Method for detecting carbon content in large face repairing material

Abstract

The invention relates to the technical field of carbon content detection and discloses a method for detecting carbon content in a large face repairing material. The method comprises the following steps of: pre-processing a detected sample: weighing 1-2g of the sample, tiling the sample to the bottom of a double-cover crucible which is burned to a constant weight, closing the double lid, putting ina muffle furnace which is already preheated to about 920 DEG C, starting a stopwatch to start timing at the same time, quickly closing a furnace door, controlling the temperature at 900 DEG C for 7 minutes, immediately taking out from the furnace, cooling in air for about 5 minutes, transferring to a drying tower, cooling to room temperature and weighing, wherein the volatile content is obtainedby subtracting the value weighed after cooling from the initially-weighted value; and preparing before the detection, wherein a previously-processed homogenized residue serves as the sample of the detection and the crucible adopts an infrared carbon sulfur special crucible which is burned at a high temperature. The method has the beneficial effects that the carbon content in the large face repairing material can be effectively detected; and detection results are accurate and convincing.

Description

technical field [0001] The invention relates to the technical field of carbon content detection, in particular to a method for detecting carbon content in large surface repair materials. Background technique [0002] Vanadium extraction refers to the process of oxidizing vanadium in molten iron containing vanadium into vanadium slag before steelmaking. It is an important method widely used in many vanadium extraction processes in molten iron. The so-called converter is a kind of steelmaking furnace. It generally refers to a cylindrical oxygen-blowing steelmaking vessel that can be tilted. It includes a furnace cap, a small surface and a large surface. When the large surface is damaged, the large surface repair material is often used. Make tinkering. [0003] Large surface repair materials have the characteristics of high bonding strength, high volume density, high strength, good slag resistance and strong resistance to rapid cooling and rapid heat with the original brick vi...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a method for detecting the carbon content in the large surface repair material, which has the advantages of being able to detect the carbon content in the large surface repair material, and solves the problem that the large surface repair material is mainly made of magnesium or magnesium altar. It is made of high-quality materials, and the carbon content will affect the quality of the repair material. At present, there is no good way to detect the carbon content in the large surface repair material.