DD297087A5 - Verfahren zum wiederaufbereiten von giessereisand - Google Patents
Verfahren zum wiederaufbereiten von giessereisand Download PDFInfo
- Publication number
- DD297087A5 DD297087A5 DD90343469A DD34346990A DD297087A5 DD 297087 A5 DD297087 A5 DD 297087A5 DD 90343469 A DD90343469 A DD 90343469A DD 34346990 A DD34346990 A DD 34346990A DD 297087 A5 DD297087 A5 DD 297087A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- sand
- regeneration
- neutralizing
- neutralization
- per
- Prior art date
Links
- 239000004576 sand Substances 0.000 title claims abstract description 56
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 20
- 230000008929 regeneration Effects 0.000 claims abstract description 16
- 238000011069 regeneration method Methods 0.000 claims abstract description 16
- 239000011230 binding agent Substances 0.000 claims abstract description 14
- 239000002253 acid Substances 0.000 claims abstract description 8
- 238000004064 recycling Methods 0.000 claims abstract 2
- 230000003472 neutralizing effect Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000004140 cleaning Methods 0.000 claims description 4
- 230000002378 acidificating effect Effects 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims 4
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims 2
- 239000002585 base Substances 0.000 claims 1
- 238000001914 filtration Methods 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 230000001172 regenerating effect Effects 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 41
- 239000000243 solution Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 239000013505 freshwater Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 239000006004 Quartz sand Substances 0.000 description 2
- 239000000440 bentonite Substances 0.000 description 2
- 229910000278 bentonite Inorganic materials 0.000 description 2
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 239000008237 rinsing water Substances 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 238000004448 titration Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 239000000383 hazardous chemical Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000010450 olivine Substances 0.000 description 1
- 229910052609 olivine Inorganic materials 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000012487 rinsing solution Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000005029 sieve analysis Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 229910052726 zirconium Inorganic materials 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
- B22C5/18—Plants for preparing mould materials
- B22C5/185—Plants for preparing mould materials comprising a wet reclamation step
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
- B22C1/16—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds characterised by the use of binding agents; Mixtures of binding agents
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
- Processing Of Solid Wastes (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Treatment Of Sludge (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4004553A DE4004553C1 (enrdf_load_stackoverflow) | 1990-02-14 | 1990-02-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DD297087A5 true DD297087A5 (de) | 1992-01-02 |
Family
ID=6400137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD90343469A DD297087A5 (de) | 1990-02-14 | 1990-08-15 | Verfahren zum wiederaufbereiten von giessereisand |
Country Status (15)
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4129863A1 (de) * | 1991-09-07 | 1993-03-11 | Hanf Carl Elino Ind Ofenbau | Verfahren und vorrichtung zur aufbereitung von bentonitgebundenem giesserei-altsand |
| DE19927107A1 (de) * | 1999-06-14 | 2000-12-21 | Fischer Georg Gmbh & Co Kg | Verfahren und Vorrichtung zur Verminderung der Geruchsemissionen von Giessereianlagen |
| EP1222978A3 (en) * | 2001-01-15 | 2007-10-17 | Sintokogio, Ltd. | 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 |
| DE102007027298A1 (de) * | 2007-06-11 | 2008-12-18 | Maschinenfabrik Gustav Eirich Gmbh & Co. Kg | Verfahren zur Aufbereitung von Formsand |
| CN102059319B (zh) * | 2011-01-19 | 2012-12-19 | 昆明理工大学 | 一种树脂旧砂的联合再生方法 |
| CN102500458B (zh) * | 2011-11-28 | 2014-07-09 | 河海大学 | 一种洗沙方法及其专用装置 |
| CN102615243B (zh) * | 2012-03-27 | 2013-09-18 | 华中科技大学 | 一种铸造旧砂湿法间歇式再生方法及其设备 |
| JP2016147287A (ja) * | 2015-02-12 | 2016-08-18 | マツダ株式会社 | 鋳物砂の再生方法および研磨装置 |
| EP3586995B2 (de) * | 2018-06-29 | 2024-04-24 | Nemak, S.A.B. de C.V. | Verfahren zur aufbereitung einer giessereisandmischung |
| JP7142563B2 (ja) * | 2018-12-26 | 2022-09-27 | 伊藤忠セラテック株式会社 | 回収砂の再生方法 |
| EP3797896A1 (en) * | 2019-09-27 | 2021-03-31 | Finn Recycling OY | Cleaning sand used at foundry |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US414388A (en) * | 1889-11-05 | emmens | ||
| DE2233111C3 (de) * | 1972-07-06 | 1974-11-28 | Hermann 2105 Seevetal Jacob | Verfahren und Vorrichtung zum Regenerieren von kunstharzgebundenem Gießereialtsand |
| US4113510A (en) * | 1974-06-07 | 1978-09-12 | Societe D'applications De Procedes Industriels Et Chimiques S.A.P.I.C. | Process for regenerating foundry sand |
| CA1050209A (en) * | 1974-12-16 | 1979-03-13 | Julius M. Bleuenstein | Sand reclamation and purification |
| JPS5292823A (en) * | 1976-02-02 | 1977-08-04 | Hitachi Ltd | Old sand cleaning reproduction process |
| DE2656672C2 (de) * | 1976-12-15 | 1978-09-21 | Daimler-Benz Ag, 7000 Stuttgart | Verfahren beim Regenerieren von Kernsand |
| CH631643A5 (de) * | 1978-04-14 | 1982-08-31 | Fischer Ag Georg | Verfahren zur regenerierung von giesserei-altsand sowie einrichtung zur durchfuehrung des verfahrens und erzeugnis des verfahrens. |
| US4401638A (en) * | 1981-12-21 | 1983-08-30 | Materias Primas, Monterrey, S.A. | Process for purifying silica sand |
| GB8317669D0 (en) * | 1983-06-29 | 1983-08-03 | British Ind Sand Ltd | Chemical treatment of sand |
| EP0152230A1 (en) * | 1984-02-03 | 1985-08-21 | Steel Castings Research And Trade Association | Reclamation of foundry sands |
-
1990
- 1990-02-14 DE DE4004553A patent/DE4004553C1/de not_active Expired - Lifetime
- 1990-04-26 EP EP19900107984 patent/EP0446402A1/de not_active Withdrawn
- 1990-05-03 CS CS902191A patent/CS219190A2/cs unknown
- 1990-05-07 PL PL28508390A patent/PL285083A1/xx unknown
- 1990-05-16 JP JP2126543A patent/JPH03238141A/ja active Pending
- 1990-05-25 PT PT94164A patent/PT94164A/pt not_active Application Discontinuation
- 1990-05-31 NO NO90902410A patent/NO902410L/no unknown
- 1990-06-06 FI FI902822A patent/FI902822L/fi not_active Application Discontinuation
- 1990-06-12 HU HU903815A patent/HUT58008A/hu unknown
- 1990-06-19 DK DK149890A patent/DK149890A/da not_active IP Right Cessation
- 1990-06-27 KR KR1019900009544A patent/KR910015345A/ko not_active Ceased
- 1990-06-28 BR BR909003152A patent/BR9003152A/pt unknown
- 1990-07-05 CN CN90103344A patent/CN1054021A/zh active Pending
- 1990-08-07 CA CA002022769A patent/CA2022769A1/en not_active Abandoned
- 1990-08-15 DD DD90343469A patent/DD297087A5/de not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| DE4004553C1 (enrdf_load_stackoverflow) | 1991-10-10 |
| PT94164A (pt) | 1991-09-30 |
| DK149890D0 (da) | 1990-06-19 |
| BR9003152A (pt) | 1991-11-12 |
| KR910015345A (ko) | 1991-09-30 |
| EP0446402A1 (de) | 1991-09-18 |
| FI902822A7 (fi) | 1991-08-15 |
| CN1054021A (zh) | 1991-08-28 |
| FI902822A0 (fi) | 1990-06-06 |
| NO902410L (no) | 1991-08-15 |
| CS219190A2 (en) | 1991-09-15 |
| PL285083A1 (en) | 1991-10-07 |
| HUT58008A (en) | 1992-01-28 |
| FI902822L (fi) | 1991-08-15 |
| DK149890A (da) | 1991-08-15 |
| CA2022769A1 (en) | 1991-08-15 |
| NO902410D0 (no) | 1990-05-31 |
| HU903815D0 (en) | 1990-11-28 |
| JPH03238141A (ja) | 1991-10-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ENJ | Ceased due to non-payment of renewal fee |