CN2138127Y - Hollow circular tuyere of blast furnace - Google Patents
Hollow circular tuyere of blast furnace Download PDFInfo
- Publication number
- CN2138127Y CN2138127Y CN 92235984 CN92235984U CN2138127Y CN 2138127 Y CN2138127 Y CN 2138127Y CN 92235984 CN92235984 CN 92235984 CN 92235984 U CN92235984 U CN 92235984U CN 2138127 Y CN2138127 Y CN 2138127Y
- Authority
- CN
- China
- Prior art keywords
- iron
- tuyere
- smelting
- blast furnace
- air port
- 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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- Manufacture And Refinement Of Metals (AREA)
Abstract
The utility model relates to a hollow cavity lantern ring type tuyere for an iron-smelting furnace which is a device in the air supply system of an iron-smelting blast furnace in iron and steel smelting. The utility model is a composite integration-shaped tuyere which is formed by the casting of a circular lantern ring which is made of a hollow cavity type red copper tuyere body and silicon carbide. When the utility model is adopted for iron smelting, iron liquid is in contact with the lantern ring. The direct smelting loss of the high temperature iron liquid to the hollow cavity type red copper tuyere body is avoided. The service life of the tuyere of an iron-smelting blast furnace is increased to 11-21 times. The times of the delay ratio of the blast furnace which is needed by tuyere replacement are reduced. The hollow cavity lantern ring type tuyere is benefit to stabilize production, increase raw iron output, and save energy resources.
Description
The utility model relates to a kind of device in the iron-smelting blast furnace supply air system in the smelting iron and steel---cavity lantern ring type iron-smelting furnace air port.
At present, the air-supply of home and abroad iron and steel enterprise iron-smelting blast furnace adopts the high temperature air air port of continuously flowing through in red copper cavity type air port to enter fire door, generates red-hot coal gas with carbon element effect before the air port, is heating, is reduced to the energy of fusing ore.Cupola well is stretched in the air port, and the front portion in air port is subject to the direct melting loss of high temperature iron liquid, and work-ing life is low, needs to change primary air nozzle in general 3～5 days, and changing the air port had both influenced blast furnace production, increased energy consumption again.
The utility model cavity lantern ring type iron-smelting furnace air port purpose is for iron-smelting blast furnace provides a kind of new air-supply arrangement, can avoid the direct melting loss of blast furnace iron liquid to the copper twyere body, improves the service efficiency in air port, the work-ing life in prolongation air port.
The utility model cavity lantern ring type iron-smelting furnace air port content Description:
The utility model cavity lantern ring type iron-smelting furnace air port is characterized in that it being the circular ring process casting of being made by the copper twyere body and the silicon carbide of cavity type, casts the ironmaking tuyere of blast furnace of a composite monolithic shape.
The utility model cavity lantern ring type iron-smelting furnace air port, the contact of iron liquid is on the collar when ironmaking, avoided the direct melting loss of high temperature iron liquid to red copper cavity type air port body, 10～20 times of work-ing lifes of ironmaking tuyere of blast furnace have been improved, reduce and change the required blast furnace staying number of times in air port, help stably manufactured, improve operation rate of blast furnace, improve pig iron output, save energy.The utility model can also be used for using on the shaft furnace that extracting metals or alloy be provided with the air port.
Embodiment:
Fig. 1 is the one-piece construction figure in cavity lantern ring type iron-smelting furnace air port.
Among the figure: 1 is that cavity type copper twyere body, 2 is the collar.Cavity type copper twyere body is a cylindrical shape, anterior diameter is big, the rear portion diameter is little, and having one in the body of air port, to be cone shape hole be the air port, and its cone angle is 4 degree angles, ventilate in stove by the air port, at leading section two symmetric holes are arranged,, water is injected in the cavity type copper twyere body by coolant intake for coolant intake and cooling water outlet, by the cooling water outlet water is discharged again, reach the purpose of water cycle.At the rear portion of cavity type copper twyere body two symmetric boss are arranged, the collar is fixed on the cavity type copper twyere body by two boss, the collar is the circular ring that silicon carbide is made, and the collar and cavity type copper twyere body are cast the air port of a composite monolithic shape by casting.
Claims (1)
1, a kind of air-supply arrangement of iron-smelting blast furnace-cavity lantern ring type iron-smelting furnace air port, it is characterized in that it being the air port that casts a composite monolithic shape by cavity type copper twyere body and collar process, cavity type copper twyere body is a cylindrical shape, anterior diameter is big, the rear portion diameter is little, and having one in the body of air port, to be cone shape hole be the air port, and its cone angle is that 4 degree angles have two symmetric holes at leading section, be coolant intake and cooling water outlet, there are two symmetric boss at the rear portion; The collar is the circular ring of being made by silicon carbide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92235984 CN2138127Y (en) | 1992-11-05 | 1992-11-05 | Hollow circular tuyere of blast furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92235984 CN2138127Y (en) | 1992-11-05 | 1992-11-05 | Hollow circular tuyere of blast furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2138127Y true CN2138127Y (en) | 1993-07-14 |
Family
ID=33777644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92235984 Expired - Fee Related CN2138127Y (en) | 1992-11-05 | 1992-11-05 | Hollow circular tuyere of blast furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2138127Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234696A (en) * | 2010-04-21 | 2011-11-09 | 重庆钢铁(集团)有限责任公司 | Method of increasing air quantity when blast furnace blows in without damping down |
-
1992
- 1992-11-05 CN CN 92235984 patent/CN2138127Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234696A (en) * | 2010-04-21 | 2011-11-09 | 重庆钢铁(集团)有限责任公司 | Method of increasing air quantity when blast furnace blows in without damping down |
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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 |