 inner surface ring-shaped depression 7 of mouth of a river housing is the thickness of mouth of a river housing 5
Degree, mouth of a river housing 5 with a thickness of the 15% of mouth of a river body thickness.
There are the handle of asbestos board matter, stress when handle can be clamped as mouth of a river housing 5 in the outer surface of mouth of a river housing 5
Point.
The fixed form of mouth of a river housing 5 are as follows: mouth of a river housing 5 is fixed on the outer wall of the mouth of a river using steel wire.
By using the mouth of a river provided by the utility model for adapting to the Metal in Tundish degree of superheat, by increasing or reducing water
The quantity of fixed mouth of a river housing 5, can increase block or slow down the radiating rate at the mouth of a river, to adapt to molten steel temperature in tundish on mouth outer wall
Fluctuation, reduce the temperature wave momentum of molten steel in mold, less than 2 DEG C realization constant temperature of temperature fluctuation of molten steel in mold pour
Note, slab quality are promoted, and the proportion of equiaxed grain of slab improves 8%, and center segregation reduces by 0.5 grade.
Claims (6)
1. a kind of mouth of a river ontology for adapting to the Metal in Tundish degree of superheat, which is characterized in that processed on the outer wall of mouth of a river ontology (1)
There are 20~80 ring uplifts；
Ring uplift is machined on the outer wall of the mouth of a river ontology, the height H of ring uplift is 5~15mm, the width A of ring uplift
For 5~15mm, the spacing distance between every two ring uplift is 5~15mm；
It is ring-shaped groove (3) that the depth H of ring-shaped groove (3) is 5~15mm, ring-shaped groove between every two ring uplifts (2)
(3) width B is 5~15mm.
2. a kind of mouth of a river housing for adapting to the Metal in Tundish degree of superheat, which is characterized in that the section of mouth of a river housing is semicircle shape,
The outer surface of mouth of a river housing is smooth half-round tubular, and the inner surface of mouth of a river housing has ring-shaped depression；
The depth h of ring-shaped depression is 5~15mm, and the broadband a of ring-shaped depression is 5~15mm, between every two ring-shaped depression between
Gauge is from for 5~15mm；
It is annular protrusion (6) that the height h of annular protrusion (6) is 5~15mm, annular protrusion between every two ring-shaped depression (7)
(6) width b is 5~15mm.
3. mouth of a river housing as claimed in claim 2, which is characterized in that there is the handle of asbestos board matter in the outer surface of mouth of a river housing.
4. a kind of mouth of a river for adapting to the Metal in Tundish degree of superheat, by mouth of a river ontology described in claim 1 and claim 2-3
Described in any item mouth of a river housing compositions, which is characterized in that mouth of a river housing is assembled on the ontology of the mouth of a river；Upper annular is covered outside the mouth of a river
Recess is adapted with the ring uplift on the mouth of a river body outer wall.
5. adapting to the mouth of a river of the Metal in Tundish degree of superheat as claimed in claim 4, which is characterized in that on mouth of a river housing (5)
Ring-shaped depression (7) and the mouth of a river body outer wall on ring uplift (2) be adapted, the two shape is complementary, on mouth of a river housing (5)
Annular protrusion (6) and the mouth of a river body outer wall on ring-shaped groove (3) be adapted, the two shape is complementary, mouth of a river body outer wall
On ring uplift (2), ring-shaped groove (3) be respectively embedded in ring-shaped depression (7), annular protrusion (6) on mouth of a river housing (5)
It is interior.
6. adapting to the mouth of a river of the Metal in Tundish degree of superheat as described in claim 4 or 5, which is characterized in that
The length of mouth of a river housing is the 10%~70% of mouth of a river ontology (1) length, several mouth of a river housings are solid by combination installation
Determine onto the outer wall of mouth of a river ontology；
Mouth of a river housing with a thickness of the 10~20% of mouth of a river body thickness.
Priority Applications (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326276A (en) * | 2018-05-17 | 2018-07-27 | 山东钢铁股份有限公司 | A kind of mouth of a river adapting to the Metal in Tundish degree of superheat |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108326276A (en) * | 2018-05-17 | 2018-07-27 | 山东钢铁股份有限公司 | A kind of mouth of a river adapting to the Metal in Tundish degree of superheat |
| CN108326276B (en) * | 2018-05-17 | 2023-09-19 | 山东钢铁股份有限公司 | Can adapt to mouth of a river of middle package molten steel superheat degree |
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