The invention discloses a
system for realizing high-efficient low-
NOx mixed
combustion of gasification carbon residues in a
cyclone furnace. A
water cooling pipe nest is arranged at the center of thecyclone cylinder, fireproof materials are applied on the
water cooling pipe nest to form a
liquid slag membrane, so that the ash-
retention rate of the
cyclone furnace is increased, and the gasification carbon residues are seized for wall adhering
combustion; a
pipe sleeve is arranged on the outer wall of the center
water cooling pipe
nest; a center
powder feeding sleeve pipe sleeve penetrates through a
combustor and extends to the
liquid slag membrane at the middle part of the center water
cooling pipe nest to start to form a region; the gasification carbon residues are preheated by the centerpowder feeding sleeve pipe sleeve, and then are integrally transported into a high temperature region of the
cyclone cylinder; through an air membrane separator, a high-
oxygen-concentration
air current is generated to be transported to the center
powder feeding sleeve pipe to assist the gasification carbon residues to fire and combust, and the generated low-
oxygen-concentration
air current is used for performing supplementary secondary air to enable deep
air separation effects of the cyclone cylinder to form, so that the fuel
NOx generation quantity is reduced; and steam and
slag water generated by cooled liquid slags are used in a
powder making
system to increase the energy utilization efficiency of the
cyclone furnace. According to the
system disclosed by the invention, high-efficient low-
NOx combustion of the gasification carbon residues in the
cyclone furnace can be realized, the ash-
retention rate and the energy utilization efficiency of the
cyclone furnace are increased.