EP0509876A1 - Behandlungsvorrichtung für Körner und Verwendung dieser Vorrichtung - Google Patents

Behandlungsvorrichtung für Körner und Verwendung dieser Vorrichtung Download PDF

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Publication number
EP0509876A1
EP0509876A1 EP92400947A EP92400947A EP0509876A1 EP 0509876 A1 EP0509876 A1 EP 0509876A1 EP 92400947 A EP92400947 A EP 92400947A EP 92400947 A EP92400947 A EP 92400947A EP 0509876 A1 EP0509876 A1 EP 0509876A1
Authority
EP
European Patent Office
Prior art keywords
grains
wheel
tank
water
outlet
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.)
Withdrawn
Application number
EP92400947A
Other languages
English (en)
French (fr)
Inventor
Gérard Sevelinge
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.)
Areva NP SAS
Original Assignee
Framatome 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 Framatome SA filed Critical Framatome SA
Publication of EP0509876A1 publication Critical patent/EP0509876A1/de
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B02B1/00—Preparing grain for milling or like processes
    • B02B1/04—Wet treatment, e.g. washing, wetting, softening
    • B02B1/06—Devices with rotary parts

Definitions

  • the present invention relates to a device for treating vegetable grains.
  • the present invention finds its application in numerous grain processing industries, in particular of cereals such as, for example, wheat, barley or oat grains for the milling industry.
  • a humidifier is used which makes it possible to bring in the additional water necessary to reach the interior of the kernel of the grains and to obtain an appropriate hardness of the cereals with a view to their grinding.
  • Humidifiers hitherto used in the milling industry are generally constituted by a rotary tank in which is placed an endless screw for brewing grains.
  • This worm has means for spraying water to moisten the grains during brewing.
  • this type of humidifier has drawbacks which mainly reside in the fact that it does not make it possible to guarantee that all the grains have been wetted and consequently to obtain the desired grind during the grinding of the grains.
  • the humidity level is not adaptable depending on the nature of the grains.
  • the object of the present invention is to eliminate these drawbacks by proposing a device which makes it possible to easily vary the moisture content of the grains. depending on the nature of the grains to be treated and moisten these grains evenly to obtain an appropriate hardness for their grinding.
  • Fig. 1 there is shown a device for treating cereal grains, such as for example wheat, barley or oat grains for the milling industry.
  • This treatment device comprises a casing 1 provided at its upper part with grain supply means.
  • feed means are formed by a pouring funnel 2 passing through the casing 1 and of convergent shape to channel the grains in the direction of means for distributing said grains located below and in the axis of this pouring funnel 2.
  • the grain distribution means comprise a centrifugal wheel 3 fixed at the end of a motor shaft 4, itself driven in rotation by conventional means not shown.
  • the centrifugal wheel 3 comprises, on the one hand a central chamber 3a placed in the axis of the wheel and supplied with grain by the pouring funnel 2 and, on the other hand, at least one ejection channel 3b oriented along a direction perpendicular to the wheel 3, communicating with said chamber 3a and opening at the periphery of said wheel.
  • the grain distribution means also comprise a guide tube 5 of cylindrical shape, arranged concentrically with respect to the centrifugal wheel 3 and surrounding said centrifugal wheel.
  • the guide tube 5 delimits an annular space 6 with a deflector 7 arranged coaxially inside said guide tube 5.
  • the generally cylindrical deflector 7 is closed at the top by a conical roof 7a, the point of which is directed towards the centrifugal wheel 3.
  • the annular space 6 includes an outlet 8 directed downwards from the casing 1 and equipped with a grid 9 placed horizontally, thus materializing a fixed connection between the guide tube 5 and the deflector 7.
  • the device comprises means for humidifying the grains constituted by a water spraying wheel 10 disposed below the outlet 8 of the annular space 6 and in the axis of the centrifugal wheel 3.
  • This spraying wheel 10 is mounted to rotate freely at the end of a pipe 11 of water supply which flows inside the casing 1 to limit changes in direction.
  • the last section of this piping 11 is arranged vertically and positioned axially with respect to the main axis of said spraying wheel 10, so that it can, on the one hand, be maintained in a horizontal position and, on the other hand, be free to rotate.
  • the spraying wheel 10 is mounted at the end of the piping 11 by means of a system comprising thrust ball bearings 12 and a threaded ring 13.
  • Seals 14 are interposed between the wheel 10, the piping 11 and the threaded ring 13.
  • the spraying wheel 10 is fixedly mounted on the end of the supply pipe 11.
  • the spraying wheel 10 has a central recess 10a (FIG. 2) into which opens, on the one hand, the water supply pipe 11 and, on the other hand, at least two water circulation channels 10b provided radially in the thickness of said wheel 10 and distributed symmetrically.
  • each channel 10b is provided with an atomizing nozzle 15, the passage section of which is different from that of the channel 10b located upstream.
  • the device comprises means for wringing out the grains which consist of a tank 16 driven in rotation and situated in the axis of the centrifugal wheel 3 and of the spraying wheel 10.
  • This tank 16 has a diameter greater than the diameter of the guide tube 5 surrounding the centrifugal wheel 3 and is provided with a circular flat bottom 16a surmounted of a tubular element 16b forming a grain storage area.
  • the tubular element 16b extends to near the outlet 8 of the annular space 6.
  • the spraying wheel 10 is therefore placed inside the wiping tank 16.
  • the tubular element 16b of the tank 16 comprises, in the lower part, at least one row of equidistant holes 16c, for the evacuation of the water from said tank 16.
  • the wringing tank 16 is associated with water recovery means which are constituted by a fixed tank 17.
  • This recovery tank 17 comprises, on the one hand, a flat bottom 17a disposed below and at a determined distance from the flat bottom 16a of the wringing tank 16 and, on the other hand, a tubular element 17b arranged concentrically with the tubular element 16b of said wiping tank 16 and providing with the latter a free space 18 communicating with the interior of the wiping tank 16 through the holes 16c.
  • the tank 17, called the recovery tank, has a nozzle 19 fixed on its bottom 17a, to which is connected a discharge pipe 20, itself connected to water recycling means.
  • the wringing tank 16 comprises, at its bottom 16a, a connection member of known type, not shown, on which the end of a motor shaft 21 is connected to form a rigid connection.
  • This drive shaft 21 has a cylindrical part 21a passing freely through a passage formed in the bottom 17a of the recovery tank 17.
  • the motor shaft 21 also includes a first flange 21b whose annular section rests on the upper face of a guide ring 22, itself fitted into a bore provided for this purpose in a hub 23.
  • the guide ring 22 is traversed by the motor shaft 21, the lower end of which is connected to a means 24 for driving said shaft 21 in rotation and thus for the wringing tank 16.
  • a second flange 21c attached to the drive shaft 21, disposed opposite the first flange 21b thus limits the axial movement of said drive shaft 21 relative to the hub 23 within compatible tolerances for ideal operation.
  • the recovery tank 17 is bolted via its bottom 17a to the flange of the hub 23 and is thus held in a fixed position.
  • the hub 23 is held integral with the casing 1 by a set of symmetrically distributed ribs 25.
  • the casing 1 has at its lower part an airlock 26 profiled in a cone converging in the direction of a hopper 27 for discharging the moistened grains.
  • the casing 1 comprises at the outlet airlock 26, a means 40 for measuring the moisture content of the grains.
  • This measurement means 40 is for example of the infrared type and makes it possible to refine the water flow in the spraying wheel 10 and / or the speed of rotation of the wringing tank 16 as a function of the moisture content of the grains. thus measured.
  • the means for recycling the water recovered in the recovery tank 17 comprise a filter provided on the discharge pipe 20 and a water tank 29 comprising, on the one hand, a level regulator 30 and, on the other hand, water heating means constituted for example by a coil 33.
  • the recycling means also comprise, on the pipe 11 for supplying water to the centrifugal wheel 3, a motorized pump 31 and an adjustment valve 32.
  • the humidification of the cereal grains is carried out as follows.
  • the previously cleaned cereal grains that is to say removed from all the impurities, are introduced into the pouring funnel 2 which feeds the centrifugal wheel 3.
  • This centrifugal wheel 3 is rotated by the shaft 4 so that the centrifugal effect thus created acts on the grains and drives them through the ejection channels 3b.
  • This output flow rate can be modified at will by acting directly on the speed of rotation of the centrifugal wheel 3.
  • This possibility of intervention is essential, because it makes it possible to act on the time required for grain transfer according to the nature of the grains to be treated and also to adjust the volume of the grains to be humidified according to the performance available to the means. humidification and this to reach the kernel of these grains.
  • the cereal grains pass through the annular space 6 determined by the guide tube 5 and the deflector 7 and fall in the form of a more or less dense rain, in the direction of the water mist created by the dynamic effect of the wheel. 10 spray with spray nozzles 15.
  • the spraying wheel 10 is rotated under the effect of the water entering the circulation channels 10b and is fed from the tarpaulin 29 through the piping 11, the motorized pump 31 and the adjustment valve 32.
  • This wringing tank 16 is rotated at a certain speed by means of the motor shaft 21 and the drive means 24, which has the effect of promoting the creation of a storage slope T, composed cereal grains, which is in the form of a cone converging towards the bottom 16a, and whose outer surface is, on a thin layer, automatically regenerated.
  • the water recovered in the tank 17 is evacuated by the tap 19 into the water tank 29 via the piping 20 and the filter 28.
  • the water recovered and returned by the piping 11 to the spraying wheel 10 is heated by the coil 33 which improves its diffusion in the heart of the kernel of grains.
  • the treatment device according to the present invention is composed of a set of means each having a specificity which is found to be integrated in the course of the humidification process of the cereal grains, making it possible to adjust the amount of water deposited to the grain surface by combining both the water flow regulated by the valve 32 and the speed of rotation of the spin tank 16.
  • each parameter i.e. the grain flow rate through the centrifugal wheel, the mist density through the spray wheel, the speed of rotation of the spin tank, can be adjusted separately, for example depending on the nature of the grains to be treated or the type of cereals so as to obtain, in all cases, a uniform humidification and to reach the kernel of the grains and thus an ideal grind.
  • the device according to the present invention finds its application in all forms of industry for treating vegetable grains, in particular cereal grains for the milling industry.

Landscapes

  • Cereal-Derived Products (AREA)
  • Adjustment And Processing Of Grains (AREA)
EP92400947A 1991-04-16 1992-04-03 Behandlungsvorrichtung für Körner und Verwendung dieser Vorrichtung Withdrawn EP0509876A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9104651 1991-04-16
FR9104651A FR2675400A1 (fr) 1991-04-16 1991-04-16 Dispositif de traitement de grains vegetaux et utilisations de ce dispositif.

Publications (1)

Publication Number Publication Date
EP0509876A1 true EP0509876A1 (de) 1992-10-21

Family

ID=9411891

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92400947A Withdrawn EP0509876A1 (de) 1991-04-16 1992-04-03 Behandlungsvorrichtung für Körner und Verwendung dieser Vorrichtung

Country Status (5)

Country Link
EP (1) EP0509876A1 (de)
CN (1) CN1070130A (de)
AU (1) AU1408692A (de)
CA (1) CA2066107A1 (de)
FR (1) FR2675400A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994008717A1 (de) * 1992-10-17 1994-04-28 Steinmetz-Patent-Müllerei GmbH & Co. KG Verfahren zur behandlung von getreidevollkorn

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105397918B (zh) * 2015-10-31 2018-05-15 周俊良 混凝土搅拌机
CN112387686B (zh) * 2020-10-27 2022-04-08 松谷屋食品(安徽)有限公司 一种面粉加工用小麦清洗装置及清洗方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1327444A (en) * 1918-03-22 1920-01-06 Phillips Francis Lewellyn Grain-pickler
GB528286A (en) * 1939-05-03 1940-10-25 Thomas Robinson & Son Ltd Improvements relating to the spraying or moistening of granular, powdered and other materials
GB560731A (en) * 1942-12-21 1944-04-18 Thomas Robinson & Son Ltd Improvements in machines for spraying or moistening granular and powdered materials
US2964408A (en) * 1955-04-25 1960-12-13 Chicago Bridge & Iron Co Process for tempering cereal grains
GB866954A (en) * 1958-12-22 1961-05-03 Thomas Robinson & Son Ltd Improved machine for washing and stoning cereal grain
US3747511A (en) * 1971-07-16 1973-07-24 L Palyi Device for humidifying corn
DE2346527A1 (de) * 1972-11-16 1974-05-22 Fortschritt Veb K Kombinierte getreide - wasch- und trockenanlage
FR2540746A1 (fr) * 1983-02-15 1984-08-17 Giai Gilbert Humidificateur helicoidal intensif pour cereales

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1327444A (en) * 1918-03-22 1920-01-06 Phillips Francis Lewellyn Grain-pickler
GB528286A (en) * 1939-05-03 1940-10-25 Thomas Robinson & Son Ltd Improvements relating to the spraying or moistening of granular, powdered and other materials
GB560731A (en) * 1942-12-21 1944-04-18 Thomas Robinson & Son Ltd Improvements in machines for spraying or moistening granular and powdered materials
US2964408A (en) * 1955-04-25 1960-12-13 Chicago Bridge & Iron Co Process for tempering cereal grains
GB866954A (en) * 1958-12-22 1961-05-03 Thomas Robinson & Son Ltd Improved machine for washing and stoning cereal grain
US3747511A (en) * 1971-07-16 1973-07-24 L Palyi Device for humidifying corn
DE2346527A1 (de) * 1972-11-16 1974-05-22 Fortschritt Veb K Kombinierte getreide - wasch- und trockenanlage
FR2540746A1 (fr) * 1983-02-15 1984-08-17 Giai Gilbert Humidificateur helicoidal intensif pour cereales

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1994008717A1 (de) * 1992-10-17 1994-04-28 Steinmetz-Patent-Müllerei GmbH & Co. KG Verfahren zur behandlung von getreidevollkorn
US5516048A (en) * 1992-10-17 1996-05-14 Steinmetz-Patent-Mullerei Gmbh & Co. Kg Process for treatment of whole-wheat cereals

Also Published As

Publication number Publication date
CN1070130A (zh) 1993-03-24
CA2066107A1 (fr) 1992-10-17
AU1408692A (en) 1992-10-22
FR2675400A1 (fr) 1992-10-23

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