EP0521361B1 - Siebtrommel - Google Patents

Siebtrommel Download PDF

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Publication number
EP0521361B1
EP0521361B1 EP92110438A EP92110438A EP0521361B1 EP 0521361 B1 EP0521361 B1 EP 0521361B1 EP 92110438 A EP92110438 A EP 92110438A EP 92110438 A EP92110438 A EP 92110438A EP 0521361 B1 EP0521361 B1 EP 0521361B1
Authority
EP
European Patent Office
Prior art keywords
section
drum
sieve
sections
mesh
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.)
Expired - Lifetime
Application number
EP92110438A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0521361A2 (de
EP0521361A3 (en
Inventor
Klaus Thesenfitz
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.)
ASCO ASPHALT-CONTAINER AKTIENGESELLSCHAFT
Original Assignee
Lintec 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 Lintec GmbH and Co KG filed Critical Lintec GmbH and Co KG
Publication of EP0521361A2 publication Critical patent/EP0521361A2/de
Publication of EP0521361A3 publication Critical patent/EP0521361A3/de
Application granted granted Critical
Publication of EP0521361B1 publication Critical patent/EP0521361B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
    • E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
    • E01C19/02—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for preparing the materials
    • E01C19/05—Crushing, pulverising or disintegrating apparatus; Aggregate screening, cleaning, drying or heating apparatus; Dust-collecting arrangements specially adapted therefor

Definitions

  • the invention relates to a sieve drum for conditioning and classifying granular material with at least one input device at one end of the drum rotating about its longitudinal axis and an output of the conditioned material at the other drum end in a first annular space between the drum and successive in the longitudinal direction of the drum Inner ring screen sections concentrically surrounding the drum, the mesh size of the ring screen sections changing such that the section with the smaller mesh size is the axially closest to the output, the section with the largest mesh size is the most distant ring screen section, and with the underside of the drum arranged silos for receiving screenings of different particle sizes.
  • Such screening drums are used, for example, to process the material of road surfaces using bitumen or old asphalt and grit of different grain sizes. Coarse grit grit is used to build a support structure, smaller grit grit is used to partially fill the cavities of the support structure and the bitumen penetrating into the remaining cavities serves to bind the other covering components.
  • a generic screening drum can be used to bring the individual components into the correct mixing ratio and, in particular, to prepare them by tempering in the heated mixing drum if the individual components of the road surface are to be applied to the road base at the same time.
  • the object of the invention is to design a generic device such that the individual ring screen sections can be assigned to the drum in a particularly expedient manner.
  • a "possible as possible” is understood in particular that the ring screen sections can be assembled and disassembled as quickly as possible and with a minimum of tooling, and that the assembled ring screens are reliably attached to the drum in the assembled state.
  • this is to be understood to mean that the ring sieve sections are assigned to one another in such a way that the sieves are acted upon in accordance with their mesh size in accordance with the particle distribution in the sieved material.
  • outer ring sieve sections are used, the individual mesh sizes being different and being selected such that not the full amount of the sieved material is passed over the finest sieve, but in the range from 50 to 60% of the sieved material. This can be achieved by a pre-sieve with a larger mesh size arranged upstream of the ring screen cut with the smallest mesh size.
  • the outer ring screen sections are designed in the form of windows in which the individual screens are fastened. It is sufficient to simply place the sieves on the frame and fasten them to this frame, the frames additionally being provided with guide parts which project radially inwards when placed on the sieve drum and ensure that the material to be sieved is in the outer annular space performs the desired axial movement.
  • a drum 2 In a fixed housing 1, a drum 2 is rotatably mounted about its longitudinal axis 3. A burner 40, whose longitudinal flame axis coincides with the longitudinal drum axis 3, projects into the drum 2 from the left end of the drum in the illustration. The burner 40 can be operated with gas or oil.
  • the drum 2 is driven by a motor (not shown) via a gear unit which encloses a race 5 which surrounds the drum and is fixedly connected to it.
  • a number of so-called hot silos 6 are arranged in succession in the longitudinal direction of the drum. These hot silos are funnel-shaped containers that are largely insulated from temperature radiation and hold screenings or chippings of different particle sizes emerging from the drum 1.
  • inner ring sieve sections NW10, NW25 and NW32 built up successively from partial segments in the drum longitudinal direction are arranged on the drum 2 such that an inner annular space 8 exists between the casing of the drum 2 and the ring sieve sections.
  • the ring screen sections have different mesh sizes
  • the ring screen sections 10 have a mesh size 10
  • the ring screen sections 32 have a mesh size 32, for example.
  • the annular space 8 communicates with the interior of the drum 2 via openings which are evenly distributed over the drum circumference at the drum end on the left in the drawing.
  • the dust and moisture are discharged through an exhaust stack 19 at the right-hand end of the drum.
  • FIG. 2 not only shows the radially inner ring sieve sections NW10, NW25 and NW32, but also the outer ring sieve sections NW4, NW18 and NW25, which are also arranged at a greater radial distance.
  • the outer ring screen sections are separated from the inner ring screen sections by an annular space 108.
  • the individual hot silos 6 are shown in FIG. 2, the numbers in the individual silos relating to the particle size.
  • the hot silo 0 - 4 receives material with the smallest particle size, corresponding to the smallest mesh size NW4.
  • NW10 corresponds to the smaller mesh size, NW18 the medium, NW25 the larger and NW 32 the largest mesh size.
  • a collecting device G32 is provided at the right-hand end of the drum for the oversized grain, whereby the oversized grain can also be directed into the adjacent silo by a switching flap, which is in itself intended for the grain sizes between NW25 and NW32.
  • the individual ring screen sections are provided with the reference number which corresponds to the mesh size of the associated screen.
  • the NW32 sieve therefore has a mesh size of 32, making it the sieve with the largest mesh size.
  • the NW4 sieve is the sieve with the smallest mesh size and so on.
  • 100% denotes the entire screenings that arrive at the left-hand end of the drum 2 and enter the radially inner annular space 8 through the openings 9.
  • the material to be sieved reaches the ring sieve section NW10 and all particles larger than the mesh size NW10 reach the sieves NW25 and NW32 in the axial direction.
  • the particles falling through the ring sieve sections 10 enter the outer annular space 108.
  • the smaller particles fall through the ring sieve sections NW4.
  • the screenings in question here are at least 40% of the total screenings. Particles with a size between the mesh size 10 and 4 advance in the axial direction and are collected in an additional collecting section. This portion of the screenings has about 20% of the total screenings.
  • Material larger than NW10 reaches the ring screen sections NW32 in the axial direction.
  • the larger particles go as quantity G32 into a separate collection container, which in turn is about 20% of the total quantity.
  • the proportion of the amount of material to be screened which falls through the ring sieve sections 32 is divided into the ring sieve sections NW18 and NW25 into the quantities with grain sizes 18-10 and 25-18, experience having shown that the two proportions are each 10%.
  • the sensitive, finest ring sieve section NW4 is only acted upon with 60% of the total quantity of sieved material.
  • the parts of the quantity of material to be screened which do not fall through the ring sieve sections NW4 are particles with only a slightly larger particle size than the mesh size of the ring sieve section NW4, i.e. the finest sieve is not particularly mechanically stressed by such particles.
  • the screening drum 2 can also be operated with an inclined axis, both on the one hand and on the other end, so that the material to be screened remains correspondingly longer on the screens.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Centrifugal Separators (AREA)
  • Toys (AREA)
  • Soil Working Implements (AREA)
  • Harvester Elements (AREA)
  • Developing Agents For Electrophotography (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Holo Graphy (AREA)
EP92110438A 1991-06-29 1992-06-20 Siebtrommel Expired - Lifetime EP0521361B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4121585A DE4121585C1 (zh) 1991-06-29 1991-06-29
DE4121585 1991-06-29

Publications (3)

Publication Number Publication Date
EP0521361A2 EP0521361A2 (de) 1993-01-07
EP0521361A3 EP0521361A3 (en) 1993-03-10
EP0521361B1 true EP0521361B1 (de) 1995-01-11

Family

ID=6435065

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92110438A Expired - Lifetime EP0521361B1 (de) 1991-06-29 1992-06-20 Siebtrommel

Country Status (5)

Country Link
EP (1) EP0521361B1 (zh)
AT (1) ATE116875T1 (zh)
DE (2) DE4121585C1 (zh)
FI (1) FI94730C (zh)
GB (1) GB2249271B (zh)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9206445U1 (de) * 1992-05-13 1992-10-01 Heller, Bernhard, 8201 Tuntenhausen Kompostierer
DE19543976C2 (de) * 1995-01-18 1999-07-08 Lintec Gmbh & Co Kg Siebtrommel zum Konditionieren und Klassieren von körnigem Gut
FI107176B (fi) * 1999-01-08 2001-06-15 Saarijaerven Seudun Yrityspalv Kiviaineksen lämmitysyksikkö
FI20000925A (fi) * 2000-04-18 2001-10-19 Kalevi Juhani Hakkarainen Päällystemassa-asema
CN1978072A (zh) * 2005-12-08 2007-06-13 琳得科有限及两合公司 用于粒状材料分级的滚筒筛
DE102007046779A1 (de) * 2007-09-29 2009-11-12 Künkel-Wagner Prozesstechnologie GmbH Selektieren eines nach der Gussherstellung anfallenden Altsandstroms
FR2951095B1 (fr) * 2009-10-09 2012-10-05 Suez Environnement Procede et installation de traitement de dechets menagers, et autres dechets assimiles
CN103126055B (zh) * 2013-03-06 2014-12-24 湖北中烟工业有限责任公司 一种多级滚筒式筛分打叶机
CN103301910B (zh) * 2013-06-04 2015-07-15 广西华锡集团股份有限公司 一种用于球磨机出料口矿浆预筛分的圆筒筛及其装配工艺
CN103286070B (zh) * 2013-06-13 2015-10-28 无锡朗特机械设备有限公司 变螺距变孔距滚筒筛分离器
CN103286069B (zh) * 2013-06-13 2015-10-28 无锡朗特机械设备有限公司 变孔距滚筒筛分离器
CN109382307A (zh) * 2018-11-26 2019-02-26 南京芬钢环保科技有限公司 钢渣预选滚筒筛及热闷渣预选方法
DE102021107719B3 (de) 2021-03-26 2022-04-28 Soil2Sand UG (haftungsbeschränkt) Verfahren zur Gewinnung eines sandartigen Bodenbaustoffs und dessen Verwendung zur Herstellung von Beton
CN113786925B (zh) * 2021-09-10 2022-04-12 广东灿城农产品集团有限公司 用于农产品加工的多级自动生产线
DE102022106905B3 (de) 2022-03-23 2023-01-05 Jörg K. Müller Verfahren zur Gewinnung eines feinkrümeligen Kultursubstrats und dessen Verwendung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU839605A1 (ru) * 1979-08-10 1981-06-23 Государственный Научно-Исследова-Тельский Институт По Керамзиту Классификатор сыпучих материалов
SU1121056A1 (ru) * 1983-01-10 1984-10-30 Государственный Научно-Исследовательский Институт По Керамзиту Классификатор сыпучих материалов
DE3801383A1 (de) * 1988-01-19 1989-07-27 Linnhoff Maschinenbau Siebtrommel
DE3841230A1 (de) * 1988-12-07 1990-06-21 Wibau Gmbh Trocknungs- und sortiereinrichtung fuer koerniges schuettgut

Also Published As

Publication number Publication date
DE4121585C1 (zh) 1992-08-06
ATE116875T1 (de) 1995-01-15
FI920789A (fi) 1992-12-30
EP0521361A2 (de) 1993-01-07
DE59201176D1 (de) 1995-02-23
FI94730C (fi) 1995-10-25
FI94730B (fi) 1995-07-14
GB2249271A (en) 1992-05-06
GB9123533D0 (en) 1992-01-02
GB2249271B (en) 1993-11-17
FI920789A0 (fi) 1992-02-24
EP0521361A3 (en) 1993-03-10

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