Method for detecting state of observation hole cover of coke oven

Abstract

The invention provides a method for detecting state of an observation hole cover of a coke oven. The method comprises the following steps: mounting a temperature detection device on a part which is capable of scanning the observation hole cover and is away from the observation hole cover, and then detecting the temperature of the observation hole cover; detecting the opening / closing state of the observation hole cover; detecting the damaged condition of the observation hole cover; utilizing the temperature detection device to detect the temperature of the observation hole cover in real time and transmitting the detected data to a control device in the running process of the coke oven. The method fully combines the production characteristics of the coke oven, the operation characteristics of a coal car and an automatic detection technology for quickly detecting the opening / closing state of the observation hole cover, realizing the reliable and safe interlocking of the coal loading operation, detecting and judging if the unit is away from the high temperature area; the method is the most direct and most reliable detection technology for the opening / closing state of the observation hole cover; the method is capable of monitoring the working state of the observation hole cover in real time, finding the problem in time and preventing the observation hole cover from exploding and thecoke oven body from irreversible damage; the method is an important supporting technology for the coke oven safety production.

Description

technical field [0001] The invention belongs to coke oven automation technology, in particular to a method for detecting the state of a coke oven fire hole cover. Background technique [0002] The main function of the metallurgical coke oven is to refine coke for use in blast furnace ironmaking. The principle is to heat the bituminous coal to 950°C to 1050°C in an air-isolated environment, and after drying, pyrolysis, melting, bonding, solidification, shrinkage and other stages, the coal produces a series of physical and chemical changes, and the solid residue is coke. The fire hole cover is used on the fire hole on the top of the coking furnace. [0003] With the intensification of market competition and the increase of labor costs, the unmanned operation of coke oven coke pushing has become the main direction of the current coking industry. Among them, it is most difficult to realize unmanned coal loading vehicles. In addition, the coal loading operation is directly rel...

AI Technical Summary

Problems solved by technology

[0004] Existing coke ovens have a simple structure and are generally made of ordinary cast iron. Since the sighting hole cover is usually directly in the harsh working conditions of long-term high-temperature baking of the coke oven, the coke oven made of cast iron The hole cover is very easy to be damaged. At the same time, the thermal conductivity of the ordinary cast iron fire hole cover is relatively large, and a large amount of heat in the carbonization chamber is dissipated to the surface environment of the coke oven roof, which not only causes temperature and energy loss, but also deteriorates the working environment of the coke oven roof. , there is a certain danger to the personal and health safety of workers

However, at present, the quality of the fire hole cover is still manually inspected.

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