Improvements relating to furnaces for burning pulverulent fuel, and similar furnaces, used in conjunction with lancashire, cornish and like boilers

摘要

209,511. Laker, F. S. Oct. 19, 1922. Feed-water, heating.-The connection between an external furnace burning powdered fuel and a Cornish or like boiler flue is made by a waterjacketed pipe a, the water jacket comprising a centrally disposed box e having a sludge outlet f at the bottom and an aperture g at the top provided with a removable cover (not shown) for cleaning purposes. The box e is connected by pipes to a feed-water tank to form a closed circuit for the heating of feed-water.