Control optimization method and device used for fire grate incinerator and based on flame radiation images

Abstract

The invention discloses a control optimization method used for a fire grate incinerator and based on flame radiation images. The control optimization method comprises the following steps that the waste combustion conditions of all subareas are shot in real time, and image noise is eliminated; the multiple flame images are acquired, and the average values of R, G and B of the obtained images are calculated; the average values of the R, the G and the B are input into a trained BP neural network, and temperature field distribution and the average temperature T of all fire grate combustion areas are obtained; and the obtained flame average temperature T of all the combustion areas and a preset temperature range are compared and judged, and accordingly the feeding speed of all the combustion areas, the primary air volume and the secondary air volume are adjusted correspondingly. The invention further discloses a control optimization device used for the fire grate incinerator and based on the flame radiation images. According to the control optimization method used for the fire grate incinerator and based on the flame radiation images, temperature fields of waste flame on all subarea fire grates can be quickly rebuilt in real time; by adjusting the combustion parameters of all the subarea fire grates correspondingly, real-time optimal control over waste burning uniformity and efficiency is achieved.

Description

technical field [0001] The invention relates to a waste incineration technology of a grate incinerator, and a control optimization method and device for a grate incinerator based on a flame radiation image. Background technique [0002] The grate furnace mostly adopts reciprocating mechanical grate for feeding, and this kind of grate is inclined downward at a certain angle; according to the needs of the combustion process, the grate is composed of multiple rows of grate, and each row of grate is arranged at intervals, which can Operate independently. The burned waste falls into the material trough through the hopper, and enters the furnace by the feeding device at the speed given by the system; The primary and secondary air entering from the bottom are mixed and turned, so that the waste can be dried, ignited, burned and even burned up. [0003] For example, the patent document whose publication number is CN102840586A discloses a domestic waste incinerator automatic combus...

AI Technical Summary

Problems solved by technology

However, since parameters such as main steam pressure and main steam temperature are not sensitive to changes in waste characteristics, there is often a large lag in the adjustment of feeding speed and primary and secondary air volumes; and the entire grate often follows a uniform speed feed

This has caused problems such as uneven combustion of materials on the grate, low combustion efficiency, and increased pollutant emissions.

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