CN103882171A - Blast furnace tuyere - Google Patents
Blast furnace tuyere Download PDFInfo
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- CN103882171A CN103882171A CN201410112681.0A CN201410112681A CN103882171A CN 103882171 A CN103882171 A CN 103882171A CN 201410112681 A CN201410112681 A CN 201410112681A CN 103882171 A CN103882171 A CN 103882171A
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- air channel
- tuyere
- blast
- hot
- furnace tuyere
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Abstract
The invention provides a blast furnace tuyere. The blast furnace tuyere comprises a tuyere body, wherein a hot air channel is arranged in the middle part of the tuyere body, a cooling water chamber is arranged to surround the hot air channel, a water inlet and a water outlet both communicated with the cooling water chamber are formed in the tuyere body, a wearproof and high temperature-resistant inlay layer is arranged on the inner wall of the hot air channel, and the inlay layer comprises a plurality of inlays which are distributed at intervals in the axial direction and the circumferential direction of the hot air channel. As the wearproof and high temperature-resistant inlay layer arranged on the inner wall of the hot air channel of the blast furnace tuyere is capable of resisting pulverized coal scouring for a long time, the service life of the blast furnace tuyere can be increased to a large extent and the downtime ratio of the blast furnace can be reduced; as the inlays are distributed at intervals in the axial direction and the circumferential direction of the hot air channel, the damage to the inlay layer due to copper shrinkage after casting is finished can be avoided and the rate of finished products of the blast furnace tuyere in the manufacturing process can be increased, and furthermore, the economic benefit of a blast furnace tuyere manufacture can be increased.
Description
Technical field
The present invention relates to technical field of blast furnace ironmaking, concrete is a kind of blast-furnace tuyere.
Background technology
On the blast furnace of ironmaking, need to be by air port to heat air delivery in stove, also need by air port to coal injection in stove simultaneously, because coal dust is particulate state, once spray gun deflection or other reasons, easily cause the wearing and tearing of blast-furnace tuyere, easily leaks in stove after blast-furnace tuyere is worn.
In order to reduce the wearing and tearing of blast-furnace tuyere, extend the work-ing life of blast-furnace tuyere, start at present casting wear-resistant lining around the hot-air channel at blast-furnace tuyere center, anti-wearing liner used is integrative-structure, and blast-furnace tuyere is made by casting in bronze and formed, because blast-furnace tuyere has been cast rear copper and shunk, be easy to anti-wearing liner to squeeze broken, or extrude crackle, cause blast-furnace tuyere yield rate in manufacturing processed low, affect air port manufacturing firm economic benefit.The existing weak point of prior art that Here it is.
Summary of the invention
Technical problem to be solved by this invention, is exactly for the existing deficiency of prior art, and a kind of blast-furnace tuyere is provided, and its fabrication yield is high, long service life.
This programme is achieved by the following technical measures: a kind of blast-furnace tuyere, comprise tuyere body, described tuyere body middle part is provided with hot-air channel, the periphery of described hot-air channel is provided with cooling water cavity, in described tuyere body, be provided with the prosopyle and the posticum that are communicated with cooling water cavity, on the inwall of described hot-air channel, be provided with wear-resisting, resistant to elevated temperatures mosaic coating, described mosaic coating comprises multiple mosaics spaced apart axially and on hoop at hot-air channel.
Above-mentioned mosaic coating is mosaic abrasion-proof porcelain piece.Mosaic abrasion-proof porcelain piece, can resist coal dust the long period washes away, can improve greatly the air port life-span, simultaneously, mosaic abrasion-proof porcelain piece also has certain heat-blocking action, can reduce the heat exchange of the cold water in hot blast and the cooling water cavity in hot-air channel, reduce calorific loss, be beneficial to energy Conservation of Blast Furnace.
Above-mentioned mosaic abrasion-proof porcelain piece is distributed on the inwall of hot-air channel leading portion.
Above-mentioned mosaic abrasion-proof porcelain piece is distributed on the whole inwall of hot-air channel.
Above-mentioned mosaic abrasion-proof porcelain piece embedding is cast on the inwall of hot-air channel.
The cast setting of above-mentioned mosaic abrasion-proof porcelain piece is on the inwall of hot-air channel.
Above-mentioned cooling water cavity is distributed in the posterior segment of tuyere body in the form of a ring.
The outside of above-mentioned tuyere body leading portion and be provided with foremost water coolant spiral channel.The water coolant spiral channel arranging has turbulent flow and increases the effect of heat exchange.
Above-mentioned water-in and water outlet are arranged on the end face of tuyere body rear end.
Beneficial effect of the present invention can be learnt from above-mentioned technical scheme: a kind of blast-furnace tuyere, comprise tuyere body, described tuyere body middle part is provided with hot-air channel, the periphery of described hot-air channel is provided with cooling water cavity, in described tuyere body, be provided with the prosopyle and the posticum that are communicated with cooling water cavity, on the inwall of described hot-air channel, be provided with wear-resisting, resistant to elevated temperatures mosaic coating, described mosaic coating comprises multiple mosaics spaced apart axially and on hoop at hot-air channel.Wear-resisting, the resistant to elevated temperatures mosaic coating arranging in hot-air channel due to this blast-furnace tuyere can be resisted coal dust the long period and wash away, and therefore, can improve greatly the life-span of blast-furnace tuyere, reduces blast furnace staying rate; Because described mosaic is in the axial direction of hot-air channel and spaced apart on hoop, can avoid cast rear copper and shrink the destruction to mosaic coating, can improve blast-furnace tuyere yield rate in manufacturing processed, and then raising blast-furnace tuyere manufacturing firm economic benefit.
As can be seen here, the present invention compared with prior art, has substantive distinguishing features and progress, and the beneficial effect of its enforcement is also apparent.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1-tuyere body, 2-cooling water cavity, 3-water coolant spiral channel, 4-hot-air channel, 5-mosaic abrasion-proof porcelain piece, 6-prosopyle, 7-posticum.
Embodiment
For clearly demonstrating the technical characterstic of this programme, below by embodiment, and in conjunction with its accompanying drawing, this programme is set forth.
A kind of blast-furnace tuyere, a kind of blast-furnace tuyere, comprise tuyere body 1, described tuyere body 1 middle part is provided with hot-air channel 4, the periphery of described hot-air channel 4 is provided with cooling water cavity 2, in described tuyere body 1, be provided with the prosopyle 6 and the posticum 7 that are communicated with cooling water cavity 2, be provided with wear-resisting, resistant to elevated temperatures mosaic coating on the inwall of described hot-air channel 4, described mosaic coating comprises multiple mosaics spaced apart axially and on hoop at hot-air channel 4.Can resist coal dust the long period at wear-resisting, the resistant to elevated temperatures mosaic coating of hot-air channel 4 interior settings and wash away due to this blast-furnace tuyere, therefore, can improve greatly the life-span of blast-furnace tuyere, reduce blast furnace staying rate; Because described mosaic is in the axial direction of hot-air channel and spaced apart on hoop, can avoid cast rear copper and shrink the destruction to mosaic coating, can improve blast-furnace tuyere yield rate in manufacturing processed, and then raising blast-furnace tuyere manufacturing firm economic benefit.
Described mosaic is abrasion-proof porcelain piece, and described mosaic coating is mosaic abrasion-proof porcelain piece 5.Mosaic abrasion-proof porcelain piece 5 can be resisted coal dust the long period and wash away, can improve greatly the air port life-span, simultaneously, mosaic abrasion-proof porcelain piece 5 also has certain heat-blocking action, can reduce the heat exchange of the cold water in hot blast and the cooling water cavity 2 in hot-air channel 4, reduce calorific loss, be beneficial to energy Conservation of Blast Furnace.
Described cooling water cavity 2 is distributed in the posterior segment of tuyere body 1 in the form of a ring.
The outside of described tuyere body 1 leading portion and be provided with foremost water coolant spiral channel 3.The water coolant spiral channel 3 arranging has turbulent flow and increases the effect of heat exchange.
Described mosaic abrasion-proof porcelain piece 5 is distributed on the inwall of hot-air channel 4 leading portions.
Described mosaic abrasion-proof porcelain piece 5 embedding castings or cast setting are on the inwall of hot-air channel 4.
Described water-in 6 and water outlet 7 are arranged on the end face of tuyere body 1 rear end.
Be with the difference of embodiment 1: described in state on the whole inwall that mosaic abrasion-proof porcelain piece 5 is distributed in hot-air channel 4.
In the present invention, can pass through or adopt existing techniques in realizing without the technical characterictic of describing; do not repeat them here; certainly; above-mentioned explanation is not limitation of the present invention; the present invention is also not limited in above-mentioned embodiment; variation, remodeling, interpolation or replacement that those of ordinary skill in the art makes in essential scope of the present invention, also should belong to protection scope of the present invention.
Claims (9)
1. a blast-furnace tuyere, comprise tuyere body, described tuyere body middle part is provided with hot-air channel, the periphery of described hot-air channel is provided with cooling water cavity, in described tuyere body, be provided with the prosopyle and the posticum that are communicated with cooling water cavity, it is characterized in that: on the inwall of described hot-air channel, be provided with wear-resisting, resistant to elevated temperatures mosaic coating, described mosaic coating comprises multiple mosaics spaced apart axially and on hoop at hot-air channel.
2. blast-furnace tuyere according to claim 1, is characterized in that: described mosaic coating is mosaic abrasion-proof porcelain piece.
3. blast-furnace tuyere according to claim 2, is characterized in that: described mosaic abrasion-proof porcelain piece is distributed on the inwall of hot-air channel leading portion.
4. blast-furnace tuyere according to claim 2, is characterized in that: described mosaic abrasion-proof porcelain piece is distributed on the whole inwall of hot-air channel.
5. according to the blast-furnace tuyere described in claim 3 or 4, it is characterized in that: described mosaic abrasion-proof porcelain piece embedding is cast on the inwall of hot-air channel.
6. according to the blast-furnace tuyere described in claim 3 or 4, it is characterized in that: the cast setting of described mosaic abrasion-proof porcelain piece is on the inwall of hot-air channel.
7. blast-furnace tuyere according to claim 1 and 2, is characterized in that: described cooling water cavity is distributed in the posterior segment of tuyere body in the form of a ring.
8. blast-furnace tuyere according to claim 1 and 2, is characterized in that: the outside of described tuyere body leading portion and be provided with foremost water coolant spiral channel.
9. blast-furnace tuyere according to claim 1, is characterized in that: described water-in and water outlet are arranged on the end face of tuyere body rear end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112681.0A CN103882171A (en) | 2014-03-25 | 2014-03-25 | Blast furnace tuyere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410112681.0A CN103882171A (en) | 2014-03-25 | 2014-03-25 | Blast furnace tuyere |
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| Publication Number | Publication Date |
|---|---|
| CN103882171A true CN103882171A (en) | 2014-06-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410112681.0A Pending CN103882171A (en) | 2014-03-25 | 2014-03-25 | Blast furnace tuyere |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070235910A1 (en) * | 2006-04-11 | 2007-10-11 | Hae-Yang Lee | Double chamber single directional spiral tuyere for blast furnaces |
| CN201180142Y (en) * | 2008-01-31 | 2009-01-14 | 烟台万隆真空冶金有限公司 | Long-life wind gap for ironmaking blast furnace |
| CN102181594A (en) * | 2011-05-20 | 2011-09-14 | 烟台万隆真空冶金有限公司 | Wear-resisting blast-furnace tuyere small jacket |
| CN203923233U (en) * | 2014-03-25 | 2014-11-05 | 济钢集团有限公司 | A kind of blast-furnace tuyere |
-
2014
- 2014-03-25 CN CN201410112681.0A patent/CN103882171A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070235910A1 (en) * | 2006-04-11 | 2007-10-11 | Hae-Yang Lee | Double chamber single directional spiral tuyere for blast furnaces |
| CN201180142Y (en) * | 2008-01-31 | 2009-01-14 | 烟台万隆真空冶金有限公司 | Long-life wind gap for ironmaking blast furnace |
| CN102181594A (en) * | 2011-05-20 | 2011-09-14 | 烟台万隆真空冶金有限公司 | Wear-resisting blast-furnace tuyere small jacket |
| CN203923233U (en) * | 2014-03-25 | 2014-11-05 | 济钢集团有限公司 | A kind of blast-furnace tuyere |
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Application publication date: 20140625 |