EP1010465A1 - Element einer trommelförmigen Zerkleinerungsbahn - Google Patents
Element einer trommelförmigen Zerkleinerungsbahn Download PDFInfo
- Publication number
- EP1010465A1 EP1010465A1 EP99122282A EP99122282A EP1010465A1 EP 1010465 A1 EP1010465 A1 EP 1010465A1 EP 99122282 A EP99122282 A EP 99122282A EP 99122282 A EP99122282 A EP 99122282A EP 1010465 A1 EP1010465 A1 EP 1010465A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- profile strips
- element according
- profiled
- sections
- profiling
- 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
- 238000007373 indentation Methods 0.000 abstract description 4
- 238000012545 processing Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/282—Shape or inner surface of mill-housings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/10—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft and axial flow
Definitions
- the invention relates to an element of a drum-shaped shredding path according to the preamble of claim 1.
- Generic elements are particularly in connection with grinding tracks known. In their circular arrangement these elements form the Surface of the grinding track on which the coarse feed material is converted into fine material becomes. The desired degree of fineness of the fine material is determined by the later one Intended use of the fines.
- the degree of fineness is in addition to various factors, such as. B. the distance of the Beater wheel from the grinding surface or the cross-sectional formation of the Profiling mainly of the duration of the coarse goods in the area of Grinding path dependent.
- the length of stay includes the period from first encounter of the coarse material on the grinding track until it leaves the Grinding track.
- the dwell time can be influenced by certain measures on the stick wheel are, for example, as detailed in DE 198 35 144 A1. She can also by the type of arrangement of the profiling on the Grinding path surface can be controlled. For this purpose it is known that Arrange profile strips in a V-shape on the grinding track surface. It depends on the profile strips open or close in the circumferential direction of the beater wheel, there are short or long dwell times of the feed material on the grinding track.
- a part of the coarse material traverses the grinding path profiles in a straight line in a short time, so that coarse-grained fine material is created.
- Another part meets at Walk through the grinding surface to the front of the profile strips below profiled sections, is repeatedly stopped and redirected so that due to the long residence times resulting from this, fines are reduced Diameter results.
- the resulting large fluctuation range in size and shape when The resulting fine goods reduce their quality and can if necessary subsequent screening of the fines is necessary.
- the invention has for its object by the art the profiling of the elements forming the shredding path To control the fineness of the fine material and at the same time largely to produce pure, fine goods.
- the basic idea of the invention is the individual profiled sections Crushing path to achieve a specific result To bring together and coordinate with each other.
- the aim is flow conditions as uniform as possible with regard to the material flow to create the grinding track, d. H. the path of the coarse material within the grinding track is not left to chance, but through constructive measures predetermined.
- the length is the circumference of the Shredding path forming side of the elements 1/10 to 1/30 of the circumference of the Shredding track.
- the number of one remains as large as possible complete shredding path forming elements as low as possible, so that the Maintenance costs due to assembly and disassembly of the individual elements is kept to a minimum. From a certain size of the elements, they must be adapted with its cross section to the curvature of the shredding path. Otherwise an effective shredding of the coarse material would be due to the No more deviations from the rotation path of the racket wheel guaranteed.
- the Length of the side of the profiled that forms the circumference of the shredding path Sections from 20 to 30 mm. With smaller dimensions of the sections increased their number accordingly. If the arrangement is offset profiling subsequent sections results in a more frequent stopping and Redirecting the flow of material than with large elements, so that these Way significantly increases the length of stay of the coarse material. At the same time this also increases the number of transverse to the direction of rotation Edges that delimit the sections. These edges do a lot of the work Shredding work, so that with increasing the number of edges also Overall effectiveness of the shredding path is increased.
- the arrangement of the profile strips at an angle to the in offers further advantages
- Direction of rotation arranged axis of symmetry of the elements from 25 to 45 °. Due to a more acute impact angle of the coarse material on the profile strips, the Impact energy and thus the wear of the elements is reduced. Also result due to the greater length of the profile strips greater dwell times of Coarse material within the grinding path, which results in a higher degree of fineness.
- Another advantageous embodiment provides for the width of the profile strips training larger than that arranged between the profile strips Indentations. With a staggered arrangement of the profiling ensures that the entire proportion of coarse material between two profiled Sections stopped and redirected.
- Fig. 1 shows an element 1 of a grinding track of a double stream mill.
- the element 1 has a rectangular shape and is symmetrical to Axis of symmetry 2 formed.
- the long sides 3 of the element 1 form the Butt joints, at each of which a plurality of identical elements 1 to one drum-shaped grinding track are composed.
- the short pages 4 of the Elements 1 form the edge-side over the entire circumference of the grinding track Limitation.
- the element 1 is curved in cross section (Fig. 2), the curvature of the element 1 of the curvature of the grinding track corresponds.
- the element 1, which is intended for attachment to a support ring Substructure is determined, as shown in FIGS. 2 and 3, to this Purpose on its underside 5 rectangular contact patches 6, which over the Bottom 5 are slightly raised.
- holes 7 are made in the element 1 through which the fastening of the elements on a support ring countersunk screws hand over.
- the surface 8 of the element 1 forms the active side of the grinding track.
- the Surface 8 is made up of five sections 9 with profiling and four in between arranged sections 10 formed without profiling. Sections 9 and 10 extend parallel to the long sides 3 and transversely to the axis of symmetry 2 over the whole element 1.
- the profiled sections 9 have a A large number of rectilinear and parallel profiled strips 11 on the are rectangular in cross section and opposite Symmetry axis 2 have an inclination of 30 °. Only along the short Pages 4 deviate from this arrangement and are parallel to the short side 4 arranged. You can see between the profile strips 11 rectangular depressions 12, in which the coarse material along the flanks 13 is transported. The cross-sectional width of the depressions 12 is somewhat smaller than the cross-sectional width of the profile strips 11.
- the profiled sections 9 are separated by non-profiled section 10.
- the Non-profiled sections 10 consist essentially of a groove, the Bottom 14 is deeper than the depressions 12, so that there is sufficient volume is created to the sufficiently refined material with the help of an air stream discharge laterally.
- the non-profiled sections 10 have both of them End a upturn 15 which is flush with the short side 4 and which connects to the floor 14 via a slope 16.
- the height of the backsplash 15 lies below the surface of the profile strips 11, so that on the one hand little shredded material is held back on the slope 16, on the other hand the Fine goods can already be withdrawn over the upstand 15.
- the upstand 15 stands over the end face of element 1 above.
- the non-profiled sections 10 'assigned to the long sides 3 only have half the width of a non-profiled section 10, but are otherwise equally trained.
- When assembling two elements 1 is created in Butt area not corresponding to the non-profiled section 10 profiled section.
- FIG. 4 shows a further embodiment of an inventive Elements 1 '.
- the structure of the element 1 ' corresponds essentially to that of Elements 1. Only the arrangement of the corrugated strips 11 'forming the profiling and intermediate recesses 12 'is different. To the To slow down the material flow and thus the dwell time of the material to be shredded To increase material within the grinding track is shown in FIG. 4 Profileing achieved a numerous stopping and redirecting of the material flow.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
- Crushing And Grinding (AREA)
- Polishing Bodies And Polishing Tools (AREA)
Abstract
Description
- Fig. 1
- eine Draufsicht auf ein erfindungsgemäßes Element,
- Fig. 2
- einen Querschnitt durch das in Fig. 1 dargestellte Element entlang der dort dargestellten Linie II-II,
- Fig. 3
- einen Längsschnitt durch das in Fig. 1 dargestellte Element entlang der dort dargestellten Linie III-III und
- Fig. 4
- eine Draufsicht auf weiteres erfindungsgemäßes Element.
Claims (12)
- Element einer trommelförmigen Zerkleinerungsbahn, beispielsweise zur Verwendung in einer gasdurchströmten Zerkleinerungsmaschine mit einem rotierenden Schlagradsystem, mit in Rotationsrichtung wechselweiser Anordnung von Abschnitten (9, 10) mit und ohne Profilierung, wobei die Profilierung aus nebeneinander angeordneten Profilleisten (11; 11') mit dazwischenliegenden Vertiefungen (12; 12') besteht und die Profilleisten (11; 11') gegenüber der in Rotationsrichtung angeordneten Symmetrieachse (2) eines Elements (1; 1') um den Winkel α geneigt sind, dadurch gekennzeichnet, dass die Profilleisten (11; 11') eines profilierten Abschnitts (9) entweder mit den Profilleisten (11; 11') oder den Vertiefungen (12; 12') zwischen den Profilleisten (11; 11') eines nachfolgenden profilierten Abschnitts (9) fluchten.
- Element nach Anspruch 1, dadurch gekennzeichnet, dass die Länge der den Umfang der Zerkleinerungsbahn bildenden Seiten (4) der Elemente (1) 1/10 bis 1/30 des Umfangs der Zerkleinerungsbahn beträgt.
- Element nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass das Element (1) eine der Zerkleinerungsbahn entsprechende Krümmung aufweist.
- Element nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass die Länge der den Umfang der Zerkleinerungsbahn bildenden Seiten (4) der profilierten Abschnitte (9) 20 bis 30 mm beträgt, vorzugsweise 25 mm.
- Element nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Länge der den Umfang der Zerkleinerungsbahn bildenden Seiten (4) der nicht profilierten Abschnitte (10) 7,5 bis 17,5 mm beträgt, vorzugsweise 12,5 mm.
- Element nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das Längenverhältnis der den Umfang bildenden Seiten (4) von Element (1) und profiliertem Abschnitt (9) 1/5 bis 1/25 beträgt, vorzugsweise 1/10 bis 1/15.
- Element nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass drei bis fünf profilierte Abschnitte (9) auf einem Element (1) angeordnet sind.
- Element nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass der Winkel α zwischen 25° und 45° liegt, vorzugsweise 30° beträgt.
- Element nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Profilleisten (11; 11') eine größere Querschnittsbreite aufweisen als die zwischen den Profilleisten (11; 11') angeordneten Vertiefungen (12; 12').
- Element nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Querschnittsbreite der Profilleisten (11; 11') zwischen 7,5 bis 12,5 mm liegt, vorzugsweise 10 mm beträgt.
- Element nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass die Breite der zwischen den Profilleisten (11; 11') angeordneten Vertiefungen (12; 12') zwischen 5 und 10,5 mm liegt, vorzugsweise 8 mm beträgt.
- Element nach einem der Ansprüche 1 bis 11, dadurch gekennzeichnet, dass das Element (1) in einer Mahlbahn angeordnet ist.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29822550U | 1998-12-18 | ||
DE29822550U DE29822550U1 (de) | 1998-12-18 | 1998-12-18 | Element einer trommelförmigen Zerkleinerungsbahn |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1010465A1 true EP1010465A1 (de) | 2000-06-21 |
EP1010465B1 EP1010465B1 (de) | 2004-10-13 |
Family
ID=8066820
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP99122282A Expired - Lifetime EP1010465B1 (de) | 1998-12-18 | 1999-11-09 | Element einer trommelförmigen Zerkleinerungsbahn |
Country Status (4)
Country | Link |
---|---|
US (1) | US6360976B1 (de) |
EP (1) | EP1010465B1 (de) |
CA (1) | CA2292165C (de) |
DE (1) | DE29822550U1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2591859A1 (de) * | 2011-11-10 | 2013-05-15 | Andritz Fiedler Gmbh | Element einer trommelförmigen Zerkleinerungsspur, und trommelförmige Zerkleinerungsspur |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE29822550U1 (de) * | 1998-12-18 | 1999-02-18 | Pallmann Maschinenfabrik GmbH & Co KG, 66482 Zweibrücken | Element einer trommelförmigen Zerkleinerungsbahn |
US7721400B2 (en) | 2002-06-14 | 2010-05-25 | Ellis Enz Splits, Llc | Spiked plate |
CA2632017C (en) * | 2005-12-09 | 2014-02-25 | Swissrtec Gmbh | Stator for an impact crusher |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE715098C (de) * | 1940-05-22 | 1941-12-13 | Woehrmann & Sohn Milchwerke | Schleudermuehle |
FR2347979A1 (fr) * | 1976-04-15 | 1977-11-10 | Pallmann Kg Maschf | Barreau profile pour chemin de broyage d'une machine a broyer ou fragmenter |
GB2092473A (en) * | 1980-01-09 | 1982-08-18 | Tatabanyai Szenbanyak | Apparatus for the recovery of protein from green vegetable matter |
EP0164489A2 (de) * | 1984-01-31 | 1985-12-18 | Franz Prof. Dr.-Ing. Wieneke | Vorrichtung zum Zerkleinern von körnigen und/oder faserigem Gut |
DE29822550U1 (de) * | 1998-12-18 | 1999-02-18 | Pallmann Maschinenfabrik GmbH & Co KG, 66482 Zweibrücken | Element einer trommelförmigen Zerkleinerungsbahn |
DE19835144A1 (de) | 1998-08-04 | 2000-02-17 | Pallmann Kg Maschf | Gasdurchströmte Zerkleinerungsmaschine mit rotierendem Schlagradsystem |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3966126A (en) * | 1975-02-10 | 1976-06-29 | Kimberly-Clark Corporation | Classifying hammermill system and method of operation |
DE3332712A1 (de) | 1983-07-07 | 1985-03-28 | Franz Prof. Dr.-Ing. 3406 Bovenden Wieneke | Zerkleinerungseinrichtung fuer koerniges und faseriges gut sowie halmgut |
DE3444504A1 (de) | 1984-12-06 | 1986-06-12 | Franz Prof. Dr.-Ing. 3406 Bovenden Wieneke | Zerkleinerungseinrichtung mit gestuftem aufbereitungspfad |
-
1998
- 1998-12-18 DE DE29822550U patent/DE29822550U1/de not_active Expired - Lifetime
-
1999
- 1999-11-09 EP EP99122282A patent/EP1010465B1/de not_active Expired - Lifetime
- 1999-12-15 CA CA002292165A patent/CA2292165C/en not_active Expired - Fee Related
- 1999-12-15 US US09/461,541 patent/US6360976B1/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE715098C (de) * | 1940-05-22 | 1941-12-13 | Woehrmann & Sohn Milchwerke | Schleudermuehle |
FR2347979A1 (fr) * | 1976-04-15 | 1977-11-10 | Pallmann Kg Maschf | Barreau profile pour chemin de broyage d'une machine a broyer ou fragmenter |
GB2092473A (en) * | 1980-01-09 | 1982-08-18 | Tatabanyai Szenbanyak | Apparatus for the recovery of protein from green vegetable matter |
EP0164489A2 (de) * | 1984-01-31 | 1985-12-18 | Franz Prof. Dr.-Ing. Wieneke | Vorrichtung zum Zerkleinern von körnigen und/oder faserigem Gut |
DE19835144A1 (de) | 1998-08-04 | 2000-02-17 | Pallmann Kg Maschf | Gasdurchströmte Zerkleinerungsmaschine mit rotierendem Schlagradsystem |
DE29822550U1 (de) * | 1998-12-18 | 1999-02-18 | Pallmann Maschinenfabrik GmbH & Co KG, 66482 Zweibrücken | Element einer trommelförmigen Zerkleinerungsbahn |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2591859A1 (de) * | 2011-11-10 | 2013-05-15 | Andritz Fiedler Gmbh | Element einer trommelförmigen Zerkleinerungsspur, und trommelförmige Zerkleinerungsspur |
Also Published As
Publication number | Publication date |
---|---|
CA2292165C (en) | 2004-02-10 |
EP1010465B1 (de) | 2004-10-13 |
CA2292165A1 (en) | 2000-06-18 |
DE29822550U1 (de) | 1999-02-18 |
US6360976B1 (en) | 2002-03-26 |
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