EP3421619B1 - Couvercle d'aspiration d'un capuchon de poussière de convertisseur - Google Patents

Couvercle d'aspiration d'un capuchon de poussière de convertisseur Download PDF

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Publication number
EP3421619B1
EP3421619B1 EP18179501.4A EP18179501A EP3421619B1 EP 3421619 B1 EP3421619 B1 EP 3421619B1 EP 18179501 A EP18179501 A EP 18179501A EP 3421619 B1 EP3421619 B1 EP 3421619B1
Authority
EP
European Patent Office
Prior art keywords
cover according
rotating shutter
shaft
cover
movable doors
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.)
Active
Application number
EP18179501.4A
Other languages
German (de)
English (en)
Other versions
EP3421619A1 (fr
Inventor
Konstantin Valerievich BULATOV
Andrey Faritovich Ibragimov
Ilfat Ildusovich ISKHAKOV
Sergei Aleksandrovich LEPIN
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.)
OBSCHESTVO S OGRANICHENNOI OTVETSTVENNOSTYU "MEDNOGORSKY MEDNO-SERNY KOMBINAT"
Original Assignee
Obschestvo S Ogranichennoi Otvetstvennostyu "mednogorsky Medno Serny Kombinat"
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Publication of EP3421619A1 publication Critical patent/EP3421619A1/fr
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Publication of EP3421619B1 publication Critical patent/EP3421619B1/fr
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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
    • 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
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B15/00—Obtaining copper
    • C22B15/0026—Pyrometallurgy
    • C22B15/0028—Smelting or converting
    • C22B15/003—Bath smelting or converting
    • C22B15/0041—Bath smelting or converting in converters
    • 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
    • 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
    • F27D17/002—Details of the installations, e.g. fume conduits or seals

Definitions

  • the invention relates to metallurgy and more particularly to fume and dust extraction devices.
  • the prior art most closely related to the present invention is a converter cover and a dust cap disclosed in Inventor's Certificate SU 466290 .
  • the cover comprises a movable shutter formed by two (right and left) front walls, an inclined rotating shutter with brakes for retaining the same and rotation mechanisms, two stationary sidewalls and two side flues.
  • the dust cap is separated from the shelter by a sectional plate.
  • the rotation mechanism of the inclined shutter comprises two double-armed levers, one arm of each lever being connected to a drive, and the other to a counterweight.
  • the cover does not provide a sufficient efficiency of fume and dust extraction because in blowing position of the converter fumes are trapped from a large space covered by two front moving walls, and a great amount of aspiration fumes is captured.
  • the technical problem to be solved by the present invention is the low efficiency of collecting uncontrolled emissions of dusty aspiration fumes from under the converter dust cap.
  • the object of the invention is to maximize the collection of uncontrolled emissions of dusty aspiration fumes from under the converter dust cap.
  • the invention is defined by claim 1.
  • the body can be made up of vertical, horizontal and inclined panels.
  • the panels can be made of steel.
  • the panel can comprise a rectangular angle-framed sheet
  • the joints between the panels can be sealed with an asbestos cord.
  • the rotating shutter can comprise a ribbed fire sheet.
  • the cover can comprise a first shaft and a counterweight, said rotating shutter being connected to the first shaft that is connected to the rotating shutter drive on one side and to the counterweight on the other side.
  • the rotating shutter can be welded to the first shaft.
  • the first shaft can be connected to the counterweight through a block and tackle system.
  • the first shaft can be connected to the rotating shutter drive via a lever.
  • the first shaft can be mounted in bearing housings.
  • the housings of bearings can be adapted to be secured to a dust cap frame.
  • the gas flue can be disposed in the upper part of the body.
  • the movable doors can be supported by rollers.
  • the movable doors drive can comprise a second shaft with sprockets mounted thereon, the sprockets being engaged with a chain that is secured on the vertical part of the movable doors.
  • the inventive arrangement of the movable doors at an angle of 120-130° to each other and the rotation ability of the shutter at an angle of up to 25° are chosen in view of supposed uncontrolled emission and enable collection and evacuation of aspiration fumes during both tapping operation and blowing operation of the converter, thereby maximizing the collection of uncontrolled emissions of dusty aspiration fumes from under the convertor dust cap.
  • the rotating shutter of the aspiration cover operates in conjunction with a rotary lid of the dust cap and the movable doors, forming together a general aspiration system.
  • the inventive device ensures the compliance with all safety requirements to the convertor operation.
  • Aspiration cover of a dust cap 4 of a converter 5 is adapted to be mounted on a dust cap frame 6 and comprises a body 1, a rotating shutter 1 and movable doors 2.
  • the movable doors 2 comprise a vertical part 12 and an inclined 13 part, which are pivotally connected at an angle of 120-130° to each other, supported by rollers 15 and have a movable doors drive 16, in this case a motor reducer.
  • Sprockets are mounted on a second shaft of the movable doors drive 2 in engagement with a chain that is secured on the vertical part 12 of the movable doors 2.
  • the aspiration cover In assembled state, the aspiration cover is mounted on a dust cap frame 6 of the converter 5 directly above it.
  • the rotating shutter 3 is disposed over the mouth of the converter 5 on the service passage side.
  • the aspiration cover body 1 is made up of steel panels arranged vertically, horizontally and obliquely.
  • a panel comprises a preferably rectangular angle-framed sheet that serves as a flange to attach to the other panels forming the body 1 by means of metal items.
  • Flues 7 are cut in the upper part of the aspiration cover body 1 on both sides for withdrawal of aspiration fumes, which are then conveyed to a gas cleaning section.
  • Design of the flues 7 takes into account the aggressive atmosphere of fumes, their abrasive nature, amounts and the compliance with all safety requirements.
  • the rotating shutter 3 comprises a fire sheet reinforced with ribs and welded to a first shaft 10.
  • the first shaft 10 is connected, via a lever, to a rotating shutter drive 8 on one side and, via a block and tackle system, to a counterweight 11 on the other side.
  • the first shaft 10 of the rotating shutter 3 is mounted in bearing housings 9, which are secured to the dust cap frame 6 by means of racks.
  • the dust cap frame 6 is a welded metal structure consisting of T-beams fastened together by ties.
  • the beams are mounted on columns that are secured to foundation.
  • the rotating shutter drive 8 is designed to rotate the rotating shutter 3 in the process and repair operations at an angle of up to 25°.
  • the rotating shutter drive 8 can be also based on a motor reducer. End switches turn off the rotating shutter drive 8 at extreme positions of the rotating shutter 3.
  • a restraint element is mounted on the dust cap frame 6 on the service passage side.
  • the movable aspiration doors 2 comprise a composite structure including bearing metal structures 14 such as supports and beams, on which movable steel panels of the vertical 12 and inclined 13 parts of the movable doors 2 are mounted on the front of the converter 5.
  • a fume cleaning area is disposed eastwards of a copper smelting shop.
  • the area comprises bag filters, smoke exhausters, compressors disposed in a separate building, and a flue extending from the point of cutting into a fume collector at the exit of the copper smelting shop to the existing chimney shaft.
  • the device works in the following manner.
  • the vertical 12 and inclined 13 parts of the movable doors 2 are pivotally connected at an angle and supported by rollers 15, on which they are moving when the movable doors drive 16 is turned on.
  • a chain is secured on the vertical panels 2, and movable doors drives 16 with sprockets mounted on drive shafts are installed on rigidly fixed beams. As the sprockets rotate, the chain is advanced and, accordingly, the chain moves the panel in the direction of closing and opening.
  • a limit switch issues end-of-motion command.
  • the area, where a ladle for tapping slag and molten metal is disposed, is closed by the movable doors 2 and the rotating shutter 3 for the time of tapping and rotating the converter 5.
  • the lid of the dust cap 4 is elevated at angle 120° towards the restraint element, the movable doors 2 are opened and the rotating shutter 3 of the aspiration cover is lowered to its lowest position.
  • a cover is a body having a rectangular section of 4300x5300x4100.
  • the aspiration cover body comprises 31 steel panels arranged vertically, horizontally and obliquely.
  • a flue has a diameter of 800 mm.
  • a fire sheet measures 4050x4325 mm, and a first shaft has a diameter of 150 mm.
  • Vertical part of the movable doors has a size of 4600x5400 mm, and inclined part has a size of 3350x3450 mm.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Prevention Of Fouling (AREA)
  • Chimneys And Flues (AREA)
  • Motor Or Generator Frames (AREA)

Claims (15)

  1. Couvercle d'aspiration d'un cache anti-poussière de convertisseur (4), dans lequel le couvercle est adapté pour être monté sur un cadre (6) du cache anti-poussière de convertisseur (4) et comprend un boîtier (1), un volet rotatif (3) et des portes mobiles (2), le boîtier (1) étant doté d'un conduit de gaz (7), dans lequel le volet rotatif (3) présente un entraînement de volet rotatif (8) et
    caractérisé en ce que
    le volet rotatif (3) peut tourner selon un angle pouvant atteindre 25°, et les portes mobiles comprennent une partie verticale (12) et une partie inclinée (13) connectées de manière pivotante selon un angle de 120-130° l'une à l'autre et présentant un entraînement de portes mobiles (16).
  2. Couvercle selon la revendication 1, caractérisé en ce que le boîtier (1) comprend des panneaux verticaux, horizontaux et inclinés.
  3. Couvercle selon la revendication 2, caractérisé en ce que les panneaux sont faits d'acier.
  4. Couvercle selon la revendication 2, caractérisé en ce que le panneau comprend une feuille à cadre en cornières rectangulaire.
  5. Couvercle selon la revendication 2, caractérisé en ce que les jonctions entre les panneaux sont scellées avec un cordon en amiante.
  6. Couvercle selon la revendication 1, caractérisé en ce que le volet rotatif (3) comprend une feuille ignifuge nervurée.
  7. Couvercle selon la revendication 1, caractérisé en ce que le couvercle comprend une première tige (10) et un contrepoids (11), dans lequel ledit volet rotatif (3) est connecté à la première tige (10), qui est connectée à l'entraînement de volet rotatif (8) d'un côté et au contrepoids (11) de l'autre côté.
  8. Couvercle selon la revendication 7, caractérisé en ce que le volet rotatif (3) est soudé à la première tige (10).
  9. Couvercle selon la revendication 7, caractérisé en ce que la première tige (10) est connectée au contrepoids (11) par l'intermédiaire d'un système de palan.
  10. Couvercle selon la revendication 7, caractérisé en ce que la première tige (10) est connectée à l'entraînement de volet rotatif (8) par l'intermédiaire d'un levier.
  11. Couvercle selon la revendication 7, caractérisé en ce que la première tige (10) est montée dans des boîtier de palier (9).
  12. Couvercle selon la revendication 11, caractérisé en ce que les boîtier de palier (9) sont adaptés pour être fixés à un cadre de cache anti-poussière (6).
  13. Couvercle selon la revendication 1, caractérisé en ce que le conduit de gaz (7) est disposé dans la partie supérieure du boîtier (1).
  14. Couvercle selon la revendication 1, caractérisé en ce que les portes mobiles (2) sont supportées par des galets (15).
  15. Couvercle selon la revendication 1, caractérisé en ce que l'entraînement de portes mobiles (16) comprend une seconde tige avec des pignons montés sur celle-ci, les pignons étant en prise avec une chaîne qui est fixée sur la partie verticale des portes mobiles (2).
EP18179501.4A 2017-06-28 2018-06-25 Couvercle d'aspiration d'un capuchon de poussière de convertisseur Active EP3421619B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2017122725A RU2649621C1 (ru) 2017-06-28 2017-06-28 Аспирационное укрытие напыльника конвертера

Publications (2)

Publication Number Publication Date
EP3421619A1 EP3421619A1 (fr) 2019-01-02
EP3421619B1 true EP3421619B1 (fr) 2020-04-29

Family

ID=61867148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18179501.4A Active EP3421619B1 (fr) 2017-06-28 2018-06-25 Couvercle d'aspiration d'un capuchon de poussière de convertisseur

Country Status (4)

Country Link
EP (1) EP3421619B1 (fr)
CL (1) CL2018001764A1 (fr)
EA (1) EA036238B1 (fr)
RU (1) RU2649621C1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113532131A (zh) * 2021-07-09 2021-10-22 中国恩菲工程技术有限公司 底吹精炼炉烟罩和底吹精炼炉

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1417588A (en) * 1917-07-21 1922-05-30 American Smelting Refining Converter hood
US3494763A (en) * 1966-01-17 1970-02-10 Yawata Seitetsu Kk Process for discharging unburned waste gas from oxygen top-blowing converter
SU466290A1 (ru) * 1974-06-11 1975-04-05 Государственный Институт По Проектированию Предприятий Цветной Металлургии "Гипроцветмет" Укрытие конвертера и напыльника
US4253644A (en) * 1978-12-04 1981-03-03 Inland Steel Company Fluid closure for and method of preventing flow through an opening in a fluid and particulate confining and conveying structure
SU1027226A1 (ru) * 1981-04-08 1983-07-07 Всесоюзный Научно-Исследовательский И Проектный Институт По Очистке Технологических Газов,Сточных Вод И Использованию Вторичных Энергоресурсов Предприятий Черной Металлургии "Внипичерметэнергоочистка" Сталеплавильный агрегат
RU2048535C1 (ru) * 1992-07-16 1995-11-20 Карагандинский металлургический комбинат Устройство для улавливания отходящих из конвертера газов
UA82619C2 (uk) * 2007-01-15 2008-04-25 Украинский Государственный Научно-Техничный Центр Технологии И Оборудования, Обработки Металлов, Защиты Окружающей Среды И Использования Вторичных Ресурсов Для Металлургии И Машиностроения "Энергосталь" Пристрій для уловлювання неорганізованих викидів з металургійного агрегату
CN205035423U (zh) * 2015-09-28 2016-02-17 云南铜业股份有限公司 一种处理卧式转炉逸散烟气的集烟装置

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
EA201891231A3 (ru) 2019-02-28
CL2018001764A1 (es) 2019-02-15
RU2649621C1 (ru) 2018-04-04
EP3421619A1 (fr) 2019-01-02
EA036238B1 (ru) 2020-10-16
EA201891231A2 (ru) 2019-01-31

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