EP0508335A2 - Dispositif pour la séparation de matières légères du sable et du gravier - Google Patents

Dispositif pour la séparation de matières légères du sable et du gravier Download PDF

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Publication number
EP0508335A2
EP0508335A2 EP92105859A EP92105859A EP0508335A2 EP 0508335 A2 EP0508335 A2 EP 0508335A2 EP 92105859 A EP92105859 A EP 92105859A EP 92105859 A EP92105859 A EP 92105859A EP 0508335 A2 EP0508335 A2 EP 0508335A2
Authority
EP
European Patent Office
Prior art keywords
inner chamber
overflow
outer chamber
chamber
feed
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.)
Granted
Application number
EP92105859A
Other languages
German (de)
English (en)
Other versions
EP0508335B1 (fr
EP0508335A3 (fr
Inventor
Hans Van Der Kuil
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.)
Allmineral Aufbereitungstechnik GmbH and Co KG
Original Assignee
Huelskens & Co
Allmineral Aufbereitungstechnik GmbH and Co KG
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 Huelskens & Co, Allmineral Aufbereitungstechnik GmbH and Co KG filed Critical Huelskens & Co
Publication of EP0508335A2 publication Critical patent/EP0508335A2/fr
Publication of EP0508335A3 publication Critical patent/EP0508335A3/fr
Application granted granted Critical
Publication of EP0508335B1 publication Critical patent/EP0508335B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
    • 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

Definitions

  • the invention relates to a device for separating light materials from mineral raw materials, in particular from sand and gravel, with a sorting area working according to the fluidized bed method, with a task for the raw material, a discharge for the cleaned material and an overflow for the light materials.
  • a generic device results from the company publication "LINATEX - LINARD", 04.83 from Schauenburg Maschinen- und Anlagenbau GmbH.
  • the known device consists of a cylindrical single-chamber container with an almost flat bottom and a discharge for the cleaned sand arranged therein. Above the bottom is a nozzle floor through which underwater flows arranged above which, during operation of the device, the so-called fluidized bed space is built up, in which, using the fine fractions of sand contained in the raw material task, a very high turbidity density is created, which can float organic contaminants contained in the raw material task, in particular heavily carbonized wood, so that the contaminants are washed out with the overflow water.
  • the disadvantage of the known device is that the raw material feed must be very solid; For example, in the dry extraction of the raw material to be cleaned, a task directly via a belt conveyor and in the case of wet extraction in the form of a sand / water mixture, a pre-thickening of the raw material feed, for example in hydrocyclones, is required. Since wet extraction is predominant in today's extraction processes, the known device requires the connection of an additional thickening stage with a corresponding mechanical and procedural effort with regard to controlling the composition of the tasks.
  • the invention is therefore based on the object of improving a generic device in such a way that there are no restrictions with regard to the sands and gravel to be cleaned, particularly in the case of the raw material feed, and that the cleaning or separation success is further improved.
  • the basic idea of the invention is that the device is designed in two stages with an inner chamber with an assigned feed arrangement for the raw material feed and the separation of the coarse sand and with an outer chamber surrounding the inner chamber and separated by an overflow for sorting the fine sand, whereby the outer chamber is designed as a sorting area which works according to the fluidized bed method and is followed by the overflow for the light materials.
  • the two-stage design of the device has the advantage that the coarse sands are first separated from the raw material feed in the inner chamber before the fine sands are sorted and cleaned in the outer chamber with the separation of the impurities; the device thus allows a high throughput because the sorting stage is considerably relieved.
  • Another advantage is that there are no special requirements for the solids content in the raw material feed; the raw material can be applied in almost any dilution, since in the inner chamber, in addition to the separation of the coarse sands, there is also an equalization the overflow into the outer chamber with the sorting area takes place or can be adjusted.
  • an impact body which leaves an outer annular gap is arranged centrally in the inner chamber, a feed tube ending at a distance above the impact body.
  • the surface of the impact body can be designed to slope downwards, whereby it can alternatively be expedient to make the surface of the impact body wavy in the event of a general inclination towards the annular gap, as a result of which a certain sedimentation of the raw material feed takes place before entry into the annular gap.
  • the feed pipe is in the feed pipe with a feed line for the raw material connected feed pipe arranged; furthermore, the feed pipe is arranged to be longitudinally displaceable, so that the distance between the exit of the raw material from the feed pipe and the impact on the impact body can be adjusted.
  • the dimensions of the inner chamber or the associated impact body and the setting of the flow velocity in the annular gap are to be specified in such a way that the separation grain size of the separation between coarse and fine sands in the inner chamber is between 2 mm and 0.5 mm.
  • the overflow between the inner chamber and outer chamber is designed as a surface inclined towards the outer chamber and surrounding the inner chamber in a ring.
  • the invention thus deviates from a simple overflow control in the form of an overflow designed as an edge and provides an overflow designed as an inclined surface at a mutual distance from the inner chamber to the outer chamber.
  • This has the advantage that the overflow of the fine sands with the impurities still contained in them is evened out on the overflow surface; At the same time, there is a certain sedimentation and pre-thickening of the material overflow, since the overflow water flows off faster. The sorting success of the sorting area assigned to the outer chamber is thus further improved.
  • a nozzle base through which underwater flows, is arranged in the annular outer chamber, the nozzle base being provided with a controllable fine sand discharge.
  • the nozzle base is infinitely adjustable in height.
  • the nozzle base arranged in the outer chamber from individual, interconnected individual segments, each segment of the nozzle base having a fine sand discharge that can be controlled by a mechanism and / or electronics.
  • the dimensioning rule for the assignment of the area ratios from inner chamber to outer chamber is that the area ratio is preferably between 1: 3.5 to 1: 5.5.
  • the device consists of a cylindrical inner chamber 10 with a feed arrangement 11.
  • the inner chamber 10 has at its lower end a tapered extraction area 12 with a controllable trigger 13 which can be actuated by a mechanism 14.
  • supply lines 22 for the supply of underwater are arranged on the outer circumference of the inner chamber 10.
  • the feed arrangement 11 consists of a feed tube 15 which is arranged centrally above the inner chamber 10 and which is arranged to be longitudinally displaceable.
  • a feed pipe 16 which is connected at its upper end to a feed line 17 for the raw material feed; in addition, a vent 18 is formed in the feed arrangement 11.
  • baffle 19 is arranged centrally in the inner chamber 10, which has a wavy surface with a general inclination to the outside.
  • An annular gap 21 remains between the outer wall 20 of the inner chamber 10 and the impact body 19.
  • an outer chamber 23 Surrounding the inner chamber 10 in a ring-shaped manner is an outer chamber 23, the inner wall 24 of which surrounds the outer wall 20 of the inner chamber 10 at a distance. This distance between the inner chamber 10 and outer chamber 23 is bridged by an overflow 25, which is designed as a surface 26 inclined towards the outer chamber 23.
  • a nozzle base 27 Arranged in the outer chamber 23 is a nozzle base 27 which, as shown in FIG. 2, consists of six individual segments 28. Each individual segment 28 of the nozzle base 27 has a discharge member 30 controlled by a mechanism 29 or associated electronics.
  • the outer chamber 23 is provided with an inlet 31 for the required underwater. At the upper edge of the outer chamber 23 there is an overflow 32 with a trigger 33 for the overflow water and the flushed light substances.
  • the raw material feed is supplied via the feed line 17 and the feed pipe 16 arranged in the feed pipe 15; Due to the longitudinal displaceability of the feed tube 15, the distance between the exit of the raw material and the impact body 19 can be adjusted, so that at this point a corresponding equalization of the feed flow is possible in adaptation to the subsequent grain size separation.
  • the material hits the impact body 19 and distributes itself over it until it reaches the annular gap 21, where, depending on the flow rate set there, there is a grain size separation of the raw material feed with a grain size between 2 mm and about 0.5 mm.
  • the coarse sands with a grain size of more than 0.5 mm sink into the discharge area 12 of the inner chamber 10 and are discharged in a regulated manner via the discharge 13.
  • the fluidized bed is generated here above the nozzle base 27 arranged in the outer chamber 23 in order to separate the organic impurities and the fine particles still contained in the fine sands from the fine sands and to separate them therefrom via the overflow 32 with a trigger 33.
  • the cleaned fine sands are drawn off via the discharge elements 30 arranged in the individual segments 28 of the nozzle base 27.
EP92105859A 1991-04-09 1992-04-04 Dispositif pour la séparation de matières légères du sable et du gravier Expired - Lifetime EP0508335B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4111376 1991-04-09
DE4111376 1991-04-09

Publications (3)

Publication Number Publication Date
EP0508335A2 true EP0508335A2 (fr) 1992-10-14
EP0508335A3 EP0508335A3 (fr) 1994-10-12
EP0508335B1 EP0508335B1 (fr) 1998-07-08

Family

ID=6429090

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92105859A Expired - Lifetime EP0508335B1 (fr) 1991-04-09 1992-04-04 Dispositif pour la séparation de matières légères du sable et du gravier

Country Status (4)

Country Link
EP (1) EP0508335B1 (fr)
AT (1) ATE168043T1 (fr)
DE (1) DE59209400D1 (fr)
PL (1) PL167497B1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540644C1 (de) * 1995-11-02 1997-04-03 Allmineral Aufbereitungstech Vorrichtung zum Abscheiden von Leichtstoffen aus mineralischen Rohstoffen
DE19630085A1 (de) * 1996-07-26 1998-01-29 Allmineral Aufbereitungstech Verfahren zur Steuerung einer Sortier- und Klassiervorrichtung für Sand und Kies
CN101850293A (zh) * 2010-04-23 2010-10-06 中国矿业大学 脱泥型液固流化床粗煤泥分选分级装置
DE102009033476A1 (de) 2009-07-17 2011-01-27 Lösel, Kai Verfahren zur Gewinnung von Schwergutfeinpartikeln aus einem Sandaustrag einer Nassklassiereinrichtung und Vorrichtung dazu

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028686A1 (de) * 1980-07-29 1982-05-13 Buckau-Walther AG, 4048 Grevenbroich Verfahren zum waschen von schuettgut und vorrichtung zur durchfuehrung des verfahrens
DE3418492A1 (de) * 1984-05-18 1985-11-21 Heiner Dipl.-Ing. 4100 Duisburg Kreyenberg Verfahren und vorrichtung zur behandlung von gewaesserablagerungen mittels klassierens und mechanischen entwaesserns des dem gewaesser entnommenen gutes
DE3427395A1 (de) * 1984-07-25 1986-02-06 Werner Prof. Dr.-Ing. 2150 Buxtehude Bauer Verfahren zur abscheidung von verunreinigungen aus problemschlaemmen und vorrichtung zur durchfuehrung dieses verfahrens
DE3902665A1 (de) * 1989-01-30 1990-08-02 Harald Garbe Verfahren zur veredelung von anorganisch nichtmetallischen fasern insbesondere keramikfasern sowie vorrichtung zur durchfuehrung dieses verfahrens

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3028686A1 (de) * 1980-07-29 1982-05-13 Buckau-Walther AG, 4048 Grevenbroich Verfahren zum waschen von schuettgut und vorrichtung zur durchfuehrung des verfahrens
DE3418492A1 (de) * 1984-05-18 1985-11-21 Heiner Dipl.-Ing. 4100 Duisburg Kreyenberg Verfahren und vorrichtung zur behandlung von gewaesserablagerungen mittels klassierens und mechanischen entwaesserns des dem gewaesser entnommenen gutes
DE3427395A1 (de) * 1984-07-25 1986-02-06 Werner Prof. Dr.-Ing. 2150 Buxtehude Bauer Verfahren zur abscheidung von verunreinigungen aus problemschlaemmen und vorrichtung zur durchfuehrung dieses verfahrens
DE3902665A1 (de) * 1989-01-30 1990-08-02 Harald Garbe Verfahren zur veredelung von anorganisch nichtmetallischen fasern insbesondere keramikfasern sowie vorrichtung zur durchfuehrung dieses verfahrens

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19540644C1 (de) * 1995-11-02 1997-04-03 Allmineral Aufbereitungstech Vorrichtung zum Abscheiden von Leichtstoffen aus mineralischen Rohstoffen
WO1997016253A2 (fr) * 1995-11-02 1997-05-09 Allmineral Aufbereitungstechnik Gmbh & Co. Kg Separateur des matieres legeres du sable et du gravier
WO1997016253A3 (fr) * 1995-11-02 1997-07-03 Allmineral Aufbereitungstech Separateur des matieres legeres du sable et du gravier
AU701460B2 (en) * 1995-11-02 1999-01-28 Allmineral Aufbereitungstechnik Gmbh & Co. Kg Apparatus for separating off light materials from sand and gravel
US6036028A (en) * 1995-11-02 2000-03-14 Allmineral Aufbereitungstechnik Gmbh & Co. Kg Apparatus for separating off light materials from sand and gravel
DE19630085A1 (de) * 1996-07-26 1998-01-29 Allmineral Aufbereitungstech Verfahren zur Steuerung einer Sortier- und Klassiervorrichtung für Sand und Kies
WO1998004353A1 (fr) * 1996-07-26 1998-02-05 Allmineral Aufbereitungstechnik Gmbh & Co. Kg Procede permettant de commander un dispositif de triage et de calibrage pour le sable et le gravier
US6142311A (en) * 1996-07-26 2000-11-07 Allmineral Aufb Ereitungstechnikbmbh & Co Kg Process for controlling a sand and gravel sorting and sizing device
DE19630085C2 (de) * 1996-07-26 2001-03-08 Allmineral Aufbereitungstech Verfahren zur Steuerung einer Sortier- und Klassiervorrichtung für Sand und Kies
DE102009033476A1 (de) 2009-07-17 2011-01-27 Lösel, Kai Verfahren zur Gewinnung von Schwergutfeinpartikeln aus einem Sandaustrag einer Nassklassiereinrichtung und Vorrichtung dazu
CN101850293A (zh) * 2010-04-23 2010-10-06 中国矿业大学 脱泥型液固流化床粗煤泥分选分级装置
CN101850293B (zh) * 2010-04-23 2013-02-13 中国矿业大学 脱泥型液固流化床粗煤泥分选分级装置

Also Published As

Publication number Publication date
DE59209400D1 (de) 1998-08-13
PL167497B1 (pl) 1995-09-30
EP0508335B1 (fr) 1998-07-08
ATE168043T1 (de) 1998-07-15
PL294147A1 (fr) 1993-02-08
EP0508335A3 (fr) 1994-10-12

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