EP0278793A1 - Method and means for preventing clogging-up of the inner walls of a cyclone, and cyclone comprising said means - Google Patents
Method and means for preventing clogging-up of the inner walls of a cyclone, and cyclone comprising said means Download PDFInfo
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- EP0278793A1 EP0278793A1 EP88400011A EP88400011A EP0278793A1 EP 0278793 A1 EP0278793 A1 EP 0278793A1 EP 88400011 A EP88400011 A EP 88400011A EP 88400011 A EP88400011 A EP 88400011A EP 0278793 A1 EP0278793 A1 EP 0278793A1
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- Prior art keywords
- cyclone
- materials
- internal face
- flow
- nozzle
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- 238000000034 method Methods 0.000 title claims abstract description 11
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 8
- 238000000926 separation method Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 229910000497 Amalgam Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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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
- B04C5/00—Apparatus in which the axial direction of the vortex is reversed
- B04C5/22—Apparatus in which the axial direction of the vortex is reversed with cleaning means
Definitions
- the invention relates to a method for preventing clogging of the internal walls of cyclones.
- cyclones have their suction opening opening above a bed of crushed materials in order, by vacuum, to take a certain category and more particularly that of the products of lower density which then crosses the cyclone at the outlet of which, separated from the gas flow having ensured its transport, the materials of this category are received for example in a container such as a hopper.
- such a cyclone essentially consists of a cylindrical body on the one hand extended downwards by a frustoconical part communicating with a receiving hopper and, on the other hand, closed at its upper end by a cover traversed by a tube central said discharge tube descending inside the cylindrical body.
- the gas is generally admitted tangentially into the cyclone to impart a helical flow to it from the upper part of the cylindrical section.
- the separation of the materials transported by the flow is mainly ensured by the sudden deviation of this flow at the base of the cyclone and a drop in speed of this said flow.
- the accuracy of such a separation device as to the category of product aspirated is a function of many parameters such as the section and the gas flow rate.
- the implementation of the cyclone is generally carried out empirically in order to grant it operating conditions corresponding to the desired result.
- the pipes of the cyclones and, more particularly, their supply sheath, one of its ends of which materializes the suction orifice are, by the passage of the gaseous flow laden with materials, also subjected to a deposit of these said materials transported by the gas flow.
- the subject of the invention is a method of unclogging notably characterized in that in addition to the continuous gas flow transporting the materials, at least in one of the zones of the path of the materials, gas is periodically discharged in the vicinity of the internal face of the enclosure of the cyclone and of the pipes such as at least one of its sheaths, and this tangentially to the internal face of the said enclosure.
- the means for implementing the unclogging process are mainly characterized in that they include: at least one discharge nozzle oriented tangentially to the internal face of the external wall of the cyclone, as well as its pipes and, - A means allowing, in addition to the continuous gas flow transporting the materials, to suddenly discharge gas through said nozzle.
- an installation 1 which, to separate, from a bed 2 of an amalgam of materials, a certain category 3 of the latter and more particularly those of lower density, comprises at least one cyclone 4.
- these cyclones 4 are formed by a cylindrical enclosure 5 inside which and tangentially with respect to the internal face 6 of its external wall opens, through one of its ends 7, 8 at least one pipe such as a sheath 9, the other end 8 of which is situated substantially above the bed 2 of the above-mentioned materials.
- the gas flow 18 charged with the aspirated materials 3 must follow a helical flow descending substantially to the lower end 15 of the evacuation tube 14 then be deviated abruptly to gain this tube 14 and finally flow helically going up inside the evacuation tube 14.
- the gas flow transporting the aspirated materials takes place according to a transient flow which, due to the path followed inside the sheath 9 in particular of its abrupt variations in direction as well as the roughness of the internal walls of said sheath, exhibits at all points in this flow a radiant of speed such that vortex phenomena occur which favor the deposition of materials on at least one of the internal walls of the sheath.
- gas 20 is discharged periodically and suddenly and this tangentially to the internal face 6 of the enclosure 5.
- the means for implementing the unclogging process are mainly characterized in that they include: at least one nozzle 21 which opens tangentially to the internal face 6 of the enclosure 5 of the cyclone 4, as well as its pipes and, a means 24 allowing, in addition to the continuous gas flow transporting the materials, to periodically discharge gas through the nozzle 21.
- the outlet orifice 22 of the nozzle has an oblong shape parallel to the axis of the cyclone and coincides with the internal face 6 of the cyclone 4.
- the outlet orifice 22 of the ejection nozzle 21 is oriented in the same direction as the downward helical flow of the gas flow 18 charged with the aspirated materials 3.
- the nozzle 21 in order to release through the nozzle 21 a sudden discharge of a volume of gas, the nozzle 21 is by its inlet port 23 opposite its outlet port 22 connected to an air cannon 26 of known type FR-A-2,074,786.
- This by its air supply from a distribution network makes it possible to accumulate the volume of gas and by a command using a control system such as a programmable automaton, to release, at preset times and through the nozzle, the volume of gas accumulated.
- a control system such as a programmable automaton
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- Cyclones (AREA)
Abstract
Description
L'invention se rapporte à un procédé en vue d'éviter le colmatage des parois internes des cyclones.The invention relates to a method for preventing clogging of the internal walls of cyclones.
Elle se rapporte également aux moyens mettant en oeuvre ce procédé ainsi qu'aux cyclones pourvus de ces moyens.It also relates to the means implementing this process as well as to the cyclones provided with these means.
Classiquement, utilisés dans des installations de séparation de produit de tout venant, les cyclones ont leur orifice d'aspiration s'ouvrant au dessus d'un lit de matériaux broyés pour, par dépression, prélever une certaine catégorie et plus particulièrement celle des produits de moindre densité qui traverse ensuite le cyclone en sortie duquel, séparés du flux gazeux ayant assuré son transport, les matériaux de cette catégorie sont réceptionnés par exemple dans un contenant tel une trémie.Conventionally, used in product separation installations for all comers, cyclones have their suction opening opening above a bed of crushed materials in order, by vacuum, to take a certain category and more particularly that of the products of lower density which then crosses the cyclone at the outlet of which, separated from the gas flow having ensured its transport, the materials of this category are received for example in a container such as a hopper.
Généralement, un tel cyclone est essentiellment constitué d'un corps cylindrique d'une part prolongé vers le bas par une partie tronconique communiquant avec une trémie de réception et, d'autre part, fermé à son extrémité supérieure par un couvercle traversé par un tube central dit tube d'évacuation descendant à l'intérieur du corps cylindrique.Generally, such a cyclone essentially consists of a cylindrical body on the one hand extended downwards by a frustoconical part communicating with a receiving hopper and, on the other hand, closed at its upper end by a cover traversed by a tube central said discharge tube descending inside the cylindrical body.
Le gaz est généralement admis tangentiellement dans le cyclone pour lui imprimer un écoulement hélicoïdal depuis la partie supérieure de la section cylindrique.The gas is generally admitted tangentially into the cyclone to impart a helical flow to it from the upper part of the cylindrical section.
A la partie inférieure du cyclone, le flux gazeux est brutalement dévié pour remonter par le tube central : c'est ainsi qu le flux gazeux doit donc au préalable suivre un écoulement hélicoïdal descendant jusqu'à un niveau proche du plan d'entrée du tube d'évacuation puis gagner la buse de sortie et enfin s'écouler hélicoïdalement en s'élevant dans le tube d'évacuation.At the bottom of the cyclone, the gas flow is suddenly diverted to go back up through the central tube: this is how the gas flow must therefore first follow a helical flow down to a level close to the plane of entry of the tube evacuation then gain the outlet nozzle and finally flow helically by rising into the evacuation tube.
La séparation des matériaux transportés par le flux est assurée principalement par la déviation brutale de ce flux à la base du cyclone et une chute de vitesse de ce dit flux.The separation of the materials transported by the flow is mainly ensured by the sudden deviation of this flow at the base of the cyclone and a drop in speed of this said flow.
En conséquence, la vitesse des matériaux ainsi transportés chute elle aussi et les soumet donc auc lois de la gravitation permettant ainsi leur réception à la base du cyclone.Consequently, the speed of the materials thus transported also drops and therefore subjects them to the laws of gravitation thus allowing their reception at the base of the cyclone.
La précision d'un tel dispositif de séparation quant à la catégorie de produit aspiré est fonction de nombreux paramètres tels la section et le débit gazeux.The accuracy of such a separation device as to the category of product aspirated is a function of many parameters such as the section and the gas flow rate.
La mise en oeuvre du cyclone s'effectue généralement empiriquement afin de lui octroyer des conditions de fonctionnement correspondant au résultat recherché.The implementation of the cyclone is generally carried out empirically in order to grant it operating conditions corresponding to the desired result.
Cependant, en raison du mouvement particulier du flux transportant les matériaux prélevés, ces derniers sont sousmis à une force centrifuge qui les plaquent contre la face interne de la paroi du cyclone entrainant le colmatage de la section de passage du flux.However, due to the particular movement of the flow transporting the sampled materials, the latter are subjected to a centrifugal force which presses them against the internal face of the wall of the cyclone causing the blockage of the flow passage section.
En outre, il est à noter que les tuyauteries des cyclones et, plus particulièrement, leur gaine d'alimentation dont une de ses extrémités matérialise l'orifice d'aspiration, sont, par le passage du flux gazeux chargé des matériaux, soumises elles aussi à un dépôt de ces dits matériaux transportés par le flux gazeux.In addition, it should be noted that the pipes of the cyclones and, more particularly, their supply sheath, one of its ends of which materializes the suction orifice, are, by the passage of the gaseous flow laden with materials, also subjected to a deposit of these said materials transported by the gas flow.
En raison de ce colmatage, les conditions de fonctionnement préalablement établies sont modifiées et, plus particulièrement, une diminution de section du cyclone est responsable d'un accroissement de la vitesse du flux transportant le produit et avec elle de la dépression à l'entrée d'où, une extraction d'une plus large catégorie de produit.Because of this clogging, the previously established operating conditions are modified and, more particularly, a reduction in cross section of the cyclone is responsible for an increase in the speed of the flow transporting the product and with it of the vacuum at the inlet d where, an extraction from a wider product category.
Pour éviter cet inconvénient, il est, à ce jour, périodiquement nécessaire de décolmater manuellement l'intérieur des cyclones ainsi que de leurs tuyauteries.To avoid this drawback, it is, to date, periodically necessary to manually unclog the interior of the cyclones as well as their pipes.
Cependant, ce travail est long et fastidieux.However, this work is long and tedious.
En outre, en regard de la hauteur représentée par ces cyclones, des accidents relatifs à la chute d'agglomérats sont à déplorer. Un résultat que l'invention vise à obtenir est un procédé de décolmatage qui, tout en évitant les inconvénients précités, permet de décolmater efficacement les parois internes des cyclones et leurs tuyauteries et, se faisant, de conserver les paramètres initiaux de séparation.In addition, with regard to the height represented by these cyclones, accidents relating to the fall of agglomerates are to be deplored. One result which the invention aims to obtain is a unclogging process which, while avoiding the aforementioned drawbacks, makes it possible to effectively unclog the internal walls of the cyclones and their pipes and, in doing so, to keep the initial separation parameters.
A cet effet, l'invention a pour objet un procédé de décolmatage notamment caractérisé en ce qu'en plus du flux gazeux continu transportant les matériaux, au moins en une des zones du parcours des matériaux, on décharge périodiquement du gaz au voisinage de la face interne de l'enceinte du cyclone et des tuyauteries telles au moins une de ses gaines, et ce tangentiellement à la face interne de la dite enceinte.To this end, the subject of the invention is a method of unclogging notably characterized in that in addition to the continuous gas flow transporting the materials, at least in one of the zones of the path of the materials, gas is periodically discharged in the vicinity of the internal face of the enclosure of the cyclone and of the pipes such as at least one of its sheaths, and this tangentially to the internal face of the said enclosure.
Les moyens en vue de la mise en oeuvre du procédé de décolmatage sont principalement caractérisés en ce qu'ils comprennent :
- au moins une buse de décharge orientée tangentiellement à la face interne de la paroi externe du cyclone, ainsi que de ses tuyauteries et,
- un moyen permettant, en plus du flux gazeux continu transportant les matériaux, de décharger brutalement du gaz au travers de la dit buse.The means for implementing the unclogging process are mainly characterized in that they include:
at least one discharge nozzle oriented tangentially to the internal face of the external wall of the cyclone, as well as its pipes and,
- A means allowing, in addition to the continuous gas flow transporting the materials, to suddenly discharge gas through said nozzle.
L'invention sera mieux comprise à l'aide de la description ci-après faite à titre d'exemple non limitatif en regard du dessin ci-annexé qui représente schématiquement:
- - figure 1 : vue en coupe partielle d'une installation,
- - figure 2 : vue en coupe partielle selon II-II de la figure 1.
- - Figure 1: partial sectional view of an installation,
- - Figure 2: partial sectional view along II-II of Figure 1.
En se reportant au dessin, on voit une installation 1 qui, pour séparer, d'un lit 2 d'un amalgame de matériaux, une certaine catégorie 3 de ces derniers et plus particulièrement ceux de moindre densité, comprend au moins un cyclone 4.Referring to the drawing, we see an
Ces installations sont aujourd'hui d'utilisation courante sur les sites de traitement de tout venant.These facilities are now in common use at treatment sites for all comers.
Généralement, ces cyclones 4 sont formés d'une enceinte 5 cylindrique à l'intérieur de laquelle et tangentiellement par rapport à la face interne 6 de sa paroi externe débouche, par une 7 de ses extrémités 7, 8 au moins une tuyauterie telle une gaine 9 dont l'autre extrémité 8 est située sensiblement au dessus du lit 2 des matériaux précités.Generally, these cyclones 4 are formed by a
En outre, alors que la base 10 de l'enceinte 5 est prolongée par une partie tronconique 11 débouchant par exemple dans une trémie de réception, son sommet 12 est fermé par un couvercle 13 qui sensiblement en son centre est muni d'un tube d'évacuation 14 dont une 15 de ses extrémités 15, 16 descend à l'intérieur du cyclone 4 alors que l'autre 16 est raccordée à un moyen 17 en vue de créer une dépression à l'intérieur du dit cyclone 4 et jusque dans la gaine 9.In addition, while the base 10 of the
Ainsi donc, lors de son fonctionnement, la dépression créée à l'intérieur du cyclone 4 et de la gaine 9 dont l'extrémité 8 est située au voisinage du lit 2 de matériaux, provoque une aspiration des matériaux de moindre densité qui, avec le flux gazeux 18, s'engouffrent à l'intérieur du cyclone tangentiellement à sa face interne 6.Thus, during its operation, the depression created inside the cyclone 4 and the sheath 9, the end 8 of which is located in the vicinity of the
Pour sortir du cylone 4, le flux gazeux 18 chargé des matériaux aspirés 3 doit suivre un écoulement hélicoïdal descendant sensiblement jusqu'à l'extrémité inférieure 15 du tube d'évacuation 14 puis être dévié brutalement pour gagner ce tube 14 et enfin s'écouler hélicoïdalement en montant à l'intérieur du tube d'évacuation 14.To leave the cylone 4, the
La déviation brutale du flux et sa perte de vitesse permet aux matériaux d'être entrainés par les effets de la gravitation.The sudden deviation of the flow and its loss of speed allows the materials to be entrained by the effects of gravitation.
En conséquence, ceux-ci tombent pour s'amonceler dans la partie tronconique 11 située à la base 10 du cyclone 4 tandis que le gaz privé des matériaux est canalisé par le tube d'évacuation 14 à l'extérieur du cyclone 4.Consequently, these fall to pile up in the
Inévitablement, on note, en fonction du mouvement particulier précédemment énoncé du flux gazeux chargé des matériaux 3 aspirés, un frottement tangentiel de ceux-ci 3 sur la face interne 6 de l'enceinte 5 constituant le cyclone 4.Inevitably, there is a tangential friction of these 3 on the
En conséquence, un phénomène d'adhérence de matériaux sur cette face 6 apparaît et provoque la formation d'une croute 19 et ce d'autant plus rapidement que le pouvoir agglomérant de ces matériaux 3 est important.Consequently, a phenomenon of adhesion of materials to this
Cette croute colmate la section de passage du flux et modifie les conditions de fonctionnement de cyclone 4 et, de ce fait, altère considérablement la précision de la séparation.This crust clogs the flow passage section and modifies the operating conditions of cyclone 4 and, therefore, considerably affects the precision of the separation.
En outre, il est à noter que cette perturbation des conditions de fonctionnement du cyclone est accentuée par le colmatage de ses tuyauteries telles la gaine 9.In addition, it should be noted that this disturbance of the operating conditions of the cyclone is accentuated by the clogging of its pipes such as the sheath 9.
En effet, à l'intérieur de celle-ci, le flux gazeux transportant les matériaux aspirés s'effectue selon un écoulement transitoire qui, en raison du chemin suivi à l'intérieur de la gaine 9 notamment de ses brusques variations de direction ainsi que de la rugosité des parois internes de la dite gaine, présente en tout point de cet écoulement un radiant de vitesse tel qu'il se produit des phénomènes de tourbillons favorisant le dépôt des matériaux sur au moins une des parois internes de la gaine.Indeed, inside the latter, the gas flow transporting the aspirated materials takes place according to a transient flow which, due to the path followed inside the sheath 9 in particular of its abrupt variations in direction as well as the roughness of the internal walls of said sheath, exhibits at all points in this flow a radiant of speed such that vortex phenomena occur which favor the deposition of materials on at least one of the internal walls of the sheath.
Ainsi donc, pour retrouver les conditions de fonctionnement préalablement établi, il faut pratiquer un décolmatage.Thus, to find the operating conditions previously established, it is necessary to practice unclogging.
Au lieu d'effectuer manuellement le décolmatage selon l'invention, en ce qu'en plus du flux gazeux continu transportant les matériaux, au moins au voisinage de la face interne 6 de l'enceinte 5 du cyclone 4 et de ses tuyauteries telles au moins une de ses gaines 9, on décharge du gaz 20 périodiquement et brutalement et ce tangentiellement à la face interne 6 de l'enceinte 5.Instead of manually unclogging according to the invention, in that in addition to the continuous gas flow transporting the materials, at least in the vicinity of the
Les moyens en vue de la mise en oeuvre du procédé de décolmatage sont principalement caractérisés en ce qu'ils comprennent :
- au moins une buse 21 qui débouche tangentiellement à la face intern 6 de l'enceinte 5 du cyclone 4, ainsi que de ses tuyauteries et,
- un moyen 24 permettant, en plus du flux gazeux continu transportant les matériaux, de décharger périodiquement du gaz au travers de la buse 21.The means for implementing the unclogging process are mainly characterized in that they include:
at least one
a
Dans une forme préférée de réalisation et afin d'obtenir un effet de décollement de la croute 19 de la face interne 6 de l'enceinte 5 du cyclone 4, l'orifice de sortie 22 de la buse a une forme oblongue parallèle à l'axe du cyclone et coincide avec la face interne 6 du cyclone 4.In a preferred embodiment and in order to obtain a detachment effect from the
Il apparaît clairement que le jet de gaz 20 issu de cet orifice de sortie 22 et alors admis à l'intérieur du cyclone 4 en jet d'épaisseur relativement faible s'insérant directement sous la croute 19 et, par conséquent, provoque un décollement de celle-ci.It clearly appears that the
Dans une forme avantageuse de réalisation, l'orifice de sortie 22 de la buse d'éjection 21 est orienté dans le même sens que l'écoulement hélicoïdal descendant du flux gazeux 18 chargé des matériaux aspirés 3.In an advantageous embodiment, the
Conformément à l'invention, afin de libérer au travers de la buse 21 une décharge brutale d'un volume de gaz, la buse 21 est par son orifice d'entrée 23 opposé à son orifice de sortie 22 raccordée à un canon à air 26 de type connu FR-A-2.074.786.According to the invention, in order to release through the nozzle 21 a sudden discharge of a volume of gas, the
Celui-ci, par son alimentation en air issu d'un réseau de distribution permet d'accumuler le volume de gaz et par une commande à l'aide d'un système de contrôle tel un automate programmable, de libèrer, à des instants préétablis et au travers de la buse, le volume de gaz accumulé.This, by its air supply from a distribution network makes it possible to accumulate the volume of gas and by a command using a control system such as a programmable automaton, to release, at preset times and through the nozzle, the volume of gas accumulated.
Claims (6)
- au moins une buse (21) débouchant tangentiellement à la face interne (6) de l'enceinte (5) du cyclone 4, ainsi que de ses tuyauteries et,
- un moyen (24) permettant en plus du flux gazeux continu transportant les matériaux de décharger périodiquement et brutalement du gaz (20) au travers de la buse (21).2. Means for implementing the method according to claim 1, characterized in that they comprise:
at least one nozzle (21) opening tangentially to the internal face (6) of the enclosure (5) of the cyclone 4, as well as its pipes and,
- A means (24) allowing in addition to the continuous gas flow transporting the materials to periodically and suddenly discharge gas (20) through the nozzle (21).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8701497A FR2610220B1 (en) | 1987-02-02 | 1987-02-02 | PROCESS WITH A VIEW TO AVOID BLOCKING OF THE INTERNAL WALLS OF CYCLONES, MEANS USING THE SAME AND CYCLONES PROVIDED WITH SUCH MEANS |
| FR8701497 | 1987-02-02 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP0278793A1 true EP0278793A1 (en) | 1988-08-17 |
Family
ID=9347668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP88400011A Withdrawn EP0278793A1 (en) | 1987-02-02 | 1988-01-05 | Method and means for preventing clogging-up of the inner walls of a cyclone, and cyclone comprising said means |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP0278793A1 (en) |
| FR (1) | FR2610220B1 (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0476169A1 (en) * | 1990-09-19 | 1992-03-25 | Erich Krämer | Method of cleaning a cyclone and cyclone apt to be cleaned using this method |
| GB2280624A (en) * | 1993-07-20 | 1995-02-08 | Koerber Ag | Method of and apparatus for cleaning a centrifugal separator |
| US6696137B2 (en) * | 1997-07-31 | 2004-02-24 | Smith International, Inc. | Woven and packed composite constructions |
| US7243744B2 (en) | 2003-12-02 | 2007-07-17 | Smith International, Inc. | Randomly-oriented composite constructions |
| US7441610B2 (en) | 2005-02-25 | 2008-10-28 | Smith International, Inc. | Ultrahard composite constructions |
| ITMI20120638A1 (en) * | 2012-04-18 | 2013-10-19 | Savio Macchine Tessili Spa | SEPARATION DEVICE FOR POWDERS FROM FILACCI FOR THE COLLECTION AND RECOVERY OF ROCKING AND WINDING MACHINES WITH SUCH A DEVICE |
| CN103447260A (en) * | 2013-09-25 | 2013-12-18 | 深圳市芭田生态工程股份有限公司 | Method for removing wall-bonded dust in cyclone separator |
| CN117619725A (en) * | 2023-12-29 | 2024-03-01 | 浙江凯弘环境技术有限公司 | A material flow separator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB947180A (en) * | 1958-08-22 | 1964-01-22 | Siemens Ag | Improvements in or relating to apparatus for separating a constituent from a stream of material |
| FR2074786A1 (en) * | 1970-01-28 | 1971-10-08 | Zyryanovsky Svintsovy | |
| DE2308425A1 (en) * | 1973-02-21 | 1974-08-29 | Heinz Hoelter | DEVICE FOR DETECTING AND SIMULTANEOUSLY REMOVING OBSTACLES IN CYCLONE OUTLETS |
| FR2263485A1 (en) * | 1974-03-06 | 1975-10-03 | Bayer Ag | |
| EP0094098A1 (en) * | 1982-05-12 | 1983-11-16 | KRW Energy Systems Inc. | High temperature cyclone separator for gasification system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1020164A1 (en) * | 1981-04-22 | 1983-05-30 | Белгородский технологический институт строительных материалов им.И.А.Гришманова | Method of protecting cyclone walls against dust sticking-on |
-
1987
- 1987-02-02 FR FR8701497A patent/FR2610220B1/en not_active Expired
-
1988
- 1988-01-05 EP EP88400011A patent/EP0278793A1/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB947180A (en) * | 1958-08-22 | 1964-01-22 | Siemens Ag | Improvements in or relating to apparatus for separating a constituent from a stream of material |
| FR2074786A1 (en) * | 1970-01-28 | 1971-10-08 | Zyryanovsky Svintsovy | |
| DE2308425A1 (en) * | 1973-02-21 | 1974-08-29 | Heinz Hoelter | DEVICE FOR DETECTING AND SIMULTANEOUSLY REMOVING OBSTACLES IN CYCLONE OUTLETS |
| FR2263485A1 (en) * | 1974-03-06 | 1975-10-03 | Bayer Ag | |
| EP0094098A1 (en) * | 1982-05-12 | 1983-11-16 | KRW Energy Systems Inc. | High temperature cyclone separator for gasification system |
Non-Patent Citations (1)
| Title |
|---|
| SOVIET INVENTIONS ILLUSTRATED, semaine 84/12, 2 mai 1984, résumé no. 84-073407/12, Derwent Publications Ltd, Londres, GB; & SU-A-1 020 164 (BELGOROD CONS MAT) 30-05-1983 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0476169A1 (en) * | 1990-09-19 | 1992-03-25 | Erich Krämer | Method of cleaning a cyclone and cyclone apt to be cleaned using this method |
| WO1992004984A1 (en) * | 1990-09-19 | 1992-04-02 | Kraemer Erich | Process for cleaning a cyclone filter, and cyclone filter which can be cleaned in this way |
| GB2280624A (en) * | 1993-07-20 | 1995-02-08 | Koerber Ag | Method of and apparatus for cleaning a centrifugal separator |
| GB2280624B (en) * | 1993-07-20 | 1998-02-25 | Koerber Ag | Method of and apparatus for cleaning a centrifugal separator |
| US6696137B2 (en) * | 1997-07-31 | 2004-02-24 | Smith International, Inc. | Woven and packed composite constructions |
| US7243744B2 (en) | 2003-12-02 | 2007-07-17 | Smith International, Inc. | Randomly-oriented composite constructions |
| US7392865B2 (en) | 2003-12-02 | 2008-07-01 | Smith International, Inc. | Randomly-oriented composite constructions |
| US7441610B2 (en) | 2005-02-25 | 2008-10-28 | Smith International, Inc. | Ultrahard composite constructions |
| US7757788B2 (en) | 2005-02-25 | 2010-07-20 | Smith International, Inc. | Ultrahard composite constructions |
| ITMI20120638A1 (en) * | 2012-04-18 | 2013-10-19 | Savio Macchine Tessili Spa | SEPARATION DEVICE FOR POWDERS FROM FILACCI FOR THE COLLECTION AND RECOVERY OF ROCKING AND WINDING MACHINES WITH SUCH A DEVICE |
| EP2653423A1 (en) * | 2012-04-18 | 2013-10-23 | Savio Macchine Tessili S.p.A. | Separation device of dust from pieces of yarn for the collection and recovery of winding waste and winding machine wih such device |
| CN103447260A (en) * | 2013-09-25 | 2013-12-18 | 深圳市芭田生态工程股份有限公司 | Method for removing wall-bonded dust in cyclone separator |
| CN103447260B (en) * | 2013-09-25 | 2016-05-18 | 深圳市芭田生态工程股份有限公司 | A kind of method of removing knot wall dust in cyclone separator |
| CN117619725A (en) * | 2023-12-29 | 2024-03-01 | 浙江凯弘环境技术有限公司 | A material flow separator |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2610220A1 (en) | 1988-08-05 |
| FR2610220B1 (en) | 1989-06-09 |
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