DE19917471A1 - Control method for maintaining operational reliability on a screw extruder, used with viscous pastes combines and considers material input parameters and output parameters - Google Patents
Control method for maintaining operational reliability on a screw extruder, used with viscous pastes combines and considers material input parameters and output parametersInfo
- Publication number
- DE19917471A1 DE19917471A1 DE19917471A DE19917471A DE19917471A1 DE 19917471 A1 DE19917471 A1 DE 19917471A1 DE 19917471 A DE19917471 A DE 19917471A DE 19917471 A DE19917471 A DE 19917471A DE 19917471 A1 DE19917471 A1 DE 19917471A1
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- Germany
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- parameters
- data
- material input
- combines
- output parameters
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
- B30B11/245—Extrusion presses; Dies therefor using screws or worms using two or more screws working in different chambers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B17/00—Details of, or accessories for, apparatus for shaping the material; Auxiliary measures taken in connection with such shaping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B3/00—Producing shaped articles from the material by using presses; Presses specially adapted therefor
- B28B3/20—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded
- B28B3/22—Producing shaped articles from the material by using presses; Presses specially adapted therefor wherein the material is extruded by screw or worm
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/252—Drive or actuation means; Transmission means; Screw supporting means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/92—Measuring, controlling or regulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/005—Control arrangements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/22—Extrusion presses; Dies therefor
- B30B11/24—Extrusion presses; Dies therefor using screws or worms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92047—Energy, power, electric current or voltage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92085—Velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92085—Velocity
- B29C2948/92095—Angular velocity
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92209—Temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92228—Content, e.g. percentage of humidity, volatiles, contaminants or degassing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92247—Optical properties
- B29C2948/92257—Colour
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92009—Measured parameter
- B29C2948/92295—Errors or malfunctioning, e.g. for quality control
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92333—Raw material handling or dosing, e.g. active hopper or feeding device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92323—Location or phase of measurement
- B29C2948/92361—Extrusion unit
- B29C2948/9238—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92504—Controlled parameter
- B29C2948/92542—Energy, power, electric current or voltage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2948/00—Indexing scheme relating to extrusion moulding
- B29C2948/92—Measuring, controlling or regulating
- B29C2948/92819—Location or phase of control
- B29C2948/92857—Extrusion unit
- B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Press-Shaping Or Shaping Using Conveyers (AREA)
Abstract
Description
Die Erfindung betrifft ein Verfahren und eine Schaltungsanordnung zur Steuerung und Regelung zur Aufrechterhaltung der Betriebssicherheit an Schneckenpressen, vorzugsweise für Schneckenpressen zur Herstellung von Bauelementen aus pastösen Baustoffmaterialien. The invention relates to a method and a circuit arrangement for control and Regulation to maintain operational safety on screw presses, preferably for screw presses for the production of components from pasty Building materials.
Es ist allgemein bekannt, um die Betriebssicherheiten von Maschinen und die Verfahren, die mit diesen Maschinen realisiert werden, diese meßtechnisch zu überwachen und steuernd und regelnd auf die Funktionsfähigkeit der jeweiligen Maschinen einzuwirken. Dies wird in den meisten Fällen über Sensor- und Meldesysteme realisiert, die direkt an konkreten Orten bzw. Positionen der jeweiligen Maschine Parameter erfassen, um den Bedienenden der Maschine in die Lage zu versetzen, den Prozeßablauf anhand konkreter physikalischer Daten einzuschätzen bzw. zu führen. Diese Daten ergeben sich aus einer Vielzahl von Zusammenhängen in der Maschine, wobei die Daten Einzelinformationen sind, die an Prozeßführungsständen erfaßt und aufgezeichnet werden.It is well known to understand the operational safety of machinery and the procedures which are realized with these machines, to monitor them by measuring technology and to control and regulate the functionality of the respective machines. In most cases, this is implemented using sensor and signaling systems that are directly connected Concrete locations or positions of the respective machine parameters to determine the Operators of the machine in a position to put the process flow on the basis of concrete assess or maintain physical data. This data results from a Variety of relationships in the machine, the data individual information are recorded and recorded on process control stands.
Die bekannten Lösungen sind allerdings mit den Nachteilen behaftet, daß sie unmittelbar gewisse Betriebszustände erfassen, so daß auch regelnd bzw. steuernd auf den jeweiligen Prozeß eingewirkt werden kann, jedoch ist der Einsatz in Maschinen, die dickflüssige bzw. pastöse Materialien verarbeiten, wie Baustoffmaterialien zur Herstellung von Baustoffelementen, nicht geeignet, da nicht unmittelbar Bezug genommen werden kann auf die stofflichen Eigenschaften des zu fördernden Gutes.However, the known solutions have the disadvantages that they are immediate capture certain operating states, so that also regulating or controlling the respective Process can be affected, however, use in machines is viscous or process pasty materials such as building materials for the production of Building material elements, not suitable as it cannot be directly referred to on the material properties of the goods to be conveyed.
Es ist daher Aufgabe der vorliegenden Erfindung, ein Verfahren und eine Schaltungs anordnung zur Steuerung und Regelung für die Aufrechterhaltung der Betriebssicherheit an Schneckenpressen, vorzugsweise an Schneckenpressen zur Herstellung von Bauelementen aus pastösen Baustoffmaterialien, zu entwickeln, welches aus den stofflichen Betriebswerten und den Stoffumwandlungsprozessen Informationen aufnimmt, diese in technische Parameter umsetzt, um so auf die entsprechenden Einrichtungen des Herstellungsprozesses regel- und steuerbar einzuwirken.It is therefore an object of the present invention, a method and a circuit arrangement for control and regulation for maintaining operational safety on screw presses, preferably on screw presses for the production of Develop components made of pasty building materials, which from the material operating values and the material conversion processes, translates these into technical parameters, in order to ensure that the relevant facilities of the Manufacturing process controllable to act.
Erfindungsgemäß wird die Aufgabe durch die Merkmale des Anspruches 1 gelöst.According to the invention the object is achieved by the features of claim 1.
Die Unteransprüche geben vorteilhafte Ausgestaltungsmöglichkeiten hierzu an, mit denen sich zusätzliche Vorteile erzielen lassen. The subclaims indicate advantageous design options for this, with which additional benefits can be achieved.
So wurde erkannt, daß neben den allgemeinen physikalischen Parametern, die ein verarbeitungsgutgebundenes Verhalten der Maschine darstellen, auch gleichfalls das Material, welches mit dieser Maschine bearbeitet werden soll, die Funktion eines Maschinenteiles im Wirksystem der Gesamtheit eines Maschinensystems bzw. einer Maschine darstellt. So stellen Druck- und Förderschnecke, das Druckrohr und das gesamte Zugsystem einer derartigen Schneckenpresse einerseits den Wirkbereich des regelnden Systems dar, während das zu fördernde Material andererseits ein Wirksystem ist. Der gesamte Wirkungsgrad einer derartigen Schneckenpresse ändert sich mit zunehmender Temperatur, Veränderungen des Druckes und der Fließgeschwindigkeiten des Fördergutes und schließlich hat die Paßgenauigkeit der Bauteilkombination gleichfalls Einfluß auf den Wirkungsgrad. Somit wird mit dem vorgestellten Verfahren und der Schaltungsanordnung und -einrichtung eine Lösung vorgestellt, die Stoffwertänderungen, den Energieeintrag und den Bauteilverschleiß mit seinen Wirkungen erfaßt, bewertet und regelnd bzw. steuernd auf den Betriebszustand der Schneckenpresse einwirkt.So it was recognized that in addition to the general physical parameters, the one represent processing-related behavior of the machine, also that Material that is to be processed with this machine, the function of a Machine part in the active system of the entirety of a machine system or one Machine. This is how the pressure and conveyor screw, the pressure pipe and the entire train system of such a screw press on the one hand the effective range of regulating system, while the material to be conveyed on the other hand an active system is. The overall efficiency of such a screw press also changes increasing temperature, changes in pressure and flow rates of the material to be conveyed and finally the fit of the component combination Influence on efficiency. Thus, with the method presented and the Circuit arrangement and device presented a solution, the material changes, the energy input and component wear with their effects are recorded, evaluated and regulating or controlling the operating state of the screw press.
Das Ergebnis der Kontrolle, Auswertung und Anzeige des Istzustandes begründet eine stottbezogene Steuerung des Prozesses des Erkennens der Grenznutzungsdauer verschleißender Teile, und es gibt gleichfalls eine Information und Aufforderung zum technischen Service der Maschine. Dies wird über entsprechende Informations möglichkeiten in akustischer oder optischer Weise angezeigt, damit eventuelle Betriebs ausfälle rechtzeitig erkannt und somit notwendige Servicemaßnahmen eingeleitet werden können.The result of the control, evaluation and display of the actual state justifies one stott-related control of the process of recognizing the limit service life wearing parts, and there is also information and a request for technical service of the machine. This is about appropriate information Possibilities indicated in an acoustic or visual way, so that possible operation failures are recognized in good time and the necessary service measures are initiated can.
Mit nachfolgendem Ausführungsbeispiel soll die Erfindung näher erläutert werden.The invention will be explained in more detail with the following exemplary embodiment.
Die dazugehörige Zeichnung zeigt inThe accompanying drawing shows in
Fig. 1 ein komplettes Maschinensystem mit eingeordneter Schneckenpresse; . Figure 1 shows a complete machine system with the associated screw press;
Fig. 2 ein Diagramm der Stoffänderungstemperatur; Fig. 2 is a diagram of the fabric change temperature;
Aus der Fig. 1 ergibt sich ein gesamtes Maschinensystem zur Herstellung von Bau elementen in Form von Mauerziegel, Dachziegel und anderen Formbausteinen, deren Kernstück die Schneckenpresse 1 ist. Zur gesamten Anlage gehören neben der Schnecken presse 1 der Antrieb 8 für die Schneckenpresse 1, wobei zwischen dem Antrieb 8 und der Schneckenpresse 1 ein Getriebe 9 zwischengeschaltet ist. Ausgangsseitig der Schnecken presse 1 ist ein Meßgerät 4 vorgesehen, mittels dem die Geschwindigkeit des aus der Schneckenpresse 1 austretenden Material gemessen wird, wobei der Austritt des Materials als Strangvolumen 3 bezeichnet wird.From Fig. 1 there is an entire machine system for the production of construction elements in the form of masonry tiles, roof tiles and other shaped blocks, the core of which is the screw press 1 . The whole community includes in addition to the screw press 1, the drive 8 for the screw press 1, in which between the drive 8 and the screw press 1, a gearbox is interposed. 9 On the output side of the screw press 1 is provided a measuring device 4, by means of which the velocity of the exiting from the screw press 1 material is measured, whereby the outlet of the material is referred to as a strand volume. 3
Ferner gehören zur Anlage ein Menger 6 und eine Vakuumkammer 7, die der Schnecken presse 1 vorgeschaltet sind und die über einen gesonderten Motor 5 angetrieben werden.Furthermore, the system includes a quantity 6 and a vacuum chamber 7 , which are connected upstream of the screw press 1 and which are driven by a separate motor 5 .
Das Verfahren selbst ist so gestaltet, daß durch den Vergleich der Eingangs- Stoffparameter des Materials, wie Temperatur, Feuchte, Dichte, Farbe und weitere Parameter, diese mit den Stoffausgangsparametern, wie Energieeintrag zur Erreichung des stofflichen Ver- oder Bearbeitungszieles, der Erfassung des Maschinenwirkungsgrades durch Vergleich theoretischer und praktischer erreichten Be- oder Verarbeitungs geschwindigkeiten mit Änderung der physikalischen Größen, wie Temperatur, Feuchte, Farbe und Druck, bezogen auf den Vergleich zwischen Eingangs- und Ausgangszustand, verglichen werden. Die Erfassung und Beschreibung von zulässigen Grenzzuständen wird durch die Produktqualität und die Herstellerangaben, wie Mengenleistung, Zeit, Temperatur und Druck sowie Drehzahl, beschrieben.The process itself is designed so that by comparing the input Material parameters of the material, such as temperature, humidity, density, color and others Parameters, these with the material output parameters, such as energy input to achieve the material processing or processing target, recording the machine efficiency by comparing theoretical and practical working or processing speeds with changes in physical quantities such as temperature, humidity, Color and print, based on the comparison between input and output status, be compared. The detection and description of permissible limit states will through the product quality and the manufacturer's information, such as volume output, time, Temperature and pressure as well as speed described.
Die neuen Parameter umfassen dabei solche Daten wie Momentan-Energieverbrauch, Drehzahl der Druck- und Förderschnecke 2 der Schneckenpresse 1 mit dem theoretischen Fördervolumen, den Stoffeingangsparametern und den Stoffausgangsparametern sowie die wirkliche Fördermenge durch die Aufnahme der Stranggeschwindigkeit des aus der Förderschnecke 1 austretenden Strangvolumens 3, die über das Meßgerät 4 ermittelt wird. Schließlich findet die Zeit in Form der Betriebsstunden Einfluß.The new parameters include such data as the instantaneous energy consumption, speed of the pressure and conveyor screw 2 of the screw press 1 with the theoretical delivery volume, the material input parameters and the material output parameters, as well as the actual delivery quantity by recording the line speed of the line volume 3 emerging from the conveyor screw 1 , which is determined via the measuring device 4 . Finally, time takes the form of the operating hours.
Als Verknüpfungsparameter werden herangezogen der Energieverbrauch, die Drehzahlen, die Stranggeschwindigkeit, die Förderzeit, die zur Errechnung des Förderwirkungsgrades als Zustandsparameters dient und Auskunft über die Zeit/Betriebsstunden geben, wobei Wirkungsgrad-Vergleichsabweichungen Grundlage zur Bewertung des Istzustandes sind.The energy consumption, the speeds, the strand speed, the conveying time, to calculate the conveying efficiency serves as a status parameter and provides information about the time / operating hours, whereby Efficiency comparison deviations are the basis for the evaluation of the actual state.
Da, wie bereits oben ausgeführt, die zu verarbeitenden Materialien, die Verarbeitungs güter, gleichfalls eine Maschinenteilfunktion im gesamten System besitzen, bedingen deren Wirkungsgradverschlechterungen schlechtere Wirkbedingungen, die die Stoffzustände verändern.Since, as already explained above, the materials to be processed, the processing Goods, which also have a machine part function in the entire system, require them Degradation in efficiency poorer conditions of action, the substance states change.
So hat die Temperatur wesentlichen Einfluß auf den Wirkungsgrad, so daß die Differenz aus der Stoffeingangstemperatur und der Stoffausgangstemperatur mit sinkendem Wirkungsgrad größer wird.So the temperature has a significant influence on the efficiency, so that the difference from the material inlet temperature and the material outlet temperature with decreasing Efficiency becomes greater.
Dabei nimmt die Stoffbelastung zu, der Feuchtegrad und die Farbe des Materials ändern sich zusätzlich und die Temperaturdifferenzen und die Stoffausgangstemperatur streben dem festen Temperaturgrenzwert zu. Dies bedeutet, es entstehen zur Bewertung zwei Temperaturdifferenzen. Der Kreuzungsvergleich der Temperaturänderung führt zu einem qualifizierten Δt-Mix der Grenzwertobergrenzentemperatur des gesamten Prozesses, so daß über die Temperaturdifferenz eine Wirkungsgradbestimmung bzw. Wirkungsgrad beschreibung der Druck- und Förderschnecke 2 und somit des Wirkungsgrades der Schneckenpresse 1 möglich ist.The substance load increases, the degree of moisture and the color of the material change additionally, and the temperature differences and the material outlet temperature tend towards the fixed temperature limit. This means that two temperature differences arise for the evaluation. The crossing comparison of the temperature change leads to a qualified Δt mix of the upper limit temperature limit of the entire process, so that an efficiency determination or efficiency description of the pressure and conveyor screw 2 and thus the efficiency of the screw press 1 is possible via the temperature difference.
Das in der Fig. 2 dargestellte Diagramm verdeutlicht unmittelbar den Zusammenhang zwischen Stoffeingangs- und Stoffausgangstemperaturen.The diagram shown in FIG. 2 immediately illustrates the relationship between the inlet and outlet temperatures.
Neben dem volumetrischen Wirkungsgrad hat der erforderliche Energieeintrag zur Produkterzeugung die Eigenschaft, durch sinkende Fördermengen aus der Verschleiß wirkung und der geringen Stoffwandstützkräfte, zu sinken. Mit dem Ergebnis aus den Betriebsstunden - Systemlaufreit gepaart mit qualifziertem Δt-Kreuzvergleich, ergeben sich über den Fördermengenvergleich ein weiter gewichtiger Grenzwert zur kontinuierlichen Zustands- und Nutzungsanalyse der funktionellen Sicherheit des gesamten Maschinensystems.In addition to the volumetric efficiency, the energy input required for Product production has the property of falling throughput due to wear effect and the low fabric wall support forces to decrease. With the result from the Operating hours - system running paired with qualified Δt cross comparison a further weighty limit value is compared via the flow rate comparison continuous status and usage analysis of the functional safety of the entire machine system.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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DE19917471A DE19917471A1 (en) | 1999-04-17 | 1999-04-17 | Control method for maintaining operational reliability on a screw extruder, used with viscous pastes combines and considers material input parameters and output parameters |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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DE19917471A DE19917471A1 (en) | 1999-04-17 | 1999-04-17 | Control method for maintaining operational reliability on a screw extruder, used with viscous pastes combines and considers material input parameters and output parameters |
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DE19917471A1 true DE19917471A1 (en) | 2000-10-19 |
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DE19917471A Withdrawn DE19917471A1 (en) | 1999-04-17 | 1999-04-17 | Control method for maintaining operational reliability on a screw extruder, used with viscous pastes combines and considers material input parameters and output parameters |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1266732A2 (en) * | 2001-06-07 | 2002-12-18 | Bongioanni Macchine S.p.A. | Machine for the extrusion and wet-forming of clay |
DE10336215B4 (en) * | 2003-08-07 | 2012-02-09 | Fan Separator Gmbh | Method for controlling the rate of discharge of the solid plug on a screw extruder with a cylindrical mouthpiece |
WO2018229339A1 (en) * | 2017-06-13 | 2018-12-20 | Demeca Oy | Separation apparatus and method for adjusting the pumping speed of the separation apparatus feed pump |
-
1999
- 1999-04-17 DE DE19917471A patent/DE19917471A1/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1266732A2 (en) * | 2001-06-07 | 2002-12-18 | Bongioanni Macchine S.p.A. | Machine for the extrusion and wet-forming of clay |
EP1266732A3 (en) * | 2001-06-07 | 2004-03-03 | Bongioanni Macchine S.p.A. | Machine for the extrusion and wet-forming of clay |
DE10336215B4 (en) * | 2003-08-07 | 2012-02-09 | Fan Separator Gmbh | Method for controlling the rate of discharge of the solid plug on a screw extruder with a cylindrical mouthpiece |
WO2018229339A1 (en) * | 2017-06-13 | 2018-12-20 | Demeca Oy | Separation apparatus and method for adjusting the pumping speed of the separation apparatus feed pump |
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