Nozzle tip for pulverized coal burner

摘要

PCT No. PCT/US82/00940 Sec. 371 Date Sep. 13, 1982 Sec. 102(e) Date Sep. 13, 1982 PCT Filed Jul. 12, 1982 PCT Pub. No. WO84/00314 PCT Pub. Date Feb. 2, 1984.An improved nozzle tip (10) for a burner on a pulverized coal-fired furnace for receiving a stream of pulverized coal and air discharging from the coal delivery pipe (50) of the burner and directing the pulverized fuel and air stream into the furnace, is comprised of a base body (20), a replaceable highly abrasion resistant insert (30), and a replaceable highly temperature resistant end cap (40) which is readily attachable by mechanical means (28, 48) to the base body with the abrasion resistant insert disposed therein. The insert defines a highly abrasion resistant flow conduit through the nozzle tip from the discharge end of the base body to the receiving end of the end cap through which the pulverized fuel and air stream passes from the burner into the furnace.