EP1155750A1 - Zentrierbare Spaltdichtung, insbesondere für Mühlen und Sichter - Google Patents
Zentrierbare Spaltdichtung, insbesondere für Mühlen und Sichter Download PDFInfo
- Publication number
- EP1155750A1 EP1155750A1 EP01110802A EP01110802A EP1155750A1 EP 1155750 A1 EP1155750 A1 EP 1155750A1 EP 01110802 A EP01110802 A EP 01110802A EP 01110802 A EP01110802 A EP 01110802A EP 1155750 A1 EP1155750 A1 EP 1155750A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- annular gap
- seal according
- gap seal
- intermediate piece
- rotating
- 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
Links
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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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
-
- 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
Definitions
- the invention relates to an annular gap seal for in particular Process engineering machines according to the preamble of claim 1.
- two rooms must be standing and standing a rotating wall will be sealed against each other, and while preventing wear on the respective rotating work part or the standing boundary wall.
- the wear can in general only can be prevented by a non-contact seal.
- the sealing gap In order to obtain a sufficient sealing effect between the two rooms, the sealing gap must be as narrow as possible. In addition, it is Commonly, such sealing gaps with the help of a fluid flow, e.g. Purge air, too flow through, whereby an additional non-contact sealing effect is achieved.
- a fluid flow e.g. Purge air
- One area of application for such contactless gap seals is process engineering machines in which in a work area by a rotating working part, e.g. a mill rotor or a classifier wheel, on a product is mechanically affected.
- a rotating working part e.g. a mill rotor or a classifier wheel
- one product to be viewed the material to be viewed, is replaced by one Sifter wheel rotating in axis and one rotating exposed to superimposed air flow. This flow of visible air runs from the outside inside, against the centrifugal force through the classifier wheel. Due to the Mode of operation of the classifier wheel only particles with smaller grain size enter the inside of the classifier wheel and particles of larger grain size are turned outside rejected.
- the particles of smaller grain size sucked into the interior of the classifier wheel are called fines and must come from inside the classifier wheel via a fine material discharge, e.g. discharged a fixed pipe socket become.
- the particles of larger grain size are called coarse material and should remain in the work area.
- the work area in which both fine and coarse goods are available, must be from a second room, the fines discharge room, in which only fines are available may be sealed.
- the seal is made between the fixed one Discharge area and the rotating classifier wheel.
- the non-contact one Gasket is required to prevent wear of the rotating classifier wheel prevent.
- a viewing device is disclosed in the prior art according to DE 39 28 292 A1, which involves the formation of a gap seal between a fine material outlet pipe and a classifier wheel.
- annular disc which is in a ring the chamber surrounding the outlet pipe is adjustable. This measure will the sealing gap opposite the classifier wheel can be adjusted in its axial direction.
- the adjustable washer is evenly distributed over the circumference by several distributed, fixed bolts carried. By axially adjusting the bolts the washer is adjusted in the axial direction and thus the radial one Sealing gap set.
- the adjustability of the washer in the axial direction serves to determine the size of the to be able to adjust the radial sealing gap.
- the ring washer there is supported by ring seals in a chamber, the position of the Washer is determined by the position of the outlet pipe, not by the position the classifier wheel.
- the annular gap between the working part and the adjacent one Adjust the housing with difficulty.
- the manufacturing tolerances of the individual parts are namely in the case of economical production processes too rough to be assembled to be able to reach uniform and narrow gaps. Sealing gap and especially flushing gaps that are generated across large components, are subject to a high degree of thermal expansion and can during different operating conditions vary considerably.
- the object of the invention is therefore to provide an annular gap seal that very narrow and precisely positioned column allows the fixed Sealing surface can be centered relative to the rotating sealing surface.
- the sealing surfaces correspond to the boundary walls of the sealing gap.
- annular disc hereinafter defined as an intermediate piece, in the finished and assembled state within the machine retrospectively in relation to the rotating work part can be positioned and centered, manufacturing and operating tolerances can be easily compensated.
- the intermediate piece according to the invention has the further advantage that the gap-forming functional surfaces (outer radius of the rotating wall of the Working part and the inner radius of the annular intermediate piece) of sealing components coupled over the shortest possible connection distance are, so that thermal expansion occurs only little influence on the gap width to have.
- An additional advantage is the fact that the rotating working part together with the corresponding gap-forming functional area (ring-shaped intermediate piece) e.g. for cleaning purposes, on and off can be expanded. Another setting is the width of the Annular gap is no longer necessary after reassembly.
- An elastic sealing element seals between the standing boundary wall and the intermediate piece.
- This seal can be a simple O-ring seal as both opposite sealing surfaces are standing parts. Depending on the application can this standing seal axially or radially with a sealing surface work together.
- the ring-shaped intermediate piece detachably connected to the setting aid together with the spacers.
- the coaxial Position of the intermediate piece due to the still fixed position of the Reproducible recordings and the setting aid.
- a radially or axially sealing Hose seal provided that the axially or radially sealing ring seal replaced. Due to the changed position of the seal, this embodiment is required not the otherwise necessary accuracy in the height tolerance. Both the spacer and the standing boundary wall can also be made simpler.
- this is between the rotating one Boundary wall, i.e. the working part, and its drive shaft arranged.
- the through the Adjustment aid realized axial displacement of the rotating wall or the Working part could also by a slidable arrangement of the storage Drive shaft of the working part.
- Fig. 1 shows an annular gap seal according to the invention with the intermediate piece in the centering position.
- Fig. 2 shows an annular gap seal according to the invention with the intermediate piece in the operating position.
- Fig. 3 shows an annular gap seal according to the invention with releasable attachment of the adapter on the adjustment aid in the centering position and more detachable Attachment of the rotating boundary wall to the working part.
- Fig. 4 shows an annular gap seal according to the invention with releasable attachment of the adapter on the adjustment aid in the operating position and releasable Attachment of the rotating boundary wall to the working part.
- FIG 5 shows a design variant of the annular gap seal according to the invention where the adjustment aid between the working part and its drive shaft is arranged in the centering position.
- FIG. 6 shows a design variant of the annular gap seal according to the invention where the adjustment aid between the working part and its drive shaft is arranged in the operating position.
- FIG. 7 shows a centrifugal force sifter with an annular gap seal according to the invention.
- the annular intermediate piece (1) is of, for example, three spacers (5) evenly distributed over the circumference worn, which are supported on the housing (8).
- the spacers (5) are stored in receptacles (7).
- the spacers can be adjusted by adjusting the setting aid (9) (5) together with the intermediate piece (1) can be moved axially.
- a first (10) and optionally a second paragraph (11) are on the rotating boundary wall (12) of the working part (4) attached. If the intermediate piece (1) with the help of Adjustment aid (9) axially raised, so the inner ring surface of the Intermediate piece (1) to lie on the paragraphs (10, 11).
- the outside diameter the shoulders (10,11) is the inner diameter of the annular intermediate piece (1) adjusted. With this fit, the ring-shaped intermediate piece (1) aligned coaxially to the working part (4).
- the radially displaceable pictures (7) shift accordingly.
- the receptacles (7) can be rigidly fixed with the aid of the fastening means (13), so that they are in position relative to the housing (8) and the working part (4) no longer change.
- the annular intermediate piece (1) is now coaxial aligned.
- the intermediate piece (1) is together with the spacers (5) are lowered and adjusted by adjusting the setting aid (9) a position as shown in Fig. 2.
- the intermediate piece (1) is in Contact with the corresponding paragraphs (14, 15) on the standing Boundary wall (3).
- An elastic sealing element (17) seals between the standing boundary wall (3) and the intermediate piece (1).
- the gap seal is designed as a flushable annular gap (2a, 2b)
- a Flushing fluid via the supply line (19) into the interior of the housing (8) initiated and via one or more passages distributed over the circumference (21) passed into the area of the rinsing gap.
- the sealing of the Supply line (19) and passages (21) formed fluid channel via a above and an annular seal (17) formed below the fluid channel.
- FIG. 3 and 4 show a variant in which the ring-shaped The spacer (1) together with the spacers (5) can be detached using the setting aid (9) via a first connection means (16) and via a second connection means (18) is connected.
- 5 and 6 is a radially sealing hose seal as a seal variant (20) shown, which replaces the axially sealing ring seal (17).
- the adjustment aid (9) is between the rotating boundary wall (3), i.e. the working part (4), and its drive shaft (6) arranged.
- FIG. 7 shows the annular gap seal according to the invention in a centrifugal classifier for mechanical process engineering machines.
Landscapes
- Crushing And Grinding (AREA)
- Sealing Material Composition (AREA)
- Sealing Devices (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
Description
- 1
- Zwischenstück
- 2
- Ringspalt
- 3
- stehende Begrenzungswand
- 4
- Arbeitsteil
- 5
- Distanzteil
- 6
- Antriebswelle
- 7
- Aufnahme
- 8
- Gehäuse
- 9
- Einstellhilfe
- 10
- erster Absatz
- 11
- zweiter Absatz
- 12
- rotierende Begrenzungswand
- 13
- Befestigungsmittel
- 14
- erster korrespondierender Absatz
- 15
- zweiter korrespondierender Absatz
- 16
- erstes Verbindungsmittel
- 17
- elastisches Dichtelement
- 18
- zweites Verbindungsmittel
- 19
- Versorgungsleitung
- 20
- Schlauchdichtung
- 21
- Durchlaß
Claims (15)
- Ringspalt-Dichtung für insbesondere verfahrenstechnische Maschinen bei denen in einem Arbeitsraum durch ein rotierendes Arbeitsteil (4) auf ein Produkt mechanisch eingewirkt wird, zum Trennen zweier Räume mittels eines von einer stehenden (3) und einer rotierenden (12) Begrenzungswand begrenzten Ringspaltes (12), mit einem Zwischenstück (1) zwischen den Begrenzungswänden (3,12), das in einer Betriebsposition sowohl mit der stehenden Begrenzungswand (3) berührend abdichtet, als auch mit der rotierenden Begrenzungswand (12) den Ringspalt (2a, 2b) bildet dadurch gekennzeichnet, daß das Zwischenstück (1) aus der Betriebsposition in eine Zentrierposition verschiebbar ist, zum Zentrieren des Zwischenstücks (1) koaxial zur rotierenden Begrenzungswand.
- Ringspalt-Dichtung nach Anspruch 1, dadurch gekennzeichnet, daß der Ringspalt (12) in axialer Richtung verläuft
- Ringspalt-Dichtung nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Zwischenstück (1) in axialer Richtung verschieblich ist.
- Ringspalt-Dichtung nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß das Zwischenstück (1) in der Zentrierposition an mindestens einem Absatz (10,11) der rotierenden Wand (12) zentrierbar ist.
- Ringspalt-Dichtung nach Anspruch 1 bis 4, dadurch gekennzeichnet, daß das Zwischenstück (1) mindestens ein elastisches Dichtelement (17) aufweist, die in der Betriebsposition mit mindestens einem korrespondierendem Absatz (14,15) an der stehenden Begrenzungswand (3) in abdichtendem Kontakt steht.
- Ringspalt-Dichtung nach Anspruch 5, dadurch gekennzeichnet, daß das elastische Dichtelement (17) eine Schlauch- oder O-Ring-Dichtung ist.
- Ringspalt-Dichtung nach Anspruch 1 bis 6, dadurch gekennzeichnet, daß das Zwischenstück (1) ein oder mehrere Durchlässe (21) aufweist, über die der Ringspalt (2) aus mindestens einer Versorgungsleitung (19) mit einem Fluid spülbar ist.
- Ringspalt-Dichtung nach Anspruch 7, dadurch gekennzeichnet, daß die Durchlässe (21) und/oder die Versorgungsleitungen (19) zwischen mindestens zwei der mehreren elastischen Dichtelemente (17) angeordnet sind.
- Ringspalt-Dichtung nach Anspruch 3, dadurch gekennzeichnet, daß das Zwischenstück (1) mit einem axial verschieblichen Distanzteil (5) verbunden ist.
- Ringspalt-Dichtung nach Anspruch 9, dadurch gekennzeichnet, daß das Distanzteil (5) in einer in radialer Ebene verschieblichen Aufnahme (7) gelagert ist.
- Ringspalt-Dichtung nach Anspruch 10, dadurch gekennzeichnet, daß die Aufnahme (7) durch ein Befestigungsmittel (13) starr in Bezug auf die stehende Begrenzungswand (3) arretierbar ist.
- Ringspalt-Dichtung nach Anspruch 11, dadurch gekennzeichnet, daß das Distanzteil (5) über eine Einstellhilfe (9) axial verstellbar und/oder in unterschiedlichen Höhen axial arretierbar ist.
- Ringspalt-Dichtung nach Anspruch 12, dadurch gekennzeichnet, daß das Distanzteil (5) über Verbindungsmittel (16,18) lösbar mit der Einstellhilfe (9) verbunden ist.
- Ringspalt-Dichtung nach Anspruch 13, dadurch gekennzeichnet, daß die Einstellhilfe (9) zwischen rotierender Begrenzungswand (12) und deren Antriebswelle (6) angeordnet ist.
- Mühle oder Sichter mit einer Ringspalt-Dichtung nach Anspruch 1 bis 14.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10024774A DE10024774A1 (de) | 2000-05-19 | 2000-05-19 | Zentrierbare Spaltdichtung,insbesondere für Mühlen und Sichter |
DE10024774 | 2000-05-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1155750A1 true EP1155750A1 (de) | 2001-11-21 |
EP1155750B1 EP1155750B1 (de) | 2003-08-27 |
Family
ID=7642772
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01110802A Expired - Lifetime EP1155750B1 (de) | 2000-05-19 | 2001-05-04 | Zentrierbare Spaltdichtung, insbesondere für Mühlen und Sichter |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1155750B1 (de) |
AT (1) | ATE248033T1 (de) |
DE (2) | DE10024774A1 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1852189A3 (de) * | 2006-05-06 | 2008-01-23 | HOSOKAWA ALPINE Aktiengesellschaft | Anlagenkonzept für Mühlen und Sichter mit Magnetlagerspindelantrieb |
CN108043566A (zh) * | 2017-12-13 | 2018-05-18 | 马鞍山市荣亿密封材料有限责任公司 | 一种主轴密封监控装置 |
CN111841858A (zh) * | 2020-07-28 | 2020-10-30 | 肖兴魁 | 一种自动上料的矿粉生产线 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4919795A (en) * | 1988-01-18 | 1990-04-24 | Onoda Cement Company, Ltd. | Leakage prevention apparatus for a classifier |
EP0415322A2 (de) * | 1989-08-26 | 1991-03-06 | Roland Dr.-Ing. Nied | Verschleissanzeige |
-
2000
- 2000-05-19 DE DE10024774A patent/DE10024774A1/de not_active Withdrawn
-
2001
- 2001-05-04 AT AT01110802T patent/ATE248033T1/de not_active IP Right Cessation
- 2001-05-04 EP EP01110802A patent/EP1155750B1/de not_active Expired - Lifetime
- 2001-05-04 DE DE50100537T patent/DE50100537D1/de not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4919795A (en) * | 1988-01-18 | 1990-04-24 | Onoda Cement Company, Ltd. | Leakage prevention apparatus for a classifier |
EP0415322A2 (de) * | 1989-08-26 | 1991-03-06 | Roland Dr.-Ing. Nied | Verschleissanzeige |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1852189A3 (de) * | 2006-05-06 | 2008-01-23 | HOSOKAWA ALPINE Aktiengesellschaft | Anlagenkonzept für Mühlen und Sichter mit Magnetlagerspindelantrieb |
US7863788B2 (en) | 2006-05-06 | 2011-01-04 | Hosokawa Alpine Aktiengesellschaft | System concept for mills and classifiers with magnetic bearing spindle drives |
CN108043566A (zh) * | 2017-12-13 | 2018-05-18 | 马鞍山市荣亿密封材料有限责任公司 | 一种主轴密封监控装置 |
CN108043566B (zh) * | 2017-12-13 | 2020-02-18 | 马鞍山市荣亿密封材料有限责任公司 | 一种主轴密封监控装置 |
CN111841858A (zh) * | 2020-07-28 | 2020-10-30 | 肖兴魁 | 一种自动上料的矿粉生产线 |
Also Published As
Publication number | Publication date |
---|---|
ATE248033T1 (de) | 2003-09-15 |
DE50100537D1 (de) | 2003-10-02 |
EP1155750B1 (de) | 2003-08-27 |
DE10024774A1 (de) | 2001-11-22 |
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