For an electro-chemical process of the chloride resin shop in the industry polyviny, the model of process industry
shop scheduling with finite intermediate storage is established based on generalized rough set, where the uniform time
discretization model is used to express the time, and the generalized rough set is also used to describe uncertain parameters,
such as the input-output ratio and the rate of equipment convertion. The aim of the model is to maximize output value and
precision, and the constraints such as equipment capacity, production capacity and material balance, are considered. Finally,
the improved differential evolution algorithm is applied to solve the problem. Simulation results show the feasibility and
effectiveness of the proposed algorithm and the model.