EP2192999A1 - Selection of a used sand stream occurring after casting production and device therefor - Google Patents
Selection of a used sand stream occurring after casting production and device thereforInfo
- Publication number
- EP2192999A1 EP2192999A1 EP08804891A EP08804891A EP2192999A1 EP 2192999 A1 EP2192999 A1 EP 2192999A1 EP 08804891 A EP08804891 A EP 08804891A EP 08804891 A EP08804891 A EP 08804891A EP 2192999 A1 EP2192999 A1 EP 2192999A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- screen
- drum
- sand
- screen drum
- thermally
- 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.)
- Withdrawn
Links
- 239000004576 sand Substances 0.000 title claims abstract description 66
- 238000005266 casting Methods 0.000 title claims description 9
- 238000004519 manufacturing process Methods 0.000 title description 3
- 238000005192 partition Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 26
- 238000012216 screening Methods 0.000 claims description 24
- 239000012778 molding material Substances 0.000 claims description 8
- 238000007599 discharging Methods 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims 6
- 239000003110 molding sand Substances 0.000 claims 4
- 239000011230 binding agent Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 239000002245 particle Substances 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000004927 clay Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
- 239000002699 waste material Substances 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
- B22C5/06—Machines or devices specially designed for dressing or handling the mould material so far as specially adapted for that purpose by sieving or magnetic separating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/22—Revolving drums
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices
- B07B13/14—Details or accessories
- B07B13/16—Feed or discharge arrangements
Definitions
- Casting in clay-bonded sand molds often uses numerous sand cores for certain castings, such as engine blocks, cylinder heads, pump housings, and others.
- the cores remain mostly as sand tubers, but also as spent, free-flowing single grains. The used sand is reprocessed into the molding material.
- the device according to the invention thus consists essentially only of two simple components: the rotating screen drum and the bunker-like collecting housing adapted to this, which are separated from one another in at least two
- Housing sections is divided. The amount of equipment and mechanics is low.
- the selection is continuous and automatic.
- the location (s) in the collection housing, where it is subdivided into separate sections, are exactly adjusted to the screening process that takes place in the sieve drum.
- FIG. 1 shows the device in a vertical section in a side view
- FIG. 2 shows the screening device as seen in the direction of the entry end of the screening drum
- Figure 3a, 3b shows a device for selecting sand in two 90 ° views.
- the polygon screen can be seen at the top and the partition element in FIG. 3b at 79 '.
- the screening device 1 comprises a horizontally arranged screening drum 2, the horizontal axis 3 of which is mounted in a housing enclosing the sieve drum 7, which is open at the bottom.
- the inlet end 4 of the screening drum 2 serves to supply the waste sand stream obtained after completion of the casting and demolding operation of the cast parts, which is indicated in FIG. 1 only by the arrow 9.
- a funnel 9a serve for feeding the used sand stream.
- the opposite outlet end 5 of the screening drum 2 is used for discharging during the passage of the drum also by the friction occurring and the existing centrifugal forces not in individual grains dissected sand lumps or dumplings, as indicated by the arrow 10.
- the screen drum 2 is formed polygonal in the illustrated preferred embodiment, as best seen in Figure 2 can be seen.
- the extension of the screening drum 2 can be done gradually, but preferably steadily.
- the diameter enlargement also has the advantage that the friction and the action of centrifugal forces on the sand flow, which promote the singulation and screening of the sand grains, increase towards the rear area of the drum.
- the jacket of the screening drum is supported on the drum shaft 3 by radial struts 6.
- the drum shaft 6 is driven by a drive device 8 near the
- Exit end 5 constantly set in rotation.
- the separated and falling down through the screen wall of the screen drum 2 sand grains fall into a bunker-like collecting housing 11 arranged below the screen drum, whose width and length correspond to the width and length of the screen drum 2.
- the upper edge 12 of the housing 11 is located only slightly below the bottom of the screening device 1.
- the front wall is indicated at 12a and the rear wall at 12b.
- a partition wall 13 whereby a first section 20 is formed, in which the screened in section A single grains are collected. Behind the partition wall 13, a second section 21 of the collecting housing is formed by the latter, in which the individual sand grains which have been sifted out in the remaining section B of the screening drum are collected.
- Drum section B is promoted while the friction and centrifugal forces is exposed, which promotes the grain separation and the screening process.
- the partition wall 13 in the collecting housing 11 begins at the top with a separating edge 14 and has in the lower region 15 two in opposite directions inclined guide elements 15a and 15b, which the groupage from each section 20 and 21 on a down in the section arranged discharge device, such as Derive conveyor belt 16 or 17.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combined Means For Separation Of Solids (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102007046779A DE102007046779A1 (en) | 2007-09-29 | 2007-09-29 | Selecting an old sand stream that accumulates after casting |
PCT/EP2008/063040 WO2009043838A1 (en) | 2007-09-29 | 2008-09-29 | Selection of a used sand stream occurring after casting production and device therefor |
Publications (1)
Publication Number | Publication Date |
---|---|
EP2192999A1 true EP2192999A1 (en) | 2010-06-09 |
Family
ID=40192873
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP08804891A Withdrawn EP2192999A1 (en) | 2007-09-29 | 2008-09-29 | Selection of a used sand stream occurring after casting production and device therefor |
Country Status (5)
Country | Link |
---|---|
EP (1) | EP2192999A1 (en) |
CN (1) | CN101848778B (en) |
BR (1) | BRPI0817613A2 (en) |
DE (1) | DE102007046779A1 (en) |
WO (1) | WO2009043838A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110403216A (en) * | 2019-08-30 | 2019-11-05 | 淮北市乾乾生物科技有限公司 | A kind of livestock feed production feed granules curing sterilizing device and its sterilizing methods |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101862810B (en) * | 2010-06-07 | 2012-11-21 | 安徽省宁国新宁实业有限公司 | Cast used sand and slag recycling equipment |
CN102581218B (en) * | 2012-03-28 | 2013-11-06 | 濮阳市龙昊机械有限公司 | Roller combined gyration-type used sand reconditioning system |
CN102744197B (en) * | 2012-07-30 | 2014-04-16 | 无锡鹰普精密铸造有限公司 | Drum sand sprinkling machine |
DE102015115486A1 (en) | 2015-09-14 | 2017-03-16 | Künkel Wagner Germany Gmbh | Fractional selection of an used sand stream after casting |
CN108188342A (en) * | 2018-03-23 | 2018-06-22 | 厦门格欧博新材料科技有限公司 | A kind of regeneration method of old sand and the device for removing old sand surface impurity |
CN114178164B (en) * | 2021-11-11 | 2023-08-11 | 青铜峡市晨迪石英砂精加工有限公司 | Energy-saving and environment-friendly gravel refining and screening device |
CN114833302A (en) * | 2022-03-28 | 2022-08-02 | 朱常妮 | Rotary metal slag separating device for casting sand for metal casting |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1666932A (en) * | 1928-04-24 | A coepoea | ||
GB2076698B (en) * | 1980-05-16 | 1983-10-26 | Motherwell Mechanical & Electr | Apparatus for segregating pulverised material |
DE3151646A1 (en) * | 1981-12-28 | 1983-07-07 | BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe | Process and equipment for reprocessing moist foundry sand |
AT375564B (en) * | 1983-05-05 | 1984-08-27 | Hinteregger & Soehne Bauges | COARSE CLASSIFICATION |
SU1570833A2 (en) * | 1988-03-28 | 1990-06-15 | Предприятие П/Я М-5079 | Arrangement for screening loose materials |
DE4121585C1 (en) * | 1991-06-29 | 1992-08-06 | Lintec Gmbh & Co Kg, 2114 Hollenstedt, De | |
GB2301051A (en) * | 1995-05-26 | 1996-11-27 | Pinemonte Ltd | A mobile mineral separator |
DE102005055877B4 (en) | 2004-11-23 | 2007-11-08 | Künkel-Wagner Prozesstechnologie GmbH | Separation of cast body and mold by selective unpacking |
CN200939496Y (en) * | 2006-03-10 | 2007-08-29 | 周锦照 | Spiral viberating all-purpose regenerator |
-
2007
- 2007-09-29 DE DE102007046779A patent/DE102007046779A1/en not_active Ceased
-
2008
- 2008-09-29 EP EP08804891A patent/EP2192999A1/en not_active Withdrawn
- 2008-09-29 CN CN200880109281.7A patent/CN101848778B/en not_active Expired - Fee Related
- 2008-09-29 BR BRPI0817613A patent/BRPI0817613A2/en not_active IP Right Cessation
- 2008-09-29 WO PCT/EP2008/063040 patent/WO2009043838A1/en active Application Filing
Non-Patent Citations (1)
Title |
---|
See references of WO2009043838A1 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110403216A (en) * | 2019-08-30 | 2019-11-05 | 淮北市乾乾生物科技有限公司 | A kind of livestock feed production feed granules curing sterilizing device and its sterilizing methods |
Also Published As
Publication number | Publication date |
---|---|
DE102007046779A1 (en) | 2009-11-12 |
BRPI0817613A2 (en) | 2015-09-15 |
CN101848778B (en) | 2014-07-02 |
CN101848778A (en) | 2010-09-29 |
WO2009043838A1 (en) | 2009-04-09 |
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Legal Events
Date | Code | Title | Description |
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PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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17P | Request for examination filed |
Effective date: 20100419 |
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AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR |
|
AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
|
DAX | Request for extension of the european patent (deleted) | ||
17Q | First examination report despatched |
Effective date: 20120807 |
|
19U | Interruption of proceedings before grant |
Effective date: 20140901 |
|
19W | Proceedings resumed before grant after interruption of proceedings |
Effective date: 20150401 |
|
19W | Proceedings resumed before grant after interruption of proceedings |
Effective date: 20150601 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: KUENKEL WAGNER GERMANY GMBH |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20160401 |