COAL TRANSPORTATION SYSTEM OF COAL GASIFICATION POWER GENERATION PLANT

摘要

PROBLEM TO BE SOLVED: To provide a coal transportation system of a coal gasification power generation plant, which can improve plant efficiency by making efficient use of waste heat generated in a treatment process of produced gas produced in a gasification furnace for preheating inert gas for coal transportation so as to reduce the flow amount of transportation gas.;SOLUTION: The coal transportation system of the coal gasification power generation plant includes: a coal transportation line 51, in which coal 1 is conveyed with gasflow from a coal hopper 2 to the gasification furnace 3 using inert gas; and a char transportation line 52, in which char 9 is conveyed with gasflow from a char hopper 25 to the gasification furnace 3 using inert gas. There is installed a preheating means for preheating the inert gas performing gasflow transportation of coal 1 using the heat source generated in the treatment line of produced gas 5 produced in the gasification furnace 3 through at least the coal transportation line 51 among the coal transportation line 51 and the char transportation line 52.;COPYRIGHT: (C)2012,JPO&INPIT