CN203904378U - Bending loss resistant blast furnace wind gap structure - Google Patents
Bending loss resistant blast furnace wind gap structure Download PDFInfo
- Publication number
- CN203904378U CN203904378U CN201420211629.6U CN201420211629U CN203904378U CN 203904378 U CN203904378 U CN 203904378U CN 201420211629 U CN201420211629 U CN 201420211629U CN 203904378 U CN203904378 U CN 203904378U
- Authority
- CN
- China
- Prior art keywords
- blast
- wind gap
- water
- bent
- 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.)
- Expired - Lifetime
Links
- 238000005452 bending Methods 0.000 title abstract 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 26
- 238000001816 cooling Methods 0.000 claims abstract description 19
- 239000002826 coolant Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000013016 damping Methods 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 108091006146 Channels Proteins 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000003449 preventive effect Effects 0.000 description 1
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
A bending loss resistant blast furnace wind gap structure is used for supplying air for a blast furnace. The bending loss resistant blast furnace wind gap structure comprises a wind gap body (1) which is cylindrical, wherein an air inlet end (3) and an air outlet end (4) are formed in two ends of the bending loss resistant blast furnace wind gap structure respectively; a protruding mounting rand is arranged on the outer surface of the circumference of the wind gap body at the position close to the air inlet end; a cooling cavity (2) through which cooling water can pass is formed inside the side wall of the wind gap body; a water inlet (5) and a water outlet (6) are formed in the end surface of the air inlet end of the wind gap body. The bending loss resistant blast furnace wind gap structure is characterized in that the water inlet is formed in the side part of the end surface of the air inlet end; the water outlet is formed in the top part of the end surface of the air inlet end. According to the bending loss resistant blast furnace wind gap structure, under the same restraint, the safety factor is 12 times as that of a normal wind gap.
Description
Technical field
The utility model relates to the blast furnace peripheral equipment of field of metallurgy, more particularly, relates to a kind of anti-bent blast-furnace tuyere structure damaging.
Background technology
Blast-furnace tuyere uses cycle of higher pressure water cooling, and material requires to have certain mechanical property and good thermal conductivity, and therefore blast-furnace tuyere is all to use pure copper material.In the metallurgical production of certain company, whether blast furnace state normally directly affects later process is produced and economic benefit, and blast furnace has been taked routine preventive maintenance system for this reason, and four months damping down periodical repairs of every blast furnace once.In normal production, require unplanned damping down and checking operating time more few better, but because the reason of the aspect such as equipment failure or production operation does not also reach the target that all blast furnaces unplanned damping down time or checking time are zero at present, wherein unexpected damaged and bent damage the in air port is one of common fault.The damage type in air port has wearing and tearing, melting loss, weld cracking, four kinds of forms of bent damage, because air port is positioned at air-supply arrangement foremost, cannot observe virtual condition, only have when cooling water flow meter detects while there is difference into water displacement and could find Tuyere Damage, for fear of damaging suddenly and cause blast furnace staying to stop production because of air port, so air port management adopts periodic replacement method, be 2 to 3 times (8-10 months) in periodical repair cycle general duration of service.Along with the raising of air port manufacturing technology, damage and cause the time of blast furnace staying can be controlled at very low level because of first three kind at present, have the bent fault of damaging in air port only and do not prevent so far means and effective initiatively countermeasure, be not always the case both at home and abroad.
Utility model content
For solving the problems of the technologies described above, by studying air port internal cooling aquaporin to the in use impact of cooling performance of air port and the rigidity reinforced structure of tuyere body external force resistance, the utility model carries out texture improvement to existing common air port, a kind of anti-bent blast-furnace tuyere structure damaging is provided, and technical scheme is as follows.
A kind of anti-bent blast-furnace tuyere structure damaging, for the air-supply of blast furnace, comprise tubular, be formed with respectively the tuyere body of air intake and outlet air end at two ends, the interior that forms bossed installation collar, described tuyere body on all side external surfaces of described tuyere body near air intake is formed with on the air intake end face that can lead to the cooling chamber of water coolant, described tuyere body and is formed with water-in and water port, it is characterized in that: described water-in is arranged at the sidepiece of air intake end face, described water port is arranged at the top of air intake end face.
Come off the intense impact of sticky object in air port is subject to stove time, outlet air end is downward-sloping, and the top of air intake end face produces larger displacement, easily makes flange leak, and therefore water-in is arranged to the sidepiece of the less air intake end face of displacement.In the time that the obliquity of inlet front end is no more than 12 °, there is not the phenomenon of seriously leaking out, cooling water inlet pipe does not leak, and keeps the water yield set, and the water port at top allows the backwater of water coolant to leak, and still can maintain blast furnace and normally produce.
The anti-bent blast-furnace tuyere structure damaging, is characterized in that: the bottom of described cooling chamber is provided with the bottom gusset arranging vertically, and the thickness of described bottom gusset is 8-12mm.
The anti-bent blast-furnace tuyere structure damaging, is characterized in that: the top of described cooling chamber is provided with the top gusset of the grid arranging vertically, and the thickness of described top gusset is 8-12mm.
Thus, neither affect water stream channel, can significantly improve again the ability that impacts of anti-top, air port cast,
The anti-bent blast-furnace tuyere structure damaging, is characterized in that: the top of described cooling chamber is provided with the water drain circulation road side plate being connected with described water port.
Thus, bootable draining is discharged.
According to a kind of anti-bent blast-furnace tuyere structure damaging of the present utility model, can ensure cooling performance, through finite element analysis computation, in identical air port upper load, under identical constraint condition, the safety coefficient of a kind of anti-bent blast-furnace tuyere structure damaging of the present utility model is 12 times of common air port.
Brief description of the drawings
Fig. 1 is the use schematic diagram of blast-furnace tuyere.
Fig. 2 is the structural representation of the anti-bent blast-furnace tuyere damaging of the present utility model
Fig. 3 is the blast inlet end view of the anti-bent blast-furnace tuyere damaging of the present utility model.
Fig. 4 is the longitudinal profile schematic diagram of the anti-bent blast-furnace tuyere damaging of the present utility model.
Wherein 1 is tuyere body, and 2 is cooling chamber, and 3 is air intake, and 4 is outlet air end, and 5 is water-in, and 6 is water outlet, and 7 is bottom gusset, and 8 is top gusset, and 9 is water drain circulation road side plate.
Embodiment
Embodiment 1
A kind of anti-bent blast-furnace tuyere structure damaging, for the air-supply of blast furnace, comprise tubular, be formed with the tuyere body of air intake and outlet air end, the interior of described tuyere body is formed with on the air intake end face of cooling chamber, described tuyere body and is formed with water-in and water port.
Described water-in is arranged at the sidepiece of air intake end face, and described water port is arranged at the top of air intake end face.
The bottom gusset that the bottom of described cooling chamber is provided with vertically and arranges, thickness is 10mm.
The top gusset of the grid that the top of described cooling chamber is provided with vertically and arranges, thickness is 10mm.
The top of described cooling chamber is provided with the water drain circulation road side plate being connected with described water port.
According to a kind of anti-bent blast-furnace tuyere structure damaging of the present utility model, can ensure cooling performance, through finite element analysis computation, in identical air port upper load, under identical constraint condition, the safety coefficient of a kind of anti-bent blast-furnace tuyere structure damaging of the present utility model is 12 times of common air port.
Claims (6)
1. the anti-bent blast-furnace tuyere structure damaging, for the air-supply of blast furnace, comprise tubular, be formed with respectively the tuyere body (1) of air intake (3) and outlet air end (4) at two ends, on all side external surfaces of described tuyere body near air intake, form bossed installation collar, the interior of described tuyere body is formed with the cooling chamber (2) that can lead to water coolant, on the air intake end face of described tuyere body, be formed with water-in (5) and water port (6), it is characterized in that: described water-in is arranged at the sidepiece of air intake end face, described water port is arranged at the top of air intake end face.
2. a kind of anti-bent blast-furnace tuyere structure damaging according to claim 1, is characterized in that: the bottom of described cooling chamber is provided with the bottom gusset (7) arranging vertically.
3. a kind of anti-bent blast-furnace tuyere structure damaging according to claim 2, is characterized in that: the thickness of described bottom gusset is 8-12mm.
4. a kind of anti-bent blast-furnace tuyere structure damaging according to claim 1, is characterized in that: the top of described cooling chamber is provided with the top gusset (8) of the grid arranging vertically.
5. a kind of anti-bent blast-furnace tuyere structure damaging according to claim 4, is characterized in that: the thickness of described top gusset is 8-12mm.
6. a kind of anti-bent blast-furnace tuyere structure damaging according to claim 1, is characterized in that: the top of described cooling chamber is provided with the water drain circulation road side plate (9) being connected with described water port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211629.6U CN203904378U (en) | 2014-04-28 | 2014-04-28 | Bending loss resistant blast furnace wind gap structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420211629.6U CN203904378U (en) | 2014-04-28 | 2014-04-28 | Bending loss resistant blast furnace wind gap structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203904378U true CN203904378U (en) | 2014-10-29 |
Family
ID=51778669
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420211629.6U Expired - Lifetime CN203904378U (en) | 2014-04-28 | 2014-04-28 | Bending loss resistant blast furnace wind gap structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203904378U (en) |
-
2014
- 2014-04-28 CN CN201420211629.6U patent/CN203904378U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141029 |