EP1577014B1 - Procédé et dispositif pour la fabrication de farine - Google Patents

Procédé et dispositif pour la fabrication de farine Download PDF

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Publication number
EP1577014B1
EP1577014B1 EP04405573A EP04405573A EP1577014B1 EP 1577014 B1 EP1577014 B1 EP 1577014B1 EP 04405573 A EP04405573 A EP 04405573A EP 04405573 A EP04405573 A EP 04405573A EP 1577014 B1 EP1577014 B1 EP 1577014B1
Authority
EP
European Patent Office
Prior art keywords
flour
mill
impact
air
impact mill
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
EP04405573A
Other languages
German (de)
English (en)
Other versions
EP1577014A1 (fr
Inventor
Albert Lehmann
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.)
Alb Lehmann Lindmuehle AG
Original Assignee
Alb Lehmann Lindmuehle 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 Alb Lehmann Lindmuehle AG filed Critical Alb Lehmann Lindmuehle AG
Publication of EP1577014A1 publication Critical patent/EP1577014A1/fr
Application granted granted Critical
Publication of EP1577014B1 publication Critical patent/EP1577014B1/fr
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
    • B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
    • B02C13/26—Details
    • B02C13/288—Ventilating, or influencing air circulation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/20—Adding fluid, other than for crushing or disintegrating by fluid energy after crushing or disintegrating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/18—Adding fluid, other than for crushing or disintegrating by fluid energy
    • B02C23/24—Passing gas through crushing or disintegrating zone
    • 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
    • B02C9/04—Systems or sequences of operations; Plant

Definitions

  • the invention relates to a method for producing a high-quality flour according to the preamble of claim 1.
  • Baked goods is flour whose properties, such as the water absorbency, exert a significant influence on the consistency and thus on the processability of a dough.
  • the invention has for its object to provide a method of the type mentioned above, which lead to a flour from which a dough with improved "machine friendliness" and thus more efficient processing option in the craft business can be produced.
  • Another object of the invention is the production of a flour with increased water absorption in the dough production with consistent dough consistency, as well as a longer freshness of the baked goods made from the flour.
  • the interaction of the three factors results in softening without the dough running wide.
  • the dough is stronger in spite of higher water binding and can therefore be better prepared in small business with machines. Since the dough does not stick when processed, it also does not have to be "floated", which can be beneficial for meal allergies.
  • the increased water absorption leads to a flavor enhancement, whereby the flavorings present in the flour are perceived more intense.
  • the flour temperature immediately after exiting the impact mill should not exceed 70 ° C and is preferably 40 to 60 ° C.
  • the residence time of the flour particles in the impact mill is preferably set by controlling the amounts of air supplied to the flour before it enters the impact mill and after it leaves the impact mill.
  • a throttling of the air supply in front of the mill leads to an increase of the Flour / air ratio and subsequently to a longer residence time of the flour particles in the mill.
  • An increase in the air supply to the mill leads to a stronger suction and thus to a shorter residence time.
  • the optimum residence time is adjusted taking into account the other parameters by coordinated control of the two air supplies.
  • the setting of the impact speed is preferably carried out by a corresponding change in the speed of the impact mill.
  • a device suitable for carrying out the method according to the invention comprises a flour reservoir, a trough equipped with a screw conveyor which connects the flour reservoir to a mixing vessel connected to a central inlet port of an impact mill, a first air intake line connected to the mixing vessel with a first throttle device for controlling the air supply and Adjustment of the air / flour mixing ratio before the flour enters the impact mill, a second air intake duct connected to an outlet opening of the impact mill with a second throttling device for controlling the air supply after the flour from the impact mill has been discharged and a filter chamber connected to the outlet opening a lock for the flour discharge connected to the suction side of a fan conveyor line.
  • a pin mill is used as an impact mill.
  • a flour reservoir 26 is connected via a trough 30 to a mixing vessel 32 arranged in this conveying screw 28.
  • the mixing container 32 leads from above a first air intake pipe 36 equipped with a first throttle valve 38.
  • the mixing vessel 32 is connected via a feed pipe 34 to a central feed opening 14 of a pin mill 12.
  • Below the pin mill 12 is an outlet opening 16, to which a second air intake pipe 40 equipped with a second throttle valve 42 is connected.
  • a likewise connected to the outlet opening 16, working as Saugpneumatik feed line 18 is connected via a equipped with a Mehlaustragsschleuse 22 filter chamber 20 with the suction side of a fan 24.
  • untreated flour is transported by means of the screw conveyor 28 from the flour reservoir 26 into the mixing tank 32, mixed with the fresh air sucked in via the first air intake pipe 36 and fed via the feed pipe 34 into the central feed opening 14 of the pin mill 12.
  • the treated flour leaves the pin mill 12 via the outlet point 16 arranged at the lowest point and is transferred as a flour / air mixture via the delivery line 18 into the filter chamber 20.
  • the retained in the filter chamber 20 flour is removed through the lock 22.
  • the filtered air exits the system 10 at the fan 24.
  • the flour / air mixture formed in the mixing container 32 is conveyed by means of the suction pneumatics described above through the pin mill 12 into the filter chamber 20.
  • the throttled suction rate in the mixing vessel was 7 m / s.
  • the suction rate of the air in the air intake pipe after the mill was set to 27 m / s.
  • the impact area was increased by replacing the 7 mm original pins with 5 mm pins while simultaneously increasing the number of pins from 3429 to 3676.
  • the impact intensity or the impact velocity was increased by a corresponding increase in the rotational speed of the mill or a diameter of 50 cm and accordingly an area of 1962.5 cm 2 having rotor.
  • Semi-white flour with an ash content of 0.78% corresponding to a semi-white flour Type 780 was treated in the above described equipment using the converted pin mill.
  • the moisture content of bread made from treated flour increases by 4 to 10% relative to the moisture content of bread made from untreated flour, depending on the degree of baking.

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Cereal-Derived Products (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Noodles (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Claims (5)

  1. Procédé de fabrication d'une farine de grande valeur qualitative par mouture d'une farine non traitée par apport d'air dans un broyeur à impact,
    caractérisé en ce que
    la farine non traitée est traitée à une vitesse d'impact de 150 à 200 m/s et avec une production de farine de 225 à 450 kg/h, la température de la farine étant de 40 à 70°C juste après le broyeur à impact, et les protéines contenues dans la farine coagulant.
  2. Procédé selon la revendication 1, caractérisé en ce que la température de la farine est de 40 à 60°C juste après le broyeur à impact.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que le temps de séjour des particules de farine dans le broyeur à impact est ajusté en commandant les quantités d'air acheminées à la farine avant son entrée dans le broyeur à impact et après sa sortie du broyeur à impact.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la vitesse d'impact est ajustée par modification de la vitesse de rotation du broyeur à impact.
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que le broyeur à impact est un broyeur à doigts pulvériseurs.
EP04405573A 2004-03-15 2004-09-13 Procédé et dispositif pour la fabrication de farine Expired - Lifetime EP1577014B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00427/04A CH694267A5 (de) 2004-03-15 2004-03-15 Verfahren und Vorrichtung zur Herstellung eines Mehles.
CH4272004 2004-03-15

Publications (2)

Publication Number Publication Date
EP1577014A1 EP1577014A1 (fr) 2005-09-21
EP1577014B1 true EP1577014B1 (fr) 2006-09-27

Family

ID=33102859

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04405573A Expired - Lifetime EP1577014B1 (fr) 2004-03-15 2004-09-13 Procédé et dispositif pour la fabrication de farine

Country Status (4)

Country Link
EP (1) EP1577014B1 (fr)
AT (1) ATE340650T1 (fr)
CH (1) CH694267A5 (fr)
DE (1) DE502004001598D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106635579B (zh) * 2015-11-03 2023-06-16 宁波乐惠国际工程装备股份有限公司 连续调浆设备和啤酒生产线

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB689936A (en) * 1950-04-22 1953-04-08 Alpine Ag Eseisengiesserei & Maschinenfa Improvements in or relating to sieveless centrifugal mills
US4463022A (en) * 1980-02-25 1984-07-31 Sterner Mark H Method of grinding and cooking whole grain
AT374082B (de) * 1982-05-27 1984-03-12 Entzmann Dipl Ing Karl Verfahren zur behandlung von ausgangsmaterialien fuer brot, gebaeck od. dgl.
DD272418B5 (de) * 1988-05-27 1997-08-07 Univ Freiberg Bergakademie Verfahren zur Zerkleinerung und Klassierung in Prallzerkleinerungsmaschinen und Prallzerkleinerungsmaschine zur Durchfuehrung des Verfahrens
US5063078A (en) * 1989-11-16 1991-11-05 General Mills, Inc. Method of dry milling and preparing high soluble fiber barley fraction
DE4414692A1 (de) * 1994-04-27 1995-11-02 Jackering Altenburger Masch Verfahren zur Mahltrocknung schwierig zu trocknender Produkte sowie für die Durchführung dieses Verfahrens geeignete Einrichtung
DE19641781A1 (de) * 1996-10-10 1998-04-16 Clariant Gmbh Verfahren und Vorrichtung zum gleichzeitigen Mahlen und Trocknen eines feuchten Celluloseether enthaltenden Mahlgutes

Also Published As

Publication number Publication date
ATE340650T1 (de) 2006-10-15
EP1577014A1 (fr) 2005-09-21
CH694267A5 (de) 2004-10-29
DE502004001598D1 (de) 2006-11-09

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