Fluid bed furnace and cover assembly for use thereon

Details Fluid bed furnace and cover assembly for use thereon Fluid bed furnace and cover assembly for use thereon

1978-11-06

1980-09-02

Camby, John J.

Heating

Heating or heat retaining work chamber structure

Door, cover or port

34 57A, 110216, 110245, 432 58, 432197, F27D 118, F27B 1500

Patent

active

042204453

ABSTRACT:
The disclosure relates to an improved fluid bed furnace which includes a new and improved cover assembly and which is of the type including a fluid bed including a material which fluidizes upon being subjected to a flow of a gas mixture therethrough and a burner for distributing a gas mixture at an elevated temperature through the fluid bed material for fluidizing and agitating the fluid bed material. The cover assembly provides both exhaustion of the heated gas mixture from the furnace fluid bed and confinement of the agitated fluid bed material within the fluid bed. The cover assembly includes a hollow cap member having a bottom, a top, and an inner wall surface, a first aperture in the bottom communicating with the furnace fluid bed, and a second aperture in the top, and baffle means disposed within the hollow cap member between the first and second apertures and having an outer periphery spaced from the cap member inner wall surface but which is greater in dimension than the second aperture forming a space between the baffle means periphery and the cap member inner wall surface for exhausting the heated gas mixture from the fluid bed and forming a barrier for trapping the agitated fluid bed material within the fluid bed.

REFERENCES:
patent: 1776128 (1930-09-01), Otis
patent: 2932498 (1960-04-01), Metcalfe et al.
patent: 3397873 (1968-08-01), Ritchie et al.
patent: 3399874 (1968-09-01), Ritchie
patent: 3884617 (1975-05-01), Virr

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