Flue gas treatment system and filter pressing equipment

The invention particularly relates to a flue gas treatment system and filter pressing equipment, and relates to the technical field of flue gas treatment equipment. The flue gas treatment system comprises a first channel, a first treatment assembly and a second treatment assembly. The first channel is used for conveying flue gas, the first treatment assembly comprises a second channel, a washing part, an absorption part and a desorption part, the second channel is communicated with the first channel and the washing part, the washing part, the absorption part and the desorption part are sequentially communicated, the washing part is used for purifying the flue gas, and the absorption part is used for absorbing sulfur in the flue gas; and the desorption component is used for desorbing and discharging sulfur absorbed by the absorption component. The second treatment assembly comprises a third channel and a desulfurization part, the third channel communicates with the first channel and the desulfurization part, a