DE19756098B4 - Process and plant for treating brewing cereals - Google Patents

Process and plant for treating brewing cereals

Info

Publication number
DE19756098B4
DE19756098B4 DE1997156098 DE19756098A DE19756098B4 DE 19756098 B4 DE19756098 B4 DE 19756098B4 DE 1997156098 DE1997156098 DE 1997156098 DE 19756098 A DE19756098 A DE 19756098A DE 19756098 B4 DE19756098 B4 DE 19756098B4
Authority
DE
Germany
Prior art keywords
grain
characterized
cereals
cleaning
process
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
DE1997156098
Other languages
German (de)
Other versions
DE19756098A1 (en
Inventor
Jürgen Möbius
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 GmbH
Original Assignee
Buehler GmbH
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 GmbH filed Critical Buehler GmbH
Priority to DE1997156098 priority Critical patent/DE19756098B4/en
Publication of DE19756098A1 publication Critical patent/DE19756098A1/en
Application granted granted Critical
Publication of DE19756098B4 publication Critical patent/DE19756098B4/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12CBEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
    • C12C1/00Preparation of malt
    • C12C1/125Continuous or semi-continuous processes for steeping, germinating or drying
    • C12C1/13Continuous or semi-continuous processes for steeping, germinating or drying with vertical transport of the grains
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12CBEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
    • C12C1/00Preparation of malt
    • C12C1/02Pretreatment of grains, e.g. washing, steeping

Abstract

method for the treatment of brewing cereals, where the raw cereal is only one Cleaned and then softened, characterized that the grain after the completion of cleaning and before the soft a scrubbing process by gently rubbing the surface of the Cereal grains together is subjected to such that its moisture absorption is increased

Description

  • The The invention relates to a method according to the preamble of Claim 1 and to a system according to the preamble of claim 4.
  • unprocessed cereals of any kind must first of a thorough after its delivery Be subjected to cleaning. This generally happens with one a whole range of different mechanical sorting machines, such as Stone readers, wind sifters, sieves, trieurs, magnetic separators etc. However, it has already been suggested, all of these mechanical sorting machines or a part thereof, by at least to replace an optical sorter, as shown has, besides a reduction in space and investment costs, too a reduction harmful Germs on the surfaces the grains and thus to a longer one Shelf life leads.
  • at However, brewing cereals have special requirements. Because the relatively long soft process, over led many hours It brings, that on the surface of grains still adhering germs also optimal conditions for propagation are given. This germ multiplication is mainly considering the upcoming wastewater disposal to draw.
  • In the GB 1285056 A is a malting process described in the outer Scha len len particular barley grains in the amount of up to 10% of the grain weight to be removed by an abrasive treatment to achieve a faster malting and to obtain a higher extract. However, a large part of the husks is lost.
  • Known is another method of scouring grain, which too Flour, haze and semolina are to be ground. Also this procedure is the distance from the outside Core shells in the range of 0.2-2% based on the weight of the grain. The grains are in a scrubber force-fed and between rasp surfaces of a Scrubbed rotor and scouring sections of a scouring coat.
  • Of the Invention is therefore the object of the moisture absorption of cereal grains to increase. This is achieved with the features of claim 1.
  • The expedient gentle rubbing leads to a load on the surface layers of cereal grains and thus to a faster moisture absorption. But this brings It goes without saying that in practice the process of switching essential shortened becomes. But this brings the inventive method a double Profit, because on the one hand, the costs of wastewater disposal reduces, on the other hand, but also increases the productivity of the process.
  • Even though in itself a wet scrubbing would come into question, for example by the Cereals before or during scrubbing, as known for other purposes Dry scrubbing is better, as it increases the risk of carry-over is reduced by germs. In addition, the removal of the chipped Dirt particles in this way easier.
  • The Scrubbing needs to be carried out of the inventive Process certainly not operated with high energy consumption rather, a gentle treatment is indicated.
  • A invention Annex therefore has the features of claim 3.
  • Further Details of the invention will become apparent from the following Description of an embodiment schematically illustrated in the drawing. The sole figure of the drawing shows a schematic of an embodiment an inventive Investment.
  • The drawing is purely visual through four only indicated elevators 2 to 5 divided into sections. In place of the elevators 2 to 5 Of course, any other suitable means of transport can be used. For the delivered grain, especially barley, is on the left a group of incoming silos 1 intended. In a pre-cleaning area 6 between the elevators 2 and 3 Treatment steps are carried out to remove coarse and fine foreign matter. The treatment steps of a first cleaning are in one, between the elevators 3 and 4 as well as between the elevators 4 and 5 arranged, first cleaning area 7 respectively. 7a and 7b shown. Right of the elevator 5 follows a processing area 8th with soft boilers 22 , These soft-boilers 22 is a supply line 23 for fresh water and an outlet pipe 24 allocated for wastewater. It is understood that in place of the batchwise working soft kettle 22 Also, a continuous washing or soft device could be provided, as has been proposed in itself.
  • The delivered grain from the input silos 1 first becomes a magnetic separator 9 and then a drum screen 11 fed. This first sieve 11 separates coarse impurities, such as earth tubers, wood and straw parts, so like stones etc. from the grain. Optionally, a second sieve is still provided to discharge small foreign matter, such as sand. To remove dust particles, the grain can then be subjected to a further screening by an air stream. Then the brewing cereal or the barley becomes a balance 10 fed. This pre-cleaning must be carried out at high bulk material throughputs and therefore may not separate the impurities from the grain grains.
  • After the pre-cleaning 6 The pre-cleaned grain arrives in raw fruit silos 14 and stands there for cereals od. Like. Separately ready for further processing. The further processing initially preferably comprises a first cleaning 7a and a second cleaning 7b , When using different cereals different procedures can be used. For example, the desired blend of different cereals can be added directly to the raw fruit silos 14 be generated so that the grain mixture is processed further. If necessary, however, the different types of grain arrive separately through the first cleaning 6 and are only then mixed, or it is envisaged that the different cereals are also performed separately through the second cleaning and preferably before the switch, but possibly also only after that, are mixed. To process a particular cereal mixture, the necessary cereals are the silos 14 taken and with the help of the raw fruit silos 14 respectively assigned quantity controllers 15 mixed and over a conveyor 16 a balance determining the weight of the mixture 10a fed. The first cleaning closes to the balance 10a and optionally includes a further magnetic separator 9a , another screening device 11a with an air classifier 12 , if necessary also a stone reader. The sieve device 11a achieved preferably with two vibrating screens a separation into cereal grains and larger and smaller foreign matter. Due to the smaller throughput and the narrower separation limits is one compared to the pre-cleaning 6 better separation achieved.
  • To the elevator 4 closes in the cleaning stage 7b at least one trieur 18 optionally also a fluidized bed stone reader and / or a light grain reader (the latter are not shown). Because of its vibrations, a stone extractor makes it possible, on the one hand, to separate according to the specific weight and, on the other hand, to separate the air resistance on account of the fluidized bed produced therein. From at least one round and / or spiral and / or disc 18 a separation is carried out according to shape and size by using desired shaped grains continue to be carried out. Undesirable particles, such as stunted grains, breakage, particles that are too long or too round are eliminated.
  • After another sifting in a plan sifter 11b The individual fractions are weighed using a scale 10a weighed before these in intermediate silos 14a reach. Again, these silos 14a The necessary cereals are taken and with the help of the silos 14a respectively assigned quantity controllers 15 mixed and over a conveyor 16 a balance determining the weight of the mixture 10b be supplied.
  • In malting plants according to the state of the art, the brewing cereals subsequently reached the soft kettle immediately 22 , However, since stubborn impurities usually still adhere to the shell of the cereal grains, there is a considerable contamination of the soft water and possibly also to a higher consumption of fresh water than would be desirable. In addition, there is a now increasingly difficult to solve disposal problem for this wastewater.
  • To mitigate this problem at least, is according to the invention after the second purification 7b and before the soft step with the boilers 22 a gentle scouring device 13 provided, which is preferably such that the scouring process mainly by rubbing the surfaces of the cereal grains together. This scrubber device 13 may be a Trockenscheuermaschi ne, as it is preferred, but it may also be, depending on the application, a wet or wet scrubber machine. If desired, it is also possible to successively connect a dry scrubber device and a wet scrubber device.
  • The scrubber 13 has a working housing 100 with an enema 101 as well as an outlet 102 for the cleaned cereal. Inside the work enclosure 100 is a cylindrical scouring coat 103 arranged stationary, within which a rotatable about a horizontal axis rotor 105 on both end sides in camps 106 stored and by a drive motor 28 via a belt drive 107 is drivable. The working housing 100 opens in the middle part at the bottom in a collection funnel 17 over which the abrasion abrasion is dissipated. With this abrasion, dirt remaining on the shells is removed as well as superficial microbial contamination.
  • The scouring coat 103 consists of sieve sections 109 as well as rasp surfaces 110 , wherein the rasp surfaces preferably for adjusting the effective working gap between the rotor 105 and these rasp surfaces 110 against the rotor 105 are available or wegstellbar. The rasping surfaces 110 are expediently at least in part, as indicated in the drawing, provided with projections and / or depressions for promoting a relative movement between the surfaces of the cereal grains. Rasp surfaces preferably change over the circumference, seen in cross section 110 and screen surfaces 109 from. But it can also be a training of the sieve are chosen, as they are from the DE 13 347 A has become known in which the edges of a Schlitzsiebes are partially bent inwards and thus form inwardly projecting projections in the slots formed by the slots. On the other hand, the projections need not necessarily be formed of rigid material, because they should favor only the relative movement between the surfaces of the cereal grains. More or less elastic projections are quite possible, although they are not preferred because of a feared susceptibility to wear.
  • In the example shown, the scrubbing coat alternately sieve sections 109 and rasping surfaces 110 so that the abrasion abrasion immediately after its formation immediately through the sieve sections 109 from the workroom 111 between being removed. The rotor 105 in turn, is approximately octagonal in cross-section, so that alternately each one of the eight surfaces themselves as a rasp surface 112 (with protrusions and / or depressions) and as a conveying surface 113 , ie with a spiral screw (as shown) - with the exception of an inlet section - is formed. The conveyor surfaces 113 extend over the entire length of the working space 111 and are only in the inlet section by corresponding, distributed over the entire circumference auger elements 114 coarser structure and possibly larger diameter complements, so in the area of the inlet 101 an auger 115 to build.
  • In the outlet area 116 is expediently only schematically indicated backflow flap 117 attached and hinged at the upper end, for the simplest cases by sliding weights 118 is adjustable for a respective peeling intensity, as is known per se in Reisschäl- or -poliermaschinen. It should be mentioned here that the scouring machine to be provided according to the invention need not necessarily be formed in the illustrated, preferred manner. For example, would be a, z. B. surrounded by a sieve wall, vessel with a stirrer conceivable that gives the grains with each other a relative movement. In principle, it is only necessary to roughen the shells of the grains on the surface, on the one hand the water absorption capacity for the subsequent switch in the boilers 22 increased and thus this process step is significantly shortened, on the other hand, the surface adhering impurities continue to remove, so as to make the switch cheaper.

Claims (4)

  1. Process for treating brewing cereals, in which the raw cereals are first cleaned and then softened, characterized in that, after completion of the cleaning and before softening, the grain is subjected to a scouring operation by gently rubbing the surface of the cereal grains against each other such that its moisture absorption is increased
  2. Method according to claim 1, characterized in that that the scrubbing process is carried out in the dry state of the grain.
  3. Plant for carrying out the method according to claim 1, with at least one cleaning machine ( 11b ) for separating impurities from the brewing grain and at least one soft apparatus ( 22 ), characterized in that between the at least one cleaning machine ( 11b ) and the soft apparatus ( 22 ) at least one scrubbing machine ( 13 ), one of walls ( 103 . 113 ) with exhaust openings for any residual impurities limited and via a filling opening ( 101 ) accessible scouring room ( 111 ) with at least one rotor ( 105 ) having.
  4. Plant according to claim 3, characterized in that the walls ( 103 . 113 ) are provided at least in part with projections and / or depressions for promoting a relative movement between the surfaces of the cereal grains.
DE1997156098 1997-12-17 1997-12-17 Process and plant for treating brewing cereals Expired - Lifetime DE19756098B4 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1997156098 DE19756098B4 (en) 1997-12-17 1997-12-17 Process and plant for treating brewing cereals

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE1997156098 DE19756098B4 (en) 1997-12-17 1997-12-17 Process and plant for treating brewing cereals
PCT/IB1998/001319 WO1999031217A2 (en) 1997-12-17 1998-08-20 Method and system for treating brewing grain
AU86427/98A AU8642798A (en) 1997-12-17 1998-08-20 Method and system for treating brewing grain

Publications (2)

Publication Number Publication Date
DE19756098A1 DE19756098A1 (en) 1999-06-24
DE19756098B4 true DE19756098B4 (en) 2009-05-14

Family

ID=7852247

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1997156098 Expired - Lifetime DE19756098B4 (en) 1997-12-17 1997-12-17 Process and plant for treating brewing cereals

Country Status (3)

Country Link
AU (1) AU8642798A (en)
DE (1) DE19756098B4 (en)
WO (1) WO1999031217A2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE13347C (en) *
GB1285056A (en) * 1969-05-13 1972-08-09 R & W Paul Maltsters Ltd Malting of dehusked grain
DE4345422C2 (en) * 1993-08-10 2002-09-12 Buehler Ag Grain scrubbing method and apparatus

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1264822A (en) * 1969-06-11 1972-02-23
GB1408458A (en) * 1972-12-07 1975-10-01 Pauls Sandars Ltd Method and apparatus for treating grain
CH624020A5 (en) * 1977-09-30 1981-07-15 Buehler Ag Geb
MX147108A (en) * 1979-01-24 1982-10-06 Felipe Salete Garces Polishing Machine improvements and grain whitening

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE13347C (en) *
GB1285056A (en) * 1969-05-13 1972-08-09 R & W Paul Maltsters Ltd Malting of dehusked grain
DE4345422C2 (en) * 1993-08-10 2002-09-12 Buehler Ag Grain scrubbing method and apparatus

Also Published As

Publication number Publication date
AU8642798A (en) 1999-07-05
WO1999031217A3 (en) 1999-09-02
WO1999031217A2 (en) 1999-06-24
DE19756098A1 (en) 1999-06-24

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