EP1806181A1 - Procédé et dispositif destinés à la préparation de graviers, de sable ou analogues - Google Patents

Procédé et dispositif destinés à la préparation de graviers, de sable ou analogues Download PDF

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Publication number
EP1806181A1
EP1806181A1 EP07000331A EP07000331A EP1806181A1 EP 1806181 A1 EP1806181 A1 EP 1806181A1 EP 07000331 A EP07000331 A EP 07000331A EP 07000331 A EP07000331 A EP 07000331A EP 1806181 A1 EP1806181 A1 EP 1806181A1
Authority
EP
European Patent Office
Prior art keywords
water
screening machine
machine according
compressed air
trough
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Withdrawn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
EP07000331A
Other languages
German (de)
English (en)
Inventor
Burkhard Schmitt
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.)
Simatec GmbH
Original Assignee
Simatec 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
Priority claimed from DE102006015915A external-priority patent/DE102006015915A1/de
Priority claimed from DE202006012821U external-priority patent/DE202006012821U1/de
Application filed by Simatec GmbH filed Critical Simatec GmbH
Publication of EP1806181A1 publication Critical patent/EP1806181A1/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Withdrawn legal-status Critical Current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
    • B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/62—Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
    • B03B5/623—Upward current classifiers
    • 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
    • B03B5/04—Washing granular, powdered or lumpy materials; Wet separating using shaken, pulsated or stirred beds as the principal means of separation on shaking tables

Definitions

  • the invention relates to the treatment of gravel, sand or the like., In particular using screening machines, by deposition of impurities from organic constituents.
  • the raw material to be cleaned is fed to a water bath, from which the cleaned finished product is discharged and the impurities are separated with overflowing water.
  • a screening machine which operates on the principle described above, is in the EP 0 391 324 A1 shown. It is unfavorable that a considerable amount of water is needed to remove the impurities from the raw material.
  • the invention is therefore based on the object to remedy this situation and to find a way for the preparation and cleaning of raw material, which results in the simplest possible means a safe and fast treatment. At the same time, water consumption should be reduced and the environment preserved.
  • the new method for the treatment of gravel, sand or the like.
  • Add compressed air to the water bath in order to achieve in this way a whirlpool-like Aufströmung the lighter impurities.
  • the raw material is thereby continuously introduced into the water bath and by the pressed-in compressed air, the impurities resulting components of the raw material are poured and deposited with the overflowing water.
  • the Wasserbad anyoneer is subjected to oscillatory movements that promote the cleaned finished goods for discharge.
  • the compressed air is preferably introduced at the bottom of the water tank. It is advantageous if this several transverse to the screening machine and parallel tubes are used.
  • the tubes then fulfill the task of supporting the conveying of finished goods by preventing individual parts from slipping back.
  • the supply of compressed air can be done with constant pressure. It can be advantageous if the compressed air is fed pulsatingly with changed pressure and this optionally in such a way that a different pressure is assigned to the individual tubes. It is also possible, for example, to supply the compressed air in the feed pipes for finished goods discharge with decreasing pressure or vice versa with increasing pressure. This can be controlled via appropriate control devices.
  • the replacement of running out of the water with the contaminants water can be done in different ways.
  • One possibility is to install a spray above the Wassserbad, via which, in addition to the entry of water, at the same time a surface flow towards the dirty water overflow is effected. But it is also sufficient if the raw material at his entry or before a sufficient, the water drainage balancing amount of water is added. However, a combination of the two options has proven to be particularly advantageous.
  • the screening machine for carrying out the method is characterized by a simple structure.
  • Components are a trough that serves as a water tank and has a Aufstromboden through which the compressed air is introduced; a vibratory drive for the oscillating movement and the associated Fertiggutaustrag and a raw material inlet.
  • the exhaust floor is designed as a blind floor, which rises in the direction of the Fertiggutaustrag out.
  • blind floor is understood as meaning a floor which has an impermeable surface.
  • the exhaust floor is supported by trusses, which are hollow inside and which are used as guide tubes for the compressed air. To these trusses pipe elements are attached, which are provided with air outlets. So that no water can penetrate into the pipe elements, the air outlets are covered with check valves.
  • the pipe elements consist of a cross tube with protruding nozzle for connection to the trusses. It is advantageous if the pipe elements are surrounded by a box-like enclosure. That is why they are in danger of premature abrasion protected by the constantly moving finished goods.
  • the attachment of non-return valves for example in the form of non-return valves in a simple manner feasible. Another advantage is achieved daduch when the envelope is wedge-shaped, with the impact side forming wedge surface for Fertiggutaustrag shows. The wedge surface assumes the function of a particularly good Staumann.
  • the air outlets can be accommodated with the backflow barriers cheap.
  • a drainage screen is attached. Since existing in conventional screening machines below the Aufstrombodens existing water pipes and significantly less wastewater accumulates, it is now possible to dispense with a separate screening machine for the separation of impurities from the water. With the new screening machine, a dewatering screen can be integrated in the machine itself. It saves space when the drainage screen is placed below the trough. The waste water overflow is placed directly above the sieve trap. The drainage screen is slightly tilted and at its end the organic parts are separated. The sieve itself is connected to the screening machine, so that the oscillating drive also simultaneously moves the dewatering sieve.
  • first slope may be followed by a second shallower slope, which serves as a calming zone. Since the turbulence here decreases to near zero, dirt can settle here, which runs as separate particles back into the container, whereas relatively pure water leaves the container via the overflow. This water can be collected in a settling tank and recirculated to the laundry. This settling tank can also be supplied with the dripping water from the material discharge. In this way, the fresh water costs can be drastically reduced. Between the water bath container, i. the highest point of the formed as an inclined plane vibrating soil and the flat material discharge, a step may be provided which serves to circulate the granular material one last time on this edge and endreininigen.
  • the method according to the invention therefore consists of applying sand or gravel or the like to granular material on a rising ground and injecting air over the ground which vigorously turbulates the bath, wherein in addition the soil can oscillate at a suitable frequency.
  • the material may impact a first slope as described above, followed by a second shallower slope, onto which the soil may settle so that relatively clean water exits the container via the overflow representing an edge. This is fed to a settling tank, from which the supernatant is decanted and recirculated.
  • FIGS. 1 to 5 In the embodiment shown in FIGS. 1 to 5 is dispensed with the presentation of conventional in screening machines of conventional design and used in the present invention machine parts. Therefore, not shown is the oscillating drive, the sorting screens and subsequent sorting screens for the raw material.
  • the oscillating parts of the screening machine 1 are accommodated in the container 2.
  • An essential part of the invention is the water bath 3, which is formed by the trough 4 filled with water.
  • the trough 4 has vertically extending side walls and the Aufstrom réelle 5.
  • the Aufstrom réelle 5 is oriented obliquely rising to the Fertiggutaustrag 6 out.
  • the embarkstrom founded 5 is designed as a blind floor with a closed surface.
  • At its lower end 7 of the Aufstrom réelle 5 is provided with an overflow 8 for the dirty water 9.
  • Below the Aufstrom convinceds 5 a number of trusses 10 are attached, which contribute to its strength.
  • the trusses 10 are hollow inside and serve as pipes for the compressed air supply.
  • the supply line for the compressed air are connected to the terminals 11 to the trusses 10.
  • a conventional side channel blower is used for compressed air generation.
  • the water surface 12 is shown in dashed lines.
  • the material bed 13 is formed on the Aufstromboden 5.
  • Its surface 14 is marked with the drawn line.
  • Above the trough 4 the Bebrausungsstrom 16 is installed, which has several consecutive tubes 17 with inlet nozzles 18 at their ends.
  • baffles 19 At the outlet nozzles 18 are baffles 19, which deflect the water emerging from the nozzles 18 in the direction of the overflow 8.
  • the water jet causes a flow of the water surface 12 to the overflow.
  • the raw material is input through the material inlet 20 into the lower end 7 of the trough 4. If necessary, water is added to the raw material to compensate for the overflow of water.
  • the overflow water with the impurities is supplied to a drainage screen 21 attached below the trough 4. The attachment of the screen 21 is possible because the water pipes existing in conventional screening machines under the water baths have become superfluous.
  • the waste water collected below the sieve 21 is returned to the material inlet 20 or to the spray system 16.
  • the impurities that accumulate at the end of the sieve are dumped or sent for further use.
  • the compressed air feed into the material bed 13 is performed by the traverses 10 and the tube elements 22 attached thereto, which are provided with the air outlets 23.
  • Such an element 22 is shown in FIG. It consists of a cross tube 24 with laterally projecting nozzle 25. The latter are provided for connection to the Travesen 10.
  • the tubular elements 22 with a box-like To provide cladding 22. See Fig. 3 and 4.
  • the envelope 27 is wedge-shaped.
  • the impact side forming wedge surface 28 shows the Fertiggutaustrag.
  • rectangular depressions 29 are mounted both on the wedge surface 28 and on the surface 30, which are provided in their bottom with slots 31.
  • the slots 31 are covered by the return flow barriers 26, which prevent ingress of water into the interior of the envelope 27 and the air-carrying tubes 24, 25.
  • the raw material preferably with the addition of recycled water, is introduced through the material inlet 20 in the water-filled trough 4.
  • compressed air is blown through the Aufstromboden.
  • the distribution of the upflow nozzles 23, 31 is carried out so that the entire nominal width of the water bath 3 is detected.
  • the cleaned finished product is conveyed to the finished product discharge, while excess water with the impurities floating therein flows out via the overflow 8 onto a drainage screen 21.
  • the contaminated water is thus directly afterwards self-cleaned and returned to the process.
  • a bushing 16 can be used as a support.
  • FIG. 6 illustrates a variant of the method carried out according to the invention on the basis of a schematic diagram.
  • the container 2 which is provided with the inclined bottom 5, there is the water bath 3.
  • the supply pipes 22 is air injected, wherein in addition to the pulse increase water can be blown with.
  • the material inlet 20 passes e.g. Gravel in the water bath, which is continuously fed and continuously withdrawn via the Fertiggutaustrag 6.
  • the bottom 5 preferably swings, as well as the Fertiggutaustrag be placed in vibration. Water may be introduced into the bath along with the gravel via line 38 or as shown in FIG.
  • the end wall of the container 3 a first slope 33 and a second slope 34, wherein the gravel filling indicated by the dash-dotted line is approximately at the height of the joint between the inclined surfaces 33, 34.
  • the effluent from the finished product discharge can, as shown, also be placed in the settling box 36.

Landscapes

  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
EP07000331A 2006-01-09 2007-01-09 Procédé et dispositif destinés à la préparation de graviers, de sable ou analogues Withdrawn EP1806181A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE202006000035 2006-01-09
DE102006015915A DE102006015915A1 (de) 2006-01-09 2006-04-05 Verfahren und Vorrichtung zur Aufbereitung von Kies, Sand oder dgl.
DE202006012821U DE202006012821U1 (de) 2006-01-09 2006-08-19 Vorrichtung zur Aufbereitung von Kies, Sand o.dgl.

Publications (1)

Publication Number Publication Date
EP1806181A1 true EP1806181A1 (fr) 2007-07-11

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP07000331A Withdrawn EP1806181A1 (fr) 2006-01-09 2007-01-09 Procédé et dispositif destinés à la préparation de graviers, de sable ou analogues

Country Status (1)

Country Link
EP (1) EP1806181A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016009189A1 (fr) * 2014-07-15 2016-01-21 Aquavitrum Limited Appareil pour séparer des matériaux solides
CN109351035A (zh) * 2018-12-12 2019-02-19 湖南万通科技股份有限公司 一种物料脱水存储装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391324A1 (fr) * 1989-04-07 1990-10-10 IBAG-M&F GESELLSCHAFT FÜR AUFBEREITUNGS- UND FÖRDERTECHNIK MBH Trieuse par vibration
DE19516519C1 (de) * 1995-05-05 1996-07-25 Lzr Bauer Beton Gmbh & Co Kg Vorrichtung zur Entfernung von organischen Verunreingigungen in Kies
EP1582262A1 (fr) * 2004-03-29 2005-10-05 Bollegraaf Beheer Appingedam B.V. Séparateur à bain d'eau

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0391324A1 (fr) * 1989-04-07 1990-10-10 IBAG-M&F GESELLSCHAFT FÜR AUFBEREITUNGS- UND FÖRDERTECHNIK MBH Trieuse par vibration
DE19516519C1 (de) * 1995-05-05 1996-07-25 Lzr Bauer Beton Gmbh & Co Kg Vorrichtung zur Entfernung von organischen Verunreingigungen in Kies
EP1582262A1 (fr) * 2004-03-29 2005-10-05 Bollegraaf Beheer Appingedam B.V. Séparateur à bain d'eau

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016009189A1 (fr) * 2014-07-15 2016-01-21 Aquavitrum Limited Appareil pour séparer des matériaux solides
CN106470763A (zh) * 2014-07-15 2017-03-01 阿夸维特朗姆有限公司 用于分离固体材料的装置
AU2015288973B2 (en) * 2014-07-15 2020-05-21 Aquavitrum Limited Apparatus for separating solid materials
CN109351035A (zh) * 2018-12-12 2019-02-19 湖南万通科技股份有限公司 一种物料脱水存储装置

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