JPH06134546A - Regenerating method of old molding sand - Google Patents
Regenerating method of old molding sandInfo
- Publication number
- JPH06134546A JPH06134546A JP3065299A JP6529991A JPH06134546A JP H06134546 A JPH06134546 A JP H06134546A JP 3065299 A JP3065299 A JP 3065299A JP 6529991 A JP6529991 A JP 6529991A JP H06134546 A JPH06134546 A JP H06134546A
- Authority
- JP
- Japan
- Prior art keywords
- sand
- old
- regeneration
- foundry sand
- used foundry
- 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.)
- Pending
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)
- Processing Of Solid Wastes (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
PURPOSE: To obtain a method capable of constantly maintaining the capacity of a regeneration apparatus and well regenerating mainly clay-bonded used foundry sand in a regeneration method for making the used foundry sand reusable in place of fresh sand. CONSTITUTION: The moisture of mainly the clay-bonded used foundry sand is set at 1 wt.% in maximum before the regeneration treatment and the used sand is repeatedly accelerated and decelerated and is rubbed against one another by a combined impact stress and shearing stress and is thus adhered to sand particles. The shell part consisting of a bonding material and additives is separated and is introduced to an outer side by using an air dust-removing device, by which the sand is subjected to the regeneration treatment.
Description
【０００１】[0001]
【産業上の利用分野】本発明は、主として粘土で結合し
た古い鋳物砂を新しい砂の代わりに再使用するため、古
い砂粒子に繰返し加速および減速を施し、衝撃応力と剪
断応力の組合せにより相互に摩擦させ、これにより砂粒
子に付着する、結合用物質および添加剤から成る外殻部
を分離させ、空気ダスト−除去装置を用いて外側に導く
ことにより再生処理する方法に関するものである。BACKGROUND OF THE INVENTION The present invention mainly uses clay-bonded old foundry sand in place of new sand, so that old sand particles are subjected to repeated acceleration and deceleration, and a combination of impact and shear stresses is used to reciprocate them. The present invention relates to a method for regenerating the outer shell portion made of a binding substance and an additive, which is adhered to the sand particles, by separating the outer shell portion and guiding the outer shell portion to the outside by using an air dust removing device.
【０００２】[0002]
【従来の技術】ケーシングから砂粒子を完全に遊離させ
るために、この外殻部がダストの形態で取り除かれるこ
とが絶対に必要である。ダストが除去されない場合に
は、衝撃応力および剪断応力が弱められ、再生処理は著
しくそこなわれる。形成されるダストの強力な除去にも
拘わらず、これに関して小塊が形成される場合には目的
は、達成されない。この等の塊はかきまぜ機により粉砕
されるが、このことは一定時間後にはじめてうまく行
く。かかる再生装置の処理能力はこのようにして低下す
る。BACKGROUND OF THE INVENTION It is absolutely necessary for this shell to be removed in the form of dust in order to completely release the sand particles from the casing. If the dust is not removed, the impact and shear stresses are weakened and the regeneration process is severely compromised. The object is not achieved if nodules are formed in this respect, despite the strong removal of the dust formed. These lumps are crushed by an agitator, but this only works after a certain time. The processing capacity of such a playback device is thus reduced.
【０００３】[0003]
【発明が解決しようとする課題】この従来技術から、本
発明の目的は、古い砂の再生がうまくでき且つ古い砂の
再生装置の処理能力を一定に維持する序文に記載した形
態の再生処理方法を提供することにある。SUMMARY OF THE INVENTION From this prior art, the object of the present invention is to regenerate the old sand well and to maintain the processing capacity of the old sand regenerator at a constant level. To provide.
【０００４】[0004]
【課題を解決するための手段】この目的は、再生処理前
古い砂の水分を最高で１重量％に設定する本発明により
達成される。砂の塊またはダストの塊は、一定時間後か
きまぜ機により粉砕すことができるということは、機械
的作用が熱的作用に変化することを示す。このようにし
て砂またはダストの塊に供給される熱は、電気的エネル
ギーの問題であり、経済的でない。従って、予め砂を乾
燥することが一層有利であり、これにより再生処理前水
分を最高で１重量％で１重量％以下とすべきである。This object is achieved according to the invention, in which the water content of the old sand before reclamation is set at a maximum of 1% by weight. The fact that a mass of sand or a mass of dust can be crushed with a stirrer after a certain period of time indicates that the mechanical action is converted into a thermal action. The heat thus supplied to the mass of sand or dust is a matter of electrical energy and not economical. Therefore, it is more advantageous to dry the sand beforehand, whereby the pre-regeneration water should be at most 1% by weight and below 1% by weight.
【０００５】[0005]
【発明の効果】上記条件下で塊の形成は行われず、古い
砂の再生装置はその全能力を維持する。Under the above conditions, no lump formation occurs and the old sand reclaimer maintains its full capacity.
Claims (1)
しい砂の代わりに再使用するため、古い砂粒子に繰返し
加速および減速を施し、衝撃応力と剪断応力の組合せに
より相互に摩擦させ、このようにして砂粒子に付着す
る、結合用物質と添加剤から成る外殻部を分離させ、空
気ダスト−除去装置を用いて外側に導くことにより再生
処理するに当り、再生処理前古い砂の水分を最高で１重
量％に設定することを特徴とする古い鋳物砂の再生処理
方法。1. To reuse old foundry sand, which is primarily clay bound, in place of new sand, the old sand particles are repeatedly accelerated and decelerated and rubbed against each other by a combination of impact and shear stresses. When the reclaiming process is carried out by separating the outer shell part consisting of the binding substance and the additive that adheres to the sand particles and guiding it to the outside using the air dust removing device, the water content of the old sand before the reclaiming process is removed. A method for recycling old foundry sand, which is characterized by setting the maximum to 1% by weight.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH749/90A CH682056A5 (en) | 1990-03-08 | 1990-03-08 | |
| CH00749/90-0 | 1990-03-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06134546A true JPH06134546A (en) | 1994-05-17 |
Family
ID=4194306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3065299A Pending JPH06134546A (en) | 1990-03-08 | 1991-03-07 | Regenerating method of old molding sand |
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) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170901A (en) * | 2015-10-26 | 2015-12-23 | 南车长江车辆有限公司 | Large-size cast steel wet type clay sand treatment system and sand treatment method |
Families Citing this family (2)
| 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 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58128246A (en) * | 1982-01-28 | 1983-07-30 | Nippon Chuzo Kk | Reconditioning method of old sand |
| JPS58128247A (en) * | 1982-01-28 | 1983-07-30 | Nippon Chuzo Kk | Reconditioning method of old sand |
Family Cites Families (17)
| 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 |
| JPS59215243A (en) * | 1983-05-23 | 1984-12-05 | Nippon Kokan Keishiyu Kk | Reconditioning method of molding sand |
| 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 |
| DE3400648A1 (en) * | 1984-01-11 | 1985-07-18 | Delta Engineering Beratung und Vermittlung Gesellschaft mbH, Irdning | DEVICE AND METHOD FOR REGENERATING FOUNDRY SCRAP |
| 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 BE BE9100211A patent/BE1006644A5/en not_active IP Right Cessation
- 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 AU AU72675/91A patent/AU7267591A/en not_active Abandoned
- 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 JP JP3065299A patent/JPH06134546A/en active Pending
- 1991-03-07 MX MX024815A patent/MX170860B/en unknown
- 1991-03-07 PL PL28933691A patent/PL289336A1/en unknown
- 1991-03-07 DK DK040791A patent/DK40791A/en not_active Application Discontinuation
- 1991-03-08 BR BR919100949A patent/BR9100949A/en active Search and Examination
- 1991-03-08 FI FI911176A patent/FI911176A/en not_active Application Discontinuation
- 1991-03-08 IT ITMI910608A patent/IT1251543B/en active IP Right Grant
- 1991-03-08 GB GB9104901A patent/GB2241658B/en not_active Expired - Fee Related
- 1991-03-08 ZA ZA911737A patent/ZA911737B/en unknown
- 1991-03-08 CS CS91610A patent/CS61091A2/en unknown
- 1991-03-08 PT PT96990A patent/PT96990A/en not_active Application Discontinuation
- 1991-03-08 YU YU42391A patent/YU42391A/en unknown
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58128246A (en) * | 1982-01-28 | 1983-07-30 | Nippon Chuzo Kk | Reconditioning method of old sand |
| JPS58128247A (en) * | 1982-01-28 | 1983-07-30 | Nippon Chuzo Kk | Reconditioning method of old sand |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105170901A (en) * | 2015-10-26 | 2015-12-23 | 南车长江车辆有限公司 | Large-size cast steel wet type clay sand treatment system and sand treatment method |
Also Published As
| Publication number | Publication date |
|---|---|
| YU42391A (en) | 1993-11-16 |
| NL9100402A (en) | 1991-10-01 |
| AU7267591A (en) | 1991-09-12 |
| HUT56748A (en) | 1991-10-28 |
| SE9100672D0 (en) | 1991-03-06 |
| ZA911737B (en) | 1991-12-24 |
| FI911176A0 (en) | 1991-03-08 |
| SE9100672L (en) | 1991-09-09 |
| GB9104901D0 (en) | 1991-04-24 |
| GB2241658A (en) | 1991-09-11 |
| ES2028707A6 (en) | 1992-07-01 |
| DE4106736C2 (en) | 1995-02-02 |
| CH682056A5 (en) | 1993-07-15 |
| PT96990A (en) | 1993-02-26 |
| FR2659255B1 (en) | 1995-05-24 |
| AT401244B (en) | 1996-07-25 |
| FI911176A (en) | 1991-09-09 |
| DE4106736A1 (en) | 1991-09-12 |
| MX170860B (en) | 1993-09-20 |
| BE1006644A5 (en) | 1994-11-08 |
| DK40791D0 (en) | 1991-03-07 |
| CA2037737A1 (en) | 1991-09-09 |
| DK40791A (en) | 1991-09-09 |
| BR9100949A (en) | 1991-11-05 |
| GB2241658B (en) | 1994-07-13 |
| ITMI910608A1 (en) | 1992-09-08 |
| HU910743D0 (en) | 1991-09-30 |
| NZ237328A (en) | 1993-03-26 |
| PL289336A1 (en) | 1991-10-21 |
| ATA46891A (en) | 1995-12-15 |
| HU209909B (en) | 1994-11-28 |
| ITMI910608A0 (en) | 1991-03-08 |
| CS61091A2 (en) | 1991-09-15 |
| IT1251543B (en) | 1995-05-17 |
| FR2659255A1 (en) | 1991-09-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR2483814A1 (en) | FOUNDRY SAND COMPOSITION, METHOD FOR REGENERATING SUCH A SAND, AND ELEMENTS FORMED THEREFROM | |
| US5219123A (en) | Process for the selective reclamation treatment of used foundry sand | |
| JPH0686967A (en) | Method for discarding flue gas residue | |
| JP6188502B2 (en) | Casting sand recycling process | |
| JP2006068815A5 (en) | ||
| JP2904413B2 (en) | Casting sand low-temperature regeneration method and equipment therefor | |
| US3857201A (en) | Regenerating of casting sand | |
| RU2030949C1 (en) | Used sand mixture and/or core mixture processing method | |
| JPH06134546A (en) | Regenerating method of old molding sand | |
| KR20020061534A (en) | A method for making sand covered with bentonite, the sand, and a method for recycling molding sand for a mold using the sand covered by bentonite | |
| GB2238740A (en) | Removing dust from used foundry sand scouring apparatus | |
| AU633380B2 (en) | Method for the regenerative treatment of mainly clay-bound foundry old sand | |
| US3738415A (en) | Method of molding articles and reclaiming the foundry sand used | |
| JP7455807B2 (en) | Recovery of sand, bentonite, and organic matter from foundry sand waste | |
| JPH0413438A (en) | Method and system for regenerating used sand at foundry | |
| CA2037736A1 (en) | Process for the regeneration treatment of predominantly clay-bonded casting old sand | |
| JPS58128246A (en) | Reconditioning method of old sand | |
| JPS6257733A (en) | Molding sand reconditioning device for cold box method | |
| JPH08243682A (en) | Method for reconditioning used molding sand | |
| JPS58937B2 (en) | Method for recycling foundry sand using inorganic binder | |
| JP3794572B2 (en) | Method for producing water purification material or soil improvement material | |
| US3318712A (en) | Process for reconstituting molding sand for founding operations | |
| SU996053A1 (en) | Electric corundum powder regeneration method | |
| SU1458061A1 (en) | Method of regeneration of waste moulding and core sands | |
| JPH05329576A (en) | Method for regenerating molding sand |