Multi-jet composite fluidized bed gasification device for coal and biomass
A fluidized bed gasification and biomass technology, which is applied in the direction of granular/powdered fuel gasification, can solve the problems of investment, operation and maintenance costs, etc., to improve fluidization performance, transfer and reaction enhancement, and guarantee The effect of feeding
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[0019] The fluidized bed consists of three parts: the lower bed body 4, the middle enlarged section 5 and the upper enlarged section 6. The diameter of the middle enlarged section 5 is larger than that of the lower bed body 4, the diameter of the upper enlarged section 6 is larger than that of the middle enlarged section 5, and the upper enlarged section There is a cyclone separator 8 in the section 6, the top of the cyclone separator 8 is the syngas outlet 7, the bottom of the lower bed body 4 has a conical structure, and the jet tube is divided into the main jet feed tube 2 and the auxiliary jet tube 3, and the bottom of the lower bed body 4 is in a conical structure. The tapered structure at the bottom of the body 4 is equipped with an auxiliary jet tube 3 in two layers along the radial direction, and a main jet feed tube 2 is installed at the center of the bottom of the lower bed body 4 and on the same level as the auxiliary jet tube 3, and the lower bed body 4. The bottom ...
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