SLAG DISCHARGE APPARATUS FOR ENTRAINED-BED COAL GASIFICATION OVEN AND SLAG DISCHARGE METHOD USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a slag discharge apparatus for an entrained-bed coal gasification oven which stably discharges slag while preventing a slag discharge line from being clogged. SOLUTION: This slag discharge apparatus comprises a first cooling water supply line 30 and a first cooling water discharge line 34 both connected to a slag cooling chamber 4; a first slag discharge line 17 and a second slag discharge line 19 for connecting a slag cooling chamber bottom throttle section 5 to a slag lock hopper 20; a second cooling water supply line 32 connected to the first slag discharge line 17; and a high-pressure water supply line 23, a second cooling water discharge line 36, and a lock hopper slag discharge line 22 all connected to the slag lock hopper 20. On the second cooling water discharge line 36, a flow rate detection means 38 is attached.