EP0424712B1 - Vorrichtung zum Dosieren und Mahlen - Google Patents

Vorrichtung zum Dosieren und Mahlen Download PDF

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Publication number
EP0424712B1
EP0424712B1 EP90119198A EP90119198A EP0424712B1 EP 0424712 B1 EP0424712 B1 EP 0424712B1 EP 90119198 A EP90119198 A EP 90119198A EP 90119198 A EP90119198 A EP 90119198A EP 0424712 B1 EP0424712 B1 EP 0424712B1
Authority
EP
European Patent Office
Prior art keywords
screw
beater
bars
axis
spiral
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
EP90119198A
Other languages
English (en)
French (fr)
Other versions
EP0424712A1 (de
Inventor
Marcel Buhler
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.)
Societe des Produits Nestle SA
Nestle SA
Original Assignee
Societe des Produits Nestle SA
Nestle SA
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 Societe des Produits Nestle SA, Nestle SA filed Critical Societe des Produits Nestle SA
Publication of EP0424712A1 publication Critical patent/EP0424712A1/de
Application granted granted Critical
Publication of EP0424712B1 publication Critical patent/EP0424712B1/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
    • B02C19/22—Crushing mills with screw-shaped crushing means
    • 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
    • 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
    • B02C13/13—Disintegrating by mills having rotary beater elements ; Hammer mills with horizontal rotor shaft and combined with sifting devices, e.g. for making powdered fuel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C9/00—Other milling methods or mills specially adapted for grain

Definitions

  • the present invention relates to an apparatus for metering and grinding friable material according to the preamble of claim 1.
  • Such an apparatus is known from GB-A-2169818.
  • the hammer mill which comprises a rotor formed by a rotary axis to which are connected radial arms which beat the material to be ground against a cylindrical sieve which surrounds at at least partially the rotor.
  • a mill comprising a rotor formed by a rotary axis having at each end a flange, bars parallel to the axis being fixed at the periphery of the flanges and the rotor rotating either always in the same direction or alternately in one direction and in the other inside a cylindrical screen.
  • the screw doser is known, for example with an archimedean screw or a spiral screw.
  • a dosing screw can be placed in a cylindrical casing or tube open at its downstream end, a feed hopper being provided at the upstream end of the tube.
  • US-A-4752036 describes a granulating apparatus comprising a rotor rotating above a sieve through which it forces the passage of a material to granulate, the rotor being formed in particular of beating bars comprised between two flanges and integral with their periphery, the bars being arranged parallel to the axis of rotation and equidistant, and the flanges each having a cylindrical surface on which is disposed a helical spiral intended to bring back towards the inside of the rotor particles capable of escaping through a space left free between said flanges and a fixed sealing housing which surrounds them.
  • the object of the present invention is to propose a device for dosing and grinding friable material which has a simplicity of construction comparable to that of a device of the screw metering type while having an efficiency comparable to that of a device of the hammer mill type, for example.
  • the apparatus according to the present invention intended for dosing and grinding a friable material, comprises a dosing screw for dosing the material with a beater, a beater formed of bars integral with the helical periphery of the downstream end of the screw, parallel to the axis of the screw and distributed along the vertices of a regular polygon centered on this axis, a cylindrical housing enveloping the screw, and a cylindrical screen extending the housing and at least partially enveloping the beater .
  • Such a device effectively combines surprisingly qualities that one could not expect until now from the series connection of at least two devices, one of which, the mill, was generally of a sophisticated construction.
  • the present apparatus of simple and robust construction, has proved to be particularly effective for the regular dosing and grinding of various friable materials, such as are encountered for example in the food industry, in particular starchy grains or cereals. , fragments of dehydrated mass, or flakes of dehydrated mash on a cylinder.
  • the dosing screw can be produced in various forms such as an archimedean screw, a screw with a solid cylindrical body having a helical projection on its periphery, or a hollow screw with a free helical spiral, in other words a spiral screw , for example.
  • the dosing screw is made in the form of a spiral screw, the spiral itself may have various sections, circular, square or other, depending on the nature of the material to be dosed.
  • the bars of the beater can have various sections, circular, square or other, depending on the nature of the material to be ground and the size of the mesh of the sieve, in particular.
  • the dosing screw is produced in the form of a spiral screw with a square section and the bars of the beater have a circular section of diameter less than or equal to the side of the square section of the spiral.
  • downstream ends of the bars end in the same plane perpendicular to the axis of the dosing screw and can be fixed in notches provided on the periphery of a circular flange, for example.
  • the device is provided with a feed hopper at the upstream end of the dosing screw and the latter is connected to a drive means such as an electric motor, for example.
  • the apparatus comprises a dosing screw 1, a beater 2 formed of bars 3 secured to the helical periphery of the downstream end of the screw 1, a cylindrical housing 5 which envelops the screw 1, and a cylindrical screen 6 which extends the cylindrical casing 5 and which envelops the beater 2.
  • the device is provided with a feed hopper 7 at the upstream end of the dosing screw 1.
  • the latter is connected to an electric motor 8 via a rotary axis 9 to which it is fixed.
  • the dosing screw 1 is produced in the form of a spiral screw with a square section.
  • the bars 3 of the beater 2 are parallel to the axis 4 of the dosing screw 1. They have a circular section of smaller diameter than the side of the square section of the spiral 1.
  • Their upstream ends 10 are housed and welded in cylindrical housings practiced in the very spiral.
  • the downstream ends 11 of the bars 3 end in the same plane and are fixed and welded in housings or notches formed in the periphery of a circular flange 12, coaxial and perpendicular to the axis 4 of the spiral screw 1.
  • the bars 3 are six in number and they are distributed according to the vertices of a hexagon.

Claims (3)

  1. Vorrichtung zum Dosieren und Mahlen von bröckeligem Material, mit einem Schläger (2), einer Dosierschnecke (1) zum Dosieren des zu zerschlagenden Materials (2) und einem zylindrischen Gehäuse (5), welches die Schnecke (1) umgibt, dadurch gekennzeichnet, daß der Schläger (2) durch Stäbe (3) gebildet ist, die mit dem wendelförmigen Umfang des stromabwärtigen Endes der Schnecke (1) verbunden sind, parallel zur Achse (4) der Schraube verlaufen und entsprechend den Ecken eines auf dieser Achse zentrierten regelmäßigen Polygons verteilt sind, und daß die Vorrichtung ein zylindrisches Sieb (6) in Verlängerung des Gehäuses (5) aufweist, welches den Schläger (2) zumindest teilweise umgibt.
  2. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß die Dosierschnecke (1) eine Schraube ist.
  3. Vorrichtung nach Anspruch 1, dadurch gekennzeichnet, daß sechs Stäbe (3) vorgesehen sind.
EP90119198A 1989-10-26 1990-10-05 Vorrichtung zum Dosieren und Mahlen Expired - Lifetime EP0424712B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3876/89A CH680835A5 (de) 1989-10-26 1989-10-26
CH3876/89 1989-10-26

Publications (2)

Publication Number Publication Date
EP0424712A1 EP0424712A1 (de) 1991-05-02
EP0424712B1 true EP0424712B1 (de) 1994-05-18

Family

ID=4265386

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90119198A Expired - Lifetime EP0424712B1 (de) 1989-10-26 1990-10-05 Vorrichtung zum Dosieren und Mahlen

Country Status (16)

Country Link
US (1) US5071078A (de)
EP (1) EP0424712B1 (de)
JP (1) JPH03151057A (de)
KR (1) KR910007582A (de)
CN (1) CN1023447C (de)
AT (1) ATE105736T1 (de)
AU (1) AU623328B2 (de)
CA (1) CA2027676A1 (de)
CH (1) CH680835A5 (de)
DE (1) DE69008995T2 (de)
DK (1) DK0424712T3 (de)
ES (1) ES2055269T3 (de)
NO (1) NO176999C (de)
NZ (1) NZ235744A (de)
PT (1) PT95678A (de)
ZA (1) ZA908190B (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012005167A1 (de) * 2012-03-16 2013-09-19 Mt-Energie Gmbh Vorrichtung und Verfahren zum Zerkleinern von nach der Zerkleinerung zu vergärendem Gut
US20130292502A1 (en) * 2012-05-02 2013-11-07 Guofeng Pan Paper shredder without wastebasket

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE471509A (de) *
DE89865C (de) * 1900-01-01
US1955914A (en) * 1928-06-04 1934-04-24 Krupp Fried Grusonwerk Ag Apparatus for producing cement and similar substances
US2717742A (en) * 1953-05-29 1955-09-13 Courtaulds Ltd Shredding machine with expansion chamber
GB1211759A (en) * 1968-06-05 1970-11-11 Financement Ind Commercial Et Improvements in or relating to crushing machines
US3834630A (en) * 1971-11-26 1974-09-10 Gunsons Sortex Ltd Recovery of packaged contents
US3771733A (en) * 1972-07-03 1973-11-13 Deere & Co Feed grinding apparatus
US3860182A (en) * 1973-11-05 1975-01-14 Cumberland Eng Co Auger feed granulator
JPS54119070A (en) * 1978-03-04 1979-09-14 Imamura Kk Grain milling apparatus
GB2054406B (en) * 1979-07-11 1983-02-02 Fisons Ltd Comminuting apparatus
SU1093319A1 (ru) * 1982-08-02 1984-05-23 Центральный Научно-Исследовательский Институт Механизации И Электрификации Сельского Хозяйства Нечерноземной Зоны Ссср Установка дл гранулировани кормов
US4752036A (en) * 1982-11-09 1988-06-21 Olin Research Center Granulator
GB2169818A (en) * 1985-01-19 1986-07-23 Birtley Eng Ltd Crushers

Also Published As

Publication number Publication date
ES2055269T3 (es) 1994-08-16
DK0424712T3 (da) 1994-09-05
NO904600D0 (no) 1990-10-24
NO176999C (no) 1995-07-05
NO904600L (no) 1991-04-29
EP0424712A1 (de) 1991-05-02
DE69008995T2 (de) 1994-09-08
NO176999B (no) 1995-03-27
ZA908190B (en) 1991-08-28
CA2027676A1 (en) 1991-04-27
CH680835A5 (de) 1992-11-30
ATE105736T1 (de) 1994-06-15
PT95678A (pt) 1992-06-30
KR910007582A (ko) 1991-05-30
AU623328B2 (en) 1992-05-07
NZ235744A (en) 1992-03-26
JPH03151057A (ja) 1991-06-27
US5071078A (en) 1991-12-10
DE69008995D1 (de) 1994-06-23
CN1023447C (zh) 1994-01-12
CN1051131A (zh) 1991-05-08
AU6398690A (en) 1991-05-02

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