Molten steel sampling instrument and using method thereof

Abstract

The invention provides a molten steel sampling instrument and a using method thereof. A lifting platform of the sampling instrument is located in a foundation pit in the lateral ground of a steel ladle, a mechanical arm is mounted on the lifting platform through a rotary table, and a steel liquid sampling device and a steel slag sampling box are connected with the mechanical arm through a samplingadapter rod. The using method comprises the steps that the mechanical arm is raised above the ground and unfolded; the sampling adapter rod is installed; the steel liquid sampling device and the steel slag sampling box are installed; a horizontal rotary mechanical arm makes the steel liquid sampling device and the steel slag sampling box located directly above a steel liquid sampling position; the small arm of the mechanical arm is retracted, the big arm of the mechanical arm is horizontal, and the distance between the steel liquid sampling device and the liquid surface of molten steel is measured; the small arm of the mechanical arm stretches downward, so that the steel liquid sampling device stretches into the molten steel to the sampling position to complete steel sampling; the steel slag sampling box moves downward, so that the box cover sinks into a steel slag layer to complete slag sampling; the small arm of the mechanical arm is retracted, so that the steel liquid sampling device and the steel slag sampling box are separated from the liquid surface of molten steel; a steel sample and a slag sample are inspected; the sampling adapter rod is detached, the mechanical arm is folded and lowered into the foundation pit in the ground, and the foundation pit is closed by a cover plate.

Description

technical field [0001] The invention belongs to the technical field of iron and steel smelting, and in particular relates to a liquid steel sampling instrument and a using method thereof. Background technique [0002] In the process of iron and steel smelting, the analysis of the composition of steel samples and slag samples is one of the important means to guide the operator to operate accurately, and on the basis of ensuring the quality of sampling, how to complete sampling quickly and safely is to determine the smelting cycle key factor. [0003] At present, in iron and steel enterprises, the sampling process of steel sample and slag sample is carried out separately. When taking a steel sample, the furnace front worker usually holds a long iron rod with a sampler inserted into the end of the long iron rod, and inserts the sampler into the molten steel for direct sampling. When taking a slag sample, the end of the long iron rod is directly inserted into the slag layer, a...

AI Technical Summary

Problems solved by technology

[0017] Aiming at the problems existing in the prior art, the present invention provides a molten steel sampler and its usage method, which adopts the mechanical arm operation mode to replace the traditional manual operation mode, effectively reduces the danger of manual operation mode, and effectively improves the sampling efficiency and sampling success It can meet the sampling requirements of different positions in the ladle; the sampler can be folded into the ground as a whole, does not take up extra space, and does not affect the work of workers; the sampler is equipped with a clamp mechanism, which can effectively avoid the problem of the sampler falling off; the new design of the sampler It can effectively avoid the mixing of steel slag and ensure the purity of steel samples; it is equipped with an adjustable steel slag sampling box, which can accurately complete the sampling of slag samples and meet the simultaneous sampling requirements of steel samples and slag samples

Images