Wood gas cooling and washing installations
From a sheet iron receptacle 600 mm in diameter by 1300 mm in height a half-inch water tube with a disc attached at the end having holes like an ordinary shower, sprays water like rain on the hot gases. The water is then discharged into another receptacle where it becomes atomized by an electrically driven fan turning at 1500 rpm. The same water is then discharged by gravity into the bottom of the gasifier where, by passing through a row of bricks, it makes an hydraulic seal to prevent the combustible gases from escaping. Lastly, the water circulates, drawing the ashes into drains. The final temperature of the cooling water fluctuates between 75° and 85 C.