EP0860209A2 - Dispositif de lavage pour résidus de béton ou analogues - Google Patents

Dispositif de lavage pour résidus de béton ou analogues Download PDF

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Publication number
EP0860209A2
EP0860209A2 EP97121691A EP97121691A EP0860209A2 EP 0860209 A2 EP0860209 A2 EP 0860209A2 EP 97121691 A EP97121691 A EP 97121691A EP 97121691 A EP97121691 A EP 97121691A EP 0860209 A2 EP0860209 A2 EP 0860209A2
Authority
EP
European Patent Office
Prior art keywords
shaft
container
washing device
protective tube
screw conveyor
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Withdrawn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
EP97121691A
Other languages
German (de)
English (en)
Other versions
EP0860209A3 (fr
Inventor
Emil Sandau
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.)
Liebherr Mischtecknik GmbH
Original Assignee
Liebherr Mischtecknik 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 Liebherr Mischtecknik GmbH filed Critical Liebherr Mischtecknik GmbH
Publication of EP0860209A2 publication Critical patent/EP0860209A2/fr
Publication of EP0860209A3 publication Critical patent/EP0860209A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/48—Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
    • B03B5/52—Spiral classifiers

Definitions

  • the invention relates to a washing device for residual concrete or the like a container holding the material to be washed out, with an oblique upward, having a rotatingly driven screw conveyor Conveying area, which has an ejection opening for the washed out at its upper end area Has material, and with at least an upper and a lower Bearing point for supporting the shaft of the screw conveyor.
  • washing devices for residual concrete are for example from DE-C-39 06 645, DE-A-44 28 415 or DE-A-195 44 208 are known.
  • the known Arrangements are either high as both auger bearings arranged that they are above the water level in the container, which is at Washout forms or is set, or else it is a waterproof Bearing required, which is also resistant to the material to be washed out is.
  • Such storage is complex and expensive and is subject to a relative high wear and tear due to the material to be washed out.
  • An object of the present invention is now one below the Water level to provide arranged storage for the shaft of the screw conveyor for which no sealing is required and no wear due to the Material to be washed out is exposed.
  • a shaft encompassing Protective tube connected to the lower wall of the container extends diagonally up to a height that is above a maximum allowed Level is, and that a lower bearing arrangement for the shaft in Protective tube or aligned with this outside of the container.
  • the bearing is in any case outside of the wet area and is separated from it by the protective tube. So you can relatively simple bearings are used where no sealing is required is. Since they are not in contact with the material or liquid to be washed out coming inside the container can significantly reduce wear and tear and an increase in lifespan can be achieved.
  • the protective tube is expediently connected to the lower wall of the container welded to achieve a very simple and inexpensive solution.
  • the shaft of the screw conveyor preferably extends below through one of of the pipe attachment point encircled to the outside and is stored there in the lower bearing arrangement. This makes this bearing arrangement completely outside the wet area. It is convenient attached to the outside of the container wall.
  • a drive motor in the area of the lower bearing arrangement is used to drive the screw conveyor or an upper one arranged at the upper end of the conveying area Bearing arrangement connected to the shaft.
  • the bearing of the drive shaft of the drive motor in an advantageous manner as a bearing arrangement for the Shaft of the screw conveyor to be formed, so that a separate bearing arrangement can be omitted.
  • a protective cover covering the upper tube mouth intended. This is preferably with the shaft of the screw conveyor connected. It is advantageously designed like a lid and has it Protective tube outside in the axial direction overlapping edge areas, so that a special secure protection can be achieved.
  • the washing device shown in FIGS. 1 and 2 each in an overall view is used to wash out residual concrete, residual mortar, residual liquid screed or the like, i.e. to separate the coarse components, such as gravel or sand, from the fine components, for example the cement contained in the water or Plaster. Both the washed-out gravel or the like and the cement water or the like can then be recycled.
  • the washing device consists essentially of a circular cylindrical Filling container 10, lying, that is, with a horizontal longitudinal axis, on a holding device 11 is arranged. Approximately the upper half of this filling container 10 is designed as a removable cover 12, FIG. 2 the top view with the removed Cover 12 shows.
  • An elongated, much narrower conveyor housing 13 extends obliquely from lower area of the filling container 10 from upwards.
  • This conveyor housing 13 consists of a lower housing part 14 and an upper housing part 15, the in extension to each other at adjacent locations in the lower area of the Filling container 10 are sealingly attached so that the lower boundary line 16th the side projection of the conveyor housing 13 is essentially a tangent to Filling container 10 forms.
  • the upper housing part 15 of the conveyor housing 13 is by means of a support 17 supported on the ground.
  • a screw conveyor 18 extends in the longitudinal direction through the conveyor housing 13 and thus also through the lower area of the filling container 10.
  • This screw conveyor 18 runs through wall openings 19, 20 of the filling container 10, to which the lower and upper housing parts 14, 15 of the conveyor housing 13 are attached are.
  • a central drive shaft of the screw conveyor 18, which is a hollow shaft is formed, is driven by an electric drive motor 22 which the upper end face 23 of the conveyor housing 13 is fixed and at the same time an upper one Bearing for the drive shaft 21 forms.
  • a tapered end area runs below 60 of the drive shaft 21, which can be integrally formed or attached, by a through opening 61 in the end wall of the lower housing part 14 and is stored outside of the conveyor housing 13 in a bearing 25, the is fixed to the lower housing part 14 via a holding strut 26.
  • the passage opening 61 is surrounded by a protective tube 62 within the conveyor housing 13, which is welded on the inside to the end wall of the lower housing part 14, so that there is a watertight connection.
  • the protective tube 62 encompasses the inside of the conveyor housing 13 the drive shaft 21 and extends accordingly obliquely upwards to one Place above the maximum permitted water level 63 inside the filling container 10 and the conveyor housing 13.
  • a cover-like protective cover 64 is attached, for example welded on, which covers the obliquely upward-pointing mouth of the protective tube 62.
  • a tubular extension 65 of the protective cover 64 extends obliquely downwards and axially covers the upper region of the protective tube 62, see above that a secure spray cover of the mouth of the protective tube 62 is achieved.
  • the top Housing part 15 of the conveyor housing 13 is covered by a cover plate 29, which are screwed or detachable by means of clamps on the upper housing part 15 can be fixed.
  • FIG. 2 there is a feed wheel 30, 31 on each side of the screw conveyor 18 arranged, these conveyor wheels 30, 31 on a horizontally above the screw conveyor and fixed transverse to the longitudinal direction of the drive shaft 32 are.
  • the drive shaft 32 is on one end wall 33 of the filling container 10 in a bearing 34 and on the other end wall 35 on a drive motor 36 mounted on a horizontal holding plate 37 on the outside of the end wall 35 is mounted.
  • the conveyor wheels are used for the most complete support possible of the filling material to the screw conveyor 18 and then into the conveyor housing by means of the latter 13. This is described in more detail in the prior art specified at the outset.
  • a filling opening 41 Approximately halfway up the end wall 35 of the filling container 10 is a filling opening 41 arranged on which a trough-like funnel 42 is attached. This points at its outer corner areas towards the filling opening 41 Wash nozzles 43 through which water can be flushed in for cleaning. Dashed lines indicate that the hopper 42 is also on the opposite Side, so on the end wall 33, on a corresponding Filling opening can be used, or there are two funnels 42 for filling on both sides provided.
  • a cement-water mixture flows continuously after reaching provided level or water level 63 via a water outlet channel 44 from.
  • This water level 63 is chosen so that the bilateral storage the drive shaft 32 is arranged above the level and that also - as already stated - the upper mouth of the protective tube 62 above this water level 63 is arranged.
  • the screw conveyor 18 consists of four longitudinal beams 54 which have radial struts 55 fixed at the same distance from each other and towards the drive shaft 21 are. These radial struts 55 are of course only in the upper region of the Conveyor housing 13 is provided, ie outside the area of the protective tube 62. In this area, the screw conveyor 18 overlaps this protective tube 62.
  • Around the longitudinal beams 54 two wind each other by 180 ° offset helical metal belts 56, which form the actual screw conveyor.
  • the metal strips 56 are at their points of contact with the side members 54 welded. This results in a very rigid screw arrangement that on the one hand, it enables the drive shaft 21 to be supported only at its two ends and to dispense with intermediate storage, and the other the unsupported arrangement permitted in the area of the protective tube 62.

Landscapes

  • Screw Conveyors (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • On-Site Construction Work That Accompanies The Preparation And Application Of Concrete (AREA)
EP97121691A 1997-02-21 1997-12-09 Dispositif de lavage pour résidus de béton ou analogues Withdrawn EP0860209A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997106854 DE19706854A1 (de) 1997-02-21 1997-02-21 Auswaschvorrichtung für Restbeton o. dgl.
DE19706854 1997-02-21

Publications (2)

Publication Number Publication Date
EP0860209A2 true EP0860209A2 (fr) 1998-08-26
EP0860209A3 EP0860209A3 (fr) 1999-02-03

Family

ID=7821018

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97121691A Withdrawn EP0860209A3 (fr) 1997-02-21 1997-12-09 Dispositif de lavage pour résidus de béton ou analogues

Country Status (2)

Country Link
EP (1) EP0860209A3 (fr)
DE (1) DE19706854A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2220003C1 (ru) * 2002-07-09 2003-12-27 Закрытое акционерное общество "Спецтехномаш" Спиральный классификатор

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108543624A (zh) * 2018-03-13 2018-09-18 郑州傲宙建材有限公司 一种水洗分离机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2189419A (en) * 1938-03-01 1940-02-06 Homer C Hirsch Material classifier
US2283992A (en) * 1940-03-12 1942-05-26 Homer C Hirsch Material classifier
DE9100176U1 (de) * 1991-01-09 1991-03-28 Brenner, Horst, 71717 Beilstein Förderschnecke
DE4428415C2 (de) * 1994-08-11 1997-05-22 Emil Sandau Auswaschvorrichtung für Restbeton od. dgl.
DE19544208C1 (de) * 1995-11-28 1997-05-07 Emil Sandau Auswaschvorrichtung für Restmaterial wie Restbeton od. dgl.

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2220003C1 (ru) * 2002-07-09 2003-12-27 Закрытое акционерное общество "Спецтехномаш" Спиральный классификатор

Also Published As

Publication number Publication date
DE19706854A1 (de) 1998-08-27
EP0860209A3 (fr) 1999-02-03

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