Mathematical modeling and optimization of spiral drum screen in the concrete residue recovery system

Abstract

To overcome the drawbacks of the traditional concrete residue recovery system, the processing capacity is insufficient and the volume is large. This paper deals with the mathematical modeling and optimization of the spiral drum screen in the concrete residual recycling system. First, based on the maximum amount of material taken by the first spiral at the feed inlet, the paper establishes a theoretical model of screening capacity. Second, according to the relationship between the number of material drops and the screening efficiency, the model of screening efficiency was established from the optimal separation angle of materials. Finally, with the minimum volume of the spiral drum screening sieve as the optimization target, the optimization model was established with the constraints of system screening capacity, screening efficiency, drive power and structural strength. Based on the optimization results, spiral drum screening was produced. The experimental results show that under the condition of 90% screening efficiency, the quality of the spiral drum screen is reduced by 35%, and the screening treatment capacity is doubled, which illustrates the feasibility of the method.