CN109593908A - Flue connection structure - Google Patents
Flue connection structure Download PDFInfo
- Publication number
- CN109593908A CN109593908A CN201811599859.3A CN201811599859A CN109593908A CN 109593908 A CN109593908 A CN 109593908A CN 201811599859 A CN201811599859 A CN 201811599859A CN 109593908 A CN109593908 A CN 109593908A
- Authority
- CN
- China
- Prior art keywords
- flue
- steel plate
- tooth form
- plate frame
- form steel
- 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.)
- Pending
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
- C21C5/28—Manufacture of steel in the converter
- C21C5/38—Removal of waste gases or dust
- C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
Abstract
The invention discloses a kind of flue connection structures, a tooth form steel plate frame is fixedly installed at the connecting pin of flue, the lubrication groove profile surface of tooth form steel plate frame be and the matched toothed wheel profile surface of flue outer surface, tooth form steel plate frame is sheathed at the connecting pin of flue, and toothed wheel profile surface sealing inlay card is welded to connect on the outer surface of flue；Junction steel plate set is arranged on flue, junction steel plate set is sealedly attached on tooth form steel plate frame, is sealedly connected with connecting flange on junction steel plate set.The setting of above structure not only can satisfy the spliced seal request of each flue, but also can guarantee that sealed connection is not influenced by expansion of metal.
Description
Technical field
The present invention relates to converter evaporation cooling air flue more particularly to a kind of flue connection structures.
Background technique
Converter Residual Heat Boiler is mainly used for the recycling of coal gas, high-temperature flue gas and flue dust when the steel-making of iron and steel enterprise's Converter Oxigen Blowing.
Converter Residual Heat Boiler generallys use gasification cooling flue structure, and the production process of converter evaporation cooling air flue and converter directly connects
Lock, a part as converter steelmaking process directly participate in STEELMAKING PRODUCTION, it can be collected during converter smelting steel
High-temperature flue gas, and be cooled to, meet steel-making later period dedusting and the requirement of coal-gas recovering, while can also generate a large amount of
Steam can substantially reduce the cost of production and life for the needs for producing and living, and occupy highly importantly in steel mill
Position.
Being limited to factors, the converter evaporation cooling air flues such as pipe arrangement, podium level requirement and water cycling condition can not
It is integrally formed processing, thus needs for converter evaporation cooling air flue to be designed to several flues, then by several flues successively head and the tail
It is connected and is spliced to form a complete converter evaporation cooling air flue.Adjacent flue is connected by connecting flange two-by-two, due to each
Flue is the cylinder membrane wall structure being successively spliced to form by several heated round tubes, to guarantee between each flue and companion flange
It is tightly connected, generallys use welding round steel mode to fill the gap between each heated round tube, then again by flange welding in circle
On steel.But in use, the high temperature of converter evaporation cooling air flue frequently changes, this will lead to expansion of metal, by
It is fully welded in the gap being filled between each heated round tube, thus welding stress also Relatively centralized, is easy to appear because of metal in round steel
Expansion and stress are concentrated and lead to heated tube wall drawing crack drainage, and production is seriously affected, converter evaporation cooling air flue
Service life is mostly 1 year or so, average every half a year will blowing out soldering twice, each repair welding time needs 4 hours or so,
Considerably increase the labor intensity of the employee of maintenance flue.
Summary of the invention
The technical issues of solving needed for of the invention is: providing a kind of heated round tube and is not easy drawing crack leak and good seal performance
Flue connection structure.
To solve the above problems, the technical solution adopted by the present invention is that: the flue connection structure, in the connection of flue
A tooth form steel plate frame is fixedly installed at end, the lubrication groove profile surface of tooth form steel plate frame is and the matched toothed wheel of flue outer surface
Profile surface, tooth form steel plate frame are sheathed at the connecting pin of flue, and toothed wheel profile surface sealing inlay card is welded to connect in the foreign steamer of flue
In profile surface；Junction steel plate set is arranged on flue, junction steel plate set is sealedly attached on tooth form steel plate frame, in junction steel plate set
On be sealedly connected with connecting flange.
Further, flue connection structure above-mentioned, wherein if being additionally provided between junction steel plate set and connecting flange
Dry gusset.
Further, flue connection structure above-mentioned, wherein the tooth form steel plate frame by several segmentation tooth form steel plates according to
Composition is surrounded in secondary head and the tail connection.
The beneficial effects of the present invention are: being welded on the outer surface of flue by tooth form steel plate frame sealing card, to guarantee
The leakproofness connected between tooth form steel plate frame and flue；Connect after junction steel plate set is sheathed on flue with the sealing of tooth form steel plate frame
It connects, does not weld between junction steel plate set and flue, allows some leeway for metal heated expansion, thus the setting of above structure can both expire
The foot spliced seal request of flue adjacent two-by-two, and can guarantee that sealed connection is not influenced by expansion of metal, weld seam is not easy out
Split, heat pipe is not by drawing crack leak, connection effect is very good, considerably increases the service life of converter evaporation cooling air flue, together
When reduce maintenance flue worker labor intensity.The service life of converter evaporation cooling air flue is up to 2 to three years, and can be protected
Card is not in influence to make steel phenomenon because of leak in the time of or so a year and a half.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of flue connection structure of the present invention.
Fig. 2 is the attachment structure schematic diagram of flue Yu tooth form steel plate frame.
Fig. 3 is the configuration schematic diagram of Fig. 2.
Specific embodiment
With reference to the accompanying drawing and preferred embodiment further details of the technical solution described in the present invention.
Being limited to factors, the converter evaporation cooling air flues such as pipe arrangement, podium level requirement and water cycling condition can not
It is integrally formed processing, thus needs for converter evaporation cooling air flue to be designed to several flues, then by several flues successively head and the tail
It is connected and is spliced to form a complete converter evaporation cooling air flue.
Flue is the cylinder membrane wall structure being successively spliced to form by several heated round tubes, as shown in Figure 1, Figure 2 and Figure 3,
But flue connection structure described in the present embodiment, is fixedly installed a tooth form steel plate frame 2, tooth form at the connecting pin of flue 1
The lubrication groove profile surface of steel plate frame 2 be and the matched toothed wheel profile surface 21 of 1 outer surface of flue 11.Tooth form steel plate frame 2 is sheathed on flue 1
Connecting pin at, and toothed wheel profile surface 21 seal inlay card be welded to connect on the outer surface 11 of flue 1.It is arranged on flue 1
There is junction steel plate to cover 3, junction steel plate set 3 is sealedly attached on tooth form steel plate frame 2, the company of being sealedly connected on junction steel plate set 3
Acting flange 5, adjacent flue 1 is tightly connected by two connecting flanges 5 two-by-two, wherein can be passed through between two connecting flanges 5
Bolt 6 connects.
As shown in Figure 1, being additionally provided with several gussets 4 in the present embodiment between junction steel plate set 3 and connecting flange 5, leading to
Cross the bonding strength that each gusset 4 reinforces junction steel plate set 3 with connecting flange 5.
As shown in Figures 2 and 3, the frame of tooth form steel plate described in the present embodiment 2 is successively first by several segmentation tooth form steel plates 22
Composition is surrounded in tail connection.When flue 1 is rectangular shape, tooth form steel plate frame 2 is usually successively first by four sections of segmentation tooth form steel plates 22
Composition rectangular frame structure is surrounded in tail connection.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any other form, and
Any modification made by according to the technical essence of the invention or equivalent variations, still fall within the scope of protection of present invention.
The invention has the advantages that being welded on the outer surface 11 of flue 1 by the sealing card of tooth form steel plate frame 2, to guarantee
The leakproofness connected between tooth form steel plate frame 2 and flue 1；Junction steel plate set 3 is close with tooth form steel plate frame 2 after being sheathed on flue 1
Envelope connection does not weld between junction steel plate set 3 and flue 1, allows some leeway for metal heated expansion, thus the setting of above structure was both
It can satisfy the spliced seal request of each flue 1, and can guarantee that sealed connection is not influenced by expansion of metal, weld seam is not easy out
Split, heat pipe is not by drawing crack leak, connection effect is very good, considerably increases the service life of converter evaporation cooling air flue, together
When reduce maintenance flue worker labor intensity.The service life of converter evaporation cooling air flue is up to 2 to three years, and can guarantee
It is not in influence to make steel phenomenon because of leak in the time of or so a year and a half.
Claims (3)
1. flue connection structure, it is characterised in that: be fixedly installed a tooth form steel plate frame, tooth form steel at the connecting pin of flue
The lubrication groove profile surface of sheet frame is to be sheathed on the connecting pin of flue with the matched toothed wheel profile surface of flue outer surface, tooth form steel plate frame
Place, and toothed wheel profile surface sealing inlay card is welded to connect on the outer surface of flue；Junction steel plate set is arranged on flue, even
It connects steel plate set to be sealedly attached on tooth form steel plate frame, is sealedly connected with connecting flange on junction steel plate set.
2. flue connection structure according to claim 1, it is characterised in that: between junction steel plate set and connecting flange also
It is provided with several gussets.
3. flue connection structure according to claim 1 or 2, it is characterised in that: the tooth form steel plate frame is by several points
Section tooth form steel plate, which is sequentially connected end to end, surrounds composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811599859.3A CN109593908A (en) | 2018-12-26 | 2018-12-26 | Flue connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811599859.3A CN109593908A (en) | 2018-12-26 | 2018-12-26 | Flue connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109593908A true CN109593908A (en) | 2019-04-09 |
Family
ID=65962838
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811599859.3A Pending CN109593908A (en) | 2018-12-26 | 2018-12-26 | Flue connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109593908A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080051115A (en) * | 2008-02-21 | 2008-06-10 | 김성기 | Duct for an electric furnace |
| US20080296006A1 (en) * | 2007-05-31 | 2008-12-04 | Amerifab, Inc. | Adjustable heat exchange apparatus and method of use |
| US20100019106A1 (en) * | 2008-07-24 | 2010-01-28 | Sisley Peter D | Cable tray |
| CN209759492U (en) * | 2018-12-26 | 2019-12-10 | 苏州海陆重工股份有限公司 | Flue connection structure |
-
2018
- 2018-12-26 CN CN201811599859.3A patent/CN109593908A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080296006A1 (en) * | 2007-05-31 | 2008-12-04 | Amerifab, Inc. | Adjustable heat exchange apparatus and method of use |
| KR20080051115A (en) * | 2008-02-21 | 2008-06-10 | 김성기 | Duct for an electric furnace |
| US20100019106A1 (en) * | 2008-07-24 | 2010-01-28 | Sisley Peter D | Cable tray |
| CN209759492U (en) * | 2018-12-26 | 2019-12-10 | 苏州海陆重工股份有限公司 | Flue connection structure |
Non-Patent Citations (2)
| Title |
|---|
| 刘凯: "转炉汽化冷却烟道烟罩的改造设计", 《冶金能源》, vol. 20, no. 5, pages 30 - 31 * |
| 王月玲等: "转炉烟道汽化冷却系统及活动烟罩改造设计", 《冶金动力》, pages 48 - 50 * |
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