Abstract A method and apparatus for providing coke oven gas a supplementary fuel for a steam generator organization. The offgas from an arrangement of coking stokers is collected in a manifold which is in communication with a steam generator organization of the fluid recirculating type. The gases are transported from the manifold to the steam generator, under the influence of a conventional gas-conveying induced draft fan located therebetween, to provide a supplementary fuel for the steam generator. Between the induced draft fan and the manifold is located a heat exchanger for the purpose of passing the coke oven gases in heat exchange relationship with a portion of the main boiler circulating fluid to substantially reduce the temperature of the gases to facilitate their handling by the fan and externally insulated ducting means.
The apparatus of claim 1 wherein said means for yielding the supply of coke oven gas comprises a plurality of traveling grate coking stokers and a collection manifold for receiving the coke oven gases given off by each.
Claim 2
Dependent Claim
39 words
The apparatus of claim 1 wherein said means for transporting said coke oven gas from said coking means to said burner means includes an induced drafT fan, said fan located between said burner means and said heat exchange means.
Claim 3
Dependent Claim
37 words
The apparatus of claim 1 wherein said working fluid recirculating loop includes a main loop for primary working fluid recirculation and a branch loop for circulating a portion of said working fluid through said heat exchange means.
Claim 4
Dependent Claim
18 words
The apparatus of claim 4 wherein said heat exchange means is of the high pressure, extended surface type.
Claim 5
Independent Claim
72 words
A method for supplying coke oven gas to a fluid recirculating type steam generator organization as a supplementary fuel therefor, the steps comprising: collecting coke oven gas; diverting a portion of the steam generator working fluid; passing said portion of working fluid in heat exchange relationship with said coke oven to remove heat there from; and transporting the relatively cooled coke oven gas to the steam generator as a supplementary fuel therefor.