The invention relates to a method for treating culm sheath waste by means of an airing rack, a
hair removal device and a flattening device. The method comprises the steps that bamboo shells obtained after
hair removal are dumped into a soaking tank to be soaked for 0.5 h to 2.5 h, and the bamboo shells fully absorb water; the soaked bamboo shells are steamed for 5 min to 8 min, and the steamed bamboo shells are put into a washing tank to be washed; and the washed bamboo shells are naturally aired on the airing rack, the
water content of the bamboo shells is lowered to about 18%-20%, then the bamboo shells are fed to the flattening device to be flattened, and the flattened bamboo shells are stacked and bundled and then pressed. The
hair removal device comprises a rack B and a hair removal roller obliquely arranged on the rack B. A feeding opening and a discharging opening are formed in the two ends of the hair removal roller correspondingly. Convex ribs are arranged on the inner wall face of the hair removal roller, and the length direction of the convex ribs is consistent with that of the hair removal roller. The hair removal roller is connected with a drive mechanism E. According to the technical scheme, the bamboo shells can be effectively flattened, and reliable support is provided for
machining and utilizing of the bamboo shells.