Spray type wet scrubber

Claim 1

In a spray type wet scrubber apparatus including an elongated vertical housing (1) with a top end, center section, and bottom end, a gas inlet at one of said ends, a gas outlet at the other of said ends, a plurality of parallel scrubbing liquid pipes (2 1 ) horizontally disposed across said center section and a plurality of spray nozzles (2) extending from said pipes (2 1 ), said housing having two sets of partition walls (3) each set having a plurality of parallel walls, the walls in the one set being at right angles to those in the other set so as to form a plurality of separate chambers with at least one nozzle (2) being allocated to each chamber, so that a dust laden gas stream flows across said chambers from said inlet to said outlet said spray nozzles (2) spraying a scrubbing liquid onto the moving dust laden gas forming dust laden drops which inpinge on the surrounding surfaces of the partition walls; the improvement therein consisting of having said gas inlet at the top end, the gas outlet at the bottom end, said spray nozzles being so disposed as to spray upwards and a plurality of wash liquid feeders means (4) comprising a wall top flange cover (5) at the top of each partition wall with feeder pipes (4) within said cover flanges alongside the top of each wall with a plurality of spray orifices at the underside thereof to spray wash liquid down the walls.