WO1988002396A1 - Systeme de micromaltage automatique - Google Patents

Systeme de micromaltage automatique Download PDF

Info

Publication number
WO1988002396A1
WO1988002396A1 PCT/AU1987/000337 AU8700337W WO8802396A1 WO 1988002396 A1 WO1988002396 A1 WO 1988002396A1 AU 8700337 W AU8700337 W AU 8700337W WO 8802396 A1 WO8802396 A1 WO 8802396A1
Authority
WO
WIPO (PCT)
Prior art keywords
tank
micromalting
containers
grain
air
Prior art date
Application number
PCT/AU1987/000337
Other languages
English (en)
Inventor
James Gerard Cleary
Original Assignee
Phoenix Systems Pty. Ltd.
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 Phoenix Systems Pty. Ltd. filed Critical Phoenix Systems Pty. Ltd.
Publication of WO1988002396A1 publication Critical patent/WO1988002396A1/fr
Priority to DK297288A priority Critical patent/DK297288A/da

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12C—BEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
    • C12C1/00—Preparation of malt

Definitions

  • This invention relates to a process and apparatus for the micromalting, that is, the malting in small batches of cereal grains such as barley.
  • maltsters and brewers require a micromalting system to test barley before it is used for commercial malting and brewing to optimize production conditions for given allotments of barley grain to meet the malting quality specification.
  • barley breeders and cereal chemists require the production of suitable and reproducible malts of given quality to allow the selection of superior breeding lines of barley following chemical analysis of the malts produced therein.
  • apparatus for the micromalting of cereal grains comprising a controlled condition tank, means to support a plurality of perforated micromalting containers within the tank and means to control the conditions in the tank in accordance with the predetermined schedule to malt the grain.
  • the means to support the micromalting containers may include means to agitate the container to mix any contents therein.
  • Such a means to support the micromalting containers may comprise at least one parallel pair of rollers spaced apart to support a cylindrical container thereon and with the rollers adapted to rotate whereby to rotate the cylinder and to agitate any contents in the cylinder.
  • the means to control the conditions in the tank may include means to circulate and condition air and water supplied into the " tank. There may also be means to supply heated air to the tank for the kilning stage of the micromalting process. Such air may be heated in the range of 10 degrees to 100 degrees depending upon the stage in the malting process.
  • a secondary reservoir in which water and air may be conditioned before adding at controlled temperature and condition to the micromalting tank.
  • weir arrangements to control water level in the tank such that at a first level containers when supported in the tank are immersed and at a second -lower level the water level in the tank is below the level of the containers when supported in the tank.
  • the invention may be said to reside in a process for the micromalting of cereal grains comprising the steps of supporting a plurality of samples of barley in perforated containers in a controlled condition tank, agitating the containers, and controlling the conditions in the tank according to a predetermined sequence to steep and germinate the grain whereby to malt the grain in the containers.
  • the process may further include the steps of kilning the cereal grain after steeping and germination.
  • micromalting system which because of a controlled sequence of events which occur in a single enclosed tank reproducibility of results may be obtained.
  • the top tank, the micromalting tank of the system may be of a rotating drum design incorporating interchangeable bed and drum assemblies enabling a single machine to be used for multiple batch sizes.
  • Water levels may be fully adjustable for steeping, air resting, germination and the like using a controlled weir system and the kiln and air flow and heat capacities may be adjustable and fully integrated.
  • the system may use a reverse cycle refrigeration plant for cooling and heating of water and air and may also use auxiliary heating perhaps of the immersion type for heating liquid medium used to maintain the desired temperature in the bottom or reservoir tank.
  • the liquid medium may be circulated at precise rates employing water circulating pumps to the top tank.
  • An air circulation system may maintain a precisely controlled temperature and humidity environment for the germinating grain, the air being circulated by a fan and water circulation and adjustable water sprays being provided to humidify to the desired extent.
  • a kilning system may be driven by a fan and heating by electrical kiln air heating elements for the purpose of drying the grain to a desired moisture content. The amount of recycling of moisture may be varied as desired.
  • the containers to contain the cereal grains may be stainless steel perforated mesh canisters of various sizes from a diameter of 50 millimetres to 250 millimetres and of varying lengths depending upon the volume of grain to be malted and these may be rotated at precise speeds by rotating rollers throughout the steeping, germination and kilning processes.
  • rollers may be run at speeds of 0.1 to 10 revolutions per minute.
  • micromalting system such as temperature, humidity and timing controls may be controlled by a programmable microprocessor via precision sensors and other suitable interface devices.
  • the production of reproducible micromalts is an essential part in the assessment of new barley lines for malting quality.
  • the basic design and control of the micromalting system of the present invention may use a digital process controller to provide fully automatic multiple program schedules on all functions including steeping, germination and kilning. These functions may all be performed in the one unit with minimum handling.
  • a rotating drum design is a preferred embodiment of the invention and ensures malt sample uniformity and assists in maximizing repeatability. Numerous sample sizes and numbers may be possible by varying drum sizes and roller configurations, typically 80 samples of 30 grams each, or 12 samples of 1500 grams may be processed in each run.
  • the machine may have a capacity to accommodate 18 kilograms of grain enabling its use as a pilot malting facility. Programming versatility allows for a wide range of malting and research conditions.
  • micromalting tank There may be further provided inlets for the addition of gases such as carbon dioxide or nitrogen to the micromalting tank to vary conditions.
  • gases such as carbon dioxide or nitrogen
  • Production of special purpose malts can be achieved by controlled application of other materials such as the production of peat malt by smoke induction via a special kiln inlet port.
  • the preferred embodiment of the micromalting machine of the present invention consists of two fully insulated stainless steel tanks, an upper malting tank 1 and a lower water and air preconditioning tank 2.
  • an upper tank 1 a pair of rollers 3 support cylindrical containers 4 in which the grain to be malted may be placed.
  • the size of the cylindrical container 4 will depend upon the amount of grain to be malted.
  • the roller 3 may be driven by motor 5 through drive 6 to continuously agitate the grain within the containers 4.
  • the motor 5 may be a variable speed controllable motor to control the amount of rotation and the speed of rotation in the roller 3 and hence the amount of agitation in the containers 4.
  • An air entry duct 7 is provided into the malting tank -1 and vents under a perforated diffusion plate 8 so that essentially an equal flow of air is achieved throughout the length of the tank 1.
  • Humidifier sprays 9 are provided in the tank to spray water into the tank to control the humidity during the germination stage of the malting process.
  • Water inlet 10 is provided to the tank to fill water into the tank during the wash, rinse and steeping stages of the micromalting process.
  • Upper weir 11 provides an upper water level for the steeping stage and lower water weir 12 provides a lower water level so that some water remains in the tank during the germination stage.
  • Drain 13 is provided to completely drain the malting tank as required.
  • a recirculating air duct 14 is provided to recirculate air into the micromalting tank 1 and includes a heater arrangement 15 to heat air for the kilning stage and for controlling the air temperature during the various preconditioning stages.
  • a controllable vent 16 is provided to provide for a certain amount of recycling of air depending upon the stage in the malting process.
  • Fan 17 driven by motor 18 is provided for recycling of the air.
  • An auxiliary inlet duct 41 controlled by valve 42 is provided to add special atmospheres such as carbon dioxide, nitrogen or smoke for particular malting tests.
  • a water jacket 19 is provided under the micromalting tank to provide auxiliary temperature control of the conditions within the tank 1.
  • Temperature sensor 20 humidity sensor 21 and level sensors 22 and 23 are provided in the micromalting tank 1 to monitor and control conditions in the tank.
  • the bottom reservoir or tank 2 is provided to condition air and water before they are directed into the micromalting tank.
  • the reservoir 2 includes a reverse cycle refrigeration coil 24 to heat or cool the contents of the reservoir as necessary and also an auxiliary electric heater 25 if necessary.
  • Temperature sensor 26 is provided to determine the air or water temperature in the tank and humidity sensor 27 is provided to determine the humidity of air in the tank.
  • Three level sensors 28, 29 and 30 are provided in the bottom tank. In ascending order level sensor 28 provides a safety point for water in the lower tank and with less than that level covered, no systems will operate. Level 29 provides a lower level and level 30 provides an upper level in the tank.
  • Float valve 31 is provided as a safety back-up to maintain the water level at a desired level if other systems fail.
  • Water spray 32 is provided to humidify air in the lower reservoir as required.
  • Drain 33 is provided to drain water from the tank.
  • Recirculating pump 34 is used to direct water into the micromalting tank and into the water jacket as desired and return lines 35 and 36 return water from the micromalting tank.
  • Water inlet is at 37.
  • Duct 38 controlled by valve 40 conducts air from the reservoir 2 into the micromalting chamber and duct 39 is provided to return air from the micromalting chamber.
  • a suitable air circulation system (not shown) for ducts 38 and 39 is provided.
  • the programmable controller arrangements may be provided to provide a micromalting process with reproducible results with various arrangements of steeping and germination and kilning.
  • the controlled parameters may be entered for each cycle depending upon the tests being carried out. These may include the timing of the various stages, the temperature, the amount of agitation by the rollers and the humidity in the main micromalting tank.
  • a typical schedule is shown in the following table 1. Cycle No. Stage Hours Minutes Temp. X Roller on % HUMIDITY
  • the washing cycle is designed to clear the extraneous matter from the malting tank. Mains water pressure distributed via a multiple nozzle spray system. During this cycle also mains or other water enters the preconditioning tank. Refrigeration or heating is turned on only when a predetermined water level is reached and the water is conditioned to the desired temperature.
  • the rinse cycle is effectively a steep cycle used for washing foreign matter, dust etc. from the grain.
  • the rinsing water rises in the malting tank to the upper steeping level and is continually circulated.
  • 35 to 40 litres of water out of a total of 140 litres is dumped to reduce the accumulation of dissolved matter.
  • a high water volume to grain volume ratio precludes the need to dump all of the steeping water.
  • the fan is used to circulate air through the malting tank.
  • water is added to the bottom tank until the correct level is reached.
  • the temperature of water must reach the programmed temperature and correct water level must be attained before the controller will proceed to the first steeping stage irrespective of the time taken.
  • Water is continually recirculated in the tank in parallel with the air circulation humidificatio ⁇ system permitting optimal heat transfer efficiency and uniform temperature.
  • temperature controlled water is pumped to the malting tank and continually circulated via the pump 34 and with the solenoid set in the correct manner.
  • the water level in the malting tank being controlled by the weir arrangement to just cover the malt containers to a desired level.
  • the water level in the upper tank is lowered to the lower controlled level at the lower weir and humidified air is circulated across and through the grain. Further moisture control is achieved by program operation of spray nozzles 9 in the micromalting tank. Additional air may be circulated from the air in the lower chamber or from the fan 17 in the kiln chamber. It will be noted from the table that a number of steeping and resting stages may be used before the kilning stage. Kilning is commenced automatically on completion of germination. At this stage the air rest damper is closed to stop air entering from the lower reservoir and the kiln damper is automatically positioned via a controller.
  • Kilning air enters beneath the malt bed through the diffusion plate 8 and is recycled by means of fan 17 with a desired amount of recycling.
  • the position of the damper to determine the amount of recycling is set during each kilning cycle to a predetermined position by means of a microprocessor using feed ⁇ back control.
  • the positioning of the damper controls the proportion of recirculated and fresh air during kilning.
  • the damper is 20 per cent closed for kiln stage 1, 40 per cent for kiln stage 2, 75 per cent for kiln stage 3 and 90 per cent closed for kiln stage 4.
  • the damper is fully closed.
  • the malt tank is fully sealed to maintain the malted samples in their malted condition for testing.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Food Science & Technology (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

Dans un appareil et un procédé de micromaltage de céréales, en particulier de l'orge, la céréale est placée dans un réservoir dans des conditions contrôlées pendant toute la durée des diverses étapes de maltage appliquées séquentiellement et destinées à assurer l'aptitude de répétition du processus. On agite la céréale durant le maltage en la plaçant dans des cylindres disposés sur des rouleaux à l'intérieur du réservoir.
PCT/AU1987/000337 1986-10-02 1987-10-02 Systeme de micromaltage automatique WO1988002396A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK297288A DK297288A (da) 1986-10-02 1988-06-01 Automatisk mikromaltningsanlaeg

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPH8280 1986-10-02
AUPH828086 1986-10-02

Publications (1)

Publication Number Publication Date
WO1988002396A1 true WO1988002396A1 (fr) 1988-04-07

Family

ID=3771838

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1987/000337 WO1988002396A1 (fr) 1986-10-02 1987-10-02 Systeme de micromaltage automatique

Country Status (3)

Country Link
EP (1) EP0286661A4 (fr)
DK (1) DK297288A (fr)
WO (1) WO1988002396A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2258243A (en) * 1991-07-31 1993-02-03 Minch Norton Dev Ltd Malt production using steeping vessel with water recirculating means
WO2001043531A3 (fr) * 1999-12-14 2002-03-07 Maxwell Davidson Ltd Procede ameliore de germination de graine ou de cereale
ITUD20100080A1 (it) * 2010-04-16 2011-10-17 B B C S R L Macchina per la maltatura dell'orzo e relativo procedimento
US9988596B2 (en) 2015-02-24 2018-06-05 Salish Coast Enterprises, Inc. Controlled germination apparatus
FR3123072A1 (fr) * 2021-05-18 2022-11-25 Passion Malts Installation de malterie

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1079573A (en) * 1964-09-16 1967-08-16 Oskar Seeger A germinating cabinet

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1277188B (de) * 1964-09-25 1968-09-12 Miag Muehlenbau & Ind Gmbh Schrank zum Probemaelzen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1079573A (en) * 1964-09-16 1967-08-16 Oskar Seeger A germinating cabinet

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of EP0286661A4 *

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2258243A (en) * 1991-07-31 1993-02-03 Minch Norton Dev Ltd Malt production using steeping vessel with water recirculating means
GB2258243B (en) * 1991-07-31 1995-04-26 Minch Norton Dev Ltd A method and apparatus for producing malt
WO2001043531A3 (fr) * 1999-12-14 2002-03-07 Maxwell Davidson Ltd Procede ameliore de germination de graine ou de cereale
ITUD20100080A1 (it) * 2010-04-16 2011-10-17 B B C S R L Macchina per la maltatura dell'orzo e relativo procedimento
EP2377915A1 (fr) 2010-04-16 2011-10-19 B.B.C. Srl Machine pour orge de brasserie et procédé associé
US9988596B2 (en) 2015-02-24 2018-06-05 Salish Coast Enterprises, Inc. Controlled germination apparatus
US10760039B2 (en) 2015-02-24 2020-09-01 Salish Coast Enterprises, Inc. Controlled germination apparatus
FR3123072A1 (fr) * 2021-05-18 2022-11-25 Passion Malts Installation de malterie

Also Published As

Publication number Publication date
DK297288A (da) 1988-08-01
EP0286661A4 (fr) 1988-11-29
EP0286661A1 (fr) 1988-10-19
DK297288D0 (da) 1988-06-01

Similar Documents

Publication Publication Date Title
US5231029A (en) Apparatus for the in situ hybridization of slide-mounted cell samples
US5119721A (en) Apparatus for producing washed rice
US10760039B2 (en) Controlled germination apparatus
US4103722A (en) Apparatus for sequentially treating one or more specimens of cellular material with a plurality of treating liquids
US4628803A (en) Autoclave for processing cocoa liquor
WO1988002396A1 (fr) Systeme de micromaltage automatique
US10287536B2 (en) Small scale grain malting apparatus and method
EP3679119B1 (fr) Processus de maltage de grain d'infusion comprenant une étape de circulation d'eau
KR920001529B1 (ko) 쌀알 가습방법 및 장치
US20110200497A1 (en) Apparatus for treatment of tissue specimens
US3849255A (en) Device for germinating and drying malt
Atkinson et al. Automated malting equipment for quality selection in barley breeding programs
EP1483364B1 (fr) Procede et dispositif de maltage
US3853713A (en) Method and apparatus for processing granular and other materials
Glennie‐Holmes et al. A computer controlled micromalter for assessment of the malting potential of barley crossbreds
JPS6320041A (ja) 調質機能を有する精米機
EP2377915A1 (fr) Machine pour orge de brasserie et procédé associé
GB1044029A (en) A new and improved malting plant
US3450600A (en) Malting apparatus in series
Bettner et al. Laboratory Drum-Malting Equipment II. Multiple Units
JP2003159012A (ja) バッチ連続式浸漬装置
US3616261A (en) Continuous malting apparatus
US20230018289A1 (en) Modular malting plant
Anderson Laboratory Malting. I. Equipment
JPH07170967A (ja) 麹重量測定型麹ストッカー

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): BR DK JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE FR GB IT LU NL SE

WWE Wipo information: entry into national phase

Ref document number: 1987906648

Country of ref document: EP

WWP Wipo information: published in national office

Ref document number: 1987906648

Country of ref document: EP

WWW Wipo information: withdrawn in national office

Ref document number: 1987906648

Country of ref document: EP