Blade abrasion evaluation method of KR desulfuration paddle agitator

Abstract

The invention relates to a blade abrasion evaluation method of a KR desulfuration paddle agitator. According to the technical scheme, blade abrasion evaluation positions are set in advance, the initial standard outline and the usage limit outline of each blade (4) of an unused KR desulfuration paddle agitator (2) in the corresponding blade abrasion evaluation position are determined respectively, and then the abrasion replacement value W1 and the abrasion repair value W2 of each blade (4) of the KR desulfuration paddle agitator (2) in the using process are determined; then, a series of images of the blades (4) in the rotating process of the KR desulfuration paddle agitator (2) are acquired through a first industrial camera (1) and a second industrial camera (2), the abrasion virtual outline of each blade (4) is calculated according to the series of images to be compared with the corresponding initial standard outline and the corresponding usage limit outline, and the comprehensive abrasion evaluation rate R of each blade (4) is obtained; finally, the abrasion evaluation result is given according to the comprehensive abrasion evaluation rate R, and the abrasion replacement value W1 and the abrasion repair value W2 of each blade (4). The blade abrasion evaluation method of the KR desulfuration paddle agitator has the advantages of being easy to operate, accurate in evaluation and capable of quantizing abrasion.

Description

technical field [0001] The invention belongs to the technical field of digital image processing. In particular, it relates to a blade wear evaluation method of a paddle stirrer for KR desulfurization. Background technique [0002] In the KR desulfurization operation, the molten iron in the molten iron tank is mixed with the desulfurizer under the action of the agitator and undergoes a chemical reaction, and the sulfur element in the molten iron is combined into the scum and finally removed. The speed of the agitator and the shape of the agitator blade affect The kinetic conditions of the reaction between molten iron and desulfurizer ultimately affect the desulfurization effect, so it is very important to evaluate the wear of the agitator blades. At present, there are mainly the following methods to evaluate the wear condition of agitator blades: [0003] 1. Visual inspection, the operator observes the shape of the agitator blade with the naked eye, judges the wear conditio...

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Problems solved by technology

[0003] 1. Visual inspection, the operator observes the shape of the agitator blade with the naked eye, judges the wear condition, and decides whether to repair or replace the agitator based on experience; because workers need to visually evaluate the wear condition, and need to rely on subjective experience to decide whether to repair or replace the agitator The repair or replacement of the agitator brings a lot of randomness, which is not conducive to the stable and orderly desulfurization operation.

[0004] 2. When the agitator is used many times, if the rotation speed is already high during the desulfurization stirring process, but the molten iron splashes little and the vortex is shallow, the operator generally judges that the agitator needs to be replaced based on experience; this method has no quantitative judgment, As a result, the replacement of the agitator may be advanced and increase the production cost, or it may be delayed and cause the desulfurization effect to be unstable

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