Control method for coal gasifier

Abstract

The invention discloses a control method for a coal gasifier, which comprises the following steps implemented sequentially: S1, establishing a coal gasifier simulation model corresponding to the coal gasifier, wherein the coal gasifier simulation model comprises a plurality of model parameters; S2, collecting input data and output data of the coal gasifier during a certain time period, wherein the input data and the output data refer to constituents and contents as well as all the work parameters of input and output substances of the coal gasifier; S3, calculating values of the model parameters of the simulation model according to the input data and the output data collected; S4, collecting the real-time input data and the real-time output data of the coal gasifier, calculating the difference between the simulated output data and the real-time output data through the simulation model, returning to S2 if the difference is outside the error range, or continuing the next step if else; and S5, calculating work state parameters of the coal gasifier within a time period from the current time, and thus monitoring and adjusting the work state of the coal gasifier. The control method can adjust and monitor the coal gasifier efficiently and precisely in real time.

Description

technical field [0001] The invention belongs to the technical field of coal gasification furnaces, and specifically relates to a control method for coal gasification furnaces, in particular to a method for controlling coal gasification furnaces through a simulation model of coal gasification furnaces. The simulation model is based on mechanism modeling and data-based intelligence. identified combined. Background technique [0002] Coal gasifier is also called coal water slurry gasifier. It uses coal water slurry as raw material, oxygen as gasification agent, and has a relatively high working pressure. It belongs to pressurized spouted bed coal gasifier. Its working process: the coal-water slurry is broken by the high-speed and high-pressure oxygen flow through the nozzle, atomized and sprayed into the coal gasifier. The mist coal water slurry and oxygen are subjected to the high-temperature radiation of the refractory lining in the gas furnace, and undergo a series of compl...

AI Technical Summary

Problems solved by technology

However, in actual production, due to the characteristics of large and complex coal gasifier equipment, violent reaction, and high temperature in the furnace, it has created great difficulties for real-time measurement of the gas component content at the outlet of the coal gasifier and the determination of the temperature in the furnace.

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