EP0465607B1 - Prallauflöser - Google Patents

Prallauflöser Download PDF

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Publication number
EP0465607B1
EP0465607B1 EP90917239A EP90917239A EP0465607B1 EP 0465607 B1 EP0465607 B1 EP 0465607B1 EP 90917239 A EP90917239 A EP 90917239A EP 90917239 A EP90917239 A EP 90917239A EP 0465607 B1 EP0465607 B1 EP 0465607B1
Authority
EP
European Patent Office
Prior art keywords
impact
centrifuging
detacher according
wheel
ducts
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
Application number
EP90917239A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0465607A1 (de
Inventor
Franz Reichmuth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Buehler AG
Original Assignee
Buehler AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Buehler AG filed Critical Buehler AG
Priority to AT90917239T priority Critical patent/ATE103509T1/de
Publication of EP0465607A1 publication Critical patent/EP0465607A1/de
Application granted granted Critical
Publication of EP0465607B1 publication Critical patent/EP0465607B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B02C19/00—Other disintegrating devices or methods
    • 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
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
    • B02C13/1807—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate
    • B02C13/1835—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate by means of beater or impeller elements fixed in between an upper and lower rotor disc
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02B—PREPARING GRAIN FOR MILLING; REFINING GRANULAR FRUIT TO COMMERCIAL PRODUCTS BY WORKING THE SURFACE
    • B02B3/00—Hulling; Husking; Decorticating; Polishing; Removing the awns; Degerming
    • 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
    • B02C13/14—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices
    • B02C13/18—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor
    • B02C13/1807—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate
    • B02C13/1814—Disintegrating by mills having rotary beater elements ; Hammer mills with vertical rotor shaft, e.g. combined with sifting devices with beaters rigidly connected to the rotor the material to be crushed being thrown against an anvil or impact plate by means of beater or impeller elements fixed on top of a disc type rotor

Definitions

  • the invention relates to an impact resolver for grain, semolina or flour-like material with a rotating centrifugal wheel having at least two axially offset centrifugal channels, which is surrounded by an impact ring; also a concentric feed pipe and a material discharge duct.
  • impact machines are used in the mill or mill grinding. Depending on the application, these are referred to as impact resolvers, sterilizers and in the English-speaking world as Entoleters. In terms of process technology, it is partly identical, partly very similar processes. Depending on the application, the impact force or the impact speed that is exerted on the product is adjusted.
  • the individual parts of the goods have a very high strength, be it the grain as a whole, as well as the semolina or flour parts.
  • a grain of grain for example. was hollowed out by a grain beetle, fragile. Insects and insect eggs are very sensitive to impact. This The situation is exploited in the impact, for example by breaking hollow grains with the impact machine known as a sterilizer. Insects and insect eggs are killed.
  • the regrind from a roller mill is divided into the desired fractions in the following plan sifter.
  • the impact resolver is used diagrammatically between the roller mill and the plan sifter, the platelets formed during the grinding process are loosened and connected endosperm particles are loosened.
  • the object of the invention was now to improve the impact machine so that a real increase in throughput is possible, but this while maintaining the quality of work or an almost 100% effectiveness, be it to render harmless insects harmless or to remove the endosperm from the shell.
  • the guide apparatus is particularly preferably connected to the centrifugal wheel in a co-rotating manner.
  • the guide apparatus has a plurality of feed channels which are guided into the centrifugal channels in the form of annular disks.
  • the intake ducts opening into the centrifugal duct remote from the feed pipe have an installation that narrows the cross section on the outer circumference.
  • the installation is designed as a ring section with a tapered shape to the axis of rotation.
  • Optimal work for the impact occurs when the centrifugal wheel is designed as a double wheel and a common crop discharge channel is assigned to the twin wheel or the two impact surfaces, which ends in a tangential crop discharge channel.
  • the baffles are designed with respect to the double wheel as two truncated cones that open in the opposite direction.
  • the guide device has flat guide vanes both in terms of self-cleaning and for the impact effect.
  • centrifugal wheel with three or four axially offset centrifugal channels when continuing the inventive idea, the more distant the centrifugal channel seen from the intake, the greater the number of intake channels should open into these, respectively. the corresponding feed area must be adjusted.
  • each centrifugal channel is always assigned a separate impact ring.
  • the construction costs can be kept very low if an electric drive motor is flanged directly onto the housing of the impact resolver.
  • the centrifugal wheel then has the number of revolutions per minute as the electric motor, e.g. 3000 rpm.
  • the material discharge channel can be formed from two halves of approximately the same shape, which can be separated in a plane perpendicular to the axis of rotation of the shaft of the centrifugal wheel.
  • FIG. 1 The upper part of the figure shows an impact resolver 1 as a section in the axial direction.
  • An approximately 3000-speed electric motor 2 (lower half of the figure) is screwed with screws 3 and a connecting flange 4 to a lower, fixed housing part 5 of the impact resolver 1.
  • the connecting flange 4 is designed such that it receives the seals for sealing the impact resolver 1 to the outside.
  • An upper housing part 6 is connected to the lower housing part 5 in such a way that an impact ring 7 is firmly clamped in between. Concentric to the two housing parts 5 and 6, a feed tube 8 is placed on the upper housing part 6, through which the material to be treated is introduced into the impact resolver 1.
  • a centrifugal wheel 9 is arranged in the housing parts 5 and 6. In this case, this is placed on the shaft 11 of the electric motor 2 via a carrying bush 10 and a / locking screw 12.
  • the centrifugal wheel or centrifugal rotor 9 is formed by an inner turntable 13, an outer turntable 14 and a separating ring 15 arranged centrally between the two turntables 13, 14 by bolts 16 to form a double wheel or double rotor 17.
  • the baffle 30 has two types of flat baffles: short baffles 31, which direct the product air flow into the inner centrifugal channel (closer to feed tube 8) 18, and long baffles 32, which direct product air flow into the outer centrifugal channel (closer to feed tube 8) 19 steer.
  • the short guide plate 31 is provided with vertical hatching in FIG. 3 and the long guide plate 32 with horizontal hatching.
  • the baffle 30 can be integrally e.g. in mold, and the centrifugal channels 18 and 19 made of sheet steel and both parts are connected to one unit.
  • the centrifugal channel 19 is completely self-cleaning if this resp. an installation 33 in the form of a ring section is arranged in the feed area of the centrifugal channel 19 (hatched with circular rings in FIG. 4).
  • a ratio of 2: 4 in relation to the number of inner feed channels 34 to the outer feed channels 35 has proven successful.
  • the good-air mixture to be processed enters the feed channels via the feed pipe 8 34 resp. 35 of the nozzle 30 and is set in rotation. In the feed channels 34 respectively. 35, the mixture is accelerated and undergoes a first impact on the bolt 16.
  • the water turbine-like, widening in the circumferential direction Gutabrioskanal 22 supports a uniform action on the baffle 20 or 21, and supports a reunification of air and goods, which can be transported as a mixture after the goods discharge channel 22 with a pneumatic conveyor.
  • FIG. 5 the material to be processed is fed vertically from below into the impact resolver 1 and guided away horizontally
  • FIG. 6 the product feed is vertical from above.
  • the raw material in FIGS. 7 and 8 enters the impact resolver 1 horizontally.
  • the product transfer is vertically downwards in FIG. 7 and vertically upwards in FIG. 8.
  • Fig. 9 shows a further embodiment with a triple centrifugal rotor 9, each centrifugal channel 51, respectively. 52 resp. 53 each have their own baffle 54, respectively. 55 or 56.
  • the product flow is directed downward from the two baffles 55 and 56 and upward from the baffle surface 54. It is also important here that the guide apparatus 30 is designed according to the same rules as in FIGS. 1 to 4 and that a uniform product distribution is ensured for all channels.
  • the centrifugal rotor 70 is designed as a 4-way rotor, analogous to FIGS. 1 to 4, with product steering in the two opposite directions by means of 4 baffle surfaces.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Crushing And Pulverization Processes (AREA)
  • Centrifugal Separators (AREA)
  • Medicinal Preparation (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Catching Or Destruction (AREA)
EP90917239A 1990-01-31 1990-12-04 Prallauflöser Expired - Lifetime EP0465607B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90917239T ATE103509T1 (de) 1990-01-31 1990-12-04 Prallaufloeser.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH31190 1990-01-31
CH311/90 1990-01-31

Publications (2)

Publication Number Publication Date
EP0465607A1 EP0465607A1 (de) 1992-01-15
EP0465607B1 true EP0465607B1 (de) 1994-03-30

Family

ID=4184108

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90917239A Expired - Lifetime EP0465607B1 (de) 1990-01-31 1990-12-04 Prallauflöser

Country Status (12)

Country Link
EP (1) EP0465607B1 (cs)
JP (1) JP2655751B2 (cs)
KR (1) KR940004229B1 (cs)
BR (1) BR9007242A (cs)
CZ (1) CZ279161B6 (cs)
DE (1) DE59005210D1 (cs)
ES (1) ES2052280T3 (cs)
HU (1) HU209075B (cs)
RU (1) RU1837969C (cs)
SK (1) SK278620B6 (cs)
TR (1) TR26845A (cs)
WO (1) WO1991011260A1 (cs)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1000117C2 (nl) * 1995-04-11 1996-10-14 Johannes Petrus Andreas Joseph Rotorbladconstructie voor inslagbreker.
DE10154462A1 (de) * 2001-11-08 2003-05-22 Buehler Ag Verfahren zum Isolieren von Aleuronteilchen
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
RU2407590C1 (ru) * 2009-07-13 2010-12-27 Валерий Львович Злочевский Способ размола зерновых и зернистых материалов
WO2015022251A1 (de) * 2013-08-13 2015-02-19 Bühler AG Querstrom-prallvorrichtung
CN210787453U (zh) * 2019-08-28 2020-06-19 鄂州市兴方磨具有限公司 一种扇形组合式碾米砂辊

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE168387C1 (cs) *
DE521349C (de) * 1931-03-20 Alpine Akt Ges Eisengiesserei Schlagstiftmuehle mit zwei zwischen zwei umlaufenden Schlagscheiben angeordneten Mahlscheiben
DE591968C (de) * 1930-07-25 1934-01-30 Josef Otto Schlagstiftmuehle
GB539883A (en) * 1940-09-26 1941-09-26 Franklin Seltzer Smith Process and apparatus for destroying insect infestation in bulk products
DE923169C (de) * 1950-10-19 1955-02-03 Kohlenscheidungs Ges M B H Schlagradmuehle
US2928616A (en) * 1955-09-12 1960-03-15 Monda R Smith Centrifugal impact milling machine
DE1026159B (de) * 1956-03-31 1958-03-13 Kohlenscheidungs Ges Mit Besch Laeufer fuer Schleudermuehlen
GB1013610A (en) * 1964-11-10 1965-12-15 Bath Iron Works Corp An improved bowl for a centrifugal pulverizer
DE1253562B (de) * 1965-12-08 1967-11-02 Miag Muehlenbau Prall- und Schaelmuehle mit mindestens zwei um eine lotrechte Achse umlaufenden Schleuderraedern
CH491674A (de) * 1968-01-12 1970-06-15 Simon Ltd Henry Stiftmühle
DE1814751A1 (de) * 1968-12-14 1970-06-25 Miag Muehlenbau & Ind Gmbh Prall- und Schaelmuehle

Also Published As

Publication number Publication date
WO1991011260A1 (de) 1991-08-08
JP2655751B2 (ja) 1997-09-24
HU913004D0 (en) 1992-02-28
KR920700771A (ko) 1992-08-10
BR9007242A (pt) 1992-03-17
DE59005210D1 (de) 1994-05-05
CS9100180A2 (en) 1991-09-15
EP0465607A1 (de) 1992-01-15
HU209075B (en) 1994-03-28
RU1837969C (ru) 1993-08-30
HUT61223A (en) 1992-12-28
TR26845A (tr) 1994-08-19
SK278620B6 (en) 1997-11-05
ES2052280T3 (es) 1994-07-01
KR940004229B1 (ko) 1994-05-19
CZ279161B6 (cs) 1995-01-18

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