CN202643745U - Vacuum distillation (VD) furnace vacuum tank body seal ring protection device - Google Patents

Vacuum distillation (VD) furnace vacuum tank body seal ring protection device Download PDF

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Publication number
CN202643745U
CN202643745U CN 201220322096 CN201220322096U CN202643745U CN 202643745 U CN202643745 U CN 202643745U CN 201220322096 CN201220322096 CN 201220322096 CN 201220322096 U CN201220322096 U CN 201220322096U CN 202643745 U CN202643745 U CN 202643745U
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CN
China
Prior art keywords
vacuum tank
backplate
sealing
seal ring
ring
Prior art date
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.)
Withdrawn - After Issue
Application number
CN 201220322096
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Chinese (zh)
Inventor
李法兴
张君平
翟正龙
王学利
孙永喜
孟宪华
于学文
刘亚丽
裴建华
郑桂芸
范黎明
刘永昌
卢乃双
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Laiwu Iron and Steel Group Co Ltd
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Laiwu Iron and Steel Group Co Ltd
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Priority to CN 201220322096 priority Critical patent/CN202643745U/en
Application granted granted Critical
Publication of CN202643745U publication Critical patent/CN202643745U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model relates to a vacuum distillation (VD) furnace vacuum tank body seal ring protection device and belongs to the technical field of metallurgical equipment. The VD furnace vacuum tank body seal ring protection device comprises a guard plate (4) and a guard plate lifting system, wherein the guard plate (4) comprises a fan ring part used to cover a seal ring, and a supporting part used to place and take out the guard plate is arranged on the outer side of the fan ring part. The VD furnace vacuum tank body seal ring protection device can effectively mitigate or avoid radiation and baking functions of a high temperature lining of a central small furnace cover on the seal ring on one sealed side, improve service life of the seal ring, lower production cost, and guarantee sealing and vacuum refining effects of a vacuum tank body.

Description

A kind of VD stove vacuum tank sealing-ring protector
Technical field
The utility model belongs to technical field of metallurgical equipment, relates to a kind of VD stove vacuum tank sealing-ring protector.
Background technology
VD vacuum degassing furnace cover generally is comprised of the large bell of sealing and small center furnace cover.The Main Function of small center furnace cover is the hyperthermia radiation of shielding Vacuum Degassing Process molten steel and prevents directly spilling of slag, protects large bell, alleviates high temperature to the damage of large bell and configuration device thereof, guarantees the Vacuum Degassing Process direct motion; Simultaneously, the heat in the shielding stove reduces heat loss, plays the excessive effect of temperature drop that is incubated and avoids causing molten steel in VD stove Vacuum Degassing Process.Small center furnace cover generally is made of bell shell and the thermal insulation layer liner of anti-material two portions.In Vacuum Degassing Process, small center furnace cover because be subjected to that high temperature gas flow washes away, the radiation of high temperature furnace slag, molten steel, lining temperature is up to 1400 ℃-1700 ℃.Refining finishes, and the tank body bell lifts, 900 ℃-1100 ℃ of temperature when leaving, and after lower stove molten steel was lifted up into vacuum tank, the tank body bell drove into, and the temperature of center shielding this moment small furnace cover liner still reaches 600 ℃-900 ℃.
The upper edge of vacuum tank is an annular recesses, is provided with the rubber mass sealing-ring in the groove, and injected water, to play good sealing, cooling effect when the tank body bell falls.Because tank body bell car is arranged on a side of vacuum tank; Therefore, in the process that drives into, leaves at bell, near the vacuum tank sealing-ring of this side, the radiation of acceptor center small furnace cover high temperature lining, baking effect, easily deform, ftracture, reduce sealing-ring work-ing life, increase production cost, affect sealing and the vacuum refinement effect of vacuum tank.
Summary of the invention
The purpose of this utility model is for the deficiencies in the prior art; use sealing-ring at small center furnace cover liner hyperthermia radiation according to VD stove vacuum tank; yielding under the baking effect; cracking; cause reduce work-ing life; production cost increases; and affect the sealing of vacuum tank and the reality of vacuum refinement effect; provide a kind of VD stove vacuum tank with the sealing-ring backplate and be provided with the sealing-ring protector of this backplate; to alleviate or to avoid the small center furnace cover high temperature lining to sealing the radiation of a side seal circle; the baking effect; improve the sealing-ring life-span; reduce production costs, guarantee sealing and the vacuum refinement effect of vacuum tank.
A kind of VD stove vacuum tank sealing-ring backplate comprises a fan ring portion that is used for covering sealing-ring.
Preferably, holding part that is used for placing and taking out this backplate of fan ring portion arranged outside.
Preferably, described holding part is rectangle.
A kind of VD stove vacuum tank sealing-ring protector comprises backplate (4) and backplate jacking system, and backplate (4) comprises a fan ring portion that is used for covering sealing-ring, holding part that is used for placing and taking out this backplate of fan ring portion arranged outside.
The preferred version of backplate jacking system is, column (1) is set, and column (1) is fixedly connected with by support (2) and VD retort lid (11); The backplate jacking system comprises elevating lever (5), union lever (6), rotation axis (7), support bar (8), the upper end of elevating lever (5) is provided with groove (10), the lower end is connected with the front end of support bar (8) by rotation axis (7), and the rear end of support bar (8) is fixed on vacuum tank (12) shell; The lower end of union lever (6) is fixed on the elevating lever (5), and the upper end of union lever (6) is fixed on the bottom surface of backplate (4) holding part.
Preferably, holding part is rectangle.
Preferably, support (2) and column with being fixedly connected with of VD retort lid (11), the rear end of support bar (8) and being fixedly connected with of vacuum tank (12) shell, the lower end of union lever (6) is fixedly connected with elevating lever (5), and the upper end of union lever (6) and backplate (4) holding part bottom surface be fixedly connected with the mode that all adopts welding.
In order to allow column (1) be convenient to the location, with the easier combination of elevating lever (5), preferred, column (1) is right cylinder, and the groove of elevating lever (5) upper end is circular groove.
In order to realize the backplate fast lifting, make the backplate lifting sensitiveer, preferred, the lower end of union lever (6) is fixed on the middle and upper part of elevating lever (5).
Preferably, circular groove (10) internal diameter of elevating lever (5) upper end be column (1) external diameter 1.5-1.8 doubly.
Preferably, the fan ring portion internal diameter of backplate (4) be the upper 0.8-1.2 along groove (9) internal diameter of vacuum tank (12) doubly, the external diameter of fan ring portion be the upper 1-1.2 along groove (9) external diameter of vacuum tank (12) doubly.
The VD stove vacuum tank sealing-ring protector that the utility model provides; can effectively alleviate or avoid radiation, the baking effect of small center furnace cover high temperature lining to sealing a side seal circle; improve the sealing-ring life-span, reduce production costs, guarantee sealing and the vacuum refinement effect of vacuum tank.
Description of drawings
The structural representation of a kind of VD stove of Fig. 1 vacuum tank sealing-ring backplate;
Fig. 2 the utility model VD stove vacuum tank sealing-ring protector structural representation;
Fig. 3 the utility model VD stove vacuum tank sealing-ring protector plan structure schematic diagram.
Wherein: the 1-column, the 2-support, the 3-sealing-ring, the 4-backplate, the 5-elevating lever, the 6-union lever, the 7-rotation axis, the 8-support bar, on the 9-tank body along groove, 10-elevating lever groove, the 11-cover, the 12-vacuum tank, 41-fans ring portion, 42-holding part.
Embodiment
As shown in Figure 1, a kind of VD stove vacuum tank sealing-ring backplate 4 comprises a fan ring portion 41 that is used for covering sealing-ring 3.Holding part 42 that is used for placing and taking out this backplate of fan ring portion 41 arranged outside.Preferably, this holding part 42 is rectangle.Backplate 4 can use general steel plate to make, and also can use any heat-stable material.
A kind of VD stove vacuum tank sealing-ring protector comprises above-mentioned backplate 4 and backplate jacking system.
The preferred version of backplate jacking system is, such as Fig. 2, shown in Figure 3, column 1 is set, and column 1 is fixedly connected with by support 2 and VD retort lid 11, and concrete fixed form can be, support 2 one ends are welded on that the other end is welded on the VD retort lid 11 on the column 1; The backplate jacking system comprises elevating lever 5, union lever 6, rotation axis 7, support bar 8, and the upper end of elevating lever 5 is provided with groove 10, in order to allow column 1 be convenient to the location, with elevating lever 5 easier combinations, preferably, column 1 adopts cylindrical structure, and groove 10 preferably adopts circular groove.The lower end of elevating lever 5 is rotationally connected by the front end of rotation axis 7 with support bar 8, and the rear end of support bar 8 is fixed on vacuum tank 12 shells, for example, can be welding or any other fixed form; The lower end of union lever 6 is fixing for example can be to be welded on the elevating lever 5, preferably is welded on the middle and upper part of elevating lever 5, can realize the backplate fast lifting, makes the backplate lifting sensitiveer.The upper end of union lever 6 is fixing for example can be the bottom surface that is welded on the holding part 42 of backplate 4.
Preferably, the internal diameter of the circular groove 10 of elevating lever 5 upper ends is 1.5-1.8 times of column 1 external diameter, for example can be 1.5 times, 1.6 times, 1.7 times or 1.8 times.
The internal diameter of backplate 4 fan ring portions 41 be on the vacuum tank 12 along the 0.8-1.2 of groove 9 internal diameters doubly, for example can be 0.8 times, 0.9 times, 1 times, 1.1 times or 1.2 times.The external diameter of fan ring portion 41 be on the vacuum tank 12 along the 1-1.2 of groove 9 external diameters doubly, for example can be 1 times, 1.1 times or 1.2 times.
In normal productive process, after the vacuum treated molten steel of needs is lifted up into vacuum tank 12, drive in the process at cover (11), because backplate (4) is stamped on this side seal circle (3) top, can effectively reduce or avoid radiation, the baking effect of small center furnace cover high temperature lining.Drive at cover (11) and to put in place, in the decline process, be welded on the upper end in contact of column (1) and elevating lever (5) on the cover shell, elevating lever (5) is depressed, drive backplate (4) by union lever (6) and rise, to prevent that affecting cover (11) goes up contacting of edge with vacuum tank (12).Finish in vacuum refinement, in the process that cover (11) rises, column (1) rises with cover (11), elevating lever (5) rises thereupon, backplate (4) descends, when column (1) broke away from elevating lever (5), backplate (4) descended under action of gravity and covers at the upper top along groove (9) of vacuum tank (12).Guarantee in the process that cover is left, can effectively reduce or avoid radiation, the baking effect of small center furnace cover high temperature lining, thereby improve the sealing-ring life-span, reduce production costs, guarantee sealing and the vacuum refinement effect of vacuum tank.

Claims (8)

1. VD stove vacuum tank sealing-ring protector; it is characterized in that; comprise backplate (4) and backplate jacking system, backplate (4) comprises a fan ring portion that is used for covering sealing-ring, holding part that is used for placing and taking out this backplate of fan ring portion arranged outside.
2. VD stove vacuum tank sealing-ring protector according to claim 1 is characterized in that, holding part is rectangle.
3. VD stove vacuum tank sealing-ring protector according to claim 1 is characterized in that, column (1) is set, and column (1) is fixedly connected with VD retort lid (11) by support (2); The backplate jacking system comprises elevating lever (5), union lever (6), rotation axis (7), support bar (8), the upper end of elevating lever (5) is provided with groove (10), the lower end is connected with the front end of support bar (8) by rotation axis (7), and the rear end of support bar (8) is fixed on vacuum tank (12) shell; The lower end of union lever (6) is fixed on the elevating lever (5), and the upper end of union lever (6) is fixed on the bottom surface of backplate (4) holding part.
4. VD stove vacuum tank sealing-ring protector according to claim 3 is characterized in that, column (1) is right cylinder, and the groove of elevating lever (5) upper end is circular groove.
5. VD stove vacuum tank sealing-ring protector according to claim 4 is characterized in that, the internal diameter of the upper end circular groove (10) of elevating lever (5) is 1.5-1.8 times of column (1) external diameter.
6. VD stove vacuum tank sealing-ring protector according to claim 3; it is characterized in that; support (2) and column with being fixedly connected with of VD retort lid (11), the rear end of support bar (8) and being fixedly connected with of vacuum tank (12) shell; the lower end of union lever (6) is fixedly connected with elevating lever (5), and the upper end of union lever (6) and backplate (4) holding part bottom surface be fixedly connected with the mode that all adopts welding.
7. VD stove vacuum tank sealing-ring protector according to claim 3 is characterized in that, the lower end of union lever (6) is fixed on the middle and upper part of elevating lever (5).
8. the described VD stove of any one vacuum tank sealing-ring protector according to claim 2-7; it is characterized in that; the fan ring portion internal diameter of backplate (4) be the upper 0.8-1.2 along groove (9) internal diameter of vacuum tank (12) doubly, the external diameter of fan ring portion be the upper 1-1.2 along groove (9) external diameter of vacuum tank (12) doubly.
CN 201220322096 2012-07-04 2012-07-04 Vacuum distillation (VD) furnace vacuum tank body seal ring protection device Withdrawn - After Issue CN202643745U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220322096 CN202643745U (en) 2012-07-04 2012-07-04 Vacuum distillation (VD) furnace vacuum tank body seal ring protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220322096 CN202643745U (en) 2012-07-04 2012-07-04 Vacuum distillation (VD) furnace vacuum tank body seal ring protection device

Publications (1)

Publication Number Publication Date
CN202643745U true CN202643745U (en) 2013-01-02

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102747195A (en) * 2012-07-04 2012-10-24 莱芜钢铁集团有限公司 Protective device for sealing ring of VD furnace vacuum tank
CN104988284A (en) * 2015-06-01 2015-10-21 重庆钢铁集团设计院有限公司 Vacuum tank rubber seal ring protection method and molten steel vacuum refining method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102747195A (en) * 2012-07-04 2012-10-24 莱芜钢铁集团有限公司 Protective device for sealing ring of VD furnace vacuum tank
CN102747195B (en) * 2012-07-04 2013-12-18 莱芜钢铁集团有限公司 Protective device for sealing ring of VD furnace vacuum tank
CN104988284A (en) * 2015-06-01 2015-10-21 重庆钢铁集团设计院有限公司 Vacuum tank rubber seal ring protection method and molten steel vacuum refining method thereof

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GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20130102

Effective date of abandoning: 20131218

RGAV Abandon patent right to avoid regrant