You have an air leak somewhere. Need a closer look at the drum. any air leak will feed the fire. Lid should fit on tight, and weld around the 3/4 " fittings if needed. I can't tell from the picture, is the base of the drum crimped on, or loose?
Looking for the truth, in the thin blue smoke
Weber Silver 22.5X2, UDSx2
KCBS-CBJ #16571, Member GLBBQA
Roadmaster BBQ comp team
Proud member of the Blue Thermapen Association
Certified MOINKballer Class of 2008