CN2811902Y - Dry type seal device for moveable apron of rotary furnace - Google Patents
Dry type seal device for moveable apron of rotary furnace Download PDFInfo
- Publication number
- CN2811902Y CN2811902Y CN 200520103648 CN200520103648U CN2811902Y CN 2811902 Y CN2811902 Y CN 2811902Y CN 200520103648 CN200520103648 CN 200520103648 CN 200520103648 U CN200520103648 U CN 200520103648U CN 2811902 Y CN2811902 Y CN 2811902Y
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- Prior art keywords
- sealing
- header
- overskirt
- movable
- air seal
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- Expired - Lifetime
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- Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
Abstract
The utility model discloses a dry type sealing device for a movable cover apron of a rotary furnace, which is used for treating high-temperature fume of a rotary furnace. The utility model has the principle that gas is used as an air source. The sealing device comprises a watercooling ring, an air sealing header, a cover apron lifting guiding slideway, blowing holes and a gas feed flange, wherein the watercooling ring is arranged above a smoke channel movable cover apron; the lower part of the watercooling ring is connected with the air sealing header; blowing holes are arranged in the air sealing header; the gas feed flange is connected with the air sealing header via a pipeline; the cover apron lifting guiding slideway is connected with the outer part of the watercooling ring. The device is arranged above a movable cover apron, and is fixed on a flange which is arranged on the lower part of a broadwise movable smoke channel lower header. The dry type sealing device for a movable cover apron of a rotary furnace is a novel device which is used for replacing traditional sealing forms of water sealing and sand sealing of a movable cover apron of a rotary furnace at present. The utility model has the advantages of simple structure, good sealing effect, long service life and convenient operation.
Description
Technical field
The utility model relates to a kind of converter gas retracting device, especially handles the dry-type encapsulated device of converter movable overskirt of converter high-temperature flue gas.
Background technology
Domestic converter movable overskirt seal form commonly used generally has water seal sealing and sand seal sealing at present, exists following shortcoming through the activity of production practices discovery for many years overskirt water seal sealing and sand seal water-tight equipment:
1. the traditional movable overskirt water seal water-tight equipment of water seal sealing leaves dust and the fritter slag that falls in the splash process in the converter smelting later stage owing in the water sealed tank; card cover or poorly sealed disadvantage in use usually can appear; causing has a large amount of air to be blown into flue in the Converter Oxigen Blowing process; strengthened blowing oxygen quantity; not only influence the recovery quality of coal gas; also influence simultaneously the output of steam; steel mill runs into this situation and has to stop production; carry out the accumulated slag in labor cleaning's water tank, not only wasted manpower but also influence output of steel.
2. sand seal sealing is in order to alleviate the dust stratification amount of labour in the cleaning sealing device, and saves cooling water amount, and some producer adopts the seal form of sand seal, but that sand seal in use occurred was poorly sealed; Running cigarette burns with anger and blows away phenomenon such as sand.
Summary of the invention
In order to overcome poorly sealed, awkward shortcoming in the prior aries such as above-mentioned water seal sealing and sand seal sealing, it is a kind of simple in structure that the utility model provides, and sealing is reliable, long service life, the easy to operate dry-type encapsulated device of converter movable overskirt.
The technical scheme that its technical problem that solves the utility model adopts is: the dry-type encapsulated device of converter movable overskirt comprises water-cooling ring, air seal header, overskirt lifting directive slide track, injection hole, gas feed flange; The movable overskirt of flue top is provided with water-cooling ring, and the water-cooling ring bottom connects the air seal header, and air seal header inside has injection hole, and the gas feed flange links to each other with the air seal header by pipeline, and overskirt lifting directive slide track is connected the water-cooling ring outside.
As further improvement of the utility model, water-cooling ring is that horizontal compact arranged pipe is formed by connecting, in order to support the air seal header.The air seal header is made up of the semicircle header that two steel pipes system of simmering forms, sealing gas enters the air seal header by the gas feed flange, spray to movable overskirt by injection hole when bessemerizing, form twice or three road annular gas screens, to stop the excessive of flue gas.
The utlity model has simple in structure, good sealing effect, long service life, advantage such as easy to operate.As adopt steam also can realize the self-loopa utilization of steam as sealing source of the gas, provide resource for realizing that negative converter can be made steel.
Description of drawings
The utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Fig. 1 is an overall structure schematic diagram of the present utility model;
Fig. 2 is an air inlet pipeline structure chart of the present utility model.
Among the figure: 1, water-cooling ring, 2, the air seal header, 3, overskirt lifting directive slide track, 4, injection hole, 5, the gas feed flange, 6, movable overskirt, 7, traversing flue lower collecting box.
The specific embodiment
The dry-type encapsulated device of converter movable overskirt is a kind of new equipment that can substitute present movable overskirt conventional seals form sand seal sealing and water seal sealing, and principle is to adopt gas as the sealing source of the gas, and the movable overskirt of abbreviation is dry-type encapsulated.The dry-type encapsulated device design of converter movable overskirt, principle is that the use amount of the source of the gas that practices every conceivable frugality also should make the gas that sprays into that higher flow velocity and atomizing are arranged under the situation that guarantees sealing effectiveness, guarantees that sealing does not tightly make flue gas excessive.
As shown in Figure 1 and Figure 2, the dry-type encapsulated device of converter movable overskirt comprises water-cooling ring 1, air seal header 2, overskirt lifting directive slide track 3, injection hole 4, gas feed flange 5, this device is arranged on movable overskirt 6 tops, is fixed on the lower flange of traversing flue lower collecting box 7.Source of the gas can adopt nitrogen or steam to make medium movable overskirt 6 liftings are sealed, to stop the excessive of flue gas.Movable overskirt 6 falls and covers to the converter mouth top when bessemerizing, this moment, the steam steam supply valve was opened automatically, to two semicircle air seal header 2 air feed that are arranged in movable overskirt 6 outsides, air seal header 2 is formed by 120 * 60 the rectangle seamless steel pipe system of simmering steam by gas feed flange 5.Air seal header 2 inboards are the staggered injection holes of tangentially arranging 4 of two rows, these injection holes 4 along movable overskirt 6 circumferencial directions to movable overskirt 6 blowing steams, form twice annular vapor shield curtain, effectively stoped the excessive of flue gas, reached good sealing effectiveness.Adopt steam also can realize the self-loopa utilization of steam, provide resource for realizing that negative converter can be made steel as sealing source of the gas.
Claims (3)
1, the dry-type encapsulated device of a kind of converter movable overskirt is positioned at movable overskirt (6) top, and it is characterized in that: sealing device comprises water-cooling ring (1), air seal header (2), overskirt lifting directive slide track (3), injection hole (4), gas feed flange (5); The movable overskirt of flue (6) top is provided with water-cooling ring (1), water-cooling ring (1) bottom connects air seal header (2), air seal header (2) inside has injection hole (4), gas feed flange (5) links to each other with air seal header (2) by pipeline, and overskirt lifting directive slide track (3) is connected water-cooling ring (1) outside.
2, the dry-type encapsulated device of converter movable overskirt according to claim 1, it is characterized in that: water-cooling ring (1) is formed by connecting for horizontal compact arranged pipe, in order to support air seal header (2).
3, the dry-type encapsulated device of converter movable overskirt according to claim 1, it is characterized in that: air seal header (2) is made up of the semicircle header that two steel pipes system of simmering forms, sealing gas enters air seal header (2) by gas feed flange (5), spray to movable overskirt (6) by injection hole (4) when bessemerizing, form the gas screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103648 CN2811902Y (en) | 2005-08-11 | 2005-08-11 | Dry type seal device for moveable apron of rotary furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520103648 CN2811902Y (en) | 2005-08-11 | 2005-08-11 | Dry type seal device for moveable apron of rotary furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2811902Y true CN2811902Y (en) | 2006-08-30 |
Family
ID=36938292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520103648 Expired - Lifetime CN2811902Y (en) | 2005-08-11 | 2005-08-11 | Dry type seal device for moveable apron of rotary furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2811902Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331250A (en) * | 2019-07-17 | 2019-10-15 | 联峰钢铁（张家港）有限公司 | A kind of Converter Residual Heat Boiler movable gas hood |
| CN110423857A (en) * | 2019-08-22 | 2019-11-08 | 中冶赛迪技术研究中心有限公司 | Waste heat boiler fire door segment structure |
-
2005
- 2005-08-11 CN CN 200520103648 patent/CN2811902Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110331250A (en) * | 2019-07-17 | 2019-10-15 | 联峰钢铁（张家港）有限公司 | A kind of Converter Residual Heat Boiler movable gas hood |
| CN110331250B (en) * | 2019-07-17 | 2024-04-16 | 联峰钢铁（张家港）有限公司 | Movable smoke hood for converter waste heat boiler |
| CN110423857A (en) * | 2019-08-22 | 2019-11-08 | 中冶赛迪技术研究中心有限公司 | Waste heat boiler fire door segment structure |
| CN110423857B (en) * | 2019-08-22 | 2024-07-09 | 中冶赛迪技术研究中心有限公司 | Furnace mouth section structure of waste heat boiler |
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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 |
Expiration termination date: 20150811 Granted publication date: 20060830 |
|
| EXPY | Termination of patent right or utility model |