EP3097033A1 - Dispositif et procédé pour le transport de substances coulantes, en particulier de matières en vrac - Google Patents

Dispositif et procédé pour le transport de substances coulantes, en particulier de matières en vrac

Info

Publication number
EP3097033A1
EP3097033A1 EP15702659.2A EP15702659A EP3097033A1 EP 3097033 A1 EP3097033 A1 EP 3097033A1 EP 15702659 A EP15702659 A EP 15702659A EP 3097033 A1 EP3097033 A1 EP 3097033A1
Authority
EP
European Patent Office
Prior art keywords
container
flowable
flowable substance
amount
conveying
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Withdrawn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
EP15702659.2A
Other languages
German (de)
English (en)
Inventor
Thorsten Tschritter
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.)
Alfons Tschritter GmbH
Original Assignee
Alfons Tschritter 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 Alfons Tschritter GmbH filed Critical Alfons Tschritter GmbH
Publication of EP3097033A1 publication Critical patent/EP3097033A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/296—Acoustic waves
    • G01F23/2962—Measuring transit time of reflected waves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
    • B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
    • B65G53/16—Gas pressure systems operating with fluidisation of the materials
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
    • G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
    • G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
    • G01F23/284—Electromagnetic waves
    • G01F23/292—Light, e.g. infrared or ultraviolet
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/04—Bulk

Definitions

  • the present invention relates to a device for the conveying of at least one flowable material with the features of the preamble of claim 1, a method for conveying at least one flowable material with the features of claim 14, and the use of a measuring means having the features of claim 19 ,
  • a compressed air conveyor in which a suction lance is inserted into the bulk material supply to be conveyed and compressed air is introduced into the suction lance, which is diverted within the suction lance in the conveying direction and thereby generates a suction effect (see
  • the plastic processing machine not only one type of material, but two or more varieties are fed simultaneously or sequentially. This is the case, for example, when virgin material and ground material are to be fed from a random mill in a defined percentage ratio on a processing machine.
  • Conveyor separators for suction conveyors typically consist of a separator and a receiver provided below the separator, from which the bulk material is supplied to the corresponding processing machine, such as an extrusion machine.
  • the pneumatic suction conveyance of bulk materials, preferably plastic granules or grinding materials, using such bainabscheider is triggered by digital signals, that is both start and end of the funding process are determined by digital signals.
  • the pneumatic suction conveyor is conventionally started by the use of a conveyor blower (suction fan) and the conveying air flow generated by the conveyor fan supplied to the separator through a delivery valve, so that via a provided on the separator material inlet bulk material is sucked. If the promotion be turned off, the delivery valve closes for the conveying air flow and the conveying air flow can be supplied to a further separator as suction air.
  • a conveyor blower suction fan
  • the known from the prior art contester have several disadvantages.
  • the material level or the amount of material in and below the separator is made by touching the scanning method, which can lead to the failure of the sensors, especially with electrostatically chargeable materials.
  • the present invention is therefore an object of the invention to provide a device for conveying flowable materials, such as bulk materials, which avoids the disadvantages described above and ensures a continuous and reliable promotion of bulk materials in the desired processing plant or processing device.
  • a device for the promotion in particular a suction conveyor of at least one flowable material, in particular of flowable solids, such as bulk materials, provided, which comprises at least a first container for receiving the flowable material, wherein the at least one first container, for example, in Form of a separator is present, at least a first
  • Inlet means for introducing the flowable substance into the first container and at least one outlet means for discharging the flowable substance from the first container.
  • the at least one first container of the present inventive device further comprises at least one means for non-contact measurement of the amount of flowable substance in the at least one first container.
  • “quantity” is to be understood as meaning preferably the volume of the flowable substance, for example in the form of the bulk material. It is therefore determined in particular the filling volume in the container.
  • a control signal to the inlet means for introducing the flowable substance into the container and / or a signal to the outlet means for discharging the flowable material from the first Container are transmitted, whereby contact of the measuring means is prevented by the bulk material.
  • the measuring means for contactless or non-contact measurement of the bulk material in the first container is preferably arranged in an upper portion of the first container, so that, as usual, the position of the measuring means not already during construction in the side wall of the separator must be determined.
  • Suitable measuring means for contactless or non-contact measurement of the bulk material quantity are, as also explained in more detail below, in the form of ultrasonic echosound sensors, infrared sensors or radar sensors.
  • the device according to the invention serves to convey at least one flowable substance, which may be present in particular in the form of bulk material.
  • Bulk material in this case is any mixture which is present in a pourable form.
  • the bulk material can be, for example, plastic granules, lime, wood particles, fertilizers, animal feed, tablets, foodstuffs, in particular cereals, building materials,
  • the particle size of the bulk material may vary depending on the type of bulk material.
  • the present device preferably serves to convey bulk particles having an average diameter of between 0.5 and 2 mm, which may also be elongated with average lengths of between 1 and 3 mm. Overall, bulk materials with significantly different particle sizes can also be conveyed, such as bulk material in powder form or in significantly larger dimensions.
  • the present conveyor device is used to convey plastic granulate particles used in injection molding processes.
  • At least one further second container for. B. arranged in the form of a storage container, wherein the flowable substance from the first container into the second container can be introduced.
  • the arrangement of the second container below the first container ie the arrangement z. B. an original container below a separator, means that both containers are arranged along a common vertical axis. This vertical arrangement of the two containers above one another allows a simple introduction of the flowable substance from the separator as a first container in the storage container as a second container.
  • the first container and the second container preferably communicate via the at least one outlet means for emptying the flowable material (bulk material) from the first container into the second container.
  • the outlet means may e.g. B. may be formed in the form of an opening which is provided in a lower portion of the first container. Accordingly, the present arrangement allows emptying of the bulk material from the first container by the z. B. provided in the bottom of the first container opening in the underlying second container (storage tank), wherein the flowable material, for. B. bulk material from the storage container to a suitable processing machine, such. B. an extrusion machine, in turn derivable.
  • the second container likewise comprises at least one means for non-contact measurement of the quantity of flowable substance in the at least one second container.
  • at least two means for non-contact measurement of the amount of flowable substance are thus provided in the present device, wherein a measuring means in the first container z. B. in the form of a separator and a second measuring means in the second container, for. B. are arranged in the form of a storage container.
  • the first and second containers are combined in a single container.
  • the flowable substance after entry into the conveying device can immediately be subjected to further processing, e.g. be fed to an extrusion machine.
  • a contactless measuring means e.g. Ultrasonic sensor required.
  • the at least one means for non-contact or non-contact measurement of the amount of flowable substance in the first and / or second container preferably emits sound waves.
  • Preferred measuring means for non-contact measurement of a substance quantity are ultrasonic sensors, light sensors, IR sensors and / or radar sensors.
  • the at least one means for non-contact measurement of the quantity of flowable substance (bulk material quantity) in the first and / or second container is in each case in an upper region (ie viewed in the vertical direction in the conveying direction of the flowable material) of the first and / or or second container, so that the sound waves impinge each from above on the located in the first and / or second container flowable material (bulk material).
  • the measuring means in the first container may e.g. be provided on or in the ceiling or the above conclusion of the first container.
  • the measuring means in the first container may e.g. be permanently installed in the ceiling or mounted movably on the container inside the container ceiling.
  • the exact placement of the measuring means in the upper portion of the first container is not essential, as long as the first measuring means emits the sound waves so vertically down into the first container that they cover the interior of the first container.
  • the measuring means in the second container can also be arbitrarily placed in the upper portion of the second container.
  • the measuring means may be arranged in the second container adjacent to the outlet means of the first container for emptying the bulk material from the first container into the second container.
  • the second measuring means transmits the sound waves as vertically as possible downwards into the interior of the second container.
  • the transmitted from the measuring means from sound waves thus scan the respective container interior and receives depending on the amount and thus quantity of the bulk material in the respective container dependent signal, based on the bulk material in the respective container can be closed.
  • an ultrasonic sensor z. B. used in the form of an ultrasonic sonar sensor.
  • the ultrasonic sensor used herein may have separate transmitting and receiving means. Accordingly, the ultrasonic waves in this sensor variant are emitted by the transmitting device and the reflected ultrasonic waves are detected by the receiving device.
  • the transmitting and receiving devices are not separated. Rather, the Transmitter switched after sending the sound signal and used as a receiving device.
  • the advantage of this embodiment of the ultrasonic sensor is that it is easier to install and seal.
  • reception areas of 2 to 200 cm, preferably 10 to 100 cm, are used here.
  • the presently used ultrasonic sensor comprises a relatively insensitive filter for measuring the material level or amount of material in the container and another filter for detecting the incoming bulk material into the container.
  • mixing devices such as a revolving paddle
  • the transmitted sound waves can be reflected by the same.
  • the movement of the mixing device such as e.g. a rotating paddle is detected and evaluated in a continuous rotation by a cyclic reflection.
  • the cyclically determined signal can be filtered out accordingly to determine the amount of material of the bulk material in particular in the storage container.
  • the principle of ultrasonic measurement is known per se and will be outlined here only briefly with respect to the present device.
  • the respective ultrasonic sensor sends a sound signal (ultrasound with a wavelength between 50 and 200 kHz) into the respective container or
  • the ultrasonic sensors are in each case arranged at the upper end of the separator and / or receiver, so that the ultrasonic waves are emitted downwards into the respective container interior and are reflected by the material (bulk material) that is flowable in the container interior.
  • the reflected sound waves are received by the sensor or an associated sound transducer. From the term of the reflected Ultrasonic waves, the distance between the sensor and bulk material and thus determines the height and level of the bulk material in each container.
  • the non-contact measurement such as in the form of an ultrasonic measurement offers the possibility for energy saving compared to capacitive or inductive measurements.
  • Capacitive and inductive sensors are usually powered permanently and thus consume energy permanently. Switching off the power supply to capacitive and inductive sensors, however, means an increased control engineering effort and thus increased costs.
  • non-contact measuring for example by ultrasound, no power is consumed between the measuring pulses or measuring waves (sending the measuring wave and waiting for reflection).
  • the measurement interval can now additionally be extended to a maximum value without influencing the security of supply of the processing machine.
  • the outlet means provided in the lower portion of the first container for introducing the material, for example bulk material, from the first container into the second container is configured in the shape of a truncated cone.
  • the wide end of the outlet means points toward the fabric and gas inlet, that is, toward the first container and the narrow, narrow end of the outlet means faces towards the second container.
  • the frusto-conical structure of the outlet means divides the device into a separation volume (volume in the first container) and a reservoir volume (volume of the second container).
  • the outlet means may for example be constructed of plates, the plates of the frusto-conical structure being arranged inclined with respect to a plane which is perpendicular to the longitudinal direction
  • Axis of the container is.
  • the angle of inclination of the plates of the outlet means may be between 30 to 90 degrees, preferably 60 to 90 degrees. Accordingly, in a particularly preferred embodiment, a cone with 60 ° to 90 ° opening angle is used as the outlet means.
  • a control means for controlling the amount of flowable substance to be introduced from the first container into the second container is provided on or adjacent to the outlet means.
  • the control means may for example be in the form of a flap, such as a mechanical swing flap.
  • Quantity of bulk material in the first and / or second container is determined, there is an adjustment of the shuttle valve for targeted control of the flow rate of the flowable material (Bulk material) from the first container into the second container. It would also be possible to use a gate valve instead of a flap, such as a pendulum flap.
  • the present device is connected to a system for further processing of the flowable substance.
  • the further processing system is preferably arranged below the second container of the device or runs below the second container. It is conceivable, for example, that below the second container, a conveyor belt runs, which serves to fill transport containers.
  • Another variant of a further processing plant is, for example, an extrusion apparatus for melt processing in the production of plastics.
  • the present object is also achieved by a method for conveying at least one flowable substance, which is carried out in the device according to the invention.
  • the present delivery method comprises the steps of introducing the flowable substance via at least one inlet means into the first container, and determining the amount of flowable substance in the first container using a first means for non-contact measurement of the quantity provided in the first container Level of the flowable material in the first container, wherein in dependence on the determined in the first container amount of the flowable substance, the flow rate of the flowable material is controlled in or through the first container.
  • the introduction of the flowable substance into the first container through the first inlet means is preferably effected and adjusted by the introduction of at least one air flow through the at least one second inlet means.
  • air flow is generated by at least one delivery fan.
  • Device is a suction of the flowable substance through the first inlet means in the first container of the present device.
  • the flowable substance present in the first container is emptied from the first container through an outlet means into a second container arranged below the first container.
  • This step of emptying may be controlled by a control means provided on the outlet means, for example in the form of a mechanical shuttle valve.
  • the pendulum flap preferably opens automatically as soon as the delivery valve switches off.
  • the conveyed bulk material then falls through the outlet means (eg lower opening) into the second container.
  • the amount of flowable substance in the second container is determined using a second means provided in the second container for non-contact measurement of the amount or the level of the flowable material, wherein the flow rate of the flowable material from the second container, for example in a finishing plant , is adjustable in dependence on the determined in the second container amount of the flowable material
  • the flowable material may be directed from the second container of the present apparatus to a plant for further processing of the flowable material.
  • a processing plant may be, for example, an extrusion apparatus for processing plastic granules or the like.
  • the flow rate of the flowable material is in a range between 100 kg / h and 2,000 kg / h, preferably between 400 kg / h and 600 kg / h.
  • the amount of conveying air flow is preferably 150 to 250 m 3 / h, in particular 200 m 3 / h.
  • separators in this case first vessels having a volume of between 20-200 liters, preferably 50 to 150 liters, are preferably used, so that the measurement height of the contactless measuring means (such as ultrasound sensors) varies within a range of 20-200 cm.
  • non-contact or contactless measuring means e.g. in the form of non-contact sensors such as the ultrasonic sensors just described for measuring the amount of a flowable material (bulk material) in the present flowable conveying device has various advantages.
  • a maximum conveying level can be adjusted. This eliminates the need to enter a funding period.
  • the contactless measurement of the amount of bulk material can be carried out during the actual conveying process, so that a measurement in the waiting times does not occur while z. B. other separators promote the bulk material or no material is promoted.
  • the measurement interval of non-contact measurements can be magnified ßert to minimize energy consumption. In practice, it often happens that the actual processing machines z. B. extrusion machines are stopped, the promotion remains turned on.
  • a non-contact sensor can cause a dynamic adjustment of the measuring intervals, so that only as much energy is consumed for the measuring means, such as absolutely necessary for the operation of the system. This is an advantage over the conventional sensor technology, which is employed at all times and thus consumes energy at all times.
  • Another advantage of using a non-contact sensor in a separator is that with each quantity or level measurement of the bulk material in the separator with knowledge of the Abscheidergeometrie and the bulk density of the transported material, the subsidized amount can be calculated and accounted. Thus, a mass flow (kg / h) can be determined during the ongoing promotion from the difference of the measured fill levels, which can serve for further testing and control of the conveyor. If z. B.
  • a further advantage of the present device of using a contactless measuring means is that the current conveying process can be terminated as soon as a required production quantity has arrived. This allows the present device to minimize material losses at the end of the production order.
  • an optimal mass flow can be predetermined for the various materials, so as to avoid dust and angel hair formation, to reduce abrasion or to protect the device as much as possible.
  • negative pressure and delivery volume are set or measured and regulated. It is even possible to reduce the air velocity of the flow to the extent that the promotion of a strands promotion in the unstable area changes in which increasingly grafting in the delivery line arise.
  • the conveyor system can thus adjust itself to an optimum conveying speed. This also saves energy and protects the material.
  • a contactless measuring means such as an ultrasonic sensor for determining the quantitative level of a flowable material in the second container, for example in the form of a reservoir below the first separation vessel, provides a measurement signal indicating the amount of material in the second container below the separator ,
  • the switching level is determined here by the control logic and not by the mechanical installation, which also brings some advantages.
  • the non-contact measurement especially in abrasive materials such as glass fiber reinforced plastics advantageous, especially because a failure of otherwise common touch sensors is avoided.
  • the mass determination of conveyed goods or bulk goods can be made possible, which only allow contact with stainless steel, such as in medicine or food industry.
  • the non-contact measuring means used in the present case can thus be used now in delivery separators, which specifically promote goods for the medical or food industry.
  • the switching level is independent of the bulk density and electrostatic properties of the flowable substance.
  • the switching level can be determined by the control logic. For example, it is possible to switch between different switching levels, depending on whether the processing machine to be supplied is in operation or in a changeover or idling phase. As a result, the material supply of the processing machine can be adjusted via the conveyor so that at the end of the production order no material is in the material template. This saves material and changeover time.
  • the quantity level of the flowable substance in the device or the switching level in the second container in the form of the storage container can also be used to determine a delivery priority.
  • the fan is preferably assigned to the separator, which could possibly be empty next.
  • the measured quantity level or bulk material level can also be used to measure the throughput of the processing machine filled with the conveyed bulk material.
  • the current conveying operation is interrupted and the separator emptied to prevent emptying of the processing machine.
  • the conveyed bulk material can be emptied into the storage container.
  • the contactless measuring method such as an ultrasonic measuring method
  • the amount of bulk material can be calculated with knowledge of the geometry of the storage container. If the volume of bulk material conveyed differs too much from the expected quantity of bulk material, it is possible to conclude that the delivery process is disrupted and that a corresponding alarm is triggered.
  • FIG. 1 shows a schematic representation of a delivery separator with conventional measuring devices for determining the filling level
  • Figure 2 is a schematic representation of a winningabscheiders according to a first embodiment of the present invention
  • Figure 3 is a schematic representation of a winning bidder according to a second
  • Figure 4 is a schematic representation of a third embodiment with a
  • Figure 5 is a schematic representation of the material level detection in the third
  • Figure 6 shows a fourth embodiment with a particular embodiment of the lower
  • Figure 7 shows a fifth embodiment with a further embodiment of the lower
  • Figure 8 shows a sixth embodiment with another design of a
  • the conventional conveying separator shown in FIG. 1 comprises a separator 1 (first container) and a storage container 7 (second container) arranged immediately below the separator 1. Separator 1 and reservoir 7 are connected via the opening 5 with each other.
  • the bulk material is introduced through the inlet means 4 in the separator.
  • the introduction of the bulk material takes place in principle by means of suction or pressure promotion in the separator.
  • the introduction of the bulk material into the separator 1 takes place by means of a pneumatic suction conveyor, wherein the suction flow or suction-conveying flow required for this purpose is provided by the conveyor fan 2.
  • the conveying fan 2 provides the conveying air flow which is introduced into the separator 1 through the opened inlet valve 3. Due to the conveying air flow, the bulk material is sucked into the separator 1 through the inlet means 4.
  • the conveying air flow can be regulated via the inlet valve 3.
  • the determination of the amount of bulk material in the separator 1 takes place, for example, by means of a capacitive full detector 9 and / or a capacitive proximity switch 8 provided in the storage container.
  • Both capacitive proximity switches 8 and the capacitive full detector 9 are conventionally inserted into the container wall of the separator 1 or . of the storage container 7 installed. Accordingly, the position of the capacitive measuring means 8, 9 must be determined already in the construction of the delivery separator according to FIG.
  • the flow rate of the bulk material is controlled by the bainabscheider.
  • FIG. 2 shows a first embodiment of the device according to the invention.
  • the structure of the device according to the invention is substantially equal to the structure of a conventional fraudabscheiders as shown in Figure 1 and.
  • both conveyors of Figure 1 and Figure 2 differ in terms of the used for measuring equipment for determining the level or defects of the bulk material in the separator 1 and the reservoir 7. So is in the upper portion of the separator 1, more precisely in the ceiling of the separator
  • a measuring means 20 provided in the form of an ultrasonic sensor.
  • the ultrasonic transmitter 20 scans the interior of the separator 1 and thus serves to determine the filling level of the bulk material in the separator 1.
  • the embodiment of Figure 2 is in the storage container 7 also another
  • Ultrasonic sensor 21 is provided, which is also provided in the present invention in the upper region of the storage container 7.
  • the ultrasonic sensors 20, 21 can be flexibly mounted in the conveyor, and their position does not have to be determined already during the design process of the conveyor.
  • the ultrasonic sensors 20, 21 each transmit ultrasonic waves having wavelengths between 50 and 200 kHz into the separator 1 and the receiver 7.
  • the ultrasonic waves are discharged downwards into the separator 1 or receiver 7 and of the separator 1 and storage tank 7 reflects existing bulk material.
  • the sound waves reflected by the bulk material are received by the sensor 20, 21 or an associated sound transducer. From the duration of the reflected ultrasonic waves, the distance between the sensor 20, 21 and the bulk material and thus the level of the bulk material in the separator 1 and the original container 7 is determined.
  • Figure 3 shows a second embodiment of the device according to the invention, in which the first and the second container are combined into a single container.
  • This embodiment can be used when the processing machine allows the application of negative pressure. This is the case with many extrusion processes.
  • the quantity level measured without contact is used for the determination of the switch-off level 1 1 a, at which e.g. the delivery is switched off after reaching the full level, determining the filling level 1 1 b, e.g. for reporting a demand quantity and start of the promotion, and determining an alarm limit 1 1 c, e.g. to monitor a minimum alarm level.
  • the filling level of the container is measured using an ultrasonic sensor. Due to the known container geometry, the filled volume is calculated from the knowledge of the measured filling level. By multiplication with the bulk density one receives the
  • the bulk density is usually entered in the operating device and / or stored in a recipe memory.
  • Another advantage is that with fluctuating bulk densities of the ultrasonic sensor does not need to be readjusted, as is the case with capacitive proximity switches. With strong bulk density fluctuations, it can happen that a capacitive probe no longer outputs any signal. Previous experiments have shown that when sinking Bulk density Although the accuracy of the level measurement decreases, but that there is always a sound reflection. Especially regrind can be monitored more reliably.
  • FIG 4 shows the detection of the material level at rest promotion.
  • check valve 31 is arranged at the inlet means 4 at the inlet means 4 .
  • the non-return valve 31 is designed here as a pendulum suspended plate.
  • a guide means 30, here designed as a catch or baffle serves a purposeful control of the flow of material during the promotion, which is shown in more detail below.
  • the guiding means 30 may e.g. have a perforated plate, so that conveying air can pass.
  • the incoming material is shown during the promotion.
  • the non-return flap 31 is opened by the impinging particles and the material passes to the guide means 30, the wall 32 of which is arranged here approximately at right angles to the open non-return flap 31.
  • the guide means 31 is concave, wherein the wall 32 is part of the concave part.
  • the material forms on the wall 32 flowing from a bulk pad 33, which brakes the following material. The thus braked material then flows at a lower speed down into the separator 1, without swirling much in the separator 1.
  • FIG. 6 shows a variant of the embodiment according to FIGS. 4 and 5, so that reference can be made to the description.
  • - as shown in Fig. 5- the situation during the suction conveyance shown.
  • a flap 34 is arranged, which is closed during the Saug mainstreamvorgangs by the applied negative pressure.
  • FIG. 7 an embodiment is shown in which the assembly directly on a machine (not shown here), ie without flap 34.
  • Fig. 8 an embodiment is shown in which the non-return valve 31 and the guide means 30 integrated with each other are by the Leitsch 31 is formed pendulum.
  • the guide means 30 is at least partially concave and is in front of the inlet means 4th arranged. At rest, the concave part of the guide means 31 is located in front of the inlet means 4. In the conveying state, the inflowing material impinges on the concave part of the guide means 31, so that the material flows along the wall 32, which is part of the concave part.
  • the function corresponds approximately to the embodiment shown in FIG.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Thermal Sciences (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)

Abstract

La présente invention concerne un procédé pour le transport d'au moins une substance coulante, en particulier de matières en vrac, comprenant au moins un premier récipient (1) destiné à recevoir la substance coulante, ledit au moins un premier récipient (1) présentant au moins un premier moyen d'entrée (4) pour introduire la substance coulante dans le premier récipient (1) et au moins un moyen de sortie (5) pour évacuer la substance coulante du premier récipient (1), ledit au moins un premier récipient (1) comprenant au moins un moyen pour la mesure (20) sans contact de la quantité de la substance coulante dans ledit au moins un premier récipient (1). L'invention concerne également un procédé réalisé dans un tel dispositif.
EP15702659.2A 2014-01-20 2015-01-20 Dispositif et procédé pour le transport de substances coulantes, en particulier de matières en vrac Withdrawn EP3097033A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102014200924.3A DE102014200924A1 (de) 2014-01-20 2014-01-20 Vorrichtung und Verfahren für die Förderung von fließfähigen Stoffen, insbesondere Schüttgütern
PCT/EP2015/051005 WO2015107217A1 (fr) 2014-01-20 2015-01-20 Dispositif et procédé pour le transport de substances coulantes, en particulier de matières en vrac

Publications (1)

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EP3097033A1 true EP3097033A1 (fr) 2016-11-30

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US (1) US20160334264A1 (fr)
EP (1) EP3097033A1 (fr)
DE (1) DE102014200924A1 (fr)
WO (1) WO2015107217A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE1025278B1 (fr) * 2016-11-28 2019-01-09 S.A. Lhoist Recherche Et Developpement Procédé de transport pneumatique d’un matériau pulvérulent
WO2018095553A1 (fr) * 2016-11-28 2018-05-31 S.A. Lhoist Recherche Et Developpement Procédé de transport pneumatique d'un matériau pulvérulent
CN109250507A (zh) * 2018-08-28 2019-01-22 贵阳振兴铝镁科技产业发展有限公司 一种超浓相输送系统物料流速调节方法
TWI779280B (zh) * 2019-06-03 2022-10-01 日商英達斯特股份有限公司 微細物除去系統
EP4191210B1 (fr) * 2021-12-03 2024-03-06 Schoeller Allibert GmbH Récipient pliable comprenant un capteur de niveau de remplissage

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378124A (en) * 1965-06-15 1968-04-16 Johannes Josef Martin Chute

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2193738A (en) * 1938-05-21 1940-03-12 Nat Conveyors Co Inc Pneumatic conveyer
DE2625263C3 (de) * 1976-06-04 1980-07-31 Waeschle Maschinenfabrik Gmbh, 7980 Ravensburg Vorrichtung zur Aufgabe von Schüttgut in eine pneumatische Förderleitung
CH607002A5 (fr) * 1976-06-09 1978-11-30 Endress G H & Co
DE2659058A1 (de) 1976-12-27 1978-07-06 Coors Container Co Mit treibgas betriebenes pulver- aufnahmerohr
GB2020507B (en) * 1978-02-24 1982-04-28 Hawker Siddeley Dynamics Eng Method and apparatus for measurement of the contents of a bunker or silo
DE3123283A1 (de) * 1981-06-12 1982-12-30 Ibau Hamburg Ingenieurgesellschaft Industriebau Mbh, 2000 Hamburg Verfahren und vorrichtung zum einschleusen von staubfoermigem oder koernigem material, insbesondere zementmaterial
DE3812293A1 (de) * 1988-04-13 1989-10-26 Endress Hauser Gmbh Co Fuellstandsmessgeraet
JP3364699B2 (ja) * 1994-04-25 2003-01-08 ノードソン株式会社 粉体レベル検出装置
DE4438604C2 (de) * 1994-10-28 1997-09-11 Harald Feuerherm Verfahren zum Steuern einer Blasformanlage
JPH08309177A (ja) * 1995-05-22 1996-11-26 Nagata Tekko Kk 粉体の定量供給装置
DE10003094A1 (de) * 2000-01-25 2001-07-26 Hamilton Bonaduz Ag Bonaduz Verfahren und Vorrichtung zum berührungslosen Bestimmen von Füllungseigenschaften eines Gefäßes
DE10106176B4 (de) * 2001-02-10 2007-08-09 Vega Grieshaber Kg Ausrichtbarer Messkopf und diesen verwendende Füllstandsmessvorrichtung und -verfahren
DE10139242A1 (de) * 2001-08-09 2003-03-06 Grieshaber Vega Kg Verfahren und Vorrichtung zum Erfassen eines Befüllvorgangs
DE202009014658U1 (de) * 2009-10-29 2010-02-11 Petersen Service Gmbh Vorrichtung zum Fördern mineralischer Feststoffe
JP5792436B2 (ja) * 2010-06-16 2015-10-14 赤武エンジニアリング株式会社 袋内の粉体の吸引取出装置
ZA201203660B (en) * 2011-05-20 2013-01-30 Abb South Africa (Proprietary) Ltd A system determinig a quantity of bulk material and a method thereof

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3378124A (en) * 1965-06-15 1968-04-16 Johannes Josef Martin Chute

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2015107217A1 *

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DE102014200924A1 (de) 2015-07-23
WO2015107217A1 (fr) 2015-07-23

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