CN207119798U - A kind of mouth of a river with heat-insulation layer - Google Patents
A kind of mouth of a river with heat-insulation layer Download PDFInfo
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- CN207119798U CN207119798U CN201720783023.3U CN201720783023U CN207119798U CN 207119798 U CN207119798 U CN 207119798U CN 201720783023 U CN201720783023 U CN 201720783023U CN 207119798 U CN207119798 U CN 207119798U
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Abstract
A kind of mouth of a river with heat-insulation layer is the utility model is related to, it includes：Mouth of a river body (9), the mouth of a river body (9) are hollow；The mouth of a river with heat-insulation layer also includes：Tubular vacuum layer (4) and mouth of a river slag line layer (8)；One section of the mouth of a river body (9) is exposed in air；One section of the mouth of a river body (9) being exposed in air is sequentially coaxially provided with from outside to inside：Anti-oxidation glaze layer (2), mouth of a river base layer outer wall (3), tubular vacuum layer (4), mouth of a river body layer inwall (10) and mouth of a river inner liner (5)；The tubular vacuum layer (4) is communicated to anti-oxidation glaze layer (2) outside provided with vacuum layer vent (6)；Remaining another section of the mouth of a river body (9) is then inserted in molten steel, and described another section of mouth of a river body (9) structure from outside to inside includes successively：The anti-oxidation glaze layer (2), the mouth of a river slag line layer (8) and the mouth of a river inner liner (5).
Description
Technical field
Technical field of ferrous metallurgy is the utility model is related to, more particularly to a kind of mouth of a river with heat-insulation layer.
Background technology
At present, the ratio of China's steel continuously casting is up to more than 98%, and in addition to extremely indivedual steel grades, general steel grade is all
Molten steel is converted into by steel billet by continuously casting, in casting process the selection of refractory material have higher standard, particularly
Current country especially payes attention in effective use aspects of the energy.
In continuous casting working procedure in steel production link, the mouth of a river is an indispensable production accessory, wherein, the mouth of a river includes big
Bag long nozzle and crystallizer invasive nozzle.Big circulation passage of the bag long nozzle between ladle and tundish, crystallizer intrusion
Circulation passage of the formula mouth of a river between tundish and crystallizer.But molten steel is flowing through big bag long nozzle and crystallizer intrusive mood
During the mouth of a river, there is obvious temperature to scatter and disappear；The mouth of a river is heated to more than 1000 DEG C by molten steel, quickly can be dissipated into air
Heat, the heat that exposure is lost in air with the mouth of a river in air is about 4.6~9.2 × 106J/ ton steel, about 0.15 arrives
The heat of 0.3kg standard coals, i.e., 120 tons of ladle are about 18~36kg marks by mouth of a river dispersed heat in casting process
The heat of quasi- coal, the heat being lost in air bring a large amount of wastes of resource.
The content of the invention
The purpose of this utility model is that, to solve drawbacks described above existing for the existing mouth of a river, the utility model provides
A kind of mouth of a river with heat-insulation layer.
To reach above-mentioned purpose, the utility model provides a kind of mouth of a river with heat-insulation layer, and it includes：Mouth of a river body, pipe
Shape vacuum layer and mouth of a river slag line layer；The mouth of a river body is hollow；One section of the mouth of a river body is exposed in air；
One section of the mouth of a river body being exposed in air is sequentially coaxially provided with from outside to inside：Anti-oxidation glaze
Layer, mouth of a river base layer outer wall, tubular vacuum layer, mouth of a river body layer inwall and mouth of a river inner liner；The tubular vacuum layer is provided with true
Dead level vent is communicated to outside anti-oxidation glaze layer；
Remaining another section of the mouth of a river body is then inserted in molten steel, and described another section mouth of a river body from outside to inside according to
It is secondary to be coaxially provided with：The anti-oxidation glaze layer, the mouth of a river slag line layer and the mouth of a river inner liner.
The tubular vacuum layer is nested in the mouth of a river base of one section of the mouth of a river body being exposed in air
Between body layer inwall and the mouth of a river base layer outer wall.
The vacuum layer vent is located at the anti-oxidation glaze layer for one section of mouth of a river body being exposed in air
On, after exhausting vacuum by the vacuum layer vent, it is sealed against by the refractory material of melting, ensures the tubulose
Vacuum layer is a confined space.
The anti-oxidation glaze layer is to be sprayed on the surface of the mouth of a river body outer wall, and sinters the anti-oxidation glaze of formation
Material, its thickness is 0.5~1mm.
The mouth of a river base layer inwall, the tubular vacuum layer, the thickness sum of the mouth of a river base layer outer wall three are
The 70~90% of the gross thickness of mouth of a river body, the thickness of the mouth of a river inner liner is the 10~30% of the gross thickness of mouth of a river body.
The thickness of the tubular vacuum layer is 5~15mm, in the tubular vacuum layer, is evacuated to 5~10pa.In vacuum
In the case that degree is higher, the pressure in heat and the tubular vacuum layer transmitted in the tubular vacuum layer is directly proportional, is protecting
Hold the gas pressure inside the tubular vacuum layer to be less than in the state of 10pa, the gas in the tubular vacuum layer does not pass substantially
Pass heat, it is possible to reduce transmission speed of the heat in the matrix of the mouth of a river, also with regard to heat-energy losses caused by the mouth of a river is radiated can be reduced.
The thickness of the mouth of a river slag line layer is the 70~90% of the gross thickness of the mouth of a river body.
The utility model has the advantage of：Using technology provided by the utility model, one is set in the matrix of the mouth of a river very
Dead level, due to poor thermal conductivity in vacuum layer, in casting process, heat-energy losses caused by the radiating of the mouth of a river can be significantly reduced,
It effectively prevent the loss of amount of heat.
Brief description of the drawings
Fig. 1 is a kind of structural representation at mouth of a river with heat-insulation layer of the present utility model.
Accompanying drawing identifies：
1st, mouth of a river upper end 2, anti-oxidation glaze layer
3rd, mouth of a river base layer outer wall 4, tubular vacuum layer
5th, mouth of a river inner liner 6, vacuum layer vent
7th, exit passageway 8, mouth of a river slag line layer
9th, mouth of a river body 10, mouth of a river base layer inwall
Embodiment
In conjunction with accompanying drawing, the utility model will be further described.
As shown in figure 1, the utility model provides a kind of mouth of a river with heat-insulation layer, it includes：Mouth of a river body 9, tubulose is true
Dead level 4 and mouth of a river slag line layer 8；The mouth of a river body 9 is hollow；The upper semisection of the mouth of a river body 9 is exposed in air；
The mouth of a river body 9 of the upper semisection is sequentially coaxially provided with from outside to inside：Anti-oxidation glaze layer 2, mouth of a river matrix
Layer outer wall 3, tubular vacuum layer 4, mouth of a river base layer inwall 10 and mouth of a river inner liner 5；The tubular vacuum layer 4 is arranged provided with vacuum layer
Stomata road 6 is communicated to outside anti-oxidation glaze layer 2；
The lower semisection of the mouth of a river body is then inserted in molten steel, and the mouth of a river body 9 of the lower semisection is from outside to inside successively
It is coaxially provided with：The anti-oxidation glaze layer 2, the mouth of a river slag line layer 8 and the mouth of a river inner liner 5；Molten steel is along the outlet
Passage 7 flows out.
The tubular vacuum layer 4 is nested in the water of the mouth of a river body 9 of the upper semisection being exposed in air
Between mouth base layer inwall 10 and the mouth of a river base layer outer wall 3.
The vacuum layer vent 6 is located at the anti-oxidation glaze of the mouth of a river body 9 for the upper semisection being exposed in air
On the bed of material 2, after exhausting vacuum by the vacuum layer vent 6, it is sealed against by the refractory material of melting, ensures institute
It is a confined space to state tubular vacuum layer 4.
The anti-oxidation glaze layer 2 sinters the oxygen of formation to be sprayed on the surface of the mouth of a river matrix outer wall
Change glaze, its thickness is 0.5~1mm.
The mouth of a river base layer outer wall 10, the tubular vacuum layer 4, the three of mouth of a river base layer inwall 3 thickness it
With 70~90% of the gross thickness for mouth of a river body 9, the thickness of mouth of a river inner liner 5 for the gross thickness of mouth of a river body 9 10~
30%.
The thickness of the tubular vacuum layer 3 is 5~15mm, in the tubular vacuum layer 3, is evacuated to 5~10pa.True
In the case that reciprocal of duty cycle is higher, the pressure in heat and the tubular vacuum layer 3 transmitted in the tubular vacuum layer 3 is directly proportional,
In the state of keeping the gas pressure inside the tubular vacuum layer 3 to be less than 10pa, the gas base in the tubular vacuum layer 3
This does not transmit heat, it is possible to reduce transmission speed of the heat in the base layer of the mouth of a river, also with regard to heat caused by the mouth of a river is radiated can be reduced
The loss of energy, it can about reduce more than 5 DEG C of molten steel temperature drop.
The thickness of mouth of a river slag line layer 8 is the 70~90% of the gross thickness of the mouth of a river body 9.
It should be noted last that above example is only illustrating the technical solution of the utility model and unrestricted.To the greatest extent
The utility model is described in detail with reference to embodiment for pipe, it will be understood by those within the art that, to this practicality
New technical scheme is modified or equivalent substitution, without departure from the spirit and scope of technical solutions of the utility model, its
It all should cover among right of the present utility model.
Claims (5)
1. a kind of mouth of a river with heat-insulation layer, it includes：Mouth of a river body (9), the mouth of a river body (9) are hollow；
Characterized in that, the mouth of a river with heat-insulation layer also includes：Tubular vacuum layer (4) and mouth of a river slag line layer (8)；The mouth of a river
One section of body (9) is exposed in air；
One section of the mouth of a river body (9) being exposed in air is sequentially coaxially provided with from outside to inside：Anti-oxidation glaze layer
(2), mouth of a river base layer outer wall (3), tubular vacuum layer (4), mouth of a river body layer inwall (10) and mouth of a river inner liner (5)；The pipe
Shape vacuum layer (4) is communicated to anti-oxidation glaze layer (2) outside provided with vacuum layer vent (6)；
Remaining another section of the mouth of a river body (9) is then inserted in molten steel, and described another section mouth of a river body (9) from outside to inside
Sequentially coaxially it is provided with：The anti-oxidation glaze layer (2), the mouth of a river slag line layer (8) and the mouth of a river inner liner (5).
2. a kind of mouth of a river with heat-insulation layer according to claim 1, it is characterised in that the anti-oxidation glaze layer (2) is
It is sprayed on the surface of the mouth of a river base layer outer wall (3), and sinters the anti-oxidation glaze of formation, its thickness is 0.5~1mm.
A kind of 3. mouth of a river with heat-insulation layer according to claim 1, it is characterised in that the mouth of a river base layer inwall
(10), the tubular vacuum layer (4), the total thickness that the thickness sum of mouth of a river body layer outer wall (3) three is mouth of a river body (9)
The 70~90% of degree, the thickness of the mouth of a river inner liner (5) is the 10~30% of the gross thickness of the mouth of a river body (9).
A kind of 4. mouth of a river with heat-insulation layer according to claim 1, it is characterised in that the thickness of the tubular vacuum layer (4)
Spend for 5~15mm, in the tubular vacuum layer (4), be evacuated to 5~10pa.
A kind of 5. mouth of a river with heat-insulation layer according to claim 1, it is characterised in that the thickness of the mouth of a river slag line layer (8)
Spend 70~90% of the gross thickness for the mouth of a river body (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720783023.3U CN207119798U (en) | 2017-06-30 | 2017-06-30 | A kind of mouth of a river with heat-insulation layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720783023.3U CN207119798U (en) | 2017-06-30 | 2017-06-30 | A kind of mouth of a river with heat-insulation layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207119798U true CN207119798U (en) | 2018-03-20 |
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ID=61615467
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720783023.3U Active CN207119798U (en) | 2017-06-30 | 2017-06-30 | A kind of mouth of a river with heat-insulation layer |
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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 |
| CN112808990A (en) * | 2020-12-28 | 2021-05-18 | 河北工业职业技术学院 | Ladle drainage method |
-
2017
- 2017-06-30 CN CN201720783023.3U patent/CN207119798U/en active Active
Cited By (3)
| 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 |
| CN112808990A (en) * | 2020-12-28 | 2021-05-18 | 河北工业职业技术学院 | Ladle drainage method |
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