CN215799807U - Atmosphere protective cover of electroslag furnace - Google Patents
Atmosphere protective cover of electroslag furnace Download PDFInfo
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- CN215799807U CN215799807U CN202121965377.2U CN202121965377U CN215799807U CN 215799807 U CN215799807 U CN 215799807U CN 202121965377 U CN202121965377 U CN 202121965377U CN 215799807 U CN215799807 U CN 215799807U
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Abstract
The utility model discloses an electroslag furnace atmosphere protection cover which comprises an upper protection cover, a lower protection cover arranged above a crystallizer and an adjusting rod arranged between the outer side of the upper protection cover and the outer side of the lower protection cover, wherein the adjusting rod is a telescopic rod consisting of an inner rod and an outer rod, the inner rod and the outer rod are locked through a locking screw, the upper part of the adjusting rod is connected with the top of the side edge of the upper protection cover, the lower part of the adjusting rod is connected with the bottom of the side edge of the lower protection cover, and the section of the upper protection cover is in a shape of a Chinese character and extends towards the circumferential direction to form a cylindrical structure. The upper protection cover and the lower protection cover are respectively provided with the cooling liquid cavity inside, and the cooling liquid cavities are sealed in an inserting mode, so that on the premise of ensuring that the height can be adjusted, the sealing performance is ensured, the leakage of cooling liquid is avoided, the safety is improved, the lower protection cover is close to the crystallizer, the cooling liquid is more in response, and the good cooling effect is ensured.
Description
Technical Field
The utility model relates to the technical field of electroslag furnaces, in particular to an atmosphere protection cover of an electroslag furnace.
Background
The electroslag furnace is a special smelting device which utilizes remelting current to generate heat energy to melt a consumable electrode inserted into a slag bath, and metal molten drops are crystallized into electroslag ingots in a water-cooled crystallizer after being cleaned by slag liquid. Electroslag furnace is essential production equipment for special steel mills. Most electroslag furnaces are open, air humidity is high, the steel ingot can generate air hole defects, hydrogen content is increased, white spots can be generated if hydrogen content in steel is high, and accordingly scrapping and loss are caused. Therefore, gas protection measures should be taken during electroslag remelting.
The atmosphere protection cover in the prior art is not provided with a cooling device, so that the temperature in the crystallizer is easily overhigh, the height of the atmosphere protection cover is fixed, the height can not be adjusted according to specific conditions, and the use is inconvenient.
The national intellectual property right 2020, 2, 14, authorizes a utility model patent named as 'an electroslag furnace atmosphere protection cover', and the application number is: 201920606713.0, which discloses the following technical proposal: the device comprises an upper protective cover, a lower protective cover, an adjusting rod, a cooling liquid inlet, a cooling liquid outlet, an argon blowing pipe, an argon inlet pipe, an asbestos cover, a discharge port and an air blowing hole; the upper protection cover and the lower protection cover are of double-layer structures, the outer wall of the lower protection cover is arranged between the inner layer and the outer layer of the upper protection cover, and the inner layer space and the outer layer space of the upper protection cover are communicated … … with the inner layer space and the outer layer space of the lower protection cover. The problem that this patent exists is because the ectonexine space of upper protective cover and the ectonexine space intercommunication of lower floor's protective cover, and keep sliding connection between them, the leakproofness can not obtain guaranteeing, probably makes its inside coolant liquid take place to reveal after long-time the use, and in case reveal will cause great incident.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an atmosphere protection cover of an electroslag furnace to solve the problems in the background technology.
In order to achieve the purpose, the utility model provides the following technical scheme: an electroslag furnace atmosphere protection cover comprises an upper protection cover, a lower protection cover arranged above a crystallizer and an adjusting rod arranged between the outer side of the upper protection cover and the outer side of the lower protection cover, wherein the adjusting rod is a telescopic rod consisting of an inner rod and an outer rod, the inner rod and the outer rod are locked by a locking screw, the upper part of the adjusting rod is connected with the top of the side edge of the upper protection cover, the lower part of the adjusting rod is connected with the bottom of the side edge of the lower protection cover, the section of the upper protection cover is in a shape like a Chinese character 'ji' and extends towards the circumferential direction to form a tubular structure, a through hole for an electrode blank to pass through is formed on the top surface of the upper protection cover, the section of the lower protection cover is in a concave shape and extends towards the circumferential direction to form a tubular structure, an annular groove with an opening top for the upper protection cover to alternate is formed inside the lower protection cover, and a cooling liquid cavity is formed inside the upper protection cover and the lower protection cover, the both sides at upper safety cover and lower floor safety cover top are symmetry coolant liquid respectively and advance pipe and cold district liquid exit tube, the inside coaxial annular gas outlet shell that is provided with of upper safety cover of through-hole below, the bottom of annular gas outlet shell evenly is provided with the venthole, one side of annular gas outlet shell is provided with the outlet duct that extends to the lower floor safety cover outside, just set up the atmospheric pressure valve on the outlet duct, the bottom branch of annular gas outlet shell is provided with annular air inlet shell, the bottom of annular air inlet shell evenly sets up the blast pipe, the annular air inlet shell be provided with the intake pipe that extends to the lower floor safety cover outside.
Preferably, the exhaust pipe is flared, and a small end of the exhaust pipe is arranged downwards.
Preferably, an asbestos cover is arranged on the top of the upper protective cover.
Preferably, the inner side edge of the lower protective cover is tightly attached to the side wall of the annular groove, and a sealing gasket is arranged between the inner side edge of the lower protective cover and the side wall of the annular groove.
Preferably, the cross-sectional area of the annular inlet casing is larger than that of the annular outlet casing.
Compared with the prior art, the utility model has the beneficial effects that:
(1) the section of the upper layer of the protective cover is in a character shape and extends towards the circumferential direction to form a cylindrical structure, the section of the lower layer of the protective cover is in a concave shape and extends towards the circumferential direction to form the cylindrical structure, an annular groove with an opening at the top for the upper layer of the protective cover to penetrate is formed inside the lower layer of the protective cover, cooling liquid cavities are formed inside the upper layer of the protective cover and the lower layer of the protective cover in a hollow mode, the upper layer of the protective cover and the lower layer of the protective cover are respectively provided with the cooling liquid cavities, and the upper layer of the protective cover and the lower layer of the protective cover are sealed in an inserting mode.
(2) According to the utility model, the bottom of the annular air outlet shell is uniformly provided with air outlet holes, one side of the annular air outlet shell is provided with an air outlet pipe extending to the outer side of the lower protective cover, the air outlet pipe is provided with a pressure valve, the bottom support rod of the annular air outlet shell is provided with an annular air inlet shell, the bottom of the annular air inlet shell is uniformly provided with an exhaust pipe, the annular air inlet shell is provided with an air inlet pipe extending to the outer side of the lower protective cover, argon is introduced into the air inlet pipe, the argon is discharged into a crystallizer through the exhaust pipe of the annular air inlet shell, and excessive argon can be discharged through the annular air outlet shell and the air outlet pipe, wherein the arrangement of the pressure valve ensures that certain air pressure can be formed in the atmosphere protective cover, so that air is prevented from entering.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic side sectional view of the present invention.
In the figure: 1. an upper protective cover; 2. a lower layer protective cover; 3. adjusting a rod; 4. a through hole; 5. an annular groove; 6. a cooling fluid chamber; 7. a cooling liquid inlet pipe; 8. a cold zone liquid outlet pipe; 9. an annular air outlet shell; 10. an air outlet; 11. an air outlet pipe; 12. a pneumatic valve; 13. an annular air inlet shell; 14. an exhaust pipe; 15. an air inlet pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-2, an embodiment of the present invention is shown: an electroslag furnace atmosphere protection cover comprises an upper protection cover 1, a lower protection cover 2 arranged above a crystallizer and an adjusting rod 3 arranged between the outer side of the upper protection cover 1 and the outer side of the lower protection cover 2, wherein the adjusting rod 3 is a telescopic rod consisting of an inner rod and an outer rod, the inner rod and the outer rod are locked by a locking screw, the upper part of the adjusting rod 3 is connected with the top of the side edge of the upper protection cover 1, the lower part of the adjusting rod 3 is connected with the bottom of the side edge of the lower protection cover 2, the adjusting rod 3 is telescopic, the distance between the upper protection cover 1 and the lower protection cover can be changed to adjust the overall height of the atmosphere protection cover, the section of the upper protection cover 1 is in a shape of 7 and extends towards the circumferential direction to form a tubular structure, a through hole 4 for an electrode blank to pass is formed on the top surface of the upper protection cover 1, the concave section of the lower protection cover 2 is in a shape and extends towards the circumferential direction to form a tubular structure, an annular groove 5 with an open top for the upper protective cover 1 to penetrate is formed in the lower protective cover 2, a cooling liquid cavity 6 is formed in the upper protective cover 1 and the lower protective cover 2 in a hollow manner, a cooling liquid inlet pipe 7 and a cooling area liquid outlet pipe 8 are respectively arranged on two sides of the top of the upper protective cover 1 and the lower protective cover 2 symmetrically, the upper protective cover and the lower protective cover are respectively provided with the cooling liquid cavity, and are sealed in an inserting manner, on the premise of ensuring height adjustment, the sealing performance is ensured, the cooling liquid is prevented from leaking, the safety is improved, the lower protective cover is close to a crystallizer, more cooling liquid is responded by the lower protective cover, the good cooling effect is ensured, an annular air outlet shell 9 is coaxially arranged in the upper protective cover 1 below the through hole 4, air outlet holes 10 are uniformly formed in the bottom of the annular air outlet shell 9, one side of the annular air outlet shell 9 is provided with an air outlet pipe 11 extending to the outer side of the lower protective cover 2, and set up the atmospheric pressure valve 12 on the outlet duct 11, the bottom branch of the annular air outlet shell 9 is provided with the annular air inlet shell 13, the bottom of the annular air inlet shell 13 evenly sets up the blast pipe 14, the annular air inlet shell 13 is provided with the intake pipe 15 that extends to the lower floor's safety cover 2 outside, argon gas is let in to the intake pipe inside, argon gas gets into the crystallizer through the blast pipe 14 discharge of the annular air inlet shell 13 in, and too much argon gas accessible annular air outlet shell 9 and outlet duct row 11 discharge, wherein the setting up of atmospheric pressure valve has guaranteed that atmosphere safety cover inside can form certain atmospheric pressure, avoid the air to get into.
In this embodiment, the exhaust pipe 15 is flared and the small end of the exhaust pipe is disposed downward, so as to increase the flow rate of the argon gas, and the argon gas can rapidly reach the portion above the slag in the crystallizer 11.
In this embodiment, the top of the upper protective cover 1 is provided with an asbestos cover, which can reduce the loss of argon gas.
In this embodiment, the inner side edge of the lower protective cover 2 is tightly attached to the side wall of the annular groove 5, and a sealing gasket is arranged between the inner side edge of the lower protective cover 2 and the side wall of the annular groove 5, so that the air tightness between the lower protective cover 2 and the upper protective cover 1 is improved.
In this embodiment, the cross-sectional area of the annular inlet housing 13 is greater than the cross-sectional area of the annular outlet housing 9.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.
Claims (5)
1. An atmosphere protection cover of an electroslag furnace comprises an upper protection cover (1), a lower protection cover (2) arranged above a crystallizer and an adjusting rod (3) arranged between the outer side of the upper protection cover (1) and the outer side of the lower protection cover (2), wherein the adjusting rod (3) is a telescopic rod consisting of an inner rod and an outer rod, the inner rod and the outer rod are locked by a locking screw, the upper part of the adjusting rod (3) is connected with the top of the side edge of the upper protection cover (1), the lower part of the adjusting rod (3) is connected with the bottom of the side edge of the lower protection cover (2), the atmosphere protection cover is characterized in that the section of the upper protection cover (1) is in a shape of 7 and extends towards the circumferential direction to form a tubular structure, a through hole (4) for an electrode blank to pass through is formed on the top surface of the upper protection cover (1), the section of the lower protection cover (2) is in a concave shape and extends towards the circumferential direction to form a tubular structure, the inner part of the lower protective cover (2) is provided with an annular groove (5) with an open top for the upper protective cover (1) to penetrate, the inner parts of the upper protective cover (1) and the lower protective cover (2) are hollow to form a cooling liquid cavity (6), the two sides of the top parts of the upper protective cover (1) and the lower protective cover (2) are respectively symmetrical to a cooling liquid inlet pipe (7) and a cooling liquid outlet pipe (8), the inner part of the upper protective cover (1) below the through hole (4) is coaxially provided with an annular air outlet casing (9), the bottom of the annular air outlet casing (9) is uniformly provided with air outlet holes (10), one side of the annular air outlet casing (9) is provided with an air outlet pipe (11) extending to the outer side of the lower protective cover (2), the air outlet pipe (11) is provided with an air pressure valve (12), and the bottom support rod of the annular air outlet casing (9) is provided with an annular air inlet casing (13), the bottom of annular air inlet shell (13) evenly sets up blast pipe (14), be provided with of annular air inlet shell (13) and extend to intake pipe (15) in lower floor's safety cover (2) outside.
2. An atmosphere protecting cover for an electroslag furnace according to claim 1, wherein: the exhaust pipe (14) is horn-shaped, and a small end of the exhaust pipe is arranged downwards.
3. An atmosphere protecting cover for an electroslag furnace according to claim 1, wherein: and an asbestos cover is arranged at the top of the upper protective cover (1).
4. An atmosphere protecting cover for an electroslag furnace according to claim 1, wherein: the inboard edge of lower floor's safety cover (2) is hugged closely with ring channel (5) lateral wall, and is provided with sealed the pad between the inboard edge of lower floor's safety cover (2) and ring channel (5) lateral wall.
5. An atmosphere protecting cover for an electroslag furnace according to claim 1, wherein: the cross-sectional area of the annular air inlet shell (13) is larger than that of the annular air outlet shell (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121965377.2U CN215799807U (en) | 2021-08-20 | 2021-08-20 | Atmosphere protective cover of electroslag furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121965377.2U CN215799807U (en) | 2021-08-20 | 2021-08-20 | Atmosphere protective cover of electroslag furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215799807U true CN215799807U (en) | 2022-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121965377.2U Active CN215799807U (en) | 2021-08-20 | 2021-08-20 | Atmosphere protective cover of electroslag furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215799807U (en) |
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2021
- 2021-08-20 CN CN202121965377.2U patent/CN215799807U/en active Active
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