Thermal insulation device for discharge pipe of reaction kettle

The utility model relates to a thermal insulation device for a reaction kettle discharge pipe, which comprises a reaction kettle body, the discharge pipe is connected to the reaction kettle body, and the discharge pipe is used for discharging materials generated in the reaction kettle; the shells are arranged on the outer wall of the discharging pipe in a sleeving mode, the multiple sets of shells are arranged, and each set of shell comprises two semicircular outer shells matched with each other; the fixing assembly is arranged between the two shells and used for fixing the two shells to the outer wall of the discharging pipe; the heat preservation layer is arranged on the inner wall of the shell and used for conducting heat preservation on the discharging pipe. The reaction kettle has the effect of improving the material preparation rate in the fractionation process by using the reaction kettle. 本申请涉及一种反应釜出料管用保温装置，其包括反应釜本体，其上连接有出料管，所述出料管用于将反应釜内产生的物料排出；壳体，其套设在所述出料管外壁上，所述壳体设置有多组，多组所述壳体均包含两个相互配合的半圆形外壳；固定组件，其设置在