EP2192999A1 - Sélection d'un sable de décochage résultant de la production de pièces coulées et dispositif correspondant - Google Patents

Sélection d'un sable de décochage résultant de la production de pièces coulées et dispositif correspondant

Info

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Withdrawn
Application number
EP08804891A
Other languages
German (de)
English (en)
Inventor
Frank Iburg
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kuenkel Wagner Germany GmbH
Original Assignee
Kuenkel-Wagner Prozesstechnologie GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kuenkel-Wagner Prozesstechnologie GmbH filed Critical Kuenkel-Wagner Prozesstechnologie GmbH
Publication of EP2192999A1 publication Critical patent/EP2192999A1/fr
Withdrawn legal-status Critical Current

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
    • B22C5/06—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

L'invention concerne un dispositif pour sélectionner et séparer le sable de décochage fortement sollicité thermiquement, à proportion élevée de sable de noyautage, d'un sable de décochage peu sollicité thermiquement dans la totalité du sable de décochage résultant du démoulage de pièces coulées. Un tambour cribleur (2) pouvant être entraîné en rotation autour d'un axe horizontal et présentant une extrémité d'entrée (4) sert à l'alimentation en sable de décochage (9). Le tambour cribleur présente en outre une extrémité de sortie (5) pour l'évacuation de mottes de sable qui n'ont pas été entièrement désagrégées lors du passage dans le tambour cribleur. Sous le tambour rotatif se trouve un carter collecteur (11) en forme de trémie dont la largeur et la longueur correspondent respectivement à au moins la largeur et la longueur du tambour cribleur (2). Dans le carter (11) est placé au moins un élément paroi séparatrice (13) orienté transversalement et perpendiculairement à l'axe de rotation (3) du tambour cribleur (2). Cet élément subdivise l'espace intérieur du carter collecteur (11), par rapport à la longueur du tambour cribleur (9), en au moins deux sections (20, 21) dont la largeur et la position relative sont respectivement ajustées à un segment de longueur défini (A, B) du tambour cribleur. Dans la zone inférieure de chacune des sections se trouve un dispositif (indépendant) (16, 17) servant à évacuer la quantité de sable de décochage éliminée par criblage qui est collectée dans la section correspondante.
EP08804891A 2007-09-29 2008-09-29 Sélection d'un sable de décochage résultant de la production de pièces coulées et dispositif correspondant Withdrawn EP2192999A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102007046779A DE102007046779A1 (de) 2007-09-29 2007-09-29 Selektieren eines nach der Gussherstellung anfallenden Altsandstroms
PCT/EP2008/063040 WO2009043838A1 (fr) 2007-09-29 2008-09-29 Sélection d'un sable de décochage résultant de la production de pièces coulées et dispositif correspondant

Publications (1)

Publication Number Publication Date
EP2192999A1 true EP2192999A1 (fr) 2010-06-09

Family

ID=40192873

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08804891A Withdrawn EP2192999A1 (fr) 2007-09-29 2008-09-29 Sélection d'un sable de décochage résultant de la production de pièces coulées et dispositif correspondant

Country Status (5)

Country Link
EP (1) EP2192999A1 (fr)
CN (1) CN101848778B (fr)
BR (1) BRPI0817613A2 (fr)
DE (1) DE102007046779A1 (fr)
WO (1) WO2009043838A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110403216A (zh) * 2019-08-30 2019-11-05 淮北市乾乾生物科技有限公司 一种畜牧饲料生产用饲料颗粒熟化灭菌装置及其灭菌方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101862810B (zh) * 2010-06-07 2012-11-21 安徽省宁国新宁实业有限公司 一种铸造旧砂、炉渣回收处理设备
CN102581218B (zh) * 2012-03-28 2013-11-06 濮阳市龙昊机械有限公司 滚筒组合式旋动型旧砂再生处理系统
CN102744197B (zh) * 2012-07-30 2014-04-16 无锡鹰普精密铸造有限公司 滚筒淋砂机
DE102015115486A1 (de) 2015-09-14 2017-03-16 Künkel Wagner Germany Gmbh Fraktionelles Selektieren eines Altsandstroms nach einer Gussherstellung
CN108188342A (zh) * 2018-03-23 2018-06-22 厦门格欧博新材料科技有限公司 一种旧砂的再生方法和用于除去旧砂表面杂质的装置
CN114178164B (zh) * 2021-11-11 2023-08-11 青铜峡市晨迪石英砂精加工有限公司 一种节能环保的砂石细化筛选装置
CN114833302A (zh) * 2022-03-28 2022-08-02 朱常妮 一种金属铸造用铸造砂旋转式金属碎渣分离装置

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US1666932A (en) * 1928-04-24 A coepoea
GB2076698B (en) * 1980-05-16 1983-10-26 Motherwell Mechanical & Electr Apparatus for segregating pulverised material
DE3151646A1 (de) * 1981-12-28 1983-07-07 BMD Badische Maschinenfabrik Durlach GmbH, 7500 Karlsruhe Verfahren und vorrichtung zum aufbereiten von feuchtem giesserei-formsand
AT375564B (de) * 1983-05-05 1984-08-27 Hinteregger & Soehne Bauges Grobklassiereinrichtung
SU1570833A2 (ru) * 1988-03-28 1990-06-15 Предприятие П/Я М-5079 Устройство дл просеивани сыпучих материалов
DE4121585C1 (fr) * 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
DE102005055876B4 (de) 2004-11-23 2016-11-24 Künkel Wagner Germany Gmbh Vorrichtungskombination und Verfahren zum Trennen von Gusskörper und Form durch ein selektives Auspacken
CN200939496Y (zh) * 2006-03-10 2007-08-29 周锦照 螺旋振动新全能再生机

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009043838A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110403216A (zh) * 2019-08-30 2019-11-05 淮北市乾乾生物科技有限公司 一种畜牧饲料生产用饲料颗粒熟化灭菌装置及其灭菌方法

Also Published As

Publication number Publication date
CN101848778B (zh) 2014-07-02
BRPI0817613A2 (pt) 2015-09-15
WO2009043838A1 (fr) 2009-04-09
DE102007046779A1 (de) 2009-11-12
CN101848778A (zh) 2010-09-29

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