FR2154324A1 - Controlling blast flow rate - by injecting secondary gas at tuyere outlet end - Google Patents
Controlling blast flow rate - by injecting secondary gas at tuyere outlet endInfo
- Publication number
- FR2154324A1 FR2154324A1 FR7135081A FR7135081A FR2154324A1 FR 2154324 A1 FR2154324 A1 FR 2154324A1 FR 7135081 A FR7135081 A FR 7135081A FR 7135081 A FR7135081 A FR 7135081A FR 2154324 A1 FR2154324 A1 FR 2154324A1
- Authority
- FR
- France
- Prior art keywords
- flow rate
- tuyere
- secondary gas
- outlet end
- blast flow
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
- F15D1/08—Influencing flow of fluids of jets leaving an orifice
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/001—Injecting additional fuel or reducing agents
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacture Of Iron (AREA)
Abstract
In regulating the flow conditions of >=1 primary gas at the outlet section of a tuyere, >=1 secondary gas is injected, pref. perpendicular to the direction of the primary gas, close to the downstream end of the tuyere. The arrangement ensures that the flow rate of the blast at the tuyere outlet is held at a given value whatever amt. of fuel may be added to the blast.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7135081A FR2154324A1 (en) | 1971-09-29 | 1971-09-29 | Controlling blast flow rate - by injecting secondary gas at tuyere outlet end |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7135081A FR2154324A1 (en) | 1971-09-29 | 1971-09-29 | Controlling blast flow rate - by injecting secondary gas at tuyere outlet end |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2154324A1 true FR2154324A1 (en) | 1973-05-11 |
FR2154324B1 FR2154324B1 (en) | 1975-07-18 |
Family
ID=9083665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7135081A Granted FR2154324A1 (en) | 1971-09-29 | 1971-09-29 | Controlling blast flow rate - by injecting secondary gas at tuyere outlet end |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2154324A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5360202A (en) * | 1991-07-10 | 1994-11-01 | Chugai Ro Co., Ltd. | Blackening Treating furnace for treating stainless steel strip surface |
EP2064120A1 (en) * | 2006-08-24 | 2009-06-03 | Jet Stick Limited | Fluid amplifier |
-
1971
- 1971-09-29 FR FR7135081A patent/FR2154324A1/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5360202A (en) * | 1991-07-10 | 1994-11-01 | Chugai Ro Co., Ltd. | Blackening Treating furnace for treating stainless steel strip surface |
EP2064120A1 (en) * | 2006-08-24 | 2009-06-03 | Jet Stick Limited | Fluid amplifier |
EP2064120A4 (en) * | 2006-08-24 | 2011-09-21 | Jet Stick Ltd | Fluid amplifier |
Also Published As
Publication number | Publication date |
---|---|
FR2154324B1 (en) | 1975-07-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |