US3541604A - Gas insufflating means for a molten metal refining container - Google Patents
Gas insufflating means for a molten metal refining container Download PDFInfo
- Publication number
- US3541604A US3541604A US699487A US3541604DA US3541604A US 3541604 A US3541604 A US 3541604A US 699487 A US699487 A US 699487A US 3541604D A US3541604D A US 3541604DA US 3541604 A US3541604 A US 3541604A
- Authority
- US
- United States
- Prior art keywords
- gas
- molten metal
- container
- porous refractory
- plug member
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/002—Treatment with gases
- B22D1/005—Injection assemblies therefor
Definitions
- This invention relates generally to molten metal containers having porous refractory plugs and more particulary to refining gas inlet insufliating devices for molten metal containers.
- an insuiiiating device wherein a gas-permeable porous firebrick is placed in the side wall of a molten metal container or in the bottom of said container so that an agitating gas or reaction gas may be blown in through said rebrick.
- the above mentioned porous refractory has many gas-permeable pores passing from lone surface to the other, and thus has a property that, in case acrack occurs, it will be likely to quickly spread in the direction of the pore, that is, from the inside to the outside of the container. Therefore, the molten metal will liow along the crack until it reaches the outside shell plate of the container and makes a hole in said outside shell plate.
- An object of the present invention is to provide a molten metal container having an insuiating device in the form of a porous refractory plug which will prevent cracks from occurring over the entire lining layer as is mentioned above so that the molten metal will not leak out through the porous lining part.
- Another object of the present invention is to provide a gas inlet plugging device in which a gas can be jetted into the molten metal with a sufficient jetting force and the safety with respect to the leakage of the molten metal is high.
- the present invention provides an insufiiating a gas inlet part of a container body having a gas-permeable porous refractory and a supporting brick having one or more gaspermeable pores, said supporting brick being on the back of said porous refractory in the direction of the thickness of the wall of the molten metal container.
- FIG. 1 is a vertically sectioned view of a plugging device of the present invention.
- FIG. 2 is a sectional view on line II--II in FIG. 1.
- FIG. 1 showing a vertically sectional View of a gas inlet insuiating device in a molten metal container of the present invention
- a porous refractory plug member 1 ⁇ having through pores is fitted in a gas inlet of a container lining layer 4 of molded firebrick and has one end surface directly in contact with said molten metal 12 on the wall surface or in the bottom of said molten metal container.
- a refractory supporting brick 2 having gas pores 3 supports said porous refractory plug member 1 on the other end surface from that which is in contact with the molten metal 12.
- This supporting brick 2 is provided with the above mentioned gas pores 3 for feeding an amount of gas required to be blown into the container to the surface of the porous refractory 1.
- the size and number of said gas pores 3 are selected depending on the size of the porous refractory plug member 1. That is to say, when the area of said other end of the porous refractory plug member 1 is large, it will be preferable to uniformly distribute the gas pores 3 over the entire area of the supporting brick 2 and therefore the size of the gas-permeable pores 3 should be made as small as possible to improve the strength of the supporting brick 2.
- the gas pores 3 can be concentrated in the central part of the supporting brick 2. If only one gas pore 3 is to be provided or the gas pores 3 are to be concentrated in the central part, it is necessary to provide ribs 5 on the surface of either the supporting brick 2 or the porous refractory plug member 1 so that inlet gas distributing space 6 will be formed. Such space can have any convenient form.
- An outside shell plate 7 is provided on the molten metal container.
- a protective plate 9 is fixed to the outside of the supporting brick 2 with a packing 8 between the plates 9 and 7.
- the outside of brick 2 has a distributing space 10 for the inlet gas.
- the protective plate 9 is provided with a gas inlet pipe 11 adapted to be connected to a source of gas (not illustrated).
- porous refractory plug member 1 and supporting brick 2 need not be special ones but may any known ones as long as they fit tightly in the gas inlet hole as shown in FIG. l.
- the porous refractory plug member 1 can be made relatively thin. Therefore, the resistance to the passage of the gas to be fed into the container can be made so low that the gas can be ietted into the molten metal with a sufficient jetting force, additives can be uniformly mixed and rening agents can be made to quickly react.
- the present gas inlet insulating device is in two layers, there are advantages that, even if a crack occurs in the porous refractory plug member 1, it will not spread to the supporting brick 2 and that there fore, even if the molten metal 12 ows into the porous refractory plug member, it will be stopped by the supporting brick 2.
- a gas insulating device for a molten metal refining container having a gas inlet hole with an inner and opening into the container and an outlet end opening out of the container, which comprises a gas-permeable porous refractory plug member adapted to fit tightly into the inner part of the gas inlet hole with one end surface di- 20 rectly in contact with the molten metal in the molten metal container, and a supporting brick having at least one gas pore therein and adapted to t tightly in the outer part of said gas inlet hole and against the other end surface of said porous refractory plug member for support- 25 ing said plug member and plugging the outer part of the gas inlet hole.
- a device as claimed in claim 1 in which said supporting brick has a plurality of gas pores in the central part of the surface opposed to the porous refractory plug member and further has a plurality of ribs and inlet gas grooves on the peripheral part of said surface, the ribs contacting the plug member.
- a device as claimed in claim 1 in which said supporting brick has a gas distributing recess on the surface thereof remote from the surface supporting said plug member.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Furnace Charging Or Discharging (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP847967 | 1967-02-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3541604A true US3541604A (en) | 1970-11-17 |
Family
ID=11694231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US699487A Expired - Lifetime US3541604A (en) | 1967-02-01 | 1968-01-22 | Gas insufflating means for a molten metal refining container |
Country Status (4)
Country | Link |
---|---|
US (1) | US3541604A (enrdf_load_stackoverflow) |
DE (1) | DE1608036A1 (enrdf_load_stackoverflow) |
FR (1) | FR1555947A (enrdf_load_stackoverflow) |
GB (1) | GB1210314A (enrdf_load_stackoverflow) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4053147A (en) * | 1975-04-24 | 1977-10-11 | Swiss Aluminium Ltd. | Device for introduction of gases into reaction vessels containing fluids |
US4243210A (en) * | 1978-06-05 | 1981-01-06 | Aikoh Co. Ltd. | Tundish for the continuous casting of steel |
CN106392047A (zh) * | 2016-08-31 | 2017-02-15 | 长兴科特碳化硅有限公司 | 复合式狭缝透气砖及其制备方法 |
CN109070198A (zh) * | 2016-05-03 | 2018-12-21 | 里弗雷克特里知识产权两合公司 | 气体净化装置 |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2518240A1 (fr) * | 1981-12-16 | 1983-06-17 | Siderurgie Fse Inst Rech | Element refractaire permeable pour l'introduction d'un fluide de brassage dans un bain de metal en fusion |
NO156014C (no) * | 1984-07-04 | 1987-07-08 | Tinfos Jernverk As | Anordning for injisering av gasser i smeltede metaller og mineraler. |
AT383617B (de) * | 1984-09-18 | 1987-07-27 | Oesterr Amerikan Magnesit | Gasspuelstein fuer metallurgische oefen und gefaesse |
DE3523171C1 (de) * | 1985-06-28 | 1986-10-30 | Didier-Werke Ag, 6200 Wiesbaden | Gasspueleinrichtung |
DE3633516A1 (de) * | 1985-12-04 | 1987-06-11 | Didier Werke Ag | Gasspueleinrichtung fuer schmelzenbehaelter |
DE3623609C1 (de) * | 1986-07-12 | 1988-01-21 | Didier Werke Ag | Gasspueleinrichtung |
DE3833504A1 (de) * | 1988-10-01 | 1990-04-05 | Didier Werke Ag | Gasspueleinrichtung |
DE3833503A1 (de) * | 1988-10-01 | 1990-04-05 | Didier Werke Ag | Gasspuelstein |
DE3833506A1 (de) * | 1988-10-01 | 1990-04-05 | Didier Werke Ag | Vorrichtung zum aufspritzen einer ausbesserungsmasse auf einen lochstein |
DE3833502A1 (de) * | 1988-10-01 | 1990-04-05 | Didier Werke Ag | Gasspuelstein |
FR2644566B1 (fr) * | 1989-03-15 | 1991-06-21 | Air Liquide | Four electrique a arc et procede de fusion de ferrailles |
DE102008015323A1 (de) * | 2008-03-20 | 2009-10-01 | Raadts, Monika | Verteilervorrichtung für Strangguss |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB112980A (en) * | 1917-01-30 | 1918-01-30 | Willans And Robinson Ltd | Improvements in connection with Supplying Compressed Air to the Cylinders of Internal Combustion Engines. |
GB684048A (en) * | 1949-06-22 | 1952-12-10 | Mini Of Mines And Technical Su | The gas flushing of liquid masses |
US2871008A (en) * | 1950-11-02 | 1959-01-27 | Air Liquide | Apparatus for gas flushing of molten metal |
CA577247A (en) * | 1959-06-09 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Proced Es Georges Claude | Apparatus for gas-flushing molten metals | |
US2947527A (en) * | 1957-09-09 | 1960-08-02 | Air Liquide | Device for insufflating gas into a mass of molten metal |
US3373986A (en) * | 1964-06-18 | 1968-03-19 | Air Liquide | Metallurgical vessel with safety device |
-
1968
- 1968-01-22 US US699487A patent/US3541604A/en not_active Expired - Lifetime
- 1968-01-23 GB GB3498/68A patent/GB1210314A/en not_active Expired
- 1968-01-29 DE DE19681608036 patent/DE1608036A1/de active Pending
- 1968-01-31 FR FR1555947D patent/FR1555947A/fr not_active Expired
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA577247A (en) * | 1959-06-09 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Proced Es Georges Claude | Apparatus for gas-flushing molten metals | |
GB112980A (en) * | 1917-01-30 | 1918-01-30 | Willans And Robinson Ltd | Improvements in connection with Supplying Compressed Air to the Cylinders of Internal Combustion Engines. |
GB684048A (en) * | 1949-06-22 | 1952-12-10 | Mini Of Mines And Technical Su | The gas flushing of liquid masses |
US2871008A (en) * | 1950-11-02 | 1959-01-27 | Air Liquide | Apparatus for gas flushing of molten metal |
US2947527A (en) * | 1957-09-09 | 1960-08-02 | Air Liquide | Device for insufflating gas into a mass of molten metal |
US3373986A (en) * | 1964-06-18 | 1968-03-19 | Air Liquide | Metallurgical vessel with safety device |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4053147A (en) * | 1975-04-24 | 1977-10-11 | Swiss Aluminium Ltd. | Device for introduction of gases into reaction vessels containing fluids |
US4243210A (en) * | 1978-06-05 | 1981-01-06 | Aikoh Co. Ltd. | Tundish for the continuous casting of steel |
CN109070198A (zh) * | 2016-05-03 | 2018-12-21 | 里弗雷克特里知识产权两合公司 | 气体净化装置 |
CN109070198B (zh) * | 2016-05-03 | 2020-04-28 | 里弗雷克特里知识产权两合公司 | 气体净化装置 |
CN106392047A (zh) * | 2016-08-31 | 2017-02-15 | 长兴科特碳化硅有限公司 | 复合式狭缝透气砖及其制备方法 |
Also Published As
Publication number | Publication date |
---|---|
DE1608036A1 (de) | 1970-12-23 |
GB1210314A (en) | 1970-10-28 |
FR1555947A (enrdf_load_stackoverflow) | 1969-01-31 |
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