Cement raw material mill raw material fineness index prediction method, model training method and system

The invention provides a cement raw material mill raw material fineness index prediction method and a model training method and system, and belongs to the technical field of cement production. The method comprises the following steps: obtaining target process parameters in a cement raw material grinding raw material production process; calculating statistical characteristics of the target process parameters to obtain statistical characteristic values used for describing data characteristics of the target process parameters; inputting the target process parameters into a pre-trained auto-encoder, and extracting an output result of an encoder in the auto-encoder to obtain hidden layer information; and obtaining process parameter index information according to the hidden layer information and the statistical characteristic value, and inputting the process parameter index information into a pre-trained fineness index prediction model to obtain a fineness index prediction result. According to the method, the probl