FR2382291A1 - METHOD AND DEVICE FOR REDUCING THE RESIN CONTENT OF USED FOUNDRY SAND - Google Patents

METHOD AND DEVICE FOR REDUCING THE RESIN CONTENT OF USED FOUNDRY SAND

Info

Publication number
FR2382291A1
FR2382291A1 FR7806574A FR7806574A FR2382291A1 FR 2382291 A1 FR2382291 A1 FR 2382291A1 FR 7806574 A FR7806574 A FR 7806574A FR 7806574 A FR7806574 A FR 7806574A FR 2382291 A1 FR2382291 A1 FR 2382291A1
Authority
FR
France
Prior art keywords
sand
resin
reducing
foundry
foundry sand
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.)
Withdrawn
Application number
FR7806574A
Other languages
French (fr)
Inventor
Joachim Otterbach
Horst Rotters
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.)
FREIER GRUNDER EISEN METALLWER
Original Assignee
FREIER GRUNDER EISEN METALLWER
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 FREIER GRUNDER EISEN METALLWER filed Critical FREIER GRUNDER EISEN METALLWER
Publication of FR2382291A1 publication Critical patent/FR2382291A1/en
Withdrawn legal-status Critical Current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
    • B22C5/18—Plants for preparing mould materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

Régénération du sable de fonderie. Les moules de sable aggloméré à la résine, grossièrement brisés, sont chargés dans 1 qui par 2 les amène dans le tambour tournant 3 où des billes les broyent. Le sable traverse des tamis pour arriver dans une chambre de refroidissement 4 à lit de fluidisation, avec serpentin ou plaques de circulation d'eau. Puis les grains fluidises débordent par dessus parviennent dans une chambre terminale (à gauche de 4 où ils sont soumis à l'action de jets d'air comprimé croisés qui les font frotter les uns contre les autres en les débarrassant de la résine, laquelle s'évacue à l'état de poussière entraînée par l'air. Le sable appauvri en résine est recueilli en 5. Réutilisation du sable en fonderie.Regeneration of foundry sand. The roughly broken resin-agglomerated sand molds are loaded into 1 which by 2 brings them into the rotating drum 3 where balls crush them. The sand passes through sieves to arrive in a cooling chamber 4 with a fluidization bed, with coil or water circulation plates. Then the fluidized grains overflow from above arrive in a terminal chamber (to the left of 4 where they are subjected to the action of crossed compressed air jets which make them rub against each other, freeing them of the resin, which s 'evacuates in the form of dust entrained by the air .. The sand depleted in resin is collected in 5. Reuse of the sand in the foundry.

FR7806574A 1977-03-02 1978-03-01 METHOD AND DEVICE FOR REDUCING THE RESIN CONTENT OF USED FOUNDRY SAND Withdrawn FR2382291A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19772708961 DE2708961A1 (en) 1977-03-02 1977-03-02 METHOD AND DEVICE FOR REDUCING THE RESIN CONTENT OF USED FOUNDRY SAND

Publications (1)

Publication Number Publication Date
FR2382291A1 true FR2382291A1 (en) 1978-09-29

Family

ID=6002537

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7806574A Withdrawn FR2382291A1 (en) 1977-03-02 1978-03-01 METHOD AND DEVICE FOR REDUCING THE RESIN CONTENT OF USED FOUNDRY SAND

Country Status (6)

Country Link
DE (1) DE2708961A1 (en)
ES (1) ES467504A1 (en)
FR (1) FR2382291A1 (en)
GB (1) GB1593008A (en)
NL (1) NL7802329A (en)
SE (1) SE7802366L (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0483933A2 (en) * 1990-11-02 1992-05-06 Dr. Küttner GmbH & Co. KG Process and apparatus for refining bulk material

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4508277A (en) * 1980-09-08 1985-04-02 Andrews Robert S L Apparatus for reclaiming foundry sand
US4549698A (en) * 1982-02-05 1985-10-29 Andrews Robert S L Method of reclaiming foundry sand
US4978076A (en) * 1990-03-28 1990-12-18 Gmd Engineered Systems, Inc. Method for separating hazardous substances in waste foundry sands
DE4215867A1 (en) * 1992-05-14 1993-11-18 Kgt Giessereitechnik Gmbh Method and device for regulating the sand discharge during the thermal regeneration of old foundry sand in fluidized bed furnaces

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1342404A (en) * 1962-10-29 1963-11-08 Nat Eng Co Method and device for cooling a granular material

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1342404A (en) * 1962-10-29 1963-11-08 Nat Eng Co Method and device for cooling a granular material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0483933A2 (en) * 1990-11-02 1992-05-06 Dr. Küttner GmbH & Co. KG Process and apparatus for refining bulk material
EP0483933A3 (en) * 1990-11-02 1994-08-17 Kuettner Gmbh & Co Kg Dr Process and apparatus for refining bulk material

Also Published As

Publication number Publication date
DE2708961A1 (en) 1978-09-07
ES467504A1 (en) 1979-06-16
GB1593008A (en) 1981-07-15
SE7802366L (en) 1978-09-03
NL7802329A (en) 1978-09-05

Similar Documents

Publication Publication Date Title
US2813318A (en) Method and apparatus for treating granular material
US4025419A (en) Vibratory sand reclaiming apparatus
GB1328398A (en) Method of cleaning and recovering abrasive blasting agent
JPS61103507A (en) Method and device for filtering suspension by granular filter
GB1385721A (en) Abrasive blast treating system and method
FR2382291A1 (en) METHOD AND DEVICE FOR REDUCING THE RESIN CONTENT OF USED FOUNDRY SAND
CA1045779A (en) Vibratory sand reclaiming apparatus
US3540156A (en) Machine for cleaning sand castings and recovery of components
US4671867A (en) Method and means for treating foundry sands and the like
US3848815A (en) Granulating apparatus
US3694964A (en) Abrasive blast cleaning system
US4960162A (en) Method of reclaiming foundry sand
US4004942A (en) Process and apparatus for cleaning particulate materials
US3764078A (en) Apparatus for regenerating foundry sand
JPH0515964A (en) Device for recoverying molding sand and casting product
JPS57175048A (en) Reconditioning method for molding sand
CN209379425U (en) A kind of rice processing processing unit of cracking rice
US3958764A (en) Granulating apparatus
US3690066A (en) Abrasive blast cleaning system
JPS5750237A (en) Regeneration of casting sand
SU1166880A1 (en) Apparatus for regeneration of core and mould mixes
RU2007254C1 (en) Apparatus for regeneration and concentration of sands
SU1142214A1 (en) Device for regeneration of mould and core sand mixtures
US4637559A (en) Sand lump crushing device
SU854441A1 (en) Jigging machine

Legal Events

Date Code Title Description
ST Notification of lapse