High temperature slag online visual monitoring system and method

Abstract

The invention relates to a high-temperature slag online visual monitoring system and method. Including: the high-temperature endoscope is inserted into the gasifier, and the high-temperature slag is imaged on the imaging surface of the industrial camera; the industrial camera collects the flow image of the slag in the molten state of the inner wall of the gasifier online and transmits it to the industrial computer; The slag liquid viscosity measurement program in the industrial computer performs online monitoring of the velocity field and viscosity through three steps of image acquisition, calculation of the velocity field, and estimated viscosity; the user interacts with the program through the graphical user interface; the monitoring results are output to the gasifier control equipment . The present invention converts the estimation problem of the high-temperature slag motion field into the estimation problem of the continuous video optical flow field, realizes the online estimation of the high-temperature slag flow velocity, thereby monitors the fluidity of the high-temperature slag in real time, and provides a solid foundation for the liquid slag discharge process of the gasifier Provide evidence to ensure the normal operation of the gasifier.

Description

technical field [0001] The invention belongs to the field of machine vision, and specifically relates to an online visual detection system and method for high-temperature molten slag. Background technique [0002] my country is one of the few countries in the world that uses coal as the main energy source, and is the largest producer and consumer of coal in the world. Coal gasification is an important technology to realize clean and efficient coal conversion, and it is also the key technology and leading technology of modern coal chemical industry. In actual operation, the fluidity of slag is the most important parameter to ensure liquid slag discharge and stable operation of the gasifier. Therefore, timely and accurate acquisition of the real fluidity of slag under the operating conditions of the gasifier is of great significance to the long-term stable operation of the gasifier. [0003] According to the "Measurement Method of Coal Ash Viscosity" (GB / T 31424-2015), the e...

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Problems solved by technology

[0003] According to the "Measurement Method of Coal Ash Viscosity" (GB / T 31424-2015), the existing measurement technology is to use a high-temperature rotational viscometer to use the viscosity measured off-line as a parameter to describe the fluidity of slag, but it is impossible to observe the gas in real time. Fluidity of High Temperature Slag in Furnace

The on-line detection of slag velocity field and viscosity under high-temperature gasification conditions is still a blank at home and abroad, which makes it impossible to obtain the slag fluidity in gasification operation in real time when the gasifier is running, which has great impact on the long-term stable operation of the gasifier. have adverse effects

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