1results about How to "Affect clarity" patented technology

The utility model relates to smelting equipment technical field, the utility model provides a kind of visual oxygen lance for blast furnace blow-in, it includes: oxygen lance shell, the middle part of oxygen lance shell is equipped with flow channel, the bottom end of oxygen lance shell is fixedly connected with the oxygen transmission pipe and compressed air transmission pipe communicated with flow channel;Feedback board, the middle part of feedback board is embedded with feedback lens, the edge of the side of feedback board close to oxygen lance shell is fixedly connected with multiple lock rods, the end of oxygen lance shell close to feedback board is equipped with quick-mounting assembly, quick-mounting assembly is used for cooperating lock rod positioning feedback board;Protective assembly, protective assembly is assembled in the side of feedback board away from lock rod. Through the above technical scheme, the technical problem that the peephole mirror is lacking in effective protective measures in the unused state in the prior art, when contacting with the peephole mirror outside, the peephole mirror is easily scratched, and is easily attached by dust, affects the clarity of peephole mirror is solved.