Classifications

• • 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
  • C21C5/42—Constructional features of converters
  • C21C5/46—Details or accessories
  • C21C5/4633—Supporting means
• • 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
  • C21C5/42—Constructional features of converters
  • C21C5/46—Details or accessories
  • C21C5/50—Tilting mechanisms for converters
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F27—FURNACES; KILNS; OVENS; RETORTS
  • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
  • F27B14/00—Crucible or pot furnaces
  • F27B14/02—Crucible or pot furnaces with tilting or rocking arrangements
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F27—FURNACES; KILNS; OVENS; RETORTS
  • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
  • F27B3/00—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces
  • F27B3/06—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement
  • F27B3/065—Hearth-type furnaces, e.g. of reverberatory type; Tank furnaces with movable working chambers or hearths, e.g. tiltable, oscillating or describing a composed movement tiltable

Definitions

• the invention relates to a tiltable converter, comprising a converter vessel with a converter axis, a
• the suspension system comprises at least two horizontal connecting elements aligned parallel to a support ring plane formed by the support ring, which each engage in an articulated manner with their opposite ends on the converter vessel or on the support ring.
• Another object of the invention is a method for converting a tiltable converter.
• suspension systems for supporting a converter vessel.
• the essential objectives of these suspension systems are a small space requirement of the suspension systems while using the largest possible converter vessels, an optimal support of the converter to the suspension systems, the inclusion of converter deformations by the suspension systems and low maintenance and a high durability of the suspension systems.
• DE 4327640, US 6228320, WO 2011098318 and WO 2012025262 each disclose a tiltable Converter with a converter vessel and a support ring, wherein the converter vessel is supported by means of several pendulum rods on the support ring.
• the articulations of the pendulum rods on the support ring or on the converter vessel are partially different in the specified documents, in particular articulated and / or articulated on all sides.
• stabilizing devices are additionally provided for limiting a movement of the converter vessel relative to the support ring.
• Linkages or bearings in particular in the case of a tilted converter vessel during charging or during a tapping, are subjected to high loads and therefore have to be correspondingly large and robust. This leads to a high space requirement and high costs of the corresponding suspension systems. In addition, this high load leads to an impairment of the service life of the suspension systems.
• Another disadvantage resulting from the robust design of the pendulum rods or their bearings is that the space available for the converter vessel is limited or the achievable diameter of the converter vessel is limited. Partial stabilization devices are necessary, which cause additional costs and maintenance.
• a tiltable converter is disclosed in WO 2008092488.
• a tiltable converter with a plurality of connecting elements is supported on the support ring, wherein the connecting elements are designed as disk packs and / or as pendulum rods.
• the differently designed fasteners lead to an increased amount of warehouse logistics and cause therefore high storage costs or logistics costs.
• WO 2011157498 discloses a tiltable converter, which by means of lamellae for receiving vertical forces on
• the invention aims to avoid the disadvantages and difficulties described and has as its object to provide a tiltable converter with a suspension system in which the connecting elements are subjected to lower loads.
• a tiltable converter comprising a converter vessel with a
• Converter axis a the converter vessel by far comprises Send support ring with two diametrically opposed trunnions, which are each arranged on a fixed bearing side or on a floating bearing side of the support ring, a suspension system for supporting the converter vessel on the support ring, comprising parallel to a support ring formed by the support ring level aligned horizontal connecting elements, each with its opposite ends on
• Converter vessel or articulated attack on the support ring solved.
• at least two horizontal connecting elements are arranged in the region of at least one of the two trunnions, wherein all horizontal connecting elements arranged in the region of the trunnions lie in the same plane and wherein this plane is in an upright position of the converter vessel when the converter axis is aligned parallel to the perpendicular, below or lies above the support ring level.
• Under converter axis is the axis of rotation of the
• the tiltable converter comprises a converter ring with spacing comprehensive support ring with two diametrically opposed trunnions, which are each arranged on a fixed bearing side or on a floating bearing side of the support ring.
• the fixed bearing side of the support ring is that side of the support ring on which the support pin is mounted by means of a fixed bearing.
• the floating bearing side of the support ring is that side of the support ring on which the support pin is mounted by means of a movable bearing.
• a fixed bearing is to be understood as a bearing which can absorb axial and radial forces.
• a floating bearing can only absorb radial forces.
• the tiltable converter comprises parallel to a supporting ring formed by the support ring ring oriented horizontal connecting elements, which engage in each case with their opposite ends on the converter vessel or on the support ring articulated.
• the support ring plane is normal to the axis of rotation of the support ring.
• the horizontal connecting elements preferably have an elongated shape with a straight longitudinal axis.
• the horizontal connecting elements each engage with their opposite ends on the converter vessel or on the support ring articulated, whereby a force transmission between the horizontal connecting elements and the
• Converter vessel or the support ring is made possible. This is a constraint-free support of the
• Converter vessel secured to the support ring.
• the horizontal connecting elements engage only with their opposite ends on the converter vessel or on the support ring. Endings are to be understood as meaning end regions, in particular the horizontal connecting elements in their longitudinal extent along the longitudinal axes of which delimiting areas. Preferably, at least one tab with a bearing is arranged at these end regions. According to the invention at least two horizontal connecting elements are arranged in the region of at least one of the two support pins, wherein all disposed in the region of the support pins horizontal connecting elements lie in the same plane and wherein this plane in the upright position of
• Converter vessel when the converter axis is aligned parallel to the Lot, below or above the support ring level.
• the converter vessel can take various tilting positions. For example, the converter vessel is tilted at a charge of liquid pig iron and takes one
• the converter vessel When tapping the converter vessel is also tilted and takes a tapping position. Under tilted converter is to be understood by the Lot, which is perpendicular tocov vom the earth's gravity field, deviating position of the converter axis. In the charging position, the converter axis typically includes an angle of 50 ° to 60 ° with the solder, in the tapping position typically 80 ° to 120 °.
• Converter axis is aligned parallel to the Lot, the horizontal connecting elements are preferably below the
• the arrangement according to the invention in which at least two horizontal connecting elements are arranged in the region of at least one of the two supporting pins, has the advantage that, in the case of the different tilting positions of the converter vessel, these horizontal connecting elements arranged in the region of the supporting journal, or their bearings, due to the division of the Weight forces of the converter vessel - and optionally its contents - are exposed to lower loads on several horizontal fasteners than is known in the embodiments disclosed in the prior art.
• these horizontal connecting elements and their bearings can be made smaller in this area, resulting in a reduction in the space required for these horizontal fasteners and their bearings.
• the available space for the converter vessel and the achievable diameter of the converter vessel can be increased thereby.
• the service life is increased in the different tilting positions by the lower loads of arranged in the region of at least one of the support pins horizontal connecting elements and their bearings.
• Converter vessel of each only a single arranged in this region of the support pin horizontal connecting element or its bearing is received.
• a preferred embodiment of the tiltable converter is characterized in that the suspension system comprises four horizontal connecting elements, wherein in each case two of the horizontal connecting elements are arranged on the fixed bearing side or on the floating bearing side of the support ring in the region of the support pins.
• the suspension system comprises four horizontal connection elements.
• this embodiment can contain exactly four horizontal connecting elements or can contain more than four horizontal connecting elements.
• exactly two horizontal connecting elements are arranged in the region of the trunnions, both on the fixed bearing side of the supporting ring and on the movable bearing side of the supporting ring.
• this embodiment contains exactly four horizontal connecting elements.
• the arrangement of exactly two horizontal connecting elements in the region of each of the supporting pins has the advantage that at the different tilting positions of the converter vessel, the horizontal connecting elements arranged in these regions of the supporting journal, or their bearings, due to the division of the weight forces of the converter vessel - and possibly its Content - are exposed to the two horizontal fasteners, lower loads than is known in the art disclosed embodiments.
• the horizontal connecting elements and their bearings can be made smaller in these areas, resulting in a reduction in the space required for the horizontal fasteners and their bearings.
• the available space for the converter vessel and the achievable diameter of the converter vessel can be increased thereby.
• a tilting axis formed by the support pins is provided, wherein the areas of the support pins by two in the plan view of the converter vessel symmetrically to the tilting axis and emanating from the converter axis straight line, which an angle of up to 60 °, preferred an angle of up to 55 ° are included.
• the converter vessel In the plan view of the converter vessel, the converter vessel is viewed in the direction parallel to the converter axis - either from above or from below.
• Tilting axis is to be understood as that axis about which the converter vessel can be tilted into the various tilting positions.
• the support pins comprise longitudinal axes which coincide with the tilt axis of the converter vessel.
• the lines divide the support ring circumference in sector areas. Those sector areas of the support ring circumference, which comprise a support pin, correspond to the areas according to the invention of the support pins.
• the angle, which is enclosed in each case by the two straight lines, is subdivided by the tilting axis into two parts of equal size.
• the two straight lines emanating from the converter axis include at least an angle of 10 °, preferably 15 °, whereby they can also enclose an angle of exactly 10 °, or of precisely 15 °.
• Converter axis outgoing straight line close an angle of up to 60 °, preferably an angle of up to 55 °, and they can also include an angle of exactly 60 °, or of precisely 55 °.
• the horizontal connecting elements Due to the arrangement of the horizontal connecting elements within these inventive areas of the trunnions, the horizontal connecting elements are very close to the trunnions.
• a preferred embodiment of the tiltable converter is given by the fact that the two arranged in the region of the support pins horizontal connecting elements are arranged in the plan view of the converter vessel symmetrical to the tilting axis.
• this embodiment has the additional advantage that at the different tilting positions of
• Converter vessel which are arranged in these areas of the trunnion horizontal connecting elements, or their bearings, due to a uniform distribution of weight of the converter vessel - and optionally its contents - are placed on the arranged in these areas horizontal connecting elements, lower loads than in the state of Technique disclosed embodiments is known.
• Converter vessel available space and the achievable diameter of the converter vessel can be increased.
• the horizontal connecting elements engage in
• Converter link point piercing beam is aligned.
• Converter vessel to understand that is not filled with molten materials such as iron or steel melts.
• the cold converter vessel has room temperature.
• substantially normal is meant a maximum deviation of the longitudinal axis of the horizontal connecting element from the normal with respect to the beam of +/- 5 °.
• all arranged in the region of the support pins horizontal connecting elements are normal or substantially normal to the emanating from the converter axis and piercing its respective Konverteranlenkddling beam.
• This embodiment of the invention has the advantage that constraining forces that occur in the case of a statically indeterminate type of suspension system are minimized. Forcing forces are forces that act on the suspension system due to geometric deformation of the converter vessel.
• the normal distance between one converter connection point of a horizontal connection element in the region of the support pins and the tilt axis is greater than the normal distance between in each case one support ring connection point of a horizontal connection element in the region of the support pins and the tilt axis.
• the constraining forces are further minimized.
• An embodiment of the tiltable converter is characterized in that the horizontal connecting elements are articulated by means mounted in bearings of the horizontal connecting elements articulated to the converter vessel attached to the converter support brackets and attached to the support ring support ring support brackets.
• the horizontal connecting elements are hinged to the same support ring support tab.
• At least one articulation element is designed as an eccentric pin.
• At least one articulation element as an eccentric bolt enables the adjustment of that horizontal connecting element, which is articulated by means of the eccentric bolt to a converter support bracket or to a support ring support bracket.
• Setting is the adjustment of the position of the bearing of the horizontal connection element.
• It can also be designed as eccentric bolt several or all of the hinge elements.
• the non-eccentric bolt designed coupling elements are designed for example as a normal bolt.
• the bolts pass through both the tabs of the horizontal connecting elements as well as the corresponding converter support tabs or supporting ring support tabs.
• An embodiment of the tiltable converter is characterized in that the coupling elements are aligned substantially parallel to the converter axis.
• the suspension system comprises three, preferably four vertical connecting elements which each engage with their opposite ends on the converter vessel or on the support ring and with the converter axis an angle of 0 ° to 45 °, preferably an angle of 10 ° Enclose 30 °.
• the vertical connecting elements preferably have an elongated shape with a straight longitudinal axis. If the vertical connecting elements form an angle of 0 ° to 45 °, preferably an angle of 10 ° to 30 ° with the converter axis, then also their respective longitudinal axes close an angle of 0 ° to 45 °, preferably an angle of 10 ° 30 ° with the converter axis. Different vertical connecting elements or their longitudinal axes can have different angles with the
• the suspension system includes exactly four vertical links.
• the horizontal connecting elements and the vertical connecting elements have substantially the same construction and / or substantially the same size.
• the essentially identical connecting elements lead to a reduced amount of storage logistics, since fewer different connecting elements must be stored. This therefore causes comparatively low storage costs or logistics costs.
• Another object of the present invention is a method for converting a tiltable converter with a converter vessel and the converter vessel associated converter axis, the converter vessel at a distance comprehensive support ring with two diametrically opposite and a tilting axis forming trunnions, each on a fixed bearing side or on a non-locating side of the support ring are arranged and a suspension system for supporting the converter vessel on the support ring.
• At least two horizontal connecting elements are arranged in the region of at least one of the two trunnions, wherein all horizontal connecting elements arranged in the region of the trunnions lie in the same plane and this plane is in the upright position of the converter vessel, if the converter axis is aligned parallel to the perpendicular, below or lies above the support ring level.
• the regions of the support pins are defined by two straight lines in the base of the converter vessel, which are symmetrical to the tilting axis and emanate from the converter axis, which form an angle of up to 60 °, preferably an angle of up to 55 °.
• the horizontal connecting elements are arranged so that they each with their opposite ends in Konverteranlenkddlingen or
• the horizontal connecting elements are articulated by means mounted in bearings of the horizontal connection elements articulated to the converter vessel converter support brackets and attached to the support ring support ring support brackets, at least one
• Anschelement is designed as eccentric bolt.
• an existing tiltable converter can be converted into the tiltable converter according to the invention.
• the suspension system of the existing tiltable converter already comprises horizontal connecting elements and / or vertical connecting elements and / or other connecting elements or elements for supporting the converter vessel on the supporting ring, then it may be necessary to apply at least some of these connecting elements and / or other elements to the method according to the invention Conversion of the converter to remove.
• FIG. 1 shows an overall view of a tiltable converter with a horizontal and vertical connecting elements comprise ⁇ the suspension system.
• FIG. 2 shows a projection of the tiltable converter shown in FIG.
• FIG. 3 shows a hinge element, which is designed as eccentric Bol ⁇ zen. Description of the embodiments
• the tiltable converter (1) comprises a converter vessel
• the tiltable converter (1) further comprises a suspension system for supporting the converter vessel (2) on the support ring (4) with horizontal connecting elements (8) aligned parallel to a support ring plane formed by the support ring (4), each with its opposite ends on the converter vessel (2 ) or on the support ring (4) articulated attack and which are arranged in the region of the support pin (6).
• On the ⁇ heksungssystem additionally comprising vertical connecting elements (11), each engaging with their opposite ends on the converter vessel (2) or on the support ring (4).
• the support pins (6,7) form a tilting axis (5).
• the horizontal connecting elements (8) are movable on at
• Converter vessel (2) fixed converter support tabs (14) and attached to the support ring (4) supporting ring support tabs (15) articulated.
• 2 shows a projection of the tiltable converter (1) shown in FIG. 1 onto a plane lying parallel to the support ring plane in the direction of the converter axis (3). The projection takes place in a viewing direction (21) indicated by an arrow in FIG. 2 is an illustration of the plan view of the tiltable converter (1) shown in FIG. 1 from below.
• the support ring plane lies in the plane of the drawing of FIG.
• the support pins (6,7) are each located on a fixed bearing side or on a floating bearing side of the support ring (4) and form the tilting axis (5).
• the horizontal connecting elements (8) and the vertical connecting elements (11) engage in each case at their opposite ends on the converter vessel (2) or on the support ring (4), wherein two horizontal connecting elements (8 Are arranged and wherein all in the region of the support pins (6,7) arranged horizontal connecting elements (8) lie in the same plane and wherein said plane in the upright position of
• Converter vessel (2) when the converter axis (3) parallel to the perpendicular - in Figure 2 normal to the plane of the drawing - is aligned below the support ring level.
• the regions of the support pins (6, 7) are each formed by two straight lines (9, 10) which are symmetrical to the tilting axis (5) and extend from the converter axis (3) and which have an angle (12) of up to 60 ° include an angle (12) of up to 55 °.
• the straight lines (9, 10) shown in FIG. 2 include, for reasons of clarity, an angle of more than 60 °, but the horizontal connecting elements (8) shown in FIG. 2 are arranged in the area according to the invention.
• Each in the area the horizontal trunnion (6,7) arranged horizontal connecting elements (8) are arranged symmetrically to the tilting axis (5), wherein they indicated in arrows Konverteranschddlingen (16) or in indicated by arrows
• the horizontal connecting element (8) which is pierced by the beam (18) in its converter connecting point (16), is aligned with its longitudinal axis (19) in its converter connecting point (16) normal to the beam (18) emanating from the converter axis (3) ,
• the horizontal connecting elements (8) are by means of
• At least one articulation element (13) is designed as an eccentric pin (20), which is shown in FIG.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Manufacturing & Machinery (AREA)
• Materials Engineering (AREA)
• Metallurgy (AREA)
• Organic Chemistry (AREA)
• Carbon Steel Or Casting Steel Manufacturing (AREA)
• Apparatus For Radiation Diagnosis (AREA)
• Pivots And Pivotal Connections (AREA)
• Vibration Prevention Devices (AREA)

Priority Applications (7)

Applications Claiming Priority (2)

Publications (1)

Family

ID=48470937

Family Applications (1)

Country Status (7)

Cited By (1)

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Citations (10)

Family Cites Families (2)

• 2012
  • 2012-06-15 EP EP12172163.3A patent/EP2674503A1/de not_active Withdrawn
• 2013
  • 2013-05-13 EP EP13724210.3A patent/EP2861772B1/de active Active
  • 2013-05-13 BR BR112014030652A patent/BR112014030652A2/pt active IP Right Grant
  • 2013-05-13 CN CN201380031376.2A patent/CN104350163B/zh not_active Expired - Fee Related
  • 2013-05-13 BR BR212014030652-0U patent/BR212014030652Y1/pt active IP Right Grant
  • 2013-05-13 WO PCT/EP2013/059785 patent/WO2013185991A1/de active Application Filing
  • 2013-05-13 KR KR20147035534A patent/KR20150018823A/ko not_active Application Discontinuation
  • 2013-05-13 IN IN8208DEN2014 patent/IN2014DN08208A/en unknown
  • 2013-05-13 RU RU2014140523A patent/RU2014140523A/ru unknown

Patent Citations (10)

Non-Patent Citations (2)

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