External circulation cooling device for polyurethane premix reaction kettle

• Main Authors: LIU WEI, QIU JIAHAO, LIU MINGSHENG
• Format: Patent
• Language: Chinese; English
• Published: 01.02.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

An external circulation cooling device for a polyurethane premix reaction kettle relates to the technical field of polyurethane production equipment and is characterized in that an upper cover is arranged at the upper end of the reaction kettle, a discharge pipe is mounted at the bottom of the reaction kettle, and a switch valve is mounted at the tail end of the discharge pipe; a cooling mechanism is arranged on one side of the reaction kettle, the cooling mechanism comprises a feed port and a discharge port, a pipeline I is mounted between the feed port and the discharge pipe, a valve I is mounted at the end part, connected with the discharge pipe, of the pipeline I, and the horizontal height of the feed port is higher than the height of the switch valve; the discharging port is connected with a second pipeline, a second valve is arranged at the other end of the second pipeline, the end of the second pipeline is installed on the upper cover, a third pipeline is installed on the side, opposite to the second u