Combustion gas cleaning system

Claim 1

Combustion gas cleaning system including a transferring portion, a treating portion, an impurity collecting portion, an exhaust portion and a liquid purifying portion; said transferring portion including a substantially horizontal first duct member, said first duct member having one end communicating with a smokestack, said first duct member being inclined downwardly slightly from said smokestack, first spray means located around the inside periphery of said first duct member intermediate the length thereof and directed toward the axis thereof; said treating portion including an elongated substantially vertical chamber, the top of said chamber communicating with an end of said first duct member remote from said smokestack, said chamber having a generally circular cross section, a plurality of spaced fan members disposed within said chamber transversely along the length thereof, second spray means disposed adjacent each fan member, said second spray means being disposed around the internal periphery of said chamber and directed toward the axis thereof, each of said fan members being operatively connected to drive means located outside said chamber; said impurity collecting portion including a second horizontal duct member extending from the lower end of said chamber, a liquid reservoir disposed below said second duct member and communicating therewith through a plurality of openings in the bottom of said second duct member, the liquid level in said second duct member reducing the cross-sectional area thereof to an area more than one-half that of said chamber cross section, solids removal means disposed within said liquid reservoir; said exhaust portion including a generally vertically oriented third duct member extending upwardly from an end of said second duct member remote from said chamber, an exhaust deflecting section disposed on the upper end of said third duct member, third spray means located outside said third duct member adjacent said deflecting section; said liquid purifying portion including liquid receiving means communicating with said liquid reservoir and liquid recirculating means to said spray means of said chamber and said duct members; whereby impurities in combustion gases passing through said chamber are removed by said spray means and are collected in said liquid reservoir.