Pretreatment device for moutan bark

The utility model discloses a moutan bark pretreatment device, which comprises a moutan bark screening device and a box body arranged at the bottom end of the moutan bark screening device, the screening device comprises a screening box, the top of the screening box is provided with a feed hopper communicated with the interior of the screening box, and a screen is obliquely arranged in the screening box. An opening matched with the screening box is formed in the top end of the box body, the bottom of the screening box extends into the box body, and a driving mechanism allowing the screening box to ascend, descend and shake in the height direction of the box body is arranged in the box body. The device has the beneficial effects that vibration of moutan bark on the surface of a screen in the screening box is achieved through the screening box, and preliminary falling of dust and impurities on the surface is completed; and the vibrated moutan bark is soaked and washed through the cleaning device, and the cleanin