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WO2009037508A1 - Dispositif de charge amélioré pour haut-fourneau - Google Patents

Dispositif de charge amélioré pour haut-fourneau Download PDF

Info

Publication number
WO2009037508A1
WO2009037508A1 PCT/GB2008/050842 GB2008050842W WO2009037508A1 WO 2009037508 A1 WO2009037508 A1 WO 2009037508A1 GB 2008050842 W GB2008050842 W GB 2008050842W WO 2009037508 A1 WO2009037508 A1 WO 2009037508A1
Authority
WO
WIPO (PCT)
Prior art keywords
conduit
charging
blast furnace
vertical
sections
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.)
Ceased
Application number
PCT/GB2008/050842
Other languages
English (en)
Inventor
Ian Craig
Jeremy Fletcher
Gareth Kaps
Neil Millington
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.)
Primetals Asset Management UK Ltd
Original Assignee
Siemens VAI Metals Technologies Ltd
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 Siemens VAI Metals Technologies Ltd filed Critical Siemens VAI Metals Technologies Ltd
Publication of WO2009037508A1 publication Critical patent/WO2009037508A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories or equipment specially adapted for furnaces of these types
    • F27B1/20—Arrangements of devices for charging
    • 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
    • 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
    • F27D3/0033—Charging; Discharging; Manipulation of charge charging of particulate material
    • 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
    • F27D3/10—Charging directly from hoppers or shoots

Definitions

  • the present invention concerns a device and method for distributing material during the charging of a blast furnace.
  • WO2006056350 discloses a system in which the charging material enters the furnace through a conical conduit suspended on gimbals. By this arrangement, the orientation of the conduit may be varied allowing distribution of the material within the furnace and more even wear on the internal surfaces of the conduit.
  • the object of the invention is to provide a conduit for charging blast furnaces which offers improved material flow and trajectory characteristics.
  • a conduit for charging a blast furnace comprises the features set out in claim 1 attached hereto.
  • figure 1 shows a conduit for charging a blast furnace according to the prior art
  • figures 2 - 4 show various embodiments of a conduit for charging a blast furnace according to the invention.
  • a conduit 1 for charging a blast furnace (not shown) according to the prior art has a substantially frusto-conical profile.
  • the conduit is inclined according to a desired trajectory of material entering the furnace.
  • the charging material falls into the conduit, strikes the inner surface of the conduit at a point 2 and travels along its wall under gravity in a path indicated by the arrows.
  • trajectory of material entering the furnace increases with the angle A, between the direction of the material on exiting the funnel and the vertical 3, up to a limit dependant on the charge material properties and conduit construction.
  • the trajectory also increases with the velocity of the material on exiting the funnel.
  • the angle A is determined by (equals) the angle B between the vertical and the side 4 of the conduit along which the material travels (B depends on the cone angle and the degree of inclination of the cone).
  • one example of a conduit for a blast furnace according to the present invention includes two substantially frusto-conical sections 5 and 6 providing for two angles, B and C between surfaces 4, 7 of the conduit along which material passes (or their projection), and the vertical 3.
  • section 6 is shown as a frustro cone having a smaller cone angle than section 5. In the extreme, section 6 could be cylindrical.
  • FIG. 2 The region around point 2 in figure 2 is an area of increased wear on the conduit and the same is true of the region around point 8 when section 6 is not cylindrical.
  • Figure 3 illustrates how this wear can be reduced or spread by increasing the number of frusto- conical sections in the device. In the example shown, three sections 5, 6 and 9 give rise to three changes in direction of the charging material at points 2, 8 and 10 respectively. It will be apparent, however that further increasing the number of frusto-conical sections will further distribute the wear along the surface of the conduit.
  • Figure 4 illustrates the limiting example where the profile of the conduit surface is a curve and the direction of the charging material changes continuously from a first direction forming a relatively small angle C with the vertical and a second direction forming a relatively large angle with the vertical.
  • the conduit is preferably mounted on gimbal or other type of universal joint which allows the conduit to be directed towards different areas of the blast furnace without rotation (of the conduit). This arrangement provides for a more evenly distributed wear pattern around the internal surface of the conduit.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Blast Furnaces (AREA)

Abstract

L'invention porte sur un conduit pour charger un haut-fourneau, lequel conduit comporte un conduit comportant une ou plusieurs sections tronconiques pour diriger un matériau de charge dans le haut-fourneau, et emploie un élément du type à saut de ski sur la goulotte pour obtenir une trajectoire de matériau de charge améliorée après que celui-ci a quitté le conduit. Le conduit est monté sur un cardan ou sur un autre type de joint articulé qui permet la direction du conduit vers différentes zones à l'intérieur du haut-fourneau sans rotation.
PCT/GB2008/050842 2007-09-19 2008-09-19 Dispositif de charge amélioré pour haut-fourneau Ceased WO2009037508A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0718168A GB2452917A (en) 2007-09-19 2007-09-19 Curved Blast Furnace Chute
GB0718168.8 2007-09-19

Publications (1)

Publication Number Publication Date
WO2009037508A1 true WO2009037508A1 (fr) 2009-03-26

Family

ID=38670079

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2008/050842 Ceased WO2009037508A1 (fr) 2007-09-19 2008-09-19 Dispositif de charge amélioré pour haut-fourneau

Country Status (2)

Country Link
GB (1) GB2452917A (fr)
WO (1) WO2009037508A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012016818A1 (fr) 2010-08-06 2012-02-09 Paul Wurth S.A. Goulotte de distribution
CN108350514A (zh) * 2015-10-28 2018-07-31 株式会社Posco 熔炼炉装料装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101875148B1 (ko) * 2016-12-13 2018-07-06 주식회사 포스코 장입 장치

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5668785A (en) * 1979-11-06 1981-06-09 Ishikawajima Harima Heavy Ind Material charging method of and apparatus for vertical furnace
SU870435A1 (ru) * 1979-12-04 1981-10-07 Днепропетровский Завод Металлургического Оборудования Распределитель шихты загрузочного аппарата доменной печи
JPS5931807A (ja) * 1982-08-13 1984-02-21 Nippon Steel Corp ベルレス炉頂装入装置の炉内旋回シユ−ト
WO2006056350A1 (fr) * 2004-11-26 2006-06-01 Siemens Vai Metals Technologies Ltd. Dispositif de distribution d'un materiau dans un four

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2230246A5 (en) * 1973-05-16 1974-12-13 Delattre Levivier Rotating chute charger for blast or shaft furnaces - with all working parts sealed in annular chamber for protection against hot gas and dust
SU603664A1 (ru) * 1976-03-05 1978-04-04 Днепропетровский Ордена Трудового Красного Знамени Металлургический Институт Лоток загрузочного устройства шахтной печи
ITGE20030033A1 (it) * 2003-05-14 2004-11-15 Sms Demag S P A Reattore siderurgico per la produzione di ghisa.
EP1765971A4 (fr) * 2004-06-12 2009-07-01 Iron Mount Corp Procede et appareil permettant d'executer un processus metallurgique

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5668785A (en) * 1979-11-06 1981-06-09 Ishikawajima Harima Heavy Ind Material charging method of and apparatus for vertical furnace
SU870435A1 (ru) * 1979-12-04 1981-10-07 Днепропетровский Завод Металлургического Оборудования Распределитель шихты загрузочного аппарата доменной печи
JPS5931807A (ja) * 1982-08-13 1984-02-21 Nippon Steel Corp ベルレス炉頂装入装置の炉内旋回シユ−ト
WO2006056350A1 (fr) * 2004-11-26 2006-06-01 Siemens Vai Metals Technologies Ltd. Dispositif de distribution d'un materiau dans un four

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 198233, Derwent World Patents Index; AN 1982-69581E, XP002502407 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012016818A1 (fr) 2010-08-06 2012-02-09 Paul Wurth S.A. Goulotte de distribution
CN103052721A (zh) * 2010-08-06 2013-04-17 保尔伍斯股份有限公司 分配斜槽
CN103052721B (zh) * 2010-08-06 2014-06-04 保尔伍斯股份有限公司 分配斜槽
RU2570258C2 (ru) * 2010-08-06 2015-12-10 Поль Вурт С.А. Распределительный желоб
CN108350514A (zh) * 2015-10-28 2018-07-31 株式会社Posco 熔炼炉装料装置

Also Published As

Publication number Publication date
GB2452917A (en) 2009-03-25
GB0718168D0 (en) 2007-10-31

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