Usually, insert iron handle screwdriver between the steam seal block first, vertical hand hammer beating screwdriver handle to vibrate steam seal block, if the steam seal block corrosion is more serious, you can use a screwdriver insert into the T-slot pry it then lay back and forth activity until the steam seal block automatically pops up then do the demolition. After use screwdriver to vibrate and loose the steam seal block, then leaned beat screwdriver handle, so that after the seam on the end area of the steam seal block open, beat the end area of the steam seal block with a hand hammer arcruated steel stick. Don’t use flat shovel and screwdriver to thwack into the seam to distract the steam seal block.