Apparatus for the removal of contaminants from gas streams

Claim 2

APPARATUS FOR THE REMOVAL OF CONTAMINANT MATERIALS SUCH AS PARTICULATE MATTER AND GASEOUS SUBSTANCES FROM A STREAM OF GAS COMPRISING, A MIXTURE TUBE, MEANS COMPRISING A STREAM AND WATER EJECTOR NOZZLE FOR FORMING A MOVING JET COMPRISING A MIXTURE OF STEAM AND AQUEOUS DROPLETS IN SAID MIXING TUBE TO DRIVE A GAS CONTAINING AT LEAST ONE CONTAMINANT MATERIAL THROUGH SAID MIXING TUBE AND TO FORM THEREIN A MOVING STREAM COMPRISING A TURBULENT MISTURE OF SAID GAS AND SAID CONTAMINANT MATERIAL WITH SAID STEAM AND SAID AQUEOUS DROPLETS, IN WHICH MIXTURE SAID AQUEOUS DROPLETS BY CONTACT WITH SAID CONTAMINANT MATERIAL REMOVE SAID CONTAMINANT MATERIAL FROM SAID GAS, A PAIR OF CENTRIFUGAL SEPARATORS EACH HAVING A CYLINDRICAL WALL FOR COLLECTING AND REMOVING SAID AQUEOUS DROPLETS FROM SAID MOVING STREAM, MEANS COMPRISNG A PLURALITY OF GENERALLY PLANAR WALLS DEFINING TWO SEPARATE PASSAGEWAYS RESPECTIVELY CONNECTING THE INTERIOR OF SAID MIXING TUBE WITH THE INTERIORS OF SAID PAIR OF CENTRIFUGAL SEPARATORS FOR CONDUCTING SAID MOVING STREAM FROM SAID MIXING TUBE AND SPLITTING SAID STREAM INTO TWO SEPARATE STREAMS CONDUCTED RESPECTIVELY TO SAID CENTRIFUGAL SEPARATORS, AND FOR INPARTING TO EACH OF SAID MOVING STREAMS AS IT ENTERS THE ASSOCIATED SEPARATOR A RECTANGULAR CROSS SECTION HAVING ITS NARROW DIMENSION NORMAL TO SAID CYLINDRICAL WALL OF SAID ASSOCIATED SEPARATOR, AND SAID PLANAR WALLS ALSO INCLUDING TWO ADJACENT GUIDE VANES, EACH OF SAID GUIDE VANES EXTENDING FROM SAID MIXING TUBE INTO ONE OF SAID SEPARATORS AN BEING MOVABLE FOR VARYING THE NARROW DIMENSION OF ONE OF SAID MOVING STREAMS TO INDIVIDUALLY CONTROL THE VELOCITIES AT WHICH SAID MOVING STREAMS RESPECTIVELY ENTER THE ASSOCIATED CENTRIFUGAL SEPARATORS.

Claim 3

Apparatus for the removal of contaminant materials such as particulate matter and gaseous substances from a stream of gas comprising: a mixing tube, means comprising a steam and water ejector nozzle for forming a moving jet comprising a mixture of steam and aqueous droplets in said mixing tube to drive a gas containing at least one contaminant material through said mixing tube and to form therein a moving stream comprising a turbulent mixture of said gas and said contaminant material with said steam and said aqueous droplets, in which mixture said aqueous droplets by contact with said contaminant material remove said contaminant material from said gas, a pair of centrifugal separators each having a cylindrical wall for collecting and removing said aqueous droplets from said moving stream, means comprising a plurality of generally planar walls defining two separate passageways respectively connecting the interior of said mixing tube with the interiors of said pair of centrifugal separators for conducting said moving stream from said mixing tube and splitting said stream into two separate streams conducted respectively to said centrifugal separators, and for imparting to each of said moving streams as it enters the associated separator a rectangular cross section having its narrow dimension normal to said cylindrical wall of said associated separator, said planar walls including a divider having a planar surface extending from said mixing tube to one of said separators and a planar surface extending from said mixing tube to the other of said separators and each of said planar surfaces being substantially in a plane tangent to the cylindrical wall of the associated separator, and said planar walls also including two adjustable guide vanes, each of said guide vanes extending from said mixing tube into one of said separators and being movable toward and away from one of said planar surfaces of said divider for varying the narrow dimension of one of said moving streams to individually control the velocities at which said moving streams respectively enter the associated centrifugal separators.

Claim 4

Apparatus for the removal of contaminant materials such as particulate matter and gaseous substances from a stream of gas comprising: a mixing tube, means comprising a steam and water ejector nozzle for forming a moving jet comprising a mixture of steam and aqueous droplets in said mixing tube to drive a gas containing at least one contaminant material through said mixing tube and to form therein a moving stream comprising a turbulent mixture of said gas and said contaminant material with said steam and said aqueous droplets, in which mixture said aqueous droplets by contact with said contaminant material remove said contaminant material from said gas, a pair of centrifugal separators each having a cylindrical wall for collecting and removing said aqueous droplets from said moving stream, means comprising a plurality of generally planar walls defining two separate passageways respectively connecting the interior of said mixing tube with the interiors of said pair of centrifugal separators for conducting said moving stream from said mixing tube and splitting said stream into two separate streams conducted respectively to said centrifugal separators, and for imparting to each of said moving streams as it enters the associated separator a rectangular cross section having its narrow dimension normal to said cylindrical wall of said associated separator, said planar walls including a divider having a planar surface extending from said mixing tube to one of said separators and a planar surface extending from said mixing tube to the other of said separators and each of said planar surfaces being substantially in a plane tangent to the cylindrical wall of the associated separator, and said planar walls also including two adjustable guide vanes, each of said guide vanes extending from said mixing tube into one of said separators and being movable toward and away from one of said planar surfaces of said divider for varying the narrow dimension of one of said moving streams to individually control the velocities at which said moving streams respectively enter the associated centrifugal separators.