Heat control method of PVC drying device

• Main Authors: SU BAOYU, KANG SHUO, CHEN XIANGGUI, MENG QINGXIN, ZHANG SHUAIJIE, ZANG CHUNHUA, MA CHUANSHAN, KONG QINGRU, ZANG BOFENG
• Format: Patent
• Language: Chinese; English
• Published: 11.10.2022
• Subjects: MAKING GRANULES OR PREFORMS; PERFORMING OPERATIONS; PREPARATION OR PRETREATMENT OF THE MATERIAL TO BESHAPED; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIALCONTAINING PLASTICS; TRANSPORTING; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

A heat control method of a PVC drying device belongs to the technical field of PVC drying automatic control, the PVC drying device is provided with a drying bed, and the heat control method comprises the following steps: S01, acquiring historical data of lower temperature of two chambers of the first bed, wind temperature and opening of a steam valve entering the bed, and historical data of lower temperature of the two beds, wind temperature and opening of the steam valve entering the bed; s02, establishing mathematical models of the air temperature and the lower temperature of the first bed and the second chamber, the opening degree of a steam valve entering the bed and the lower temperature of the first bed and the second chamber, and mathematical models of the air temperature and the lower temperature of the second bed, and the opening degree of the steam valve entering the bed and the lower temperature of the second bed; s03, establishing a heat controller of the PVC drying device according to the obtaine