CN102559972A - Blast furnace air port sleeve - Google Patents
Blast furnace air port sleeve Download PDFInfo
- Publication number
- CN102559972A CN102559972A CN2010105759585A CN201010575958A CN102559972A CN 102559972 A CN102559972 A CN 102559972A CN 2010105759585 A CN2010105759585 A CN 2010105759585A CN 201010575958 A CN201010575958 A CN 201010575958A CN 102559972 A CN102559972 A CN 102559972A
- Authority
- CN
- China
- Prior art keywords
- air port
- sleeve
- tuyere
- cover
- blast furnace
- 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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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000919 ceramic Substances 0.000 claims abstract description 8
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 8
- 239000010439 graphite Substances 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000003723 Smelting Methods 0.000 abstract description 8
- 239000011819 refractory material Substances 0.000 abstract description 4
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000010276 construction Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 239000003034 coal gas Substances 0.000 description 4
- 239000011449 brick Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003245 working effect Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 208000011580 syndromic disease Diseases 0.000 description 1
Images
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- Blast Furnaces (AREA)
Abstract
The invention relates to a blast furnace air port sleeve comprising an air port large sleeve, an air port middle sleeve, and an air port small sleeve. The air port large sleeve, the air port middle sleeve, and the air port small sleeve are connected and fixed through a flange. A compact and firm ceramic layer is composed on the inner wall of the air port small sleeve, and a graphite layer is composed on the outer wall of the air port small sleeve. The bottoms of the air port middle sleeve and the air port small sleeve are arranged with the flange, which is fixed on the tops of the air port large sleeve and the air port middle sleeve through connection parts. According to the invention, the air port sleeve is assembled by using flange-type connection. The air port sleeve is advantaged in simple assembly and easy disassembly. With the air port sleeve, labor intensity of on-site construction workers is greatly reduced, and an influence on refractory materials constructed near the air port is small. Also, a compact and firm ceramic layer is composed on the inner wall of the air port small sleeve, and a graphite layer is composed on the outer wall of the air port small sleeve, such that the air port small sleeve is provided with good wear resistance and corrosion resistance. Therefore, the service life of the blast furnace smelting air port small sleeve is effectively improved.
Description
Technical field
The present invention relates to a kind of tuyere cover of blast furnace.
Background technology
Blast furnace is an airtight HTHP smelting vessel, and air-supply arrangement blasts hot blast through the air port cover that is installed on the furnace shell in stove, and the HTHP coal gas stream reducing iron ore that the coke burning generates is produced heating molten steel.The air port cover generally comprises big cover, middle cover and little cover, is the necessary equipment of blast-furnace smelting.The air port cover forms blast furnace wind-engaging passage, plays the effect of near its firebrick lining of cooling, the HTHP coal gas in the Sealing furnace.General employing cast steel or cast copper monoblock casting form, and are cast into water stream channel in it, the water flowing cooling.Be sealed high pressure coal gas; The hard connection adopted in connection between traditional tuyere big sleeve, middle cover, the little cover; Be exactly between the cover in tuyere small sleeve and the air port to be processed into cone through the front end that overlaps in the air port with the rear end of tuyere small sleeve, equipment such as employing screw block holds out against during installation.
Adopt this kind cone hard connecting mode; Hold out against the back equipment between strength of joint big; Need adopt special dismounting equipment during replacing, dismounting is difficulty very, even often adopts destructive the dismounting; Machinery dismounting simultaneously can produce the loose damage effect to the refractory materials of building by laying bricks or stones around the equipment of air port, strengthens the possibility of gas leak.
Simultaneously, along with the strengthening smelting operation that blast furnace significantly improves wind-warm syndrome and air quantity, the Working environment of the middle or small cover in air port is more and more abominable, and particularly tuyere small sleeve directly contacts pyritous slag flowing molten iron and coal gas stream, and its life-span is shorter.
Summary of the invention
In order to overcome above defective, the technical problem that the present invention will solve is: propose a kind ofly to be easy to dismantle, the tuyere cover of blast furnace of corrosion-resistant, wear-resistant, long service life.
The technical scheme that the present invention adopted is: a kind of tuyere cover of blast furnace; Comprise cover and tuyere small sleeve in tuyere big sleeve, the air port; Connect fixing in said tuyere big sleeve, the air port between cover and the tuyere small sleeve through flange; Said tuyere small sleeve inwall is compounded with the ceramic layer that one deck is combined closely, and outer wall is compounded with graphite linings.
According to another preferred embodiment, a kind of tuyere cover of blast furnace comprises further in the said air port that the bottom of cover and tuyere small sleeve is provided with ring flange, and said ring flange is fixed in said tuyere big sleeve and the air port through web member and overlaps the top.
According to another preferred embodiment, a kind of tuyere cover of blast furnace further comprises in said ring flange and tuyere big sleeve, the air port and also is provided with sealing member between the cover.
According to another preferred embodiment, a kind of tuyere cover of blast furnace comprises that further said web member is studs, nuts and washers.
According to another preferred embodiment, a kind of tuyere cover of blast furnace comprises that further the material of cover and tuyere small sleeve is a steel alloy in said tuyere big sleeve, the air port.
The invention has the beneficial effects as follows: the air port cover that (1) adopts flange form to connect is installed simple, convenient disassembly, can be reduced site operation personnel's labour intensity greatly.
(2) adopt resistant to elevated temperatures sealing member, its good airproof performance between the air port cover that adopts flange form to connect.
(3) the air port cover that adopts flange form to connect is installed, dismounting is little near the refractory materials influence of building by laying bricks or stones the air port.
(4) ceramic layer has good wear resistance and erosion resistance.
(5) outer wall adopts heat insulation, resistant to elevated temperatures graphite linings, can prevent the scaling loss in the smelting process effectively, thus the work-ing life of effectively improving the blast-furnace smelting tuyere small sleeve.
Description of drawings
Fig. 1 is the structural representation of the preferred embodiments of the present invention;
Among the figure: 1, tuyere big sleeve, 2, overlap in the air port, 3, tuyere small sleeve, 4, graphite linings, 5, ceramic layer, 6, web member.
Embodiment
Combine accompanying drawing and preferred embodiment that the present invention is done further detailed explanation now.These accompanying drawings are the synoptic diagram of simplification, substruction of the present invention only is described in a schematic way, so it only show the formation relevant with the present invention.
A kind of tuyere cover of blast furnace as shown in Figure 1; Comprise cover 2 and tuyere small sleeve 3 in tuyere big sleeve 1, the air port; The material of cover 2 and tuyere small sleeve 3 is a steel alloy in said tuyere big sleeve 1, the air port; Connect fixingly in said tuyere big sleeve 1, the air port between cover 2 and the tuyere small sleeve 3 through flange, said tuyere small sleeve 3 inwalls are compounded with the ceramic layer 5 that one deck is combined closely, and outer wall is compounded with graphite linings 4; The bottom of cover 2 and tuyere small sleeve 3 is provided with ring flange in the said air port; Said ring flange is fixed on cover 2 tops in said tuyere big sleeve 1 and the air port through web member 6, and said web member 6 is studs, nuts and washers, also is provided with sealing member between the cover 2 in said ring flange and tuyere big sleeve 1, the air port.
That the air port cover that the present invention adopts flange form to connect is installed is simple, convenient disassembly, can reduce site operation personnel's labour intensity greatly; Near to building by laying bricks or stones the air port refractory materials influence is little, adopts resistant to elevated temperatures sealing member, good seal performance between the cover of air port; Simultaneously; Tuyere small sleeve 3 inwalls are compounded with the ceramic layer 5 that one deck is combined closely, and outer wall is compounded with graphite linings 4, make tuyere small sleeve 3 have good wear resistance and erosion resistance; Can prevent the scaling loss in the smelting process effectively, thus the work-ing life of effectively improving blast-furnace smelting tuyere small sleeve 3.
With above-mentioned foundation desirable embodiment of the present invention is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this invention technological thought.The technical scope of this invention is not limited to the content on the specification sheets, must confirm its technical scope according to the claim scope.
Claims (5)
1. tuyere cover of blast furnace; Comprise cover (2) and tuyere small sleeve (3) in tuyere big sleeve (1), the air port; It is characterized in that: connect fixing in said tuyere big sleeve (1), the air port between cover (2) and the tuyere small sleeve (3) through flange; Said tuyere small sleeve (3) inwall is compounded with the ceramic layer (5) that one deck is combined closely, and outer wall is compounded with graphite linings (4).
2. a kind of tuyere cover of blast furnace according to claim 1; It is characterized in that: the bottom of cover (2) and tuyere small sleeve (3) is provided with ring flange in the said air port, and said ring flange is fixed on cover (2) top in said tuyere big sleeve (1) and the air port through web member (6).
3. a kind of tuyere cover of blast furnace according to claim 1 is characterized in that: also be provided with sealing member between the cover (2) in said ring flange and tuyere big sleeve (1), the air port.
4. a kind of tuyere cover of blast furnace according to claim 2 is characterized in that: said web member (6) is studs, nuts and washers.
5. a kind of tuyere cover of blast furnace according to claim 1 is characterized in that: the material of cover (2) and tuyere small sleeve (3) is a steel alloy in said tuyere big sleeve (1), the air port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105759585A CN102559972A (en) | 2010-12-07 | 2010-12-07 | Blast furnace air port sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105759585A CN102559972A (en) | 2010-12-07 | 2010-12-07 | Blast furnace air port sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102559972A true CN102559972A (en) | 2012-07-11 |
Family
ID=46406571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105759585A Pending CN102559972A (en) | 2010-12-07 | 2010-12-07 | Blast furnace air port sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102559972A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451345A (en) * | 2012-05-31 | 2013-12-18 | 宝钢集团有限公司 | Front-end armoured full-oxygen tuyere structure |
| CN106435076A (en) * | 2016-09-18 | 2017-02-22 | 中冶华天南京工程技术有限公司 | Blast furnace tuyere equipment with pressing device and installation method thereof |
| CN110029199A (en) * | 2019-06-03 | 2019-07-19 | 安徽马钢设备检修有限公司 | Large blast furnace tuyere medium sleeve automatic disassembling device |
| CN110628975A (en) * | 2019-09-11 | 2019-12-31 | 大冶特殊钢有限公司 | Tuyere ceramic sleeve for blast furnace ironmaking |
| CN114369694A (en) * | 2022-01-10 | 2022-04-19 | 广东韶钢松山股份有限公司 | Blast furnace tuyere and method for preventing tuyere from upwarping |
| CN118702498A (en) * | 2024-08-15 | 2024-09-27 | 山东东泰铜业股份有限公司 | Composite material lined casing and manufacturing equipment thereof |
-
2010
- 2010-12-07 CN CN2010105759585A patent/CN102559972A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103451345A (en) * | 2012-05-31 | 2013-12-18 | 宝钢集团有限公司 | Front-end armoured full-oxygen tuyere structure |
| CN106435076A (en) * | 2016-09-18 | 2017-02-22 | 中冶华天南京工程技术有限公司 | Blast furnace tuyere equipment with pressing device and installation method thereof |
| CN110029199A (en) * | 2019-06-03 | 2019-07-19 | 安徽马钢设备检修有限公司 | Large blast furnace tuyere medium sleeve automatic disassembling device |
| CN110029199B (en) * | 2019-06-03 | 2024-02-02 | 安徽马钢设备检修有限公司 | Automatic dismounting device for middle sleeve of large blast furnace tuyere |
| CN110628975A (en) * | 2019-09-11 | 2019-12-31 | 大冶特殊钢有限公司 | Tuyere ceramic sleeve for blast furnace ironmaking |
| CN114369694A (en) * | 2022-01-10 | 2022-04-19 | 广东韶钢松山股份有限公司 | Blast furnace tuyere and method for preventing tuyere from upwarping |
| CN118702498A (en) * | 2024-08-15 | 2024-09-27 | 山东东泰铜业股份有限公司 | Composite material lined casing and manufacturing equipment thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120711 |