EP2027454A1 - Procédé de détection de propriétés définies d'un produit coulant - Google Patents

Procédé de détection de propriétés définies d'un produit coulant

Info

Publication number
EP2027454A1
EP2027454A1 EP07723599A EP07723599A EP2027454A1 EP 2027454 A1 EP2027454 A1 EP 2027454A1 EP 07723599 A EP07723599 A EP 07723599A EP 07723599 A EP07723599 A EP 07723599A EP 2027454 A1 EP2027454 A1 EP 2027454A1
Authority
EP
European Patent Office
Prior art keywords
cone
optical
container
pourable
fiber
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Withdrawn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
EP07723599A
Other languages
German (de)
English (en)
Inventor
Joachim Mannhardt
Franz Faehler
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.)
J & M Analytik AG
Pharma Test Apparatebau GmbH
Original Assignee
J & M Analytische Mess & Regeltechnik GmbH
J & M Analytische Mess- und Regeltechnik GmbH
Pharma Test Apparatebau GmbH
PHARMA TEST APPBAU 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 J & M Analytische Mess & Regeltechnik GmbH, J & M Analytische Mess- und Regeltechnik GmbH, Pharma Test Apparatebau GmbH, PHARMA TEST APPBAU GmbH filed Critical J & M Analytische Mess & Regeltechnik GmbH
Publication of EP2027454A1 publication Critical patent/EP2027454A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N11/00—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/0091—Powders
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/10—Devices for withdrawing samples in the liquid or fluent state
    • G01N2001/1006—Dispersed solids

Definitions

  • the invention relates to a device for determining certain properties of a pourable Guts after further defined in the preamble of claim 1.
  • the invention further relates to a system for determining certain properties of a pourable Guts, with a plate for receiving the pourable Guts in the form of a cone ,
  • Devices according to the invention are known from the general state of the art.
  • a fixed amount of pourable material in particular powder
  • the powder can flow or fall on a plate located below the container and collects there in the form of a cone.
  • the plate has a fixed diameter and is mounted on a weighing device to determine the mass and density of the pourable material.
  • the excess material falls at the edge of the plate down into a collecting container.
  • suitable sensors can be used, whereby the parameters recorded by them are displayed and logged. After the measurement, the plate with the cone located on it is removed, emptied and cleaned. The device can after the Inserting the empty plate can be used for the next measurement.
  • the at least one optical waveguide with the at least one illumination fiber and the at least one detection fiber it is possible to determine not only the known purely physical properties of the free-flowing material, but also its chemical and morphological properties, such as moisture content, specific concentrations or concentrations. and / or mixing ratios, in particular active substance concentrations, the particle size or the identity of the pourable material and information on the homogeneity of the free-flowing material.
  • this is no separate device necessary, but the properties mentioned can be determined during the determination of the general physical parameters, such as flow time, flow volume, cone volume, cone height, mass or density.
  • the at least one optical light guide is arranged so that the illumination fiber transmits the optical radiation from the container to the pourable material during flow of the sch ⁇ ttflowere Guts.
  • a particularly advantageous embodiment consists in that the container has an opening which can be closed with a flap, which can be brought into a position in which the optical radiation emitted by the illumination fiber of the at least one optical waveguide for the purpose of white balance on a Reference surface of the flap hits.
  • Such a white balance is particularly useful for obtaining accurate measurement data, with no additional expense being required by the described embodiment, since the flap closing the opening of the container is used to dispense the bulk material. enabled Guts must be opened anyway, which can be dispensed with additional drive devices. Before the start of a measurement, such an automatic white balance can therefore be carried out in a particularly simple manner.
  • the at least one optical light guide is arranged such that the illumination fiber transmits the optical radiation to the free-flowing material located in the container. In this way, the pourable material can thus be measured while it is still in the container.
  • the at least one optical light guide is arranged so that the illumination fiber transmits the optical radiation to the cone located on the plate. In this way, the pourable material is thus measured while it is in the form of a cone on the plate.
  • a particularly accurate measurement associated with a simple structure of the light guide results when, in an advantageous development of the invention, the at least one optical light guide is arranged so that the optical radiation impinges at least approximately perpendicularly on the cone.
  • a plurality of light guides are attached to the holding device in such a way that they at least partially surround the cone.
  • a plurality of points can be measured at the same time over the lateral surface of the cone, so that averaged information regarding the chemical and / or morphological data can be obtained.
  • the holding device is adjustable in the vertical direction, an optimum distance of the same from the free-flowing material can always be ensured even if the arrangement of the at least one light guide is rigid in the horizontal direction.
  • From claim 13 results in a system for determining certain properties of a pourable Guts, with a plate for receiving the pourable Guts in the form of a cone, with at least one means for determining a physical parameter, such as flow time, flow volume, cone volume, cone height, mass and / or bulk density, and with the apparatus described above for determining certain properties of the bulk material.
  • a physical parameter such as flow time, flow volume, cone volume, cone height, mass and / or bulk density
  • Such a device can thus physical properties, such as flow time, flow volume, cone volume, cone height, mass or density, as well as optically determinable variables, such as moisture content, concentrations, concentration or mixing ratios, particle size or identity of the pourable Guts in one and the same device determine.
  • a holding device for receiving the pourable Guts and outputting the same is provided on the plate, wherein in particular the holding device for the at least one optical fiber is attached to the holding device for the free-flowing material.
  • Fig. 1 is a side view of the device according to the invention.
  • Fig. 2 is a more detailed view of the device of Fig. 1;
  • Fig. 3 is an enlarged view according to the detail III of Fig. 2;
  • FIG. 4 is a plan view of the holding device of the device according to the invention.
  • FIG. 5 shows an alternative embodiment of the device according to the invention in a first view
  • Fig. 6 is a view of the device according to the arrow VI of Fig. 5;
  • Fig. 7 shows the device of Fig. 5 in a different position.
  • the container 1 shows a plant 1 for determining certain properties of a pourable material 3, in particular a powder, located in a container 2.
  • the container 2 is located on a holding device 4 and has a closable opening 5, through which the free-flowing material 3 can fall or flow onto a plate 6 located below the container 2.
  • the plate 6 is arranged on a connecting rod 7 on a collecting container 8, wherein in the present If there is a weighing device 9 between the collecting container 8 and the connecting rod 7.
  • pourable material 3 When the pourable material 3 falls through the opening 5 of the container 2 on the plate 6, it forms a cone 3a, wherein the excess flowable Good 3 falls over the edge of the plate 6 into the receptacle 8.
  • certain physical parameters of the pourable Guts 3 such. B. flow time, flow volume, cone volume, cone height, mass or density of the pourable Guts 3, are determined. These parameters determine the properties of the free-flowing material 3 and its behavior during further processing.
  • One of the sensors for example, the weighing device 9.
  • the detected parameters can be displayed on a display, not shown, and logged in a storage device, also not shown.
  • a further device 10 which has a holding device 11 and at least one mounted on the holding device 11 optical light guide 12 ,
  • the optical waveguide 12 in turn has, as can be seen in FIG. 3, at least one illumination fiber 13 and at least one detection fiber 14.
  • the illumination fiber 13 emits optical radiation to the cone 3a of the pourable material 3 forming on the plate 6 or already located thereon, which cone is reflected by the cone 3a.
  • the detection fiber 14 is arranged so that it receives the optical radiation reflected by the cone 3a and transmits it to an evaluation device 15, which is indicated very schematically in FIG. 1, where the measured values are preferably further processed by software.
  • the methods for measuring the respective properties of the free-flowing material 3 are known per se and are therefore not explained in detail below.
  • the light guide 12 is arranged so that the optical radiation impinges at least approximately perpendicular to the lateral surface of the cone 3a.
  • optical radiation is not just about visible light. Rather, depending on the property to be measured or determined, the light guide 12 may be suitable for UV-VIS (visible UV light), NIR (near infrared), fluorescence or Raman spectroscopy or photometry.
  • the material of the respective light guide 12 is thus optimized for the respectively selected measurement method or the respective spectral range.
  • a plurality of optical light guides 12 are provided around the circumference of the cone 3 a, they can optionally operate according to different principles in each case, resulting in a device 10 which can be used very universally.
  • differently configured light guides 12 can be attached to one and the same holding device 11 in order to use different measuring methods.
  • FIG. 4 by way of example, seven light guides 12 distributed around the circumference of the cone 3a are shown, but of course any other suitable number is conceivable.
  • the holding device 11 which holds the at least one light guide 12, in the present case in the vertical direction, ie in the direction of the vertical extent of the cone 3a, adjustable, so that on the one hand several points in the longitudinal direction of the cone 3a can be measured and on the other hand always an optimal distance of the light guide 12 to the sch ⁇ ttrichen Good 3 is adjustable.
  • the holding device 11 could also be rotatable about a substantially vertical axis, so that with only one light guide 12 still different points on the circumference of the cone 3a could be measured. Furthermore, a tiltable around a substantially horizontal axis holding device 11 is possible.
  • a plurality of optical fibers 12 arranged one above the other in the vertical direction could also be provided so that a different distance to the cone 3a results for each of the optical fibers 12.
  • a further preferred embodiment of the holding device 11 includes a semi-circular design thereof, of course, other geometries can be used. Combinations of the different embodiments of the holding device 11 are possible.
  • the light guide 12 shown enlarged in Fig. 3 it could also be a fiber bundle, i. a plurality of illumination fibers 13 and / or a plurality of detection fibers 14, wherein in particular an embodiment with an illumination fiber 13 and a plurality of detection fibers 14 is to be preferred, since in this way a greater flexibility in terms of emitting the optical radiation is given.
  • FIGS. 5, 6 and 7 show a particularly preferred, alternative embodiment of the plant 1 and of the device 10 for determining the properties of the free-flowing material 3 present in the container 2.
  • various parts of the system 1 have been dispensed with in FIGS. 6 and 7, since they are essentially identical to the holding device 4 for the container 2 in the above-described exemplary embodiments.
  • the container is ter 2 also on the holding device 4 and has the closable opening 5, wherein in this case also a pivotable about an axis of rotation 16a, depending on its pivotal position, the opening 5 of the container 2 occlusive or releasing flap 16 is shown.
  • the plate 6, which is arranged on the connecting rod 7 on the collecting container 8.
  • the arranged between the collecting container 8 and the connecting rod 7 weighing device 9 is provided.
  • the device 10 shown in FIG. 5 furthermore has the at least one optical light guide 12, which in turn has the at least one illumination fiber 13 and the at least one detection fiber 14, which however can not be seen in FIGS. 5, 6 and 7. In that regard, it is therefore an essentially identical to the above-described systems 1 and devices 10 embodiment.
  • the optical waveguide 12 is arranged so that the illumination fiber 13, the optical radiation during the flow of the bulk material 3 from the container 2 on the plate 6 to the free-flowing material 3 sends, which by an arrangement of optical fiber 12 is achieved in the immediate vicinity of the opening 5 of the container 2.
  • the optical light guide 12 is attached to the holder 2 provided for the container 2 and thus in the immediate vicinity of the container 2.
  • the holding device 11 for the optical waveguide 12 corresponds to the holding device 4 for the container 2.
  • a reference surface 17 indicated in FIG. 5 only by means of a dashed line is mounted on the flap 16 for a white balance. stood the flap 16 is located directly in front of the optical light guide 12.
  • the flap 16 is in its closed position in a position in which emitted from the illumination fiber 13 of the optical waveguide 12 optical radiation meets the reference surface 17 of the flap 16, which can be used to perform a white balance.
  • a white balance can thus be carried out in a very simple manner, if appropriate before each measurement, in order to ensure the accuracy of the measured data.
  • flap 16 and reference surface 17 are coated to prevent particle adhesion and facilitate cleaning.
  • the free-flowing material 3 can flow out of the container 2 and thus flows past the optical fiber 12, which can thereby perform the measurements described above.
  • the optical waveguide 12 immediately after the opening 5 of the container 2, in addition to the measured values described above, a large part of the total quantity and thus a representative part of the total amount of free-flowing material 3 present in the container 2 can be determined.
  • the pourable material 3 is analyzed essentially only on its surface, since there is no radiation through the entire product beam.
  • FIG. 7 also shows a dust protection device 18 into which the reference surface 17 of the flap 16 is opened. Neten state of the flap 16 moves.
  • this dust protection device 18 which may be embodied for example in the form of a bag or the like, preferably a dust seal or the like and may be attached to the holding device 4, contamination of the reference surface 17 is prevented, so in the open state of the flap 16 in a protected position.
  • the optical waveguide 12 could also be attached to the container 2 in order to transmit the optical radiation to the free-flowing material 3 located in the container 2.
  • the wall of the container 2 could for example be provided with a window for the optical light guide 12.
  • optical light guide 12 is arranged on the underside of the flap 16 to measure in the closed state of the flap 16 located in the container 2 pourable Good 3, and in the pivoted, ie open state of Flap 16 to measure the flowing out of the opening 5 of the container 2 pourable Good 3. It is only necessary to ensure that the optical waveguide 12 does not hinder the movement of the flap 16.

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

Le dispositif (10) selon l'invention pour la détection de propriétés définies d'un produit coulant (3), qui circule depuis un récipient (5) sur une assiette (6) sensiblement plane et qui se rassemble sur l'assiette (6) sous forme d'un cône (3a), comporte au moins un guide de lumière (12) optique disposé sur un dispositif de support (11), le guide de lumière comportant au moins une fibre d'éclairage (13) et au moins une fibre de détection (14). La fibre d'éclairage (13) envoie un rayonnement optique au produit coulant (3). La fibre de détection (14) est disposée de telle sorte qu'elle reçoit le rayonnement optique réfléchi par le produit coulant (3).
EP07723599A 2006-05-15 2007-03-26 Procédé de détection de propriétés définies d'un produit coulant Withdrawn EP2027454A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006022894A DE102006022894A1 (de) 2006-05-15 2006-05-15 Vorrichtung zur Ermittlung bestimmter Eigenschaften eines schüttfähigen Guts
PCT/EP2007/002653 WO2007131571A1 (fr) 2006-05-15 2007-03-26 Procédé de détection de propriétés définies d'un produit coulant

Publications (1)

Publication Number Publication Date
EP2027454A1 true EP2027454A1 (fr) 2009-02-25

Family

ID=38226666

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07723599A Withdrawn EP2027454A1 (fr) 2006-05-15 2007-03-26 Procédé de détection de propriétés définies d'un produit coulant

Country Status (3)

Country Link
EP (1) EP2027454A1 (fr)
DE (1) DE102006022894A1 (fr)
WO (1) WO2007131571A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020118395A1 (fr) * 2018-12-13 2020-06-18 Vale S.A. Module automatique pour détermination de densité et procédé de détermination de densité
DE102021110037A1 (de) 2021-04-21 2022-10-27 Bayerische Motoren Werke Aktiengesellschaft Verfahren zur Bestimmung einer Dichte einer Schicht aus pulverförmigem Material

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4238840A (en) * 1967-07-12 1980-12-09 Formigraphic Engine Corporation Method, medium and apparatus for producing three dimensional figure product
US3665768A (en) * 1970-11-10 1972-05-30 Hosokawa Funtaikogaku Kenkyush Device of measuring fluid characteristic of powdered or granular materials
US4758729A (en) * 1987-08-28 1988-07-19 Spectra-Physics, Inc. Apparatus and method for measuring the included angle of a reflective cone
JP2636126B2 (ja) * 1993-01-29 1997-07-30 日機装株式会社 粉粒体の安息角自動計測装置、及び粉粒体の安息角全自動計測装置
DE19645923A1 (de) * 1996-11-07 1998-05-14 Bayer Ag Vorrichtung zur Bestimmung der Produktfeuchte und der Korngröße in einer Wirbelschicht
TW409183B (en) * 1997-06-25 2000-10-21 Hosokawa Micron Kk The method and the device for measuring the inclination angle of powder/grain material stack

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2007131571A1 *

Also Published As

Publication number Publication date
DE102006022894A1 (de) 2007-11-22
WO2007131571A1 (fr) 2007-11-22

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