GB1470698A - Method and apparatus for treating foundry sand - Google Patents

Method and apparatus for treating foundry sand

Info

Publication number
GB1470698A
GB1470698A GB2835874A GB2835874A GB1470698A GB 1470698 A GB1470698 A GB 1470698A GB 2835874 A GB2835874 A GB 2835874A GB 2835874 A GB2835874 A GB 2835874A GB 1470698 A GB1470698 A GB 1470698A
Authority
GB
United Kingdom
Prior art keywords
screen
mesh
foundry sand
lumps
reduced
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
Application number
GB2835874A
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.)
Georgia Iron Works Co
Original Assignee
Georgia Iron Works Co
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 Georgia Iron Works Co filed Critical Georgia Iron Works Co
Publication of GB1470698A publication Critical patent/GB1470698A/en
Expired 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
    • B22C5/04—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by grinding, blending, mixing, kneading, or stirring
    • B22C5/0404—Stirring by using vibrations while grinding
    • 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

Abstract

1470698 Reducing foundry sand; vibratory screens GEORGIA IRON WORKS CO 26 June 1974 [26 July 1973] 28358/74 Headings B2A and B2H Foundry sand lumps are reduced and binders at least partially removed by first vibrating the lumps 82 on a screen comprised of saw tooth bars 84 Fig. 4, agitating the reduced material in a fluidised condition above a slotted screen 98, passing the cleaned reduced material leaving the slotted screen through a stretched fine screen 106 typically 10-20 mesh and preferably 12 mesh and discharging the product at 126 Fig. 3, and removing via an outlet 118, tramp material. Vibratory motion with at least a vertical component is produced by an eccentric shaft 36 running at up to 5000 r.p.m. The screen 106 is tensioned by spring-biassed rods 114, Fig. 4. A discharge pan 120 may also be a 100-300 mesh screen. Air is drawn, by means not shown, through openings 128, 130 Fig. 4 to remove very light binder particles. The whole mechanism is suspended on springs 70 mounted in housing covers 78.
GB2835874A 1973-07-26 1974-06-26 Method and apparatus for treating foundry sand Expired GB1470698A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US382789A US3863847A (en) 1973-07-26 1973-07-26 Foundry sand reducer and reclaimer

Publications (1)

Publication Number Publication Date
GB1470698A true GB1470698A (en) 1977-04-21

Family

ID=23510422

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2835874A Expired GB1470698A (en) 1973-07-26 1974-06-26 Method and apparatus for treating foundry sand

Country Status (5)

Country Link
US (1) US3863847A (en)
CA (1) CA1030724A (en)
DE (1) DE2435943A1 (en)
GB (1) GB1470698A (en)
NL (1) NL7409965A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105855018A (en) * 2016-05-10 2016-08-17 成都菲斯普科技有限公司 Medicine smashing and screening device

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4205796A (en) * 1978-03-03 1980-06-03 Rexnord Inc. Vibrating reclaimer of foundry mold material
DE2921197A1 (en) * 1979-05-25 1980-12-04 Hermann J Linder Moulding sand regeneration - in vibrating tank with screens, air sifting, fluidised bed and coolant spiral cooling
US4487372A (en) * 1982-04-16 1984-12-11 Combustion Engineering, Inc. Thermal sand reclamation system
DE3400648A1 (en) * 1984-01-11 1985-07-18 Delta Engineering Beratung und Vermittlung Gesellschaft mbH, Irdning DEVICE AND METHOD FOR REGENERATING FOUNDRY SCRAP
NL8500657A (en) * 1985-03-07 1986-10-01 Veer P Holding Bv Van Der METHOD AND APPARATUS FOR SHARING A PARTICULAR SIZE OF BREAKING AND SCREENING OF A DUMPING MATERIAL
US4648560A (en) * 1985-06-25 1987-03-10 T.D.J. Co., Inc. Screen separator method for foundry waste materials
DE3815877C1 (en) * 1988-05-09 1989-08-31 Uraphos Chemie Gmbh, 6370 Oberursel, De A process for separating off inorganic binder systems in the regeneration of used foundry sands
CH680498A5 (en) * 1989-11-28 1992-09-15 Fischer Ag Georg
US5238195A (en) * 1991-07-30 1993-08-24 Knez Building Materials Company Method for recycling wallboard
US5183213A (en) * 1991-07-30 1993-02-02 Knez Building Materials Company Method for recycling wallboard
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
US6631808B2 (en) 2001-08-07 2003-10-14 Particle And Coating Technologies, Inc. Air classifier system for the separation of particles
BRPI0809132B1 (en) 2007-03-21 2020-10-13 Derrick Corporation vibrating screening machine, pre-screening set and method for screening materials
US8235313B2 (en) * 2008-09-20 2012-08-07 Unimin Corporation Method of making proppants used in gas or oil extraction
CN102728555B (en) * 2011-04-11 2015-09-30 王仲武 A kind of dry separation enrichment and separation method and the system for dry separation enrichment and separation method
DE102011100240A1 (en) * 2011-05-02 2012-11-08 Ralf Schäfer Apparatus for impact crushing and application of materials, in particular wood, in several fractions
CN104324784B (en) * 2014-10-27 2017-06-20 惠安县长信机电科技有限公司 Honeycomb coal slurry manufacturing equipment
CN106076844A (en) * 2016-06-14 2016-11-09 成都菲斯普科技有限公司 A kind of medicine crushing and screening device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2020800A (en) * 1933-03-21 1935-11-12 Royer Foundry & Machine Co Screening apparatus
US2452362A (en) * 1944-12-19 1948-10-26 Link Belt Co Apparatus for treating flowable solids
US2488381A (en) * 1946-02-04 1949-11-15 Royer Foundry & Machine Compan Apparatus for treating molder's sand
SE334811B (en) * 1970-02-24 1971-05-03 Stille Werner Ab

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105855018A (en) * 2016-05-10 2016-08-17 成都菲斯普科技有限公司 Medicine smashing and screening device

Also Published As

Publication number Publication date
US3863847A (en) 1975-02-04
NL7409965A (en) 1975-01-28
CA1030724A (en) 1978-05-09
AU7075674A (en) 1976-01-08
DE2435943A1 (en) 1975-02-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee