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1. (WO2001000301) FILTERING DEVICE AND METHOD FOR TREATING A POLLUTED AIR STREAM
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/000301 International Application No.: PCT/ZA2000/000118
Publication Date: 04.01.2001 International Filing Date: 29.06.2000
Chapter 2 Demand Filed: 25.01.2001
IPC:
B01D 45/08 (2006.01) ,B01D 50/00 (2006.01) ,B01D 53/32 (2006.01) ,B03C 3/38 (2006.01) ,B03C 3/78 (2006.01) ,C01B 13/11 (2006.01) ,F24C 15/20 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
45
Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
04
by utilising inertia
08
by impingement against baffle separators
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
50
Combinations of devices for separating particles from gases or vapours
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
53
Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases or aerosols
32
by electrical effects other than those provided for in group B01D61/89
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
C
MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
3
Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
34
Constructional details or accessories or operation thereof
38
Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation, flames
B PERFORMING OPERATIONS; TRANSPORTING
03
SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
C
MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
3
Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
34
Constructional details or accessories or operation thereof
74
Cleaning the electrodes
78
by washing
C CHEMISTRY; METALLURGY
01
INORGANIC CHEMISTRY
B
NON-METALLIC ELEMENTS; COMPOUNDS THEREOF
13
Oxygen; Ozone; Oxides or hydroxides in general
10
Preparation of ozone
11
by electric discharge
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
24
HEATING; RANGES; VENTILATING
C
OTHER DOMESTIC STOVES OR RANGES; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
15
Details
20
Removing cooking fumes
Applicants:
STRYDOM, Rian [ZA/ZA]; ZA
BARNARDT, Cornelius, Andries [ZA/ZA]; ZA
PRETORIUS, Johannes [ZA/ZA]; ZA (AllExceptUS)
KOTZE, Jacobus, Charles, Bender [ZA/ZA]; ZA (AllExceptUS)
Inventors:
STRYDOM, Rian; ZA
BARNARDT, Cornelius, Andries; ZA
Agent:
TRUTER, JACOBUS, TRIDOUX; D.M. Kisch Inc. P.O. Box 781218 2146 Sandton, ZA
Priority Data:
99/425329.06.1999ZA
99/657218.10.1999ZA
Title (EN) FILTERING DEVICE AND METHOD FOR TREATING A POLLUTED AIR STREAM
(FR) DISPOSITIF DE FILTRAGE ET PROCEDE DE TRAITEMENT D'UN COURANT D'AIR POLLUE
Abstract:
(EN) This invention relates to a filtering device (10) and method for extracting pollutants from a zone. This invention further relates to a corona discharge reactor (16) and filtration unit for treating a polluted air stream. This invention yet further relates to a method of treating pollutants in a gas stream and to a method of generating a corona discharge. The filtering device (10) includes a duct (12) defining an endless passage (13) extending through a preliminary condensing and impingement filter (14); a secondary coalescer filter (15); a corona discharge filtration unit (16); an ozone filter (17); an air advancement means in the form of a blower (18); and a pollutant collecting means generally designated by reference numeral (20).
(FR) L'invention concerne un dispositif de filtrage (10) et un procédé d'extraction de polluants à partir d'une zone. Elle concerne également un réacteur à décharge par effet de couronne (16) et une unité de filtration servant à traiter un courant d'air pollué. L'invention se rapporte aussi à un procédé de traitement de polluants dans un flux gazeux et à un procédé destiné à produire une décharge par effet de couronne. Le dispositif de filtrage (10) comprend un conduit (12) définissant un passage sans fin (13) qui traverse d'abord un filtre à impact et à condensation (14), puis un filtre coalesceur (15), une unité de filtration à décharge par effet de couronne (16), un filtre à ozone (17), un dispositif de circulation d'air se présentant sous la forme d'un ventilateur (18), et un collecteur de polluants généralement désigné par le numéro de référence (20).
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)