CN209759494U - Sealing structure of movable smoke hood - Google Patents
Sealing structure of movable smoke hood Download PDFInfo
- Publication number
- CN209759494U CN209759494U CN201822198635.3U CN201822198635U CN209759494U CN 209759494 U CN209759494 U CN 209759494U CN 201822198635 U CN201822198635 U CN 201822198635U CN 209759494 U CN209759494 U CN 209759494U
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- China
- Prior art keywords
- annular
- smoke hood
- red copper
- sealing
- movable
- 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- Withdrawn - After Issue
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 104
- 239000000779 smoke Substances 0.000 title claims abstract description 100
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 78
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 37
- 230000000694 effects Effects 0.000 claims abstract description 11
- 238000009413 insulation Methods 0.000 claims abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 56
- 229910052802 copper Inorganic materials 0.000 claims description 56
- 239000010949 copper Substances 0.000 claims description 56
- 238000005192 partition Methods 0.000 claims description 12
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 7
- 238000000576 coating method Methods 0.000 claims description 7
- 239000011819 refractory material Substances 0.000 claims description 5
- 229910001873 dinitrogen Inorganic materials 0.000 claims description 4
- 239000007789 gas Substances 0.000 claims description 4
- 239000011490 mineral wool Substances 0.000 claims description 3
- 238000004321 preservation Methods 0.000 claims 1
- 239000002918 waste heat Substances 0.000 abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 7
- 238000009825 accumulation Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 238000003723 Smelting Methods 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000009628 steelmaking Methods 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
Abstract
The utility model discloses a seal structure of activity petticoat pipe, its characterized in that: the upper part of the movable smoke hood is provided with a double-sealing structure consisting of a mechanical sealing baffle structure and a nitrogen sealing structure, and the double-sealing structure is provided with a heat insulation structure wrapping the periphery of the double-sealing structure. The sealing structure of the movable smoke hood has good sealing performance, low cost and wide applicability, and can be suitable for a small converter waste heat boiler and a large converter waste heat boiler; and the problems of large and complex water seal structure and serious ash accumulation during operation of the movable smoke hood in the small converter waste heat boiler are solved, and the expensive nitrogen cost of nitrogen sealing of the movable smoke hood of the large converter waste heat boiler is also solved.
Description
Technical Field
The utility model relates to a movable petticoat pipe structure on the converter exhaust-heat boiler especially relates to a seal structure of movable petticoat pipe.
Background
The converter waste heat boiler is mainly used for recovering coal gas, high-temperature flue gas and smoke dust during oxygen blowing and steel making of a converter in a steel enterprise. The converter waste heat boiler generally adopts a vaporization cooling flue structure and mainly comprises a fixed smoke hood and a movable smoke hood, wherein the movable smoke hood is mainly used for better collecting and dredging high-temperature smoke generated in the converter smelting process by matching with the fixed smoke hood, and simultaneously preventing external air from invading into the converter waste heat boiler to influence the coal gas recovery quality and preventing the smoke from escaping outwards and deteriorating the workshop environment. The movable smoke hood is required to be capable of lifting, and scrap steel, molten iron and sampling are required to be added in the smelting process; after smelting, deslagging and tapping are needed; in both cases, the movable smoke hood needs to freely rise so as to ensure that the converter can freely tilt; when smelting, the movable smoke hood can freely descend to prevent air in the external environment from entering the movable smoke hood and influencing the coal gas recovery quality.
The converter waste heat boiler is directly linked with the production process of the converter, and directly participates in steel making production as part of a converter steel making process, can collect high-temperature flue gas in the process of smelting steel by the converter and cool the flue gas down, meets the requirements of dust removal and coal gas recovery in the later period of steel making, can also generate a large amount of steam for the requirements of production and life, can greatly reduce the production and life costs, and occupies a very important position in a steel plant.
However, the working condition of the converter waste heat boiler changes periodically and sharply along with the smelting process of the converter in the operation process. When the converter blows, a large amount of high-temperature flue gas flows through the converter waste heat boiler, and the heat load of the converter waste heat boiler is increased rapidly; when blowing is stopped, the heat load of the converter waste heat boiler is sharply reduced. Such severe operating conditions necessarily have an effect on the service life of the converter waste heat boiler. At present, the service life of a converter waste heat boiler is very short, especially the first part at the entrance of a converter, namely a movable smoke hood, the operating condition is extremely bad, and the service life is generally only about 1 year. In the operation process of the converter waste heat boiler, the sealing structure of the movable smoke hood is of great importance, and the good sealing structure can effectively block high-temperature smoke generated by converter steelmaking and prevent the high-temperature smoke from overflowing from a gap between the movable smoke hood and the fixed smoke hood; the production can be operated more stably and safely. Therefore, the sealing structure of the movable smoke hood is very important, which directly influences the safe production of the converter and must be paid attention.
At present, for a small and medium-sized converter waste heat boiler adopting natural circulation, a sealing structure of a movable smoke hood usually adopts a water sealing structure, but the water sealing structure is large in size, dust is easily accumulated in the using process, the dust and water can form a similar concrete substance after being mixed for a long time, and the cleaning is very difficult. For a medium-large converter waste heat boiler adopting low-pressure forced circulation, the sealing structure of the movable smoke hood usually adopts a nitrogen sealing structure, and the movable smoke hood needs to do lifting movement, so that a reserved gap between the movable smoke hood and the fixed smoke hood is large, the amount of nitrogen required to be covered by sealing between the movable smoke hood and the fixed smoke hood is large, and the operation cost is greatly increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that needs to solve is: the sealing structure of the movable smoke hood is good in sealing performance and low in cost. The sealing structure of the movable smoke hood has wide applicability, and can be suitable for a small converter waste heat boiler and a large converter waste heat boiler; and the problems of large and complex water seal structure and serious ash accumulation during operation of the movable smoke hood in the small converter waste heat boiler are solved, and the expensive nitrogen cost of nitrogen sealing of the movable smoke hood of the large converter waste heat boiler is also solved.
In order to solve the above problem, the utility model adopts the following technical scheme: the upper part of the movable smoke hood is provided with a double sealing structure consisting of a mechanical sealing baffle structure and a nitrogen sealing structure; the mechanical sealing baffle structure is composed of two groups of annular adjusting red copper arc plate groups, and each group of annular adjusting red copper arc plate group is structurally characterized in that: the movable smoke hood is formed by sequentially overlapping at least two annular red copper arc plates from bottom to top, the axial lead of each annular red copper arc plate is superposed with the axial lead of the movable smoke hood, each annular red copper arc plate is of an annular structure formed by splicing a plurality of fan-shaped arc plates, the annular inner circle aperture of each annular red copper arc plate is different and smaller than the inner circle aperture of the upper part of the movable smoke hood, and the movable smoke hood is also provided with an adjusting structure capable of adjusting the position of each fan-shaped arc plate in two groups of annular adjusting red copper arc plates so as to change the gap between the movable smoke hood and the fixed smoke hood; the nitrogen sealing structure comprises: the cylindrical inner partition plate, the cylindrical outer partition plate, the upper sealing plate and the lower sealing plate are enclosed to form an annular cavity, and the annular cavity is fixedly arranged between the two groups of annular adjusting red copper arc plate groups; at least one nitrogen gas inlet pipe is arranged at the upper part of the movable smoke hood, the gas outlet of each nitrogen gas inlet pipe is respectively communicated with the annular cavity, a plurality of small holes are arranged on the cylindrical inner partition plate, and the gas outlet of each small hole faces to the axial lead of the movable smoke hood; and a heat insulation structure for wrapping the periphery of the double-sealing structure is arranged on the double-sealing structure.
Further, the sealing structure of the movable smoke hood is characterized in that: each annular red copper arc plate in each group of annular adjusting red copper arc plate groups consists of the same number of fan-shaped arc plates, and the fan-shaped arc plates in each annular red copper arc plate 81 are correspondingly overlapped up and down one by one; each fan-shaped arc plate is provided with at least one long circular adjusting hole, the length of each long circular adjusting hole is larger than the diameter of each bolt, and each bolt sequentially penetrates through the corresponding long circular adjusting holes on the fan-shaped arc plates which are overlapped from bottom to top and then fixes the fan-shaped arc plates in the two groups of annular adjusting red copper arc plate groups on the upper part of the movable smoke hood.
Further, in the sealing structure of the movable smoke hood, one side of the upper sealing plate and one side of the lower sealing plate both extend outwards, and after each bolt passes through the corresponding oblong adjusting hole on each sector arc plate stacked from bottom to top and the corresponding through hole on the upper sealing plate and the lower sealing plate extending outwards, each sector arc plate in the two annular adjusting red copper arc plate groups is fixed on the upper portion of the movable smoke hood, and the annular cavity is fixed between the two annular adjusting red copper arc plate groups.
Further, in the sealing structure of the movable smoke hood, two long circular adjusting holes are formed in each fan-shaped arc plate of each annular red copper arc plate.
Further, the sealing structure of the movable smoke hood, wherein the heat insulation structure is: and a peripheral enclosing plate for wrapping the periphery of the double-sealing structure is arranged at the periphery of the double-sealing structure, and mineral wool resistant to 1300 ℃ high temperature is filled in a gap between the peripheral enclosing plate and the double-sealing structure.
Further, in the sealing structure of the movable smoke hood, a refractory material coating is further wrapped on the peripheral enclosing plate.
Further, in the sealing structure of the movable smoke hood, the refractory material coating is fixedly wrapped on the peripheral enclosing plate through the Y-shaped hook nails.
Further, in the sealing structure of the movable smoke hood, two nitrogen inlet pipes are arranged at the upper part of the movable smoke hood.
The utility model has the advantages that: the sealing structure of the movable smoke hood has good sealing performance, low cost and wide applicability, and can be suitable for a small-sized converter waste heat boiler and a large-sized converter waste heat boiler; the structure of the double sealing structure formed by the mechanical sealing baffle plate structure and the nitrogen sealing structure is good in sealing performance, the gap between the movable smoke hood and the fixed smoke hood is further reduced under the condition that the movable smoke hood moves smoothly relative to the fixed smoke hood, and therefore the nitrogen amount required by nitrogen sealing is further reduced, the problems that the water sealing structure of the movable smoke hood in the small converter waste heat boiler is large and complex and the ash accumulation is serious during operation are solved, and the expensive nitrogen cost of the nitrogen sealing of the movable smoke hood of the large converter waste heat boiler is also solved.
Drawings
Fig. 1 is an application structure schematic diagram of the sealing structure of the movable smoke hood of the utility model used for the small-sized converter waste heat boiler.
Fig. 2 is a schematic view of a sealing structure of the movable hood of fig. 1.
Fig. 3 is an application structure schematic diagram of the sealing structure of the movable smoke hood of the utility model used for the large-scale converter waste heat boiler.
Figure 4 is a schematic view of a sealing arrangement of the movable smoke cage of figure 3.
FIG. 5 is a schematic view of the top view of FIG. 4 showing a copper arc plate in any shape.
Fig. 6 is a schematic structural view of any one of the sector arc plates in fig. 5.
Fig. 7 is a schematic structural view of a cylindrical inner partition plate in the top view of fig. 4.
Detailed Description
The technical solution of the present invention will be described in further detail with reference to the accompanying drawings and preferred embodiments.
Example one
The present embodiment is described by taking a sealing structure of a movable hood on a small and medium-sized converter exhaust-heat boiler using natural circulation as an example. The fixed petticoat pipe 2 inserts the 1 upper segment of activity petticoat pipe from activity petticoat pipe 1 upper portion, because activity petticoat pipe 1 needs the relative fixed petticoat pipe 2 up-and-down motion, therefore inevitably can have the clearance between activity petticoat pipe 1 and the fixed petticoat pipe 2.
As shown in fig. 1 and 2, the sealing structure 3 of the movable hood according to the present embodiment is a double sealing structure formed by a mechanical sealing baffle structure and a nitrogen sealing structure. The mechanical sealing baffle structure is composed of two groups of annular adjusting red copper arc plate groups 8, and each group of annular adjusting red copper arc plate groups 8 has the following structure: the exhaust hood is formed by sequentially overlapping at least two annular red copper arc plates 81 from bottom to top, and the axial lead of each annular red copper arc plate 81 is superposed with the axial lead of the movable exhaust hood 1. As shown in fig. 5 and 6, each annular red copper arc plate 81 is an annular structure formed by splicing a plurality of fan-shaped arc plates 82, the annular inner circle apertures phi of the annular red copper arc plates 81 are different, and the annular inner circle apertures phi of the annular red copper arc plates 81 are smaller than the inner circle aperture of the upper part of the movable smoke hood. The movable smoke hood 1 is also provided with an adjusting structure which can adjust the positions of the fan-shaped arc plates 82 in the two groups of annular adjusting red copper arc plate groups 8 so as to change the gap between the movable smoke hood 1 and the fixed smoke hood 2.
As shown in fig. 2, the adjusting structure is: each annular red copper arc plate 81 in each group of annular adjusting red copper arc plate groups 8 is composed of the same number of fan-shaped arc plates 82, and the fan-shaped arc plates 82 in each annular red copper arc plate 81 are in one-to-one correspondence from top to bottom. Each fan-shaped arc plate 82 is provided with at least one long circular adjusting hole 83, the length of each long circular adjusting hole 83 is larger than the diameter of each bolt 9, and each bolt 9 sequentially penetrates through the corresponding long circular adjusting holes 83 on the corresponding fan-shaped arc plates 82 which are overlapped from bottom to top to fix each fan-shaped arc plate 82 in the two groups of annular adjusting red copper arc plate groups 8 on the upper portion of the movable smoke hood 1. After the bolt 9 is loosened, the fan-shaped arc plates 82 can be pushed and pulled to move relative to the bolt through the long circle adjusting hole 83. In order to make each arc segment 82 move relative to the corresponding bolt 9 more stably and prevent each arc segment 82 from shaking relative to the corresponding bolt 9, two oblong adjusting holes 83 are usually provided on each arc segment 82 of each annular red copper arc plate 81.
As shown in fig. 2 and 7, the nitrogen sealing structure includes: the cylindrical inner partition plate 71, the cylindrical outer partition plate 72, the upper sealing plate 73 and the lower sealing plate 74 enclose to form an annular cavity 7, and the annular cavity 7 is fixedly arranged between the two groups of annular adjusting red copper arc plate groups 8. At least one nitrogen inlet pipe 4 is arranged at the upper part of the movable smoke hood 1, in the embodiment, two nitrogen inlet pipes 4 are arranged at the upper part of the movable smoke hood 1 as an example, the air outlets of the nitrogen inlet pipes 4 are respectively communicated with the annular cavity 7, a plurality of small holes 70 are arranged on the cylindrical inner partition plate 71, and the air outlets of the small holes 70 face the axial lead of the movable smoke hood 1.
In order to stably arrange the annular cavity 7 between the two annular adjusting red copper arc plate groups 8 and simplify the connection structure, one side of the upper sealing plate 73 and one side of the lower sealing plate 74 of the annular cavity 7 both extend outwards, so that each bolt 9 can penetrate through the corresponding oblong adjusting hole 83 on each sector arc plate 82 stacked from bottom to top and the corresponding through hole on the upper sealing plate 73 extending outwards, and each sector arc plate 81 in each two annular adjusting red copper arc plate groups 8 is fixed on the upper part of the movable smoke hood 1 after the corresponding through hole on the lower sealing plate 74 extending outwards, and the annular cavity 7 is fixed between the two annular adjusting red copper arc plate groups 8.
When the mechanical seal baffle structure is not adjusted, each annular red copper arc plate 81 in each group of annular adjusting red copper arc plate groups 8 is in a dispersion form, namely, a plurality of fan-shaped arc plates forming any annular red copper arc plate 81 are all dispersed outwards. During adjustment, the corresponding annular red copper arc plate 81 in each group of annular adjusting red copper arc plate groups 8 is selected according to the gap between the movable smoke hood 1 and the fixed smoke hood 2, then the bolt 9 is loosened, so that the axial lead direction of the movable smoke hood 1 is gradually drawn close to the axial lead direction of each fan-shaped arc plate 82 in two corresponding annular red copper arc plates 81 relative to the axial lead direction of the movable smoke hood 1, at the moment, the inner circle aperture phi of the two corresponding annular red copper arc plates 81 is gradually reduced by the maximum diameter value in a dispersion state, and the purpose of reducing the gap between the movable smoke hood 1 and the fixed smoke hood 2 is achieved. The annular nitrogen seal cavity 75 which needs nitrogen seal is formed among the two groups of annular adjusting red copper arc plate groups 8, the edge of the upper seal plate 73 extending out of the annular cavity 7, the edge of the lower seal plate 74, the cylindrical inner partition plate 71 and the outer contour of the fixed smoke hood 2, and the gap between the annular nitrogen seal cavity 75 and the fixed smoke hood 2 is very small, so that the nitrogen seal requirement can be met only by introducing a small amount of nitrogen into the annular cavity 7 and then blowing out the nitrogen seal layer filled in the annular nitrogen seal cavity 75 through the small holes 70 on the cylindrical inner partition plate 71.
As shown in fig. 2, in this embodiment, a heat insulation structure for wrapping the periphery of the double-seal structure 3 is disposed on the double-seal structure 3, and the heat insulation structure is: a peripheral enclosing plate 5 which wraps the periphery of the double-sealing structure is arranged on the periphery of the double-sealing structure 3, and mineral wool 6 which can resist the high temperature of 1300 ℃ is filled in a gap between the peripheral enclosing plate 5 and the double-sealing structure 3.
Example two
In this embodiment, a sealing structure of a movable hood for a medium-large converter exhaust-heat boiler using a pressure system cycle is described as an example. The fixed petticoat pipe 2 inserts the 1 upper segment of activity petticoat pipe from activity petticoat pipe 1 upper portion, because activity petticoat pipe 1 needs the relative fixed petticoat pipe 2 up-and-down motion, therefore inevitably can have the clearance between activity petticoat pipe 1 and the fixed petticoat pipe 2.
As shown in fig. 3 and 4, the sealing structure 3 of the movable hood according to the present embodiment is a double sealing structure composed of a mechanical sealing baffle structure and a nitrogen sealing structure. The mechanical seal baffle structure and the nitrogen seal structure are completely the same as those in the first embodiment, and are not described herein again. The difference between the present embodiment and the first embodiment is: as shown in fig. 4, in this embodiment, in addition to the first embodiment, the peripheral panel 5 is further wrapped with the durable material coating 10, and in order to more firmly fix the durable material coating 10, the following arrangements are made: the refractory material coating 10 is fixedly wrapped and arranged on the periphery of the peripheral coaming 5 through a Y-shaped hook nail 11.
The rest of the structure and the using mode are the same as those of the first embodiment, and are not described again.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any modifications or equivalent changes made in accordance with the technical spirit of the present invention are also within the scope of the present invention.
The utility model has the advantages that: the sealing structure of the movable smoke hood 1 has good sealing performance, low cost and wide applicability, and can be suitable for a small-sized converter waste heat boiler and a large-sized converter waste heat boiler; the double-seal structure formed by the mechanical seal baffle plate structure and the nitrogen seal structure has good sealing performance, and the gap between the movable smoke hood 1 and the fixed smoke hood 2 is further reduced under the condition of ensuring the smooth movement of the movable smoke hood 1 relative to the fixed smoke hood 2, so that the nitrogen amount required by nitrogen seal is further reduced, the problems of huge and complicated water seal structure and serious ash accumulation during operation of the movable smoke hood in the small converter waste heat boiler are solved, and the expensive nitrogen cost of the nitrogen seal of the movable smoke hood of the large converter waste heat boiler is also solved.
Claims (8)
1. Seal structure of activity petticoat pipe, its characterized in that: the upper part of the movable smoke hood is provided with a double sealing structure consisting of a mechanical sealing baffle structure and a nitrogen sealing structure; the mechanical sealing baffle structure is composed of two groups of annular adjusting red copper arc plate groups, and each group of annular adjusting red copper arc plate group is structurally characterized in that: the movable smoke hood is formed by sequentially overlapping at least two annular red copper arc plates from bottom to top, the axial lead of each annular red copper arc plate is superposed with the axial lead of the movable smoke hood, each annular red copper arc plate is of an annular structure formed by splicing a plurality of fan-shaped arc plates, the annular inner circle aperture of each annular red copper arc plate is different and smaller than the inner circle aperture of the upper part of the movable smoke hood, and the movable smoke hood is also provided with an adjusting structure capable of adjusting the position of each fan-shaped arc plate in two groups of annular adjusting red copper arc plates so as to change the gap between the movable smoke hood and the fixed smoke hood; the nitrogen sealing structure comprises: the cylindrical inner partition plate, the cylindrical outer partition plate, the upper sealing plate and the lower sealing plate are enclosed to form an annular cavity, and the annular cavity is fixedly arranged between the two groups of annular adjusting red copper arc plate groups; at least one nitrogen gas inlet pipe is arranged at the upper part of the movable smoke hood, the gas outlet of each nitrogen gas inlet pipe is respectively communicated with the annular cavity, a plurality of small holes are arranged on the cylindrical inner partition plate, and the gas outlet of each small hole faces to the axial lead of the movable smoke hood; and a heat insulation structure for wrapping the periphery of the double-sealing structure is arranged on the double-sealing structure.
2. A sealing structure of a movable hood according to claim 1, characterized in that: the adjusting structure is as follows: each annular red copper arc plate in each group of annular adjusting red copper arc plate groups consists of the same number of fan-shaped arc plates, and the fan-shaped arc plates in each annular red copper arc plate 81 are correspondingly overlapped up and down one by one; each fan-shaped arc plate is provided with at least one long circular adjusting hole, the length of each long circular adjusting hole is larger than the diameter of each bolt, and each bolt sequentially penetrates through the corresponding long circular adjusting holes on the fan-shaped arc plates which are overlapped from bottom to top and then fixes the fan-shaped arc plates in the two groups of annular adjusting red copper arc plate groups on the upper part of the movable smoke hood.
3. A sealing structure for a movable hood according to claim 2, characterized in that: one side of the upper sealing plate and one side of the lower sealing plate extend outwards, and each bolt penetrates through the corresponding long circular adjusting hole in each fan-shaped arc plate stacked from bottom to top and the corresponding through hole in the upper sealing plate and the lower sealing plate extending outwards to fix each fan-shaped arc plate in the two groups of annular adjusting red copper arc plate groups on the upper portion of the movable smoke hood and fix the annular cavity between the two groups of annular adjusting red copper arc plate groups.
4. A sealing structure of a movable hood according to claim 2 or 3, characterized in that: two long circular adjusting holes are arranged on each fan-shaped arc plate of each annular red copper arc plate.
5. A sealing structure of a movable hood according to claim 1, characterized in that: the heat preservation structure is as follows: and a peripheral enclosing plate for wrapping the periphery of the double-sealing structure is arranged at the periphery of the double-sealing structure, and mineral wool resistant to 1300 ℃ high temperature is filled in a gap between the peripheral enclosing plate and the double-sealing structure.
6. A seal structure for a movable hood according to claim 5, characterized in that: and a refractory material coating is also wrapped on the peripheral coaming.
7. A seal structure for a movable hood according to claim 5, characterized in that: the refractory material coating is fixedly wrapped on the peripheral coaming through the Y-shaped hook nails.
8. A sealing structure of a movable hood according to claim 1, 2 or 5, characterized in that: two nitrogen inlet pipes are arranged at the upper part of the movable smoke hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822198635.3U CN209759494U (en) | 2018-12-26 | 2018-12-26 | Sealing structure of movable smoke hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822198635.3U CN209759494U (en) | 2018-12-26 | 2018-12-26 | Sealing structure of movable smoke hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209759494U true CN209759494U (en) | 2019-12-10 |
Family
ID=68747400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822198635.3U Withdrawn - After Issue CN209759494U (en) | 2018-12-26 | 2018-12-26 | Sealing structure of movable smoke hood |
Country Status (1)
| Country | Link |
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| CN (1) | CN209759494U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109609723A (en) * | 2018-12-26 | 2019-04-12 | 苏州海陆重工股份有限公司 | The sealing structure of movable gas hood |
-
2018
- 2018-12-26 CN CN201822198635.3U patent/CN209759494U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109609723A (en) * | 2018-12-26 | 2019-04-12 | 苏州海陆重工股份有限公司 | The sealing structure of movable gas hood |
| CN109609723B (en) * | 2018-12-26 | 2024-03-19 | 苏州海陆重工股份有限公司 | Sealing structure of movable smoke hood |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191210 Effective date of abandoning: 20240319 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20191210 Effective date of abandoning: 20240319 |