公开(公告)号：EP4349472A1

公开(公告)日：2024-04-10

申请号：EP22937279.2

申请日：2022-12-15

申请人： Tianhua Institute Of Chemical Machinery & Automation Co., Ltd ,  Tianhua Institute (Nanjing) Intelligent Manufacturing Co., Ltd

发明人： DOU, Yan ,  ZHAO, Xu ,  LI, Peng ,  MA, Yaohong ,  YANG, Shaohua ,  HAN, Dongzhao ,  LEI, Menglong ,  XIE, Xiaoling ,  LUO, Jian

IPC分类号： B01F35/45 ,  B01J19/20 ,  B01J4/00 ,  B01J19/00 ,  B01F27/1145

摘要： The present disclosure relates to the field of curing equipment, and discloses a polyvinyl alcohol (PVA) curing machine, including a thermally conductive housing provided with material inlets configured to add additives, where a material outlet is provided in one end of the thermally conductive housing; and a heat tracing mechanism arranged on the thermally conductive housing and configured to heat the thermally conductive housing and heat materials through the thermally conductive housing. By arranging the heat tracing mechanism, the curing machine provided by the present disclosure can effectively control a temperature of an alcoholysis reaction; by providing the plurality of material inlets, different additives can be added according to actual market requirements, such that a molar ratio of alkali added in alcoholysis, a concentration of a vinyl acetate methanol solution, and water content are adjustable; and thus, preparation of polyvinyl alcohol products with different specifications can be implemented by reprocessing a polyvinyl alcohol product prepared by an existing alcoholysis apparatus with the PVA curing machine provided by the present disclosure. Therefore, preparation of polyvinyl alcohol products with various specifications can be implemented by arranging the PVA curing machine provided by the present disclosure.