CN201343549Y - Stationary multifunctional top lance sealing protection device for molten steel vacuum refining - Google Patents
Stationary multifunctional top lance sealing protection device for molten steel vacuum refining Download PDFInfo
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- CN201343549Y CN201343549Y CNU2009200676574U CN200920067657U CN201343549Y CN 201343549 Y CN201343549 Y CN 201343549Y CN U2009200676574 U CNU2009200676574 U CN U2009200676574U CN 200920067657 U CN200920067657 U CN 200920067657U CN 201343549 Y CN201343549 Y CN 201343549Y
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Abstract
The utility model belongs to the technical field of metallurgical industry, in particular to a stationary multifunctional top lance sealing protection device for molten steel vacuum refining. A protection device body comprises an upper guide frame, a sealing gasbag, a clamping cap, a water-cooling internal sleeve, a compensator component and a residue scratching board, and the components are connected with a top lance in an approaching manner; the upper guide frame is connected with the clamping cap through a bolt; a sealing gasbag subassembly positioned between the upper guide frame and the clamping cap is closely matched with the upper guide frame; the clamping cap is connected with the water-cooling internal sleeve through the bolt; the water-cooling internal sleeve is connected with the compensator component through the bolt; and the compensator component is connected with the residue scratching board through the bolt. The stationary multifunctional top lance sealing protection device effectively solves the problems that the sealing gasbag and a sealing stuffing are burnt out, realizes normal sealing in a vacuum treatment state, has simple structure, greatly prolongs the service life of the device, and lowers the productive maintenance cost.
Description
Technical field
The utility model belongs to technical field of metallurgy industry, is specifically related to the fixed multifunctional top-gun seal protecting device of a kind of molten steel vacuum refinement.
Background technology
Modern RH (molten steel vacuum refinement) vacuum degasser all disposes multifunctional top-gun; refinery practices such as oxygen decarburization, chemical heating, vacuum tank heating need during in order to the realization liquid steel refining; for solving the top rifle in vacuum-treat and heating work process and the elevated-temperature seal problem between the vacuum tank, the reliable vacuum-sealing protector of advanced design is very important.The RH top rifle seal protecting device of current domestic and international practicality mainly contains on the structure platform two kinds of consolidated forms and oscilaltion structural formula.
Fixed on the structure platform: as seal protecting device to be fixed on the structure platform of factory building; adopt band cylinder expansion joint realize with vacuum tank between be connected; seal protecting device is separated with vacuum tank; be installed on the stationary platform; not only can reduce absolute altitude requirement, and be convenient to the maintenance and the maintenance of seal protecting device factory building.The vacuum-sealing protector is fixed on hot bending pipe top, the baking of the high-temperature gas that is subjected to gushing out in the groove, and sealing burns out easily with air bag, can't normally seal, and influences normal handling technology; During mobile vacuum tank, seal protecting device breaks away from vacuum tank, and hot gas rises in a large number in the groove, and electric installations such as the telescopic joint of seal protecting device, limiting cylinder bit switch are often burnt out; The damage of electric installation makes can't confirm when moving groove whether telescopic joint puts in place, and it is bad often to cause telescopic joint to draw, and causes industrial accident; Seal protecting device is installed in directly over the cell body, takies the space that hangs out of vacuum tank and hot bending pipe, is unfavorable for lifting up into and hanging out of cell body, and drives a vehicle and also often draw bad telescopic joint when hanging groove, causes work accident.
Oscilaltion structural formula: top rifle seal protecting device is suspended on the rifle body by high-test chain, can promotes with the top rifle when seal protecting device is not worked and leave high-temperature area, improve the work-ing life of seal protecting device.Seal protecting device lower flange and top muzzle flange adopt the pneumatic locking device that is promoted by both sides, utilize the inclined-plane tightly to lock, and the power of tightly locking is big, and sealing is reliable, reduce the wearing and tearing between pressure bladder and the rifle body, prolong the life-span of air bag.But this equipment cost is higher, and it is many to take up room; During mobile vacuum tank, seal protecting device breaks away from vacuum tank, and hot gas rises in a large number in the groove, and electric installations such as the limiting cylinder bit switch of seal protecting device are often burnt out; Seal protecting device is installed in directly over the cell body, takies the space that hangs out of vacuum tank and hot bending pipe, is unfavorable for lifting up into and hanging out of cell body, causes work accident.
In sum, studying molten steel vacuum refinement multifunctional top-gun seal protecting device a kind of simple in structure, easy to use, with low cost is those skilled in the art's goal in research.
Summary of the invention
The purpose of this utility model is to propose the fixed multifunctional top-gun seal protecting device of a kind of molten steel vacuum refinement simple in structure, easy to use, with low cost.
This top rifle seal channel device is used for modern RH vacuum deaeration refining equipment, its effect is in refining process, keep vacuum chamber when the rifle up-and-down movement of top, still can be in vacuum state, solve the top rifle in vacuum-treat and heating work process and the elevated-temperature seal problem between the vacuum tank, improved the refining quality of molten steel.
The fixed multifunctional top-gun seal protecting device of the molten steel vacuum refinement that the utility model proposes, this protector body 1 by overlap 5 in top guide frame 2, pressure bladder assembly 3, friction top 4, the water-cooled, loop expansion pipe assembly 6 and dreg scraper 7 form, be abutted against with top rifle 8 from top to bottom with upper-part; Wherein, top guide frame 2 and friction top 4 are connected by bolt, between the pressure bladder assembly 3 between top guide frame 2 and the friction top 4 and top guide frame 2, cooperate closely, cover 5 is connected by bolt in friction top 4 and the water-cooled, cover 5 and loop expansion pipe assembly 6 are connected by bolt in the water-cooled, and loop expansion pipe assembly 6 and dreg scraper 7 are connected by bolt; Loop expansion pipe assembly 6 is by loop expansion pipe 10, guide pipe 11, guide pillar 12, screw arbor assembly 13, N
2Air curtain cooling room 14 and cooling air curtain access port 15 are formed, and loop expansion pipe 10 is placed in outside the top rifle 8, and guide pipe 11 has 4, is distributed on the upper flange of loop expansion pipe 10, and is enclosed within outside the guide pillar 12, and loop expansion pipe 10 bottoms are N
2Air curtain cooling room 14, loop expansion pipe 10 bottoms one side have cooling air curtain access port 15.
In the utility model, pressure bladder assembly 3 is made up of intermediate ring 19, joint 20, support ring 21, air bag 22 and round steel 23, and intermediate ring 19 is positioned on the corresponding step of friction top 4, the step corresponding matching of its upper surface and top guide frame 2 lower surfaces; Joint 20 is positioned on the intermediate ring 19 1 end steps, and support ring 21 is positioned on intermediate ring 19 the other end steps, and round steel 23 is fixed in friction top 4 one sides.
In the utility model, cover 5 is made up of refrigeration cycle water chamber 16, water coolant access port 17 and water coolant exit 18 in the water-cooled, refrigeration cycle water chamber 16 is an annular housing, refrigeration cycle water chamber 16 is placed in outside the top rifle 8, and refrigeration cycle water chamber 16 tops are connected with water coolant access port 17 and water coolant exit 18 respectively.
In the utility model, pressurized gas N
2Enter N
2Air curtain cooling room 14, form the heat insulation gas curtain of blast air, stopped in the groove hot gas, add heavy in section refrigeration cycle water chamber 16 simultaneously the damage of sealed packing 24 and air bag 22, greatly the high-temperature gas gushed out in the vacuum tank of cooling has reduced the burn of waste gas to sealed packing 24 and air bag 22.
In the utility model, protector body 1 is fixed on hot bending pipe 9 tops of vacuum tank.
Working process of the present utility model is as follows:
1, top rifle seal protecting device is fixed on the vacuum tank hot bending pipe,, passes seal protecting device during the work of top rifle and enter vacuum tank along with vacuum trough body moves together.
2, this moment, RH can deal with the work, when the top rifle is inserted into the position of setting, the valve events of control air bag intake and exhaust, make 3 moments of pressure bladder assembly be full of the gas of rated pressure, this moment, inwardly the air bag 22 of drum was just tightly embraced top rifle 8, eliminate the gap here, played vacuum-packed effect.
3, in treating processes, when top rifle 8 needed displacement, the magnetic valve commutation made pressure bladder 22 quick exhausts, unclamps top rifle 8, and after the displacement, the magnetic valve valve commutates again, and pressure bladder 22 is inflated again, keeps the vacuum-sealing state again.
4, because top rifle seal protecting device is in the top burner of hot bending pipe; high temperature is scorching hot; work under bad environment; for preventing seal protecting device; especially wherein rubber-bag, O type circle and packing are roasted bad; special recirculated cooling water cover and the annular air curtain of having designed on the protector body is to drive away heat, the trouble-free service of assurance device.
Seal protecting device is fixed on the vacuum tank hot bending pipe; along with vacuum trough body moves together; the top rifle passes seal protecting device when working and enters vacuum tank; carry out art breading; when the top rifle is not worked for a long time, burnt out by the hot gas in the vacuum tank, pass through turning handle for preventing seal protecting device; seal protecting device is rotated the rifle hole, top of leaving vacuum tank, heat insulation blind flange is changed over to rifle hole, vacuum tank top.Adopt this structure, cheap, do not take vacuum tank and hang out the space, help the replacing that hangs out of vacuum tank and hot bending pipe.
Pressure bladder of the present utility model is compared for sealing rubber ring air bag with traditional structure; owing to dexterously air bag is wrapped in structure formation on the steelframe; not only reduce the manufacture difficulty and the cost of manufacture of air bag greatly; also improve the replacing and the installation of air bag, improved the work-ing life of seal protecting device.
Advantage of the present utility model is:
Solve the pressure bladder of vacuum-sealing protector, the problem that burns out of sealed packing realizes the normal sealing of vacuum-treat state, guarantees the treatment process process.
Solve the handling space of cell body top, guarantee the lifting safety of vacuum tank and hot bending pipe, avoid work accident.
Improve automatism, reliability, minimizing manual work amount and the operation intensity of operation.
Simplified apparatus is formed, and improves the working conditions of equipment, improves equipment life greatly, reduces the production maintenance cost.
Description of drawings
Fig. 1 shows for the utility model assembly.
Fig. 2 is the structural diagrams of the utility model pressure bladder assembly 3.
Number in the figure: 1 is the protector body, and 2 is the top guide frame, and 3 is the pressure bladder assembly, and 4 is friction top, and 5 is cover in the water-cooled; 6 is the loop expansion pipe assembly, and 7 is dreg scraper, and 8 is the top rifle, and 9 is the hot bending pipe, and 10 is loop expansion pipe; 11 is guide pipe, and 12 is guide pillar, and 13 is screw arbor assembly, and 14 is N
2The air curtain cooling room, 15 are cooling air curtain access port, 16 are recirculated water cooling chamber, 17 water-ins for recirculated water cooling chamber 16,18 water outlets for recirculated water cooling chamber 16,19 is intermediate ring, and 20 is joint, and 21 is support ring, 22 is air bag, and 23 is round steel, and 24 is packing, and 25 is bolt.
Embodiment
Advance to illustrate the utility model below by embodiment
Embodiment 1: press Fig. 1-shown in Figure 2, molten steel vacuum refinement multifunctional top-gun seal protecting device, be stationary structure, this protector body 1 by overlap 5 in top guide frame 2, pressure bladder assembly 3, friction top 4, the water-cooled, loop expansion pipe assembly 6 and dreg scraper 7 form, be abutted against with top rifle 8 from top to bottom with upper-part; Wherein, top guide frame 2 and friction top 4 are connected by bolt, between the pressure bladder assembly 3 between top guide frame 2 and the friction top 4 and top guide frame 2, cooperate closely, cover 5 is connected by bolt in friction top 4 and the water-cooled, cover 5 and loop expansion pipe assembly 6 are connected by bolt in the water-cooled, and loop expansion pipe assembly 6 and dreg scraper 7 are connected by bolt; Loop expansion pipe assembly 6 is by loop expansion pipe 10, guide pipe 11, guide pillar 12, screw arbor assembly 13, N
2Air curtain cooling room 14 and cooling air curtain access port 15 are formed, and loop expansion pipe 10 is placed in outside the top rifle 8, and guide pipe 11 (totally 4) be distributed on the upper flange of loop expansion pipe 10, and be enclosed within outside the guide pillar 12, and loop expansion pipe 10 bottoms are N
2Air curtain cooling room 14, loop expansion pipe 10 bottoms one side have cooling air curtain access port 15.
By shown in Figure 2: pressure bladder assembly 3 is by intermediate ring 19, joint 20, support ring 21, air bag 22, round steel 23.Intermediate ring 19 is put on the corresponding step of friction top 4, simultaneously, and the step corresponding matching of the lower surface of upper surface and top guiding trestle 2; Joint 20 is welded on the intermediate ring 19, and interface is: outside screw R1/2; Support ring 21 is put on the step of intermediate ring 19, because air bag 22 is a rubber item, support ring 21 makes it indeformable, can better move during inflation; 23 in round steel is that the user mentions conveniently in order to install.
In the utility model, refrigeration cycle water chamber 16 and water coolant access port 17, water coolant exit 18 are arranged in the cover 5 in the water-cooled.
In the utility model, pressurized gas N
2Enter N
2Air curtain cooling room 14 forms the heat insulation gas curtain of blast air, stopped that hot gas is to the damage of sealed packing and air bag in the groove, add heavy in section refrigeration cycle water chamber simultaneously, greatly the high-temperature gas gushed out in the vacuum tank of cooling has reduced the burn of waste gas to sealed packing and air bag.
The seal protecting device of above-mentioned gained is used for certain RH refining engineering; what original design top rifle seal protecting device adopted is that structure platform is fixed, top rifle diameter 173CM, and (per 5 stove left and right sides air bags just are damaged to find in the production time that pressure bladder is often burnt out; cause vacuum leak); influence vacuum-treat, sealing device structure complexity, manufacture difficulty height; the production cost height; vacuum tank top is crowded, envrionment temperature height, problem such as maintenance difficulties is big.
Adopt the utility model with top rifle seal protecting device by bolting on companionflange on the hot bending pipe, when the top rifle was not worked, the rotary seal protector was isolated flange with blind plate, thereby made this device lifetime longer; Adopt skeleton pressure bladder assembly 3, pressure bladder assembly 3 diameters are 278MM, and airbag aeration mouth bore is R1/2; Heat insulation air film nozzle diameter 1MM forms the heat insulation gas curtain of blast air; Use the quick air extractor of VP-1601 type, realize pressure bladder holding tightly fast and unclamp the top rifle.
Implementation result: adopt the utility model pressure bladder not to be damaged, life-span greatly improves: and, do not have the vacuum leak problem because sealed state is good, and vacuum treated processing requirement is guaranteed: novel appts is simple and reasonable, environment is clean and tidy, safeguards and changes conveniently.
Claims (4)
1, the fixed multifunctional top-gun seal protecting device of a kind of molten steel vacuum refinement, it is characterized in that this protector body (1) is made up of cover (5), loop expansion pipe assembly (6) and dreg scraper (7) in the top guide frame (2), pressure bladder assembly (3), friction top (4), water-cooled, be abutted against with top rifle (8) from top to bottom with upper-part; Wherein, top guide frame (2) is connected by bolt with friction top (4), be positioned at and cooperate between pressure bladder assembly (3) and the top guide frame (2) between top guide frame (2) and the friction top (4) closely, friction top (4) is connected by bolt with the interior cover of water-cooled (5), cover (5) is connected by bolt with loop expansion pipe assembly (6) in the water-cooled, and loop expansion pipe assembly (6) is connected by bolt with dreg scraper (7); Loop expansion pipe assembly (6) is by loop expansion pipe (10), guide pipe (11), guide pillar (12), screw arbor assembly (13), N
2Air curtain cooling room (14) and cooling air curtain access port (15) are formed, and loop expansion pipe (10) is placed in outside the top rifle (8), and guide pipe (11) is 4, are distributed on the upper flange of loop expansion pipe (10), and are enclosed within outside the guide pillar (12), and loop expansion pipe (10) bottom is N
2Air curtain cooling room (14), loop expansion pipe (10) bottom one side has cooling air curtain access port (15).
2, the fixed multifunctional top-gun seal protecting device of molten steel vacuum refinement according to claim 1, it is characterized in that pressure bladder assembly (3) is made up of intermediate ring (19), joint (20), support ring (21), air bag (22) and round steel (23), intermediate ring (19) is positioned on the corresponding step of friction top (4), the step corresponding matching of its upper surface and top guiding trestle (2) lower surface; Joint (20) is positioned on intermediate ring (19) the one end steps, and support ring (21) is positioned on the step of intermediate ring (19), and round steel (23) is fixed in friction top (4) one sides.
3, the fixed multifunctional top-gun seal protecting device of molten steel vacuum refinement according to claim 1; it is characterized in that in the water-cooled that cover (5) is made up of refrigeration cycle water chamber (16), water coolant access port (17) and water coolant exit (18); refrigeration cycle water chamber (16) is an annular housing; refrigeration cycle water chamber (16) is placed in outside the top rifle (8), and refrigeration cycle water chamber (16) top is connected with water coolant access port (17) and water coolant exit (18) respectively.
4, the fixed multifunctional top-gun seal protecting device of molten steel vacuum refinement according to claim 1 is characterized in that protector body (1) is fixed on hot bending pipe (9) top of vacuum tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200676574U CN201343549Y (en) | 2009-02-12 | 2009-02-12 | Stationary multifunctional top lance sealing protection device for molten steel vacuum refining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200676574U CN201343549Y (en) | 2009-02-12 | 2009-02-12 | Stationary multifunctional top lance sealing protection device for molten steel vacuum refining |
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| Publication Number | Publication Date |
|---|---|
| CN201343549Y true CN201343549Y (en) | 2009-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200676574U Expired - Fee Related CN201343549Y (en) | 2009-02-12 | 2009-02-12 | Stationary multifunctional top lance sealing protection device for molten steel vacuum refining |
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| CN (1) | CN201343549Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080142A (en) * | 2010-12-17 | 2011-06-01 | 中国重型机械研究院有限公司 | Top lance automatic fixing system |
| CN102979975A (en) * | 2012-11-21 | 2013-03-20 | 中冶南方工程技术有限公司 | Vacuum water-cooling rotary joint |
| CN103305660A (en) * | 2013-05-29 | 2013-09-18 | 中国重型机械研究院股份公司 | Cooling and protecting mechanism of sealing ring |
| CN111424136A (en) * | 2019-01-10 | 2020-07-17 | 宝山钢铁股份有限公司 | RH flexible self-compensation sealing channel and flexible compensation method thereof |
-
2009
- 2009-02-12 CN CNU2009200676574U patent/CN201343549Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102080142A (en) * | 2010-12-17 | 2011-06-01 | 中国重型机械研究院有限公司 | Top lance automatic fixing system |
| CN102080142B (en) * | 2010-12-17 | 2013-03-27 | 中国重型机械研究院有限公司 | Top lance automatic fixing system |
| CN102979975A (en) * | 2012-11-21 | 2013-03-20 | 中冶南方工程技术有限公司 | Vacuum water-cooling rotary joint |
| CN102979975B (en) * | 2012-11-21 | 2015-04-15 | 中冶南方工程技术有限公司 | Vacuum water-cooling rotary joint |
| CN103305660A (en) * | 2013-05-29 | 2013-09-18 | 中国重型机械研究院股份公司 | Cooling and protecting mechanism of sealing ring |
| CN111424136A (en) * | 2019-01-10 | 2020-07-17 | 宝山钢铁股份有限公司 | RH flexible self-compensation sealing channel and flexible compensation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091111 Termination date: 20160212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |