EP3183371B1 - Installation de briquetage à chaud - Google Patents

Installation de briquetage à chaud Download PDF

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Publication number
EP3183371B1
EP3183371B1 EP15723016.0A EP15723016A EP3183371B1 EP 3183371 B1 EP3183371 B1 EP 3183371B1 EP 15723016 A EP15723016 A EP 15723016A EP 3183371 B1 EP3183371 B1 EP 3183371B1
Authority
EP
European Patent Office
Prior art keywords
roller presses
presses
press
roller
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.)
Active
Application number
EP15723016.0A
Other languages
German (de)
English (en)
Other versions
EP3183371A1 (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
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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 there is (initially) a compaction, in which emerges from the press as an intermediate product strand of material, which is referred to as "Schülpe".
  • 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 the WO 00/55379 A1 known.
  • 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.
  • a bucket elevator 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.
  • 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.
  • the treated DE 195 45 985 A1 a method for hot briquetting granular sponge iron with a roller press, wherein it is possible to separate fine parts below the press.
  • Another method for hot briquetting material is, for. B. from the US 4 533 384 A known.
  • EP 2 641 981 A2 a plant for the production of molten iron from directly reduced iron, whereby the directly reduced iron is compacted in compacting presses and then comminuted.
  • the material emerging from the compaction presses or from the shredders can either be fed to a smelting furnace via a first conveyor or stored in storage containers via a second conveyor. Therefore, switches are arranged under the crushers that the material can be dispensed either on the first conveyor to the melting furnace or on the second conveyor to the storage container.
  • the invention has for its object to provide a system for hot briquetting or hot compacting, especially of directly reduced iron, which is characterized by high reliability.
  • the system should be characterized by high efficiency.
  • the invention teaches a system for hot briquetting or hot compacting, in particular directly reduced iron, with the features of claim 1.
  • 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, with the aid of the switches, it is possible to remove the (entire) material via the other, ready-to-operate cooling conveyor.
  • the presses are arranged in several press rows, namely a first press line and a second press line, 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 roll presses each of the first press line and the second press line can be selectively dispensed onto 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 presses arranged above the roll presses can be arranged at a steeper angle with the same number of presses than with an arrangement of the same number of presses in a single press line As the angle of the feedlegs increases The lying at the ends of the press line roller presses is always flatter.
  • 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.
  • 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 because of the arrangement of the presses in two rows of presses with relatively short Feedlegs can be worked, but nevertheless arranged sufficiently steep. There is also sufficient space between the individual machines for escape routes and sufficient space to open the roller presses for a roll change or to carry out other maintenance work.
  • Another advantage is the fact that the individual roller presses can each be constructed identically and can also be arranged in an identical orientation in the rows of presses. There are no special adjustments and no "mutual orientation" of adjacent presses required so that handling and maintenance are further simplified.
  • the availability of the system is also improved by the fact that not only the presses but also the cooling are redundant.
  • 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 analysis of the Fig. 2 and 3 shows that a Feedleg 5 is provided for each roller press.
  • the first press line 1 on three consecutively arranged roller presses 2 and the second press line 3 also has three successively arranged roller presses 4.
  • 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 press line 1
  • the second cooling conveyor 8 is arranged below the second press line 3.
  • 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 inventive system is thus characterized by a high reliability, because even if a cooling conveyor is ensured that the hot material is properly transported away, without a plant stop or emergency emptying would be required.
  • a common switch 9 is assigned.
  • the switch is designed in the embodiment as X-turnout (see. Fig. 3 ).
  • more than two roller presses can be assigned a common switch.
  • So z. B. two roller press pairs and consequently a total of four roller presses a common Be associated with switch. This embodiment is not shown in the figures.
  • screens 10 for separating fine parts can be arranged below the roller presses 2, 4. These fines can then be returned back to the roller presses with transport devices 11.
  • the switches 9 are arranged below the wires 10.
  • the sieves 10 are - as in Fig. 3 recognizable - inserted into the material lines 6. The material thus passes in each case from a roller press 2, 4 via the separating device 12 in a first part of the material line 6 and from there to the wire 10 and then the second part of the material line 6. This is followed by the switch 9 and in turn a third part the material line 6 at.
  • the transport devices 11 are formed in the embodiment as bucket elevators. It can be seen in the figures that these bucket elevators 11 are arranged between the press rows 1, 3. Each two roller presses is associated with a common transport device 11, so that each transport device 11 is positioned between two adjacent roller presses.
  • Fig. 4 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 embodiment according to Fig. 1 to 3 The material from the roller presses 2 via material lines 6 on the cooling conveyor 7, 8. In the material line 6 turnouts 9 are integrated, so that the material can be discharged from the roll presses 2 selectively on the first cooling conveyor 7 or on the second cooling conveyor 8 , 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.

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  • 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)
  • Manufacture Of Iron (AREA)
  • Heat Treatments In General, Especially Conveying And Cooling (AREA)

Claims (8)

  1. Installation, destinée au thermobriquetage ou au thermocompactage notamment de fer directement réduit,
    dotée d'au moins une première rangée de presses (1) comportant une ou plusieurs presses à cylindres (2) et d'au moins une deuxième rangée de presses (3) comportant une ou plusieurs deuxièmes presses à cylindres (4),
    dotée d'au moins un premier convoyeur de refroidissement (7) et d'un deuxième convoyeur de refroidissement (8), le premier convoyeur de refroidissement (7) étant placé en-dessous de la rangée de presses (1) et le deuxième convoyeur de refroidissement (8) étant placé en-dessous de la deuxième rangée de presses (3) et
    dotée de plusieurs conduits de matière (6), associés chacun aux presses à cylindres (2, 4) individuelles, par l'intermédiaire desquels la matière briquetée ou compactée sortant des presses à cylindres (2, 4) est distribuée aux convoyeurs de refroidissement (7, 8),
    les conduits de matière (6) étant équipés d'un ou de plusieurs aiguillages (9), les aiguillages (9) étant réglables de telle sorte que la matière soit distribuée des presses à cylindres, (2, 4) de la première rangée de presses (1) et de la deuxième rangée de presses (3) respectivement au choix sur le premier convoyeur de refroidissement (7) ou le deuxième convoyeur de refroidissement (8).
  2. Installation selon la revendication 1, la première rangée de presses (1) comportant plusieurs premières presses à cylindres (2) placées les unes derrière les autres sur une ligne, par exemple une droite et la deuxième rangée de presses (3) comportant plusieurs deuxièmes presses à cylindres (4) placées les unes derrière les autres sur une ligne, par exemple une droite.
  3. Installation selon l'une quelconque des revendications 1 à 2, à chaque fois deux presses à cylindres placées côte à côte par paires, à une presse à cylindres (2) de la première rangée de presses (1) d'une part et à une presse à cylindres (4) de la deuxième rangée de presses (3) d'autre part étant associé un aiguillage commun.
  4. Installation selon l'une quelconque des revendications 1 à 3, à plus de deux presses à cylindres, par exemple à deux paires de presses à cylindrées placées l'une derrière l'autre de deux presses à cylindres placées côte à côte étant associé un aiguillage commun.
  5. Installation selon l'une quelconque des revendications 2 à 4, les convoyeurs de refroidissement (7, 8) étant conçus et adaptés chacun à la capacité des presses à cylindres de telle sorte qu'en service, ils puissent respectivement recevoir et évacuer plus que la matière d'une seule des rangées de presses.
  6. Installation selon l'une quelconque des revendications 1 à 5, en-dessous des presses à cylindres (2, 4) étant placés des tamis (10) pour la séparation de particules fines, lesquelles particules fines étant recyclables à l'aide de systèmes de transport (11), par exemple des convoyeurs à godets vers les presses à cylindres (2, 4), les aiguillages étant placés de préférence en-dessous des tamis (10).
  7. Installation selon la revendication 6, à chaque fois deux presses à cylindres (2, 4) placées côte à côte par paire étant associé chaque fois au moins un système de transport (11).
  8. Installation selon la revendication 7, le système de transport (11) étant placé entre les presses à cylindres (2, 4) placées côte à côte par paires et/ou entre les convoyeurs de refroidissement (7, 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 EP3183371A1 (fr) 2017-06-28
EP3183371B1 true 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)

Cited By (1)

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

Families Citing this family (1)

* 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

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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
US5630202A (en) * 1993-09-30 1997-05-13 Maschinenfabrik Koppern Gmbh & Co. Kg Method for making 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
US7776136B2 (en) * 2002-12-21 2010-08-17 Posco Apparatus for manufacturing molten irons by hot compacting fine direct reduced irons and calcined additives and method using the same
CN1325666C (zh) * 2002-12-21 2007-07-11 Posco公司 制造铁水的设备及其使用方法
KR101118285B1 (ko) * 2004-10-19 2012-03-20 주식회사 포스코 분환원철 함유 환원체의 괴성체 제조 장치 및 이를 이용한용철제조장치
ATE513931T1 (de) * 2004-10-19 2011-07-15 Posco Vorrichtung zur herstellung von verdichtetem eisen aus reduzierten materialien mit feinem, direkt reduziertem eisen und vorrichtung zur herstellung geschmolzenen eisens damit
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

Non-Patent Citations (1)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022101419A1 (de) 2022-01-21 2023-07-27 Maschinenfabrik Köppern Gmbh & Co. Kg Vorrichtung zum Zerteilen eines Brikettstrangs
WO2023138817A1 (fr) 2022-01-21 2023-07-27 Maschinenfabrik Köppern Gmbh & Co. Kg Appareil de division d'une chaîne de briquettes
WO2023139222A1 (fr) 2022-01-21 2023-07-27 Maschinenfabrik Köppern Gmbh & Co. Kg Appareil de division d'une chaîne de briquettes

Also Published As

Publication number Publication date
US10214787B2 (en) 2019-02-26
EP3183371A1 (fr) 2017-06-28
US20170204485A1 (en) 2017-07-20
DE102014111906A1 (de) 2016-02-25
CN106605001B (zh) 2018-09-04
RU2685837C1 (ru) 2019-04-23
CN106605001A (zh) 2017-04-26
KR20170042761A (ko) 2017-04-19
CA2955337A1 (fr) 2016-02-25
MX2016017360A (es) 2017-11-23
KR102396241B1 (ko) 2022-05-09
CA2955337C (fr) 2023-01-10
WO2016026589A1 (fr) 2016-02-25

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