WO1997047373A1 - Precipitator for removing liquids, in particular pollutants, from a stream of gas - Google Patents
Precipitator for removing liquids, in particular pollutants, from a stream of gas Download PDFInfo
- Publication number
- WO1997047373A1 WO1997047373A1 PCT/EP1997/002970 EP9702970W WO9747373A1 WO 1997047373 A1 WO1997047373 A1 WO 1997047373A1 EP 9702970 W EP9702970 W EP 9702970W WO 9747373 A1 WO9747373 A1 WO 9747373A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- openings
- chamber
- separator according
- chambers
- cladding tube
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/06—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by reversal of direction of flow
Definitions
- the present invention relates to a separator for separating liquids, in particular pollutants such as oil mist, from a gas stream, which has a channel system made up of surface elements, through which the gas flow is guided from an inlet side to an outlet side, the surface elements being partially be flown to.
- liquids in the form of liquids that are finely dispersed in the exhaust air, represent a particular problem since, due to low surface tension and cohesion, the smallest Droplets (fluid particles) change shape and size.
- Such liquids cannot be separated from the exhaust air with the usual suspended matter i Item, for example nonwovens, since liquids clog such filters and thus reduce the air volume flow.
- oil mists are of particular importance, because due to their high viscosity they cause filter clogging.
- a special separator of the type mentioned at the outset is known, as described for example in DE-A1 41 31 988.5.
- This separator is constructed from plate-shaped, cross-flow, elongated elements which have an X-shape in cross section.
- Several such profile parts are arranged next to one another, with the arms or free legs nested one inside the other.
- inlet channels and outlet channels are formed over the length of the profiles or the arms of the profiles.
- the arms of the respectively adjacent X-profiles result in an elongated chamber which initially widens from the inlet side and then narrows towards the outlet side or the outlet channel again.
- a separator constructed from such profiles has proven itself in use. However, the problem arises here that if the gas flow is not guided exactly 90 ° to the profile axis, the degree of cleaning deteriorates considerably (approximately by 60%). This means that large elements are necessary.
- This separator can only be used for droplet sizes (fluid particles)> 3.0 ⁇ m. In addition, droplets which have separated out are entrained at very high flow velocities of the gas stream.
- DE 40 16 582 proposes building a cross-flow separator from profile elements which have a wave shape in cross section. These profiles, for example with four U-shaped opening areas in each case, are arranged with their open sides opposite one another and slightly spaced apart such that the free legs of the profile cross sections interlock; the opposing profiles are each offset from one another.
- a flow inlet slot is formed between two adjacent profiles, with a web of the opposite profile being aligned in the center. The one over the slot entering gas flow is divided by this web, in order to then enter the U-shaped recess lying to the left and right of this web.
- the gas flow is deflected and directed to the opposite profile cross section of the entry-side profile part, there again deflected and directed back to the exit-side profile cross section.
- Such a deflection of the gas flow between the mutually offset and opposite U-shaped depressions can take place several times. After this multiple deflection, the gas flow then emerges from a flow outlet channel which is formed between two profile cross sections on the outlet side. Because the gas flow with the liquid particles contained therein impacts the walls of the profile cross sections, the liquid is precipitated on the wall surfaces, which then runs down under the force of gravity on the wall surfaces and can be collected at the end of the profiles.
- the separators described above produce a defined gas flow and the separation principle is based on the fact that the gas flow in the channel system occurs on wall surfaces, in order to thereby precipitate the liquid particles in the gas flow on the wall surfaces. With such separators, only liquid particles that are dispersed in the gas flow can be separated, which have a particle size larger than about 3.0 ⁇ m.
- the present invention is based on the object of creating a separator which, despite a simple construction, has a complex chamber system and which is particularly suitable for also separating liquid particles, in particular oil mist particles, with a size in the range from 1 to 3 ⁇ m.
- a separator of the known type in that at least two chambers, an inlet chamber and an outlet chamber, are formed within an outer cladding tube through which the gas flow passes in succession, these two chambers through at least one partition, in the direction the axis of the cladding tube, which has connecting openings, are separated from each other.
- tubular components can be used for the cladding tube, which can be produced, for example, from thin sheet metal or thin plastic parts. Wall parts are then inserted into the tubular cladding tube, which subdivide the interior of the cladding tube into the at least two chambers, the inlet chamber and the outlet chamber.
- the gas flow is introduced via inlet openings, which are provided in the wall part delimiting the entry chamber to the outside, where the gas flow can expand and strong turbulence occurs.
- the gas stream is transferred from the inlet chamber via connection openings into the outlet chamber, where a renewed expansion takes place behind the connection openings, which in turn causes a strong swirl.
- the gas flow then emerges from the outlet chamber via outlet openings in the outer wall of the cladding tube. Due to the strong turbulence of the gas flow in the at least two chambers, a strong interaction of the gas flow loaded with liquid particles with the respective chamber walls is brought about, which results in a strong precipitation of the liquid particles on the chamber walls.
- the chambers are delimited on the outside by the cladding tube.
- Partitions can be easily inserted into this tube.
- Such partitions can be manufactured separately from the cladding tube, provided with connecting openings which connect the inlet chamber with the outlet chamber.
- the interior of the cladding tube is divided into two halves, ie into the inlet chamber and the outlet chamber.
- the partition is preferably arranged to run in the axis of the cladding tube, so that the interior of the cladding tube is divided into two identical, semi-circular cross-sections (in the case of a cladding tube with a circular cross-section).
- the inlet opening (s) into the inlet chamber and the outlet opening (s) in the outlet chamber, in order to discharge the gas flow from the outlet chamber are preferably formed near and along the partition.
- the gas flow is introduced into the inlet chamber via the inlet openings parallel to the dividing wall, flowing along the same, until it strikes the opposite wall regions of the cladding tube and is deflected there.
- the connecting openings between the inlet chamber and the outlet chamber are then preferably formed approximately in the middle of the partition, so that their axis is perpendicular to the direction of flow of the gas flow entering the inlet chamber.
- the gas flow then passes through the Connection openings in the outlet chamber, then impact there on the walls of the cladding tube, are deflected and find their way through the outlet openings with strong turbulence.
- the gas flow first enters the first chamber via inlet openings, from there via the connecting openings in the respective partition walls into the two other chambers which form outlet chambers, from where they pass through respective outlet openings in the outer wall emerge from the cladding tube. Because the gas flow is distributed from one inlet chamber into two outlet chambers, the flow velocity slows down considerably, so that an expansion of the gas flow in the two outlet chambers is achieved, which results in a high separation rate of fluid particles on the wall regions of the cladding tube and the Partition walls in the two exit chambers.
- the cladding tube interior is divided into four chambers.
- This can be done in a simple manner by setting four wall parts in the interior of the cladding tube, which extend, preferably from the axis of the cladding tube, in a star or cross shape.
- These four dividing wall parts can be formed in a simple manner by two surface elements which are slotted from a narrow side to approximately the middle, so that these two dividing wall parts can be pushed together in the area of the slots, so that a cross or Star-shaped dividing wall arrangement results which does not require any essential fastening means in order to fix the two wall parts in this arrangement.
- This arrangement then receives one Sufficient stability if it is inserted into the cladding tube, with the outer, free longitudinal edges of the four partition walls lying against the inner wall of the cladding tube.
- a chamber forms the inlet chamber into which the gas flow is introduced via inlet openings in the wall of the cladding tube.
- the gas flow is then transferred, via a corresponding connection opening in the two partition walls delimiting this inlet chamber, into two central chambers, where a strong expansion occurs (the two central chambers together have a larger cross-sectional area than the individual inlet chamber ), after which, via a connection opening in the other two partition walls, the gas flow from the two middle chambers is transferred into an outlet chamber (here again the gas flow is compressed), which is then led out of the outlet chamber from the cladding tube via corresponding outlet openings .
- the partition walls are formed from flat surface elements.
- the partitions in order to guide the gas flow in such a way that a targeted formation of eddies is achieved, it can be advantageous for the partitions to be formed from tube segments, that is to say when viewed in cross section to the axis of the cladding tube, the partitions being oriented in this way are that the curvatures are oriented in the same direction as seen in the circumferential direction.
- two sheets which are bent in an S-shaped cross section are used for this purpose and are inserted into one another by means of the slots already explained above, so that a blade-like element results.
- inlet openings at the inlet chamber and several outlet openings at the outlet chamber there are several inlet openings at the inlet chamber and several outlet openings at the outlet chamber, as well as several connecting openings, which connect the inlet chamber and the outlet chamber connect to the central Mittelkam ⁇ mer provided.
- the flow rate can be adjusted via the size of the respective openings.
- Such openings are preferably aligned along the longitudinal plane that runs through the axis of the inner tube.
- the respective openings lying behind one another in the flow direction should be arranged offset to one another, so that the individual openings do not form an immediate, direct flow path from the inlet side to the outlet side. Rather, a labyrinth-hard flow path is generated by an offset from the inlet side to the outlet side.
- the openings preferably have a length in the direction of the axis of approximately 40 mm; the width is about 8 mm.
- the entire arrangement of the separator is constructed symmetrically to the longitudinal axis of the cladding tube.
- the efficiency of the separator can be increased by filling a gas-permeable agglomerate through the gas stream in the central chamber (s), if any, also in the outlet chamber. Liquid particles of 0.3 ⁇ m and less are also deposited on this agglomerate.
- a metal knitted fabric / knitted fabric is particularly suitable, which is adjustable in terms of its gas permeability.
- materials can be selected which are insensitive to aggressive gases.
- an oval cross section is also preferred.
- Such a cross section can be oriented with respect to the main flow direction so that the large semi-axis of the oval cross section runs perpendicular to the main flow direction. This achieves a wide space transversely to the main flow direction with which the gas flow enters the chamber, so that a large expansion area is achieved in the area of the chamber.
- connection openings which connect the inlet chamber and / or the outlet chamber and / or the central chamber, in projection perpendicular to the axis of the chamber, it can be advantageous to provide two rows of connection openings, wherein then the respective inlet openings and / or outlet openings are displaced in the middle between the two rows of connecting openings, as viewed in projection.
- the individual openings of the rows of openings should have an average diameter of approximately 6 to 8 mm with respect to an inner diameter of the cladding tube of approximately 40 mm, preferably with a flanged edge.
- This flare (preferably towards the inflow side) ensures that the gas flow enters and exits turbulently and continuously breaks off, which is advantageous for the efficiency of the separation of the liquid particles from the gas flow.
- known systems work very strongly in the not very effective area of laminar flow.
- a unit according to the invention of a single separator has been described above, which can be constructed very simply from tubular elements.
- a large-area separator arrangement can be composed of a large number of such individual separators by joining these individual separators together, with the axes of the cladding tubes running parallel to one another.
- the individual axes of the individual separators in this separator arrangement are preferably oriented in a common plane.
- the individual separators can be arranged directly abutting one another with their outer walls.
- the cladding tubes can be formed using corrugated sheets by connecting two corrugated sheets to the troughs one above the other, so that a plurality of tubes (cladding tubes) approximately circular in cross section are formed. Individual wall parts can then be inserted into these tubes.
- FIG. 1 shows a section of a separator, perpendicular to the axis of the cladding tube, which has a two-chamber system
- Figure 2 shows a cross section of a separator arrangement consisting of three
- FIG. 3 shows a section through a separator, perpendicular to the axis of the cladding tube, which has an oval cross section and is divided into a two-chamber system in its interior,
- FIG. 4 shows a cross section of a further separator, made perpendicular to the axis of the cladding tube, with a three-chamber system which is formed by walls running in a star shape from the cladding tube axis, two further individual separators being indicated,
- FIG. 5 shows a representation corresponding to FIG. 4, a four-chamber system being formed in the interior of the cladding tube by curved partitions,
- FIG. 6 shows a representation corresponding to FIG. 5, reduced in scale, wherein a filled agglomerate is indicated in the middle separator in two chambers,
- FIG. 7 shows a top view of the separator arrangement of FIG. 6 from the direction of the arrow VII in FIG. 6,
- FIG. 8 shows a representation corresponding to FIG. 5 with a four-chamber system which is formed by flat wall parts
- FIG. 9 shows schematically two flat wall parts with slots, in the area of which they are inserted into one another to form the partition arrangement shown in FIG. 8.
- the separator arrangement is composed of three tubular separator units 1. As the cross-sectional illustration in FIG. 1 shows, each separator unit 1 has an inlet chamber 2 and an outlet chamber 3, which are formed within a cladding tube 4.
- the cladding tube 4 has a circular cross section, the axis of the cladding tube 4 being designated by the reference number 5.
- the inlet chamber 2 and the outlet chamber 3 are separated by a partition 6, which is aligned along the axis 5 inside of the cladding tube 4 runs.
- the inlet chamber 2 and the outlet chamber 3 have approximately the same cross-sectional area.
- the gas stream to be cleaned is introduced into the inlet chamber 2 via inlet openings 8.
- the input opening 8 can be an elongated, narrow slot, or else a number of individual openings, preferably in the form of elongated holes, as are shown in more detail in FIGS. 7 and 9, which will be explained in the following.
- the entrance opening (or individual entrance openings) has an inward, i.e. flanged edge 9 into the inlet chamber 2 in order to achieve a nozzle-like effect and thus initially a directed flow of the gas stream flowing into the inlet chamber 2. This directed flow is initially supported by the fact that the inlet opening 8 is aligned directly adjacent to the partition 6, so that the gas flow is guided in a certain manner.
- connection openings 10 run approximately in the middle of the partition 6, i.e. in the area of the axis 5 of the cladding tube 4.
- connection openings 10 are also provided with a flanged edge 9 on the inflow side, which in turn serves to support a nozzle-like effect, with a flow branch behind the openings.
- the gas flow After the gas flow has entered the inlet chamber 2, the gas flow expands into the region of the inlet chamber 2 which widens to the left with strong swirling effects, so that the gas stream laden with liquid is in intensive contact with the inner walls of the inlet chamber 2. This causes the liquid carried along in the gas stream to precipitate on the wall surfaces. It is also advantageous here that the wall of the cladding tube 4, which delimits the inlet chamber 2, is curved, so that a vortex formation is supported thereby. The liquid then runs down along the wall surfaces of the inlet chamber 2 due to the vertical separator arrangement and is shown in a manner not shown on the underside of the arrangement Collection facility collected and discharged or disposed of.
- the gas flow then seeks its way from the inlet chamber 2 via the connecting openings 10 into the outlet chamber 3.
- the gas flow which initially enters is expanded again, with a result then also due to the semicircular cross-sectional shape of the outlet chamber 3 Swirling.
- the gas flow exits the outlet chamber 3 from the outlet chamber 3 through outlet openings 11. These outlet openings are provided with a flanged edge 9 on the inflow side.
- the outlet openings 11 (this can be a single slot or a series of individual holes, for example elongated holes) run adjacent and along the partition 6, as shown in FIG. 1.
- the inlet openings 8, the connection openings 10 and the outlet openings 11, or corresponding slots, have a width, designated by the reference symbol 12 in FIG. 2, of approximately 8 to 10 mm.
- a separator arrangement can be built up from individual separator units 1, as shown in FIG. 1.
- individual separator units 1 with their axes 5 in one plane, indicated by the dash-dotted line 13 in FIGS. 1 and 2, are aligned and cladding tube to cladding tube connected to one another.
- Large-area separator arrangements can hereby be built up. While the width of the separator arrangement is determined by the number of separator units 1, the length of these individual separators can be chosen without influencing the above-described effects which effect the separation.
- FIG. 3 shows an embodiment of a separator unit 14 with a two-chamber system that is comparable with FIG. 1, ie with an inlet chamber 2 and an outlet chamber 3, however, shown with an oval cross section of the cladding tube 4.
- the partition 6 is arranged within the cladding tube running through the axis 4 and along the large semi-axis of the oval cross-section. This Orientation of the partition within the cladding tube 4 with an oval cross-section has the advantage that, with the same total outflow area, the number of inlet and outlet openings 7 can be increased and thus more gases can be passed through.
- this arrangement results in a combination of several such separator units 14, as shown in FIG. 2, in a compact construction with a large number of individual separator units 14, which take up a relatively small space.
- FIG. 4 In order to further increase the separator effectiveness of the liquid carried by the gas flow, in particular oil mist, a three-chamber system as shown in FIG. 4 or a four-chamber system as shown in FIG FIG. 5 is shown to be advantageous.
- the separator unit 15 As shown in FIG. 4, three individual dividing walls 16 are used, which extend radially from the axis 5 to the cladding tube 4.
- the individual partitions 16 are spaced from each other at an angle of 120 °, so that there are three individual chambers, each with the same cross-sectional areas.
- the gas flow 7 is introduced into the first chamber 2, which forms the inlet chamber, via respective inlet openings 8, which have an edge 9 that is flared outwards. Due to the nozzle-like effect due to the flared inlet openings 8 and the direct flow branch, swirls are caused in the inlet chamber 2.
- connection openings 10 From the inlet chamber 2, the gas flow leads through the rows of openings in the form of connection openings 10, which are formed in the two partition walls 16, into the left and right outlet chambers 3 behind them. Behind the connection openings 10, as already explained in the embodiments described above , an expansion of the gas flow, which in turn leads to strong turbulence, with the result that liquid carried along by the gas flow is precipitated on the wall surfaces.
- the gas flow passes out of the two outlet chambers 3 in each case a row of exit openings 11, with inwardly flared edges, which are also formed on the connection openings 10, to the outside.
- separator units as described above and will be described below can be used to separate liquid particles with sizes in particular from 0.3 ⁇ m.
- FIG. 5 shows a separator unit 17 which is constructed in principle in the same way as the three-chamber system of the separator unit 15 of FIG. 4.
- this separator unit 15 four partition walls 16 run radially from the axis 5 of the cladding tube 4 outwards towards the cladding tube 4.
- These four dividing walls 16, which are distributed at equal angular distances around the circumference of the cladding tube 4, are additionally curved, each in the form of a tube segment surface, so that there is a fan blade-like structure, seen in cross section.
- the gas flow 7 is fed via a row of inlet openings 8 into the first chamber, which serves as an inlet chamber 2, and from there via the two adjacent partition walls 16 and the respective two rows of connection openings 10 formed therein into the chambers behind , which form central chambers 18, are introduced where the gas flows entering are expanded, and are transferred from there via connecting openings 10 in the two rear partition walls 16 into a common outlet chamber 3.
- a separator unit with a four-chamber system which is also shown schematically with reference to the embodiment in FIG. 8, has the advantage that the gas flow is expanded several times at the transitions between the individual chambers, which is what leads to an increased separation rate of liquid particles in the gas flow.
- FIG. 6 schematically shows the separator unit 17 of FIG. 5 with two adjacent separator units, aligned along a common plane 13 with their individual axes 5, on a reduced scale.
- an agglomerate 25 in the form of a knitted metal or metal knitted fabric or else in the form of metal wool, through which the gas flow must pass, is additionally filled in the two central chambers 18.
- liquid which is carried by the gas stream, knocked down, so that it then runs down to the lower end of the middle chamber 3 and can be disposed of. With this arrangement, liquid particles with sizes from 0.1 ⁇ m can also be separated.
- FIG. 7 which shows a view in the direction of arrow VII of FIG. 6, the individual entrance openings 8 can be seen in a top view.
- These inlet openings are elongated holes with a flanged edge 9, which are arranged with their longitudinal extension running in the direction of the axis 5 of the cladding tubes 4.
- the openings 8 have a length denoted by the reference number 19 in FIG. 7, of approximately 20 mm, while the width, denoted by the reference number 20, is 8 to 10 mm.
- the diameter of a cladding tube 4 of the separator unit 17 of FIGS. 6 and 9, which is shown approximately to scale, with the reference symbol 21, is approximately 40 mm.
- FIG. 8 again shows an installation of a four-chamber system of a separator unit 22 which is simplified compared to FIG. 5, the same reference numerals being used for the individual chambers and components with which the corresponding parts also apply in the embodiment in FIG 5 are used.
- the four-chamber system with an inlet chamber 2, two middle chambers 18 and an outlet chamber 3, each of which has an angular segment of 90 ° in cross section, is made up of two partition wall parts 16, which are shown in the blank in FIG. 9.
- These dividing wall parts 16 are flat parts, for example made of sheet metal or plastic, which are formed in two rows of openings which represent the respective connecting openings 10.
- Each of these connecting parts 16 has a longitudinal slot 23 in the middle, which extends from an end face 24 to the middle of the respective connecting part 16.
- These two connecting parts 16 are identical parts, which can be stamped, for example, but for better clarification of the assembly, the right connecting part 16 is shown rotated relative to the connecting part 16 shown on the left.
- the two partition wall parts 16, as shown in FIG. 9 are along the two Slits 23 inserted into one another, so that the slots 23 overlap the other partition part 16, so that a cross-shaped arrangement results in cross section. This arrangement can then be inserted into the cladding tube 4, so that the four-chamber system can be easily created.
- the structure of the partition wall parts 16, which is shown in FIG. 9, can also be used for the partition walls 16 of the embodiment of FIG. 5 which are S-shaped in cross section.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Separating Particles In Gases By Inertia (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP97927154A EP0925103A1 (en) | 1996-06-10 | 1997-06-09 | Precipitator for removing liquids, in particular pollutants, from a stream of gas |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19623178.7 | 1996-06-10 | ||
DE1996123178 DE19623178C2 (en) | 1996-06-10 | 1996-06-10 | Separator for separating liquids, especially pollutants, from a gas stream |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997047373A1 true WO1997047373A1 (en) | 1997-12-18 |
Family
ID=7796571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP1997/002970 WO1997047373A1 (en) | 1996-06-10 | 1997-06-09 | Precipitator for removing liquids, in particular pollutants, from a stream of gas |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0925103A1 (en) |
CA (1) | CA2258084A1 (en) |
DE (1) | DE19623178C2 (en) |
WO (1) | WO1997047373A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6818582B2 (en) | 2000-04-10 | 2004-11-16 | Kemira Metalkat Oy | Adsorbent catalyst |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES2393590T3 (en) * | 2009-01-07 | 2012-12-26 | Ingersoll-Rand Company | Mechanical separation system |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4061478A (en) * | 1974-06-28 | 1977-12-06 | Hartwick George J | Self-cleaning smoke filter |
US4085736A (en) * | 1975-10-01 | 1978-04-25 | Vent-Cair, Inc. | Grease-hood apparatus |
US4239513A (en) * | 1977-07-15 | 1980-12-16 | Egbert Paul | Separation of particles from gaseous fluid flows |
US4872892A (en) * | 1984-03-09 | 1989-10-10 | Halton Oy | Air purifier |
US4927437A (en) * | 1989-02-21 | 1990-05-22 | Richerson Ben M | Cyclonic separator for removing and recovering airborne particles |
DE4131988A1 (en) * | 1991-09-26 | 1993-04-08 | Rentschler Reven Lueftungssyst | SEPARATOR FOR LIQUIDS FROM A GAS FLOW, ESPECIALLY FOR OIL MIST |
WO1994013387A1 (en) * | 1992-12-04 | 1994-06-23 | Richerson, Ben, M. | A cyclone separator |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE916617C (en) * | 1946-12-12 | 1954-08-12 | Linderoths Patenter Ab | Device for separating solid components contained in a gas stream |
DE8700012U1 (en) * | 1987-01-01 | 1987-03-26 | Gutermuth Sen., Paul, 6456 Langenselbold, De | |
DE4016582A1 (en) * | 1990-05-23 | 1991-11-28 | Rentschler Reven Lueftungssyst | SEPARATOR FOR LIQUIDS FROM A GAS FLOW, ESPECIALLY FOR OIL MIST |
-
1996
- 1996-06-10 DE DE1996123178 patent/DE19623178C2/en not_active Expired - Fee Related
-
1997
- 1997-06-09 WO PCT/EP1997/002970 patent/WO1997047373A1/en not_active Application Discontinuation
- 1997-06-09 CA CA 2258084 patent/CA2258084A1/en not_active Abandoned
- 1997-06-09 EP EP97927154A patent/EP0925103A1/en not_active Withdrawn
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4061478A (en) * | 1974-06-28 | 1977-12-06 | Hartwick George J | Self-cleaning smoke filter |
US4085736A (en) * | 1975-10-01 | 1978-04-25 | Vent-Cair, Inc. | Grease-hood apparatus |
US4239513A (en) * | 1977-07-15 | 1980-12-16 | Egbert Paul | Separation of particles from gaseous fluid flows |
US4872892A (en) * | 1984-03-09 | 1989-10-10 | Halton Oy | Air purifier |
US4927437A (en) * | 1989-02-21 | 1990-05-22 | Richerson Ben M | Cyclonic separator for removing and recovering airborne particles |
DE4131988A1 (en) * | 1991-09-26 | 1993-04-08 | Rentschler Reven Lueftungssyst | SEPARATOR FOR LIQUIDS FROM A GAS FLOW, ESPECIALLY FOR OIL MIST |
WO1994013387A1 (en) * | 1992-12-04 | 1994-06-23 | Richerson, Ben, M. | A cyclone separator |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6818582B2 (en) | 2000-04-10 | 2004-11-16 | Kemira Metalkat Oy | Adsorbent catalyst |
Also Published As
Publication number | Publication date |
---|---|
DE19623178A1 (en) | 1997-12-11 |
DE19623178C2 (en) | 1999-07-15 |
EP0925103A1 (en) | 1999-06-30 |
CA2258084A1 (en) | 1997-12-18 |
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