A method for manufacturing recycled ash and a system for manufacturing recycled ash

摘要

PROBLEM TO BE SOLVED: To provide a method for producing a recycled ash product controlled at an appropriate concentration of an environmentally regulated substance even if the state of ash fluctuates. A method for producing a recycled ash product in which the concentration of an environmentally regulated substance is controlled, an analysis step (S11) for analyzing the elemental concentration of ash used in the recycled ash product, an elemental concentration of ash, and regeneration. Based on the concentration correlation prediction formula obtained by multivariate analysis using the material concentration of the material used for the product and the environmentally regulated substance concentration of the recycled ash obtained by combining these as teacher data, the analysis is performed in the above analysis step. A calculation step (S21) for calculating the material concentration for keeping the environmentally regulated substance concentration of the recycled ash product below the control value with respect to the element concentration of the ash, and the calculation step calculated by the calculation step. A method for producing a recycled ash product, which comprises a mixing step (S31) of mixing the materials at a material concentration. [Selection diagram] Fig. 2