ITNA20010030A1 - CONTINUOUS OVEN WORKING UNDER VACUUM FOR THE THERMAL EXTRACTION OF THE MAGNESIUM FROM THE MINERALS CONTAINING IT. - Google Patents

CONTINUOUS OVEN WORKING UNDER VACUUM FOR THE THERMAL EXTRACTION OF THE MAGNESIUM FROM THE MINERALS CONTAINING IT. Download PDF

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Publication number
ITNA20010030A1
ITNA20010030A1 IT2001NA000030A ITNA20010030A ITNA20010030A1 IT NA20010030 A1 ITNA20010030 A1 IT NA20010030A1 IT 2001NA000030 A IT2001NA000030 A IT 2001NA000030A IT NA20010030 A ITNA20010030 A IT NA20010030A IT NA20010030 A1 ITNA20010030 A1 IT NA20010030A1
Authority
IT
Italy
Prior art keywords
magnesium
furnace
mineral
under vacuum
extraction
Prior art date
Application number
IT2001NA000030A
Other languages
Italian (it)
Inventor
Francesco Branco
Original Assignee
Catalano Adriana
Santoloce Luciana
Gandolfo Donatella
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 Catalano Adriana, Santoloce Luciana, Gandolfo Donatella filed Critical Catalano Adriana
Priority to IT2001NA000030A priority Critical patent/ITNA20010030A1/en
Publication of ITNA20010030A0 publication Critical patent/ITNA20010030A0/en
Priority to PCT/IT2002/000357 priority patent/WO2002101309A1/en
Publication of ITNA20010030A1 publication Critical patent/ITNA20010030A1/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B5/00General methods of reducing to metals
    • C22B5/02Dry methods smelting of sulfides or formation of mattes
    • C22B5/16Dry methods smelting of sulfides or formation of mattes with volatilisation or condensation of the metal being produced
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B26/00Obtaining alkali, alkaline earth metals or magnesium
    • C22B26/20Obtaining alkaline earth metals or magnesium
    • C22B26/22Obtaining magnesium
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00Shaft or like vertical or substantially vertical furnaces
    • F27B1/005Shaft or like vertical or substantially vertical furnaces wherein no smelting of the charge occurs, e.g. calcining or sintering furnaces
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27BFURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B15/00Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
    • F27B15/006Equipment for treating dispersed material falling under gravity with ascending gases
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/0033Charging; Discharging; Manipulation of charge charging of particulate material
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/08Screw feeders; Screw dischargers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27DDETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00Charging; Discharging; Manipulation of charge
    • F27D3/10Charging directly from hoppers or shoots
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27FURNACES; KILNS; OVENS; RETORTS
    • F27MINDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
    • F27M2003/00Type of treatment of the charge
    • F27M2003/15Vaporisation
    • F27M2003/155Condensation
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Description

DESCRIZIONE DEL BREVETTO PER INVENZIONE INDUSTRIALE dal titolo "FORNO CONTINUO FUNZIONANTE SOTTO VUOTO PER L'ESTRAZIONE TERMICA DEL MAGNESIO " DESCRIPTION OF THE PATENT FOR INDUSTRIAL INVENTION entitled "CONTINUOUS OVEN WORKING UNDER VACUUM FOR THE THERMAL EXTRACTION OF MAGNESIUM"

I forni utilizzati nel processo termico per l'estrazione del magnesio metallico dal suo minerale sono di tipo discontinuo, in altre parole, operano per singola carica. Ciò è dovuto al fatto che il metallo distilla dal suo minerale sotto vuoto spinto, pochi mm di mercurio, ed a temperatura elevata, intorno a 1400 °C, pertanto l'utilizzo di grossi contenitori pone dei problemi costruttivi rilevanti sia per la tenuta al vuoto sia di resistenza meccanica alle alte temperature. Essi si adattano bene a piccole produzioni avendo delle limitate dimensioni. Il forno che andremo a descrivere e di tipo continuo, funzionante sotto vuoto e resistente alle alte temperature richieste dal processo termico. In tale tipo di forno l'alimentazione del minerale e la relativa estrazione del magnesio metallico avvengono senza interruzione di sorta, in altre parole,in modo continuo. Il vantaggio e di poter ottenere produzioni elevate e competere con altri sistemi per l'estrazione del magnesio sia di tipo termico che elettrolitico. The furnaces used in the thermal process for the extraction of metallic magnesium from its mineral are of the discontinuous type, in other words, they operate for a single charge. This is due to the fact that the metal distills from its mineral under high vacuum, a few mm of mercury, and at a high temperature, around 1400 ° C, therefore the use of large containers poses significant construction problems both for vacuum tightness. both of mechanical resistance at high temperatures. They are well suited to small productions having limited dimensions. The furnace we are going to describe is of the continuous type, operating under vacuum and resistant to the high temperatures required by the thermal process. In this type of furnace the feeding of the mineral and the relative extraction of the metallic magnesium take place without any interruption, in other words, continuously. The advantage is to be able to obtain high productions and compete with other systems for the extraction of magnesium both of the thermal and electrolytic type.

TESTO DELLA DESCRIZIONE TEXT OF THE DESCRIPTION

Il forno è costituito da una tramoggia |A| tav.l entro la quale è alimentato il minerale |B| tav.l. da cui si deve estrarre il magnesio. Il fondo della tramoggia è chiuso da un sistema di tenuta |C| tav.l, che consente il passaggio del materiale impedendo l'ingresso dell'aria esterna. Tramite un condotto |D| tav.l. il minerale giunge ad una coclea d'alimentazione |E| tav.l la quale provvede a convogliare il materiale nella zona d'estrazione |F| tav.l, propriamente detta di distillazione. La zona di distillazione è formata da un cilindro |G| tav.1, coassiale alla coclea, entro il quale si espande il materiale a formare una superficie di distillazione. Intorno e/o dentro il cilindro, nella zona di distillazione, è installato un sistema di riscaldo |Η| tav.1.che provvede ad innalzare la temperatura del minerale sino alla soglia di distillazione del magnesio metallico. Intorno al complesso di riscaldamento è applicata una camera di refrattario |I| tav.1 per il contenimento dei disperdimenti termici. Il materiale esaurito ridiscende lungo il cilindro incontrando un disco estrattore e frantumatore |L| tav.1. che sminuzza il materiale. Il materiale frantumato discende lungo la tramoggia |M | tav.l. alla cui estremità è posto un sistema di chiusura a tenuta |N| tav.l.che consente la fuoriuscita del materiale esaurito impedendo l'ingresso dell'aria esterna. The oven consists of a hopper | A | table 1 within which the mineral | B | is fed tav.l. from which magnesium must be extracted. The bottom of the hopper is closed by a sealing system | C | tav.l, which allows the passage of the material preventing the entry of external air. Through a conduit | D | tav.l. the mineral reaches a feeding screw | E | table 1 which conveys the material to the extraction area | F | tav.l, properly called distillation. The distillation zone is formed by a cylinder | G | Table 1, coaxial to the cochlea, within which the material expands to form a distillation surface. A heating system | Η | is installed around and / or inside the cylinder, in the distillation area Table 1 which raises the temperature of the mineral up to the distillation threshold of metallic magnesium. A refractory chamber | I | is applied around the heating complex Table 1 for the containment of thermal dispersions. The exhausted material descends along the cylinder meeting an extractor and crusher disc | L | table 1. that shreds the material. The crushed material descends along the hopper | M | tav.l. at the end of which there is a sealing system | N | table which allows the exhausted material to escape, preventing the entry of external air.

I vapori di magnesio, distillato nella zona |F| tav.l, passano nel condotto |0| tav.1. per essere introdotti nel condensatore |P| tav.1. Il condensatore è costituito da un cilindro metallico fornito di un'intercapedine esterna |Q| tav.1. raffreddata da un fluido refrigerante. I vapori di magnesio condensano sulle pareti del condensatore. Il metallo condensato è raschiato dalla parete da un raschiatone |R| tav.1. e si raccoglie sul fondo della tramoggia |S| tav.1. Il fondo della tramoggia è chiuso da un sistema di tenuta |T| tav.1. che consente l'uscita del magnesio impedendo l'ingresso dell'aria esterna. Il vuoto necessario allo svolgimento del processo dì estrazione termica è effettuato eliminando l'aria dal forno tramite il bocchello |U | tav.1. The magnesium vapors, distilled in zone | F | tav.l, pass into the duct | 0 | table 1. to be introduced into the condenser | P | table 1. The condenser consists of a metal cylinder equipped with an external jacket | Q | table 1. cooled by a refrigerant fluid. The magnesium vapors condense on the condenser walls. The condensed metal is scraped from the wall by a scraper | R | table 1. and collects at the bottom of the hopper | S | table 1. The bottom of the hopper is closed by a sealing system | T | table 1. which allows the magnesium to escape, preventing the entry of outside air. The vacuum necessary to carry out the thermal extraction process is carried out by eliminating the air from the oven through the nozzle | U | table 1.

Claims (1)

RIVENDICAZIONI 1° - Forno a sviluppo verticale in cui l'introduzione del minerale vergine, nella zona di distillazione del magnesio è coassiale al condotto di estrazione del minerale esaurito. 2° - Forno caratterizzato dal percorso di estrazione del materiale esaurito che avviene in controcorrente al percorso di introduzione del minerale vergine . 3° - Forno dotato di un estrattore frantumatore del minerale esaurito inserito nel condotto di estrazione . 4 “-Forno come ai punti precedenti dotato di condotto di raccolta e convogliamento dei vapori di magnesio al condensatore 5° - Forno avente un condensatore di vapori di magnesio dotato di un raschiatone del metallo condensato sulle sue pareti 6° - Forno dotato di sistema di riscaldamento del minerale posto internamente e/o esternamente alla zona di distillazione. CLAIMS 1 ° - Vertical furnace in which the introduction of the virgin mineral into the magnesium distillation zone is coaxial with the exhausted mineral extraction duct. 2nd - Furnace characterized by the path of extraction of the exhausted material which occurs in countercurrent to the path of introduction of the virgin mineral. 3 ° - Furnace equipped with a crusher extractor of the spent ore inserted in the extraction duct. 4 “-Oven as in the previous points equipped with a conduit for collecting and conveying the magnesium vapors to the condenser 5 ° - Furnace having a magnesium vapor condenser equipped with a scraper of the metal condensed on its walls 6 ° - Furnace equipped with a mineral heating system placed inside and / or outside the distillation area.
IT2001NA000030A 2001-06-08 2001-06-08 CONTINUOUS OVEN WORKING UNDER VACUUM FOR THE THERMAL EXTRACTION OF THE MAGNESIUM FROM THE MINERALS CONTAINING IT. ITNA20010030A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
IT2001NA000030A ITNA20010030A1 (en) 2001-06-08 2001-06-08 CONTINUOUS OVEN WORKING UNDER VACUUM FOR THE THERMAL EXTRACTION OF THE MAGNESIUM FROM THE MINERALS CONTAINING IT.
PCT/IT2002/000357 WO2002101309A1 (en) 2001-06-08 2002-06-03 An apparatus for the extraction of metallic magnesium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2001NA000030A ITNA20010030A1 (en) 2001-06-08 2001-06-08 CONTINUOUS OVEN WORKING UNDER VACUUM FOR THE THERMAL EXTRACTION OF THE MAGNESIUM FROM THE MINERALS CONTAINING IT.

Publications (2)

Publication Number Publication Date
ITNA20010030A0 ITNA20010030A0 (en) 2001-06-08
ITNA20010030A1 true ITNA20010030A1 (en) 2002-12-08

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IT2001NA000030A ITNA20010030A1 (en) 2001-06-08 2001-06-08 CONTINUOUS OVEN WORKING UNDER VACUUM FOR THE THERMAL EXTRACTION OF THE MAGNESIUM FROM THE MINERALS CONTAINING IT.

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IT (1) ITNA20010030A1 (en)
WO (1) WO2002101309A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITSA20030004A1 (en) 2003-01-16 2004-07-17 Antonio Spoleto ROTARY OVEN SYSTEM FOR SALT-FREE MELTING OF METAL MATERIALS.
CN104561600A (en) * 2013-10-12 2015-04-29 郑州大学 Self-propelled automatic pneumatic mucking machine

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1191112B (en) * 1962-02-28 1965-04-15 Vaw Ver Aluminium Werke Ag Process and device for the thermal extraction of magnesium
BE862930A (en) * 1977-01-26 1978-07-17 Tabel Rene PLANT FOR PYROLYTIC COMBUSTION OF WASTE SUCH AS WOOD
DE2725839C2 (en) * 1977-06-08 1985-10-10 Roderich W. Dr.-Ing. 6100 Darmstadt Gräff Method and device for drying powdery bulk goods

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Publication number Publication date
WO2002101309A1 (en) 2002-12-19
ITNA20010030A0 (en) 2001-06-08

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