EP0964748B1 - Verfahren und vorrichtung zur zerkleinerung von schüttgütern - Google Patents
Verfahren und vorrichtung zur zerkleinerung von schüttgütern Download PDFInfo
- Publication number
- EP0964748B1 EP0964748B1 EP98902931A EP98902931A EP0964748B1 EP 0964748 B1 EP0964748 B1 EP 0964748B1 EP 98902931 A EP98902931 A EP 98902931A EP 98902931 A EP98902931 A EP 98902931A EP 0964748 B1 EP0964748 B1 EP 0964748B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sieve
- deflectors
- rotor
- product
- comminuted
- 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.)
- Expired - Lifetime
Links
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
- B02C13/284—Built-in screens
Definitions
- the invention relates to a method and an apparatus for comminuting Bulk goods, especially cereals, which are used in the compound feed industry and in used in the milling industry.
- a large number of grinding devices are known, in which in a housing a rotor with striking organs, the whole circumference or only partially is surrounded with a sieve is arranged.
- these devices that will Material fed into a work zone, i.e. a zone between the striking organs and the inner surface of a chamber (sieve, baffle plate) which encloses the rotor and crushed there. Since the striking organs are located directly in the layer of the moving crushed material, the grinding is dominated by the grinding principle, which ultimately results in the over-crushing of the particles, in too high Energy consumption and intensive wear of the striking organs and the rotor.
- a device of the type mentioned above is known from DE 1 250 721. This discloses a beater mill, in which revolving impact elements with in one The strainer basket interacts between the friction plates or baffle jaws. A particularly high energy consumption arises when the embodiment is used 4 with a two-armed cross beater and three rubbing jaws.
- a hammer mill in which by special Conical design of the rotor end the flow of the in the grinding chamber material that has reached the mill is affected. This can prevent excessive wear of the rotor can be reduced.
- the US-PS 2225095 discloses a sieve for hammer mills with radial product feed.
- the sieve surrounding the rotor has internally distributed around the circumference, triangular deflection elements. These are fixed.
- a similar arrangement shows US-PS 2465056, with additional elements also on the Sieve are distributed, which have approximately the thickness of the sieve mantle and are perforated analogously to the sieve.
- the aim of the present invention is to reduce energy consumption in grinding, in increasing the uniformity of the grain of the finished product and in increasing the lifespan of the work organs and the sieve.
- the device according to the invention has a housing with inlet and outlet connections, a racket rotor and a sieve with several deflecting elements, which the Surrounded by beater rotor.
- the baffles on the periphery of the screen are the same or varying distance from the rackets.
- the deflection elements have smooth surface with an inclination of 20 to 80 degrees to the radius and form a distance from the rotor whose minimum width is not greater than the diameter of the grains to be processed.
- the deflection elements are rotatable in relation to the radius executed, i.e. rotatable about a pivot point on the screen surface in the direction of this Screen surface or in the opposite direction.
- the deflection elements are arranged radially and form a triangular prism, the lateral one, in a manner known per se Edges are directed towards the sieve.
- the deflection elements can be adjusted along the screen circumference.
- the device shown above is ground or ground in one Working zone between the deflection elements and the striking elements of the Rotor and goes beyond the so-called impact principle.
- the coarse particles with high kinetic energy fly directly to the next one Percussion organ, whereas the small ponds with less kinetic energy, below Influence of the air flow generated by the rotor fly around it and its Continue motion along the perforated chamber surface and the chamber leave. This separates the fine fraction without the common one Impact of the next impact organ of the rotor takes place. So that will Product flow after its delivery into the grinding chamber a pulsating Character added with multiple changes of supply and discharge to the Blow organs.
- the impact mill in Figure 1 consists of a housing 1 with an inlet nozzle 2 and an outlet nozzle 3. Inside the housing 1 there is a rotor 4 with the striking elements 5.
- the rotor is surrounded by a sieve 6, on the Surface 6a a plurality of deflection elements 7.9, preferably with a triangular Cross section, are arranged.
- the screen 6 is on its circumference in screen segments divided by the deflection elements 7, 9, which go from the sieve to the rotor inside are directed and a smooth work surface inclined in the direction of rotation of the rotor exhibit.
- the angle of inclination in relation to the radius is in the range 20 to 80 degrees and the distance h between the ends of the striking elements 5 and the deflection elements 7.9 not less than the grain diameter of the starting product is.
- FIG 3 shows the screen 6, which is in segments A and B with different perforations is alternately divided, the triangular prisms being the segments cover the same perforation.
- FIG. 4 shows an adjustable arrangement of the deflection elements 7 and FIG. 5 shows the directions of rotation of the deflection element 7 to and from the screen 6 by one at the Screen surface 6a arranged pivot point 80.
- the direction of rotation of the rotor 4th can be done both clockwise and counterclockwise.
- the deflection elements 7, 9 are in a ring 10 along the circumference of the sieve 6 movable, cf. in particular Fig.2a arranged.
- the starting product (uncrushed grain) is through the inlet nozzle 2 in Figure 1 fed from two sides to the rotor 4 and comes under the influence of Centrifugal forces Z on the curved rotor track on the screen surface 6a or to a sieve section S (see Fig. 2), which by two successive Deflection elements 7 and 9 is limited.
- the Starting product within the rotor 4 of the partial crushing under the Exposure to the impact organs 5 is exposed. While moving along of the screen 6 in Fig.4, the product comes on the smooth inclined surface of the Deflection element 7, changes its direction of movement and thus comes under one single blow of the impactor 5 of the rotor 4.
- the fine particles make a larger path along the screen surface 6a until the next movement with the deflection element 7.9, i.e. the probability increases that they pass the perforation of the sieve. simultaneously the coarser particles have only a short contact with the sieve surface 6a. which helps reduce its wear.
- Each subsequent product conveying for shredding with the help of the deflection elements 7.9 differs from the previous one in that the product quantity is constantly decreasing because the particles of required size are continuously passing through the Perforation of the sieve 6 can be removed.
- the crushing principle of the impact mill is based on the crushing without direct interaction of rotor 4 and sieve 5, which is in Reduction of energy consumption and an increase in the lifespan of the Striking organs.
- the process has the best efficiency when the product feed to the rotor takes place at a certain angle. This angle must be in the area with the radius from 20 to 80 degrees.
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Disintegrating Or Milling (AREA)
- Control And Other Processes For Unpacking Of Materials (AREA)
- Crushing And Grinding (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19709345 | 1997-03-07 | ||
DE19709345A DE19709345A1 (de) | 1997-03-07 | 1997-03-07 | Verfahren und Vorrichtung zur Zerkleinerung von Schüttgütern |
PCT/CH1998/000080 WO1998040163A1 (de) | 1997-03-07 | 1998-02-26 | Verfahren und vorrichtung zur zerkleinerung von schüttgütern |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0964748A1 EP0964748A1 (de) | 1999-12-22 |
EP0964748B1 true EP0964748B1 (de) | 2002-09-18 |
Family
ID=7822549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98902931A Expired - Lifetime EP0964748B1 (de) | 1997-03-07 | 1998-02-26 | Verfahren und vorrichtung zur zerkleinerung von schüttgütern |
Country Status (13)
Country | Link |
---|---|
EP (1) | EP0964748B1 (ru) |
KR (1) | KR100501712B1 (ru) |
CN (1) | CN1163304C (ru) |
AT (1) | ATE224234T1 (ru) |
AU (1) | AU5980198A (ru) |
DE (2) | DE19709345A1 (ru) |
DK (1) | DK0964748T3 (ru) |
ES (1) | ES2181161T3 (ru) |
NO (1) | NO994320L (ru) |
RU (1) | RU2224595C2 (ru) |
TR (1) | TR199901748T2 (ru) |
UA (1) | UA66782C2 (ru) |
WO (1) | WO1998040163A1 (ru) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4289013B2 (ja) * | 2003-05-13 | 2009-07-01 | 株式会社サタケ | 穀物の衝撃式粉砕装置 |
DE202009011011U1 (de) * | 2009-09-16 | 2011-02-10 | Th. Buschhoff Gmbh & Co. | Hammermühle |
EA026359B1 (ru) * | 2012-12-04 | 2017-03-31 | Республиканское Унитарное Предприятие "Научно-Практический Центр Национальной Академии Наук Беларуси По Механизации Сельского Хозяйства" (Руп "Нпц Нан Беларуси По Механизации Сельского Хозяйства") | Дробилка зерна вертикальная |
RU2568754C2 (ru) * | 2013-12-04 | 2015-11-20 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Оренбургский государственный аграрный университет" | Дробилка зерна |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1250721B (ru) * | 1967-09-21 | |||
US2225095A (en) * | 1939-04-27 | 1940-12-17 | Claud Mcclellan | Screen for hammer mills |
DE889108C (de) * | 1939-09-05 | 1953-09-07 | Josef Klagsbrunn | Schleudermuehle |
DE718381C (de) * | 1941-01-14 | 1942-03-10 | L & C Steinmueller | Schlaegermuehle |
US2465056A (en) * | 1945-03-22 | 1949-03-22 | Auraldo W Bond | Mill screen with auxiliary perforate baffles on operating face |
US2488714A (en) * | 1945-10-01 | 1949-11-22 | Grayce A Delp | Adjustable screen for hammer mills |
US2543599A (en) * | 1946-04-06 | 1951-02-27 | Rietz Mfg Co | Screen structure for hammer mills |
FR2598100B1 (fr) * | 1986-05-02 | 1988-07-29 | Copex | Dispositif d'ejection des matieres imbroyables et de variation du rendement d'un broyeur a marteaux pour le traitement des ferrailles |
US4907750A (en) * | 1988-03-09 | 1990-03-13 | Prater Industries, Inc. | Hammermill |
FR2715330B1 (fr) * | 1994-01-25 | 1996-03-29 | Andre Bonnet | Broyeur à aubes multiples avec chaque élément fixe de broyage suivi individuellement par une classification par air. |
-
1997
- 1997-03-07 DE DE19709345A patent/DE19709345A1/de not_active Withdrawn
-
1998
- 1998-02-26 CN CNB988021536A patent/CN1163304C/zh not_active Expired - Fee Related
- 1998-02-26 EP EP98902931A patent/EP0964748B1/de not_active Expired - Lifetime
- 1998-02-26 DK DK98902931T patent/DK0964748T3/da active
- 1998-02-26 WO PCT/CH1998/000080 patent/WO1998040163A1/de active IP Right Grant
- 1998-02-26 UA UA99084769A patent/UA66782C2/xx unknown
- 1998-02-26 AT AT98902931T patent/ATE224234T1/de not_active IP Right Cessation
- 1998-02-26 DE DE59805608T patent/DE59805608D1/de not_active Expired - Fee Related
- 1998-02-26 TR TR1999/01748T patent/TR199901748T2/xx unknown
- 1998-02-26 RU RU99121196/12A patent/RU2224595C2/ru not_active IP Right Cessation
- 1998-02-26 ES ES98902931T patent/ES2181161T3/es not_active Expired - Lifetime
- 1998-02-26 AU AU59801/98A patent/AU5980198A/en not_active Abandoned
- 1998-02-26 KR KR10-1999-7006598A patent/KR100501712B1/ko not_active IP Right Cessation
-
1999
- 1999-09-06 NO NO19994320A patent/NO994320L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
TR199901748T2 (en) | 2000-03-21 |
ES2181161T3 (es) | 2003-02-16 |
AU5980198A (en) | 1998-09-29 |
KR100501712B1 (ko) | 2005-07-18 |
NO994320L (no) | 1999-11-03 |
KR20000070365A (ko) | 2000-11-25 |
NO994320D0 (no) | 1999-09-06 |
DE59805608D1 (de) | 2002-10-24 |
DK0964748T3 (da) | 2003-01-27 |
ATE224234T1 (de) | 2002-10-15 |
UA66782C2 (en) | 2004-06-15 |
WO1998040163A1 (de) | 1998-09-17 |
EP0964748A1 (de) | 1999-12-22 |
CN1163304C (zh) | 2004-08-25 |
CN1246080A (zh) | 2000-03-01 |
DE19709345A1 (de) | 1998-09-10 |
RU2224595C2 (ru) | 2004-02-27 |
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