EP3319731A1 - Dispositif de séparation et procédé de détection d'une accumulation de matière dans un tel dispositif de séparation - Google Patents

Dispositif de séparation et procédé de détection d'une accumulation de matière dans un tel dispositif de séparation

Info

Publication number
EP3319731A1
EP3319731A1 EP16741554.6A EP16741554A EP3319731A1 EP 3319731 A1 EP3319731 A1 EP 3319731A1 EP 16741554 A EP16741554 A EP 16741554A EP 3319731 A1 EP3319731 A1 EP 3319731A1
Authority
EP
European Patent Office
Prior art keywords
outlet
housing
separating device
interior
substance
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.)
Granted
Application number
EP16741554.6A
Other languages
German (de)
English (en)
Other versions
EP3319731B1 (fr
Inventor
Alfons LEUER
Heinz BREDEMEIER
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.)
ThyssenKrupp AG
ThyssenKrupp Industrial Solutions AG
Original Assignee
ThyssenKrupp AG
ThyssenKrupp Industrial Solutions AG
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 ThyssenKrupp AG, ThyssenKrupp Industrial Solutions AG filed Critical ThyssenKrupp AG
Publication of EP3319731A1 publication Critical patent/EP3319731A1/fr
Application granted granted Critical
Publication of EP3319731B1 publication Critical patent/EP3319731B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C11/00—Accessories, e.g. safety or control devices, not otherwise provided for, e.g. regulators, valves in inlet or overflow ducting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations

Definitions

  • the invention relates to a separation device, for example in the form of a so-called cyclone.
  • the invention further relates to a method for detecting a substance accumulation in such a separation device.
  • separating devices which may be formed for example in the form of static or dynamic classifiers or in the form of cyclones. While in classifiers primarily a classification of solids of different particle sizes occurs, cyclones usually serve to separate solids (especially small grain sizes, i.e. dust) from a gas flow. In plants of the basic industry, cyclones are used, for example, as separation and preheater cyclones.
  • the solid-gas mixture flow is set in rotation and the different inertias of the gas flow on the one hand and the solids on the other exploited to separate them.
  • an outlet for the gas flow is arranged in such a way that the solids can not follow the gas flow into this outlet due to inertia. Rather, the solids fall downwards due to their separation from the mixture flow due to gravity and are discharged via a further outlet.
  • the interior of a cyclone is usually designed such that it tapers in the direction of this outlet for the solids in order to ensure the most complete possible discharge.
  • cyclones are regularly monitored, at least in plants of the basic industry, with regard to a possible blockage of the solids outlet.
  • This can be done by means of a radiometric measuring device in which the housing of a cyclone in Area of the solids outlet is irradiated with gamma rays.
  • a signal is output when the gamma radiation emitted by the gamma radiation source and received by a receiver falls below a defined limit value.
  • the radioactive gamma radiation source required for such a radiometric measuring device leads to considerable safety requirements for the
  • Monitoring of a cyclone for a developing blockage in the area of the solids outlet can also be done by means of a pressure or differential pressure measurement.
  • the measuring devices used for this purpose have so far been relatively maintenance-intensive. Furthermore, these measuring devices do not detect caking or braiding.
  • DE 10 2012 003 948 A1 discloses a fill level measuring system operating on the radar principle for a container receiving a medium, in the container wall of which a so-called microwave window which is at least partially transparent for microwave radiation is integrated.
  • the level measuring system comprises a radiation source arranged outside the container, from which microwave radiation is emitted through the microwave window into the container in order to determine the level of the medium within the container.
  • the invention was the object of an advantageous way to detect a substance accumulation in one
  • a separating device with a housing which forms an inlet for a substance mixture flow, a first outlet for a first partial flow of the substance mixture flow and a second outlet for a second partial flow of the substance mixture flow is characterized according to the invention by a radar device which is designed and arranged such that by means of this electromagnetic radiation can be emitted by an interior formed by the housing in the direction of the first outlet and can be received again as reflected radiation.
  • a radar device which is designed and arranged such that by means of this electromagnetic radiation can be emitted by an interior formed by the housing in the direction of the first outlet and can be received again as reflected radiation.
  • a method for detecting a substance pool in a first outlet of a separation device comprising an interior forming housing into which a mixture stream is introduced via an inlet and from which a first substream of the mixture flow via the first outlet and a second substream of the mixture flow via a second outlet is therefore characterized in that a collection of substances is detected and analyzed by evaluating electromagnetic radiation emitted by a radar device of the separation device in the direction of the first outlet and received back as reflected radiation.
  • a comparison of a value of the reflected radiation with a reference value for the reflected radiation can be provided to determine from a difference of these values on a substance pool or a size value of to conclude such substance accumulation.
  • a reference measurement not only the presence of a substance accumulation in the first outlet is detected, but also at least one layer thickness thereof Material collection, for example, an average layer thickness above the area detected by the electromagnetic radiation, is measured. If then several more staggered measurements are made, it can also be determined from a temporal change in the layer thickness. In this way, for example, an increase of the substance accumulation can be observed and a countermeasure can only be initiated when a critical value for this substance accumulation is reached. Furthermore, the very slow change of the measured Schichtdiche can point to a possible Wechte.
  • the detected substance accumulation can also be in a static part, which may be formed by adhesions on the inside of the housing, and a dynamic part, which can be dissipated by the over the first outlet first sub-stream of the substance mixture stream can be formed, can be distinguished. In this way, only the leading to blockages attachments can be detected as accurately as possible.
  • a significant advantage of the inventively provided use of a radar device for detecting a substance accumulation in an outlet of a separation device is in the case used, substantially harmless electromagnetic radiation, so that no additional safety requirements are required for the operation of the separator.
  • suitable radar device are available inexpensively and they can be operated permanently even with low maintenance.
  • a radar device for a separating device comprises at least one radiation source for the electromagnetic radiation and at least one receiver, by which at least part of the previously emitted electromagnetic radiation can be received again after reflection at a section of the inside of the housing.
  • the radar device may also include an evaluation device, which serves to evaluate the received electromagnetic radiation and in this way enable the detection of a substance accumulation in the first outlet can.
  • the radiation source (s) and / or the / the receiver and / or the evaluation device are integrated in a (same) structural unit.
  • the electromagnetic radiation may preferably have a frequency which is within a range of megahertz, gigahertz and / or terahertz
  • the measure according to the invention is suitable for the detection of a substance accumulation in an outlet in a separation device which serves to separate (at least) one solid and (at least) one gas.
  • the separating device according to the invention may comprise a housing having a
  • Housing forms a starting from the inlet and / or the second outlet in the direction of the first outlet tapered interior, whereby a discharge of the separated from the mixture flow of solid (stream) s can be positively influenced.
  • the inlet is oriented in such a way that the substance mixture flow or solid-gas
  • the separating device can be designed in particular in the form of a so-called cyclone, as it can furthermore preferably be used in a plant of the basic industry, in particular as a separator and / or preheater cyclone.
  • it can furthermore preferably be provided that by means of the radar device or the electromagnetic radiation emitted and again received by the radar device, that (first) outlet of the separation device is monitored, which serves to remove the solid (current) separated from the gas flow.
  • the radar device is arranged partially or completely outside the interior of the housing. As a result, they can be protected from being exposed to the substance mixture stream or the partial streams or streams. Furthermore, it can be avoided that the radar device restricts the space available in the interior of the housing and / or influences the flow behavior of the substance mixture flow or one or more of the partial flows.
  • the housing In order to ensure that it is possible to monitor the first outlet by means of a radar device arranged outside the interior of the housing, it is possible to form the housing completely from a material which is at least partially transparent to the specific electromagnetic radiation. However, this can adversely affect the cost and / or structural properties of the enclosure. Therefore, it can preferably be provided that the radar device is arranged in such a way that the emitted and reflected electromagnetic radiation passes through (at least) a wall section which is at least partially transparent for this electromagnetic radiation and subsequently designated as radiation-transparent.
  • this wall section for example, at least one of the specified in DE 10 2012 003 948 AI Materials, for example, from a glass or a ceramic (eg, meta-, quartz or Bohrsilikatglas) or from a plastic, such as polypropylene, polytetrafluoroethylene (PTFE) or Polietheretherketon (PEEK) may be formed.
  • a glass or a ceramic eg, meta-, quartz or Bohrsilikatglas
  • a plastic such as polypropylene, polytetrafluoroethylene (PTFE) or Polietheretherketon (PEEK)
  • PTFE polytetrafluoroethylene
  • PEEK Polietheretherketon
  • the reflected electromagnetic radiation emitted by the radar device and received back by the latter passes through an opening of the housing, so that a relatively expensive embodiment of at least one wall section of the housing made of a radiation-transparent material may be dispensed with.
  • this transition is formed without offset at least on the inside of the housing.
  • the electromagnetic radiation emitted by the radar device can detect at least the first outlet (i.e., the outlet opening), whereby a substance accumulation within the first outlet can be detected.
  • the electromagnetic radiation emitted by the radar device can also be provided that an inner wall section of the housing bounding the first outlet is detected by the electromagnetic radiation emitted by the radar device, whereby a collection of substances, which may be present in particular as adhesions on this inner wall section, can be detected.
  • Fig. 1 a separating device according to the invention in the form of a cyclone in one
  • the first outlet 3 and the second outlet 5 are aligned substantially coaxially with respect to a longitudinal axis 9 of the housing 1, the first outlet 3 formed by a jacket part 10 of the housing 1 being arranged below the second outlet 5 formed by an outlet tube 11.
  • This outlet pipe 11 is integrated in a cover part 12 of the housing 1, wherein a portion of the outlet pipe 11 can extend into the interior 8 of the housing 1.
  • the solid-gas mixture stream 7 that has entered the interior 8 of the housing 1 via the inlet 2 and subsequently into a swirling flow due to the tangential orientation of the inlet 2 and the rotationally symmetrical design of the interior 8 with respect to the longitudinal axis 9 is added to this longitudinal axis 9, realtiv must be strongly deflected in order to be discharged via the second outlet 5 again.
  • This really strong Deflection can not be sufficiently followed by the solid (dust) to be separated from the fuel-gas mixture stream 7, as a result of which - supported by the force acting on the solid particles - is moved as a stream of solids 4 in the direction of the first outlet 3.
  • the separation device can thus be a separation of the solid-gas mixture stream. 7 in the more or less dust-free gas stream 6, which flows as a result of the relatively low (compared to the first outlet 3) flow resistance through the second outlet 5 from the housing 1, and in the solids flow 4, via the first outlet 3 from the housing is discharged, be realized.
  • a radar device 13 is provided according to the invention, which is arranged above the housing 1 and which emits electromagnetic waves 19 in the direction of the first outlet 3.
  • these electromagnetic waves 19 pass through an optional radiation-transparent wall section 14 of the Deckensteiis
  • emitted electromagnetic waves 19 are more or less reflected by an inner wall portion of the housing 1 bounding the first outlet 3 and / or of the present in the region of this inner wall portion and the first outlet 3 solid 17, wherein at least a portion of this reflected electromagnetic radiation 19 through again the optional radiation-transparent wall portion 14 of the housing 1 passes and impinges on a receiver 16 of the radar device 13.
  • By evaluating one or more values which characterize this re-received electromagnetic radiation and a comparison with one or more reference values it is possible to deduce the amount of solid 17 present in the monitored area. This allows the detection of adhesions 18 of the solid 17 to the corresponding inner wall portion of the housing 1 and a measurement of a layer increase of these adhesions.

Landscapes

  • Cyclones (AREA)

Abstract

Dispositif de séparation comprenant un boîtier (1) qui forme une entrée (2) destinée à un flux de mélange de matières, une première sortie (3) destinée à un premier flux partiel du mélange de matières et une deuxième sortie (5) destinée à un deuxième flux partiel du mélange de matières, caractérisé par un dispositif radar (13) qui est conçu et disposé de manière à permettre l'émission d'un rayonnement électromagnétique à travers un compartiment interne (8) délimité par le boîtier (1) en direction de la première sortie (3) et la réception de ce rayonnement électromagnétique sous forme de rayonnement réfléchi. Ainsi toute accumulation de matière peut être détectée dans la première sortie (3) et le dispositif de séparation peut être surveillé en termes d'imminence de bouchage.
EP16741554.6A 2015-07-06 2016-07-04 Dispositif de séparation et procédé de détection d'une accumulation de matière dans un tel dispositif de séparation Active EP3319731B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015110865.8A DE102015110865A1 (de) 2015-07-06 2015-07-06 Trennvorrichtung und Verfahren zum Detektieren einer Stoffansammlung in einer solchen Trennvorrichtung
PCT/EP2016/065719 WO2017005697A1 (fr) 2015-07-06 2016-07-04 Dispositif de séparation et procédé de détection d'une accumulation de matière dans un tel dispositif de séparation

Publications (2)

Publication Number Publication Date
EP3319731A1 true EP3319731A1 (fr) 2018-05-16
EP3319731B1 EP3319731B1 (fr) 2019-04-24

Family

ID=56507577

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16741554.6A Active EP3319731B1 (fr) 2015-07-06 2016-07-04 Dispositif de séparation et procédé de détection d'une accumulation de matière dans un tel dispositif de séparation

Country Status (4)

Country Link
EP (1) EP3319731B1 (fr)
DE (1) DE102015110865A1 (fr)
DK (1) DK3319731T3 (fr)
WO (1) WO2017005697A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019102183A1 (de) 2019-01-11 2020-07-16 Ika-Werke Gmbh & Co. Kg Feststoffzuführvorrichtung und Mischanordnung
EP4449039B1 (fr) 2021-12-15 2026-03-18 Abb Schweiz Ag Procédé et appareil d'évaluation du soufre résiduel dans un préchauffeur de ciment, procédé d'évaluation de blocage d'un préchauffeur de ciment et préchauffeur de ciment
GB2640889A (en) * 2024-05-08 2025-11-12 Vulco Sa Hydrocyclones

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2038045C3 (de) * 1970-07-31 1981-12-10 Siemens AG, 1000 Berlin und 8000 München Zyklon
FR2194489A1 (en) * 1972-08-03 1974-03-01 Loison Robert Split bowl centrifuge equipped with electronic sensor - to detect sludge level and at a predetermined level actuate control circuit
DE102010064394A1 (de) * 2010-12-30 2012-07-05 Endress + Hauser Gmbh + Co. Kg Verfahren und Vorrichtung zum Ausrichten eines Messgerätes
FR2984765B1 (fr) * 2011-12-22 2014-02-28 Iteca Socadei Sas Dispositif de detection des risques de blocage d'un cyclone dans la fabrication du ciment
DE102012003948B4 (de) 2012-03-01 2014-04-17 Krohne Messtechnik Gmbh Nach dem Radar-Prinzip arbeitendes Füllstandmesssystem
DE102012016120B4 (de) * 2012-08-15 2017-12-07 Krohne Messtechnik Gmbh Mikrowellenfenster und nach dem Radar-Prinzip arbeitendes Füllstandmesssystem
WO2015005998A1 (fr) * 2013-07-11 2015-01-15 Bear Creek Services, Llc Appareil de traitement de fluide de forage

Also Published As

Publication number Publication date
DK3319731T3 (da) 2019-07-15
WO2017005697A1 (fr) 2017-01-12
DE102015110865A1 (de) 2017-01-12
EP3319731B1 (fr) 2019-04-24

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