EP1529568A2 - Séparateur cyclonique - Google Patents

Séparateur cyclonique Download PDF

Info

Publication number
EP1529568A2
EP1529568A2 EP04026293A EP04026293A EP1529568A2 EP 1529568 A2 EP1529568 A2 EP 1529568A2 EP 04026293 A EP04026293 A EP 04026293A EP 04026293 A EP04026293 A EP 04026293A EP 1529568 A2 EP1529568 A2 EP 1529568A2
Authority
EP
European Patent Office
Prior art keywords
cyclone separator
separator according
housing part
section
diaphragm
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
EP04026293A
Other languages
German (de)
English (en)
Other versions
EP1529568B1 (fr
EP1529568A3 (fr
Inventor
Joachim Dr. Galk
Marc Giersemehl
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.)
Neuman und Esser GmbH Mahl Und Sichtsysteme
Original Assignee
Neuman und Esser GmbH Mahl Und Sichtsysteme
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 Neuman und Esser GmbH Mahl Und Sichtsysteme filed Critical Neuman und Esser GmbH Mahl Und Sichtsysteme
Publication of EP1529568A2 publication Critical patent/EP1529568A2/fr
Publication of EP1529568A3 publication Critical patent/EP1529568A3/fr
Application granted granted Critical
Publication of EP1529568B1 publication Critical patent/EP1529568B1/fr
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
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/08—Vortex chamber constructions
    • B04C5/103—Bodies or members, e.g. bulkheads, guides, in the vortex chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C9/00—Combinations with other devices, e.g. fans, expansion chambers, diffusors, water locks

Definitions

  • the invention relates to a cyclone separator with a crusherrad receiving cylindrical housing part, the one Tangentialeinlaufgephaseuse and a fine dust outlet having, and with a downwardly adjoining separation area, the one down to the cylindrical housing part subsequent conical housing part with product outlet and Secondary air intake includes.
  • the curve A describes the cumulative distribution of the ground material, the is fed to the cyclone separator.
  • it is is about powder coating for the automotive industry, what in the In connection with the examples will be explained in detail.
  • Curve B describes the cumulative distribution using conventional cyclone sight is achieved. It is clear to see that indeed achieved the desired reduction of fine dust content is, but that also reduces the yield above 10 microns becomes.
  • the ideal curve C is not with conventional Zyklonsichtem either to achieve approximately, although many attempts have been made to improve the classification.
  • DE 196 08 142 A1 discloses a cyclone separator known to improve the classification in the deposition area in the conical, downwardly tapering housing section a having axially extending installation. This one of several sections Built-in installation separates the cyclone-typical, in the peripheral area downwards and upwards in the central area Carrier gas / particle flows from each other. Inside the installation are another mounting body arranged to an upward To achieve nozzle or suction effect.
  • a cyclone separator is described in DE 100 30 705 A1, which also has an installation in the separation area, extending from the upper cylindrical housing section into the lower one located conical housing portion extends and himself tapered downwards. Located below this first installation a second installation, the distance below the lower opening the first installation is arranged and the shape of a down has widening cone sheath. The second installation forms with the Exterior housing a defined gap, where a further sighting of the downwardly directed carrier gas / particle flows.
  • a cyclone separator is known with a inlet channel for the air-solid mixture arranged above the separator wheel.
  • a conical built-in part of the room divided between classifier wheel and housing wall In the transition area from the cylindrical and conical housing part in the area of Secondary air inlet is installed another conical insert.
  • the grinding material supplied to the cyclone separator is subject to the Centrifugal force on the one hand and the drag force on the other hand, where for small particles the drag force is greater than the centrifugal force.
  • the product i. H. the coarse fraction of the Collects inside of the cylindrical housing part and from there to slips down into the separation area.
  • This coarse-grained good contains but still a residue of fine dust fraction, which by the removed below the conical housing part supplied secondary air should be, by the residual fine dust content upwards in the range the conveyerrades to be entrained.
  • Another advantage is that the secondary air quantity significantly can be reduced. This is obviously related to that in the area of the reduction of the flow cross-section for the Secondary air sets a nozzle effect. The efficiency in terms the fluidization of the product is significantly increased. Of the Secondary air content could therefore be reduced by 30 to 50%.
  • the flow cross section between reformerrad and the wall of the cylindrical housing part constricted.
  • the constriction in the classifying area the lower portion of the classifying area being preferred.
  • the annular cross-section with the surface F and with the radial width B of the separator wheel and wall of the cylindrical Housing located annular space between the lower edge of the Tangentialeinlaufgeophuses and the lower edge of the reformerradesti reduced at least one place.
  • the area of the Flow cross-section perpendicular to the longitudinal axis of the cyclone separator.
  • the ratio of the diameters D G to D S is preferably 1.3 ⁇ V ⁇ 1.5 and particularly preferably 1.3 ⁇ V ⁇ 1.4.
  • the reduction or constriction of the flow cross section can done in different ways, it just being on it arrives, that before the separation area, in particular at Transition from classifying and separating area one Cross-section reduction is created.
  • the Cross-section reduction can, for example, radially from the outside extend inward or radially from inside to outside.
  • the wall of the housing at the location where the Constriction should be present have a radial constriction.
  • This radial constriction can in the cylindrical housing part and / or be mounted in the conical housing part.
  • At least one aperture is preferred at the location of Used constriction, which is preferably solvable, so lighter according to the product and classification requirements Replacing the aperture is possible. It is also provided by means of Blend a retrofit existing cyclone judges make.
  • the bezel can be attached to the housing wall and / or the reformerrad and / or be arranged centrally under the reformerrad.
  • the aperture can be an annular disc or to be a slice. It is also possible to use perforated plates or perforated rings use the flow cross section completely or partially cover the product available for the product Flow cross section by size and number of holes or Openings and the dimension of the plate or ring defined becomes.
  • the aperture may also be an iris diaphragm, the is infinitely adjustable.
  • a diaphragm which is a triangular Cross section has.
  • This version has the advantage that through at least one inclined surface the product slightly down can slip and can not be deposited on the aperture. Product losses are thereby avoided and a cleaning in the Area of the aperture can be avoided when changing the product.
  • the one facing the tangential inlet housing Angle ⁇ of the triangular aperture between 10 ° and 20 °.
  • the tangential inlet housing facing away from the Angle ⁇ of the aperture between 40 ° and 90 °.
  • the diaphragm is preferably in the axial direction slidably disposed of the cyclone viewer.
  • a preferred embodiment of the diaphragm has at the Inner surface of the wall of the cylindrical housing part adjacent cylindrical ring and a conical ring on. At the surface of the conical ring that slips on the cylindrical housing wall depositing product down into the area of the narrowed Flow cross section and is there from the ascending Secondary air stirred up.
  • the cylindrical ring having in the axial direction extending slots, wherein the Slots are preferably open at the bottom and have different lengths.
  • the aperture is preferably in the region of the wall of the cylindrical Housing part and there above the lower edge of the treaterrades arranged.
  • the aperture can also be down to the room below extend the lower edge of the treaterrades or conical Be arranged housing part, if so a cross-sectional constriction between the aperture and reformerrad is guaranteed.
  • the constriction of the flow cross section can also be formed by a component of the classifier wheel.
  • the diameter D B of the bottom plate of the classifier wheel is greater than the diameter D E of the envelope of the classifier blades. This means that the bottom plate of the classifier wheel projects clearly beyond the outer circumference of the classifier wheel and, together with the opposite housing wall, effects a reduction in cross-section.
  • the ratio D B / D E 1.15 ⁇ D B / D E ⁇ 1.3.
  • the classifier wheel can according to another embodiment also partially immerse in the conical housing part.
  • This case forms the edge of the classifier wheel bottom plate with the wall of conical Housing part a constriction of the cross section.
  • FIG. 2 is a vertical section through a cyclone separator 1 illustrated, which is a cylindrical housing part 20 substantially and a conical housing part 21.
  • the conical Housing part 20 has a wall 20 a, which substantially the Classifying area 6 encloses, in which a sorterrad 10 with reformerradvern 12 is arranged.
  • the cylindrical housing part 20 has a product / carrier gas inlet 2, which is designed as a so-called tangential inlet.
  • the Tangentialeinviergepatuse 3 has seen in the circumferential direction a continuously decreasing radius of curvature, so that the abandoned grinding material tangentially introduced into the classifying area can be.
  • the crusherrad 10 is located with its detoxierradêtplatte eleventh above the lower edge 22 and thus completely in the cylindrical Housing part 20.
  • a diaphragm 30 is arranged, which the Flow cross-section for down to the product outlet 25th constricting moving product.
  • the aperture 30 is related explained in detail with the following figures.
  • the classifying region 6 with the classifying wheel 10 is enlarged shown.
  • the classifier wheel 10 is opposite to the Tangentialeinlaufgeophuse 3 arranged lowered, which means that the lower edge 16 of the reformerrades 10 below the lower edge 4 of Tangentialeinlaufgeophuses 3 is arranged.
  • the upper edge of sorterrades 10 below the Top edge 5 of the tangential inlet housing 3 is arranged. 20% of the Height H of reformerradquest 12 are below the lower edge 4 of the tangential inlet housing 3rd
  • the ratio V D G / D S is the diameter of wall 20a and classifier wheel 10 is 1.32.
  • This diaphragm 30 is shown enlarged in the figure 4a.
  • the aperture 30 has a cylindrical ring 31 which is on the inside of the wall 20 a rests and can be releasably secured there by means of screws 39.
  • At the upper edge of the cylindrical ring 31 closes radially inside a horizontally arranged connecting ring 33, which in a conical ring 32 merges, which ends in the area of line 23 and there together with the sorterradbodenplatte 11 the constriction 9th forms.
  • the dividing line 23 marks the transition between classifying and Separation area.
  • the flow direction of the product is through the Case 50 marked.
  • the aperture 30 is shown in perspective, so that the in the cylindrical ring 31 located slots 36 can be seen.
  • the embodiment shown here are each 3 different lengths Long holes 36 arranged side by side, so that the aperture 30 three can occupy different positions when installed and the screws 39 shown in Figure 4a in the slots intervention.
  • FIG. 5 shows a further embodiment in which the Aperture 30 is formed as annular discs 34.
  • the Aperture 30 is formed as annular discs 34.
  • One or more These annular discs 34, 34 ' can be at different positions between the lower edge 4 of the Tangentialeinlaufgeophuses 3 and the be arranged lower edge 22 of the cylindrical housing part 20.
  • the aperture 30 is in the region of the lower edge 16 of the detoxerrades 10 arranged.
  • it can also be a diaphragm 34 ' be arranged below the prepared.
  • the dividing line 23 between classifying and Plotted area so that it becomes clear that even at a disposed below the reformerrades aperture 34 'a Einschnürstelle 9 is achievable.
  • FIG 6a a further embodiment is shown, wherein the Aperture 30, 35a has a triangular cross-section.
  • the the Tangentialeinlaufgeophuse 3 facing angle ⁇ is about 30%, during the tangential inlet housing 3 opposite angle ⁇ 60th % having.
  • This panel 35a can be detachable as a built-in part can be used and has 300 due to the inclined surface Similar advantages as those in connection with the figures 2 to 4 explained aperture 30.
  • the aperture 35a can also at different Positions (aperture 35 a ') disposed within the annular space 17 be.
  • FIG. 6b shows a further embodiment in which the Aperture 35b is a cross-section in the shape of an isosceles Triangle has.
  • FIG. 6 c shows a further embodiment in which the Panel 35c is a cross-section in the shape of an isosceles triangle forms, wherein the base of the triangle is the inclined surface 300. Even with this panel 35c, there are different Arrangement possibilities, which are indicated by the dashed lines Apertures 35 ', 35c "are indicated Classifying and separating area is also drawn in and it is to see that the aperture 35c "also below the reformerrades 10th can be arranged.
  • FIG. 7 shows a further embodiment in which the diaphragm 30 is formed by a radial projection 13 of the classifier wheel bottom plate 11.
  • the ratio of diameter D B of reformerradteilplatte 11 to diameter D E of the envelope 18 of reformerradunit 12 is 1.2 ,
  • FIG. 8 shows a further embodiment in which similar to Figure 7, the reformerradbodenplatte 11 a radial Supernatant 13 has, at the radially outwardly a hole ring 38th is arranged. The entire flow cross section is covered and the cross section available for the product is determined by the Openings formed in the hole ring 38. As in Figure 7 rotates the projection 13 and the hole ring 38 during operation of the Cyclone separator.
  • FIG. 9 shows a further arrangement in which the diaphragm 30 is formed by a centrally disposed disc 15, the below the preparerrad Camillplatte 11 is installed stationary.
  • the Fasteners of the disc 15 are for clarity not shown.
  • a perforated plate 37 is fixed below the reformerrades 10 built-in. Only the ring-shaped edge area, with the product comes into contact, is provided with openings, so that a perforated ring is formed similar to that in Figure 8.
  • FIG. 11 shows a further embodiment in which the Classifier wheel 10 is immersed in the cylindrical housing part 21, so that the edge of prepare for handling the product.
  • the dividing line 23 marks the Transition between classifying and separating area.
  • FIG. 12 shows a further embodiment that is itself from the figure 11 differs in that in addition to Dipping the crushererrades 10 in the conical housing part 21 still Apertures 30a and / or 30b are shown. These panels are located on the inside of the conical housing wall 21 and can arranged above and below the sorterradêtplatte 11 be.
  • FIG. 13 shows a further embodiment that forms itself from the figure 11 differs in that the reformerradbodenplatte 11 has a radial projection 13, whereby the Flow cross-section is further reduced.
  • FIG. 14 shows an embodiment which differs from that in FIG 11 distinguished embodiment in that below the sorterradbodenplatte 11 a disc 15 in the center is arranged. The constriction is thus also in the conical housing part 21.
  • FIG. 15 shows an embodiment in which the Housing wall 20 a of the cylindrical housing part 20 a Constriction 40, the shape of which shown in Figure 6b Aperture corresponds and thus also the advantages mentioned there having.

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  • Cyclones (AREA)
EP20040026293 2003-11-05 2004-11-05 Séparateur cyclonique Expired - Lifetime EP1529568B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2003152525 DE10352525B9 (de) 2003-11-05 2003-11-05 Zyklonsichter
DE10352525 2003-11-05

Publications (3)

Publication Number Publication Date
EP1529568A2 true EP1529568A2 (fr) 2005-05-11
EP1529568A3 EP1529568A3 (fr) 2006-06-07
EP1529568B1 EP1529568B1 (fr) 2008-07-30

Family

ID=34428661

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20040026293 Expired - Lifetime EP1529568B1 (fr) 2003-11-05 2004-11-05 Séparateur cyclonique

Country Status (2)

Country Link
EP (1) EP1529568B1 (fr)
DE (2) DE10352525B9 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107185837A (zh) * 2017-05-03 2017-09-22 大连理工大学 一种颗粒分级装置及其方法
US11117167B2 (en) 2016-04-11 2021-09-14 Neuman & Esser Process Technology Gmbh Separator

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10500592B2 (en) 2016-03-24 2019-12-10 Schenck Process Llc Roller mill system with rejects removal system

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE628291C (de) * 1936-04-01 Fried Krupp Grusonwerk Akt Ges Windsichter
DE2036891C3 (de) * 1970-07-24 1974-08-01 Hosokawa Funtaikogaku Kenkyusho, Osaka (Japan) Pulversichter
GB2041251B (en) * 1978-11-24 1982-10-20 Hosolawa Funtai Kogaku Kenkyus Pneumatic classifier
DE3018519A1 (de) * 1980-05-14 1981-11-19 Krupp Polysius Ag, 4720 Beckum Zyklon, insbesondere fuer mehrstufige waermetauscher
US4523990A (en) * 1984-03-13 1985-06-18 Mikropul Corporation Particulate classifying apparatus
JP2509374B2 (ja) * 1990-07-23 1996-06-19 株式会社クボタ 粉粒体分級装置
US5116488A (en) * 1990-08-28 1992-05-26 Kamyr, Inc. Gas sparged centrifugal device
DE4134874A1 (de) * 1991-10-23 1993-04-29 Zementanlagen Und Maschinenbau Sichter
JPH08281213A (ja) * 1995-04-14 1996-10-29 Ishikawajima Harima Heavy Ind Co Ltd 分級機
DE19608142B4 (de) * 1996-03-04 2013-10-10 Hosokawa Alpine Ag Zyklonsichter
US6193075B1 (en) * 1996-09-30 2001-02-27 Colgate-Palmolive Company Air classification of animal by-products
JP3236535B2 (ja) * 1997-07-15 2001-12-10 ホソカワミクロン株式会社 表面付着粉体の除去装置
JP4341048B2 (ja) * 1999-09-07 2009-10-07 協伸工業株式会社 異物除去装置
DE10030705A1 (de) * 2000-06-23 2002-01-03 Hosokawa Micron Gmbh Zyklonsichter mit zentralen Einbau

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11117167B2 (en) 2016-04-11 2021-09-14 Neuman & Esser Process Technology Gmbh Separator
CN107185837A (zh) * 2017-05-03 2017-09-22 大连理工大学 一种颗粒分级装置及其方法

Also Published As

Publication number Publication date
DE10352525B9 (de) 2009-07-23
DE502004007721D1 (de) 2008-09-11
DE10352525A1 (de) 2005-06-16
EP1529568B1 (fr) 2008-07-30
DE10352525B4 (de) 2009-03-05
EP1529568A3 (fr) 2006-06-07

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