Simulation and Structural Optimization Design of the Feeding Section of Single Screw Extruder

This article proposes a method based on response surface model and improved frost algorithm to optimize the structure of the feeding section screw of the rubber extruder, aiming at the problems of low production efficiency and uneven mixing of rubber materials. Using Fluent software to conduct numerical simulation of the flow field in the feeding section of the extruder, under the condition of a speed of 40r/min, setting appropriate boundary conditions to study the movement law of the rubber material. Using Central Composite Design (CCD), 20 numerical simulations were conducted on the feeding section screw. The screw parameters were taken as input factors, with the average flow velocity of the rubber material as the response, and a quadratic response model was established in Design-Expert. Building upon the original Frost Algorithm, an Improved Rime Optimization Algorithm (IRIME) was proposed to optimize the screw's structural parameters and obtain the best design scheme. Simulation results demonstrate that the screw parameter optimization method based on the improved Rime Algorithm proposed in this paper holds significant practical significance for enhancing the performance of screw equipment and optimizing fluid transportation processes.