Temperature field distribution non-contact measuring method in danger wastes thermal decomposition incineration furnace

Abstract

The invention discloses a non-contact measuring method of temperature field distribution in an incinerator for thermal decomposition of hazardous wastes. The method comprises the following steps: firstly, 3D grid division is carried out on an incineration system by infrared thermal radiation characteristics of high-temperature smoke in the incinerator, and a radiation projection equation is established; then an infrared radiation projection picture is obtained by equipping infrared radiant energy sensors at different positions, and radiation projection values of different wavelengths are extracted from an infrared radiant energy picture; finally, temperature distribution data of a rotary kiln and a secondary incineration chamber in a hazardous waste incineration system are computed by combining a reconstruction algorithm of 3D temperature distribution in the incineration system. The temperature field distribution reconstruction method based on the infrared radiant energy picture is a non-contact online temperature measurement method for reconstructing the 3D temperature distribution in the incineration system in an online manner based on the infrared radiation transfer characteristic of the high-temperature smoke in the hazardous waste incineration system and by the acquired infrared radiant energy picture.

Description

technical field [0001] The invention relates to a measurement method, in particular to a non-contact measurement method for temperature field distribution in a pyrolysis incinerator of hazardous waste. Background technique [0002] The core of hazardous waste incineration disposal technology is to remove harmful substances in waste through high-temperature heat treatment, and achieve the purpose of fully reducing volume and stabilizing ash. The temperature distribution and changes in the incineration process play a decisive role in the efficiency of incineration disposal, slagging in the furnace, and the generation and emission of pollutants, especially the emission of organic pollutants such as dioxin. The incinerator for hazardous waste pyrolysis incineration is a large rotating part, and it is difficult to arrange the detection points of the conventional contact point measurement method, and it cannot truly reflect the distribution of the temperature field in the furnace....

AI Technical Summary

Problems solved by technology

The incinerator for hazardous waste pyrolysis incineration is a large rotating part, and it is difficult to arrange the detection points of the conventional contact point measurement method, and it cannot truly reflect the distribution of the temperature field in the furnace. However, non-contact measurement methods such as thermal imaging cameras can only obtain Projected temperature of the flame in the incinerator

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