Production equipment for removing formic acid in DMMn product

The utility model belongs to the technical field of fine chemical engineering converted from coal chemical engineering to petrochemical engineering, and relates to production equipment and a process for removing formic acid in a DMMn product. The equipment body comprises a primary flash evaporation system and an alkali washing system. The utility model belongs to the field of fine chemical engineering converted from coal chemical industry to petrochemical industry. In a traditional process, solid alkali is used in a production process; resistance drop in the equipment is large, and formic acid, formaldehyde and water contained in the materials cannot be removed; according to the device and the method, liquid alkali is adopted to replace solid alkali for production operation, actual production verifies that the liquid alkali can completely remove formic acid in the material and can also remove a small amount of formaldehyde and water, and meanwhile, the stability of the material and thecontinuous and stable op