Double-return multi-gradient circulating fluidized bed gasification device

• Main Authors: ZHOU LIGUO, LI LING, WEI TONGYONG, LI QIANGBIN, SHANG GUIXIN, ZHANG JIFU
• Format: Patent
• Language: Chinese; English
• Published: 08.12.2023
• Subjects: CARBURETTING AIR OR OTHER GASES; CHEMISTRY; FUELS; LUBRICANTS; METALLURGY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; TECHNICAL GASES CONTAINING CARBON MONOXIDE

The utility model discloses a double-return multi-gradient circulating fluidized bed gasification device, and relates to the technical field of circulating fluidized beds. A first feeding hole, a second feeding hole, a first discharging hole, a second discharging hole and a third discharging hole are formed in the cyclone separator; the first feeding hole is communicated with the furnace body through a flue gas channel; one end of the first return feeder is communicated with the first discharge port through a coarse particle vertical pipe channel, and the other end of the first return feeder is communicated with the furnace body; one end of the second return feeder is communicated with the second discharge port through a fine particle vertical pipe channel, and the other end of the second return feeder is also communicated with the furnace body; and the coal gas outlet flue is communicated with the third discharge port through the central cylinder, and the fine particle vertical pipe channel is communicated w