Characterization method of coke oven vertical flue temperature

Abstract

The invention provides a characterization method of a coke oven vertical flue temperature, which comprises the following steps: acquiring a coke oven vertical flue thermal image by a thermal imager, meshing the thermal image, removing a circumferential irregular matrix and uniformly dividing the thermal image into a plurality of groups of matrixes to obtain characterization parameters of the maximum temperature of a vertical flue, the average temperature of the vertical flue and the temperature range of the vertical flue. According to the characterization method, the temperature and distribution of the coke oven vertical flue can be comprehensively characterized, the characterization mode of one-point temperature of an original coke oven vertical flue is thoroughly changed, and upgrading and updating of coke oven heating management can be achieved.

Description

Technical field [0001] The invention belongs to the coking production process technology, and relates to a method for characterizing the temperature of the vertical flue of a coke oven. Background technique [0002] The coking production process is the dry distillation of the coking coal in the carbonization chamber. To achieve stable and low-consumption production of high-quality coke in the coke oven, the high and long directions of the carbonization chamber and the heating between the chambers must be even. Gas and air flow are combusted in the way of diffusion combustion in the standing fire channel. The heat of the flame and hot exhaust gas generated by the combustion is transferred to the furnace wall through radiation and convection, and is transferred from the combustion chamber to the carbonization chamber through the furnace wall. [0003] The coking chamber and the combustion chamber of the coke oven are arranged alternately. An N-hole coke oven has N+1 combustion chambe...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the defect of poor representation of the point temperature of the existing coke oven flue, the present invention provides a characterization method for the temperature of the coke oven flue, which uses a thermal imager to collect thermal images of the coke oven flue, and then conducts the thermal images on the network Gridding, eliminating the irregular square matrix of the circumference, and dividing them into several groups of square matrix processing, and obtaining the characteristic parameters of the highest temperature Tmax of the vertical fire, the average temperature Tt of the vertical fire, and the extreme difference of the temperature of the vertical fire ΔT; The characteristic parameters measured in different time periods are drawn into a standard curve of temperature standard value and time; multiple groups of real-time measured temperatures are collected within a certain period of time and compared with the standard curve temperature under the same conditions to determine whether the coke oven vertical flue is working abnormally, When the measured temperature-time curve deviates from the standard value curve of the corresponding characterization parameter in a large range, it is judged that an abnormality has occurred, and it is necessary to adjust the work of the corresponding component of the corresponding characterization parameter; when the measured temperature-time curve and the standard value curve of the corresponding characterization parameter are within Within the suitable range, it is judged to be normal and will continue to work normally