Patent ID: 9593795
Date: 2017-03-14
CPC Classifications: F16L,F23D,F23K

Claim:
1. A fuel head assembly for directing pulverized solid fuel entrained in a gas stream into a furnace, the fuel head assembly comprising: a casing having an inlet port flange at one end of the casing, an outlet port flange at another end of the casing, and an elbow opening disposed in an outer radial portion of the casing, wherein the elbow opening extends between the inlet port flange and the outlet port flange, and wherein the casing includes an outwardly extending casing flange disposed about the elbow opening; a curved back cover including an outwardly extending cover flange in parallel contact with and removably attachable to the outwardly extending casing flange to form an arcuate conduit having an inner wall; a wear-resistant casing liner being tubular and disposed within the arcuate conduit to form a tubular inner wall extending circumferentially about the inner wall of the conduit and fluidly coupling the inlet port flange and the outlet port flange, the wear-resistant casing liner including an upper casing liner section, a middle casing liner section and a lower casing liner section being insertable into and replaceable through the elbow opening of the casing, wherein each of the upper casing liner section, the middle casing liner section and the lower casing liner section includes at least one of a tab and a complementary notch to interconnect the upper casing liner section, the middle casing liner section and the middle casing liner section together.