TERMO d.d.,industrija termi�nih izolacij, �kofja Loka
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Application filed by TERMO d.d.,industrija termi�nih izolacij, �kofja LokafiledCriticalTERMO d.d.,industrija termi�nih izolacij, �kofja Loka
Priority to SI9600236ApriorityCriticalpatent/SI9600236B/en
Priority to HRP-9600236prioritypatent/HRP970335B1/en
Priority to EP19970930974prioritypatent/EP0914296A1/en
Priority to PCT/SI1997/000023prioritypatent/WO1998003438A1/en
Priority to CZ99180Aprioritypatent/CZ18099A3/en
Priority to SK92-99Aprioritypatent/SK9299A3/en
Publication of SI9600236ApublicationCriticalpatent/SI9600236A/en
Publication of SI9600236BpublicationCriticalpatent/SI9600236B/en
C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
C03B3/00—Charging the melting furnaces
C—CHEMISTRY; METALLURGY
C21—METALLURGY OF IRON
C21B—MANUFACTURE OF IRON OR STEEL
C21B5/00—Making pig-iron in the blast furnace
C21B5/001—Injecting additional fuel or reducing agents
C21B5/003—Injection of pulverulent coal
C—CHEMISTRY; METALLURGY
C21—METALLURGY OF IRON
C21B—MANUFACTURE OF IRON OR STEEL
C21B5/00—Making pig-iron in the blast furnace
C21B5/02—Making special pig-iron, e.g. by applying additives, e.g. oxides of other metals
C21B5/023—Injection of the additives into the melting part
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P10/00—Technologies related to metal processing
Y02P10/20—Recycling
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Chemical & Material Sciences
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Engineering & Computer Science
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Materials Engineering
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Organic Chemistry
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Manufacturing & Machinery
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Metallurgy
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Vertical, Hearth, Or Arc Furnaces
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Furnace Charging Or Discharging
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Manufacture And Refinement Of Metals
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Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces
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Processing And Handling Of Plastics And Other Materials For Molding In General
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Processing Of Solid Wastes
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Abstract
The invention concerns a process for returning scrap into a cupola furnace for preparing silicate melt for the production of rock wool, and a device for returning scrap into the furnace. In accordance with the invention, the problem of scrap returning is solved through a process for returning scrap into a cupola furnace by which scrap is fed against the wall of the lower portion (1) of the furnace simultaneously with charging the furnace with raw material and fuel, and by means of a device having a scrap feeder (10) on a revolving portion (4) which feeds the scrap into the furnace. The device under the invention and in accordance with an embodiment consists of a revolving portion (4) with feeder (10) and supporting structures (13), and a guiding ring (11) and a driving ring (12) along the outer circumference of the upper edge of the lower portion (1) of the furnace.
Claims (9)
1 Sl 960023$ POSTOPEK IN NAPRAVA ZA VRAČANJE ODPADA V KUPOLNE PEČI PATENTNI ZAHTEVKI 1. Postopek vračanja odpada v kupolne peči za pripravo silikatne taline za izdelavo mineralne volne, označen s tem, da se odpad (27) dodaja v peč ob notranjo steno spodnjega dela (1) peči v plasti debeline do najmanj 8 cm, prednostno do 25 cm.A method of returning the waste to a dome oven for the preparation of a silicate melt for the production of mineral wool, characterized in that the waste (27) is added to the furnace along the inner wall of the lower part (1) in a layer of thickness of at least 8 cm, preferably up to 25 cm.2. Postopek po zahtevku 1, označen s tem, da se pri polnitvi peči najprej doda odpad (27) in nato polni s surovino in energentom ali njuno mešanico (26).Method according to claim 1, characterized in that, when filling the furnace, the waste (27) is first added and then filled with the raw material and the energy product or their mixture (26).3. Postopek po zahtevku 1, označen s tem, da se pri polnitvi peč najprej polni s surovino in energentom ali njuno mešanico (26) ter nato doda odpad (27).Method according to claim 1, characterized in that when filling the furnace, it is first charged with the raw material and the energy product or their mixture (26), and then the waste (27) is added.4. Postopek po zahtevku 1, označen s tem, da se peč polni sočasno z odpadom (27) in s surovino in energentom ali njuno mešanico (26).A method according to claim 1, characterized in that the furnace is charged simultaneously with the waste (27) and with the raw material and the energy product or their mixture (26).5. Naprava za vračanja odpada v kupolne peči za pripravo silikatne taline za izdelavo mineralne volne, označena s tem, da je rotirajoči del (4) voden med spodnjim delom (1) in gornjim delom (2) peči, da je rotirajoči del (4) vrteč okrog vertikalne centralne osi peči, da je dodajalnik (10) pritrjen na poljuben zunanji obodni položaj rotirajočega dela (4), pri čemer dodajalnik (10) odpada med delovanjem dostavlja odpad (27) v smeri proti centralni osi peči in da je znotraj notranje stene peči usmerjevalnik (15), ki usmerja odpad (27) navzdol in ob notranjo površino notranje stene spodnjega dela (1) peči, pri čemer je ureditev takšna, da dodajalnik (10) odpada deluje takrat, ko rotirajoči del (4) peči rotira okrog navedene vertikalne centralne osi.5. A device for returning waste into a cupola furnace for producing a silicate melt for making mineral wool, characterized in that the rotating part (4) is guided between the lower part (1) and the upper part (2) of the furnace, so that the rotating part (4 ) rotating around the vertical central axis of the furnace so that the feeder (10) is attached to any outer circumferential position of the rotating part (4), wherein the waste collector (10) during operation delivers the waste (27) in the direction towards the central axis of the furnace and that it is inside the inner wall of the furnace router (15) which directs the waste (27) downwardly and toward the inner surface of the inner wall of the lower part (1) of the furnace, wherein the arrangement is such that the waste collector (10) operates when the rotating part (4) of the furnace rotates around said vertical central axis.6. Naprava po zahtevku 5, označena s tem, da je rotirajoči del (4) voden z nosilnimi strukturami (13) in najmanj enim vodilnim obročem in najmanj enim vodilnim obročem (11,23).Device according to claim 5, characterized in that the rotating part (4) is guided by the supporting structures (13) and at least one guide ring and at least one guide ring (11, 23).7. Naprava po zahtevku 6, označena s tem, da imajo navedene nosilne strukture (13) horizontalnima kolesa (19) in vertikalna kolesa (20, 24, 25) ki sodelujejo z vsaj enim vodilnim obročem (11,23).Device according to claim 6, characterized in that said support structures (13) have horizontal wheels (19) and vertical wheels (20, 24, 25) cooperating with at least one guide ring (11, 23).8. Naprava po zahtevku 5, označena s tem, da navedeni dodajalnik (10) odpada sestavljajo polžasti transporterji, rezervoar (18), usmerjevalnik (15) in pogoni (14,17).Device according to claim 5, characterized in that said waste additive (10) consists of worm conveyors, reservoir (18), router (15), and actuators (14, 17).9. Naprava po zahtevku 8, označena s tem, da je usmerjevalnik (15) je izdelan kot zaslon pod ostrim kotom s steno rotirajočega dela (4) preko izhoda dodajalnika (10).Device according to claim 8, characterized in that the router (15) is manufactured as a screen at a sharp angle with the wall of the rotating part (4) through the output of the feeder (10).
SI9600236A1996-07-241996-07-24Procedure and device for returning the waste into dome furnace
SI9600236B
(en)
Glazing station for ceramic tiles - where shape of spraying cabinet prevents unwanted drops of glaze from falling onto tiles and spoiling their appearance