CN203330387U - Fire sealing device capable of preventing molten steel from secondary oxidation - Google Patents
Fire sealing device capable of preventing molten steel from secondary oxidation Download PDFInfo
- Publication number
- CN203330387U CN203330387U CN2013203368872U CN201320336887U CN203330387U CN 203330387 U CN203330387 U CN 203330387U CN 2013203368872 U CN2013203368872 U CN 2013203368872U CN 201320336887 U CN201320336887 U CN 201320336887U CN 203330387 U CN203330387 U CN 203330387U
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- fire sealing
- fire
- sealing device
- sealing ring
- secondary oxidation
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- Expired - Fee Related
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Abstract
The utility model provides a fire sealing device capable of preventing molten steel from secondary oxidation. The fire sealing device is composed of a connecting pipe and a fire sealing ring, wherein one end of the connecting pipe is provided with the annular fire sealing ring, and a combustion hole is formed in the inner side wall of the fire sealing ring. The connecting pipe of the fire sealing device is connected with a coke oven gas pipe through a hose, a large tank small water nozzle is sleeved with the fire sealing ring of the fire sealing device, and a long water nozzle is then arranged. Then, a coke oven gas valve is opened, coke oven gas enters the fire sealing ring through the connecting pipe and is sprayed out of the combustion hole, the sprayed coke oven gas can instantly burn due to the high temperature of a tundish, the combustion flame consumes oxygen near a nozzle sealing bowl, produces negative pressure at the same time and absorbs air between the long water nozzle and the large tank small water nozzle, therefore, the molten steel is prevented from secondary oxidation, and the pouring protection effect is achieved.
Description
Technical field
The utility model belongs to the casting apparatus field, is specifically related to a kind ofly when basket pouring, utilizes flame to stop the fire envelope device of the little mouth of a river of large tank and long nozzle composition surface air intake.
Background technology
In the continuous casting process, molten steel is injected in tundish from large tank by long nozzle, and in this process, the large little mouth of a river of tank and long nozzle composition surface are the air-breathing sources of molten steel, molten steel forms negative pressure under Rapid Flow in long nozzle, if seal, bad air intake will be arranged.
The sealing measure of taking at present is, utilize manipulator by the long nozzle holder under the little mouth of a river of large tank, between the large little mouth of a river of tank and long nozzle, with sealing gasket, sealed, pass into argon gas in long water gap bowl and sealed simultaneously.Although this sealing mode can completely cut off most of air; but all to say the residual steel in mouthful bowl with the oxygen cleaning after the every cast one tank molten steel of long nozzle; after the cast multiple tank, water gap bowl just there will be scraggly phenomenon, thereby causes sealing gasket and argon shield not to have the effect of protection cast.
Summary of the invention
The utility model aims to provide a kind of negative pressure of utilizing flame combustion to form and stops the little mouth of a river of large tank and long nozzle composition surface air amount, thereby prevents the fire envelope device of secondary oxidation of steel.
For this reason, the solution that the utility model is taked is:
A kind of fire envelope device that prevents secondary oxidation of steel, is characterized in that, tube connector and fiery seal ring, consists of; Tube connector one end is provided with annular fire seal ring, on fiery seal ring madial wall, has at least 5 burner ports.
Described burner port is 8.
Using method of the present utility model and effect are:
Before basket pouring, with flexible pipe, fire is sealed to the device tube connector and be connected with the coke-oven coal tracheae, to before water on large tank, the fiery seal ring of first fire being sealed to device is enclosed within on the little mouth of a river of large tank, then installs long nozzle at every turn.Then open the coke-stove gas valve, coke-stove gas enters fiery seal ring via tube connector, and sprays by burner port, and because tundish temperature is higher, the coke-stove gas of ejection can burn immediately, forms a circle flame shield face between long nozzle and the little mouth of a river.Burned flame both can consume near oxygen water gap bowl, and the burning of flame simultaneously also can form negative pressure, siphoned away the air between long nozzle and the little mouth of a river of large tank, thereby avoided the suction of air, realized the effect of protection cast.
The accompanying drawing explanation
Fig. 1 is fire envelope device structural representation.
In figure: tube connector 1, fiery seal ring 2, burner port 3.
The specific embodiment
As seen from Figure 1, the utility model fire envelope device mainly is comprised of tube connector 1 and fiery seal ring 2.Tube connector 1 and fiery seal ring 2 can adopt welding manner, also can utilize the seamless pipe system of simmering to form.By the one end sealing of a seamless pipe, according to the size that is slightly larger than the little mouth of a river of large tank diameter, blind end is simmered and made an annular fire seal ring 2, the seamless pipe other end is as tube connector 1, and then gets out 8 burner ports 3 on fiery seal ring 2 madial walls, makes the utility model fire envelope device.Before using if by tube connector 1 by flexible pipe with can use on coke oven gas pipe is connected.
Claims (2)
1. a fire envelope device that prevents secondary oxidation of steel, is characterized in that, tube connector and fiery seal ring, consists of; Tube connector one end is provided with annular fire seal ring, on fiery seal ring madial wall, has at least 5 burner ports.
2. the fire envelope device that prevents secondary oxidation of steel according to claim 1, is characterized in that, described burner port is 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203368872U CN203330387U (en) | 2013-06-11 | 2013-06-11 | Fire sealing device capable of preventing molten steel from secondary oxidation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203368872U CN203330387U (en) | 2013-06-11 | 2013-06-11 | Fire sealing device capable of preventing molten steel from secondary oxidation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203330387U true CN203330387U (en) | 2013-12-11 |
Family
ID=49699087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203368872U Expired - Fee Related CN203330387U (en) | 2013-06-11 | 2013-06-11 | Fire sealing device capable of preventing molten steel from secondary oxidation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203330387U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828748A (en) * | 2020-06-23 | 2021-12-24 | 宝山钢铁股份有限公司 | Automatic control system and method for preventing molten steel from being oxidized in whole continuous casting process |
-
2013
- 2013-06-11 CN CN2013203368872U patent/CN203330387U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113828748A (en) * | 2020-06-23 | 2021-12-24 | 宝山钢铁股份有限公司 | Automatic control system and method for preventing molten steel from being oxidized in whole continuous casting process |
| CN113828748B (en) * | 2020-06-23 | 2023-04-11 | 宝山钢铁股份有限公司 | Automatic control system and method for preventing molten steel from being oxidized in whole continuous casting process |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 Termination date: 20190611 |