Method for detecting state of coal charging hole cover of coke oven

Abstract

The invention provides a method for detecting the state of a coal charging hole cover of a coke oven. The method comprises the following steps: installing a temperature detection device at a positionwhere the coal charging hole cover can be scanned, wherein the position is far away from the coal charging hole cover; detecting to obtain the temperature of the coal charging hole cover; monitoring the whole coal charging process of the coke oven; monitoring the damage conditions of the coal charging hole cover of the coke oven. The method fully combines the characteristics of production of the coke oven, the operation characteristics of a coal charging car and an automatic detection technology, can be used for rapidly and effectively detecting the opening and closing of the coal charging hole cover, and realizes the reliable and safe interlocking with a coal charging operation; a detection and judgment unit is far away from a high temperature area; the method is a most direct and reliable detection technology for detecting the opening and closing states of the coal charging hole cover. After the method is adopted, the working state of the coal charging hole cover can be monitored inreal time, so that problems can be found at the first time, and coal charging hole cover explosion and irreversible damage to an oven body of the coke oven are further avoided; therefore, the method is an important support technological means for 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 coal charging 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 coal charging hole cover is used on the coal charging hole on the top of the coking furnace. The coal charging hole cover is opened when the coal charging car feeds into the furnace, and the coal charging hole cover is pressed on the coal charging hole as a sealing cover in the rest of the time. [0003] With the intensification of market competition and the increase of labor costs, the unmanned...

AI Technical Summary

Problems solved by technology

[0004] In addition, the existing coal filling hole cover structure for coke oven is a simple cover seat structure, which is composed of two parts: the coal filling hole cover and the coal filling hole seat. Since the coal filling hole cover has been working in a high temperature environment for a long time, it is easy to be damaged. After a period of time, it is easy to cause temperature and energy loss, and it is easy to cause the leakage of sulfur dioxide and other polluting gases, causing environmental pollution; in addition, it may also be accompanied by open flames emerging from the furnace, which is dangerous to the personal and health safety of workers.

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