ES2045956T3 - Procedimiento para recuperar arena de moldeo usada mediante tostacion. - Google Patents

Procedimiento para recuperar arena de moldeo usada mediante tostacion.

Info

Publication number
ES2045956T3
ES2045956T3 ES90917565T ES90917565T ES2045956T3 ES 2045956 T3 ES2045956 T3 ES 2045956T3 ES 90917565 T ES90917565 T ES 90917565T ES 90917565 T ES90917565 T ES 90917565T ES 2045956 T3 ES2045956 T3 ES 2045956T3
Authority
ES
Spain
Prior art keywords
sand
receptacle
combustion
burner
toasting
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.)
Expired - Lifetime
Application number
ES90917565T
Other languages
English (en)
Inventor
Pio Fumagalli
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of ES2045956T3 publication Critical patent/ES2045956T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C5/00—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose
    • B22C5/08—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sprinkling, cooling, or drying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/24—Contaminated soil; foundry sand
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L2900/00—Special arrangements for supplying or treating air or oxidant for combustion; Injecting inert gas, water or steam into the combustion chamber
    • F23L2900/07005—Injecting pure oxygen or oxygen enriched air
    • 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
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S241/00—Solid material comminution or disintegration
    • Y10S241/10—Foundry sand treatment

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

EL METODO PERMITE LA RECUPERACION DE ARENA DE FUNDICION USADA PARA VOLVER A UTILIZARLA ELIMINANDO, POR COMBUSTION, LAS SUSTANCIAS DE CARBONO ORGANICO CON LAS QUE ESTA IMPREGNADA LA ARENA USADA; LA ARENA USADA, DESPUES DE TRITURARLA HASTA QUE ALCANCE UN TAMAÑO DE GRANO UNIFORME, SE PONE EN UN CONTENEDOR CILINDRICO (2) INCLINADO CON RESPECTO A LA VERTICAL Y GIRADO LENTAMENTE (4-6 REVOLUCIONES POR MINUTO); A CONTINUACION, SE INYECTA UN CHORRO DE OXIGENO EN LA BASE DEL RECEPTACULO A TRAVES DE UN DISTRIBUIDOR (5) QUE LO DISTRIBUYE UNIFORMEMENTE POR LA SUPERFICIE DE LA MASA DE ARENA (20) Y SE INICIA UNA COMBUSTION LOCAL EN LA SUPERFICIE DE LA MASA DE ARENA, EN LA PARTE SUPERIOR DEL RECEPTACULO, POR MEDIO DE UN QUEMADOR (31); FINALMENTE, SE APAGA EL QUEMADOR MIENTRAS SE MANTIENE LA ALIMENTACION DEL CHORRO DE OXIGENO Y PROSIGUE LA COMBUSTION Y SE AUTO-ALIMENTA POR EFECTO DE UN DESCENSO PROGRESIVO DEL FRENTE DE LLAMAS (30) HACIA LA BASE DEL RECEPTACULO HASTA QUE HAYA TENIDO LUGAR LA COMPLETA DESTRUCCION DE LAS SUSTANCIAS ORGANICAS Y DE CARBONO CONTENIDAS EN LA ARENA.
ES90917565T 1989-11-28 1990-11-23 Procedimiento para recuperar arena de moldeo usada mediante tostacion. Expired - Lifetime ES2045956T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT06805089A IT1237296B (it) 1989-11-28 1989-11-28 Metodo per il recupero delle sabbie di fonderia esauste mediante arrostimento.

Publications (1)

Publication Number Publication Date
ES2045956T3 true ES2045956T3 (es) 1994-01-16

Family

ID=11307474

Family Applications (1)

Application Number Title Priority Date Filing Date
ES90917565T Expired - Lifetime ES2045956T3 (es) 1989-11-28 1990-11-23 Procedimiento para recuperar arena de moldeo usada mediante tostacion.

Country Status (12)

Country Link
US (1) US5299618A (es)
EP (1) EP0502906B1 (es)
JP (1) JPH05501522A (es)
AU (1) AU647436B2 (es)
BR (1) BR9007872A (es)
CA (1) CA2069749A1 (es)
DE (1) DE69003250T2 (es)
ES (1) ES2045956T3 (es)
IT (1) IT1237296B (es)
RU (1) RU2080203C1 (es)
UA (1) UA25970C2 (es)
WO (1) WO1991008068A1 (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363779A (en) * 1993-12-01 1994-11-15 Praxair Technology, Inc. Systems and processes for pyrolyzing contaminants on foundry sand and combusting the resulting gas
DE19506539A1 (de) * 1995-02-24 1996-08-29 Air Liquide Gmbh Vorrichtung zum Regenerieren von Gießereialtsand
FR2733302B1 (fr) * 1995-04-21 1997-05-23 Air Liquide Procede de traitement par combustion de solides a faible pouvoir calorifique
US6398139B1 (en) * 1999-08-23 2002-06-04 Roland Nied Process for fluidized-bed jet milling, device for carrying out this process and unit with such a device for carrying out this process
US6631808B2 (en) 2001-08-07 2003-10-14 Particle And Coating Technologies, Inc. Air classifier system for the separation of particles
US6691765B2 (en) 2001-08-07 2004-02-17 Noram Technology, Ltd. Products for the manufacture of molds and cores used in metal casting and a method for their manufacture and recycle from crushed rock
GB0410484D0 (en) * 2004-05-11 2004-06-16 Ashland Uk Ltd Reclamation of ester-cured phenolic resin bonded foundry sands

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2553318A (en) * 1949-05-20 1951-05-15 Herbert S Simpson Method of reclaiming sand
DE1526077C3 (de) * 1966-08-18 1975-12-11 Eckert & Ziegler Gmbh, 8832 Weissenburg Drehtrommelofen, insbesondere zum Verbrennen von Mül
JPS5641044A (en) * 1979-09-10 1981-04-17 Dependable Fordath Inc Method of casting sheel mold
JPS56117856A (en) * 1980-02-18 1981-09-16 Nippon Kokan Keishiyu Kk Method and device for regeneration of molding sand
IT1188886B (it) * 1980-12-24 1988-01-28 Fata Europ Group Forno di calcinazione a letto fluidizzato particolarmente per il recupero delle sabbie utilizzate in forme ed anime di fonderia
US4429642A (en) * 1982-04-16 1984-02-07 Combustion Engineering, Inc. Thermal reclaimer apparatus for a thermal sand reclamation system
DE3309379A1 (de) * 1983-03-16 1984-09-20 Hubert Eirich Verfahren zur regenerierung von giessereialtsand und vorrichtung zur durchfuehrung des verfahrens
JPS59215242A (ja) * 1983-05-23 1984-12-05 Nippon Kokan Keishiyu Kk 鋳物砂の再生方法
US4544013A (en) * 1983-11-07 1985-10-01 Ford Motor Company Method of reclaiming sand used in evaporative casting process
JPS60216949A (ja) * 1984-04-11 1985-10-30 Nippon Kokan Keishiyu Kk 鋳物砂の再生方法
JPS60250847A (ja) * 1984-05-25 1985-12-11 Nippon Kokan Keishiyu Kk 鋳物砂の再生焙焼炉
GB8511622D0 (en) * 1985-05-08 1985-06-12 Richards Structural Steel Co L Thermal reclamation of industrial sand
DE3636479A1 (de) * 1986-10-27 1988-05-05 Foerder & Anlagentechnik Gmbh Verfahren und anordnung zur thermo-mechanischen regenerierung von schuettguetern, insbesondere von giesserei-altsand
JPS63180340A (ja) * 1987-01-22 1988-07-25 Nippon Kokan Keishiyu Kk 鋳物砂の再生方法

Also Published As

Publication number Publication date
DE69003250D1 (de) 1993-10-14
CA2069749A1 (en) 1991-05-29
AU6877491A (en) 1991-06-26
DE69003250T2 (de) 1994-01-05
BR9007872A (pt) 1992-08-25
US5299618A (en) 1994-04-05
IT1237296B (it) 1993-05-27
RU2080203C1 (ru) 1997-05-27
EP0502906A1 (en) 1992-09-16
UA25970C2 (uk) 1999-02-26
AU647436B2 (en) 1994-03-24
WO1991008068A1 (en) 1991-06-13
JPH05501522A (ja) 1993-03-25
EP0502906B1 (en) 1993-09-08
IT8968050A0 (it) 1989-11-28

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