CN107906973B - Sintering flue sealing structure - Google Patents
Sintering flue sealing structure Download PDFInfo
- Publication number
- CN107906973B CN107906973B CN201711353191.XA CN201711353191A CN107906973B CN 107906973 B CN107906973 B CN 107906973B CN 201711353191 A CN201711353191 A CN 201711353191A CN 107906973 B CN107906973 B CN 107906973B
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- China
- Prior art keywords
- flue
- fixed
- movable
- sealing
- steel plate
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
- F27D17/002—Details of the installations, e.g. fume conduits or seals
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gasket Seals (AREA)
- Joints Allowing Movement (AREA)
Abstract
The invention discloses a sealing structure of a sintering flue, which comprises a fixed flue (2) and a movable flue (1), wherein the fixed flue (2) is connected with the movable flue (1) through a flexible sealing connecting piece (5) made of a thin steel plate. By adopting the technical scheme, the foundation and the embedded plates are respectively manufactured on the fixed flue and the movable flue and are connected by the Z-shaped flexible steel plates in a seamless welding way, so that the deformation of the flue is well adapted, the expansion deformation problem of the flue is effectively solved, and the flue is durable; meanwhile, the flue expansion joint is subjected to more effective sealing treatment, so that the sealing effect is good, the problem of exhaust gas emission is solved, and the requirement of environmental protection is met.
Description
Technical Field
The invention belongs to the technical field of metallurgical industrial production equipment, and relates to sintering process equipment in steel production. More particularly, the present invention relates to a sealing structure for a sintering flue.
Background
The sintering main flue is a main channel for discharging sintering flue gas. Because the flue gas temperature is higher, and the flue gas is the malleation and discharges, flue gas passageway is sealed poorly and can cause the flue gas to overflow, takes place the environmental protection accident.
In general, the flue part consists of a fixed flue and a movable flue, and the two are generally sealed by adopting a sliding or standard expansion joint, but the sealing effect is poorer and worse under the influence of expansion and shrinkage and abrasion.
Disclosure of Invention
The invention provides a sealing structure of a sintering flue, which aims to improve the sealing effect of the sintering flue through flexible connection.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the sealing structure of the sintering flue comprises a fixed flue and a movable flue; the fixed flue and the movable flue are connected through a flexible sealing connecting piece made of thin steel plates.
The structure of the flexible sealing connecting piece is in a circular ring shape; on the longitudinal section through the axis, the side surface of the flexible sealing connecting piece forms a Z-shaped turning, so that the axial diameters of the flexible sealing connecting piece are unequal, one end with a larger diameter is connected with the fixed flue, and the other end with a smaller diameter is connected with the movable flue.
A sealing connection basic ring is arranged on the outer circle of the end part of the fixed flue connected with the movable flue and is connected with the movable flue into a whole; the method comprises the steps that a fixed end steel plate in a circular shape is embedded on a movable flue facing a sealing connection basic circular ring, and the plane of the fixed end steel plate is perpendicular to the axis of the fixed flue; a circular movable flue connecting plate is arranged on the outer circle of the end part of the movable flue, which is connected with the fixed flue, and the plane of the circular movable flue connecting plate is perpendicular to the axis of the movable flue; one end of the Z shape is connected with the fixed end steel plate, and the other end is connected with the movable flue connecting plate.
The Z-shaped structure is connected with the fixed end steel plate and the movable flue connecting plate by adopting welding.
The sealing connection foundation ring is formed by implanting steel bars and pouring concrete on the fixed flue.
By adopting the technical scheme, the foundation and the embedded plates are respectively manufactured on the fixed flue and the movable flue and are connected by the Z-shaped flexible steel plates in a seamless welding way, so that the deformation of the flue is well adapted, the expansion deformation problem of the flue is effectively solved, and the flue is durable; meanwhile, the flue expansion joint is subjected to more effective sealing treatment, so that the sealing effect is good, the problem of exhaust gas emission is solved, and the requirement of environmental protection is met.
Drawings
The contents of the drawings and the marks in the drawings are briefly described as follows:
FIG. 1 is a schematic diagram of the structure of the present invention;
1. the movable flue, 2, the fixed flue, 3, the sealing connection basic ring, 4, the fixed end steel plate, 5, the flexible sealing connection piece (or called Z-shaped steel plate), 6, the movable flue connection plate,
Detailed Description
The following detailed description of the embodiments of the invention, given by way of example only, is presented in the accompanying drawings to aid in a more complete, accurate, and thorough understanding of the inventive concepts and aspects of the invention by those skilled in the art.
The structure of the invention as expressed in fig. 1 is a sintered flue sealing structure, is a reliable flexible connection capable of improving the flue sealing effect, and comprises a fixed flue 2 and a movable flue 1; the movable flue 1 and the fixed flue 2 are used as a matrix, a circle of foundation is poured by planting ribs on the fixed flue 2, steel plates are embedded on the foundation, the movable flue 1 is welded with the steel plates, and the two steel plates are connected by the Z-shaped steel plates.
In order to solve the problems existing in the prior art and overcome the defects thereof and realize the aim of improving the sealing effect of a sintering flue, the invention adopts the following specific modes:
and a Z-shaped flexible steel plate is arranged between the fixed flue 2 and the movable flue 1 and is welded with the flue steel plate respectively. As shown in fig. 1, in the sintering flue sealing structure of the present invention, the fixed flue 2 and the movable flue 1 are connected by a flexible sealing connector 5 made of a thin steel plate.
The sealing method is to adopt flexible connection to realize seamless butt joint of the front and the back of the flue. The flexible sealing connection 5 between the two flues is required to be ductile enough to allow for a sufficient deformation margin.
The structure of the flexible sealing connecting piece 5 is in a circular ring shape; on the longitudinal section through the axis, the side surface of the flexible sealing connecting piece 5 forms a Z-shaped turning, so that the axial diameters of the flexible sealing connecting piece 5 are unequal, one end with larger diameter is connected with the fixed flue 2, and one end with smaller diameter is connected with the movable flue 1.
By adopting the structure, the fixed flue 2 and the movable flue 1 respectively make a foundation and an embedded plate and are connected by the Z-shaped flexible steel plate in a seamless welding way. The sealing structure can effectively solve the problem of expansion deformation of the flue, and simultaneously effectively seals the expansion joint of the flue, so that the sealing structure has a good effect. The flue expansion joint is effectively sealed, the sealing effect is good, the exhaust emission is effectively solved, and the environmental protection requirement is realized; can effectively solve the problem of expansion deformation of the flue, and is durable.
A sealing connection basic ring 3 is arranged on the outer circle of the end part of the fixed flue 2 connected with the movable flue 1 and is connected with the movable flue 1 into a whole; on the movable flue 1 facing the sealing connection basic ring 3, embedding a ring-shaped fixed end steel plate 4, wherein the plane of the fixed end steel plate is perpendicular to the axis of the fixed flue 2; a circular movable flue connecting plate 6 is arranged on the outer circle of the end part of the movable flue 1 connected with the fixed flue 2, and the plane of the circular movable flue connecting plate is perpendicular to the axis of the movable flue 1; one end of the Z shape is connected with the fixed end steel plate 4, and the other end is connected with the movable flue connecting plate 6.
The sealing connection basic ring 3 is in seamless connection with the fixed flue 2 and is fixed on the fixed flue 2 body to form a whole, and meanwhile, a steel plate, namely a fixed end steel plate 4, is embedded. The sealing connection basic ring 3 is formed by implanting steel bars and pouring concrete on the original fixed flue 2 for one circle, and is in sealing butt joint along the circumferential direction. The pre-buried fixed end steel plate 4 and the fixed flue 2 body are to be poured seamlessly.
The two ends of the Z-shaped flexible sealing connecting piece 5 are respectively connected to two opposite planes of the fixed end steel plate 4 pre-buried on the fixed flue 2 and the movable flue connecting plate 6 on the movable flue 1, when deformation occurs, the flexible sealing connecting piece 5 is deformed to a certain extent, and the deformation has little influence on the flue.
The Z-shaped structure is connected with the fixed end steel plate 4 and the movable flue connecting plate 6 by welding. And the flue gas sealing effect is achieved by seamless welding of the Z-shaped plates and the flues at the two ends. After welding, natural air cooling is performed, and the movable flue connecting plate 6 and the movable flue 1 are required to be continuously welded and surround for one circle. The weld joint is required to be fully welded, and no gap exists after all the joints are completed.
While the invention has been described above with reference to the accompanying drawings, it will be apparent that the invention is not limited to the above embodiments, but is capable of being modified or applied directly to other applications without modification, as long as various insubstantial modifications of the method concept and technical solution of the invention are adopted, all within the scope of the invention.
Claims (2)
1. A sealing structure of a sintering flue comprises a fixed flue (2) and a movable flue (1); the fixed flue (2) is connected with the movable flue (1) through a flexible sealing connecting piece (5) made of a thin steel plate;
the method is characterized in that:
the structure of the flexible sealing connecting piece (5) is in a circular ring shape; on the longitudinal section through the axis, the side surface of the flexible sealing connecting piece (5) forms a Z-shaped turning, so that the axial diameters of the flexible sealing connecting piece (5) are unequal, one end with larger diameter is connected with the fixed flue (2), and the other end with smaller diameter is connected with the movable flue (1);
a sealing connection basic ring (3) is arranged on the outer circle of the end part of the fixed flue (2) connected with the movable flue (1) and is connected with the movable flue (1) into a whole; on the sealing connection base ring (3) facing the movable flue (1), embedding a ring-shaped fixed end steel plate (4), wherein the plane of the fixed end steel plate is perpendicular to the axis of the fixed flue (2); a circular movable flue connecting plate (6) is arranged on the outer circle of the end part of the movable flue (1) connected with the fixed flue (2), and the plane of the circular movable flue connecting plate is perpendicular to the axis of the movable flue (1); one end of the Z shape is connected with the fixed end steel plate (4), and the other end is connected with the movable flue connecting plate (6);
the Z-shaped structure is connected with the fixed end steel plate (4) and the movable flue connecting plate (6) by welding.
2. The sintering flue seal structure of claim 1, wherein: the sealing connection foundation ring (3) is formed by implanting steel bars on the fixed flue (2) and casting concrete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711353191.XA CN107906973B (en) | 2017-12-15 | 2017-12-15 | Sintering flue sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711353191.XA CN107906973B (en) | 2017-12-15 | 2017-12-15 | Sintering flue sealing structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107906973A CN107906973A (en) | 2018-04-13 |
| CN107906973B true CN107906973B (en) | 2023-10-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711353191.XA Active CN107906973B (en) | 2017-12-15 | 2017-12-15 | Sintering flue sealing structure |
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| Country | Link |
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| CN (1) | CN107906973B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110715313B (en) * | 2019-10-24 | 2021-10-01 | 哈尔滨锅炉厂有限责任公司 | Smoke air duct sealing structure and sealing method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1166131A (en) * | 1967-04-15 | 1969-10-08 | Parkinson Cowan Appliances Ltd | Pipe Seal |
| GB1203697A (en) * | 1967-05-24 | 1970-09-03 | Lorraine Laminage | A pivoting flue for the evacuation of fumes |
| CN101451704A (en) * | 2007-11-28 | 2009-06-10 | 中国恩菲工程技术有限公司 | Inlet sealing and connecting device for exhaust-heating boiler |
| CN101566434A (en) * | 2009-06-10 | 2009-10-28 | 北京明诚技术开发有限公司 | Converter movable hood flexible ring mechanical sealing device and sealing method |
| CN201488566U (en) * | 2009-06-10 | 2010-05-26 | 北京明诚技术开发有限公司 | Flexible ring mechanical seal device of converter movable hood |
| CN207688667U (en) * | 2017-12-15 | 2018-08-03 | 芜湖新兴铸管有限责任公司 | A kind of sintering flue sealing structure |
-
2017
- 2017-12-15 CN CN201711353191.XA patent/CN107906973B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1166131A (en) * | 1967-04-15 | 1969-10-08 | Parkinson Cowan Appliances Ltd | Pipe Seal |
| GB1203697A (en) * | 1967-05-24 | 1970-09-03 | Lorraine Laminage | A pivoting flue for the evacuation of fumes |
| CN101451704A (en) * | 2007-11-28 | 2009-06-10 | 中国恩菲工程技术有限公司 | Inlet sealing and connecting device for exhaust-heating boiler |
| CN101566434A (en) * | 2009-06-10 | 2009-10-28 | 北京明诚技术开发有限公司 | Converter movable hood flexible ring mechanical sealing device and sealing method |
| CN201488566U (en) * | 2009-06-10 | 2010-05-26 | 北京明诚技术开发有限公司 | Flexible ring mechanical seal device of converter movable hood |
| CN207688667U (en) * | 2017-12-15 | 2018-08-03 | 芜湖新兴铸管有限责任公司 | A kind of sintering flue sealing structure |
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| Publication number | Publication date |
|---|---|
| CN107906973A (en) | 2018-04-13 |
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