US3743264A - Steel conversion apparatus - Google Patents

Steel conversion apparatus Download PDF

Info

Publication number
US3743264A
US3743264A US3743264DA US3743264A US 3743264 A US3743264 A US 3743264A US 3743264D A US3743264D A US 3743264DA US 3743264 A US3743264 A US 3743264A
Authority
US
United States
Prior art keywords
vessel
access opening
opening
exhaust means
enclosure
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
Application number
Inventor
A Dortenzo
J Baum
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pennsylvania Engineering Corp
BAUM VERFAHRENSTECHNIK
Original Assignee
Pennsylvania Engineering Corp
BAUM VERFAHRENSTECHNIK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pennsylvania Engineering Corp, BAUM VERFAHRENSTECHNIK filed Critical Pennsylvania Engineering Corp
Priority to US16592071A priority Critical
Application granted granted Critical
Publication of US3743264A publication Critical patent/US3743264A/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Images

Classifications

    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28Manufacture of steel in the converter
    • C21C5/38Removal of waste gases or dust
    • C21C5/40Offtakes or separating apparatus for converter waste gases or dust

Abstract

An open topped vessel for converting molten ferrous metal to steel is pivotable about a horizontal axis and has bottom tuyeres which permit the blowing of oxygen or other gases upwardly through the molten metal. An enclosure at least partially surrounds the vessel and co-operates with a smoke hood to prevent the escape of pollutants when the vessel is in its vertical position. Suction means is coupled to the hood for creating an in-draft at a closable access opening to prevent the release of pollutants when the vessel is pivoted to place its open top adjacent the access opening for receiving a charge.

Description

United States Patent [1 1 Baum et al.' July 3, 1973 [54] T E CONVERSION APPARATUS 3,205,810 9/l965 Rosenak zoo 3s ,014, 5 l l96l B a V [75] Inventors: Jeorg P. Baum, Essen, Germany; 3 2 5 2, ussard a] 266] gr Dortenzo Plttsburgh Primary Examiner-Gerald A. Dost Attorney-Wiviott & Hohenfeld't [73] Assignees: Pennsylvania Engineering Company,

Pittsburgh, Pa.; Verfahrenstechnik [57] ABSTRACT Essen Germany An open topped vessel for converting molten ferrous [22] Filed: July 26, 1971 metal to steel is pivotable about a horizontal axis and i has bottom tuyeres which permit the blowing of oxygen 2] App]. No.. 165,920 or other gases upwardly through the molten metal. An enclosure at least partially surrounds the vessel and co [52] U.S. Cl 266/36 P, 266/15 operates with a smoke hood to prevent the escape of [51] Int. Cl. C21c 5/38 pollutants when the vessel is in its vertical position. [58] Field of Search 266/13, 34 V, 35, Suction means is coupled to the: hood for creating an 2615/36 P, 15 in-draft at a closable access opening to prevent the release of pollutantsv when the vessel is pivoted to place [56] ReferencesCited its open top adjacent the access opening for receiving UNITED STATES PATENTS a charge- 2,803,450 8/1957 McFeaters 266/35 16 Claims, 2 Drawing Figures Patented July 3, 1973 3,743,264

INViENTORS ALEXANDER T. DORTENZO JEORG P BAUM ATTOR NEYS STEEL CONVERSION APPARATUS BACKGROUND OF THE INVENTION The objectives of modern steel plant designs are to reduce operating costs, capital investment and pollution that is incidental to the process. Considerable progress has been made in improving efficiency and reducing causes of pollution by use of various conversion vessels. These include the basic oxygen converter, the argon-oxygen converter and the bottom blown converter. Each of these converters generally comprises a vessel which is open at its upper end. Such vessels are normally oriented vertically but are rotatable about a horizontal axis so that they may be tilted for charging hot metal and scrap through an open upper end and for teeming or deslagging, temperature measurement and sampling.

Certain prior art converter systems employ a smoke hood located directly above the open upper end of the vessel when the latter was in its upright position. However, when such vessels were tilted, their open upper ends were displaced from the smoke hood so that the latter can not effectively prevent pollutants from being discharged into the surrounding atmosphere.

in basic oxygen converters, the oxygen is introduced into the vessel by means of a lance extending downwardly through the open upper end. In the argonoxygen converter vessel and the bottom blown converters the oxygen or other gases are introduced through tuyeres located below the level of molten metal. When the basic oxygen converters were tilted to receive hot metal-and scrap, for example, the oxygen lance was normally off. This was also possible in argon-oxygen converters where the tuyeres are located in the sides of the vessels so that they would be free of metal when the vessel is tilted. In the bottom blown converter, however, where the .tuyeres are located in the vessels bottom, gas flow must be maintained at all times to prevent the backup of hot metal through the tuyeres and into the gas system. This further complicates the control of pollutants when the bottom blown vessel is in its tilted position.

SUMMARY OF THE INVENTION A general object of the invention is to provide a new and improved pollution control apparatus for steel conversion vessels.

Another object of the invention is to provide apparatus for preventing the discharge of pollutants from steel conversion vessels when the latter are in each of their various alternate positions.

A further object of the invention is to provide apparatus for preventing the discharge of pollutants into the surrounding atmosphere from a steel conversion vessel when the latter is being charged, sampled, deslagged or during teeming.

These and other objects and advantages of the present invention will become more apparent from the detailed description of the preferred embodiment taken with the accompanying drawings. In general terms, the invention comprises a converter vessel having an open upper end, an enclosure substantially surrounding the vessel and having an access opening to permit hot metal or scrap to be charged into the vessel, and a gas withdrawal system for creating an indrat't through the access opening to prevent the outflow of polluting gases from the enclosure.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front elevational view, partly in section, of a converter vessel and pollution control system according to the present invention; and

FIG. 2 shows an alternate embodiment of the apparatus of FIG. 1 with the converter vessel in an alternate position.

DESCRIPTION OF THE PREFERRED EMBODIMENT The invention will be illustrated and discussed with respect to a bottom blown conversion vessel 10 shown in FIGS. 1 and 2 although those skilled in the art will appreciate that it has application as well to other types of converters such as basic oxygen and argon-oxygen systems.

The vessel 10 is open at its upper end and includes a metallic shell 11 and a refractory lining 12. A plurality of tuyeres 13 are formed through the lower end of the vessel to permit the injection of gasesby means which will be described more fully below. As those skilled in the art will appreciate, conversion vessels of this type are generally supported in a conventional manner on a trunnion ring 14 which has a trunnion 15 extending from each of its opposite sides. The trunnions 15 are suitably supported in a well-known manner on bearing structures (not shown)-and are coupled to a suitable drive mechanism (not shown) for tilting vessel 10 to each of a plurality of positions as may be required during a process cycle.

Referring now specifically to the embodiment of FIG. 1, the vessel 10 is shown to be disposed within a metallic enclosure 16 having a top wall 17 disposed above the open upper end of vessel 10 and side walls 18 extending downwardly from the top wall 17 to substantially ground level. While the enclosure 16 is shown in FIG. 1 to be generally rectangular in horizontal crosssection and the cover 17 is shown to be generally frus' to-pyramidal, it will be appreciated that the enclosure portions may take any convenient shape.

A top opening 20 is formed in cover l? for receiving a smoke hood 21 which normally engages the open upper end of vessel 12 when the latter is in its vertical position shown in FIG. 1. Smoke hood 21 may include a conical collar section 22 for engaging the upper end of the vessel 10 and a generally cylindrical section 24 which extends upwardly through opening 20. A smaller cylindrical section 25 extends upwardly from section 24 for telescoping engagement withthe lower end of a discharge pipe 26. The smoke hood assembly 21 is sup ported from a fixed member 28 by threaded shafts 29 which engage suitable fixed nut members (not shown) on hood 21. A drive assembly (not shown) rotates threaded shafts 29 so that the hood assembly 21 may be moved between its vessel engaging position shown in FIG. 1 and its elevated position shown in FIG. 2. It will be appreciated that section 24 and margins of opening 20 and telescoping members 25 and 26 will be constructed and arranged to remain in a substantially sealed relation when the smoke hood is in its various positions.

A charge opening 30 is formed at one side of top wall 17 and an access door 31 is suitably mounted thereon for sliding movement between open and closed positions relative to opening 30. In addition, one or more access openings 32 and 33 may be formed in the lower end of side walls 18 to permit movement of a transfer car 34 into and out of enclosure 16 on rails 35. The transfer car may be employed to position a slag pot 36 or a teeming ladle 37 beneath the vessel as may be required. Doors 38 and 39 may be suitably mounted on walls 18 for movement between open and closed positions relative to openings 32 and 33 respectively when the position of transfer car 34 permits.

As indicated above, the conversion vessel illustrated in FIGS. 1 and 2 is of the bottom blown type having tuyeres 13 which extend through the lower end of vessel 10 and through which suitable gas pipes 40 extend. The other end of pipes 40 engage a manifold 42 disposed in a chamber 43 mounted on the bottom of vessel 10. Manifold 42 is coupled by pipe 44 to receive gases or other material which are to be injected into the hot metal vessel 10. For a more complete description of the process which may be employed in vessel 10, reference is made to co-pending application Ser. No. 163,591, filed July 19, 1971, and which is assigned to one of the assigness of the instant invention.

An auxiliary suction system 48 may be coupled to an opening 49 formed in the top wall 17 of enclosure 16 at a point above access opening 30. An auxiliary hood 50 is secured to top wall 17 in surrounding relation to opening 49 and is coupled by a conduit 51 to the suction system (not shown).

FIG. 1 illustrates the normal operating position of the vessel 10. Here the vessel is shown to be disposed generally vertically with the smoke hood assembly 21 in position over the vessels open upper end. Treatment gases and other materials are injected through the tuyeres beneaththe molten metal which may be disposed in the vessel 10 up to height 53. As those skilled in the art will appreciate, it becomes necessary from time to time during the treatment cycle to rotate the vessel 10 on thetrunnions 50. Toward this end, the smoke hood assembly 21 is first elevated from its position shown in FIG. 1 to that shown in FIG. 2 wherein the collar 21 is elevated relative to the upper end of vessel 10. The engagement between the cylindrical section 24 and the opening 20 maintains the latter in a substantially closed condition. When the assembly 21 has been fully elevated, a shoulder 55 formed at the junction between the portion 24 and collar 22 will abut the lower surface of the top wall 17. The assembly 21 will therefore remain effective to withdraw pollutants without substantial leakage through opening 20. If, for example, the vessel 10 is tilted for the purpose of sampling the hot metal or charging the vessel 10 with additional hot metal or scrap, the vessel is pivoted in a counterclockwise direction until its open upper end is adjacent access opening 30. The door 31 may then be opened and a charging chute 56, for example, inserted into proximity with the vessel opening. The charging of hot metal or scrap normally causes a substantial quantity of gaseous and particulate pollutants to be generated within the vessel. This condition is aggravated by the fact that the gas supply to vessel 10 must continue while the vessel is tilted so as to prevent a back flow of molten metal into the tuyeres l3 and the gas supply systern.

The auxiliary suction system 48 which is positioned above the access opening 30 is operative to cause a slight negative pressure within the enclosure 16 at the opening 30 to cause an inflow of outside air. This prevents the egress of the gaseous and particulate pollutants from enclosure 16 but instead causes them to flow into the auxiliary suction system 48 and the main suction system 21. It has been found in actual practice that the main and auxiliary suction systems must function to create a flow velocity of from 1,000 to 2,000 feet per minute at the opening 30 to prevent the escape of pollutants from the enclosure 16. It is also preferable that hood 50 of the auxiliary system be as close to the opening 30 as possible to maximize its effectiveness.

It may also be necessary, from time to time, to discharge slag from the vessel 10 into the slag pct 36 to pour the hot metal into the ladle 37. This is accomplished by first elevating the smoke hood assembly 21 in the manner indicated above and then rotating the vessel clockwise for discharging slag or hot metal into the appropriate ones of the containers 36 or 37 and through a pouring a spout 57. During this operation, the access door 31 remains in its closed position. Here again, the main and auxiliary exhaust systems 21 and 48 are effective to prevent the discharge of pollutants from enclosure 16.

FIG. 2 also illustrates an alternate embodiment of the invention wherein the enclosure 16' terminates at a point above the floor level. However, because substantially all of the gaseous and particulate pollutants tend to rise as a result of the intense heat generated in the vessel 10, substantially none escapes around the lower edge of the enclosure 16. On the contrary, a chimney effect is created wherein outside air is drawn below the lower marginal edge of enclosure 16 for discharge through the exhaust system.

The pollutants removed from enclosures 16 and 16 through the suction systems according to the invention are treated in conventional gas scrubbing and cleaning apparatus which need not be described here.

It will be appreciated that the pollution control assembly according to the present invention prevents the discharge of particulate and gaseous pollutants from the vessel 10 both when it is in its upright operative position and when it is tilted such as for charging, sampling, deslagging, teeming and the like. Also, while the invention has been described with respect to one type of converter vessel, it will be appreciated that it may be applicable to other types of converting vessels as well. Further, while only a single configuration has been illustrated with respect to the enclosures 16 and 16 they may take any convenient shape without deviating from the inventive concept. Accordingly, it is not iritended that the invention be limited to the foregoing description, but only by the scope of the appended claims.

We claim:

1. A converter vessel having a metal receiving opening formed adjacent an upper end thereof,

an enclosure substantially surrounding said vessel and having means defining an upper wall portion disposed above said vessel and a side wall portion extending generally downwardly from said upper" wall portion, an access opening formed in one of said wall portions,

said upper and side wall portions being disposed in a closely surrounding relation to said vessel,

said vessel being adapted to be tilted about a substantially horizontal axis to position said metal receiving opening adjacent said access opening so that said vessel may be charged,

and exhaust means including means extendingthrough said upper wall portion and engageable with said metal receiving opening when said vessel is in an untilted position for withdrawing pollutants generated in said vessel, said exhaust means also being operative to create an in-draft at said access opening to prevent the escape of said pollutants when said vessel is tilted in its metal receiving position.

2. The invention set forth in claim 1 wherein said enclosure is open at its lower end and terminates at substantially the lower end of said vessel.

3. The invention set forth in claim 1 wherein said enclosure is substantially closed at its lower end and extends a substantial distance below said vessel.

4. The invention set forth in claim 1 wherein said metal receiving opening is normally disposed in a first position spaced from access opening, said exhaust means including first exhaust means disposed above said first position.

5. The invention set forth in claim 1 and including closure means for normally closing said access opening.

6. A converter vessel having a metal receiving opening,

an enclosure substantially surrounding said vessel and having an access opening formed therein, said metal receiving opening normally being disposed in a first position spaced from said access opening,

said vessel being adapted to be tilted about a substantially horizontal axis to position said metal receiving opening adjacent said access opening so that said vessel may be charged,

and exhaust means connected to said enclosure for withdrawing pollutants generated in said vessel and for creating an in-draft at said access opening to prevent the escape of said pollutants when said vessel is tilted in its metal receiving position,

said exhaust means including first exhaust means disposed above said first position and second exhaust means disposed above said access opening.

7. The invention set forth in claim 4 wherein said first exhaust means includes a hood means which is movable into and out of engagement with said vessel for surrounding said metal receiving opening.

8. The invention set forth in claim 7 wherein said exhaust means includes a second exhaust means disposed above said access opening.

9. The invention set forth in claim 8 and including door means for normally closing said access opening.

10. The invention set forth in claim 8 wherein a first exhaust opening is formed in said enclosure for receiving said first exhaust means, said first exhaust means substantially closing said opening when in each of its engagement and out of engagement positions relative to said opening. V

111. The invention set forth in claim 10 wherein said enclosure includes a second exhaust opening formed therein above said access opening, said second exhaust means including means surrounding said second exhaust opening.

12. The invention set forth in claim 11 wherein said enclosure is open at its lower end and terminates at substantially the lower end of said vessel.

13. The invention set forth in claim 11 wherein said enclosure is substantially closed at its lower end and extends a substantial distance below said vessel.

14. A method of controlling the discharge of pollutants from an open topped vessel containing hot metal wherein gases are introduced into said metal through tuyeres located in the lower end of said vessel, the steps of,

surrounding at least the top and sides of said vessel with an enclosure,

positioning a first exhaust means in a surrounding relation to the open top of said vessel when the latter is in a substantially vertical position,

raising said first exhaust means away from said vessel,

tilting said vessel to position its open top adjacent an access opening in said enclosure and displaced from said first exhaust means,

creating an in-draft through said access opening to prevent the discharge of pollutants, and

charging said vessel through said access opening,

and collecting at least a portion of said pollutants by second exhaust means located over said access opening. 15. The method set forth inclaim l4 and including the steps of returning said vessel to its vertical position and closing said access opening. I 16. A converter vessel having a metal receiving opening,

an enclosure substantially surrounding said vessel and having means defining a roof portion disposed above said vessel'and a side wall portion extending generally'downwardly from said roof portion,

means defining an access opening formed in one of said wall portions,

means mounted on said enclosure for selectively opening and closing said access opening,

said vessel being adapted to be tilted about a substantially horizontal axis to position said metal receiving opening adjacent said access opening so that said vessel may be charged,

first exhaust means extending through said roof portion for engaging said metal receiving opening when said vessel is in an untillted position and second exhaust means disposed above said access opening, said first and second exhaust means being operative to prevent the escape of pollutants when said vessel is tilted in its metal receiving position.

i i t i i"

Claims (16)

1. A converter vessel having a metal receiving opening formed adjacent an upper end thereof, an enclosure substantially surrounding said vessel and having means defining an upper wall portion disposed above said vessel and a side wall portion extending generally downwardly from said upper wall portion, an access opening formed in one of said wall portions, said upper and side wall portions being disposed in a closely surrounding relation to said vessel, said vessel being adapted to be tilted about a substantially horizontal axis to position said metal receiving opening adjacent said access opening so that said vessel may be charged, and exhaust means including means extending through said upper wall portion and engageable with said metal receiving opening when said vessel is in an untilted position for withdrawing pollutants generated in said vessel, said exhaust means also being operative to create an in-draft at said access opening to prevent the escape of said pollutants when said vessel is tilted in its metal receiving position.
2. The invention set forth in claim 1 wherein said enclosure is open at its lower end and terminates at substantially the lower end of said vessel.
3. The invention set forth in claim 1 wherein said enclosure is substantially closed at its lower end and extends a substantial distance below said vessel.
4. The invention set forth in claim 1 wherein said metal receiving opening is normally disposed in a first position spaced from access opening, said exhaust means including first exhaust means disposed above said first position.
5. The invention set forth in claim 1 and including closure means for normally closing said access opening.
6. A converter vessel having a metal receiving opening, an enclosure substantially surrounding said vessel and having an access opening formed therein, said metal receiving opening normally being disposed in a first position spaced from said access opening, said vessel being adapted to be tilted about a substantially horizontal axis to position said metal receiving opening adjacent said aCcess opening so that said vessel may be charged, and exhaust means connected to said enclosure for withdrawing pollutants generated in said vessel and for creating an in-draft at said access opening to prevent the escape of said pollutants when said vessel is tilted in its metal receiving position, said exhaust means including first exhaust means disposed above said first position and second exhaust means disposed above said access opening.
7. The invention set forth in claim 4 wherein said first exhaust means includes a hood means which is movable into and out of engagement with said vessel for surrounding said metal receiving opening.
8. The invention set forth in claim 7 wherein said exhaust means includes a second exhaust means disposed above said access opening.
9. The invention set forth in claim 8 and including door means for normally closing said access opening.
10. The invention set forth in claim 8 wherein a first exhaust opening is formed in said enclosure for receiving said first exhaust means, said first exhaust means substantially closing said opening when in each of its engagement and out of engagement positions relative to said opening.
11. The invention set forth in claim 10 wherein said enclosure includes a second exhaust opening formed therein above said access opening, said second exhaust means including means surrounding said second exhaust opening.
12. The invention set forth in claim 11 wherein said enclosure is open at its lower end and terminates at substantially the lower end of said vessel.
13. The invention set forth in claim 11 wherein said enclosure is substantially closed at its lower end and extends a substantial distance below said vessel.
14. A method of controlling the discharge of pollutants from an open topped vessel containing hot metal wherein gases are introduced into said metal through tuyeres located in the lower end of said vessel, the steps of, surrounding at least the top and sides of said vessel with an enclosure, positioning a first exhaust means in a surrounding relation to the open top of said vessel when the latter is in a substantially vertical position, raising said first exhaust means away from said vessel, tilting said vessel to position its open top adjacent an access opening in said enclosure and displaced from said first exhaust means, creating an in-draft through said access opening to prevent the discharge of pollutants, and charging said vessel through said access opening, and collecting at least a portion of said pollutants by second exhaust means located over said access opening.
15. The method set forth in claim 14 and including the steps of returning said vessel to its vertical position and closing said access opening.
16. A converter vessel having a metal receiving opening, an enclosure substantially surrounding said vessel and having means defining a roof portion disposed above said vessel and a side wall portion extending generally downwardly from said roof portion, means defining an access opening formed in one of said wall portions, means mounted on said enclosure for selectively opening and closing said access opening, said vessel being adapted to be tilted about a substantially horizontal axis to position said metal receiving opening adjacent said access opening so that said vessel may be charged, first exhaust means extending through said roof portion for engaging said metal receiving opening when said vessel is in an untilted position and second exhaust means disposed above said access opening, said first and second exhaust means being operative to prevent the escape of pollutants when said vessel is tilted in its metal receiving position.
US3743264D 1971-07-26 1971-07-26 Steel conversion apparatus Expired - Lifetime US3743264A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US16592071A true 1971-07-26 1971-07-26

Publications (1)

Publication Number Publication Date
US3743264A true US3743264A (en) 1973-07-03

Family

ID=22601021

Family Applications (1)

Application Number Title Priority Date Filing Date
US3743264D Expired - Lifetime US3743264A (en) 1971-07-26 1971-07-26 Steel conversion apparatus

Country Status (13)

Country Link
US (1) US3743264A (en)
JP (1) JPS5614724B1 (en)
AU (1) AU469278B2 (en)
BE (1) BE786662A (en)
BR (1) BR7205016D0 (en)
CA (1) CA1016744A (en)
CS (1) CS195256B2 (en)
DE (1) DE2233443C3 (en)
FR (1) FR2147157B1 (en)
GB (1) GB1403411A (en)
NL (1) NL170439C (en)
PL (1) PL82806B1 (en)
SE (1) SE407076B (en)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938788A (en) * 1974-02-02 1976-02-17 Fried. Krupp Huttenwerke Ag Apparatus for the production of metals by a smelting metallurgical process
US4050682A (en) * 1975-03-31 1977-09-27 Pennsylvania Engineering Corporation Method and apparatus for handling off-gases from metal refining vessel
US4076223A (en) * 1975-12-31 1978-02-28 Pennsylvania Engineering Corporation Enclosure for steel converting apparatus
US4094496A (en) * 1975-12-31 1978-06-13 Pennsylvania Engineering Corporation Enclosure for steel converting apparatus
US4097029A (en) * 1975-12-31 1978-06-27 Pennsylvania Engineering Corporation Enclosure for steel converting apparatus
US4190237A (en) * 1977-04-02 1980-02-26 Verfahrenstechnik Dr. Ing. Kurt Baum Apparatus for treating refinery waste gases
US4212453A (en) * 1977-02-21 1980-07-15 Voest-Alpine Aktiengesellschaft Plant for refining pig iron
US4234170A (en) * 1979-06-06 1980-11-18 National Steel Corporation Movable charging emissions control hood for BOF

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2313660C3 (en) * 1973-03-20 1981-09-10 M.A.N. Maschinenfabrik Augsburg-Nuernberg Ag, 4200 Oberhausen, De
SE7610966A (en) * 1976-02-19 1977-08-20 American Air Filter Co Suction devices for konverterugnar
AT357580B (en) * 1977-02-04 1980-07-25 Voest Alpine Ag Hood of a tilting converter having a converter stand
DE2705565C3 (en) * 1977-02-10 1984-10-11 Mannesmann Ag, 4000 Duesseldorf, De
AT356687B (en) * 1977-02-28 1980-05-12 Voest Alpine Ag hood
DE2821379C2 (en) * 1978-05-16 1988-06-30 Mannesmann Ag, 4000 Duesseldorf, De
AT357181B (en) * 1978-05-24 1980-06-25 Voest Alpine Ag Converter system with a tiltable Converter Gefaess
AT355071B (en) * 1978-05-24 1980-02-11 Voest Alpine Ag Converter plant with a metallurgical vessel
DE2922765A1 (en) * 1979-06-05 1981-02-19 Metallgesellschaft Ag A method and apparatus for preventing the casing Converter gas leakage from a Firedoor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803450A (en) * 1953-09-29 1957-08-20 Pennsylvania Engineering Corp Converter gas cleaning system
US3014255A (en) * 1957-11-15 1961-12-26 Heraeus Gmbh W C Method of operating vacuum induction furnace
US3205810A (en) * 1962-09-04 1965-09-14 Inland Steel Co Adjustable hood construction for metallurgical furnace

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE715184C (en) * 1937-07-03 1941-12-15 Neunkircher Eisenwerk Ag Device for covering the exhaust ports of converter stacks u. like.
DE949293C (en) * 1953-11-29 1956-09-20 August Mueser Converter deduction
DE931597C (en) * 1954-02-26 1955-08-11 Gutehoffnungshuette Sterkrade Converter exhaust Fang
DE1408153C3 (en) * 1959-12-08 1973-11-15 Fried. Krupp Gmbh, 4300 Essen
FR1312160A (en) * 1961-12-19 1962-12-14 Calderon Automation Inc Improved method and apparatus for manufacture of steel
US3325160A (en) * 1963-03-06 1967-06-13 Asea Ab Vacuum-enclosed tiltable furnace
FR1420981A (en) * 1965-01-15 1965-12-10 Demag Ag Dedusting installation of exhaust gas converter and method for the removal of gas
JPS4422321Y1 (en) * 1966-10-15 1969-09-20
DE1533908A1 (en) * 1967-06-16 1970-02-12 Demag Ag Converter for steel making by the basic oxygen process and method for producing steel
FR1590185A (en) * 1968-10-04 1970-04-13
US3558116A (en) * 1968-10-07 1971-01-26 Kawasaki Steel Co Waste gas leakage preventive device in the basic oxygen furnace
DE1948677A1 (en) * 1969-09-26 1971-04-01 Baumco Appbau Ges Mbh Flue gas deflector for use on converters - during charging

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2803450A (en) * 1953-09-29 1957-08-20 Pennsylvania Engineering Corp Converter gas cleaning system
US3014255A (en) * 1957-11-15 1961-12-26 Heraeus Gmbh W C Method of operating vacuum induction furnace
US3205810A (en) * 1962-09-04 1965-09-14 Inland Steel Co Adjustable hood construction for metallurgical furnace

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3938788A (en) * 1974-02-02 1976-02-17 Fried. Krupp Huttenwerke Ag Apparatus for the production of metals by a smelting metallurgical process
US4050682A (en) * 1975-03-31 1977-09-27 Pennsylvania Engineering Corporation Method and apparatus for handling off-gases from metal refining vessel
US4076223A (en) * 1975-12-31 1978-02-28 Pennsylvania Engineering Corporation Enclosure for steel converting apparatus
US4094496A (en) * 1975-12-31 1978-06-13 Pennsylvania Engineering Corporation Enclosure for steel converting apparatus
US4097029A (en) * 1975-12-31 1978-06-27 Pennsylvania Engineering Corporation Enclosure for steel converting apparatus
US4212453A (en) * 1977-02-21 1980-07-15 Voest-Alpine Aktiengesellschaft Plant for refining pig iron
US4190237A (en) * 1977-04-02 1980-02-26 Verfahrenstechnik Dr. Ing. Kurt Baum Apparatus for treating refinery waste gases
US4234170A (en) * 1979-06-06 1980-11-18 National Steel Corporation Movable charging emissions control hood for BOF

Also Published As

Publication number Publication date
AU469278B2 (en) 1976-02-12
AU4487872A (en) 1974-01-31
NL7210223A (en) 1973-01-30
BR7205016D0 (en) 1973-06-07
CA1016744A (en) 1977-09-06
FR2147157A1 (en) 1973-03-09
DE2233443A1 (en) 1973-02-15
CS195256B2 (en) 1980-01-31
NL170439C (en) 1982-11-01
GB1403411A (en) 1975-08-28
DE2233443B2 (en) 1978-04-27
JPS5614724B1 (en) 1981-04-06
PL82806B1 (en) 1975-10-31
SE407076B (en) 1979-03-12
BE786662A (en) 1972-11-16
DE2233443C3 (en) 1987-01-22
BE786662A1 (en)
FR2147157B1 (en) 1976-08-06
CA1016744A1 (en)
NL170439B (en) 1982-06-01

Similar Documents

Publication Publication Date Title
EP0190313B2 (en) Method and apparatus for continuous steelmaking
US3873073A (en) Apparatus for processing molten metal
US5690888A (en) Apparatus and method for tapping a reactor containing a molten fluid
RU2044977C1 (en) Melting unit and method for preliminary heating and melting of charge
ES2299421T3 (en) Pre-heating, fusion, refining and continuous load colada.
US4456476A (en) Continuous steelmaking and casting
WO1981001862A1 (en) Metallurgical melting and refining apparatus
AU747445B2 (en) Apparatus and process system for preheating of steel scrap for melting metallurgical furnaces with concurrent flow of scrap and heating gases
US4105438A (en) Continuous metal melting, withdrawal and discharge from rotary furnaces
JP3972266B2 (en) Method and apparatus for operating a double vessel arc furnace
US6596221B1 (en) Metallurgical vessel having a tapping device and method for the controlled, slag-free extraction of molten metal from said vessel
US3801082A (en) Oxygen refuse converter
US4615511A (en) Continuous steelmaking and casting
US3205810A (en) Adjustable hood construction for metallurgical furnace
US4506370A (en) Arc furnace installation with shroud
AU600206B2 (en) Method for melting scrap or other materials and apparatus for implementing the method
US2828516A (en) Ladle for casting metal
US3809376A (en) Metal factory with at least one tiltable converter
US2855194A (en) System for sealing a converter
US3938788A (en) Apparatus for the production of metals by a smelting metallurgical process
CA1217337A (en) Safety device for ladle cover
US4836510A (en) Metallurgical plant
EP0958481B1 (en) Smelting installation with an electric-arc furnace
RU2152437C1 (en) Process of metallurgical treatment of iron-carrying material and steel melting furnace
SU1493114A3 (en) Method and apparatus for continuous pre-heating of charge materials for steel-melting furnace