CN205821376U - A kind of shielding cover device for VD stove - Google Patents
A kind of shielding cover device for VD stove Download PDFInfo
- Publication number
- CN205821376U CN205821376U CN201620678408.9U CN201620678408U CN205821376U CN 205821376 U CN205821376 U CN 205821376U CN 201620678408 U CN201620678408 U CN 201620678408U CN 205821376 U CN205821376 U CN 205821376U
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- cover
- screening cover
- screening
- stove
- shielding
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Abstract
The utility model discloses a kind of shielding cover device for VD stove, including the cover being arranged on tank body upper end, cover is internal is cavity structure, and cover cross section is arc-shaped, is provided with screening cover inside cover, screening cover is conical structure, screening cover upper end is connected by chain is unsettled with cover, and screening cover is made up of multiple coil pipes, is communicated with coolant inside coil pipe, screening cover lower surface is provided with some dross nail, and screening cover maximum outside diameter is more than ladle diameter；This utility model is not only simple in structure, low cost, safe and reliable, and service life is long, can prevent slag splash from causing slag accumulation to affect the conduction of heat above screening cover, isolate thermal-radiating ability by force, and heat transmission is fast, can improve the quality of molten steel.
Description
Technical field
This utility model relates to VD stove field, a kind of shielding cover device for VD stove.
Background technology
VD stove, is the highly important equipment of one of Steel Refining system, according to the needs of production technology, furnace chamber this
Utilize vacuum system (being assembled by elements such as vacuum pump, vacuum measuring device, vacuum valves) by furnace chamber in particular space
Moieties is discharged, and in making furnace chamber, pressure is less than a normal atmosphere, and stove cavity space realizes vacuum state.Because VD system
Being a vacuum system relatively, the heat of its molten steel is concentrated mainly on tank interior.Tank body surrounding laying fireproof bricks forms
Cavity, radiations heat energy is then concentrated mainly on the cover directly over ladle.This is accomplished by screening cover to stop heat radiation to cover etc.
The damage that equipment causes.
The screening cover of original design was that the cincture of a kind of coil pipe cools down, the device having refractory material is built, along with screen in lower section in the past
Covering the increase in lid use cycle, the weakness of himself also begins to manifest.Need during due to ladle evacuation that argon is quiet to be stirred, in early stage
Above ladle, molten steel splash is very serious, resistance to material can stripping slowly, so it has certain use cycle, time one length will
Stripping comes off, and screening cover dismounting itself is very inconvenient, and it is longer that the screening cover that replacing is rolled off the production line builds the resistance to material cycle again by laying bricks or stones；Make online
Resistance to material come off after fall into ladle, molten steel point control composition can be caused the biggest negative effect again, steel quality risk is big.
Utility model content
Technical problem to be solved in the utility model is, for the shortcoming of above prior art, proposes one for VD
The shielding cover device of stove, is not only simple in structure, and low cost is safe and reliable, and service life is long, and slag splash can be prevented to screening cover
Causing slag to pile up and affect the conduction of heat above, isolate thermal-radiating ability by force, heat transmission is fast, can improve the matter of molten steel
Amount.
In order to solve above-mentioned technical problem, the technical solution of the utility model is achieved in the following ways: Yi Zhongyong
In the shielding cover device of VD stove, including being arranged on the cover of tank body upper end, cover is internal is cavity structure, and cover cross section is circular arc
Shape, is provided with screening cover inside cover, and screening cover is conical structure, and screening cover upper end is connected by chain is unsettled with cover,
Screening cover is made up of multiple coil pipes, is communicated with coolant inside coil pipe, and screening cover lower surface is provided with some dross nail, and screening cover
Maximum outside diameter is more than ladle diameter.
So, by the technical solution of the utility model, due to resistance to material of not tiing a knot below screening cover, molten steel slag then leads to
Cross dross nail and stick to edge under screening cover, when cover is opened to deposit position, then can be clear by the way of the most artificial removing
Except the slag that attachment is big, it is to avoid resistance to material of tiing a knot falls to cause in molten steel quality problems, so being greatly improved steel quality, structure
Simply, safe and reliable, service life is long, and screening cover maximum outside diameter is more than ladle diameter, when occurring leaking, then leads to
Cross screening cover structure guide functions, be drained to outside, it is to avoid enter in molten steel, cause quality problems, safe and reliable.
The technical scheme that this utility model limits further is:
Being previously described for the shielding cover device of VD stove, screening cover upper surface is provided with hanger, and chain is connected with hanger.
Being previously described for the shielding cover device of VD stove, the angle of screening cover cross section is 120 °-140 °, is so conducive to
To drainage, and increase area of heat transfer, improve heat transference efficiency, isolate thermal-radiating ability strong.
Being previously described for the shielding cover device of VD stove, the angle of screening cover cross section is 120 °.
Being previously described for the shielding cover device of VD stove, dross nail uses a diameter of Φ 10mm, the full thread of a length of 150mm
Bar, so can firmly adsorb big steel slag and nail in dross, uses full thread structure, increases the degree of roughness on surface.
Being previously described for the shielding cover device of VD stove, dross nail is L-shaped structure, and is vertically arranged on screening cover, so
Slag can be separated with screening cover, it is to avoid screening cover and slag Long Term Contact cause slag to pile up thus reduce heat transference efficiency.
The beneficial effects of the utility model are: due to resistance to material of not tiing a knot below screening cover, molten steel slag then passes through dross
Nail sticks to edge under screening cover, when cover is opened to deposit position, then can remove attachment by the way of the most artificial removing
Big slag, it is to avoid resistance to material of tiing a knot falls to cause in molten steel quality problems, so being greatly improved steel quality, simple in construction,
Safe and reliable, service life is long, and screening cover maximum outside diameter is more than ladle diameter, when occurring leaking, then by screen
Cover lid edge guide functions, be drained to outside, it is to avoid enter in molten steel, cause quality problems, safe and reliable；Dross nail is L-shaped
Structure, and be vertically arranged on screening cover, so slag can be separated with screening cover, it is to avoid screening cover is made with slag Long Term Contact
Become slag to pile up thus reduce heat transference efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the structural representation of screening cover in this utility model；
Wherein: 1-cover, 2-screening cover, 3-coil pipe, 4-dross nail, 5-chain, 6-hanger.
Detailed description of the invention
Below this utility model is described in further detail:
Embodiment 1
A kind of shielding cover device for VD stove that the present embodiment provides, including being arranged on the cover 1 of tank body upper end, cover
1 inside is cavity structure, and cover 1 cross section is arc-shaped, is provided with screening cover 2 inside cover 1, and screening cover 2 is conical structure,
Screening cover 2 upper surface is provided with hanger 6, and chain 5 is connected with hanger 6, and screening cover 2 is made up of four coil pipes 3, the internal connection of coil pipe 3
There are coolant, screening cover 2 lower surface to be provided with some dross nail 4, and the maximum outside diameter of screening cover 2 is more than ladle diameter；Shielding
The angle covering 2 cross sections is 120 °；Dross nail 4 employing a diameter of Φ 10mm, the Full threaded rod of a length of 150mm；Dross nail 4 is
L-shaped structure, and be vertically arranged on screening cover 2, so slag can be separated with screening cover, it is to avoid screening cover connects for a long time with slag
Touch cause slag pile up thus reduce heat transference efficiency.
Due to resistance to material of not tiing a knot below screening cover in the technical scheme of this sample embodiment, molten steel slag then passes through dross
Nail sticks to edge under screening cover, when cover is opened to deposit position, then can remove attachment by the way of the most artificial removing
Big slag, it is to avoid resistance to material of tiing a knot falls to cause in molten steel quality problems, so being greatly improved steel quality, simple in construction,
Safe and reliable, service life is long, and screening cover maximum outside diameter is more than ladle diameter, when occurring that screening cover leaks, then
By the guide functions of screening cover structure, it is drained to outside, it is to avoid enter in molten steel, cause quality problems, safe and reliable.
Above example only illustrates technological thought of the present utility model, it is impossible to limit protection model of the present utility model with this
Enclose, every according to the technological thought that the utility model proposes, any change done on the basis of technical scheme, each fall within this reality
Within the scope of novel protected.
Claims (6)
1., for the shielding cover device of VD stove, including being arranged on the cover (1) of tank body upper end, described cover (1) is internal is
Cavity structure, described cover (1) cross section is arc-shaped, it is characterised in that: it is provided with screening cover (2), institute in described cover (1) inside
Stating screening cover (2) is conical structure, and described screening cover (2) upper end is connected by chain (5) is unsettled with cover (1), described screen
Covering lid (2) to be made up of multiple coil pipes (3), described coil pipe (3) is internal is communicated with coolant, and described screening cover (2) lower surface is provided with
Some dross nail (4), and the maximum outside diameter of described screening cover (2) is more than ladle diameter.
Shielding cover device for VD stove the most according to claim 1, it is characterised in that: described screening cover (2) upper surface
Being provided with hanger (6), described chain (5) is connected with hanger (6).
Shielding cover device for VD stove the most according to claim 1, it is characterised in that: described screening cover (2) cross section
Angle be 120 °-140 °.
Shielding cover device for VD stove the most according to claim 3, it is characterised in that: described screening cover (2) cross section
Angle be 120 °.
Shielding cover device for VD stove the most according to claim 1, it is characterised in that: described dross nail (4) uses straight
Footpath is Φ 10mm, the Full threaded rod of a length of 150mm.
Shielding cover device for VD stove the most according to claim 5, it is characterised in that: described dross nail (4) is L-shaped knot
Structure, and be vertically arranged on screening cover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678408.9U CN205821376U (en) | 2016-06-30 | 2016-06-30 | A kind of shielding cover device for VD stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620678408.9U CN205821376U (en) | 2016-06-30 | 2016-06-30 | A kind of shielding cover device for VD stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205821376U true CN205821376U (en) | 2016-12-21 |
Family
ID=57567830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620678408.9U Active CN205821376U (en) | 2016-06-30 | 2016-06-30 | A kind of shielding cover device for VD stove |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205821376U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109897942A (en) * | 2017-12-07 | 2019-06-18 | 江苏天工工具有限公司 | A kind of vacuum degasser of high-speed steel |
-
2016
- 2016-06-30 CN CN201620678408.9U patent/CN205821376U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109897942A (en) * | 2017-12-07 | 2019-06-18 | 江苏天工工具有限公司 | A kind of vacuum degasser of high-speed steel |
| CN109897942B (en) * | 2017-12-07 | 2020-10-13 | 江苏天工工具有限公司 | Vacuum degassing device for high-speed steel |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |