WO1996022156A1 - Misch- und knetvorrichtung - Google Patents
Misch- und knetvorrichtung Download PDFInfo
- Publication number
- WO1996022156A1 WO1996022156A1 PCT/EP1996/000189 EP9600189W WO9622156A1 WO 1996022156 A1 WO1996022156 A1 WO 1996022156A1 EP 9600189 W EP9600189 W EP 9600189W WO 9622156 A1 WO9622156 A1 WO 9622156A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mixing
- kneading
- shaft
- elements
- housing
- Prior art date
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
- B01F27/707—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a horizontal or inclined axis with paddles, blades or arms the paddles co-operating, e.g. intermeshing, with elements on the receptacle wall
Definitions
- the invention relates to a mixing and kneading device for the particular thermal treatment of products in a liquid, pasty and / or powdery state with or without supply and discharge of gases and vapors in a housing in which a shaft rotates or on the disc segments. the like.
- "disc-like elements are arranged, which cooperate with fixed on the housing kneading counter, whereby between the elements and the kneading counter Kneturgiele ⁇ and the sheave segments, an open space is formed, in which a mixing arm is engaged by the shaft forth.
- the present invention has for its object to improve the mixing and kneading effect in the torus.
- mixing arms of different design engage from the shaft in the open space (toroidal space).
- the different design of the mixing arms should be such that the entire toroidal space is processed by means of relatively slim mixing arms. This means that unprocessed spaces are avoided within the toroidal space, which significantly improves the mixing and kneading effect. This results in a more even distribution of the product, since there are more elements that move the product. This also improves the mixing effect. Furthermore, it is avoided that mixing arms always move only on a predetermined path, and if, for example, a torus coincides, there are considerable force absorption peaks for the shaft. Due to the different design of the mixing arms, the product is evenly distributed in the machine, so that the force absorption of the shaft is even.
- Each mixing arm preferably consists of a trunk and a crossbar.
- the crossbar In one embodiment of the invention remember to always make the crossbar the same, while the trunk has a different length.
- the trunk can also have the same length and protrude approximately into the middle of the toroidal space.
- the crossbar of mixing arms within an annular toroidal space is designed differently. It can be set at an angle, rotated, curved, twisted, Z-shaped or S-shaped or the like. Many configurations are conceivable here which are intended to be encompassed by the invention.
- the mixing arm can pass through the product better, it should be designed in the form of a ploughshare. Here too there are different variations, which depend on the product to be processed.
- FIG. 1 shows a longitudinal section through part of a kneading and mixing device according to the invention
- FIG. 2 shows a cross section through the kneading and mixing device according to FIG. 1;
- FIGS. 7 to 9 cross section through various exemplary embodiments of mixing arms.
- a drum-shaped housing 1 in which a shaft 2 rotates, is shown from a mixing and kneading device.
- the kneading bars 5 pass through kneading gaps 6, which in cooperation with the inner wall 4 are formed by kneading counter-elements 7.
- the kneading counter elements 7 are constructed in a C-shape. They are fixed on the housing 1 via a foot 8. Following the foot 8, a kneading arm 9 runs approximately parallel to the inner wall 4 in the direction of the longitudinal axis A of the housing 1. Together with the inner wall 4, this kneading arm 9 forms the kneading gap 6.
- a knuckle arm 10 adjoins the kneading arm 9, which is approximately runs radially to the shaft 2 near the disc segment 3. Near the shaft 2, this scraping arm 10 merges into a shaft arm 11, which in turn is approximately parallel to the shaft 2 and axially parallel to the Longitudinal axis A runs counter to the kneading arm 9.
- Scraper arm 10 and shaft arm 11 essentially have the task of preventing incrustations of product on the disk segments 3 and the shaft 2, since these two elements of a kneading and mixing device are generally heated.
- the kneading bar 5 also has this task with respect to the inner wall 4, the kneading bar 5 additionally performing product kneading in the kneading gaps 6.
- kneading counter-elements 7 are distributed in an annular space formed by two disk segments 3.
- the kneading counter-elements 7 alternate in their direction, as shown in dashed lines in FIG. 1. However, together they form a toroidal space 12, which is largely filled with the product to be treated.
- the mixing arms are designed as T-fingers, each consisting of a stem 15 and a crossbar 16.
- the crossbar 16 is always of the same design, but the stem 15 has different lengths l ⁇ _, I2 and I3 for different mixing arms 14.1, 14.2 and 14.3 within an annular toroidal space 12.
- This makes it possible to machine the entire toroidal space 12 with one revolution of the shaft 2, so that there are no dead zones within the toroidal space 12 in which the product could possibly remain.
- the product is kept in motion, product incrustation is reduced and the kneading effect is significantly improved.
- there is a reduction in force absorption peaks when the shaft 2 is rotated since the product is always processed by at least two mixing arms 14 becomes. For the subsequent mixing arm there is no possibility to drive through the product in the same lane that was created by the leading mixing arm.
- Such an arrangement of relatively slim elements that protrude into the toroidal space to different extents is particularly useful for mixing and kneading devices, the interior dimensions of which are in a certain relationship to one another.
- the important parameters for this are the distance a of the shaft 2 from the inner wall 4 of the housing 1, which is formed from half a diameter d of the shaft 2 and an inner diameter D of the housing 1.
- This distance a should be greater than 5S, where S can be the width of the foot 8, the trunk 15, the crossbar 16, the kneading bar 5 or the like. Only when the distance a is above this dimension of 5S is it generally worthwhile to arrange different mixing arms.
- FIGS. 3 to 6 In Figures 1 and 2, only one embodiment of such different mixing arms is shown. Further exemplary embodiments can be found in FIGS. 3 to 6, and the invention is also not intended to be limited to these.
- a toroidal space 12 is always formed by two kneading counter-elements 7.1 and 7.2 arranged with respect to one another, although in practice this occurs only in a staggered manner.
- the stem 15 always has the same length, so that it ends approximately in the middle of the toroidal space 12.
- the crossbar 16 does not have to run axially parallel, as shown in FIG. 1, but can be arranged inclined to the longitudinal axis A. Different crossbars shown can then alternate with crossbars also running axially parallel within an annular toroidal space.
- the crossbeams can also be curved in an undulating or S-shaped manner. C-shaped crossbeams or those that zigzag are also conceivable. This depends on the product to be treated.
- torus 12 is only indicated by dashed lines.
- a finger-shaped mixing arm 14.7 engages in it, its transverse finger points 17 times to the left and sometimes to the right and its stem 15.7 has a different length.
- the cross section of the elements that pass through the product also appears important. Above all, this includes the mixing arm 14 but also the kneading bar 5, an edge of the disk segment 3 and the kneading counter element 7.
- the cross section is preferably ploughshare-like, which can be a simple triangular cross section according to FIG.
- the cross section is designed like a desk according to FIG. 7, wherein one side can also have a groove indicated by dashed lines. This improves the derivation of the product.
- FIG. 9 In the case of strongly crusting products, a cross section according to FIG. 9 is preferred, which brings about a high displacement performance and thus a large product movement.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
- Accessories For Mixers (AREA)
Abstract
Description
Claims
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/860,963 US5934801A (en) | 1995-01-18 | 1996-01-18 | Mixing and kneading apparatus |
DE59600991T DE59600991D1 (de) | 1995-01-18 | 1996-01-18 | Misch- und knetvorrichtung |
EP96901295A EP0804278B1 (de) | 1995-01-18 | 1996-01-18 | Misch- und knetvorrichtung |
DK96901295T DK0804278T3 (da) | 1995-01-18 | 1996-01-18 | Blande-og ælteindretning |
AU45373/96A AU691078B2 (en) | 1995-01-18 | 1996-01-18 | Mixing and kneading device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH136/95-1 | 1995-01-18 | ||
CH00136/95A CH688365A5 (de) | 1995-01-18 | 1995-01-18 | Misch- und Knetvorrichtung. |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1996022156A1 true WO1996022156A1 (de) | 1996-07-25 |
Family
ID=4180075
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1996/000189 WO1996022156A1 (de) | 1995-01-18 | 1996-01-18 | Misch- und knetvorrichtung |
Country Status (10)
Country | Link |
---|---|
US (1) | US5934801A (de) |
EP (1) | EP0804278B1 (de) |
AT (1) | ATE174528T1 (de) |
AU (1) | AU691078B2 (de) |
CA (1) | CA2210639A1 (de) |
CH (1) | CH688365A5 (de) |
DE (1) | DE59600991D1 (de) |
DK (1) | DK0804278T3 (de) |
ES (1) | ES2126380T3 (de) |
WO (1) | WO1996022156A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010060320A1 (de) | 2010-06-30 | 2012-02-16 | List Holding Ag | Verfahren zur thermischen Trennung einer Lösung aus thermoplastischen polymer und Lösungsmittel |
DE102014112579A1 (de) | 2013-08-30 | 2015-03-05 | List Holding Ag | Verfahren zum Herstellen einer chemischen Substanz |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19940521C2 (de) * | 1999-08-26 | 2003-02-13 | List Ag Arisdorf | Mischkneter |
US6991361B2 (en) * | 2000-04-05 | 2006-01-31 | Advanced Concrete Innovations, Inc. | Portable concrete plant |
US20020001255A1 (en) * | 2000-04-05 | 2002-01-03 | Flood Jeffrey D. | Portable concrete plant |
US6410783B1 (en) | 2000-10-19 | 2002-06-25 | Basf Corporation | Method of producing carboxylic acid salts |
WO2002089963A2 (de) * | 2001-04-25 | 2002-11-14 | List Ag | Radial oder axial reinigende mischbarren |
DE10331952A1 (de) * | 2003-07-15 | 2005-02-10 | Degussa Ag | Vorrichtung und Verfahren zur diskontinuierlichen Polykondensation |
DE102009036915A1 (de) | 2009-08-11 | 2011-02-24 | List Holding Ag | Verfahren zum Behandeln eines Monomers, Pre-Polymers, Polymers oder einer entsprechenden Mischung |
DE102013100182A1 (de) * | 2012-09-28 | 2014-06-05 | List Holding Ag | Verfahren zur Durchführung von mechanischen, chemischen und/oder thermischen Prozessen |
CN103432949A (zh) * | 2013-07-31 | 2013-12-11 | 南京化工特种设备检验检测研究所 | 高效低耗搅拌器 |
DK3155341T3 (da) | 2014-06-12 | 2020-07-13 | Hedinn Hf | Indretning til at koge og tørre organisk materiale |
JP6632549B2 (ja) | 2014-08-13 | 2020-01-22 | ベルサリス、ソシエタ、ペル、アチオニVersalis S.P.A. | ロータおよび攪拌装置 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB793457A (en) * | 1954-04-06 | 1958-04-16 | Loedige Wilhelm | Improvements relating to the mixing of materials |
DE2349106A1 (de) * | 1972-10-18 | 1974-05-02 | List Heinz | Mischkneter mit gegenschaufeln |
EP0220575A2 (de) * | 1985-10-25 | 1987-05-06 | Krauss-Maffei Aktiengesellschaft | Misch- und Knetvorrichtung |
DE3635877C1 (de) * | 1986-10-22 | 1987-10-15 | Heinz Nienhaus | Mischtrockner |
EP0289647A1 (de) * | 1987-05-06 | 1988-11-09 | List AG | Scheibenkneter |
EP0451747A1 (de) * | 1990-04-11 | 1991-10-16 | List AG | Kontinuierlich arbeitender Mischkneter |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB793456A (en) * | 1955-05-31 | 1958-04-16 | John Frederick William Harvey | Improvements in automatic adjustment mechanism for hydraulic brakes |
CH506322A (de) * | 1969-03-17 | 1971-04-30 | List Heinz | Mehrspindelige Misch- und Knetmaschine |
DE2123956C3 (de) * | 1970-05-20 | 1979-09-20 | Heinz Dipl.-Ing. Pratteln List (Schweiz) | Misch- und Knetmaschine |
EP0144092B1 (de) * | 1983-12-05 | 1988-10-12 | Dipl.-Ing. H. List Industrielle Verfahrenstechnik | Misch- und Knetmaschine |
CH672749A5 (de) * | 1986-12-19 | 1989-12-29 | List Ag | |
CH674318A5 (de) * | 1987-08-28 | 1990-05-31 | List Ag | |
CH680196A5 (de) * | 1988-02-16 | 1992-07-15 | List Ag | |
CH678285A5 (de) * | 1988-02-16 | 1991-08-30 | List Ag | |
DE4118884A1 (de) * | 1991-06-07 | 1992-12-10 | List Ag | Mischkneter |
-
1995
- 1995-01-18 CH CH00136/95A patent/CH688365A5/de not_active IP Right Cessation
-
1996
- 1996-01-18 EP EP96901295A patent/EP0804278B1/de not_active Expired - Lifetime
- 1996-01-18 DE DE59600991T patent/DE59600991D1/de not_active Expired - Lifetime
- 1996-01-18 DK DK96901295T patent/DK0804278T3/da active
- 1996-01-18 ES ES96901295T patent/ES2126380T3/es not_active Expired - Lifetime
- 1996-01-18 US US08/860,963 patent/US5934801A/en not_active Expired - Fee Related
- 1996-01-18 AU AU45373/96A patent/AU691078B2/en not_active Ceased
- 1996-01-18 WO PCT/EP1996/000189 patent/WO1996022156A1/de active IP Right Grant
- 1996-01-18 AT AT96901295T patent/ATE174528T1/de not_active IP Right Cessation
- 1996-01-18 CA CA002210639A patent/CA2210639A1/en not_active Abandoned
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB793457A (en) * | 1954-04-06 | 1958-04-16 | Loedige Wilhelm | Improvements relating to the mixing of materials |
DE2349106A1 (de) * | 1972-10-18 | 1974-05-02 | List Heinz | Mischkneter mit gegenschaufeln |
EP0220575A2 (de) * | 1985-10-25 | 1987-05-06 | Krauss-Maffei Aktiengesellschaft | Misch- und Knetvorrichtung |
DE3635877C1 (de) * | 1986-10-22 | 1987-10-15 | Heinz Nienhaus | Mischtrockner |
EP0289647A1 (de) * | 1987-05-06 | 1988-11-09 | List AG | Scheibenkneter |
EP0451747A1 (de) * | 1990-04-11 | 1991-10-16 | List AG | Kontinuierlich arbeitender Mischkneter |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010060320A1 (de) | 2010-06-30 | 2012-02-16 | List Holding Ag | Verfahren zur thermischen Trennung einer Lösung aus thermoplastischen polymer und Lösungsmittel |
US9079984B2 (en) | 2010-06-30 | 2015-07-14 | List Holding Ag | Process for thermal separation of a solution consisting of thermoplastic polymer and solvent |
US9480933B2 (en) | 2010-06-30 | 2016-11-01 | List Holding Ag | Process for thermal separation of a solution |
DE102014112579A1 (de) | 2013-08-30 | 2015-03-05 | List Holding Ag | Verfahren zum Herstellen einer chemischen Substanz |
Also Published As
Publication number | Publication date |
---|---|
CH688365A5 (de) | 1997-08-29 |
DK0804278T3 (da) | 1999-08-23 |
AU691078B2 (en) | 1998-05-07 |
AU4537396A (en) | 1996-08-07 |
CA2210639A1 (en) | 1996-07-25 |
EP0804278A1 (de) | 1997-11-05 |
DE59600991D1 (de) | 1999-01-28 |
EP0804278B1 (de) | 1998-12-16 |
US5934801A (en) | 1999-08-10 |
ES2126380T3 (es) | 1999-03-16 |
ATE174528T1 (de) | 1999-01-15 |
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