EP1506052A1 - Seitenschaufel, doppelwellenmischer mit seitenschaufel - Google Patents
Seitenschaufel, doppelwellenmischer mit seitenschaufelInfo
- Publication number
- EP1506052A1 EP1506052A1 EP03730034A EP03730034A EP1506052A1 EP 1506052 A1 EP1506052 A1 EP 1506052A1 EP 03730034 A EP03730034 A EP 03730034A EP 03730034 A EP03730034 A EP 03730034A EP 1506052 A1 EP1506052 A1 EP 1506052A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mixing
- mixing element
- mixer
- radially inner
- radially outer
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/60—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis
- B01F27/70—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms
- B01F27/701—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers
- B01F27/706—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms comprising two or more shafts, e.g. in consecutive mixing chambers with all the shafts in the same receptacle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/051—Stirrers characterised by their elements, materials or mechanical properties
- B01F27/052—Stirrers with replaceable wearing elements; Wearing elements therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/09—Stirrers characterised by the mounting of the stirrers with respect to the receptacle
- B01F27/091—Stirrers characterised by the mounting of the stirrers with respect to the receptacle with elements co-operating with receptacle wall or bottom, e.g. for scraping the receptacle wall
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
- B01F35/50—Mixing receptacles
- B01F35/511—Mixing receptacles provided with liners, e.g. wear resistant or flexible liners
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F2215/00—Auxiliary or complementary information in relation with mixing
- B01F2215/04—Technical information in relation with mixing
- B01F2215/0413—Numerical information
- B01F2215/0418—Geometrical information
- B01F2215/0422—Numerical values of angles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/114—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections
- B01F27/1144—Helically shaped stirrers, i.e. stirrers comprising a helically shaped band or helically shaped band sections with a plurality of blades following a helical path on a shaft or a blade support
Definitions
- the mixer further comprises a mixer shaft arranged along the mixer axis, to which a plurality of mixing elements are attached, these mixing elements each being arranged adjacent to the inner surface of the trough with a scraper edge, at least one of the end faces of the mixing trough being associated with a mixing element serving as a reversing element, the scraper of which edge extends both along the lateral surface and along this end face, this reversing member having a mixer arm attached to the mixer shaft and a radially outer mixing element and an adjacent radially inner mixer element which are fastened to the mixer arm and together form the stripping edge of the mixer element , wherein the wiping edge portion of the radially outer mixing element extends both along the lateral surface and along the end face, while the wiping edge portion of the radially inner mixing element extends only along the end face t.
- the invention relates in particular to a twin-shaft mixer comprising two mixers of the type specified, the mixing spaces of which merge into one another and are arranged such that the two
- the mixer shaft is rotatably mounted on the two end faces of the mixing trough and is rotated by a drive which is generally arranged outside the mixing trough.
- Mixing elements are attached to the mixer shaft at predetermined intervals, which rotate together with the mixer shaft around the mixer axis and each comprise a mixer arm to which one or more mixing elements for conveying mixed material are fastened in the mixing space.
- the mixing elements are generally in the shape of a shovel and are set at an angle with respect to a surface line of the mixing trough parallel to the mixer axis such that the material to be mixed is moved in the axial direction. They have at least one scraping edge which is adjacent to the inner surface of the trough and which serves to collect mixed material lying against the inner wall of the trough.
- a double-shaft mixer of the type mentioned is known for example from DE 198 56 622 A1.
- a twin-shaft mixer is set out, in which the reversing element comprises two mixing elements which are adjacent to one another in the radial direction and which are attached to the mixer arm in such a way that their respectively adjacent boundary surfaces are essentially perpendicular to their respective scraping edge section on the end face of the mixing trough , Both the radially inner and the radially outer mixing element are held by corresponding fastening elements on the mixer arm attached to the mixer shaft.
- the radially inner mixing element and the radially outer mixing element preferably abut one another on the front side and / or the rear side of the mixing elements with rectilinear boundary edges.
- the front of the mixing elements is to be understood as the surface of the mixing elements facing forward when the mixing element rotates
- the rear of the mixing elements is to be understood as meaning the surface of the mixing elements pointing backwards when the mixing element rotates.
- rectilinear boundary edges are easy to implement in terms of production technology.
- curved boundary edges for example concave, that is to say curved toward the mixer shaft, or convex, ie, curved boundary edges between the radially inner mixing element and the radially outer mixing element, are also possible.
- a particularly effective support of the radially outer mixing element can be achieved if the boundary surface of the radially inner mixing element lying on the radially outer mixing element and the delimiting surface of the radially outer mixing element resting on the radially inner mixing element overlap one another.
- the radially outer mixing element is secured against displacement both from the end wall and towards the end wall by the positive connection with the radially inner mixing element.
- the boundary surfaces can also engage or overlap one another in a direction running essentially perpendicular to the front and rear of the mixing elements.
- Mixing material particles which are located in the area of the mixer shaft on the respective end wall can be prevented from being transported by the rotation of the mixing element into the area between the radially inner boundary surface of the radially inner mixing element and the mixer shaft and accumulating there.
- Such an accumulation would result in mixed material particles in the bearings, by means of which the mixer shaft on the front Wall of the mixing trough is stored, and can penetrate between the mixer arm and the radially inner mixing element.
- the former case would result in the rotatability of the mixer shaft in the bearing being impaired and the bearing being blocked in extreme cases.
- the latter case could result in the radially inner mixing element gradually becoming detached from the mixer arm and thus increasing the wear of the mixing element. It is pointed out that such a sealing mixing element also brings about an improvement in the reversing element if the reversing blade is otherwise conventionally designed.
- the two mixing elements 44, 46 are fastened to the mixer arm 42 by means of slot-like recesses 70 and screws 72, so that they rotate together with the latter about the mixer axis A-A.
- the mixing elements 44, 46 are further arranged such that their respective wiper edge sections 50, 48a lying adjacent the end wall 12 form a common linear wiper edge 32 of the reversing vane 20 which is adjacent the end wall 12.
- a further sealing mixing element 80 is attached to the mixer arm 42 in the region of the mixer shaft 14 (not shown in FIG. 2).
- This sealing mixing element 80 has a wiping edge 82 which extends along the end wall 12 of the mixing trough and which, in a projection in the radial direction, extends approximately between the mixer axis AA and the radially inner boundary surface of the radially inner mixing element 46.
- the stripping edge 82 of the sealing mixing element 80 is arranged such that it runs in the circumferential direction 16 of the reversing blade 20 of the stripping edge 32 of the reversing blade 20 formed by the radially inner 46 and radially outer 44 mixing element with the end face 12 of the mixing trough.
- the function of the sealing mixing element 80 is primarily to prevent mixed material that has accumulated on the end wall 12 in the area of the mixer shaft 14 by the movement of the reversing vane 20 into the area between the mixer shaft 14 and the radially inner boundary of the radially inner mixing element 46 is pressed.
- An accumulation of mixed material in this area would lead to mixed material penetrating into the rotary bearing, by means of which the mixer shaft 14 is supported on the end wall 12 of the mixing trough, and gradually blocking it, and that the mixed material penetrates between the mixer arm 42 and the mixing element 46 , which leads to wear and detachment of the mixing element 46.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Accessories For Mixers (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10222080A DE10222080A1 (de) | 2002-05-17 | 2002-05-17 | Seitenschaufel, Doppelwellenmischer mit Seitenschaufel |
| DE10222080 | 2002-05-17 | ||
| PCT/EP2003/005070 WO2003097225A1 (de) | 2002-05-17 | 2003-05-14 | Seitenschaufel, doppelwellenmischer mit seitenschaufel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1506052A1 true EP1506052A1 (de) | 2005-02-16 |
| EP1506052B1 EP1506052B1 (de) | 2005-09-14 |
Family
ID=29285534
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP03730034A Expired - Lifetime EP1506052B1 (de) | 2002-05-17 | 2003-05-14 | Seitenschaufel, doppelwellenmischer mit seitenschaufel |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP1506052B1 (de) |
| CN (1) | CN1305554C (de) |
| AU (1) | AU2003240642A1 (de) |
| DE (2) | DE10222080A1 (de) |
| WO (1) | WO2003097225A1 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007015423A1 (de) | 2007-03-30 | 2008-10-02 | Arthur Habermann Gmbh & Co. Kg | Mischschaufel mit Leitrippen |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008045652A1 (de) * | 2008-09-03 | 2010-05-20 | Alco-Food-Machines Gmbh & Co. Kg | Lebensmittelmischanlage zur Verarbeitung von Lebensmitteln |
| PL3200906T3 (pl) * | 2014-09-30 | 2019-08-30 | Andritz Feed & Biofuel A/S | Sposób obsługi mieszarki okresowej i mieszarka okresowa do przeprowadzania tego sposobu |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB790011A (en) * | 1954-07-31 | 1958-01-29 | Loedige Wilhelm | Glueing machine with an incorporated glue atomiser |
| DE2800371A1 (de) * | 1978-01-05 | 1979-07-12 | Loedige Maschbau Gmbh Geb | Mischer mit in einem zylindrischen oder teilzylindrischen mischbehaelter umlaufenden mischwerk |
| DE3543745A1 (de) * | 1985-12-11 | 1987-06-19 | Bhs Bayerische Berg | Doppelwellen-zwangsmischer fuer kontinuierliche und diskontinuierliche arbeitsweise |
| DE3610319A1 (de) * | 1986-03-26 | 1987-10-01 | Bhs Bayerische Berg | Mischer |
| JP3209941B2 (ja) * | 1997-04-28 | 2001-09-17 | 花王株式会社 | 混合方法および混合装置 |
| US6290383B1 (en) * | 1998-06-24 | 2001-09-18 | Processall, Inc. | Apparatus mixing, filtering, reacting and drying materials |
-
2002
- 2002-05-17 DE DE10222080A patent/DE10222080A1/de not_active Withdrawn
-
2003
- 2003-05-14 AU AU2003240642A patent/AU2003240642A1/en not_active Abandoned
- 2003-05-14 WO PCT/EP2003/005070 patent/WO2003097225A1/de not_active Ceased
- 2003-05-14 DE DE50301202T patent/DE50301202D1/de not_active Expired - Fee Related
- 2003-05-14 EP EP03730034A patent/EP1506052B1/de not_active Expired - Lifetime
- 2003-05-14 CN CNB038140780A patent/CN1305554C/zh not_active Expired - Fee Related
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03097225A1 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007015423A1 (de) | 2007-03-30 | 2008-10-02 | Arthur Habermann Gmbh & Co. Kg | Mischschaufel mit Leitrippen |
Also Published As
| Publication number | Publication date |
|---|---|
| DE50301202D1 (de) | 2005-10-20 |
| AU2003240642A1 (en) | 2003-12-02 |
| DE10222080A1 (de) | 2003-11-27 |
| CN1305554C (zh) | 2007-03-21 |
| CN1662296A (zh) | 2005-08-31 |
| EP1506052B1 (de) | 2005-09-14 |
| WO2003097225A1 (de) | 2003-11-27 |
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