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EP0001035A1 - Mélangeur, spécialement mélangeur de fonte - Google Patents

Mélangeur, spécialement mélangeur de fonte Download PDF

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Publication number
EP0001035A1
EP0001035A1 EP78100017A EP78100017A EP0001035A1 EP 0001035 A1 EP0001035 A1 EP 0001035A1 EP 78100017 A EP78100017 A EP 78100017A EP 78100017 A EP78100017 A EP 78100017A EP 0001035 A1 EP0001035 A1 EP 0001035A1
Authority
EP
European Patent Office
Prior art keywords
mixer
chamber
pouring
pig iron
passage
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
Application number
EP78100017A
Other languages
German (de)
English (en)
Other versions
EP0001035B1 (fr
Inventor
Ernst Riegler
Manfred Schmidt
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
Application filed by Voestalpine AG filed Critical Voestalpine AG
Publication of EP0001035A1 publication Critical patent/EP0001035A1/fr
Application granted granted Critical
Publication of EP0001035B1 publication Critical patent/EP0001035B1/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
    • F27D3/14—Charging or discharging liquid or molten material
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/06—Constructional features of mixers for pig-iron

Definitions

  • the invention relates to mixers, in particular pig iron mixers, with a mixer chamber fixed to the foundation or mounted on a vehicle.
  • the invention aims to avoid these difficulties and has as its object a fixed To create a mixer, that is, a mixer for which no tilt position and no tilt drive for the mixer chamber is necessary, in which the amount of melt to be removed can be metered well; in which there is no need to pay attention to gas tightness and in which only the melt weight has to be taken into account for the dimensioning of its walls.
  • the mixer chamber is connected by a passage arranged near the floor to at least one pouring chamber which can be pivoted relative to the mixer chamber in the manner of communicating vessels, the pivot axis of which likewise runs near the floor, preferably through the passage.
  • the pouring chamber is advantageously designed as a pipe elbow, which has at least one lateral pouring spout at its upper end.
  • the bottom of the mixer chamber is expediently inclined towards the passage.
  • the mixer chamber is cylindrical and is provided with a pipe elbow on each of its two end walls, the pivot axis of each pipe elbow being arranged in the center of the passage parallel to the cylinder axis and the length of the pipe elbow corresponding approximately to the diameter of the mixer chamber.
  • the pouring chamber can be pivoted on both sides from a vertical position by at least 90 ° in pouring positions. This makes it possible to take pig iron out of a mixer from two crane areas.
  • the passage can be blocked by means of a shut-off device, such as a slide.
  • the pouring chamber is provided with an about its pivot axis diametrically opposite the counterweight, said counterweight and filled with cast iron pouring chamber common center of gravity in vertikäler position of the A usg screen- chamber below their pivot axisuitee
  • This has the advantage that the pouring chamber automatically returns to the rest position in the event of a failure of its rotary actuator, which will reliably prevent the melt from being unwanted.
  • two pressure medium cylinders preferably telescopic cylinders, are advantageously provided symmetrically to the pouring chamber, each one being stationary on the one hand and articulated on the pouring chamber on the other hand.
  • a slag overflow opening which can be closed by means of a shut-off device is expediently provided on the latter.
  • FIG. 1 shows a side view
  • FIG. 2 shows an end view of a pig iron mixer in a schematic representation.
  • Fig. 3 is a section taken along the line III-III of Fig. 2 is shown on an enlarged scale.
  • a mixer chamber of a pig iron mixer designed with a circular cylindrical cross section, which is mounted stationary on the foundation 4 via foundation supports 2 and 3.
  • the pig iron mixer is filled through the pouring opening 5, which can be closed by a cover 6 by means of a cover lifting mechanism 7.
  • a heating device 8 is provided for heating the mixer chamber.
  • a slag overflow opening 9, which can be closed by a gate valve 10, serves to remove the slag.
  • a pouring chamber 12, 12 'designed as a pipe elbow is provided on each of the two end walls 11, 11', each with the interior of the mixer chamber through a passage 14, 14 'arranged in the vicinity of the bottom 13 of the same in the manner of communicating vessels are connected.
  • the pouring chambers 12 and 12 ' are pivotally attached to the mixer chamber about the axes 15 and 15', respectively, the axes being arranged in the center of the passage and parallel to the cylinder axis 16 of the mixer chamber 1.
  • the bottom 13 of the mixer chamber is inclined towards the passages 14, 14 'so that the passages lie at the lowest points of the pig iron mixer.
  • Pouring spouts 17 are provided laterally at the upper ends of the pouring chambers 12, 12 '.
  • the vertical part of each pouring chamber is guided somewhat higher than the maximum permissible fill level, which is denoted by 18 in FIG. 1.
  • Both pouring chambers 12 and 12 ' can be pivoted from their vertical rest position, which is shown in Fig. 2 with solid lines, on both sides by at least 90 ° in pouring positions, which are shown in Fig. 2 with dash-dotted lines.
  • Two pivoting telescopic cylinders 19 are provided as swivel drives, which are articulated at one end and at the other end to the pouring chamber 12, 12 '. To remove the pig iron, the pouring chambers are each inclined by means of the telescopic cylinder 19 until the pig iron emerges from the pouring spout 17 in a calm jet.
  • a counterweight 20 is provided at the bottom of each pouring chamber to ensure that pig iron does not flow out unintentionally if the rotary actuator fails provided, which is dimensioned such that the counterweight 20 and the pouring chamber filled with pig iron 12 or 12 'common center of gravity is in the rest position of the pouring chamber below the pivot axis 15.
  • each passage 14 or 14 ′ can be closed with a slide 21, which is shown in detail in FIG. 3. After closing the slide, the pouring chamber to be repaired can be removed and replaced with an intact one.
  • the removal of pig iron can take place from two sides, i.e. removal is possible in two crane areas and thus from two different halls.
  • Fig. 1 the slag floating on the pig iron, which is designated by 22, is shown.
  • the end walls 11, 11 'of the mixer chamber act as a slag cutter, so that only slag-free pig iron flows into each of the pouring chambers.
  • the pig iron mixer according to the invention is not tied to any particular external shape and position; the cylindrical mixer chamber can also be set up on the foundation with a vertical axis.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Waste-Gas Treatment And Other Accessory Devices For Furnaces (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
EP78100017A 1977-09-02 1978-06-01 Mélangeur, spécialement mélangeur de fonte Expired EP0001035B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT6322/77 1977-09-02
AT0632277A AT367099B (de) 1977-09-02 1977-09-02 Mischer, insbesondere roheisenmischer

Publications (2)

Publication Number Publication Date
EP0001035A1 true EP0001035A1 (fr) 1979-03-21
EP0001035B1 EP0001035B1 (fr) 1980-10-01

Family

ID=3585132

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100017A Expired EP0001035B1 (fr) 1977-09-02 1978-06-01 Mélangeur, spécialement mélangeur de fonte

Country Status (5)

Country Link
US (1) US4200266A (fr)
EP (1) EP0001035B1 (fr)
AT (1) AT367099B (fr)
DE (1) DE2860187D1 (fr)
IT (1) IT7827159A0 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT382389B (de) * 1985-06-13 1987-02-25 Voest Alpine Ag Verfahren und anlage zur verwertung von huettenschlacke
CN1041696C (zh) * 1995-11-13 1999-01-20 大重集团公司 一种混铁车

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE250708C (fr) *
DE185965C (fr) *

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US998787A (en) * 1910-07-07 1911-07-25 Theodor Loehe Tilting forehearth for furnaces.
US1969325A (en) * 1931-07-21 1934-08-07 John D Pugh Hot metal car
US2039738A (en) * 1933-05-03 1936-05-05 John D Pugh Metallurgical furnace
US3032841A (en) * 1957-03-08 1962-05-08 Edmund Q Sylvester Methods and apparatus for casting metal
US3433472A (en) * 1965-10-22 1969-03-18 United States Steel Corp Apparatus for controlling flow of liquid from a container
US3441261A (en) * 1966-03-11 1969-04-29 Ajax Magnethermic Corp Constant level holding furnaces
DE2052101A1 (en) * 1970-10-23 1972-04-27 Dr. Schmitz & Apelt Industrieofenbau GmbH, 5600 Wuppertal-Langerfeld Metal melt transfer and dispensing method - for die casting machines

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE250708C (fr) *
DE185965C (fr) *

Also Published As

Publication number Publication date
DE2860187D1 (en) 1981-01-08
AT367099B (de) 1982-05-25
EP0001035B1 (fr) 1980-10-01
ATA632277A (de) 1981-10-15
IT7827159A0 (it) 1978-08-30
US4200266A (en) 1980-04-29

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