Protection for boiler combustion chamber - has pipes embedded and seated in bricks forming chamber walls

摘要

The protector is formed by screens of pipes in a boiler combustion chamber, burning household rubbish. Each brick (18) has a housing (20) and feet (22) are welded on the outside of the pipe (10). A retainer (24) is fixed to the foot. Each housing is blocked by a cowl (26). Sealing between adjoining bricks is by an asbestos cord (32), housed in a groove in each brick. Alternatively, the seal may be made by a refractory silicon carbide cement. Spaces between pipes and bricks are filled with the cement.