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 PDFInfo
- 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
Links
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 title claims description 13
- 229910052749 magnesium Inorganic materials 0.000 title claims description 13
- 239000011777 magnesium Substances 0.000 title claims description 13
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims description 11
- 239000011707 mineral Substances 0.000 title claims description 11
- 238000000605 extraction Methods 0.000 title claims description 10
- 239000000463 material Substances 0.000 claims description 8
- 238000004821 distillation Methods 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003477 cochlea Anatomy 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
Classifications
-
- 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
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/16—Dry methods smelting of sulfides or formation of mattes with volatilisation or condensation of the metal being produced
-
- 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
- C22B26/00—Obtaining alkali, alkaline earth metals or magnesium
- C22B26/20—Obtaining alkaline earth metals or magnesium
- C22B26/22—Obtaining magnesium
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B1/00—Shaft or like vertical or substantially vertical furnaces
- F27B1/005—Shaft or like vertical or substantially vertical furnaces wherein no smelting of the charge occurs, e.g. calcining or sintering furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B15/00—Fluidised-bed furnaces; Other furnaces using or treating finely-divided materials in dispersion
- F27B15/006—Equipment for treating dispersed material falling under gravity with ascending 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/0033—Charging; Discharging; Manipulation of charge charging of particulate material
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/08—Screw feeders; Screw dischargers
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/10—Charging directly from hoppers or shoots
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2003/00—Type of treatment of the charge
- F27M2003/15—Vaporisation
- F27M2003/155—Condensation
-
- 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
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)
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 |
Family
ID=11451390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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. |
Country Status (2)
| Country | Link |
|---|---|
| IT (1) | ITNA20010030A1 (en) |
| WO (1) | WO2002101309A1 (en) |
Families Citing this family (2)
| 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)
| 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 |
-
2001
- 2001-06-08 IT IT2001NA000030A patent/ITNA20010030A1/en unknown
-
2002
- 2002-06-03 WO PCT/IT2002/000357 patent/WO2002101309A1/en not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002101309A1 (en) | 2002-12-19 |
| ITNA20010030A0 (en) | 2001-06-08 |
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