Boilers

Details Boilers Boilers

1982-08-20

1984-06-26

Yuen, Henry C.

Liquid heaters and vaporizers

Miscellaneous

122149, 110204, F22B 712, F23H 1110

Patent

active

044559682

ABSTRACT:
A shell boiler is disclosed having apparatus for feeding solid fuel to a furnace grate, contained within a furnace tube of the boiler, downwardly through the steam and/or water space of the boiler. The apparatus for feeding solid fuel to the furnace grate comprises a device for classifying and separating fine particles of fuel, having a particle size below a predetermined size, from the remainder of the fuel and feeding the fine particles into the furnace tube at a different location to that at which the remainder of the fuel is introduced into the furnace tube. The fine particles may be fed through a grit arrestor and fed into the furnace tube along with the grit separated by the grit arrestor.

REFERENCES:
patent: 3638621 (1972-02-01), Craig
patent: 4002148 (1977-01-01), Harding
patent: 4080931 (1978-03-01), Northcote
patent: 4080932 (1978-03-01), Northcote
patent: 4162686 (1979-07-01), Infield et al.
patent: 4184456 (1980-01-01), Taylor et al.
patent: 4260369 (1981-04-01), Warshawsky
patent: 4276020 (1981-06-01), Shibuya et al.
patent: 4296712 (1981-10-01), Vogt
patent: 4312919 (1982-01-01), Devanney
patent: 4349969 (1982-09-01), Stewart et al.

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