NL9100402A - METHOD FOR SUBJECTING TO A REGENERATING TREATMENT OF FOUNDATION SAND FINISHED WITH CLAY CONNECTIONS. - Google Patents
METHOD FOR SUBJECTING TO A REGENERATING TREATMENT OF FOUNDATION SAND FINISHED WITH CLAY CONNECTIONS. Download PDFInfo
- Publication number
- NL9100402A NL9100402A NL9100402A NL9100402A NL9100402A NL 9100402 A NL9100402 A NL 9100402A NL 9100402 A NL9100402 A NL 9100402A NL 9100402 A NL9100402 A NL 9100402A NL 9100402 A NL9100402 A NL 9100402A
- Authority
- NL
- Netherlands
- Prior art keywords
- sand
- subjecting
- clay
- regenerating treatment
- finished
- Prior art date
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
- B22C5/10—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)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Processing Of Solid Wastes (AREA)
Description
UITTRSKSSl·.EXTRSKSSl ·.
Werkwijze voor het onderwerpen aan een regenererende behandeling van overwegend met kleigebonden afgewerkt gieterijzand voor hernieuwd gebruik daarvan, waarbij het watergehalte van het te behandelen zand op niet meer dan één gewichtsprocent wordt verlaagd, zodanig dat een economische behandeling gewaarborgd is doordat de knolvorming tijdens de behandeling wordt verhinderd.Method for subjecting a regenerating treatment of predominantly clay-bound foundry sand for reuse thereof, wherein the water content of the sand to be treated is reduced by no more than one weight percent, such that an economical treatment is ensured by the formation of tuber during the treatment prevented.
Titel: Werkwijze voor het onderwerpen aan een regenereerbehandeling van overwegend met kleigebonden afgewerkt gieterijzand.Title: Method for subjecting a regeneration treatment of predominantly clay-bound foundry sand.
De onderhavige uitvinding betreft een werkwijze voor het onderwerpen aan een regenereerbehandeling van overwegend met kleigebonden afgewerkt gieterijzand voor hernieuwd gebruik daarvan in plaats van nieuw zand, waarbij de zandkorrels herhaalde malen versneld en afgeremd en door gecombineerde slag- en afschuivende belasting langs elkander geschuurd en daardoor van de op de zandkorrels hechtende omhulling een bindmiddel en toeslagstoffen onder gebruikmaking van een naarbuiten reikende, pneumatische ontstoffingsinrichting worden bevrijd.The present invention relates to a method of subjecting a regeneration treatment of predominantly clay-bonded foundry sand for reuse thereof instead of new sand, wherein the sand grains are repeatedly accelerated and braked and sanded against each other by combined impact and shearing load and therefore of the casing adhering to the sand grains liberates a binder and additives using an outwardly extending pneumatic dedusting device.
Voor het volledig bevrijden van de zandkorrels van de omhulling is het beslist noodzakelijk, dat die omhulling in stofvorm wordt af gezogen. Wanneer dat stof niet wordt verwijderd, wordt slagwerking en afschuivende belasting gedempt en in aanzienlijke mate afbreuk gedaan aan de regenererende behandeling.In order to completely free the sand grains from the casing, it is imperative that the casing be extracted in dust form. If that dust is not removed, impact and shear loading is damped and the regenerating treatment is significantly impaired.
Ondanks een intensieve afzuiging van het zich vormende stof bereikt men het doel ook niet wanneer zich daarbij kleine knollen vormen. Men kan die knollen door middel van een roerinrichting stukslaan, hetgeen echter eerst na een bepaald tijdsverloop gelukt. De passerende hoeveelheid, d.w.z. de capaciteit van een dergelijke regenereerinrichting neemt daardoor af.Despite intensive suction of the forming dust, the goal is not reached when small tubers are formed. These tubers can be broken by means of a stirrer, but this is only successful after a certain period of time. The passing amount, i.e. the capacity of such a regenerator, decreases thereby.
Uitgaande van deze stand van de techniek licht aan de onderhavige uitvinding het probleem ten grondslag, een werkwijze van de in de aanhef vermelde soortenverschaffer, welke een goede regeneerbehandeling van afgewerkt zand veroorlooft en de capaciteit van die regenereerinrichting voor afgewerkt zand constant op peil houdt.Starting from this prior art, the present invention underlies the problem, a method of the species provider mentioned in the preamble, which permits a good regeneration treatment of finished sand and maintains the capacity of that regenerator for finished sand constantly.
Dit overeenkomstig de uitvinding aan de orde gestelde probleem wordt volgens de uitvinding opgelost, doordat het watergehalte van het afgewerkte zand voor de regenereerbehandeling op ten hoogste één gewichtsprocent water wordt ingesteld.This problem raised in accordance with the invention is solved according to the invention in that the water content of the spent sand for the regeneration treatment is adjusted to at most one weight percent water.
Het feit dat de zand- resp. de stofknollen door hun roerinrichting na een bepaalde tijd kunnen worden stukgeslagen duidt erop, dat de mechanische werking in een warmtewerking overgaat. De aan de zand- resp. stofknollen aldus toegevoerde warmte is niet economisch aangezien het daarbij om electrische energie gaat.The fact that the sand resp. the dust tubers can be shattered by their stirrer after a certain period of time indicates that the mechanical action changes into a heat effect. The on the sand resp. heat tubers thus supplied are not economical since they are electrical energy.
Het is derhalve voordeliger, het afgewerkte zand tevoren te drogen, waarbij het watergehalte voor de regenererende behandeling bij ten hoogste 1 gewichtsprocent en lager dient te liggen. Onder deze omstandigheden komt het niet tot knnolvorming en behoudt de regenereerinstallatie voor afgewerkt zand zijn volle capaciteit.It is therefore more advantageous to pre-dry the finished sand, the water content for the regenerating treatment having to be at most 1% by weight and lower. Under these conditions, tuber formation does not occur and the regeneration installation for finished sand retains its full capacity.
Claims (1)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH74990 | 1990-03-08 | ||
| CH749/90A CH682056A5 (en) | 1990-03-08 | 1990-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL9100402A true NL9100402A (en) | 1991-10-01 |
Family
ID=4194306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL9100402A NL9100402A (en) | 1990-03-08 | 1991-03-06 | METHOD FOR SUBJECTING TO A REGENERATING TREATMENT OF FOUNDATION SAND FINISHED WITH CLAY CONNECTIONS. |
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) | FI911176A (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 |
| ATE3821T1 (en) * | 1980-06-05 | 1983-07-15 | Foseco International Limited | SAND REGENERATION. |
| 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 |
| DE3561928D1 (en) * | 1984-01-11 | 1988-04-28 | Gsr Sandregenerierungsgesellsc | 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 |
| EP0343272B1 (en) * | 1988-05-26 | 1992-08-05 | Pohl Giessereitechnik | Method of and installation for regeneration of returned sand of foundry |
| 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 ES ES9100561A patent/ES2028707A6/en not_active Expired - Fee Related
- 1991-03-06 BE BE9100211A patent/BE1006644A5/en not_active IP Right Cessation
- 1991-03-06 NL NL9100402A patent/NL9100402A/en not_active Application Discontinuation
- 1991-03-07 JP JP3065299A patent/JPH06134546A/en active Pending
- 1991-03-07 MX MX024815A patent/MX170860B/en unknown
- 1991-03-07 DK DK040791A patent/DK40791A/en not_active Application Discontinuation
- 1991-03-07 CA CA002037737A patent/CA2037737A1/en not_active Abandoned
- 1991-03-07 HU HU91743A patent/HU209909B/en not_active IP Right Cessation
- 1991-03-07 PL PL28933691A patent/PL289336A1/en unknown
- 1991-03-08 ZA ZA911737A patent/ZA911737B/en unknown
- 1991-03-08 BR BR919100949A patent/BR9100949A/en active Search and Examination
- 1991-03-08 IT ITMI910608A patent/IT1251543B/en active IP Right Grant
- 1991-03-08 PT PT96990A patent/PT96990A/en not_active Application Discontinuation
- 1991-03-08 GB GB9104901A patent/GB2241658B/en not_active Expired - Fee Related
- 1991-03-08 YU YU42391A patent/YU42391A/en unknown
- 1991-03-08 FI FI911176A patent/FI911176A/en not_active Application Discontinuation
- 1991-03-08 CS CS91610A patent/CS61091A2/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| AT401244B (en) | 1996-07-25 |
| JPH06134546A (en) | 1994-05-17 |
| SE9100672D0 (en) | 1991-03-06 |
| FI911176A0 (en) | 1991-03-08 |
| GB9104901D0 (en) | 1991-04-24 |
| HU209909B (en) | 1994-11-28 |
| HUT56748A (en) | 1991-10-28 |
| DK40791D0 (en) | 1991-03-07 |
| FR2659255B1 (en) | 1995-05-24 |
| ES2028707A6 (en) | 1992-07-01 |
| ITMI910608A0 (en) | 1991-03-08 |
| CH682056A5 (en) | 1993-07-15 |
| DE4106736C2 (en) | 1995-02-02 |
| BR9100949A (en) | 1991-11-05 |
| ATA46891A (en) | 1995-12-15 |
| GB2241658B (en) | 1994-07-13 |
| DE4106736A1 (en) | 1991-09-12 |
| ZA911737B (en) | 1991-12-24 |
| PL289336A1 (en) | 1991-10-21 |
| IT1251543B (en) | 1995-05-17 |
| AU7267591A (en) | 1991-09-12 |
| SE9100672L (en) | 1991-09-09 |
| BE1006644A5 (en) | 1994-11-08 |
| NZ237328A (en) | 1993-03-26 |
| HU910743D0 (en) | 1991-09-30 |
| FI911176A (en) | 1991-09-09 |
| ITMI910608A1 (en) | 1992-09-08 |
| CA2037737A1 (en) | 1991-09-09 |
| CS61091A2 (en) | 1991-09-15 |
| YU42391A (en) | 1993-11-16 |
| GB2241658A (en) | 1991-09-11 |
| MX170860B (en) | 1993-09-20 |
| PT96990A (en) | 1993-02-26 |
| FR2659255A1 (en) | 1991-09-13 |
| DK40791A (en) | 1991-09-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| BV | The patent application has lapsed |