Device system for preparing isocyanate by continuously mixing and emulsifying solid phase and liquid phase

• Main Authors: LIU WENJIE, XUE YONGHE, LIU JIATE, LU CHENGLIANG, SU HUAIBO
• Format: Patent
• Language: Chinese; English
• Published: 16.09.2022
• 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

The utility model provides a device system for preparing isocyanate by continuously mixing and emulsifying a solid phase and a liquid phase. The device system comprises a screw extruder, a crusher and a grinding and emulsifying machine which are sequentially connected along the moving direction of a solid-phase raw material, a rotary cutter is arranged at a feeding hole of the crusher; the axial direction of the rotary cutter is coaxial with the feeding direction of a solid-phase raw material; and a liquid-phase raw material feeding hole is formed below the rotary cutter. The device system provided by the utility model can continuously obtain uniform solid-liquid two-phase mixed emulsion, is beneficial to improving the selectivity and yield of isocyanate prepared by phosgenation reaction, is safe and efficient, and is suitable for industrial production of isocyanate. 本实用新型提供了一种固液两相连续混料乳化制备异氰酸酯的装置系统，所述装置系统包括沿固相原料移动方向依次连接的螺杆挤出机、破碎机和研磨乳化机；所述破碎机的进料口设置有旋转刀具；所述旋转刀具的轴向与固相原料的进料方向同轴；所述旋转刀具的下方设置有液相原料的进料口。本实用新型提供的装置系统可以