ELECTROSTATIC SEPARATION OF UNBURNED CARBON FROM FLY ASH USING CONDUCTIVE INDUCTION TYPE OF EJECTOR TRIBOCHARGER

摘要

What the present invention can be readily removable that unburned carbon is contained in that flying dust generates from coal-burning power plant is related to a device, especially unburned coal ash and flying dust uses the electrostatic polarity difference of a friction electricity by electrostatic induction type of injector, it can sharp improve separative efficiency according to the quantity of the unburned carbon in flying dust handling capacity component, be mixed one and be related to an electrostatic separator of carbon. ;It is storage bin for flyash thus in the present invention(1),It is connected to storage hopper(1)Rotary feeder funnel,(2),Rotary feeder funnel(2),Vibrator is connected to transmit for flying dust(3),Vibrator by a suitable quantity 4(3)One blower for supplying flying dust,Magnetic field strength flying dust drive nozzle(6)There is a Venturi meter principle wherein,Based on+parallel one of holding the uniform of a pair,-- electrode plate(24b ,24a)Electrostatic induction friction loading device,With 7,The blower air quantity instrument of air,It injects gearing friction loading device(7)(5),In friction loading device(7)The electrostatic powder of middle removal charging separates(Transfer is for supplying to 8)Pipe(9),Distributor distributes powder and passes through this delivery tube(9)(10)With,It includes a distributor crack that the separation of distributor 10, which disperses flying dust power unit in upper flow powder by a uniform electrostatic charge,(11),It is used to provide(8)(12)With; Be parallel to a uniform electric field+distributor 10 is formed in flying dust and flowing through installation,-- removal powder is retained in layer(13a ,13b)Collector plate powder electrostatic separation unit(8)Tjuta devices 15 and external high pressure leakage attachment for preventing(16),The funnel shaped recyclable device of isolated section of electrostatic,It is used to conclude the prevention of generation vortex and uniform flow VELOCITY DISTRIBUTION in 8 17,Once whirlwind,It is used to collect separated flying dust(19A)And including coal collecting part 20,It has a whirlwind(19B),It is used to collect discarding,It is in the electrostatic separator from the unburned carbon of the coal ash by an electrostatic induction type triboelectric charge,Electrostatic induction type friction loading device(7)It is introduced into flying dust,From the flying dust of air inlet part 21 from drive nozzle(6)By injection electricity(7)Friction mixing,From recyclable device(17)The powder of middle releasing and combined conduit,It is used to transmit air mixture(18),It is refined for collecting,Electrostatic induction,Rub electric doedoe,By for-the electrode plate that insulate(24a)A kind of teflon material made of rub loading device(7)Friction charging part 22 in be connected to power-feed section 23,For insulating(26)Upper plate electrode,+ electrode plate(24b)For lower panel to be isolated,Electrode 27,+ ,-- the holding electrode between intermediate plate to be set(28)Upper/lower electrode pole piece 26 and 27,+ ,-- electrode plate(24a ,24b)With a structure,It is kept by 5~25/prevent air breakdown