Process and apparatus for charging solid fuels into a fixed-bed

Details Process and apparatus for charging solid fuels into a fixed-bed Process and apparatus for charging solid fuels into a fixed-bed

1981-06-10

1983-09-20

Kratz, Peter F.

Gas: heating and illuminating

Generators

Cupola

48 73, 48 77, 414160, C10J 330

Patent

active

044053401

ABSTRACT:
The apparatus serves to continuously charge coarse-grained and fine-grained solid fuels by means of a rotary distributor onto a fixed bed of fuel. The fixed bed is disposed within a reactor for gasifying the fuels. Gasifying agents comprising oxygen, steam and/or carbon dioxide are passed through the fixed bed from below. Residual matter left after the gasification is withdrawn under the fixed bed as solid ash or liquid slag. Fine-grained fuel having a mean particle size up to 5 mm are placed onto the fixed bed as helical layers separately form more coarsely grained fuel having a mean particle size above 5 mm. The more coarsely grained fuel is deposited directly on fine-grained fuel which has just been deposited.
The gasifier comprises a rotary distributor that includes at least one passage for the fine-grained fuel and at least one passage for the more coarsely grained fuel. The inlet of the passage for fine-grained fuel is disposed near the center of the rotary distributor. The inlet of the passage for the more coarsely grained fuel is disposed near the periphery of the rotary distributor.

REFERENCES:
patent: 2654594 (1953-10-01), Somogyi
patent: 3799368 (1974-03-01), Wieczorek
patent: 4029220 (1977-06-01), Greaves
patent: 4040800 (1977-08-01), Rudolph et al.

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