CN201321470Y - Composite sealing ring for sealing RH vacuum chamber - Google Patents
Composite sealing ring for sealing RH vacuum chamber Download PDFInfo
- Publication number
- CN201321470Y CN201321470Y CNU2008202338953U CN200820233895U CN201321470Y CN 201321470 Y CN201321470 Y CN 201321470Y CN U2008202338953 U CNU2008202338953 U CN U2008202338953U CN 200820233895 U CN200820233895 U CN 200820233895U CN 201321470 Y CN201321470 Y CN 201321470Y
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Abstract
The utility model discloses a composite sealing ring for sealing an RH vacuum chamber, pertaining to the field of metallurgy vacuum refining. The composite sealing ring comprises a heat insulation sleeve, a fire resistant fiber layer and a heat resisting rubber layer, and is arranged to be a closed annular sealing ring. A fire resistant fiber layer tolerant to heat at 800 DEG C or higher is compounded at the outside of the heat resisting rubber layer, and the heat insulation sleeve is sheathed outside the fire resistant fiber layer. The composite sealing ring has the advantages that the high temperature resistance of the sealing ring is improved; the time of the operation of replacing the vacuum chamber is shortened; and the installation procedure of the sealing ring is simplified. The application of the sealing ring realizes the rapid replacement of the vacuum chamber under single station RH condition, meets the requirement of continuous casting to a plurality of furnaces of a slab casting machine by a single station RH single station RH condition,, and contributes to the increase in the operation rate of an RH refining furnace and the production efficiency of a continuous caster.
Description
Technical field
The invention belongs to metallurgical vacuum refinement field, particularly provide a kind of RH of being applicable to vacuum chamber quick-replaceable composite sealing ring, change vacuum chamber fast and improve RH the usefulness of the sealingly secure coefficient when normally using for single station RH fining furnace.
Background technology
In the current STEELMAKING PRODUCTION, external refining is improving the steel product quality, is enlarging kind, is reducing cost, optimizes aspect such as steel-smelting production process and bringing into play important effect, even has become the restricted link in the whole process of production.The RH vacuum-treat is an important way of external refining, and it has high efficient aspect smelting suprelow carbon steel, is the indispensable means of high added value steel grade such as production ultra low-carbon steel.
When adopting the RH method to handle molten steel, at first will ladle be sent into buggy ladle and handle the position, ladle lifting is immersed under the molten steel soaking tub, starts vacuum pump then.Along with vacuum indoor pressure descends, molten steel is inhaled in the vacuum chamber by soaking tub in the ladle.Because one of them soaking tub is equipped with tunger tube and is blown into argon gas, another does not have, and molten steel just begins to circulate repeatedly.Finish in working cycle that molten steel outgases, processing such as oxygen blast, chemical ingredients and temperature adjustment.In the molten steel circulating treatment procedure, owing to be subjected to the effect of the higher and swiftly flowing molten steel of temperature, soaking tub deteriorates very big, need often carry out the spray repair reparation, to keep the normal use of soaking tub.Once complete spray repair reparation usually needs about 30 minutes consuming time.Concerning the RH refining furnace of single station, this has restricted and has connected the raising of watering the stove number, occurs the situation that the continuous casting production link is waited for the external refining link inevitably, has limited the raising of the production efficiency of continuous caster.
Therefore how to avoid or what alleviate the problems referred to above is the key point of single station RH fining furnace.Head it off needs the actual condition in conjunction with single station RH, from improving capabilities of refractory materials, improving the spray repair service mode and many-sides such as operant level, quickening soaking tub replacing speed are studied, improved and improve.
Dock at the scene before the sealing material that uses need use at present and form the closed circular sealing-ring, and since on the low side, the bake process of sealing material thermotolerance sealing-ring empyreumatic situation is arranged, and can only in vacuum chamber replacing process, install, can't prepare in advance, increased the invalid replacing time, make whole vacuum chamber quick change time lengthening, cause a single station RH can't realize coupling with a platen base casting machine sequence casting.The utility model is from shortening non-cutting time, accelerating soaking tub replacing speed sets out, by improving the sealing-ring material, improved the thermotolerance of sealing ring material, and sealing material is prefabricated into the sealing-ring of closed circular, for being installed in advance on the standby vacuum chamber, realize that quick replacing of soaking tub provides basic assurance.
Summary of the invention
The purpose of this utility model is to provide a kind of RH of being applicable to vacuum chamber quick-replaceable composite sealing ring, changes vacuum chamber fast and improve RH the usefulness of the sealingly secure coefficient when normally using for single station RH fining furnace.
The utility model is by collet 1, and refractory fiber floor 2 and heat resistant rubber layer 3 are formed, and make closed circular, and adopt heat resistant rubber and the heat-resisting high temperature fiber material that is not less than 800 ℃ to be composited, the outer suit collet of the sealing-ring behind the fusion filamentary material.Composite sealing ring structure from inside to outside is respectively heat resistant rubber layer, refractory fiber floor and collet, and heat resistant rubber and refractory fiber floor heat are compound to be one, and collet is sleeved on the refractory fiber floor outside.
NEW TYPE OF COMPOSITE sealing-ring described in the utility model adopts heat resistant rubber and the heat-resisting high temperature fiber material that is not less than 800 ℃ to be composited.Realized that under the single station RH refining condition can in advance sealing-ring be placed in vacuum chamber and hot top cover connection, the demand with vacuum chamber is proceeded to toast has shortened non-cutting time, guaranteed to finish quick replacing at short notice between the two cover vacuum chambers.
In order to ensure sealing-ring high thermal resistance in use; the utility model adopts the way that coats one deck refractory fiber cloth on the composite seal surface; on the one hand composite seal is played a protective role; on the other hand, more strengthened temperature tolerance in the NEW TYPE OF COMPOSITE sealing-ring vacuum chamber bake process before use.
The utility model has saved former sealed rubber pipe and needed to dock the set-up procedure that forms the closed circular sealing-ring before vacuum chamber is changed.Simplified the sealing-ring installation sequence, provide basic assurance for realizing that soaking tub is changed fast.
The utility model advantage is, the resistance to elevated temperatures of the composite sealing ring of this RH of being used for refining furnace vacuum chamber is improved, can place sealing-ring in advance in vacuum chamber and hot top cover connection, and not worry that sealing-ring is burnt by the high temperature of the vacuum chamber that still need toast.Thereby shortened the activity duration of changing vacuum chamber.Composite sealing ring has saved former sealed rubber pipe and has needed to dock the set-up procedure that forms the closed circular sealing-ring before vacuum chamber is changed, and has simplified the sealing-ring installation sequence.By using this composite sealing ring, realized that vacuum chamber is changed fast under the single station RH condition, satisfied the needs of next single station RH of single station RH condition, helped to improve the operating rate and the continuous caster production efficiency of RH refining furnace a platen base casting machine sequence casting.
Description of drawings
Fig. 1 is a composite sealing ring section structure synoptic diagram of the present utility model.Wherein, collet 1, refractory fibre 2, heat resistant rubber 3.
Fig. 2 is an overall appearance synoptic diagram of the present utility model.
Embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present utility model is elaborated.
As shown in Figure 1, collet 1 described in the utility model, refractory fiber floor 2 is made by NEW TYPE OF COMPOSITE sealing material and collet, and makes the closed circular sealing-ring.
Sealing material is different with former sealing material.Former sealing material since on the low side, the bake process of sealing material thermotolerance sealing-ring empyreumatic situation is arranged, make sealing-ring reduce the effect of (losing) sealing.Therefore, former sealing-ring can only be installed in vacuum chamber replacing process, can't prepare in advance, has increased the auxiliary replacing time, makes whole vacuum chamber quick change time lengthening.So former sealing-ring can not adapt to the demand that two cover vacuum chambers are finished replacing at short notice.
Composite sealing ring is by improving the sealing material material, and sealing material and resistant to elevated temperatures filamentary material that routine is used is compound, form a kind of newly, heat-resisting complex body, suit collet again.Satisfied under the single station RH condition, in advance sealing-ring has been installed on vacuum chamber and hot top cover connection, and with the demand that vacuum chamber is proceeded to toast, has shortened non-cutting time, making two covers can finish quick replacing at short notice between vacuum chambers becomes possibility.And, owing to improved the thermotolerance of sealing material, burnt when having avoided the sealing-ring baking, thereby guaranteed the sealing effectiveness of sealing-ring.
Compare with former ring structure, the NEW TYPE OF COMPOSITE sealing material is prefabricated into closed circular.Thereby simplified the user in the on-the-spot operation that sealing material butt joint, binding is formed closed circular of refining temporarily.Also avoided because the part width size that the binding butt joint of sealing material joint is caused increases, and made sealing material can not put into sealing groove fully, pushed caused damage and cause by hot top cover.The hidden danger that this damage brought not only is to have reduced the work-ing life of sealing material, and unreal, the gas leakage of sealing is arranged, and can't reach the danger that required vacuum tightness requires.
Adopt NEW TYPE OF COMPOSITE sealing-ring described in the utility model, improved the temperature tolerance of sealing material, can place sealing-ring in advance in vacuum chamber and hot top cover connection, and not worry that sealing-ring is burnt by the high temperature of the vacuum chamber that still need toast.Thereby shortened the activity duration of changing vacuum chamber, realized that vacuum chamber is changed fast under the single station RH condition, made the coupling of a single station RH realization and a platen base casting machine sequence casting.And the NEW TYPE OF COMPOSITE sealing-ring has saved former sealed rubber pipe and has needed to dock the set-up procedure that forms the closed circular sealing-ring before vacuum chamber is changed, and has simplified the sealing-ring installation sequence, has improved the life-span of sealing-ring, has guaranteed the sealing effectiveness of sealing-ring.Provide basic assurance for realizing that soaking tub is changed fast.
Adopt NEW TYPE OF COMPOSITE sealing-ring described in the utility model, not only avoided RH vacuum chamber sealing-ring Yin Gaowen and empyreumatic problem has guaranteed the sealing effectiveness of sealing-ring, and simplified the sealing-ring installation sequence.Vacuum chamber is changed the time by shortening in the 10min more than the original 20min, has realized the vacuum chamber fast online replacement, has satisfied the needs of next single station RH of single station RH condition to a platen base casting machine sequence casting.
Above-described only is a kind of preferred embodiment of the utility model, allly applies for a patent equivalent variations and the modification that described shape, structure, feature and spirit are done according to the utility model, all should be encompassed in the scope of patent protection of the present utility model.
Claims (2)
1, a kind of composite sealing ring that is used for the sealing of RH vacuum chamber is characterized in that: be made up of collet (1), refractory fiber floor (2) and heat-resistant rubber hose (3); Composite sealing ring is made closed circular.
2, composite sealing ring according to claim 1, it is characterized in that: composite sealing ring structure from inside to outside is respectively heat resistant rubber layer, refractory fiber floor and collet, heat resistant rubber and refractory fiber floor heat are compound to be one, and collet is sleeved on the refractory fiber floor outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202338953U CN201321470Y (en) | 2008-12-31 | 2008-12-31 | Composite sealing ring for sealing RH vacuum chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202338953U CN201321470Y (en) | 2008-12-31 | 2008-12-31 | Composite sealing ring for sealing RH vacuum chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201321470Y true CN201321470Y (en) | 2009-10-07 |
Family
ID=41158856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202338953U Expired - Fee Related CN201321470Y (en) | 2008-12-31 | 2008-12-31 | Composite sealing ring for sealing RH vacuum chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201321470Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103361472A (en) * | 2013-06-28 | 2013-10-23 | 首钢总公司 | Method for plugging leakage point of annealing furnace |
| WO2014162058A1 (en) * | 2013-04-05 | 2014-10-09 | Metso Automation Oy | Seal |
| CN106948873A (en) * | 2017-04-07 | 2017-07-14 | 中国航发沈阳发动机研究所 | Seal structure between stators part |
| CN109707945A (en) * | 2018-12-05 | 2019-05-03 | 洛阳双瑞特种装备有限公司 | A kind of high temperature high voltage resistant compensator |
-
2008
- 2008-12-31 CN CNU2008202338953U patent/CN201321470Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014162058A1 (en) * | 2013-04-05 | 2014-10-09 | Metso Automation Oy | Seal |
| CN103361472A (en) * | 2013-06-28 | 2013-10-23 | 首钢总公司 | Method for plugging leakage point of annealing furnace |
| CN106948873A (en) * | 2017-04-07 | 2017-07-14 | 中国航发沈阳发动机研究所 | Seal structure between stators part |
| CN109707945A (en) * | 2018-12-05 | 2019-05-03 | 洛阳双瑞特种装备有限公司 | A kind of high temperature high voltage resistant compensator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 064404 Hebei province Qian'an city Yang Dian town Binhe village Shougang Qian'an iron and Steel Co., Ltd. Co-patentee after: Shougang Group Co. Ltd. Patentee after: Hebei Shougang Qian'an Steel Co., Ltd. Co-patentee after: Beijing Guangming Rubber Products Factory Address before: 064404 Hebei province Qian'an city Yang Dian town Binhe village Shougang Qian'an iron and Steel Co., Ltd. Co-patentee before: Capital Iron & Steel General Company Patentee before: Hebei Shougang Qian'an Steel Co., Ltd. Co-patentee before: Beijing Guangming Rubber Products Factory |
|
| CP01 | Change in the name or title of a patent holder | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20171231 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |