DE19611528C1 - On-line viscosity determination and control by measurement of current supplied to mixer motor - Google Patents

On-line viscosity determination and control by measurement of current supplied to mixer motor

Info

Publication number
DE19611528C1
DE19611528C1 DE1996111528 DE19611528A DE19611528C1 DE 19611528 C1 DE19611528 C1 DE 19611528C1 DE 1996111528 DE1996111528 DE 1996111528 DE 19611528 A DE19611528 A DE 19611528A DE 19611528 C1 DE19611528 C1 DE 19611528C1
Authority
DE
Germany
Prior art keywords
viscosity
measurement
mixer
measured
control
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 - Fee Related
Application number
DE1996111528
Other languages
German (de)
Inventor
Uwe-Joerg Hoppe
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.)
AUMARIT DACHPAPPEN und BITUMEN
Original Assignee
AUMARIT DACHPAPPEN und BITUMEN
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 AUMARIT DACHPAPPEN und BITUMEN filed Critical AUMARIT DACHPAPPEN und BITUMEN
Priority to DE1996111528 priority Critical patent/DE19611528C1/en
Application granted granted Critical
Publication of DE19611528C1 publication Critical patent/DE19611528C1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D24/00—Control of viscosity
    • G05D24/02—Control of viscosity characterised by the use of electric means
    • 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
    • G01N11/10—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material
    • G01N11/14—Investigating flow properties of materials, e.g. viscosity, plasticity; Analysing materials by determining flow properties by moving a body within the material by using rotary bodies, e.g. vane
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
    • G05D11/00—Control of flow ratio
    • G05D11/02—Controlling ratio of two or more flows of fluid or fluent material
    • G05D11/13—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means
    • G05D11/135—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture
    • G05D11/136—Controlling ratio of two or more flows of fluid or fluent material characterised by the use of electric means by sensing at least one property of the mixture by sensing the viscosity
    • 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
    • G01N33/42—Road-making materials

Abstract

This method determines the viscosity of mixtures, in the mixer, during operation. Normal viscosity determination is used whilst varying viscosity as a function of mixing ratio. The ratio is altered until the desired viscosity is reached, as measured by the laboratory equipment. At this point in time, the current consumption of the drive motor for the mixer agitator is measured. This is laid down as a basis for the desired value in the manufacture of following batches.

Description

Die Erfindung betrifft ein Verfahren zur Viskositätsbestim­ mung verschiedener Mischungen in einem Mischer während des Mischvorganges.The invention relates to a method for determining viscosity Mixing different mixtures in a mixer during the Mixing process.

Die Bestimmung der Viskosität von Mischungen und Emulsionen, wie Bitumenemulsionen, erfolgte bisher in der Form, daß diesen laufend Proben entnommen und im Labor getestet wurden. Dort wird die Viskosität beispielsweise mit dem "Englerischen Viskosimeter" oder mit dem "Konsistometer von Höppner" ermittelt, indem die Ausflußzeit der zu prüfenden Flüssigkeit in das Verhältnis zum Wasserwert gesetzt wird.Determining the viscosity of mixtures and emulsions, like bitumen emulsions, was previously carried out in the form of these samples were taken continuously and tested in the laboratory. There the viscosity is, for example, with the "English Viscometer "or with the" Consistometer from Höppner " determined by the outflow time of the liquid to be tested is related to the water value.

Das Ergebnis dieser Untersuchung dient dazu, die Mischung richtig einzustellen, d. h. die notwendige Wassermenge oder die Zugabe von Verdickungsmitteln zu korrigieren.The result of this investigation serves the mixture set correctly, d. H. the amount of water required or correct the addition of thickeners.

Da die Zuschlagstoffe je nach Hersteller in ihrer Struktur und im Feuchtigkeitsgehalt variabel sind, wirkt sich dies auf die Viskosität der Mischungen aus, so daß bei jeder Mischung erneut durch Entnahme von Proben die Viskosität festzustellen ist.Because the aggregates depending on the manufacturer in their structure and are variable in moisture content, this affects on the viscosity of the mixtures, so that with each Mix again the viscosity by taking samples can be determined.

Gemäß US-Patent 2.237 743 ist bekannt, daß mittels rotierender Flächen die Viskosität von Flüssigkeiten bestimmt werden kann. Dabei wird ein Motor verwendet, der mit konstanter Geschwindigkeit die rotierenden Flächen antreibt. Zu diesem Zweck ist ein gesonderter Schaltkreis erforderlich. Zusätzlich dazu sind parallel liegende starre Scheiben erforderlich, die diese Art der Messung ermöglichen. According to US Patent 2,237,743 it is known that by means of rotating surfaces the viscosity of liquids can be determined. A motor is used the rotating at a constant speed Drives surfaces. For this purpose is a separate one Circuit required. In addition to that are parallel lying rigid disks required that this type enable the measurement.  

Dieses System hat den Nachteil, daß zusätzlich in die zu messende Flüssigkeit rotierende Flächen und feststehende Scheiben eingebracht werden müssen. Es ist weiter ein Antriebsmotor mit Steuerung erforderlich.This system has the disadvantage that in addition liquid to be measured rotating surfaces and fixed Disks must be inserted. It is still a Drive motor with control required.

Die DAS 11 30 205 beinhaltet ein Verfahren und eine Anordnung zur gleichzeitigen Messung von Viskositäts- und Elastizitätsänderungen eines Stoffes während des Ablaufes der Stoffumwandlungen chemischer oder physika­ lischer Art, wobei das Reaktionsdrehmoment eines in der Prüfmasse umlaufenden Rührers nach periodischen Arbeitspausen jeweils mindestens zweimal nacheinander gemessen wird. Dabei ist erforderlich, daß zusätzlich ein Meßmotor mit Zuschaltung zur Messung in mehrmaligen Arbeitspausen eingesetzt werden muß.DAS 11 30 205 includes one method and one Arrangement for the simultaneous measurement of viscosity and changes in elasticity of a substance during the Chemical or physical transformation processes lical type, the reaction torque being one in the test mass of rotating stirrer according to periodic Work breaks at least twice in succession is measured. It is necessary that in addition a measuring motor with connection for measurement in multiple Work breaks must be used.

Die Erfindung stellt sich die Aufgabe, ein Verfahren zu entwickeln, mit dem es möglich ist, die Viskosität ver­ schiedener Mischungen während des Mischvorgangs optimal einzustellen.The object of the invention is to provide a method develop with which it is possible to ver different mixtures optimally during the mixing process adjust.

Dies wird erfindungsgemäß durch den kennzeichnenden Teil des Patentanspruches gelöst.This is according to the invention by the characterizing part of the claim solved.

Die Erfindung wird nachstehend anhand eines Ausführungs­ beispieles näher erläutert.The invention is based on an embodiment example explained in more detail.

Die Herstellung von Bitumenemulsionen erfordert die exakte Einhaltung vorgegebener Rezepturen. Die Struktur und der Feuchtigkeitsgehalt der verwendeten Zuschlagstoffe weisen je nach Herstellung Toleranzen auf. Während des Mischvor­ ganges arbeiten die im Mischer befindlichen Rührwerke mit unterschiedlichen Drehzahlen, die mit den Drehzahlen der Antriebsmotore korrespondieren. Durch die Zugabe von beispielsweise Wasser oder Verdickungsmitteln in entspre­ chender Menge wird die optimale Viskosität eingestellt und mittels einer Laboranalyse ermittelt. Jetzt wird die Stromaufnahme der Antriebsmotore gemessen und festgehalten. Diese Messung dient als Ausgangspunkt für weitere Mischungen von gleicher Rezeptur, ohne daß dadurch laufende Probe­ entnahmen erforderlich sind. Weicht der Wert der Stromauf­ nahme vom Ausgangswert ab, so wird die optimale Viskosität durch Zugabe von Wasser oder Verdickungsmitteln wieder­ hergestellt.The production of bitumen emulsions requires the exact Compliance with specified recipes. The structure and the Show moisture content of the additives used  depending on the manufacturing tolerances. During the mixing process ganges work with the agitators in the mixer different speeds with the speeds of the Drive motors correspond. By adding for example, water or thickeners in correspondence Depending on the quantity, the optimal viscosity is set and determined by means of a laboratory analysis. Now that is Current consumption of the drive motors measured and recorded. This measurement serves as the starting point for further mixtures of the same recipe without running sample withdrawals are required. Deviates the value of the current decrease from the initial value, so the optimal viscosity by adding water or thickeners again produced.

Dieses Verfahren kann für die Herstellung der verschiedensten Mischungen, beispielsweise in der Lebensmittelindustrie, angewendet werden, wobei der gemessene Wert der Stromaufnahme der Antriebsmotoren der Rührwerke als Optimierungsmaß bzw. als Wert der Viskosität der Mischung verwendet wird.This process can be used for the production of the most varied Mixtures, for example in the food industry, be applied, the measured value of the current consumption the drive motors of the agitators as an optimization measure or is used as the value of the viscosity of the mixture.

Es ist auch weiterhin möglich, durch Einsatz eines separaten Rührwerks mit Antriebsmotor dessen gemessenen Wert der Stromaufnahme für die Bestimmung der Viskosität zu verwenden. Damit dient dieses Rührwerk lediglich der Viskositäts­ bestimmung.It is still possible to use a separate one Agitator with drive motor whose measured value Use current draw to determine viscosity. This agitator is only used for viscosity determination.

Claims (1)

Verfahren zur Viskositätsbestimmung verschiedener Mischungen in einem Mischer während des Mischvorganges, dadurch gekennzeichnet, daß nach Vorliegen einer üblichen Viskositätsbestimmung die der Einstellung der Mischung durch Variation des Mischungsverhältnisses der Ausgangsstoffe dient, wobei das Mischungsverhältnis zunächst solange variiert wird, bis die gewünschte Viskosität mittels Laborviskositäts­ messungen gemessen werden kann und zu diesem Zeitpunkt die Stromaufnahme der Antriebsmotore der Mischerrühr­ werke erfaßt und als Sollwert der Herstellung weiterer Mischungen zugrunde gelegt wird.Method for determining the viscosity of various mixtures in a mixer during the mixing process, characterized in that, after a conventional viscosity determination has been made, the adjustment of the mixture is carried out by varying the mixing ratio of the starting materials, the mixing ratio initially being varied until the desired viscosity is measured by means of laboratory viscosity measurements can be and at this time the current consumption of the drive motors of the mixer agitators is recorded and is used as the target value for the production of further mixtures.
DE1996111528 1996-03-23 1996-03-23 On-line viscosity determination and control by measurement of current supplied to mixer motor Expired - Fee Related DE19611528C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1996111528 DE19611528C1 (en) 1996-03-23 1996-03-23 On-line viscosity determination and control by measurement of current supplied to mixer motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1996111528 DE19611528C1 (en) 1996-03-23 1996-03-23 On-line viscosity determination and control by measurement of current supplied to mixer motor

Publications (1)

Publication Number Publication Date
DE19611528C1 true DE19611528C1 (en) 1997-07-24

Family

ID=7789205

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1996111528 Expired - Fee Related DE19611528C1 (en) 1996-03-23 1996-03-23 On-line viscosity determination and control by measurement of current supplied to mixer motor

Country Status (1)

Country Link
DE (1) DE19611528C1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19930684A1 (en) * 1999-07-02 2001-01-18 Windmoeller & Hoelscher Determination of the viscosity of a fluid pumped using an electric pump, in a device such as a printer, by measurement of pump power consumption and relating of this to fluid viscosity for use in print quality control
WO2001053797A1 (en) * 2000-01-20 2001-07-26 Convotherm Elektrogeräte GmbH Method for determining the proportion of a gas constituent contained in a gas mixture

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2237743A (en) * 1938-05-23 1941-04-08 Insulation Dev Corp Viscosimeter
DE1130205B (en) * 1958-05-07 1962-05-24 Bayer Ag Process and arrangement for the simultaneous measurement of viscosity and elasticity changes of a substance during the course of the chemical or physical transformations

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2237743A (en) * 1938-05-23 1941-04-08 Insulation Dev Corp Viscosimeter
DE1130205B (en) * 1958-05-07 1962-05-24 Bayer Ag Process and arrangement for the simultaneous measurement of viscosity and elasticity changes of a substance during the course of the chemical or physical transformations

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19930684A1 (en) * 1999-07-02 2001-01-18 Windmoeller & Hoelscher Determination of the viscosity of a fluid pumped using an electric pump, in a device such as a printer, by measurement of pump power consumption and relating of this to fluid viscosity for use in print quality control
DE19930684C2 (en) * 1999-07-02 2001-10-11 Windmoeller & Hoelscher Method and device for processing a viscous medium
WO2001053797A1 (en) * 2000-01-20 2001-07-26 Convotherm Elektrogeräte GmbH Method for determining the proportion of a gas constituent contained in a gas mixture

Similar Documents

Publication Publication Date Title
US7384180B2 (en) Method and apparatus for manufacturing concrete mass
DD252310A5 (en) DEVICE AND METHOD FOR KNEADING BREADED AND THE SAME
DE2909087C2 (en) Device for determining the flow properties of viscous or pasty substances and application of the device for determining the tack
DE10052548A1 (en) Device for determining the end of the processing time of hardenable masses
EP0169252B1 (en) Method and apparatus for measuring the viscosity of synthetic resins
DE19611528C1 (en) On-line viscosity determination and control by measurement of current supplied to mixer motor
DE102005007111A1 (en) Device for on-line rotation / oscillation rheometry
DE102005048184B4 (en) Method for rapid testing of cereal, meal and meal quality by measuring gluten aggregation
DE102015225274B3 (en) laboratory mixers
DE19752221C2 (en) Process for measuring the viscosity of mash
EP0216994B1 (en) Method for the determination of the gelifying time of a reaction resin
DE10148567A1 (en) Method and device for examining the hardening of curable formulations
DE102012218814A1 (en) Method of determining homogeneity of liquid, pasty or creamy formulation, involves mixing formulation in sample vessel, and comparing measured values before and after mixing of formulation
AT503844A1 (en) DEVICE FOR MEASURING THE ADHESION OF A RHEOLOGICAL LIQUID
DE19644681A1 (en) Internal mixer, especially for visco:elastic materials and rheometric measurement of material
EP0397235A2 (en) Apparatus for determining the solidification point of a plaster-water mixture
DE102019216892B3 (en) Rheology lance
DE3006690C2 (en) Process for the defined and reproducible delivery of partial quantities of the mix of a transport mixer
DE3734215C2 (en)
DE3113785A1 (en) Method and device for determining the consistency of mixed concrete
DE4020253A1 (en) Assessing characteristics of deformable mass
DE19828667A1 (en) Determination of properties of flour proteins
DE2827326C3 (en)
AT394905B (en) Method and equipment for measuring the properties, particularly the ability to be compacted, of a stiff, castable compound
DE10358020B3 (en) Device for paper production

Legal Events

Date Code Title Description
8100 Publication of the examined application without publication of unexamined application
D1 Grant (no unexamined application published) patent law 81
8322 Nonbinding interest in granting licenses declared
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee