Yea its fine, the burnt insulators may make it taste funny if not replaced, but its a chunk of steel, not too much can damage it.
As long as the problem has been solved or fixed the actual atomizer should work for years
Clean it real good, get rid of the black if you can and go for it.
When you tighten the 510 screw always check the top to make sure the positive block isnt touching the negative and check the 510 connector itself to make sure the screw isnt pulled to one side touching anything.
If it happens again or theres still an issue come back n let us know right away