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

Abstract

The invention relates to a data-driven modeling furnace temperature control method applied to a hazardous waste incineration rotary kiln, comprising S1: sampling and detecting basic physical property data of hazardous waste to be treated to obtain a database of basic physical properties of hazardous waste; S2: using an incinerator DCS system Collect the operating data of the rotary kiln; S3: According to the operating data of the rotary kiln and the database of the basic physical properties of hazardous waste, the autoregressive sliding average modeling method is used to establish the temperature fitting prediction model of the rotary kiln; S4: according to the temperature fitting prediction model of the rotary kiln The temperature change during operation is predicted and the corrected value of the control parameter is proposed according to the predicted temperature; S5: According to the corrected control parameter, the rotary kiln is adaptively controlled in real time, and the rotary kiln runs automatically and smoothly. The invention realizes the automatic optimal control of the whole process of feeding the rotary kiln, supporting combustion, supplementing air, and adjusting the rotating speed, and is of great help in improving the economic benefits of the rotary kiln for hazardous waste disposal.

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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