Intelligence system and process for material blending in the gasification

A system for material blending in gasification, the system including:

• a subsystem for material blending in gasification, wherein said subsystem for material blending in gasification includes a raw material property rapid analysis module, a blended material property prediction module, a blending scheme optimization module, and a blending scheme economy evaluation module;
• said raw material property rapid analysis module is for receiving characteristic spectral line intensities of in-furnace raw materials, and obtaining raw material property parameters of raw materials based on said characteristic spectral line intensities, wherein raw material property parameters of raw materials include carbon, hydrogen, sulfur, and ash-forming element contents, ash, volatile matter, and calorific value;
• said blended material property prediction module is for establishing a prediction model, which comprises predicting blended material property parameters with said prediction model based on said raw material property parameters and raw material proportions, wherein said prediction model predicts basic properties, ash fusion characteristics, slurry-forming characteristics, and gasification reactivity characteristics of a blended material by establishing a basic properties prediction model, an ash fusion characteristics prediction model, a slurry-forming characteristics prediction model, and a gasification reactivity characteristics prediction model respectively, wherein the basic properties prediction model is established based on a linear weighted sum algorithm;
• the ash fusion characteristics prediction model, the slurry-forming characteristics prediction model, and the gasification reactivity characteristics prediction model are established based on an algorithm including BP neural network or convolutional neural networks;
• said blending scheme optimization module is for establishing an optimization model and obtaining an optimized blending scheme with said optimization model based on said blended material property parameters, wherein one or more objective functions according to demand for a blending scheme and constraint conditions of the one or more objective functions are used to perform an optimization and output the optimized blending scheme;
• said blending scheme economy evaluation module is for analyzing a technical economy of the optimized blending scheme and outputting a blending scheme with an optimum technical economy, wherein the blending scheme economy evaluation module calls a process simulation software to perform a gasification simulation of the outputted blending scheme, and performs a technical and economic evaluation by judging whether a current blending scheme meets economic evaluation requirements, if yes, the current blending scheme is used as an optimum blending scheme;
• otherwise, the technical and economic evaluation is performed on an alternative feasible blending scheme, until the optimum blending scheme is obtained, wherein the alternative feasible blending scheme is a sub-optimum scheme that is outputted by the one or more objective functions;
• wherein;
• said blended material property parameters include basic properties, ash fusion characteristics, slurry-forming characteristics, and gasification reactivity characteristics,
• said basic properties include industrial analysis parameter, elemental analysis parameter, grindability parameter, and calorific value parameter;
• industrial analysis parameter includes moisture, ash, volatile matter, fixed carbon;
• elemental analysis parameter includes carbon, hydrogen, oxygen, nitrogen, and sulfur.