CN206467262U - Novel long-life blast-furnace tuyere - Google Patents
Novel long-life blast-furnace tuyere Download PDFInfo
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- CN206467262U CN206467262U CN201720090691.8U CN201720090691U CN206467262U CN 206467262 U CN206467262 U CN 206467262U CN 201720090691 U CN201720090691 U CN 201720090691U CN 206467262 U CN206467262 U CN 206467262U
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- preceding cap
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Abstract
The utility model is related to a kind of annex of blast furnace air-supply cooling device, more particularly to a kind of novel long-life blast-furnace tuyere, and it belongs to ironmaking equipment technical field.It mainly includes body, and weld seam is provided with provided with preceding cap, rear end in the front end of the body；Spiral stream guidance set is provided between body and preceding cap, the flow guide sleeve combines to form spirality channel with preceding cap；The area of the cross section of the water channel from front to back, from top to bottom becomes larger；The internal taper hole front end of the preceding cap and the transition position at rear portion are change wall thickness structure.The beneficial effects of the utility model are：The design of water channel is more conducive to heat transfer, and its cross-sectional area is smaller, then flow velocity is faster, so that cooling velocity is also faster；The size for situation adjustment passage cross section product of being heated for preceding cap so that preceding cap is integrally heated evenly, own temperature balanced and heat-resistant anti-fatigue is strong, so as to reach the purpose of extension air port service life.
Description
Technical field
The utility model is related to a kind of annex of blast furnace air-supply cooling device, more particularly to a kind of novel long-life blast furnace
Air port, it belongs to ironmaking equipment technical field.
Background technology
Blast-furnace tuyere in actual use, subjects very big hot-fluid impact in ironmaking, can be because of very big temperature
Change produces thermal stress effect and causes heat-resistant anti-fatigue.The longitudinal direction of especially preceding cap portion is heated be front end it is higher than rear end temperature,
It is transversal to being that top is higher than temperature of lower because heated inequality, easily cause the generation of the phenomenons such as front end cracking, melting loss, so as to lead
The service life in air port is caused to shorten, it is necessary to frequently change air port, it is difficult to maintain the stable smooth operation of conditions of blast furnace.
Utility model content
There is provided a kind of novel long-life blast-furnace tuyere for above-mentioned the deficiencies in the prior art for the utility model.
The technical scheme that the utility model solves above-mentioned technical problem is as follows：
A kind of novel long-life blast-furnace tuyere, including body, weld seam is provided with the front end of the body provided with preceding cap, rear end；
Spiral stream guidance set is provided between body and preceding cap, the flow guide sleeve combines to form spirality channel with preceding cap；The water channel
The area of cross section from front to back, from top to bottom becomes larger.
Compared with prior art, the beneficial effects of the utility model are：The design of water channel is more conducive to heat transfer, its cross section
Product is smaller, then flow velocity is faster, so that cooling velocity is also faster；The size for situation adjustment passage cross section product of being heated for preceding cap,
So that preceding cap is integrally heated evenly, own temperature balanced and heat-resistant anti-fatigue is strong, so as to reach the purpose of extension air port service life.
On the basis of above-mentioned technical proposal, the utility model can also do following improvement.
Further, the transition position 6 at the internal taper hole front end of the preceding cap and rear portion is change wall thickness structure.
Beneficial effect using above-mentioned further scheme is：Both the non-deformability at the position had been enhanced, spray is extended again
Coal is to the wearing- in period at this.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
In figure, 1, body；2nd, weld seam；3rd, preceding cap；4th, flow guide sleeve；5th, water channel；6th, the internal taper hole front end and rear portion of preceding cap
Transition position.
Embodiment
Principle of the present utility model and feature are described below in conjunction with accompanying drawing, example is served only for explaining this practicality
It is new, it is not intended to limit scope of the present utility model.
A kind of novel long-life blast-furnace tuyere, including body 1, in the front end of the body 1 provided with preceding cap 3, rear end provided with weldering
Seam 2；Provided with spiral stream guidance set 4 between body 1 and preceding cap 3, the flow guide sleeve 4 combines to form spirality channel 5 with preceding cap 3；
The area of the cross section of the water channel 5 from front to back, from top to bottom becomes larger.
It follows that the water in water channel 5 is accelerated in the front end of preceding cap 3 than rear end flow velocity, under the top velocity ratio of preceding cap 3
Portion's flow velocity is accelerated, so that the heated higher front end of preceding cap 3 and top fast cooling, reach that equilibrium temperature, extension product make
With the purpose in life-span.
The internal taper hole front end of preceding cap 3 is with rear portion transition position 6 to become wall thickness structure, and the structure had both enhanced the resistance at the position
Shape ability, extends coal powder injection to the wearing- in period at this again.
Preferred embodiment of the present utility model is the foregoing is only, it is all in this practicality not to limit the utility model
Within new spirit and principle, any modification, equivalent substitution and improvements made etc. should be included in guarantor of the present utility model
Within the scope of shield.
Claims (2)
1. a kind of novel long-life blast-furnace tuyere, including body (1), set in the front end of the body (1) provided with preceding cap (3), rear end
There is weld seam (2)；Spiral stream guidance set (4) is provided between body (1) and preceding cap (3), the flow guide sleeve (4) combines with preceding cap (3)
Form spirality channel (5)；It is characterized in that：The area of the cross section of the water channel (5) is from front to back, from top to bottom gradually
Become big.
2. novel long-life blast-furnace tuyere according to claim 1, it is characterised in that：The internal taper hole front end of the preceding cap (3)
Transition position (6) with rear portion is change wall thickness structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720090691.8U CN206467262U (en) | 2017-01-24 | 2017-01-24 | Novel long-life blast-furnace tuyere |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720090691.8U CN206467262U (en) | 2017-01-24 | 2017-01-24 | Novel long-life blast-furnace tuyere |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206467262U true CN206467262U (en) | 2017-09-05 |
Family
ID=59703518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720090691.8U Active CN206467262U (en) | 2017-01-24 | 2017-01-24 | Novel long-life blast-furnace tuyere |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206467262U (en) |
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2017
- 2017-01-24 CN CN201720090691.8U patent/CN206467262U/en active Active
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