CN202688369U - Ruhstahl hausen (RH) vacuum refining furnace dip pipe device - Google Patents
Ruhstahl hausen (RH) vacuum refining furnace dip pipe device Download PDFInfo
- Publication number
- CN202688369U CN202688369U CN 201220388194 CN201220388194U CN202688369U CN 202688369 U CN202688369 U CN 202688369U CN 201220388194 CN201220388194 CN 201220388194 CN 201220388194 U CN201220388194 U CN 201220388194U CN 202688369 U CN202688369 U CN 202688369U
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- China
- Prior art keywords
- refining furnace
- vacuum refining
- lining
- pipe device
- structure body
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model relates to a vacuum refining furnace, namely a ruhstahl hausen furnace (RH furnace), in the metallurgical steel industry, in particular to an RH vacuum refining furnace dip pipe device. The RH vacuum refining furnace dip pipe device comprises a steel structural body, refractory castable arranged on the outer wall of the steel structural body, lining magnesite-chrome bricks arranged on the inner wall of the steel structural body and anchoring parts welded to the periphery of the steel structural body and uniformly distributed. Downgrade flow materials are filled in gaps between the lining magnesite-chrome bricks and the steel structural body. The RH vacuum refining furnace dip pipe device is characterized in that the lining magnesite-chrome bricks are arranged in staggered mode, a two-layer support plate is arranged between the lining magnesite-chrome bricks and the steel structural body, wedge grooves are arranged on inner walls of the lining magnesite-chrome bricks, one end of the support plate is welded to the steel structural body, and the other end of the support plate is connected in the wedge grooves of the lining magnesite-chrome bricks in inserting mode. The RH vacuum refining furnace dip pipe device has the advantages that due to the structure, integrity of lining is strengthened, generation of pits can be effectively avoided, and the RH vacuum refining furnace dip pipe device is long in service life.
Description
Technical field
The utility model relates to a kind of vacuum refining furnace (RH stove) in the metallurgical steel-making industry, relates in particular to a kind of RH vacuum refining furnace dip pipe device.
Background technology
RH vacuum-treat technology is that a kind of technique is advanced, the multi-functional secondary refining method of energy Effective Raise steel quality.The refractory materials that the RH vacuum-treat require to be used can bear the strong chemical action of extremely cold very hot, thump, high vacuum condition and various basicity slag, alloying constituent.Soaking tub is the swiftly flowing passage of molten steel, working temperature up to 1630 ℃ about.Because of periodical operation and long-time the immersion in molten steel and the slag liquid, its overall performance is required the most harshness, be the weakest link of RH a refining unit.
Soaking tub is to be made of hardware and refractory materials, and steel structure body cylindraceous is fixed on the center, and the annular magnesia chrome brick of pre-assembled mistake is liner, fills steel structure body external application corundum pouring material between liner and the steel structure body with self-flowing material.Traditional soaking tub liner is comprised of two rings or three ring magnesia chrome bricks, and there is circumferential weld in the junction of every ring magnesia chrome brick; Circumferential weld between ring under the washing away of flow at high speed molten steel and ring at first deterioration forms pit gradually, and the molten steel of high temperature forms eddy current at this, deteriorates obviously faster than other places, has destroyed the globality of liner, even has caused the steel accident of wearing.
On the other hand because brick plate is arranged on the lower end of soaking tub; by the mould material protection that approximately 100mm is thick; along with the continuous erosion of soaking tub lower end mould material, the crack occurs and peel off; the supporting plate that is used for the support liner tile is exposed to molten steel and is dissoluted very soon, causes liner tile to sink the soaking tub life-span is significantly reduced owing to losing to support.
The utility model content
In order to solve the problems of the technologies described above, the utility model provides a kind of globality that can strengthen liner, can effectively avoid the appearance of pit, the RH vacuum refining furnace dip pipe device of long service life.
The purpose of this utility model is to realize like this.
According to RH vacuum refining furnace dip pipe device of the present utility model, comprise steel structure body, be located at the refractory castable of steel structure body outer wall, place the liner magnesia chrome brick of steel structure body inwall and be welded in steel structure body equally distributed anchoring piece on every side, gap-fill at liner magnesia chrome brick and steel structure body has self-flowing material, it is characterized in that described liner magnesia chrome brick employing is crisscross arranged, between liner magnesia chrome brick and steel structure body, be provided with double-layer supporting-board, and at the inwall of liner magnesia chrome brick webge slot is set, described supporting plate one end is welded on the steel structure body, and the other end is plugged in the webge slot of liner magnesia chrome brick.
The beneficial effects of the utility model are: with because soaking tub has adopted said structure, changed original structure design, it is arranged in a crossed manner that the liner magnesia chrome brick adopts, and effectively improved the globality of liner.To adopt double layer design for the supporting plate that supports liner tile simultaneously; and bury in magnesia chrome brick it inner; even the crack occurs in the soaking tub mould material, also can protect the supporting plate of holding brick not by melting loss when melting loss comes off; can effectively prevent coming off of liner tile, obviously improved the work-ing life of RH soaking tub.
Description of drawings
Below in conjunction with the drawings and specific embodiments to further detailed explanation of the utility model.
Fig. 1 is the structural representation of the utility model soaking tub device.
Fig. 2 is the utility model liner magnesia chrome brick stretch-out view arranged in a crossed manner.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Such as Fig. 1, shown in Figure 2, RH vacuum refining furnace dip pipe device of the present utility model, comprise steel structure body 3, be located at the refractory castable 4 of steel structure body 3 outer walls, place the liner magnesia chrome brick 1 of steel structure body 3 inwalls and be welded in steel structure body 3 equally distributed anchoring piece 5 on every side, gap-fill at liner magnesia chrome brick 1 and steel structure body 3 has self-flowing material 2, it is characterized in that described liner magnesia chrome brick 1 employing is crisscross arranged, this rear inner lining magnesia chrome brick 1 arranged in a crossed manner has formed a ring brick structure, encircle brick masonries with traditional soaking tub liner tile by two rings or three, having obvious circumferential weld compares, avoided the appearance of straight joint, strengthen the globality of liner, can effectively avoid the appearance of pit phenomenon.
The utility model is provided with double-layer supporting-board 6 between liner magnesia chrome brick 1 and steel structure body 3, and at the inwall of liner magnesia chrome brick 1 webge slot is set, and described supporting plate 6 one ends are welded on the steel structure body 3, and the other end is plugged in the webge slot of liner magnesia chrome brick 1.Because liner is provided with webge slot in magnesia chrome brick, be connected in one by supporting plate and steel structure body, and supporting plate inserted in the magnesia chrome brick, thereby avoid since molten steel by the mould material crack or fall material and invade the structural part place, supporting plate is exposed to causes the supporting plate melting loss in the molten steel, cause the generation of magnesia chrome brick subsidence accident.The utility model has adopted double-layer supporting-board to have higher security, has prolonged the work-ing life of soaking tub.
Claims (1)
1. RH vacuum refining furnace dip pipe device, comprise steel structure body, be located at the refractory castable of steel structure body outer wall, place the liner magnesia chrome brick of steel structure body inwall and be welded in steel structure body equally distributed anchoring piece on every side, gap-fill at inwall magnesia chrome brick and steel structure body has self-flowing material, it is characterized in that described liner magnesia chrome brick employing is crisscross arranged, between liner magnesia chrome brick and steel structure body, be provided with double-layer supporting-board, and at the inwall of liner magnesia chrome brick webge slot is set, described supporting plate one end is welded on the steel structure body, and the other end is plugged in the webge slot of liner magnesia chrome brick.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220388194 CN202688369U (en) | 2012-08-07 | 2012-08-07 | Ruhstahl hausen (RH) vacuum refining furnace dip pipe device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220388194 CN202688369U (en) | 2012-08-07 | 2012-08-07 | Ruhstahl hausen (RH) vacuum refining furnace dip pipe device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202688369U true CN202688369U (en) | 2013-01-23 |
Family
ID=47544016
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220388194 Expired - Lifetime CN202688369U (en) | 2012-08-07 | 2012-08-07 | Ruhstahl hausen (RH) vacuum refining furnace dip pipe device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202688369U (en) |
-
2012
- 2012-08-07 CN CN 201220388194 patent/CN202688369U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
|
| CX01 | Expiry of patent term |