Ordinary pressure circulating fluidized bed powder coal gasification stove

• Main Authors: HUANG SHAOMENG, LIAN LULU
• Format: Patent
• Language: English
• Published: 16.12.2015
• 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 an ordinary pressure circulating fluidized bed powder coal gasification stove, including gasifier, high temperature circulation separator, refeed line and coal gas export, the gasifier is for falling terrace structure, its top is the circular head, gasifier furnace body upper portion and middle part are drum type structure, and the upper portion diameter is greater than the lower part diameter, the gasifier bottom is the frustum structure, at structural coal mouth and the refeed line of being provided with of frustum, offer two row's ashes on lieing in same horizontal plane mouthful in gasifier bottom, be equipped with a plurality of spray tubes between frustum structure and the row's ash mouth, the high temperature circulation separator that this device adopted, can separate the fly ash that is greater than more than the 3um, can improve separation efficiency greatly than traditional cyclone, through setting up a plurality of nozzles, let the air speed be bigger than hydrogen burning rate, flame is long, can shen ru arrive center circle district, make in the circle district of center also the aerobic pneumatic transmission go into, the little drawback of conventional single low -pressure nozzle reaction range has been overcome, the more problem of dust in the fundamentally solution coal gas.