Steel drum sealing cover structure for corrosive raw materials

The utility model provides a steel drum sealing cover structure for corrosive raw materials, which comprises a fixing ring, a clamping groove is arranged on the inner circle wall surface of the fixing ring, a positioning block is fixedly arranged at the bottom end of the fixing ring, a fixing block is fixedly arranged at the bottom end of the fixing ring, the positioning block corresponds to the fixing block, and the clamping groove is arranged in the clamping groove. A first positioning hole is formed in one side of the positioning block; the fixing assembly is arranged above the fixing ring and used for fixing the fixing ring, the steel drum cover can be fixed for the second time through a positioning block under the action of a bolt, the steel drum cover is tightly attached to the steel drum, and therefore corrosive raw materials in the steel drum are prevented from leaking out of the steel drum cover; and a first limiting plate and a second limiting plate can be close to each other under the meshing of a