EP0224920A2 - Installation de lavage et procédé de lavage de matières avec ladite installation - Google Patents

Installation de lavage et procédé de lavage de matières avec ladite installation Download PDF

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Publication number
EP0224920A2
EP0224920A2 EP86116843A EP86116843A EP0224920A2 EP 0224920 A2 EP0224920 A2 EP 0224920A2 EP 86116843 A EP86116843 A EP 86116843A EP 86116843 A EP86116843 A EP 86116843A EP 0224920 A2 EP0224920 A2 EP 0224920A2
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EP
European Patent Office
Prior art keywords
washing
washing shaft
trough
shaft
laundry
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Withdrawn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
EP86116843A
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German (de)
English (en)
Other versions
EP0224920A3 (fr
Inventor
Wilhelm Dr. Ing. Cornelius
Werner Ries
Rüdiger Schumann
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.)
Individual
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Individual
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 Individual filed Critical Individual
Publication of EP0224920A2 publication Critical patent/EP0224920A2/fr
Publication of EP0224920A3 publication Critical patent/EP0224920A3/fr
Withdrawn legal-status Critical Current

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    • 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
    • B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
    • 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
    • B03B5/02—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F7/00—Equipment for conveying or separating excavated material
    • E02F7/06—Delivery chutes or screening plants or mixing plants mounted on dredgers or excavators

Definitions

  • the invention relates to a washing system according to the preamble of claim 1 and a method for washing laundry according to the preamble of claim 24.
  • washing systems are required, for example, to separate the dredged material into the gravel and its components that can be drained off during gravel extraction. But even when loading gravel that has been stored for a long time, it is often desirable to wash the gravel again of impurities before it is used, for example, as a building material will continue to be used.
  • the known washing systems have an elongated trough, in the longitudinal axis of which a washing shaft equipped with swords and transport arms is arranged. The laundry that is fed into the trough often consists of larger bales of gravel, which are held together by loamy or clay-like impurities.
  • the swords driven by the washing shaft are supposed to break up these bales, the water supplied removes the impurities still attached to the gravel and the transport arms transport the increasingly clean gravel to the trough where it is discharged, dewatered and sorted according to grain size.
  • the known washing systems operating according to this method have the disadvantage that especially the swords and the transport arms, but also the washing shaft itself, quickly wear out due to the constant friction with the gravel.
  • the washing shaft must then be removed so that new swords and transport arms can be installed or so that the entire shaft can be replaced. This leads to lengthy interruptions in the washing process, which - apart from the constant replacement of materials - makes the entire process very expensive due to the long downtimes of the system.
  • the present invention has for its object to improve the known washing system of the type described above so that it is easier to use and maintain and that in particular the replacement of the parts subject to greater wear and tear can be done quickly and easily.
  • the task also includes the improvement of the washing process using the washing system, with particular emphasis being placed on reducing the wear on the moving parts.
  • the solution according to the invention is specified in claim 25 and the following subclaims.
  • after-washing of gravel that has already been pre-cleaned but has been stored for a long time
  • the laundry can be transported relatively quickly over the washing section. If this were to be achieved by a faster rotation of the washing shaft, this would lead to unnecessarily high wear on the moving parts.
  • the system according to the invention makes it possible to transport the gravel through the trough relatively quickly, even with a slow rotation of the washing shaft, by using a relatively large number of transport arms along the washing shaft, so that the wear of the moving parts is reduced to a minimum.
  • the task is to wash out heavily clumped gravel through loamy and clayey contaminants, it is advisable to increase the number of swords in relation to the transport arms so that a complete breakdown of the bales along the washing section is ensured.
  • the method according to the invention is also characterized in that the number of revolutions of the washing shaft by changing the speed of the motor driving the washing shaft of the respective task is customizable. Wear and performance of the machine can thus be optimally coordinated.
  • the washing installation according to FIG. 1 has a trough 10, in which the items to be washed are separated from their lockable components and then washed.
  • the trough 10 is open at the top, has vertical side walls and a concave bottom.
  • a washing shaft 11 is arranged in its central axis and is equipped with radially projecting swords 12.
  • a sieve 13 is arranged above the trough 10 and extends in the longitudinal direction almost over the entire length of the trough 10 up to its front end piece, as seen in the conveying direction.
  • the sieve 13 has different mesh sizes in such a way that 10 large mesh widths are arranged above the front end piece of the trough and meshes with a width of approx. 20 to 30 mm are reduced towards the other end of the sieve 13.
  • a first water inlet 14 is provided in the lower region of the rear end of the trough 10 and a second water inlet 15 is provided in the lower region of the front end of the trough.
  • a separating device 16 is arranged above the front end piece of the trough 10 at the point at which large, undivided bales of the items to be washed are fed to the trough through the sieve 13, which enables the bales to be roughly separated.
  • This separating device 16 consists of a drum 17, the circumference of which spans a conveyor belt equipped with pins. The distance between the pins is smaller than the dimension of the largest mesh size of the sieve 13.
  • a spring-loaded counter drum 18 presses the laundry against the conveyor belt of the drum 17. In particular, the loamy and clayey constituents le of the laundry, as long as they no longer adhere to the gravel, pressed between the pins of the conveyor belt and the gravel itself remains on the pins.
  • the gravel is fed to the front end of the trough 10.
  • the components pressed between the pins are separated from the conveyor belt by a stripping device (not shown in the drawing) and are diverted past the trough 10 by suitable guiding devices.
  • This separating device 16 is not a necessary part of the washing system according to the invention; however, it leads to a substantial relief of the actual washing and separation process in the trough 10 and thus to an acceleration of the process, to a reduction in the wear of the moving parts of the system and in the consumption of washing water.
  • the laundry which has been separated and washed off from its lockable constituents is removed by means of a metering device 20 and fed to a dewatering screen 21, from where it is possibly transported by means of a conveyor belt 22 via a sorting device for intermediate storage.
  • the washing shaft 11 is driven by an electric motor 23 via a gear 24.
  • the gear 24 enables the drive speed of the washing shaft 11 to be changed in a simple manner.
  • a chamber can also be provided at the end of the trough 10 by a partition, not shown in the drawing, in which the washed laundry is stowed.
  • the laundry can be removed from this chamber by means of a scraper or a shovel and the conveyor belt 22 are supplied. With this variant of the laundry removal, it is possible to keep the amount of washing water running off low.
  • the separating device 16 can also be replaced by a separating device 26 shown in FIG. 2 with a far greater separation capacity.
  • This separating device 26 has a conveyor belt 30 which is guided via transport rollers 27, 28 and 29, one of which serves as a drive roller and which, like the conveyor belt spanning the drum 17, is equipped with pins 31.
  • Vibrators 33 and / or a tapping device, indicated schematically at 34, are provided on the side walls 32 carrying the rollers 27 to 29, which support the separation of the items to be washed from their clayey and clayey components or the solution of those that have fallen between the pins 31 and on the conveyor belt 30 sticking components cause.
  • the laundry is applied to conveyor belt 30 at 35 and separated into two sub-streams at 36, one sub-stream 37 with gravel and sand and another sub-stream 38 with the loamy and clayey constituents.
  • the partial flow 37 - as in the exemplary embodiment according to FIG. 1 - is fed to the trough 10 for washing.
  • the washing shaft 10 has bores 40 penetrating the central axis at a right angle at regular intervals, with two bores adjacent in the axial direction penetrating the washing shaft by 90 °.
  • These holes 40 are cylindrical Bars 41 welded in such a way that they protrude on both sides from the washing shaft 11 of the same length.
  • Tubes 42 are plugged torsionally securely to the rods 41, 42 respectively in 90 0 circumferentially offset at their outer surface lines over the entire length of protruding out of the washing shaft 11 pipe sections arranged, radially projecting flat irons are welded 43rd
  • the tubes 42 with the flat irons 43 form the swords 12 for dividing the laundry.
  • Each tube 42 has in its interior a fastening plate 44 lying in a cross-sectional plane, which can be fastened by means of a screw 45 to the end face of the rod 41 in question.
  • the swords 12 can be quickly and easily attached to and detached from the rods 41 connected to the washing shaft 11, so that they can be exchanged without problems when the washing shaft 11 is installed (FIG. 4).
  • Conveyor plates 46 for the items to be washed are butt welded to some of the flat irons 43 at an angle to the conveying direction of the items to be washed.
  • the height of the conveyor plates 46 is preferably one third to one half the length of the tube 42 protruding from the washing shaft 11.
  • Two conveyor plates 46 attached to adjacent tubes 42 each lie in one plane and abut one another.
  • the number of conveyor plates 46 provided along the washing shaft 11 depends on the particular task when washing the items to be washed: heavily soiled items of laundry are expediently transported slowly over the washing section, so that few conveyor plates 46 are to be provided; little dirty washing well, however, can be transported quickly by means of many conveyor plates, so that the speed of rotation of the washing shaft 11 can still be kept low in order to keep the wear of the moving parts of the washing system as small as possible.
  • the quick and easy interchangeability of the tubes 42 with the flat bars 43 and the conveyor plates 46 greatly accommodates the problem-free adaptation to the respective task.
  • band irons 47 are arranged on the outer peripheral surface of the washing shaft in the axial direction. These band irons 47 take with them the laundry during the rotation of the washing shaft 11, so that it cannot get stuck there or rub against the washing shaft in an undesirable manner. As a result, the wear of the washing shaft 11 is reduced considerably, the band irons 47 act as shaft protection.
  • the exemplary embodiment according to FIG. 6 is characterized by a modified type of fastening of the swords and the transport arms on the washing shaft, which simplifies the replacement of the swords and transport arms even more quickly and thus accelerates them, especially when the space required for pulling the tubes 42 upward from the rods 41 is not available. Therefore, dovetails 50 are arranged on the washing shaft at regular intervals, each offset by 90 ° to the adjacent dovetail.
  • the swords and transport arms have a dovetail-shaped recess 51 on their end piece facing the washing shaft 11, so that they can be pushed onto the dovetails 50.
  • the swords and transport arms are not pushed onto the washing shaft 11 radially from above, but axially from the side, where there is always sufficient space available for this work.
  • the swords and transport arms can also be designed as tubes 42, on the outer surface lines of which flat iron 43 as the actual swords 12 are welded over the entire length.
  • conveyor plates 46 are fastened at an angle to the conveying direction. These conveyor plates 46 transport the items to be washed along the washing shaft 11. All other advantageous configurations gene, such as the band iron 47 on the washing shaft 11 as a driver for the laundry can also be provided in this embodiment.
  • flanges 61 with a U-profile are welded onto the washing shaft 11 at regular intervals, two adjacent flanges being offset from one another by 90 °.
  • Corresponding counter flanges 62 in the form of plates are provided on the end pieces of the swords 63 and transport arms 64 facing the washing shaft 11, which can be fastened to the flanges 61 by means of screw connections 65.
  • the swords 63 and transport arms 64 can be replaced if necessary, without the washing shaft 11 having to be removed from the washing system.
  • the swords 63 or transport arms 64 are shown in side view in FIGS. 9 and 10.
  • FIG. 11 shows the top view of the washing shaft 11, which is shown rotated by 90 ° with respect to the washing shaft according to FIG. 7. In this way, the different widths of the swords 63 and the transport arms 64 are demonstrated again.
  • the swords 73 and transport arms 74 are angular formed and inserted between mounting brackets 71 and a holding claw 72 welded onto the washing shaft 11 at regular intervals. They lie against the mounting brackets 71 against rotation and against tipping.
  • an end plate 75 is welded onto the upper edge of the fastening angle 71 and, at a corresponding height, to the sword 73 or the transport arm 74 a counter plate 76 abutting the end plate, which are screwed together by means of a screw at 77.
  • FIG. 14 shows the top view of the washing shaft 11, which is shown rotated by 90 ° with respect to the washing shaft according to FIG. This makes it clear that in this embodiment a sword 73 and a transport arm 74 can be combined in an angular shape.
  • a tab 78 is welded to the angle 73/74, which engages between two holding plates 79 welded onto the end plate 75.
  • a bolt 80 inserted through the holding plates 79 and the tab 78 secures the angle against slipping out. With 81 additional swords are designated.
  • the washing system described above is primarily intended for cleaning broken gravel.
  • Such gravel usually has loamy and clayey contaminants that lead to agglomeration. It is the job of the car wash to smash or separate these agglomerations and then to clean the gravel from the constituents that can still be attached to it Bern.
  • the wash water is cleaned according to the countercurrent principle by means of the fresh water supplied primarily at the rear end piece of the trough. Because the fresh water is fed to the trough 10 from below, a particularly strong turbulence arises in the trough, which lifts up lighter components in the laundry, such as wood, from where it can be easily removed.
  • the speed of the washing shaft 11 can be changed via the speed of the driving motor 23 or via the gear 24 and can be adapted to the respective washing process in coordination with the number of conveyor plates 46 arranged along the washing shaft.
  • the overall length of the trough 10 of the washing system according to the invention can be shortened in comparison to the known washing systems of this type because of the great effectiveness of the washing according to the method according to the invention and using the system according to the invention, which leads to financial and operating time savings.
  • the washing installation according to the invention can also be used with great advantages in the rewashing of laundry which has already been washed but is again soiled by prolonged storage. In the case of such a task, it is expedient, for example, to increase the number of conveyor plates 46 along the washing section in order to achieve high transport performance despite the slow rotation of the washing shaft and thus little wear.
  • the screen 13 above the trough 10 is not a necessary part of the washing system according to the invention. If it is the degree of soiling and the condition of the laundry allowed, this screen 13 can be completely dispensed with.
  • the laundry is then fed directly to the front end piece of the trough 10, as seen in the transport direction, so that it has to go through the entire washing path.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Accessory Of Washing/Drying Machine, Commercial Washing/Drying Machine, Other Washing/Drying Machine (AREA)
  • Cleaning In General (AREA)
EP86116843A 1985-12-06 1986-12-03 Installation de lavage et procédé de lavage de matières avec ladite installation Withdrawn EP0224920A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853543181 DE3543181C2 (de) 1985-12-06 1985-12-06 Waschanlage und Verfahren zum Waschen von Waschgut unter Verwendung der Waschanlage
DE3543181 1985-12-06

Publications (2)

Publication Number Publication Date
EP0224920A2 true EP0224920A2 (fr) 1987-06-10
EP0224920A3 EP0224920A3 (fr) 1988-07-20

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ID=6287822

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116843A Withdrawn EP0224920A3 (fr) 1985-12-06 1986-12-03 Installation de lavage et procédé de lavage de matières avec ladite installation

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Country Link
EP (1) EP0224920A3 (fr)
DE (1) DE3543181C2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0311714A3 (en) * 1987-10-14 1990-02-14 Werner Ries Washing device
EP0351607A3 (fr) * 1988-07-16 1991-07-24 Müller & Co. Aufbereitungstechnik Ag Dispositif de lavage
EP0482269A1 (fr) * 1990-10-27 1992-04-29 Heiner Dipl.-Ing. Dr. Kreyenberg Procédé et installation pour le traitement des sédiments
US7052520B2 (en) 2002-05-23 2006-05-30 Unilever Home & Personal Care Usa, A Division Of Conopco, Inc. Article and process for cleaning fabrics
CN110434117A (zh) * 2019-08-06 2019-11-12 陈岩 一种用于废铁回收的固体废料处理方法
WO2021121632A1 (fr) * 2019-12-20 2021-06-24 Weibel Ag Lavage de produits en vrac

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4034227A1 (de) * 1990-10-27 1992-04-30 Kreyenberg Heiner Verfahren und vorrichtung zum aufbereiten von ablagerungen
DE4341778C1 (de) * 1993-12-08 1995-06-08 Hermann Trestler Einwellen-Waschmaschine

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE200322C (fr) *
NL23730C (fr) *
DE1166111B (de) * 1964-03-26 Robert Pruess Kiesreinigungsverfahren und Vorrichtung zur Durchfuehrung des Verfahrens
GB436455A (en) * 1934-04-11 1935-10-11 Harold Wales Bearcroft Improvements in and relating to the washing and/or classifying of metalliferous earths
GB477776A (en) * 1936-07-03 1938-01-03 Carolus Maria Joseph Antonius Improved process and apparatus for breaking up mineral-containing clay, loam or the like masses by washing
DE688375C (de) * 1938-05-04 1940-02-19 Otto Schneider Dr Ing gen
US3695427A (en) * 1970-01-08 1972-10-03 Rheinhardt Friesz Classifying separator for unpoured, flowable rock-gravel, sand and cement slurry mixture from concrete mixer

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0311714A3 (en) * 1987-10-14 1990-02-14 Werner Ries Washing device
EP0351607A3 (fr) * 1988-07-16 1991-07-24 Müller & Co. Aufbereitungstechnik Ag Dispositif de lavage
EP0482269A1 (fr) * 1990-10-27 1992-04-29 Heiner Dipl.-Ing. Dr. Kreyenberg Procédé et installation pour le traitement des sédiments
US7052520B2 (en) 2002-05-23 2006-05-30 Unilever Home & Personal Care Usa, A Division Of Conopco, Inc. Article and process for cleaning fabrics
CN110434117A (zh) * 2019-08-06 2019-11-12 陈岩 一种用于废铁回收的固体废料处理方法
WO2021121632A1 (fr) * 2019-12-20 2021-06-24 Weibel Ag Lavage de produits en vrac

Also Published As

Publication number Publication date
EP0224920A3 (fr) 1988-07-20
DE3543181C2 (de) 1995-03-30
DE3543181A1 (de) 1987-06-11

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