EP0771880B1 - Goulotte de distribution pour une installation d'alimentation sans cloche - Google Patents

Goulotte de distribution pour une installation d'alimentation sans cloche Download PDF

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Publication number
EP0771880B1
EP0771880B1 EP96112422A EP96112422A EP0771880B1 EP 0771880 B1 EP0771880 B1 EP 0771880B1 EP 96112422 A EP96112422 A EP 96112422A EP 96112422 A EP96112422 A EP 96112422A EP 0771880 B1 EP0771880 B1 EP 0771880B1
Authority
EP
European Patent Office
Prior art keywords
copper
chute
sheet
distributor chute
cooling
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
EP96112422A
Other languages
German (de)
English (en)
Other versions
EP0771880A1 (fr
Inventor
Hartmut Ing. Hille
Werner Ing. Otremba
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.)
SMS Siemag AG
Original Assignee
SMS Demag 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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP0771880A1 publication Critical patent/EP0771880A1/fr
Application granted granted Critical
Publication of EP0771880B1 publication Critical patent/EP0771880B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/18—Bell-and-hopper arrangements
    • C21B7/20—Bell-and-hopper arrangements with appliances for distributing the burden

Definitions

  • the invention relates to a distribution chute for a bellless blast furnace coating system with an outer jacket made of steel, an interior paneling made of abrasion-resistant material and with cooling water connections on the chute holder to supply the lower part of the chute with cooling water.
  • Blast furnaces especially large blast furnaces, as well as by corresponding renovation of modernized small furnaces, are operated today in the counter pressure process.
  • DE 20 35 458 describes a bellless shaft furnace inspection known, alternately by the blast furnaces through two or more inspection locks over one in the blast furnace head below an outlet funnel arranged, rotating distribution chute with bulk material be loaded.
  • the Möller is over an adjustable pouring device fed to the inspection locks. These are on their inlets and outlets with suitable sealing and Butterfly valves are provided in the payment cycle be opened or closed.
  • the Möller is led into a storage vessel and from this by a vertical, fixed Inlet of the rotatable and arranged in the furnace head angle-adjustable distribution chute.
  • a distributor chute is known from DE 26 29 782, which is a semi-tubular, made of heat-resistant steel manufactured jacket with a material outlet channel and has a material impact element.
  • the distribution chute holder consists of two duckbills Cramps.
  • the distribution chute is covered on the inside from individual wear parts, which are scale-like are nested within each other.
  • a double floor Cavity provided at those points of the outer jacket, which are most exposed to heat radiation are. This cavity is created by the Attach an outer protective jacket, which is over the whole part exposed to heat radiation the chute length extends.
  • Cooler circulates a coolant which is supplied through a peripheral channel. This The channel receives the coolant by means of a transition line on the bracket of the distribution chute.
  • the outer jacket with an ff layer lined.
  • DE 44 30 265 A1 describes a distributor chute for Installation in an oven, especially for use in a bell-less blast furnace inspection system, known to have a chute body with a top and a bottom surface, the top surface being a Schurrenkanal forms and at least the bottom partially exposed to radiant heat in the oven.
  • the cooling medium is used to hold the ceramic plates flowed through hollow profiles in lateral grooves of the Ceramic plates can be engaged, with the hollow profiles through the ceramic plates are largely covered and have a circular cross-section.
  • the ceramic plates are between two in parallel, with one Intermediate distance on the chute body attached hollow profiles insertable.
  • the object of the invention was therefore to cool the known distribution chute of a large blast furnace improve the specific pig iron production too increase and minimize downtimes.
  • the distributor chute is a copper-clad steel sheet used that in the thickness of almost equal parts a steel base plate and a copper plate consists.
  • the cooling channels can also be curved, elliptical or in another rounded shape or diamond, triangular or in another straightforward form in the copper sheet be arranged.
  • the open cooling channels are along the entire length with segments made of thin copper sheet, which are approx. 25% the wall thickness of the copper layer of the clad Sheet, weld pressure-tight and form thereby a closed cooling channel, so that a Controlled cooling (forced cooling) of the distribution chute on the side facing the hot side.
  • the copper-clad sheet is the Distribution chute with a layer on the outside ff material (spray compound or gate locking material) against Heat radiation and the aggressive top gases in addition protected.
  • the invention is based on schematic Exemplary embodiments explained in more detail.
  • Fig. 1 shows the copper-clad steel sheet (5) cold forming into a so-called half-shell or semicircular trough.
  • the cold cooling water is supplied from the outside via a cooling water supply line (3) fed to the cooling channels (8), the heated water is discharged through the cooling water discharge line (4) dissipated.
  • a cooling water supply line (3) fed to the cooling channels (8), the heated water is discharged through the cooling water discharge line (4) dissipated.
  • Fig. 2 shows a section through the copper-clad Sheet steel (5) with the upper base plate (6) made of steel and the lower copper sheet (7) before cold working.
  • the copper sheet (7) according to Fig. 1st Cooling channels (8) incorporated, which are then continuous welded to a cooling duct cover (9) become.
  • holes (12) in the copper-clad Sheet steel (5) introduced.
  • Fig. 3 shows a cross section through the distribution chute (1) after cold working of the copper-clad Steel sheet (5) to a half-shell.
  • the wall of the distribution chute (1) is exposed four components together. Inside are by means of Fasteners (13) the wearing parts (11) in Bores (12) on the base plate (6) and copper plate (7) attached. The side of the copper-clad sheet (5) is used to protect against Corrosion and radiant heat with one ff material (10) lined.
  • Fig. 4 shows a longitudinal section through the distributor chute (1) with the duckbill-shaped chute holder (2).

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Vertical, Hearth, Or Arc Furnaces (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Disintegrating Or Milling (AREA)
  • Crucibles And Fluidized-Bed Furnaces (AREA)

Claims (6)

  1. Goulotte de répartition pour une installation de chargement sans cloche pour le gueulard d'un haut fourneau, comprenant une enveloppe extérieure, un revêtement appliqué à l'intérieur en matériau résistant à l'abrasion, et des raccords d'eau de refroidissement au niveau des supports de goulotte; pour alimenter la partie inférieure de la goulotte de répartition avec de l'eau de refroidissement, caractérisée en ce que l'enveloppe extérieure de la goulotte de répartition (1) est réalisée sous la forme d'une tôle d'acier (5) plaquée de cuivre, comprenant une tôle de base (6) en acier et une tôle de cuivre (7), et en ce que des canaux de refroidissement (8) sont ménagés dans la tôle de cuivre (7) de la tôle d'acier (5) plaquée de cuivre.
  2. Goulotte de répartition selon la revendication 1, caractérisée en ce que les canaux de refroidissement (9) dans la tôle de cuivre (7) sont pourvus d'une couverture (9).
  3. Goulotte de répartition selon les revendications 1 et 2, caractérisée en ce que les canaux de refroidissement (8) sont agencés sous forme de méandres dans la tôle de cuivre (7), et ce que les canaux de refroidissement s'étendent en direction longitudinale et en direction transversale par rapport à l'axe de la goulotte de répartition (1).
  4. Goulotte de répartition selon les revendications 1 et 2, caractérisée en ce que les canaux de refroidissement (8) sont ménagés dans la tôle de cuivre (7) en forme d'arc, d'ellipse, ou sous une autre forme arrondie.
  5. Goulotte de répartition selon les revendications 1 et 2, caractérisée en ce que les canaux de refroidissement (8) sont ménagés dans la tôle de cuivre (7) en forme de losange, de triangle, ou sous une autre forme rectiligne.
  6. Goulotte de répartition selon les revendications 1 à 3, caractérisée en ce qu'un matériau réfractaire (10) est appliqué à l'extérieur sur la tôle d'acier (5) plaquée de cuivre.
EP96112422A 1995-10-31 1996-08-01 Goulotte de distribution pour une installation d'alimentation sans cloche Expired - Lifetime EP0771880B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19540504 1995-10-31
DE19540504A DE19540504C1 (de) 1995-10-31 1995-10-31 Verteilerschurre für glockenlose Begichtungsanlage

Publications (2)

Publication Number Publication Date
EP0771880A1 EP0771880A1 (fr) 1997-05-07
EP0771880B1 true EP0771880B1 (fr) 2001-10-04

Family

ID=7776235

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96112422A Expired - Lifetime EP0771880B1 (fr) 1995-10-31 1996-08-01 Goulotte de distribution pour une installation d'alimentation sans cloche

Country Status (5)

Country Link
EP (1) EP0771880B1 (fr)
AT (1) ATE206468T1 (fr)
DE (2) DE19540504C1 (fr)
ES (1) ES2166419T3 (fr)
PT (1) PT771880E (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
LU91653B1 (en) * 2010-02-19 2011-08-22 Wurth Paul Sa Distribution chute for a charging device of a metallurgical reactor

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1476181A (fr) * 1966-04-15 1967-04-07 Ts Nautchno I I Tchornoy Metal Lingotière pour la coulée continue des métaux, et procédé de fabrication de cette lingotière
LU59207A1 (fr) * 1969-07-31 1969-12-10 Wurth Anciens Ets Paul
LU73021A1 (fr) * 1975-07-18 1976-03-02
LU88396A1 (de) * 1993-08-25 1995-03-01 Wurth Paul Sa Verteilerschurre fuer Schuettgut
LU88399A1 (de) * 1993-09-01 1995-04-05 Wurth Paul Sa Verteilerschurre zum Einbau in einen Ofen

Also Published As

Publication number Publication date
DE19540504C1 (de) 1996-11-28
DE59607815D1 (de) 2001-11-08
ES2166419T3 (es) 2002-04-16
EP0771880A1 (fr) 1997-05-07
PT771880E (pt) 2002-03-28
ATE206468T1 (de) 2001-10-15

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