Device for cleaning exhaust products

Claim 2

Apparatus for cleaning industrial exhaust gases comprising: a first chamber adapted for gasous flow therethrough having an inlet portion for receiving the exhaust gases and an outlet portion for directing said gases therefrom, spray means disposed at a plurality of points between said portions for directing a water spray into the gas flow, a plurality of baffle plates between said portions oriented transverse to the direction of gas flow, whereby turbulent flow occurs over said baffle plates and moisture entrained contaminant particles deposit thereon, and means for collecting said moisture entrained contaminant particles; and, a second chamber including an inlet for receiving gas flow from said first chamber, a longitudinally extending central compartment therein and first and second longitudinally extending annular compartments concentric therewith, said first annular compartment communicating at one end with said inlet, first and second longitudinally extending spiral baffles projecting into said first annular compartment from the inner and outer annular walls thereof, respectively, whereby gaseous flow from said inlet spirals through said first annular compartment forcing the heavier components of the gas toward the outer annular wall and the lighter components of the gas toward the inner annular wall, outer collecting means in said first annular compartment associated with said outer annular wall and communicating with said second annular compartment to direct the heavier components of the gas into said second annular compartment, said outer collecting means comprising a plurality of spaced apart scoops disposed between adjacent turns of said second spiral baffle, said scoops opening into said first annular compartment in a direction opposite the spiral flow of gas therein and communicating through an opening in the outer annular wall of said first annular compartment with said second annular compartment, inner collecting means in said first annular compartment associated with said inner annular wall and communicating with said central compartment to direct the lighter components oF the gas into said central compartment said inner collecting means comprising a plurality of spaced apart scoops disposed between adjacent turns of said first spiral baffle, said scoops opening into said first annular compartment in a direction opposite the spiral flow of gas therein and communicating through an opening in the inner annular wall of said first annular compartment with said central compartment, and disposal means communicating with said central and aecond annular compartments.

Claim 3

Apparatus, as claimed in claim 1, including heat exchange means disposed between said first and second chambers for removing heat from exhaust gases which are above the vaporization point of water.

Claim 4

Apparatus, as claimed in claim 2, wherein said heat exchange means comprises a cooling coil over which the exhaust gases are caused to pass and through which water flows as the cooling medium.

Claim 5

Apparatus, as claimed in claim 1, wherein said spray means comprises a plurality of vertically spaced apart spray bars, each of said spray bars including a plurality of spray nozzles thereon.

Claim 6

Apparatus, as claimed in claim 1, wherein said first chamber includes a pair of side walls joined by end walls, a plurality of longitudinally extending interior walls mounted between said side walls whereby adjacent interior and end walls define longitudinally extending compartments therebetween, and said plurality of baffle plates are substantially parallel and vertically spaced and extend into each said compartment from the walls thereof.

Claim 7

Apparatus, as claimed in claim 5, wherein the baffle plates extending from a wall of each compartment are vertically offset with respect to the baffle plates extending from the opposite wall of the same compartment.

Claim 8

Apparatus, as claimed in claim 6, wherein the underside of each baffle plate forms an acute angle with the wall on which it is mounted.

Claim 9

Apparatus, as claimed in claim 1, including accelerating means to increase the velocity of gases entering said second chamber.

Claim 10

Apparatus, as claimed in claim 8, wherein said accelerating means comprises a blower fan in the inlet to said second chamber.

Claim 11

Apparatus, as claimed in claim 1, wherein said scoops are disposed along the underside of said spiral baffle and spaced at intervals of 90* therealong.

Claim 12

Apparatus, as claimed in claim 1, wherein said scoops are disposed along the underside of said spiral baffle and spaced at intervals of 90* therealong.

Claim 13

Apparatus, as claimed in claim 1, including damper means for controlling the flow of gases into said central compartment and said outer annular compartment.

Claim 14

Apparatus for cleaning industrial exhaust gases comprising: a first chamber, including a pair of side walls joined by end walls, adapted for gaseous flow longitudinally there-through, having an inlet portion closing the top thereof for receiving the exhaust gases and an outlet portion at the bottom thereof for directing said gases therefrom, a plurality of longitudinally extending interior walls mounted between said side walls and generally parallel with said end walls whereby adjacent interior and ends walls define longitudinally extending rectangular compartments therebetween, a plurality of substantially parallel, vertically spaced baffle plates extending into each said compartment from the walls thereof, the baffle plates extending from a wall of each compartment being vertically offset with respect to the baffle plates extending from the opposite wall of the same compartment, and the underside of each baffle plate forming an acute angle with the wall from which it extends, a plurality of spray bars vertically spaced apart on said side walls, each of said spray bars including a plurality of spray nozzles, and means for collecting moisture entrained contaminant particles which deposit on said baffle plates; and a second chamber including an inlet for receiving gas flow from said first chamber, said inlet including a blower fan therein to increase the velocity of the gases entering said second chamber, a longitudinally extending central compartment therein and first and second longitudinally extending annular compartments concentric therewith, said first annular compartment communicating at its lower end with said inlet, first and second longitudinally extending spiral baffles projecting into said first annular compartment from the inner and outer annular walls thereof, respectively, whereby gaseous flow from said inlet spirals upwardly through said first annular compartment forcing the heavier components of the gas towards the outer annular wall and the lighter components of the gas towards the inner annular wall, a plurality of outer scoops disposed along the underside of said second spiral baffle and spaced at intervals of 90* therealong, said scoops opening into said first annular compartment in a direction opposite to the spiral flow of gas therein and communicating through an opening in the outer annular wall of said first annular compartment with said second annular compartment, a plurality of inner scoops disposed along the underside of said first spiral baffle and spaced at intervals of 90* therelong, said scoops opening into said first annular compartment in a direction opposite to the spiral flow of gas therein and communicating through an opening in the inner annular wall of said first annular compartment with said central compartment; and disposal means communicating with said central and second annular compartments.

Claim 15

Apparatus for cleaning industrial exhaust gases comprising: a first chamber, including a pair of side walls joined by end walls, adapted for gaseous flow longitudinally there-through, having an inlet portion closing the top thereof for receiving the exhaust gases and an outlet portion at the bottom thereof for directing said gases therefrom, a plurality of longitudinally extending interior walls mounted between said side walls and generally parallel with said end walls whereby adjacent interior and ends walls define longitudinally extending rectangular compartments therebetween, a plurality of substantially parallel, vertically spaced baffle plates extending into each said compartment from the walls thereof, the baffle plates extending from a wall of each compartment being vertically offset with respect to the baffle plates extending from the opposite wall of the same compartment, and the underside of each baffle plate forming an acute angle with the wall from which it extends, a plurality of spray bars vertically spaced apart on said side walls, each of said spray bars including a plurality of spray nozzles, and means for collecting moisture entrained contaminant particles which deposit on said baffle plates; and a second chamber including an inlet for receiving gas flow from said first chamber, said inlet including a blower fan therein to increase the velocity of the gases entering said second chamber, a longitudinally extending central compartment therein and first and second longitudinally extending annular compartments concentric therewith, said first annular compartment communicating at its lower end with said inlet, first and second longitudinally extending spiral baffles projecting into said first annular compartment from the inner and outer annular walls thereof, respectively, whereby gaseous flow from said inlet spirals upwardly through said first annular compartment forcing the heavier components of the gas towards the outer annular wall and the lighter components of the gas towards the inner annular wall, a plurality of outer scoops disposed along the underside of said second spiral baffle and spaced at intervals of 90* therealong, said scoops opening into said first annular compartment in a direction opposite to the spiral flow of gas therein and communicating through an opening in the outer annular wall of said first annular compartment with said second annular compartment, a plurality of inner scoops disposed along the underside of said first spiral baffle and spaced at intervals of 90* therelong, said scoops opening into said first annular compartment in a direction opposite to the spiral flow of gas therein and communicating through an opening in the inner annular wall of said first annular compartment with said central compartment; and disposal means communicating with said central and second annular compartments.

Claim 16

Apparatus, as claimed in claim 13, including heat exchange means disposed between said first and second chambers, said heat exchange means comprising a cooling coil over which the exhaust gases are caused to pass and through which water flows as the cooling medium.

Claim 17

Apparatus, as claimed in claim 13, including dampers disposed in the outlet portions of said central compartment and said outer annular compartment for controlling the flow of gases into the respective compartments.

Claim 18

Apparatus, as claimed in claim 13, wherein said disposal means communicating with said second annular compartment comprises means for directing gases collected in said second annular compartment to the starting point of the industrial process which generated the exhaust gases.