Method and device for controlling moisture in production of tobacco shred

The invention discloses a method and a device for controlling moisture in production of a tobacco shred. The method comprises the following steps of S1: calculating the front feedback water addition amount according to the parameter of cut-off moisture of a current plate and inlet moisture before n seconds; S2: calculating the feedback water addition amount according a current SPC (Statistical Process Control) statistic; S3: adding the front feedback water addition amount and the feedback water addition amount to acquire currently required water flow, and calculating the opening of a corresponding valve; and S4: comparing outlet moisture before m seconds with target moisture, and regulating the parameter of the cut-off moisture in real time. The device is a device used to implement the method. The method has the advantages of reducing labor intensity, improving efficiency, improving inherent quality of the product, and improving degree of satisfaction of a subsequent process.