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WO1983003556A1 - Cyclone separator with filter unit - Google Patents

Cyclone separator with filter unit Download PDF

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Publication number
WO1983003556A1
WO1983003556A1 PCT/SE1983/000130 SE8300130W WO8303556A1 WO 1983003556 A1 WO1983003556 A1 WO 1983003556A1 SE 8300130 W SE8300130 W SE 8300130W WO 8303556 A1 WO8303556 A1 WO 8303556A1
Authority
WO
WIPO (PCT)
Prior art keywords
cyclone separator
central tube
filter unit
filter
gas
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.)
Ceased
Application number
PCT/SE1983/000130
Other languages
French (fr)
Inventor
Ab Dustcontrol
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of WO1983003556A1 publication Critical patent/WO1983003556A1/en
Priority to FI834474A priority Critical patent/FI76930C/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/52—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material
    • B01D46/521—Particle separators, e.g. dust precipitators, using filters embodying folded corrugated or wound sheet material using folded, pleated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
    • B01D46/2403—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies characterised by the physical shape or structure of the filtering element
    • B01D46/2411—Filter cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
    • B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
    • B01D46/58—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in parallel
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
    • 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
    • B04C5/12—Construction of the overflow ducting, e.g. diffusing or spiral exits
    • B04C5/13—Construction of the overflow ducting, e.g. diffusing or spiral exits formed as a vortex finder and extending into the vortex chamber; Discharge from vortex finder otherwise than at the top of the cyclone; Devices for controlling the overflow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
    • B01D2275/20—Shape of filtering material
    • B01D2275/201—Conical shape

Definitions

  • the invention relates to dust separators and more particularly to a cyclone separator with filter unit for separating dust from gas, the filter unit being located in the central tube of the cyclone separator with an annular gap provided between the filter unit and the central tube.
  • Cyclone separators are frequently used for separating impurities from a gas (air).
  • the cyclone separator includes a cylindrical housing with a tangential gas inlet and a bottom cone arranged at the lower end, which connects with a dust outlet. Inside the housing a central tube is provided which connects with a gas outlet and is located in the central section of the cyclone separator.
  • the tangential gas inlet of the cyclone separator produces a rotational movement of the incoming gas and forces the dust particles towards the cylindrical surface of the cyclone separator.
  • the rotating particles are actuated by the centrifugal force, the gravity and the movement of the gas towards the gas outlet (the central tube).
  • the separated dust rotates downwards towards the lower portion of the cyclone separator, the bottom cone and the dust outlet, while the purified gas passes through the central tube (the outlet). Since it is not possible to reduce unlimitedly the rotational movement and the gas velocity towards the outlet, the separating effect of a cyclone separator is always limited due to physical conditions.
  • the rotational movement in the central tube can be slightly limited by means of vanes or wings in the central tube, and as a consequence thereof the separating efficiency of the cyclone separator will be increased.
  • the cyclone separator is combined with a filter unit for cleaning the gas from such particles as are not separated in the cyclone separator by the rotational movement.
  • the cyclone separator according to the invention has obtained the characteristics according to claim 1.
  • the filter material of the filter unit is utilized for reducing the rotational movement and the air velocity in the central tube.
  • the efficiency and the separating effect preferably as far as small dust particles in the cyclone separator are concerned, will be considerably increased, the filter will be loaded by a smaller proportion of dust, and the flow losses will be reduced.
  • a large filter area is obtained by the folded filter construction, which reduces pressure drop losses over the filter unit.
  • the wrinkled passage between the central tube and the filter functions as a stabilizer for the gas.
  • FIG. 1 is a diagrammatic vertical cross section al view of the cyclone separator
  • FIG. 2 is a cross sectional view along line A-A in FIG. 1
  • FIG. 3 is a side view of the filter unit
  • FIG. 4 is a side view of the central tube
  • FIG. 5 is a comparing diagram illustrating the separating efficiency of cyclone separators of different types
  • FIG. 6 is a vertical cross sectional view of the central tube in a modified embodiment there- of.
  • the cyclone separator comprises a cylindrical housing 10 with a tangential inlet 11 for gas (air) with dust entrained therein. At the bottom the housing 10 connects with a bottom cone 12 and a dust outlet 13 which then connects with a dust magazine
  • a central tube 15 is arranged inside the housing, said tube being suspended by means of a rubber diaphragm 16 attached to the housing.
  • the central tube tapers towards the lower end thereof, the inlet end, and has a flaring 17 at said end.
  • a filter 18 also tapering towards the lower, closed end thereof, is arranged inside the central tube coaxially therewith.
  • the filter too is supported by the diaphragm and preferably is attached so as to be replaced. It can consist of a paper or textile material or of a metal netting, a ceramic material or a plastic material or also of different combinations of these materials according to the principles generally applied in the filter technique.
  • the filter forms longitudinal folds and is braced on the inside thereof by means of a perforated tube 19 of a rigid material (cardboard, metal or plastic), which supports the filter at the inside folds. Also this tube is supported by the diaphragm and it can be constructed to form a unit with the filter. Between the filter and the central tube an annular gap 20 is provided. An opening 21 in a wall 22 closing the central tube at the upper end thereof, connects the interior of the tube 19 with an outlet 23 for gas which has been purified in the cyclone separator.
  • the contaminated gas passes through the inlet 11 of the cyclone separator and rotates along the housing 10 of the cyclone separator. Due to the centrifugal force and the gravity impurities (dust particles) are forced downwards to the dust magazine 14 were they are separated. The purified gas, still rotating, raises towards the inlet of the central tube 15 were the gas is forced to pass over the folded surface of the filter 18 in the gap 20. The folded filter surface stabilizes the gas by retarding remaining rotational forces so that a laminar gas flow continues through the outlet 23 of the cyclone separator.
  • the graph A relates to a cyclone separator having no filter unit
  • the graph B relates to a cyclone separator having a cylindrical folded filter unit and indicates the separating efficiency of the cyclone separator proper (not the filter)
  • the graph C in the same manner as the graph B indicates the separating efficiency of a cyclone separator having a folded filter unit which tapers towards the lower end thereof and is located in a central tube tapering downwards, as in the embodiment shown and described.
  • the graphs are based on laboratory tests. Due to an increased separating efficiency of the cyclone separator the filter will be loaded to a considerably lower degree, which means that the flow losses will be reduced.
  • the central tube 15 together with the filter 18 forms a compact unit which can be shaken in a simple manner for cleaning the filter surface thanks to the suspension by means of a rubber diaphragm 16.
  • the dust particles which stick to the folded filter surface then fall down easily through the central tube and through the lower portion of the cyclone separator to the dust magazine.
  • the filter unit can be more easily cleaned by shaking because the inclination of the filter facilitates the drainage of the dust.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Cyclones (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

Dans un séparateur cyclonique une unité à filtre plissé (18) est disposée à l'intérieur du tube central (15) du séparateur cyclonique, ce tube entourant complètement l'unité à filtre avec un écartement annulaire (20) entre l'unité à filtre et le tube central.In a cyclonic separator a pleated filter unit (18) is arranged inside the central tube (15) of the cyclonic separator, this tube completely surrounding the filter unit with an annular spacing (20) between the filter unit and the central tube.

Description

CYCLONE SEPARATOR WITH FILTER UNIT
The invention relates to dust separators and more particularly to a cyclone separator with filter unit for separating dust from gas, the filter unit being located in the central tube of the cyclone separator with an annular gap provided between the filter unit and the central tube.
Cyclone separators are frequently used for separating impurities from a gas (air). The cyclone separator includes a cylindrical housing with a tangential gas inlet and a bottom cone arranged at the lower end, which connects with a dust outlet. Inside the housing a central tube is provided which connects with a gas outlet and is located in the central section of the cyclone separator. The tangential gas inlet of the cyclone separator produces a rotational movement of the incoming gas and forces the dust particles towards the cylindrical surface of the cyclone separator. The rotating particles are actuated by the centrifugal force, the gravity and the movement of the gas towards the gas outlet (the central tube).
The separated dust rotates downwards towards the lower portion of the cyclone separator, the bottom cone and the dust outlet, while the purified gas passes through the central tube (the outlet). Since it is not possible to reduce unlimitedly the rotational movement and the gas velocity towards the outlet, the separating effect of a cyclone separator is always limited due to physical conditions. The rotational movement in the central tube can be slightly limited by means of vanes or wings in the central tube, and as a consequence thereof the separating efficiency of the cyclone separator will be increased. Sometimes the cyclone separator is combined with a filter unit for cleaning the gas from such particles as are not separated in the cyclone separator by the rotational movement. Several cyclone separators are available on the market, wherein attempts have been made to provide said combination in order to obtain a small apparatus volume. However, the embodiments of such combined separators, which have been presented so far, have a low efficiency due to the fact that the filter unit requires a large space, which negatively affects the design of the cyclone separator.
For the purpose of providing a compact dust separator comprising a cyclone separator and a filter unit, while obtaining maximum separating effect, the cyclone separator according to the invention has obtained the characteristics according to claim 1.
By this arrangement the filter material of the filter unit is utilized for reducing the rotational movement and the air velocity in the central tube. The efficiency and the separating effect preferably as far as small dust particles in the cyclone separator are concerned, will be considerably increased, the filter will be loaded by a smaller proportion of dust, and the flow losses will be reduced. At the same time a large filter area is obtained by the folded filter construction, which reduces pressure drop losses over the filter unit. The wrinkled passage between the central tube and the filter functions as a stabilizer for the gas.
In order to explain in more detail the invention embodiments will be described below reference being made to the accompanying drawing in which
FIG. 1 is a diagrammatic vertical cross section al view of the cyclone separator, FIG. 2 is a cross sectional view along line A-A in FIG. 1,
FIG. 3 is a side view of the filter unit, FIG. 4 is a side view of the central tube, FIG. 5 is a comparing diagram illustrating the separating efficiency of cyclone separators of different types, and
FIG. 6 is a vertical cross sectional view of the central tube in a modified embodiment there- of.
The cyclone separator comprises a cylindrical housing 10 with a tangential inlet 11 for gas (air) with dust entrained therein. At the bottom the housing 10 connects with a bottom cone 12 and a dust outlet 13 which then connects with a dust magazine
14. A central tube 15 is arranged inside the housing, said tube being suspended by means of a rubber diaphragm 16 attached to the housing. The central tube tapers towards the lower end thereof, the inlet end, and has a flaring 17 at said end. A filter 18 also tapering towards the lower, closed end thereof, is arranged inside the central tube coaxially therewith. The filter too is supported by the diaphragm and preferably is attached so as to be replaced. It can consist of a paper or textile material or of a metal netting, a ceramic material or a plastic material or also of different combinations of these materials according to the principles generally applied in the filter technique. The filter forms longitudinal folds and is braced on the inside thereof by means of a perforated tube 19 of a rigid material (cardboard, metal or plastic), which supports the filter at the inside folds. Also this tube is supported by the diaphragm and it can be constructed to form a unit with the filter. Between the filter and the central tube an annular gap 20 is provided. An opening 21 in a wall 22 closing the central tube at the upper end thereof, connects the interior of the tube 19 with an outlet 23 for gas which has been purified in the cyclone separator.
The contaminated gas passes through the inlet 11 of the cyclone separator and rotates along the housing 10 of the cyclone separator. Due to the centrifugal force and the gravity impurities (dust particles) are forced downwards to the dust magazine 14 were they are separated. The purified gas, still rotating, raises towards the inlet of the central tube 15 were the gas is forced to pass over the folded surface of the filter 18 in the gap 20. The folded filter surface stabilizes the gas by retarding remaining rotational forces so that a laminar gas flow continues through the outlet 23 of the cyclone separator.
The fine dust particles which cannot be separ- ated by cyclone action, stick to the filter surface. Due to the folded filter construction the filter area is relatively large and the flow losses are relatively small such that large amounts of fine dust can be separated in the filter construction proper. When the gas flow is shut off the fine particles come lose from the folded filter surface and fall down to the separated dust in the dust magazine 14.
Due to the fact that the filter is folded in the longitudinal direction thereof a highly effective cyclone separator is provided. The vanes are replaced by the filter operating as means for retarding the central cyclone vortex, the separating efficiency of the cyclone separator being increased as a consequence thereof. This is illustrated in FIG. 5 were the horisontal axis indicates the particle size in μm and the vertical axis indicates the separating efficiency in per cent. The graph A relates to a cyclone separator having no filter unit, the graph B relates to a cyclone separator having a cylindrical folded filter unit and indicates the separating efficiency of the cyclone separator proper (not the filter), and the graph C in the same manner as the graph B indicates the separating efficiency of a cyclone separator having a folded filter unit which tapers towards the lower end thereof and is located in a central tube tapering downwards, as in the embodiment shown and described. The graphs are based on laboratory tests. Due to an increased separating efficiency of the cyclone separator the filter will be loaded to a considerably lower degree, which means that the flow losses will be reduced.
The central tube 15 together with the filter 18 forms a compact unit which can be shaken in a simple manner for cleaning the filter surface thanks to the suspension by means of a rubber diaphragm 16. The dust particles which stick to the folded filter surface then fall down easily through the central tube and through the lower portion of the cyclone separator to the dust magazine. Since the folded filter is conical in relation to the central tube (tapering towards the lower end) the filter unit can be more easily cleaned by shaking because the inclination of the filter facilitates the drainage of the dust. The ideal construction seems to be that of the embodiment shown and described wherein the central tube is made slightly conical and also the filter unit is conical but with a larger angle. Referring to FIGS. 3 and 4 α should range from 0 to 30° and β from 0 to 25°. Furthermore,α ≥ β. At the test forming the basis for the graph C, the angles were α = 8° and β = 5°.
In the embodiment according to FIG. 6 several filters 18 of the construction described above are arranged in the central tube 15 which in this case extends below the lower ends of the filters the part of the central tube extending below the filters, being provided with wings or vanes 24 at the inside thereof.

Claims

1. Cyclone separator with filter unit (18) for separating dust from gas, the filter unit being located in the central tube (15) of the cyclone separ- ator with an annular gap (20) provided between the filter unit and the central tube, c h a r a c t e r i z e d in that the filter unit (18) is folded longitudinally thereof.
2. Cyclone separator as claimed in claim 1, c h a r a c t e r i z e d in that the filter unit
(18) is conical and tapers towards the inlet end of the central tube (15).
3. Cyclone separator as claimed in claim 1 or 2, c h a r a c t e r i z e d in that the enclosing central tube (15) is conical and tapers towards the inlet end thereof.
4. Cyclone separator as claimed in any of claims 1 to 3, c h a r a c t e r i z e d in that the enclosing central tube (15) is flared (17) at the inlet end thereof.
5. Cyclone separator as claimed in claim 2 or 3, c h a r a c t e r i z e d in that several filter units (18) are arranged in parallel in the central tube (15).
6. Cyclone separator as claimed in any of claims 1 to 5, c h a r a c t e r i z e d in that the central tube (15) at the inside thereof is provided with wings or vanes (24).
7. Cyclone separator as claimed in any of claims 1 to 6, c h a r a c t e r i z e d in that the filter unit (18) and the enclosing central tube (15) are suspended by means of an elastic diaphragm (16).
8. Cyclone separator as claimed in any of claims 1 to 7, c h a r a c t e r i z e d in that the filter unit (18) at the inside thereof is braced by means of a perforated support tube (19) for the inner filter folds.
PCT/SE1983/000130 1982-04-07 1983-04-07 Cyclone separator with filter unit Ceased WO1983003556A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI834474A FI76930C (en) 1982-04-07 1983-12-07 Cyclone separator with filter unit.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8202223-7820407 1982-04-07
SE8202223A SE434346C (en) 1982-04-07 1982-04-07 CYCLON SEPARATOR WITH FILTER UNIT FOR SEPARATION OF GAS SUBSTANCES, WHICH A WEEKLY FILTER UNIT IS PROVIDED WITH A RING POINT AGAINST THE SEPARATOR CENTER

Publications (1)

Publication Number Publication Date
WO1983003556A1 true WO1983003556A1 (en) 1983-10-27

Family

ID=20346487

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1983/000130 Ceased WO1983003556A1 (en) 1982-04-07 1983-04-07 Cyclone separator with filter unit

Country Status (4)

Country Link
EP (1) EP0105317A1 (en)
FI (1) FI76930C (en)
SE (1) SE434346C (en)
WO (1) WO1983003556A1 (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182000A3 (en) * 1984-06-18 1987-01-21 Titus, Hans Joachim, Dipl.-Ing. Cyclone filter with all metal tandem filter candle
WO1989004711A1 (en) * 1987-11-20 1989-06-01 Dustcontrol International Ab Method of cleaning a cyclone separator and cyclone separator for practising the method
EP0343061A1 (en) * 1988-05-18 1989-11-23 Cattinair Circular filter with filter cartridge
EP0385260A1 (en) * 1989-03-03 1990-09-05 AB Ph. Nederman & Co. Device for separating particles from flowing medium
DE3891009T1 (en) * 1987-11-20 1990-10-11 Dustcontrol International Ab METHOD FOR CLEANING A CYCLONE SEPARATOR AND CYCLONE SEPARATOR FOR CARRYING OUT THE METHOD
GB2271728A (en) * 1992-10-15 1994-04-27 Edward John Roberts Suction cleaner
EP0953526A1 (en) * 1998-04-08 1999-11-03 Mann + Hummel ProTec GmbH Device for conveying bulk products
JP2002522078A (en) * 1998-08-13 2002-07-23 ザ ユニバーシティー オブ ピッツバーグ オブ ザ コモンウェルス システム オブ ハイヤー エドゥケーション Cold-adapted equine influenza virus
GB2404887A (en) * 2003-08-13 2005-02-16 Dyson Ltd Grooved outlet for cyclonic separating apparatus
DE102009058656A1 (en) 2009-12-16 2011-06-22 Uhde GmbH, 44141 Process and installation for separating acidic components, dust and tar from hot gases from gasification plants
CN103084033A (en) * 2013-02-05 2013-05-08 辽宁中顺科技装备有限公司 Negative-pressure automatic check residue remove apparatus
WO2015007376A1 (en) * 2013-07-13 2015-01-22 Gerhard Kemper Device for extracting and filtering air laden with fine dust

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE407904B (en) * 1975-12-23 1979-04-30 Atlas Copco Ab DEVICE FOR SEPARATION OF LIQUID FROM LIQUID COMPRESSED GAS

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE407904B (en) * 1975-12-23 1979-04-30 Atlas Copco Ab DEVICE FOR SEPARATION OF LIQUID FROM LIQUID COMPRESSED GAS

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan, abstract of JP 52-43 173 , published 1977-04-04 *

Cited By (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0182000A3 (en) * 1984-06-18 1987-01-21 Titus, Hans Joachim, Dipl.-Ing. Cyclone filter with all metal tandem filter candle
WO1989004711A1 (en) * 1987-11-20 1989-06-01 Dustcontrol International Ab Method of cleaning a cyclone separator and cyclone separator for practising the method
DE3891009T1 (en) * 1987-11-20 1990-10-11 Dustcontrol International Ab METHOD FOR CLEANING A CYCLONE SEPARATOR AND CYCLONE SEPARATOR FOR CARRYING OUT THE METHOD
GB2230474A (en) * 1987-11-20 1990-10-24 Dust Control International Ab Method of cleaning a cyclone separator and cyclone separator for practising the method
US5066315A (en) * 1987-11-20 1991-11-19 Dustcontrol International Ab Method of cleaning a cyclone separation and cyclone separator for practicing the method
GB2230474B (en) * 1987-11-20 1992-02-05 Dust Control International Ab Method of cleaning a cyclone separator and cyclone separator for practising the method
DE3891009B4 (en) * 1987-11-20 2005-05-25 Dustcontrol International Ab Method for cleaning a dust filter and dust filter for carrying out the method
EP0343061A1 (en) * 1988-05-18 1989-11-23 Cattinair Circular filter with filter cartridge
FR2631560A1 (en) * 1988-05-18 1989-11-24 Cattinair AIR FILTRATION METHOD AND FILTER CARTRIDGE FOR CARRYING OUT THE PROCESS
US5032153A (en) * 1988-05-18 1991-07-16 Cattinair Process for filtering air and cyclone filter with filter cartridge for implementing the process
EP0385260A1 (en) * 1989-03-03 1990-09-05 AB Ph. Nederman & Co. Device for separating particles from flowing medium
US5106488A (en) * 1989-03-03 1992-04-21 Ab Ph. Nederman & Co. Device for separating particles from flowing medium
GB2271728B (en) * 1992-10-15 1997-04-02 Edward John Roberts Suction cleaners
GB2271728A (en) * 1992-10-15 1994-04-27 Edward John Roberts Suction cleaner
EP0953526A1 (en) * 1998-04-08 1999-11-03 Mann + Hummel ProTec GmbH Device for conveying bulk products
JP2002522078A (en) * 1998-08-13 2002-07-23 ザ ユニバーシティー オブ ピッツバーグ オブ ザ コモンウェルス システム オブ ハイヤー エドゥケーション Cold-adapted equine influenza virus
GB2404887A (en) * 2003-08-13 2005-02-16 Dyson Ltd Grooved outlet for cyclonic separating apparatus
AU2004264703B2 (en) * 2003-08-13 2008-02-28 Dyson Technology Limited Cyclonic separating apparatus
US7513924B2 (en) 2003-08-13 2009-04-07 Dyson Technology Limited Cyclonic separating apparatus
DE102009058656A1 (en) 2009-12-16 2011-06-22 Uhde GmbH, 44141 Process and installation for separating acidic components, dust and tar from hot gases from gasification plants
WO2011082729A1 (en) 2009-12-16 2011-07-14 Uhde Gmbh Method and installation for separating acid components, dust and tar from hot gases of gasification installations
EP2591841A1 (en) 2009-12-16 2013-05-15 ThyssenKrupp Uhde GmbH Plant for separating acidic components, dust and tar from hot gases from gasification plant
AU2010341226B2 (en) * 2009-12-16 2015-10-01 Thyssenkrupp Uhde Gmbh Method and installation for separating acid components, dust and tar from hot gases of gasification installations
US9498746B2 (en) 2009-12-16 2016-11-22 Thyssenkrupp Uhde Gmbh Method and installation for separating acid components, dust and tar from hot gases of gasification installations
CN103084033A (en) * 2013-02-05 2013-05-08 辽宁中顺科技装备有限公司 Negative-pressure automatic check residue remove apparatus
WO2015007376A1 (en) * 2013-07-13 2015-01-22 Gerhard Kemper Device for extracting and filtering air laden with fine dust
US9687767B2 (en) 2013-07-13 2017-06-27 Gerhard Kemper Filter apparatus for extracting fine dust from air

Also Published As

Publication number Publication date
FI76930B (en) 1988-09-30
SE8202223L (en) 1983-10-08
FI834474L (en) 1983-12-07
FI834474A0 (en) 1983-12-07
FI76930C (en) 1989-01-10
EP0105317A1 (en) 1984-04-18
SE434346C (en) 1985-10-28
SE434346B (en) 1984-07-23

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