EP3183371A1 - Installation de briquetage à chaud - Google Patents

Installation de briquetage à chaud

Info

Publication number
EP3183371A1
EP3183371A1 EP15723016.0A EP15723016A EP3183371A1 EP 3183371 A1 EP3183371 A1 EP 3183371A1 EP 15723016 A EP15723016 A EP 15723016A EP 3183371 A1 EP3183371 A1 EP 3183371A1
Authority
EP
European Patent Office
Prior art keywords
presses
roller
cooling conveyor
press
roller presses
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
EP15723016.0A
Other languages
German (de)
English (en)
Other versions
EP3183371B1 (fr
Inventor
Christopher SCHÄFER
Eggert De Weldige
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.)
Maschinenfabrik Koeppern GmbH and Co KG
Original Assignee
Maschinenfabrik Koeppern GmbH and Co KG
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 Maschinenfabrik Koeppern GmbH and Co KG filed Critical Maschinenfabrik Koeppern GmbH and Co KG
Publication of EP3183371A1 publication Critical patent/EP3183371A1/fr
Application granted granted Critical
Publication of EP3183371B1 publication Critical patent/EP3183371B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/0086—Conditioning, transformation of reduced iron ores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/0005—Details of, or accessories for, presses; Auxiliary measures in connection with pressing for briquetting presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/32—Discharging presses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/34—Heating or cooling presses or parts thereof
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • 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
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/24—Binding; Briquetting ; Granulating

Definitions

  • the invention relates to a system for hot briquetting or hot compacting, in particular directly reduced iron, with at least one press line with one or more roller presses and with at least one cooling conveyor which is arranged below the press line.
  • Direct reduced iron or DRI is also known as sponge iron or sponge iron. It is produced by direct reduction of iron ore. Thereafter, a further processing of the directly reduced iron by hot briquetting or hot compacting done.
  • the invention preferably relates to a plant for hot briquetting, in which the directly reduced iron is compacted into briquettes in one or more roller presses designed as briquetting presses, which are then suitable for transport or storage, for example.
  • the briquettes usually emerge in one strand from the press, so that the press is then followed by a "separating device", which separates the briquettes connected in a strand from each other.
  • the invention also relates to a system for hot compacting.
  • prereduced or completely directly reduced iron is also pressed in a roller press, but not to briquettes, but it takes place
  • This strand of material is then divided, so that the material is finally in the form of granules, which is usually processed immediately, for. B. in a further reduction process or in an immediately subsequent melting furnace.
  • the material emerging from the presses has very high temperatures
  • the material in particular if it is in the form of briquettes, is first delivered to cooling conveyors, on or in which the material is flowed around by a cooling medium, for.
  • a cooling medium for.
  • a cooling liquid eg., Water
  • a cooling gas e.g., a cooling gas
  • Such a system for hot briquetting of directly reduced iron of the type described above is z. B. from WO 00/55379 A1.
  • the known system has z. B. four roller presses or four briquetting lines connected in parallel, which are each fed from a storage bin on "Feedlegs" with feinteilchenförmigem sponge iron. Between each two Brikettierlinien or roller presses a bucket elevator and consequently a transport device for the return of fine particles is provided, which are separated with sieving below the briquetting presses from the product. For every two briquetting lines or roller presses, a cooling conveyor belt is provided for cooling and discharging the briquettes.
  • hot briquetting presses are located under a briquetting feed bunker. They deliver the sponge iron in briquette form in screening, cooling and conveying systems.
  • directly reduced iron can be delivered via feed lines optionally briquetting presses or directly to transport devices. For this purpose, a material switch is arranged above the roller presses.
  • EP 2 641 981 A2 describes a plant for the production of molten iron from directly reduced iron, wherein the directly reduced iron is compacted in compacting presses and then comminuted.
  • the material emerging from the compacting presses or from the comminutor can either be fed to a melting furnace via a first conveyor or stored in storage containers via a second conveyor. Switches are therefore arranged under the crushers, so that the material can optionally be delivered to the first conveyor to the melting furnace or to the second conveyor to the storage container.
  • directly reduced iron is always the need to optimize the capacity.
  • safety considerations in the design of the system in the foreground When processing hot material from directly reduced iron, for example, a reliable removal of the briquettes with simultaneous cooling must be ensured, even if parts of the system fail. - This is where the invention starts.
  • the invention is based on the object of a system for hot briquetting or hot compacting, especially of directly reduced iron, too
  • the invention teaches a system for hot briquetting or hot compacting, in particular directly reduced iron, with at least one press line with one or more roller presses, with at least a first cooling conveyor and a second cooling conveyor below the press line and with several, each den individual roller presses associated material lines through which the briquetted or compacted material is discharged from the roller presses on the cooling conveyor, the material lines are equipped with one or more switches, which are adjustable so that the material of the roller presses either on the first cooling conveyor or on the second cooling conveyor is discharged.
  • two cooling conveyors are provided, which are each designed so that they can individually absorb and discharge the material from the roll presses.
  • z. B. in case of failure of a cooling conveyor, there is the possibility with the help of the switches to request the (entire) material on the other, ready to operate cooling conveyor.
  • the presses in several press rows, z. B. a first press line and a second press line, wherein the first cooling conveyor below the first press line and the second cooling conveyor below the second press line is arranged and wherein the switches are adjustable so that the material of the roller presses of the first press line and the second press line can be dispensed selectively on either the first cooling conveyor or the second cooling conveyor.
  • the first press line several on a line, z. B. straight line one behind the other arranged first roller presses and the second press line has several on a line, z. B. straight line one behind the other arranged second roller presses, wherein in each case two paired juxtaposed roller presses from the first press line on the one hand and the second press line on the other hand, a switch is associated.
  • the invention is based on the generally known knowledge that the capacity of such a system by the use of a variety of roller presses, z. B. at least four roll presses, preferably at least six roller presses, can increase.
  • the roll presses are arranged in at least two rows of presses.
  • this arrangement in two rows of presses has the advantage that the feed lines arranged above the roll presses can be arranged at a steeper angle for the same number of presses than if the same number of presses is arranged in one single press line as the angle of the feedlegs to
  • each of the two rows of presses with a cooling conveyor, so that in normal operation the material of the first press line is delivered to the one cooling conveyor (eg the first cooling conveyor) and the second press line material to the other cooling conveyor (eg the second cooling conveyor) is dispensed.
  • the switches provided according to the invention now permit variable operation, in particular in the event of a fault. If one of the cooling conveyors fails, it is possible with the aid of the switches to dispense both the material of the first press line and the material of the second press line onto only one of the cooling conveyors, that is to say either the first cooling conveyor or the second cooling conveyor.
  • the two cooling conveyors are each designed so that they can individually record and transport all the material of the system individually.
  • the cooling conveyors are therefore adapted to the total plant capacity. It is expedient if each cooling conveyor can individually record each more than the material of a single press line. Thus, a total of even with failure of a cooling conveyor, the production can be continued with two rows of presses, since the then still in operation cooling conveyor is dimensioned so that the entire material can be conveyed away.
  • the press row or each press row has at least two roll presses, preferably in each case three roll presses. It is in several rows of presses also in the context of the invention that the press rows have a different number of roller presses, z. B. the first press line three roll presses and the second press line four roll presses, it is advantageous if two roll presses from each of the first press line and the second press line are arranged in pairs next to each other. According to a further proposal of the invention it is provided that below the roller presses sieves for separating fines (“hot fines”) are arranged, these fines can be recycled with one or more transport devices to the briquette presses. The points are again arranged under the sieves.
  • Transport devices are known in principle, they can be designed as so-called "bucket elevators".
  • the invention preferably proposes that these transport devices, for. B. bucket elevators, are arranged between the press rows.
  • these transport devices for. B. bucket elevators
  • at least one transport device for. B. a bucket elevator, is arranged.
  • the arrangement is characterized by a high degree of security, since a material cooling is ensured even in case of failure of a cooling conveyor. On an uneconomical emergency emptying, which would be conceivable in principle, can therefore be waived.
  • a plant which is characterized by its compact construction and high production capacity and availability.
  • the system is characterized among other things by a small tower height
  • FIG. 1 shows a plant according to the invention for hot briquetting of directly reduced iron in a simplified plan view
  • Fig. 2 shows the object according to Fig. 1 in a simplified view from the direction of arrow A and
  • FIG. 3 shows the object according to FIG. 1 in a simplified view from the direction of the arrow B.
  • Fig. 4 shows a modified embodiment of the invention in a simplified representation.
  • the directly reduced iron is z. B. made of pellets and / or lump, with a direct reduction is carried out with gas. Details of the production of the directly reduced iron are not shown in the figures.
  • the directly reduced iron is supplied from the direction of the arrow X.
  • the plant shown in the figures for hot briquetting has a first press line 1 with a plurality of first roll presses 2 and a second press line 3 with a plurality of roll presses 4.
  • the directly reduced iron is supplied from the direction of the arrow X via supply lines 5, which are also referred to as "feedlegs".
  • a comparative examination of FIGS. 2 and 3 shows that a Feedleg 5 is provided for each roller press.
  • the first press line 1 has three roll presses 2 arranged one behind the other and the second press line 3 also has three roll presses 4 arranged one behind the other.
  • roller presses 2, 4 the directly reduced iron is pressed into briquettes. There is the possibility that from the roller presses 2, 4 emerge directly individual briquettes.
  • a briquette strand to emerge from the roll presses 2, 4 first, and for the briquettes to be singulated below the roll presses with a suitable shredder 12. Then, the material (in the exemplary embodiment briquettes) passes through a plurality of material lines 6 to cooling conveyors 7, 8, which are arranged below the roll presses 2, 4.
  • the first cooling conveyor 7 is arranged below the first row of presses 1, while the second cooling conveyor 8 is arranged below the second row of presses 3.
  • the material lines 6 are equipped with switches 9. These switches 9 are designed and integrated into the material lines 6 such that the briquettes from the first press line 1 optionally on the
  • first cooling conveyor 7 or on the second cooling conveyor 8 can be discharged.
  • the briquettes from the second press line 3 can be dispensed selectively onto the second cooling conveyor 8 or onto the first cooling conveyor 7.
  • the plant In normal operation, the plant is operated so that the material from the roller presses 2 of the first press line 1 on a cooling conveyor, the first cooling conveyor 7, is discharged, while the material from the roller presses 4 of the second press line 3 on the other cooling conveyor, the second cooling conveyor 8, is delivered.
  • the switches 9 can be switched over in such a way that then all the material from both the roller presses 2 of the first press line 1 and from the roller presses 4 of the second press line 3 to only one cooling conveyor, z. B. the first cooling conveyor 7 or alternatively the second cooling conveyor 8 is discharged, depending on which conveyor is ready for use.
  • the system according to the invention is therefore characterized by a high level of reliability, because even if a cooling conveyor fails, it is ensured that the hot material is transported away without any problem, without requiring a plant stop or emergency emptying.
  • screens 10 for separating fine parts can be arranged below the roller presses 2, 4. These fines can then be returned with transport devices 1 1 back into the roll presses.
  • the switches 9 are arranged below the wires 10.
  • the sieves 10 are - as seen in Fig. 3 - inserted into the material lines 6. The material thus passes in each case from a roller press 2, 4 via the separating device 12 into a first part of the material line 6 and from there to the wire 10 and then the second part of the material pipe 6. This is followed by the switch 9 and in turn third part of the material line 6.
  • the transport devices 1 1 are formed in the embodiment as bucket elevators. It can be seen in the figures that these bucket elevators 1 1 are arranged between the press rows 1, 3. Each two roller presses is associated with a common transport device 1 1, so that each transport device 1 1 is positioned between two adjacent roller presses.
  • a modified embodiment of the invention is shown in which the roller presses 2 are arranged only in a single press line 1. Below this single press line 1, two cooling conveyors 7, 8 are arranged. As in the case of the embodiment according to FIGS. 1 to 3, the material from the roller presses 2 reaches the cooling conveyors 7, 8 via material lines 6. In turn, switches 9 are integrated into the material line 6, so that the material from the roller presses 2 is selectively applied to the first cooling conveyor 7 or on the second cooling conveyor 8 can be discharged. Also
  • This embodiment is therefore characterized by an increased level of reliability, since the material can be absorbed by the other cooling conveyor in case of failure of a cooling conveyor.
  • the switches 9 are formed as Y-switches. Details are not shown.
  • the invention optionally also includes embodiments with more than two rows of presses and / or more than two cooling conveyors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacturing & Machinery (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Geology (AREA)
  • Organic Chemistry (AREA)
  • Press Drives And Press Lines (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Tunnel Furnaces (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)
  • Manufacture Of Iron (AREA)

Abstract

L'invention concerne une installation de briquetage à chaud ou de compactage à chaud, en particulier de fer réduit directement, qui comprend une ou plusieurs premières rangées de presses (1) équipées d'une ou de plusieurs premières presses à rouleaux (2), et d'une ou de plusieurs deuxièmes rangées de presses (3) équipées d'une ou de plusieurs deuxièmes presses à rouleaux (4), au moins un premier convoyeur de refroidissement (7) disposé au-dessous de la première rangée de presses (1) et un deuxième convoyeur de refroidissement (8) disposé au-dessous de la deuxième rangée de presses (3) et plusieurs conduits de matière (6) qui sont associés respectivement aux presses à rouleaux (2, 4) individuelles et qui permettent d'amener aux convoyeurs de refroidissement (7, 8) la matière compactée ou briquetée qui sort des presses à rouleaux (2, 4). Les conduits de matière (6) sont équipés d'un ou de plusieurs dispositifs de séparation (9) qui sont réglables de telle sorte que la matière provenant des presses à rouleaux (2, 4) de la première rangée de presses (1) et la deuxième rangée de presses (3) est amenée au choix au premier convoyeur de refroidissement (7) ou au deuxième convoyeur de refroidissement (8).
EP15723016.0A 2014-08-20 2015-05-13 Installation de briquetage à chaud Active EP3183371B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014111906.1A DE102014111906A1 (de) 2014-08-20 2014-08-20 Anlage zum Heißbrikettieren
PCT/EP2015/060691 WO2016026589A1 (fr) 2014-08-20 2015-05-13 Installation de briquetage à chaud

Publications (2)

Publication Number Publication Date
EP3183371A1 true EP3183371A1 (fr) 2017-06-28
EP3183371B1 EP3183371B1 (fr) 2018-10-17

Family

ID=53181290

Family Applications (1)

Application Number Title Priority Date Filing Date
EP15723016.0A Active EP3183371B1 (fr) 2014-08-20 2015-05-13 Installation de briquetage à chaud

Country Status (9)

Country Link
US (1) US10214787B2 (fr)
EP (1) EP3183371B1 (fr)
KR (1) KR102396241B1 (fr)
CN (1) CN106605001B (fr)
CA (1) CA2955337C (fr)
DE (1) DE102014111906A1 (fr)
MX (1) MX2016017360A (fr)
RU (1) RU2685837C1 (fr)
WO (1) WO2016026589A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014111906A1 (de) * 2014-08-20 2016-02-25 Maschinenfabrik Köppern Gmbh & Co. Kg Anlage zum Heißbrikettieren
DE102022101419A1 (de) 2022-01-21 2023-07-27 Maschinenfabrik Köppern Gmbh & Co. Kg Vorrichtung zum Zerteilen eines Brikettstrangs

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3223203C1 (de) * 1982-06-22 1983-12-29 Thyssen AG vorm. August Thyssen-Hütte, 4100 Duisburg Verfahren und Anlage zur Herstellung bindemittelloser Heissbriketts
DE3806861C1 (en) 1988-03-03 1989-06-15 Man Gutehoffnungshuette Gmbh, 4200 Oberhausen, De Transport installation for hot iron sponge
AU674615B2 (en) * 1993-09-30 1997-01-02 Maschinenfabrik Koppern Gmbh & Co Kg Process for producing sponge iron briquettes from fine ore
DE19545985A1 (de) * 1995-12-09 1997-06-12 Metallgesellschaft Ag Verfahren zum Heißbrikettieren von körnigem Eisenschwamm
AT407258B (de) 1999-03-17 2001-02-26 Voest Alpine Ind Anlagen Vorrichtung zum herstellen von heissbrikettiertem metallschwamm, insbesondere heissbrikettiertem eisenschwamm
CN1325666C (zh) * 2002-12-21 2007-07-11 Posco公司 制造铁水的设备及其使用方法
EP1573076B1 (fr) * 2002-12-21 2008-05-21 Posco Appareil de fabrication de fers fondus par compactage a chaud de fers fins de reduction directe et d'additifs calcines, et procede mettant en oeuvre cet appareil
KR101118285B1 (ko) * 2004-10-19 2012-03-20 주식회사 포스코 분환원철 함유 환원체의 괴성체 제조 장치 및 이를 이용한용철제조장치
AU2005296406B2 (en) 2004-10-19 2009-12-10 Posco Apparatus for manufacturing compacted irons of reduced materials comprising fine direct reduced irons and apparatus for manufacturing molten irons using the same
US7938882B2 (en) 2007-04-02 2011-05-10 Midrex Technologies, Inc. Method and system for the supply of hot direct reduced iron for multiple uses
KR101187851B1 (ko) * 2010-11-19 2012-10-04 주식회사 포스코 용철제조장치 및 이를 이용한 용철제조방법
DE102014111906A1 (de) * 2014-08-20 2016-02-25 Maschinenfabrik Köppern Gmbh & Co. Kg Anlage zum Heißbrikettieren

Also Published As

Publication number Publication date
RU2685837C1 (ru) 2019-04-23
CA2955337A1 (fr) 2016-02-25
CN106605001B (zh) 2018-09-04
CA2955337C (fr) 2023-01-10
US20170204485A1 (en) 2017-07-20
DE102014111906A1 (de) 2016-02-25
KR20170042761A (ko) 2017-04-19
EP3183371B1 (fr) 2018-10-17
US10214787B2 (en) 2019-02-26
WO2016026589A1 (fr) 2016-02-25
KR102396241B1 (ko) 2022-05-09
CN106605001A (zh) 2017-04-26
MX2016017360A (es) 2017-11-23

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