CN2541466Y - Combined multihole oxygen jet - Google Patents
Combined multihole oxygen jet Download PDFInfo
- Publication number
- CN2541466Y CN2541466Y CN 02210697 CN02210697U CN2541466Y CN 2541466 Y CN2541466 Y CN 2541466Y CN 02210697 CN02210697 CN 02210697 CN 02210697 U CN02210697 U CN 02210697U CN 2541466 Y CN2541466 Y CN 2541466Y
- Authority
- CN
- China
- Prior art keywords
- convergent
- divergent channel
- oxygen lance
- divergent
- blow head
- 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 - Fee Related
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The utility model relates to an improvement of the converter steel-making equipment in the metallurgical industry, relating to a combined perforated oxygen lance spray cap, characterized in that a disc shell body which is arranged on the top of the oxygen lance spray cap is welded with a convergent-divergent channel together through a convergent-divergent channel outlet joint, and then welded with a convergent-divergent channel collecting pipe through a convergent-divergent channel inlet; the convergent-divergent channel outlet joint, the convergent-divergent channel and the convergent-divergent channel inlet are all on the same central line, spouts are homogeneously distributed on the same circular line of the disc shell body on the top of the spray cap, and convergent-divergent channel outlets are homogeneously distributed on the same circular line of the bottom of the convergent-divergent channel collecting pipe; and the central line of each spout has an included angle alpha of 10 degrees to 16 degrees with the central line of the spray cap. The utility model has reasonable design and convenient processing, saves material, reduces producing cost, decreases the thermal resistance and the hydraulic resistance, and increases the cooling space and the effective cooling area, and thereby the water flow is distributed reasonably. Moreover, the utility model enhances the cooling intensity and advances the utilizing life of the oxygen lance spray cap.
Description
Technical field the utility model is the improvement to metallurgy industry converter steelmaking equipment, relates to a kind of combined porous oxygen lance blow head.
Background technology oxygen rifle is the key equipment of converter steelmaking, and the design of its shower nozzle, manufacturing and service condition are to improving output of steel, quality and reducing production costs particularly important.The conventional oxygen lance blow head that uses of domestic iron and steel enterprises is to adopt fine copper to make through monoblock casting, semi-monolithic extruding and forging.The oxygen lance blow head that monoblock casting is produced exists that cast structure is loose, defective is many and drawback such as rough inner surface.The common feature of above-mentioned three kinds of structures is that oxygen lance blow head top and other position all make with fine copper; Little or whole linking to each other of space between each convergent-divergent channel.This not only makes production cost increase, and the vertical thermal resistance of oxygen lance blow head is increased, and cooling space and active cooling surface be long-pending to be reduced, cooling intensity reduces, descend to work-ing life.
Summary of the invention the utility model purpose be design a kind of have make simple, cooling intensity is big, cost is low, the combined porous oxygen lance blow head of long service life.
The combined porous oxygen lance blow head content Description of the utility model:
The combined porous oxygen lance blow head of the utility model, form by oxygen lance blow head top disc shape housing, spout, convergent-divergent channel discharge coupling, high-pressure intake pipe, high-pressure outlet, convergent-divergent channel, convergent-divergent channel import, convergent-divergent channel collector, it is characterized in that: by the convergent-divergent channel discharge coupling oxygen lance blow head top disc shape housing and convergent-divergent channel are welded together, weld together by convergent-divergent channel import and convergent-divergent channel collector again; On oxygen lance blow head top disc shape housing, spout, convergent-divergent channel discharge coupling, high-pressure intake pipe, high-pressure outlet are set; Convergent-divergent channel discharge coupling, convergent-divergent channel and convergent-divergent channel import are all on same medullary ray, spout is evenly distributed on the same circumferential line on the shower nozzle top disc shape housing, and the convergent-divergent channel import is evenly distributed on the same circumferential line on the convergent-divergent channel collector bottom; Each spout medullary ray and shower nozzle medullary ray are α=10～16 ° angle.
The combined porous oxygen lance blow head of the utility model resolves into the oxygen lance blow head of complexity the parts of three simple in structure and easy processing in design, has guaranteed processing quality.The oxygen lance blow head end can be adopted oxygen free copper or chromium bronze to forge and be shaped, and can also carry out surface hardening or solid solution aging and handle, and makes dense structure, defective seam, has good mechanical performance and high thermal conductivity.Convergent-divergent channel and convergent-divergent channel collector can adopt brass or ferrous materials manufacturing, save material, and convenient processing has not only improved and also reduced production cost work-ing life.Convergent-divergent channel outlet on the oxygen lance blow head is with identical space, be distributed on the same circumferential line of oxygen lance blow head top disc shape housing divergent shape, principal weld is avoided high temperature and district easy to wear, thus can be at the oxygen lance blow head top the inboard of the region intermediate of easy scaling loss form the slick hollow section of wall, can reduce thermal resistance and flow resistance, increase cooling space and increase active cooling surface and amass, current are rationally distributed, strengthen cooling intensity, the work-ing life of having improved oxygen lance blow head.
Description of drawings Fig. 1 is built-up type 3 hole oxygen lance blow head structural representations
Among Fig. 1: 1 is that oxygen lance blow head top disc shape housing, 2 is that spout, 3 is that convergent-divergent channel discharge coupling, 4 is that high-pressure intake pipe, 5 is that high-pressure outlet, 6 is that convergent-divergent channel, 7 is that convergent-divergent channel collector, 8 is the convergent-divergent channel import.
Embodiment the utility model built-up type 3 hole oxygen lance blow heads are to realize like this, see Fig. 1, to adopt earlier that fine copper makes for oxygen lance blow head top disc shape housing 1, oxygen lance blow head top disc shape housing 1 and convergent-divergent channel 6 are welded together by convergent-divergent channel discharge coupling 3, weld together by convergent-divergent channel import 8 and convergent-divergent channel collector 7 again; On oxygen lance blow head top disc shape housing 1,3 spouts 2, convergent-divergent channel discharge coupling 3 are set, high-pressure intake pipe 4, high-pressure outlet 5; Convergent-divergent channel discharge coupling 3, convergent-divergent channel 6 and convergent-divergent channel import 8 are all on same medullary ray, 3 spouts 2 are distributed on the same circumferential line on oxygen lance blow head top disc shape housing 1 end face with identical space, and 3 convergent-divergent channel imports 8 are distributed on the same circumferential line on convergent-divergent channel collector 7 bottom surfaces with identical space; The medullary ray of 3 convergent-divergent channels 6 all is α=12 ° angle with the oxygen lance blow head medullary ray.Oxygen flows into each convergent-divergent channel 6 by convergent-divergent channel collector 7 during work, injects bath through spout 2; High pressure water, is entered 5 pairs of shower nozzles of high-pressure outlet and cools off through the space of convergent-divergent channel collector 7 outsides, convergent-divergent channel 6 and the inboard of oxygen lance blow head top disc shape housing 1 by high-pressure intake pipe 4.
Claims (1)
1, a kind of combined porous oxygen lance blow head, form by oxygen lance blow head top disc shape housing, spout, convergent-divergent channel discharge coupling, high-pressure intake pipe, high-pressure outlet, convergent-divergent channel, convergent-divergent channel import, convergent-divergent channel collector, it is characterized in that: by the convergent-divergent channel discharge coupling oxygen lance blow head top disc shape housing and convergent-divergent channel are welded together, weld together by convergent-divergent channel import and convergent-divergent channel collector again; On oxygen lance blow head top disc shape housing, spout, convergent-divergent channel discharge coupling, high-pressure intake pipe, high-pressure outlet are set; Convergent-divergent channel discharge coupling, convergent-divergent channel and convergent-divergent channel import are all on same medullary ray, the average branch of spout in the sixth of the twelve Earthly Branches is on the same circumferential line on the shower nozzle top disc shape housing, and the convergent-divergent channel import is evenly distributed on the same circumferential line on the convergent-divergent channel collector bottom; Each spout medullary ray and shower nozzle medullary ray are α=10～16 ° angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02210697 CN2541466Y (en) | 2002-03-19 | 2002-03-19 | Combined multihole oxygen jet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02210697 CN2541466Y (en) | 2002-03-19 | 2002-03-19 | Combined multihole oxygen jet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2541466Y true CN2541466Y (en) | 2003-03-26 |
Family
ID=33690780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02210697 Expired - Fee Related CN2541466Y (en) | 2002-03-19 | 2002-03-19 | Combined multihole oxygen jet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2541466Y (en) |
-
2002
- 2002-03-19 CN CN 02210697 patent/CN2541466Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |