Dry pulverized coal supply system of coal gasification combined power generation system

摘要

The present invention discloses a dry pulverized coal supplying apparatus for a coal gasification combined cycle power generation system.;The present invention relates to a gasifier for injecting pulverized coal and an oxidant through an injection nozzle and generating coal gas through the gasification reaction; A feed hopper for feeding pulverized coal into the gasifier through a stream; A high-pressure transporting nitrogen pipe for transporting the pulverized coal supplied from the feed hopper to the injection furnace; A high pressure primary and secondary oxygen tube for supplying an oxidant to the injection nozzle; And means for preventing clogging of the pulverized coal at the side supplied to the gasifier through the injection nozzle. The clogging of the pulverized coal generated at the inlet side of the injection nozzle can be removed by injecting high pressure nitrogen . Therefore, by supplying fine coal smoothly, it is possible to operate a stable gasifier.