US1994115A - Tuyere for shaft furnaces - Google Patents
Tuyere for shaft furnaces Download PDFInfo
- Publication number
- US1994115A US1994115A US678954A US67895433A US1994115A US 1994115 A US1994115 A US 1994115A US 678954 A US678954 A US 678954A US 67895433 A US67895433 A US 67895433A US 1994115 A US1994115 A US 1994115A
- Authority
- US
- United States
- Prior art keywords
- tuyere
- shaft furnaces
- nozzle
- furnaces
- blast
- 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
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
Definitions
- the invention proposes a tuyere for shaft furnaces, in which the opening of the nozzle is displaced relative to the longitudinal axis and the direction of the blast can be varied owing to the fact that the nozzle is rotatable about its axis.
- the advantages afforded by the invention are that during prolonged stopping of furnaces due to reductions in output obstructions which are frequently formed to the left and right of the tuyere as well as above it and which have to be removed by melting to insure satisfactory operation of the tuyeres can be eliminated by melting by means of the new tuyre according to requirements.
- the invention makes it possible to deflectthe blast from the tap hole by turning the tuyeres to the right or left and thus to protect it against damage. Moreover, merely by turning the tuyere and thus deflecting the blast upwardly narrowing of the bosh is elim- 5 inated.
- 1 is a tuyere of standard type which in its upper half possesses a wedge-like insertion 2 capable of being covered by the cooling water of the tuyere.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Nozzles (AREA)
Description
12, 1935. J. STOECKER 1,994,115
TUYERE FOR SHAFT FURNACES Filed July 5, 1933 Patented Mar. 12, 1935 map STATES PATENT OFFICE TUYERE ron SHAFT FURNACES seldorf, Germany Application July 3, 1933, Serial No. 678,954 In Germany July I, 1932 1 Claim.
This invention relates to a tuyre for shaft furnaces.
It is known to employ for the regulation of the nozzle section in the blast pipes of shaft furnaces 5 rotatable nozzles which, for this purpose, have an oval or star-shaped outlet opening. It is further known to use nozzles having an orifice displaced relative to the longitudinal axis.
The invention proposes a tuyere for shaft furnaces, in which the opening of the nozzle is displaced relative to the longitudinal axis and the direction of the blast can be varied owing to the fact that the nozzle is rotatable about its axis.
The advantages afforded by the invention are that during prolonged stopping of furnaces due to reductions in output obstructions which are frequently formed to the left and right of the tuyere as well as above it and which have to be removed by melting to insure satisfactory operation of the tuyeres can be eliminated by melting by means of the new tuyre according to requirements.
Furthermore, in order to prevent the breaking out of tap holes, especially in case of larger outputs, it is necessary to plug one or sometimes two of the tuyeres disposed laterally to the tap hole, which has an unfavorable effect upon the working of the furnace. The invention makes it possible to deflectthe blast from the tap hole by turning the tuyeres to the right or left and thus to protect it against damage. Moreover, merely by turning the tuyere and thus deflecting the blast upwardly narrowing of the bosh is elim- 5 inated.
By way of example, the invention is illustrated in the accompanying drawing, in which Figures 1, 2 and 3 are views of different embodiments of the invention. 0
Referring to Figs. 1 and 2, 1 is a tuyere of standard type which in its upper half possesses a wedge-like insertion 2 capable of being covered by the cooling water of the tuyere.
In the constructional form shown in Fig. 3 the 15 lower inner nozzle plate 3 is bent so as to impart to the tuyere a form resembling an elbow part.
I claim:--
A tuyere for shaft furnaces, especially blast furnaces, consisting substantially of a double- 20 walled nozzle the center of the opening of which is displaced relative to the longitudinal axis of the nozzle while the nozzle itself is rotatable about its axis so that the blast direction may be varied, the inner wall of the nozzle projecting 25 inwardly at the opening in a wedge-like shape.
JULIUS STOECKER.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1994115X | 1932-07-07 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1994115A true US1994115A (en) | 1935-03-12 |
Family
ID=7920116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US678954A Expired - Lifetime US1994115A (en) | 1932-07-07 | 1933-07-03 | Tuyere for shaft furnaces |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1994115A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2781190A (en) * | 1951-03-09 | 1957-02-12 | United States Steel Corp | Tuyere |
| US3350084A (en) * | 1965-01-26 | 1967-10-31 | Abex Corp | Tuyere with divided passageway |
| US3745943A (en) * | 1972-03-31 | 1973-07-17 | Bethlehem Steel Corp | Baffle nose tuyere |
| WO2022058772A1 (en) * | 2020-09-15 | 2022-03-24 | Arcelormittal | Device to inject a reducing gas into a shaft furnace |
-
1933
- 1933-07-03 US US678954A patent/US1994115A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2781190A (en) * | 1951-03-09 | 1957-02-12 | United States Steel Corp | Tuyere |
| US3350084A (en) * | 1965-01-26 | 1967-10-31 | Abex Corp | Tuyere with divided passageway |
| US3745943A (en) * | 1972-03-31 | 1973-07-17 | Bethlehem Steel Corp | Baffle nose tuyere |
| WO2022058772A1 (en) * | 2020-09-15 | 2022-03-24 | Arcelormittal | Device to inject a reducing gas into a shaft furnace |
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