CS61091A2 - Method of mostly clay-bonded old foundry sand's recovery treatment - Google Patents
Method of mostly clay-bonded old foundry sand's recovery treatment Download PDFInfo
- Publication number
- CS61091A2 CS61091A2 CS91610A CS61091A CS61091A2 CS 61091 A2 CS61091 A2 CS 61091A2 CS 91610 A CS91610 A CS 91610A CS 61091 A CS61091 A CS 61091A CS 61091 A2 CS61091 A2 CS 61091A2
- Authority
- CS
- Czechoslovakia
- Prior art keywords
- sand
- old
- bonded
- foundry sand
- recovery treatment
- Prior art date
Links
- 239000004576 sand Substances 0.000 title claims description 16
- 238000000034 method Methods 0.000 title claims description 5
- 238000011084 recovery Methods 0.000 title description 3
- 230000008929 regeneration Effects 0.000 claims description 7
- 238000011069 regeneration method Methods 0.000 claims description 7
- 239000004927 clay Substances 0.000 claims description 3
- 239000000654 additive Substances 0.000 claims description 2
- 239000011230 binding agent Substances 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 230000001172 regenerating effect Effects 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000010410 dusting Methods 0.000 claims 1
- 239000000428 dust Substances 0.000 description 5
- 230000000996 additive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
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
- B22C5/10—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by dust separating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Treatment Of Sludge (AREA)
- Processing Of Solid Wastes (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Description
- 1 -- 1 -
Způsob regeneračního zpracování starého slévárenského píjsku' \ pojeného převážné jílemA method of regenerating the old foundry line, mostly clay
\WW
Oblast technikyTechnical field
« <S.6 X 30·“· Předložený vynález se týká způsobu regeneračního zpracování i ·(·? starého slévárenského písku pojeného převážně jílem pro jéhc^jsjjLP--·'vuzhodnocení místo nového písku,'u kterého se zrnka písku opako-vaně urychlují a zbržčLují a kombinovaným nárazovým a smykovým na-máháním na sebe se omílají a tím se uvolňují od obalů z pojivo-vých a přídavných materiálů, které na zrnkách písku ulpívají, zanasazení pneumatického odprašovacího zařízení, které vede ven.The present invention relates to a process for the regeneration of old foundry sand bonded predominantly with clay for the evaluation of a new sand, in which sand grains are repeatedly reprocessed. they accelerate and slow down and, in a combined impact and shear force, tear on each other, thereby releasing them from the binder and additive packaging that adheres to the sand grains, inserting the pneumatic dedusting device leading out.
Dosavadní stav technikyBackground Art
Pro úplné uvolnění zrnek písku od obalu je bezpodmínečně nut-né, aby se tento obal odsával ve formě prachu. Když se prach ne-odstraňme, tlumí se nárazové a smykové namáhání a regeneračnízpracování se výrazně poškozuje. I přes intenzivní odsávání vytvářejícího se prachu se cílenedosáhne tehdy, když se přitom vytvářejí malé hrudky. Tyto hrud-ky se mohou rozrážet prostřednictvím míchadla, což se však poda-ří až po určité době. Výkon takového regeneračního zařízení se tímsníží.It is imperative that the sand is aspirated in the form of dust to completely release the grains from the package. When the dust is not removed, the impact and shear stresses are dampened and the regeneration treatment is severely damaged. Despite the intense suction of the dust being generated, the target is reached when small lumps are formed. These lumps may be broken up by means of a stirrer, but this will not take place until some time. The performance of such a regeneration device is thereby reduced.
Vycházejíc z tohoto stavu techniky tvoří základ předloženéhovynálezu úkol, vytvořit způsob typu popsaného v úvodu, který při-pouští dobrou regeneraci starého písku a udržuje výkon regenerač-ního zařízení starého písku konstantní. - 2 -Based on this state of the art, the object of the present invention is to provide a method of the type described in the introduction which allows good recovery of old sand and keeps the performance of the old sand recovery plant constant. - 2 -
Podstata vynálezuSUMMARY OF THE INVENTION
Tento úkol je podle vynálezu vyřešen tím, že se obsah vody vestarém písku před regeneračním zpracováním nastaví nanejvýš najedno procento hmotnosti.This object is achieved according to the invention in that the water content of the old sand is set to at most one percent by weight before the regeneration treatment.
Skutečnost, že se hrudky písku případně prachu nechají po ur-čité době rozbít míchadlem, ukazuje na to, že mechanické působenípřechází na působení tepelné. Teplo přivedené takto pískovým pří-pdně prachovým hrudkám není ekonomické, jelikož se jedná o energiielektrickou.The fact that lumps of sand or dust are allowed to break through the stirrer after a certain period of time indicates that the mechanical action translates into thermal action. The heat brought in by such sand or dust lumps is not economical since it is energy-electric.
Je tedy výhodnější starý písek předem vysušit, přičemž obsahvody před regeneračním zpracováním má ležet nanejvýš u jednohohmotnostního procenta a méně. Za těchto okolností nedochází k žád-nému vytváření hrudek a regenerační zařízení starého písku zacho-vává svůj plný výkon. “0 T3 Z! r- > O o < c? roí » í *- ? > sThus, it is preferable to dry the old sand beforehand, and the contents before the regeneration treatment should be at most one percent by weight or less. Under these circumstances, there is no lump formation and the old sand restorer retains its full power. “0 T3 Z! r-> O o <c? roíìí * -? > p
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH749/90A CH682056A5 (en) | 1990-03-08 | 1990-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CS61091A2 true CS61091A2 (en) | 1991-09-15 |
Family
ID=4194306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS91610A CS61091A2 (en) | 1990-03-08 | 1991-03-08 | Method of mostly clay-bonded old foundry sand's recovery treatment |
Country Status (24)
| Country | Link |
|---|---|
| JP (1) | JPH06134546A (en) |
| AT (1) | AT401244B (en) |
| AU (1) | AU7267591A (en) |
| BE (1) | BE1006644A5 (en) |
| BR (1) | BR9100949A (en) |
| CA (1) | CA2037737A1 (en) |
| CH (1) | CH682056A5 (en) |
| CS (1) | CS61091A2 (en) |
| DE (1) | DE4106736C2 (en) |
| DK (1) | DK40791A (en) |
| ES (1) | ES2028707A6 (en) |
| FI (1) | FI911176L (en) |
| FR (1) | FR2659255B1 (en) |
| GB (1) | GB2241658B (en) |
| HU (1) | HU209909B (en) |
| IT (1) | IT1251543B (en) |
| MX (1) | MX170860B (en) |
| NL (1) | NL9100402A (en) |
| NZ (1) | NZ237328A (en) |
| PL (1) | PL289336A1 (en) |
| PT (1) | PT96990A (en) |
| SE (1) | SE9100672L (en) |
| YU (1) | YU42391A (en) |
| ZA (1) | ZA911737B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4212097A1 (en) * | 1992-04-10 | 1993-10-14 | Boenisch Dietmar | Method and device for regenerating foundry sand |
| DE4224493A1 (en) * | 1992-07-24 | 1994-01-27 | Boenisch Dietmar | Regenerating process and equipment for foundry sand |
| CN105170901B (en) * | 2015-10-26 | 2017-05-17 | 中车长江车辆有限公司 | Large-size cast steel wet type clay sand treatment system and sand treatment method |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB172221A (en) * | 1920-12-06 | 1921-12-08 | William Beard Lake | An improved method and apparatus for treating, cleaning, or preparing sand for casting moulds |
| NL6411744A (en) * | 1964-10-09 | 1966-04-12 | ||
| US3312403A (en) * | 1964-12-31 | 1967-04-04 | Zifferer Lothar Robert | Machine and process for reclaiming foundry sand |
| US3826476A (en) * | 1968-11-15 | 1974-07-30 | Eirich G Maschf | Apparatus for moistening mixable materials |
| FR2115097B1 (en) * | 1970-11-30 | 1975-04-18 | Sigma Applic Produits | |
| CH631643A5 (en) * | 1978-04-14 | 1982-08-31 | Fischer Ag Georg | METHOD FOR REGENERATING OLD FOUNDRY SAND AND DEVICE FOR CARRYING OUT THE METHOD AND PRODUCT OF THE METHOD. |
| GB2047588A (en) * | 1979-04-06 | 1980-12-03 | Distillers Co Carbon Dioxide | Reclamation of foundry sand |
| EP0041774B1 (en) * | 1980-06-05 | 1983-06-22 | Foseco International Limited | Sand reclamation |
| DE3103030C2 (en) * | 1981-01-30 | 1984-05-03 | Klöckner-Humboldt-Deutz AG, 5000 Köln | Process for the extraction of foundry sand from used foundry sand |
| JPS58128247A (en) * | 1982-01-28 | 1983-07-30 | Nippon Chuzo Kk | Reconditioning method of old sand |
| JPS58128246A (en) * | 1982-01-28 | 1983-07-30 | Nippon Chuzo Kk | Reconditioning method of old sand |
| JPS59215243A (en) * | 1983-05-23 | 1984-12-05 | Nippon Kokan Keishiyu Kk | Reconditioning method of molding sand |
| DE3400648A1 (en) * | 1984-01-11 | 1985-07-18 | Delta Engineering Beratung und Vermittlung Gesellschaft mbH, Irdning | DEVICE AND METHOD FOR REGENERATING FOUNDRY SCRAP |
| EP0149595B1 (en) * | 1984-01-11 | 1988-03-23 | KGT GIESSEREITECHNIK GmbH | Process and machine for regenerating used foundry sand |
| DE3400656A1 (en) * | 1984-01-11 | 1985-07-18 | Delta Engineering Beratung und Vermittlung Gesellschaft mbH, Irdning | Process for the regeneration of waste foundry sands |
| US4709862A (en) * | 1987-01-30 | 1987-12-01 | Leidel Dieter S | Method of reclaiming green sand |
| DE3873522D1 (en) * | 1988-05-26 | 1992-09-10 | Pohl Giessereitechnik | METHOD AND DEVICE FOR REGENERATING FOUNDRY SAND. |
| CH679135A5 (en) * | 1989-12-06 | 1991-12-31 | Fischer Ag Georg | |
| CH681283A5 (en) * | 1990-08-16 | 1993-02-26 | Fischer Ag Georg |
-
1990
- 1990-03-08 CH CH749/90A patent/CH682056A5/de not_active IP Right Cessation
-
1991
- 1991-03-02 DE DE4106736A patent/DE4106736C2/en not_active Expired - Fee Related
- 1991-03-04 FR FR9102539A patent/FR2659255B1/en not_active Expired - Fee Related
- 1991-03-05 AT AT0046891A patent/AT401244B/en not_active IP Right Cessation
- 1991-03-05 NZ NZ237328A patent/NZ237328A/en unknown
- 1991-03-06 AU AU72675/91A patent/AU7267591A/en not_active Abandoned
- 1991-03-06 SE SE9100672A patent/SE9100672L/en not_active Application Discontinuation
- 1991-03-06 NL NL9100402A patent/NL9100402A/en not_active Application Discontinuation
- 1991-03-06 ES ES9100561A patent/ES2028707A6/en not_active Expired - Fee Related
- 1991-03-06 BE BE9100211A patent/BE1006644A5/en not_active IP Right Cessation
- 1991-03-07 DK DK040791A patent/DK40791A/en not_active Application Discontinuation
- 1991-03-07 PL PL28933691A patent/PL289336A1/en unknown
- 1991-03-07 MX MX024815A patent/MX170860B/en unknown
- 1991-03-07 JP JP3065299A patent/JPH06134546A/en active Pending
- 1991-03-07 HU HU91743A patent/HU209909B/en not_active IP Right Cessation
- 1991-03-07 CA CA002037737A patent/CA2037737A1/en not_active Abandoned
- 1991-03-08 ZA ZA911737A patent/ZA911737B/en unknown
- 1991-03-08 GB GB9104901A patent/GB2241658B/en not_active Expired - Fee Related
- 1991-03-08 IT ITMI910608A patent/IT1251543B/en active IP Right Grant
- 1991-03-08 YU YU42391A patent/YU42391A/en unknown
- 1991-03-08 PT PT96990A patent/PT96990A/en not_active Application Discontinuation
- 1991-03-08 FI FI911176A patent/FI911176L/en not_active Application Discontinuation
- 1991-03-08 BR BR919100949A patent/BR9100949A/en active Search and Examination
- 1991-03-08 CS CS91610A patent/CS61091A2/en unknown
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