The set is mainly suitabe to the compouding coloring, drying of various as PE,PP,PVC as well as to the process of drying and devolatilizing of the engineering plastics as ABS,PC,etc. It can also be used in the compouding of phenolic resin. The sest combines the hot-mixing with the cooling-mixing, making the hot-mixing materials automatically getting in the cooling-mixing to the cooling-mixing to them cool to release the residual gas.