The utility model relates to the technical field of
asphalt production, in particular to a
flue gas treatment device which comprises a
smoke suction hood, a first filter screen and a dismounting
assembly, and the dismounting
assembly comprises two positioning blocks, two springs, two sliding blocks, two
insertion blocks, a fixing rod and a treatment mechanism; when
smoke generated during
asphalt production needs to be treated, the treatment mechanism is started, the
smoke is sucked into the smoke suction hood, the first filter screen is heated by starting the
electric heating plate on the first filter screen, the situation that the first filter screen is blocked after micro-particle
asphalt in the smoke is cooled is prevented, and the smoke is treated through the treatment mechanism after entering the smoke suction hood, so that the smoke generated during asphalt production is effectively prevented from entering the smoke suction hood. And
after treatment is completed, a worker can hold a fixing rod, drive a sliding block to move on a positioning block and compress a spring, so that an
insertion block moves along with the sliding block and slides out of the first filter screen, and then the
insertion block does not abut against the first filter screen any more, and the worker can conveniently take down the first filter screen from the smoke suction hood for cleaning.