▎ 摘　　要

NOVELTY - The utility model claims a light high strength heat insulation refractory brick, comprising a refractory brick main body, graphene heat insulation layer and the third trapezoidal groove, the refractory brick main body top centre position is provided with a first trapezoidal clamping block, the first trapezoidal clamping block is fixedly set on the top centre of the refractory brick main body, the shape of the first trapezoidal clamping block is isosceles trapezoid, two sides of the first trapezoidal clamping block is provided with a pouring hole, the pouring hole is fixedly opened on the top surface of the refractory brick main body, the pouring hole passes through the refractory brick main body and is connected with the bottom of the refractory brick main body, one side of the pouring hole far away from the first trapezoidal clamping block is provided with a graphene insulating layer, the graphene insulating layer is fixedly set on two sides of the inner part of the refractory brick main body, one side of the outer side of the refractory brick main body is provided with a first side, the inner side of the first side is fixedly connected with the graphene heat insulation layer.