Data-driven modeling furnace temperature control method for hazardous waste incineration rotary kiln

Abstract

The invention discloses a data-driven modeling furnace temperature control method for a hazardous waste incineration rotary kiln. The method comprises the following steps: S1: sampling and testing basic physical data of hazardous wastes to be processed, and obtaining the basic physical database of the hazardous wastes; S2: collecting rotary kiln operation data by using an incinerator DCS (Distributed Control System) system; S3: establishing a rotary kiln temperature fitting prediction model by adopting a self-regression sliding average modeling method according to the operation data of the rotary kiln and the basic physical database of the hazardous wastes; S4: predicting a temperature change in an operation of the rotary kiln according to the rotary kiln temperature fitting prediction model, and providing a control parameter correction value according to the predicted temperature; and S5: performing adaptive control on the operation of the rotary kiln in real time according to the modified control parameters, and making the rotary kiln run stably and smoothly. According to the data-driven modeling furnace temperature control method applied to the hazardous waste incineration rotary kiln, the automatic optimization control of the whole process of the rotary kiln feeding, combustion-supporting, wind supplementing and rotating speed adjustment are achieved, and the method has great help for improving the economic benefit of the hazardous waste rotary kiln.

Description

technical field [0001] The invention relates to the technical field of rotary kiln control, in particular to a data-driven modeling furnace temperature control method applied to a hazardous waste incineration rotary kiln. Background technique [0002] With the rapid development of my country's economy, industrial production capacity and people's living standards have been greatly improved, but at the same time, a large amount of solid waste has also been generated, which needs to be disposed of reasonably and properly. Among them, the special classification of hazardous waste should attract the most attention. Hazardous waste, as a special kind of solid waste, often has one or more characteristics that are potentially destructive to human health and the natural environment, such as toxicity, flammability, explosiveness, corrosiveness, and pathogenicity. . Among various hazardous waste treatment methods, incineration is the preferred treatment method for hazardous waste tre...

AI Technical Summary

Problems solved by technology

As for the hazardous waste rotary kiln, due to the complex composition of the feed material and the large fluctuation of the feed amount, it is difficult to effectively control the traditional method

In the process of hazardous waste treatment, there are relatively high requirements for the temperature stability of the rotary kiln. If the temperature is too high, the insulation layer in the furnace will be damaged, and a large amount of coking and slagging will be formed in the furnace; if the temperature is too low, the incineration of hazardous waste will be incomplete. Effectively destroy harmful substances

At present, the processing process mainly relies on on-site operators to make corresponding adjustments based on experience. The efficiency is low, and the furnace temperature is prone to be too high or too low, resulting in unplanned shutdown and significant economic losses.

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