Migrating fluidized bed combustion system for a steam generator

Details Migrating fluidized bed combustion system for a steam generator Migrating fluidized bed combustion system for a steam generator

1983-01-07

1984-04-17

Favors, Edward G.

Liquid heaters and vaporizers

Miscellaneous

110245, 110263, 431170, 431173, F22B 100

Patent

active

044427964

ABSTRACT:
The invention comprises a steam generator having a migrating fluidized bed combustor system. The bottom, head end of the bed incorporates a support floor system through which air is admitted tangential to the floor in a manner which causes the bed to migrate in a retraceable track. Tangential admission of air cools the floor and inhibits reverse flow down through the floor when the bed is slumped. Particle entrainment velocities are developed at mid-point in the bed. Tangential entrainment gas flow assures uniform distribution of combustibles and inert material throughout the lower bubbling bed and furnace area above the mid-point. Platens in the furnace zone straighten gas flow for gravity separation of particulate at the outlet of heat transfer surface above the furnace.

REFERENCES:
patent: 4294178 (1981-10-01), Borio et al.
patent: 4308806 (1982-01-01), Uemura et al.
patent: 4372228 (1983-02-01), Korenberg

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