Process method for preparing high-quality cigarette filter stick through steam explosion tobacco stems

The invention discloses a process method for preparing a high-quality cigarette filter stick through steam explosion tobacco stems. The tobacco stems are subjected to winnowing to remove impurities and dust, atomization spraying is carried out on the surfaces of the tobacco stems, and moisture is kept between 40% to 50% after natural stem wetting; the wetted and softened tobacco stems are subjected to steam explosion; the tobacco stems are rapidly dehydrated and dried after steam explosion, and the moisture of the dried tobacco stems are required to be within 20%; the dried steam explosion tobacco stems are subjected to rough smashing, smashed steam explosion tobacco stem particles are subjected to moisture balancing in a constant-temperature and constant-humidity chamber, then secondary drying is carried out, the dried steam explosion tobacco stem particles are cooled in a drying vessel, and moisture absorption should be avoided before superfine treatment; the cooled steam explosion tobacco stem particles ar