Abstract: A wet granulator includes a material cylinder. A cylinder cover is rotatably arranged at an opening of the material cylinder, and a locking member is arranged on the cylinder cover. The locking member includes a locking housing, and the locking housing is provided with a first through groove. A locking pin slides in the first through groove, and the locking pin includes a middle rod and a contacting rod. A first end of the contacting rod is connected to a first end of the middle rod to form a contacting platform, and a second end of the contacting rod extends out of the first through groove. The first end of the middle rod is arranged in the first through groove, and a second end of the middle rod extends out of the first through groove. The second end of the middle rod is provided with a pin head.

Abstract: A wet granulator includes a material cylinder. A cylinder cover is rotatably arranged at an opening of the material cylinder, and a locking member is arranged on the cylinder cover. The locking member includes a locking housing, and the locking housing is provided with a first through groove. A locking pin slides in the first through groove, and the locking pin includes a middle rod and a contacting rod. A first end of the contacting rod is connected to a first end of the middle rod to form a contacting platform, and a second end of the contacting rod extends out of the first through groove. The first end of the middle rod is arranged in the first through groove, and a second end of the middle rod extends out of the first through groove. The second end of the middle rod is provided with a pin head.

Abstract: The present invention discloses an authentication method based on private bytes of USB flash memory media, and implements a unit for executing authentication by using private bytes of USB flash memory media which is often used. A control chip of the USB flash memory disk receives a read/write instruction sent from the authentication unit, determines whether a read/write operation is executed to the private bytes. If it is, the read/write operation to the private bytes is executed. Otherwise, the read/write operation to normal bytes is executed. Thus, a variety of authentication information can be stored in the private bytes of the USB flash memory disk, which are invisible to users and can not be copied and deleted. The normal data can be stored in the normal bytes of the USB flash memory disk so that an encryption and authentication mechanism can be achieved with security and convenience.