WO2022103275A1 - Système et procédé pour séparer des particules d'un gaz pollué - Google Patents

Système et procédé pour séparer des particules d'un gaz pollué Download PDF

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Publication number
WO2022103275A1
WO2022103275A1 PCT/NO2021/050238 NO2021050238W WO2022103275A1 WO 2022103275 A1 WO2022103275 A1 WO 2022103275A1 NO 2021050238 W NO2021050238 W NO 2021050238W WO 2022103275 A1 WO2022103275 A1 WO 2022103275A1
Authority
WO
WIPO (PCT)
Prior art keywords
pipe
particles
gas
collecting
gap space
Prior art date
Application number
PCT/NO2021/050238
Other languages
English (en)
Inventor
Karl VENÅS
Original Assignee
Venaas Karl
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 Venaas Karl filed Critical Venaas Karl
Publication of WO2022103275A1 publication Critical patent/WO2022103275A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/12—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers
    • 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
    • B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
    • B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
    • B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
    • B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04B—CENTRIFUGES
    • B04B5/00—Other centrifuges
    • B04B5/12—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers
    • B04B2005/125—Centrifuges in which rotors other than bowls generate centrifugal effects in stationary containers the rotors comprising separating walls

Definitions

  • TITLE SYSTEM AND METHOD FOR SEPARATING PARTICLES FROM POLLUTED GAS
  • the present invention relates to a system and method for separating particles from polluted gas.
  • the dust separator can be used treating all gases where it is desirable to remove solid particles. It is especially suitable for reducing airborne dust from ovens where wood-firing is used as heating. Each year, more than 1000 persons dies in Norway due to airborne dust in outdoor air, and many cities has forbidden the use of wood-firing.
  • the separator can also be used for cleaning warm industrial gasses having a temperature too high for normal bag filters.
  • a main object of the present invention is to provide a method and system for efficient separating particles from polluted gas.
  • Another object of the present invention is to provide a system where the particles and gas are not remixed after being separated.
  • Yet another object of the present invention is to provide
  • the principle of the invention is that in a rotating annular chamber where there are particles and gas, the particles will, due to the centrifugal forces, be separated from the gas. The particles will be pushed towards the outer ring and the gas towards the inner ring. To prevent the particles from accumulating towards the outer ring, the ring must be made conical at an angle above 45°, see figure 1 where the angle (10) is indicated, so that the particles move downwards and can be collected.
  • the invention relates to a dust separator of the kind described in the preamble of claim 1.
  • the new invention has some similarities with NO141147 having the title "Dust separator ".
  • the mode of operation described in the patent NO41147 has the disadvantages in that the separated particles from the two conical shells will lie as airborne dust in the collecting container and can be mixed into the purified gas.
  • separated particles are used by means of the rotational energy guided via a pipe located tangentially at the bottom of the unit. The pipe is connected to a cyclone for collecting the dust particles.
  • the two sealing rings which are located between rotating and stationary parts easily leaks and releases unpurified gas into the collecting container, while in the present invention there is only one sealing ring. If this leaks, pure gas will be sucked in and mixed with the dusty gas l.e. separated particles will not enter the stream of pure gas.
  • the present invention relates to a system for separating particles from polluted gas.
  • the system comprises an apparatus, wherein the apparatus comprises a pipe for incoming gas.
  • the pipe is connected to a rotating part or rotor part.
  • the rotating part or rotor part comprises a rotating tube, a conical shell and an annular plate, wherein the annular plate provides a connection between the tube and the conical shell.
  • the apparatus further comprises a conical shell connected to a top plate, wherein the top plate comprises a central cylindrical part pressed into a shaft.
  • the conical shells are mutually concentrically arranged with a gap space arranged between the two conical shells.
  • the conical shells have a cone angle between 30° and 60°.
  • a central hub is connected to the rotating tube and the top plate, respectively.
  • the shaft is further connected to a disk, wherein the disk is connected to an electric motor.
  • the shaft is supported by means of bearings arranged in a bearing housing.
  • the apparatus further comprises a collecting pipe for collecting purified gas from the gap space, the gas from the gap space is guided through apertures located around the periphery of the collecting pipe.
  • the rotating part or rotor part comprises a blade wheel attached to the ring plate. The blade wheel ensures that the incoming gas is in rotation when guided into the gap space between the two conical shells, giving an enhanced separation where a centrifugal force is pressing the particles towards the outer conical shell and separating them from the gas.
  • a dust conveyor is provided for collecting separated particles from the gap space, the dust conveyor is connected to a collection tank for collecting dust particles.
  • the system further comprises a rotor housing with a bottom plate enclosing the apparatus.
  • the rotor housing is connected to the bearing housing and the collecting pipe is centrally arranged on the bottom plate.
  • An outlet pipe is connected to the collecting pipe for outlet of purified gas from the collecting pipe.
  • the cone angle is 45°.
  • the central hub is rotated by means of the electric motor connected to the shaft.
  • the dust conveyor is a pipe.
  • the pipe is arranged tangentially on the bottom plate.
  • the collection tank is a cyclone.
  • a sealing ring is arranged between rotating parts and fixedly mounted parts.
  • the present invention relates to a method for separating particles from polluted gas using the system as described above.
  • the method comprises the steps of: dusty gas enters a pipe, the dusty gas flows into a rotating part and into a blade wheel, and further into a gap space between two conical shells, where the centrifugal force separates the particles from the gas, the purified gas coming out of a lower part of the gap space is guided into the collecting pipe via apertures, the purified gas is discharged through an outlet pipe for the purified gas, the particles coming out at the lower part of the gap space is pushed by the centrifugal force towards the wall of the rotor housing and the rotational energy guides the particles further into a pipe tangentially arranged on the bottom plate of the rotor housing, the pipe guides the particles further to a cyclone for collecting the dust particles.
  • Figure 1 shows schematically an axial section of one embodiment of the invention.
  • the arrows indicated the flow direction of the gas. Dust containing gas enters the pipe (17) and flows into the rotating part (20) into the blade wheel (7) and further into the space (22) between the two conical shells (8) and (9).
  • Figure 2 shows an enlarged section of figure 1.
  • the arrows indicate the flow direction, the gas enters the pipe (17) and flows into the rotating part (20) into the blade wheel (7), further into the space (22) between the two conical shells (8) and (9).
  • Figure 3 shows the main parts of the gas separator
  • fig. 3a is the cover of the rotor housing (14) connected to the drive shaft (2) supported in the bearing housing (3) by means of the bearings (19).
  • Fig. 3b shows the conical shell (9) connected to the shaft (2).
  • Fig. 3c shows the conical shell (8) with the blade wheel (7), see fig. 3e. Further is the screw (5) and the sealing ring (11) shown.
  • the rotating elements are (1), (2), (9) and (8).
  • Figure 4 shows a side view of the invention, where separated particles is transported through the transport pipe (15) to the storing cyclone (18).
  • Figure 5 shows a top view of the invention.
  • the figures 1 and 2 shows axial section through one embodiment of the invention.
  • the arrow indicates the flow direction of the gas.
  • Dust containing gas enters the pipe (17) and flows into the rotating part (20) into the blade wheel (7) and further into the gap space (22) between the two conical shells (8) and (9).
  • a sealing ring (11) is arranged in the connection between the fixed pipe (17) and the rotating pipe (20), which can also be combined with a bearing.
  • the blade wheel (7) is connected to the ring plate (25).
  • the ring plate (25) give a connection between the pipe (20) and the conical shell (8).
  • the conical shell (9) is connected to a top plate (21) having a central part (24) which is pressed into the shaft (2) and locked by means of the bolt (4).
  • the rotor part comprising the pipe (20), the ring plate (25), the conical shell (8) and the blade wheel (7) is connected to the top plate by means of the screw (5).
  • the shaft (2) is connected to a disc (1) connected to an electrical motor (not shown).
  • the shaft (2) is supported by means of the bearings (19) located in the bearing housing (3).
  • the bearing housing (3) is fixedly screwed to the rotor housing (14).
  • the purified gas coming out of the lower part of the gap space (22) is guided into the collecting pipe (13) via apertures (12) which are located around the periphery of the collecting pipe (13) and have an outlet pipe (16) for the purified gas.
  • the particles coming out at the lower part of the gap space (22) will due to the centrifugal force be pushed towards the wall of the rotor housing (14) and will due to the rotational energy be guided further into a pipe (15) located tangentially in the bottom of the unit.
  • the pipe (15) is connected to a cyclone (18) for collecting the dust particles.
  • the cone angle (10) will preferably be between 30° and 60°.
  • the collecting pipe (13) is centrally located on the bottom plate (23) of the motor housing.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cyclones (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Abstract

Un système pour séparer des particules d'un gaz pollué comprend un appareil dans lequel du gaz chargé de poussière pénètre dans le tuyau (17) et s'écoule davantage dans la partie rotative dans la roue à pales (7), dans l'espace d'interstice (22) entre les deux coques coniques (8) et (9). La roue à pales (7) est fixée à la plaque annulaire (25), la plaque annulaire (25) fournit une transition entre le tube (20) et la coque conique (8) et la coque conique (9) est fixée à une plaque supérieure (21). La partie rotor, qui comprend le tube (20), la plaque annulaire (25), la coque conique (8) et la roue à pales (7) sont fixées à la plaque supérieure avec la vis (5) et l'arbre (2) est relié à un moteur électrique. Le gaz purifié sortant de la partie inférieure de l'espace d'interstice (22) est conduit dans le tuyau de collecte (13) par l'intermédiaire d'ouvertures (12) qui sont situées autour de la périphérie du tuyau de collecte (13) et comprennent un tuyau de sortie (16) pour le gaz purifié, les particules sortant au niveau de la partie inférieure de l'espace d'interstice (22) pénètrent, en raison de la force centrifuge, dans la paroi du carter de rotor (14) et, en raison de l'énergie de rotation, sont guidées plus loin dans un tuyau (15) situé tangentiellement dans la partie inférieure de l'unité.
PCT/NO2021/050238 2020-11-16 2021-11-16 Système et procédé pour séparer des particules d'un gaz pollué WO2022103275A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO20201241A NO347399B1 (no) 2020-11-16 2020-11-16 System for utskilling av partikler fra en forurenset gass
NO20201241 2020-11-16

Publications (1)

Publication Number Publication Date
WO2022103275A1 true WO2022103275A1 (fr) 2022-05-19

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO2021/050238 WO2022103275A1 (fr) 2020-11-16 2021-11-16 Système et procédé pour séparer des particules d'un gaz pollué

Country Status (2)

Country Link
NO (1) NO347399B1 (fr)
WO (1) WO2022103275A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO20220624A1 (no) * 2022-05-30 2023-12-01 Venaas Karl Ing As System for partikkelutskilling fra en partikkelholdig gass

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593294A (en) * 1947-07-21 1952-04-15 Max Goldberg Centrifugal separating apparatus
CA1092528A (fr) * 1976-12-17 1980-12-30 Karl Venaas Epurateur de gaz
US5637217A (en) * 1995-01-25 1997-06-10 Fleetguard, Inc. Self-driven, cone-stack type centrifuge
WO2007133161A1 (fr) * 2006-05-15 2007-11-22 Alfa Laval Corporate Ab Séparateur centrifuge
US20100011723A1 (en) * 2008-07-16 2010-01-21 Alfa Laval Corporate Ab Centrifugal separator
EP2918211A1 (fr) * 2014-03-11 2015-09-16 Hoover Limited Dispositif à séparation cyclonique

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO135695C (fr) * 1975-06-16 1977-05-16 Selskaper For Ind Og Teknisk F

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2593294A (en) * 1947-07-21 1952-04-15 Max Goldberg Centrifugal separating apparatus
CA1092528A (fr) * 1976-12-17 1980-12-30 Karl Venaas Epurateur de gaz
US5637217A (en) * 1995-01-25 1997-06-10 Fleetguard, Inc. Self-driven, cone-stack type centrifuge
WO2007133161A1 (fr) * 2006-05-15 2007-11-22 Alfa Laval Corporate Ab Séparateur centrifuge
US20100011723A1 (en) * 2008-07-16 2010-01-21 Alfa Laval Corporate Ab Centrifugal separator
EP2918211A1 (fr) * 2014-03-11 2015-09-16 Hoover Limited Dispositif à séparation cyclonique

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Publication number Publication date
NO347399B1 (no) 2023-10-16
NO20201241A1 (no) 2022-05-17

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