EP0006084B1 - Dispositif de captage et d'évacuation des gaz d'échappement - Google Patents

Dispositif de captage et d'évacuation des gaz d'échappement Download PDF

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Publication number
EP0006084B1
EP0006084B1 EP79890008A EP79890008A EP0006084B1 EP 0006084 B1 EP0006084 B1 EP 0006084B1 EP 79890008 A EP79890008 A EP 79890008A EP 79890008 A EP79890008 A EP 79890008A EP 0006084 B1 EP0006084 B1 EP 0006084B1
Authority
EP
European Patent Office
Prior art keywords
hood
crane
chimney
trolley
crane trolley
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
Application number
EP79890008A
Other languages
German (de)
English (en)
Other versions
EP0006084A1 (fr
Inventor
Friedrich Laimer
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.)
Voestalpine AG
Original Assignee
Voestalpine AG
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
Priority claimed from AT391678A external-priority patent/AT357577B/de
Application filed by Voestalpine AG filed Critical Voestalpine AG
Publication of EP0006084A1 publication Critical patent/EP0006084A1/fr
Application granted granted Critical
Publication of EP0006084B1 publication Critical patent/EP0006084B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/0025—Charging or loading melting furnaces with material in the solid state
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
    • B08B15/02—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area using chambers or hoods covering the area
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D45/00—Equipment for casting, not otherwise provided for
    • B22D45/005—Evacuation of fumes, dust or waste gases during manipulations in the foundry
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/38—Removal of waste gases or dust
    • C21C5/40—Offtakes or separating apparatus for converter waste gases or dust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
    • F27D17/001—Extraction of waste gases, collection of fumes and hoods used therefor
    • F27D17/003—Extraction of waste gases, collection of fumes and hoods used therefor of waste gases emanating from an electric arc furnace

Definitions

  • the invention relates to a device for collecting and discharging exhaust gases generated during charging or pouring of metallurgical vessels in a steelworks, the goods to be charged or poured being brought into or out of the operating position with a container that can be moved by a crane a fume hood, which in the operating position covers the container and the mouth of the metallurgical vessel and is connected to an exhaust gas line system, the fume hood having one or more exhaust openings which can be connected to the exhaust gas line system at predetermined locations above the working positions.
  • the crane driver has no opportunity to observe the hooking of the crane hooks in the corresponding eyelets of the metallurgical vessel.
  • this known device there is the difficulty that the extractor hood, due to the need to move the crane towards the metallurgical vessel during charging, e.g. Converter, can only be designed up to a certain size; it is too small for the complete detection of the smoke, which is why some of the exhaust gases escape past the extractor hood.
  • the invention aims at avoiding these disadvantages and difficulties and has as its object to create a device with which the gases generated during the production of steel are almost completely recorded, this device being advantageous for a plurality of work stations where smoke is generated, can be used, but the hall crane can be moved unhindered by stationary installations in the different operating positions.
  • the unit consisting of crane trolley and extractor hood can be moved between different operating positions of the metallurgical vessel, e.g. between the filling position and the pouring position of a pig iron mixer, with the extractor hood being connectable to a chimney in every operating position.
  • the opening in the fume cupboard is advantageously widened and preferably extended in the direction of travel of the crane trolley, corrective movements of the crane trolley being able to be carried out without adversely affecting the gas discharge.
  • a flange which is extended in the direction of travel of the crane trolley to be attached to the connection opening of the extractor hood.
  • FIG. 1 is a side view of the device on a pig iron emptying pit, partly in section
  • Fig. 2 is a side view of the device on a pig iron mixer, partly in section, in two positions
  • Fig. 3 is a side view of the Device at a converter stand
  • Fig. 4 shows a front view of the device, partly in section.
  • Figure 5 is a page View of the connection position of the extractor hood to a chimney opening
  • FIGS. 6 and 6a show sections along the line VI-VI of FIG. 5, with FIG. 6 corresponding to the extended position and FIG. 6a to the broken line position in FIG. 5.
  • a bridge crane 2 mounted on supports 1 can be moved along rails 3 along a steelworks hall.
  • the crane trolley 5 is guided on the crane bridge 4 and, according to the invention, forms a movable unit with a hood 6 surrounding it.
  • the extractor hood is provided with one or more discharge openings 7.
  • In the roof 8 of the hall are at predetermined locations, u. mounted above the smoke-generating work stations, chimney sockets 9, which if necessary lead to a common suction and filter system with manifolds 10.
  • the chimney stubs have a funnel-shaped part 11.
  • the connecting part of the hood 6 is formed with a flange 12 which is elongated in the running direction of the crane trolley, as can be seen more clearly in FIGS. 5 and 6a.
  • Fig. 6 corresponds to the fully extended position of Fig. 5, in which a correction can be made in both directions back and forth.
  • Fig. 6a corresponds to the dashed position of Fig. 5.
  • the openings of the chimney nozzles can be opened and closed with panels, flaps or the like. Limit switches, gate controls or similar devices can be provided for their actuation.
  • a chimney nozzle 9 adjoining the extractor hood 6 is opened, while advantageously all the other chimney nozzles remain closed in order to prevent false air being drawn into the filter system.
  • the hood can, as in the
  • FIG. 1 to 4 is shown to be equipped with guide plates 13 laterally attached to its lower edge and a chain curtain 14 in order to bring about improved smoke guidance.
  • the guide plates are guided down between the bridge girders 4, 4 '.
  • a mesh 15 can be provided on the underside to prevent flames from penetrating.
  • Various possible uses of the device according to the invention are illustrated in the individual figures. u. between in Fig. 1 at a pig iron dump.
  • a pig iron transport pan 16 hangs on the hook 17 of the crane trolley 5 and is fed by a torpedo mixer 18.
  • the smoke rising during the loading process is taken up by the hood 6 and discharged through the chimney nozzle 9, which nozzle is at a distance A from the crane support 1.
  • FIG. 2 illustrates the use of the device according to the invention when pouring pig iron into a pig iron mixer and when pouring pig iron from the mixer into a transport pan.
  • the unit according to the invention consisting of crane trolley 5 and extractor hood 6 has been moved into the operating position shown in dash-dotted lines, the snout of the pig iron pan 19 coming to rest above the pouring opening 20 of the pig iron mixer 21, so that the pouring process can begin by tilting the pan 19.
  • the associated chimney socket 9 ' to which the extractor hood connects, is located at a distance A 2 from the crane support.
  • the hood 6 is moved into the fully extended position, the associated chimney socket 9 ′′ being at a distance A 3 from the crane support 1.
  • FIG. 3 shows the charging of a converter 22 by means of a scrap chute 23 or a pig iron transport pan 16, the converter being in the tilted position.
  • the extractor hood 6, which is positioned over the mouth of the converter 22 and the charging containers 16, 23, adjoins a chimney nozzle 9 ′′ ′ , which is again at a distance A 4 from a crane support 1.
  • a main extractor hood 24 is provided centrally above the converter stand which absorbs the exhaust gases generated during the refreshing in the upright position of the converter 22.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Claims (4)

1. Dispositif de captage et d'évacuation de gaz d'echappement apparaissant lors du chargement et du déchargement de récipients métallurgiques (18, 21, 22) dans une aciérie, la matière à charger ou à décharger étant amenée à l'aide d'un récipient mobile (16, 19, 23) déplaçable au moyen d'un pont rou)ant(2) dans la position d'exploitation ou éloigné de celle-ci, l'installation comportant une hotte d'évacuation (6) qui, en position d'exploitation, couvre le récipient mobile (16, 19, 23) et la gueule du récipient métallurgique (18, 21, 22) et qui est raccordée à un système de conduits d'évacuation des gaz d'échappement (9, 9', 9", 9''', 10, 11) la hotte d'évacuation (6) présentant une ou plusieurs ouvertures d'évacuation (7) qui peuvent être raccordées au système de conduits d'évacuation (9, 9', 9", 9"', 10, 11) en des endroits déterminés au-dessus des postes de travail, caractérisé en ce que le chariot (5) du pont, ensemble transportable avec la hotte d'évacuation (6) qui l'entoure.
2. Dispositif suivant la revendication 1, caractérisé en ce que l'ensemble constitué par le chariot (5) du pont roulant et la hotte d'évacuation (6) peut être déplacé entre différentes positions d'exploitation du récipient métallurgique (18, 21, 22), par exemple entre la position de remplissage et la position de coulée d'un mélangeur de fonte (21), la hotte d'évacuation (6) pouvant être raccordée à une cheminée (9, 9', 9", 9"') dans chaque position d'exploitation.
3. Dispositif suivant les revendications 1 ou 2, caractérisé en ce que l'ouverture (11) de la cheminée d'évacuation (8) est élargie et de préférence allongée dans la direction de roulement du chariot (5) du pont, des mouvements de correction du chariot (5) du pont pouvant être exécutés sans nuire à l'évacuation des gaz.
4. Dispositif suivant les revendications 1 à 3, caractérisé en ce qu'à l'ouverture de raccordement (7) de la hotte d'évacuation (6) est fixée une bride allongée dans la direction de roulement du chariot (5) du pont.
EP79890008A 1978-05-30 1979-05-29 Dispositif de captage et d'évacuation des gaz d'échappement Expired EP0006084B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3916/78 1978-05-30
AT391678A AT357577B (de) 1973-08-06 1978-05-30 Einrichtung zum auffangen und ableiten von abgasen

Publications (2)

Publication Number Publication Date
EP0006084A1 EP0006084A1 (fr) 1979-12-12
EP0006084B1 true EP0006084B1 (fr) 1981-10-28

Family

ID=3557178

Family Applications (1)

Application Number Title Priority Date Filing Date
EP79890008A Expired EP0006084B1 (fr) 1978-05-30 1979-05-29 Dispositif de captage et d'évacuation des gaz d'échappement

Country Status (4)

Country Link
US (1) US4286776A (fr)
EP (1) EP0006084B1 (fr)
JP (1) JPS54155911A (fr)
DE (1) DE2961157D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1146773B (it) * 1981-04-23 1986-11-19 Daneco Danieli Ecologia Spa Cappe mobili di aspirazione fumi secondari per acciaierie e fonderie
IT1175107B (it) 1983-07-27 1987-07-01 Daneco Danieli Ecologia Spa Perfezionamenti alle cappe di aspirazione fumi secondari per acciaierie e fonderie
US4653064A (en) * 1985-10-02 1987-03-24 Pennsylvania Engineering Corporation Gas collector for metallurgical vessels
US5456631A (en) * 1994-08-12 1995-10-10 Eisenmann Corporation Hood style exhaust system construction
CN105499247B (zh) * 2015-12-31 2017-12-15 山东昌宁集团有限公司 一种旋转式顶吸除尘系统及其除尘方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE567990A (fr) *
DE30845C (de) * V. MASEK in Karolinenthal, Böhmen Drehbare Teleskopen-Esse
US2693749A (en) * 1950-11-13 1954-11-09 Western Electric Co Exhaust system for ladles
US2923227A (en) * 1957-12-16 1960-02-02 Harry C Hawley Fumes control system
DE1228287B (de) * 1963-08-06 1966-11-10 Gussstahlwerk Oberkassel Ag Vo Absaugevorrichtung der Giesspfanne und der Abstichrinne eines Schmelzofens
US3380371A (en) * 1966-12-27 1968-04-30 Hawley Manufacturing Corp Fumes control system including movable hood
FR1569540A (fr) * 1967-09-01 1969-05-30
US4099709A (en) * 1977-01-12 1978-07-11 Albert Calderon Method and apparatus for controlling emissions from oxygen steelmaking furnaces
AT357580B (de) * 1977-02-04 1980-07-25 Voest Alpine Ag Abzugshaube an einem einen kippbaren konverter aufweisenden blasstand
AT357581B (de) * 1977-05-10 1980-07-25 Voest Alpine Ag Abzugshaube zum ableiten des beim chargieren eines metallurgischen gefaesses aufsteigenden rauches bzw. abgases

Also Published As

Publication number Publication date
US4286776A (en) 1981-09-01
EP0006084A1 (fr) 1979-12-12
DE2961157D1 (en) 1982-01-07
JPS54155911A (en) 1979-12-08

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