Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
3
/
01
•
Pretreatment of the gases prior to electrostatic precipitation
3
/
011
•
•
Prefiltering; Flow controlling [6]
3
/
013
•
•
Conditioning by chemical additives, e.g. with SO3 [6]
3
/
014
•
•
Addition of water; Heat exchange, e.g. by condensation [6]
3
/
016
•
•
by acoustic or electromagnetic energy, e.g. ultra-violet light [6]
3
/
017
•
Combinations of electrostatic separation with other processes, not otherwise provided for [6]
3
/
019
•
Post-treatment of gases [6]
3
/
02
•
Plant or installations having external electricity supply (electrode constructions B 03 C 3/40)
3
/
04
•
•
dry type
3
/
06
•
•
•
characterised by presence of stationary tube electrodes
3
/
08
•
•
•
characterised by presence of stationary flat electrodes arranged with their flat surfaces parallel to the gas stream
3
/
09
•
•
•
characterised by presence of stationary flat electrodes arranged with their flat surfaces at right angles to the gas stream
3
/
10
•
•
•
characterised by presence of electrodes moving during separating action
3
/
12
•
•
•
characterised by separation of ionising and collecting stations
3
/
14
•
•
•
characterised by the additional use of mechanical effects, e.g. gravity (B 03 C 3/32 takes precedence)
3
/
145
•
•
•
•
Inertia [6]
3
/
15
•
•
•
•
Centrifugal forces [6]
3
/
155
•
•
•
•
Filtration [6]
3
/
16
•
•
wet type
3
/
28
•
Plant or installations without electricity supply, e.g. using electrets
3
/
30
•
•
in which electrostatic charge is generated by passage of the gases, i.e. tribo-electricity
3
/
32
•
Transportable units, e.g. for cleaning room air (room air-conditioners having an electrostatic separating stage F 24 F)
3
/
34
•
Constructional details or accessories or operation thereof
3
/
36
•
•
Controlling flow of gases or vapour
3
/
38
•
•
Particle charging or ionising stations, e.g. using electric discharge, radioactive radiation, flames (electrode constructions B 03 C 3/40
; ionising gases H 05 H)
3
/
40
•
•
Electrode constructions
3
/
41
•
•
•
Ionising-electrodes
3
/
43
•
•
•
•
radioactive
3
/
45
•
•
•
Collecting-electrodes
3
/
47
•
•
•
•
flat, e.g. plates, discs, gratings
3
/
49
•
•
•
•
tubular
3
/
51
•
•
•
•
Catch-space electrodes, e.g. slotted-box form
3
/
53
•
•
•
•
Liquid, or liquid-film, electrodes
3
/
60
•
•
•
Use of special materials other than liquids
3
/
62
•
•
•
•
ceramics
3
/
64
•
•
•
•
synthetic resins
3
/
66
•
•
Applications of electricity supply techniques
3
/
68
•
•
•
Control systems therefor
3
/
70
•
•
•
insulating in electric separators (B 03 C 3/53 takes precedence)
3
/
72
•
•
Emergency control systems
3
/
74
•
•
Cleaning the electrodes
3
/
76
•
•
•
by using a mechanical vibrator, e.g. rapping gear
3
/
78
•
•
•
by washing
3
/
80
•
•
•
by gas or solid particle blasting
3
/
82
•
•
Housings
3
/
84
•
•
•
Protective coatings
3
/
86
•
•
Electrode-carrying means (B 03 C 3/40 takes precedence)
3
/
88
•
•
Cleaning-out collected particles
5
/
00
Separating dispersed particles from liquids by electrostatic effect (combined with centrifuges B 04 B 5/10) [2]
5
/
02
•
Separators
7
/
00
Separating solids from solids by electrostatic effect
7
/
02
•
Separators
7
/
04
•
•
with material carriers in the form of trays, troughs, or tables
7
/
06
•
•
with cylindrical material carriers
7
/
08
•
•
with material carriers in the form of belts
7
/
10
•
•
with material falling in cascades
7
/
12
•
•
with material falling free
9
/
00
Electrostatic separation not provided for in a single preceding main group
