CN201704372U - High-temperature furnace roll adopting air-cooling technology - Google Patents
High-temperature furnace roll adopting air-cooling technology Download PDFInfo
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- CN201704372U CN201704372U CN2010201549831U CN201020154983U CN201704372U CN 201704372 U CN201704372 U CN 201704372U CN 2010201549831 U CN2010201549831 U CN 2010201549831U CN 201020154983 U CN201020154983 U CN 201020154983U CN 201704372 U CN201704372 U CN 201704372U
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- inner sleeve
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- temperature furnace
- roller
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Abstract
The utility model discloses a high-temperature furnace roll adopting an air-cooling technology, comprising a roll core (1) and a carbon sleeve (7) sheathed on the outside of the roll core (1); an inner sleeve (2) is added at the inner part of the roll core, fixed in the roll core by a shoulder ring (3), and provided with an air hole (4); an air ventilation pipe (5) which penetrates through an operation-side shaft head of the roll core is arranged; the left end of the ventilation pipe is provided with a rotary joint (6) which is provided with an air inlet hole and an air outlet hole; and the right end of the ventilation pipe extends into the inner part of the roll core and is communicated with the end part of the inner sleeve. Therefore, the nitrogen enters the roll core from the air inlet of the rotary joint along the outer walls of the ventilation pipe and the inner sleeve; and under the function of pressure difference, the nitrogen is exhausted for use by the ventilation pipe along the inner wall of the inner sleeve. The high-temperature furnace roll has the advantages of high temperature resistance, long service life, capability of improving the strength thereof and the like.
Description
Technical field
The utility model relates to furnace roller, particularly relates to a kind of silicon steel continuous annealing furnace furnace roller.
Background technology
Furnace roller commonly used has two kinds in the silicon steel annealing furnace at present: a kind of water cooled rolls for using in non-oxidation furnace, a kind of carbon cover roller for using in protective atmosphere.
Water cooled rolls: be used for non-oxidation furnace,, do not have the high temperature steel of the corresponding trade mark, thereby the mode of employing body of roll water-cooled is to reduce temperature owing to furnace temperature height (the highest furnace temperature temperature can reach 1200 ℃).Like this, the problem of selection has solved, but has also brought other problems.The first, body of roll dewfall may appear, can cause detrimentally affect to the band rigidity; The second, may exist the body of roll to leak and cause the possibility of compressor emergency shutdown.
Carbon cover roller: use in protective atmosphere, roll surface is the carbon cover, and roller core uses high temperature steel.At present, the highest optional trade mark of roller core material is Cr28Ni48W5Co3, has use properties preferably when furnace temperature is no more than 1000 ℃, and when furnace temperature surpasses 1000 ℃, will obviously shorten the work-ing life of roller core.
Along with the appearance of silicon steel novel process, claimed gas heating and soaking zone will reach the high temperature at 1000～1100 ℃.To this, traditional carbon cover roller can not meet the demands.
Summary of the invention
Technical problem to be solved in the utility model is: at silicon steel annealing furnace furnace temperature 1000～1100 ℃ the time, traditional optional material of carbon cover roller core has arrived resistance to extreme temperature, roller core short practical situation in work-ing life, a kind of high-temperature furnace roller that adopts air cooling technology is provided, this high-temperature furnace roller is by using inner sleeve+logical nitrogen refrigerative method, reduce the roller core temperature, improve roller core intensity, prolong the work-ing life of roller core.
The technical scheme that its technical problem that solves the utility model adopts is: the inside of roller core increases an inner sleeve, and inner sleeve is fixed in the roller core by the shoulder ring, and this inner sleeve is provided with pore.Be provided with a ventpipe through roller core fore side spindle nose, the left end of this ventpipe is equipped with a swivel joint, and air inlet port, production well are arranged on the swivel joint; The inside that the right-hand member of this ventpipe stretches into roller core is communicated with the inner sleeve end; Like this, nitrogen enters roller core from the inlet mouth of swivel joint along ventpipe, inner sleeve outer wall, under differential pressure action, is discharged by ventpipe along the inner sleeve inwall.
The utility model is compared with traditional carbon cover roller has following main advantage:
1. under the identical operating mode, roller core temperature of the present utility model is low more than 50 ℃ than conventional carbon cover roller, obviously improves furnace roller work-ing life at high temperature.
2. be provided with inner sleeve in the roller core, inner sleeve is fixed with the roller core inwall by the shoulder ring, can improve roller core intensity, forms the flow of nitrogen gas passage simultaneously.
3. inner sleeve is provided with pore, can reduce bad temperature of shoulder, prevent that passage from stopping up.
4. be provided with a ventpipe through the fore side spindle nose, swivel joint arranged in the ventpipe end, nitrogen by the inlet mouth on the swivel joint along ventpipe, the air inlet of roller core outer wall, by flowing out along ventpipe in the inner sleeve.Can reduce the swivel joint temperature, improve heat transfer efficiency.
5. effusive nitrogen can be reused after by the interchanger cooling in the roller core, and the consumption of realization theory nitrogen is zero.
6. on the nitrogen circulation pipeline, be provided with booster fan, can compensate the pipe network drag losses, realize the reciprocation cycle of nitrogen.
Description of drawings
Fig. 1 is the utility model air cooling roll structure synoptic diagram.
Fig. 2 is that nitrogen circulation is utilized system diagram.
Among the figure: 1. roller core; 2. inner sleeve; 3. shoulder encircles; 4. pore; 5 ventpipes; 6. swivel joint; 7. carbon cover; 8. spindle nose; 9. interchanger; 10. booster fan; 11. first trip valve; 12. second trip valve; 13. the 3rd trip valve; 14. pressure unit; 15. hydrogen, oxygen analyser.
Embodiment
The utility model be a kind of on existing carbon cover roller basis improved high-temperature furnace roller, its structure as shown in Figure 1: comprise that roller core 1 and the outside with it carbon that interlocks overlap 7.Inside at roller core 1 increases an inner sleeve 2, and this inner sleeve is provided with pore 4 and shoulder ring 3 structures, and inner sleeve is fixed in the roller core by shoulder ring 3.Be provided with a ventpipe 5 through roller core fore side spindle nose, the left end of this ventpipe is equipped with a swivel joint 6, and air inlet port, production well are arranged on the swivel joint, and the inside that the right-hand member of this ventpipe stretches into roller core is communicated with the inner sleeve end; Like this, nitrogen enters roller core from the inlet mouth of swivel joint along ventpipe, inner sleeve outer wall, under differential pressure action, and the nitrogen after discharge using by ventpipe along the inner sleeve inwall.
After ventpipe 5 and the inner sleeve 2 that has pore 4 and shoulder ring 3 structures assembled, in the roller core 1 of packing into.Behind the location, inner sleeve and the welding of roller core inwall is fixing near the roller core back side.At the left end (fore side) of roller core and the right-hand member (back side) of roller core spindle nose 8 is installed afterwards, and welding is fixing, roller core fore side spindle nose has the shoulder hole of offering in advance, can pass ventpipe 5.Nitrogen is flowed into along ventpipe, inner sleeve outer wall by the inlet mouth of swivel joint, reaches behind the end by flowing out in inner sleeve, the ventpipe.The flow direction is shown in Fig. 1 arrow.
Set pore 4 on inner sleeve, its effect is: can reduce the temperature of shoulder ring 3, prevent that passage from stopping up.
The utility model high-temperature furnace roller uses in protective atmosphere, and the nitrogen that cooling is used can not cause detrimentally affect to furnace atmosphere.So use high pure nitrogen.Nitrogen after the use can use repeatedly by the recycle system,, consumption reduction energy-conservation to realize.
The structure of the described recycle system is as shown in Figure 2: mainly be made up of blowdown pipe, inlet manifold, the house steward that gives vent to anger, bleeder, interchanger 9 and booster fan 10.Be respectively equipped with first automatic stop valve 11, second automatic stop valve 12, the 3rd automatic stop valve 13 on blowdown pipe, inlet manifold, bleeder, the inlet manifold is provided with pressure unit 14, and the booster fan outlet is provided with hydrogen, oxygen analyser 15.
Before the utility model high-temperature furnace roller comes into operation, close second automatic stop valve 12 earlier, open first automatic stop valve 11 and the 3rd automatic stop valve 13, start booster fan 10 then, roller core 1 is purged.After oxygen level is up to standard, close the 3rd automatic stop valve, open second automatic stop valve, treat that pressure unit 14 places reach set(ting)value, close first automatic stop valve, enter normal operating conditions.
During the utility model high-temperature furnace roller works better, nitrogen enters each furnace roller through the inlet manifold by air intake branch to the inlet mouth of swivel joint 6, and the nitrogen gas stream in the roller core 1 is to seeing the indication of Fig. 1 arrow.After the heat exchange, nitrogen is flowed out by the air outlet of swivel joint 6, is pooled to the house steward that gives vent to anger, and is cooled to about 60 ℃ through interchanger 9 again, after booster fan 10 superchargings, reenters inlet manifold and finishes once circulation.
When hydrogen, when oxygen analyser 15 detection level exceed standard, start purging, diffusion system, close second automatic stop valve, open first automatic stop valve and the 3rd automatic stop valve, guarantee system safety operation.
Claims (3)
1. high-temperature furnace roller that adopts air cooling technology, comprise roller core (1) and the outside with it carbon cover (7) that interlocks, it is characterized in that: the inside at roller core increases an inner sleeve (2), and inner sleeve is fixed in the roller core by shoulder ring (3), and this inner sleeve is provided with pore (4); Be provided with a ventpipe through roller core fore side spindle nose (5), the left end of this ventpipe is equipped with a swivel joint (6), and air inlet port, production well are arranged on the swivel joint, and the inside that the right-hand member of this ventpipe stretches into roller core is communicated with the inner sleeve end.
2. high-temperature furnace roller according to claim 1 is characterized in that: shoulder ring (3) is the parts of inner sleeve (2).
3. high-temperature furnace roller according to claim 1, it is characterized in that: also comprise the recycle system, this recycle system mainly is made up of blowdown pipe, inlet manifold, the house steward that gives vent to anger, bleeder, interchanger (9) and booster fan (10), on blowdown pipe, inlet manifold and bleeder, be respectively equipped with an automatic stop valve, the inlet manifold is provided with pressure unit (14), and the booster fan outlet is provided with hydrogen, oxygen analyser (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201549831U CN201704372U (en) | 2010-04-06 | 2010-04-06 | High-temperature furnace roll adopting air-cooling technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201549831U CN201704372U (en) | 2010-04-06 | 2010-04-06 | High-temperature furnace roll adopting air-cooling technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201704372U true CN201704372U (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201549831U Expired - Fee Related CN201704372U (en) | 2010-04-06 | 2010-04-06 | High-temperature furnace roll adopting air-cooling technology |
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| CN (1) | CN201704372U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818242A (en) * | 2010-04-06 | 2010-09-01 | 中冶南方(武汉)威仕工业炉有限公司 | High-temperature furnace roller adopting air cooling technology |
| CN102676790A (en) * | 2012-05-31 | 2012-09-19 | 中冶南方(武汉)威仕工业炉有限公司 | Three-roller type roller stabilizing device in stainless steel bright annealing furnace |
| CN102828013A (en) * | 2012-08-27 | 2012-12-19 | 中冶南方(武汉)威仕工业炉有限公司 | Cold rolling continuous strip steel annealing furnace |
| CN108126983A (en) * | 2017-12-01 | 2018-06-08 | 中南大学 | A kind of deep cooling rolling refrigeration roll and the rolling system with the roll, method |
-
2010
- 2010-04-06 CN CN2010201549831U patent/CN201704372U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818242A (en) * | 2010-04-06 | 2010-09-01 | 中冶南方(武汉)威仕工业炉有限公司 | High-temperature furnace roller adopting air cooling technology |
| CN102676790A (en) * | 2012-05-31 | 2012-09-19 | 中冶南方(武汉)威仕工业炉有限公司 | Three-roller type roller stabilizing device in stainless steel bright annealing furnace |
| CN102828013A (en) * | 2012-08-27 | 2012-12-19 | 中冶南方(武汉)威仕工业炉有限公司 | Cold rolling continuous strip steel annealing furnace |
| CN102828013B (en) * | 2012-08-27 | 2015-01-07 | 中冶南方(武汉)威仕工业炉有限公司 | Cold rolling continuous strip steel annealing furnace |
| CN108126983A (en) * | 2017-12-01 | 2018-06-08 | 中南大学 | A kind of deep cooling rolling refrigeration roll and the rolling system with the roll, method |
| CN108126983B (en) * | 2017-12-01 | 2019-09-27 | 中南大学 | A kind of deep cooling rolling refrigeration roll and the rolling system with the roll, method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110112 Termination date: 20140406 |