Device and method for detecting iron ore raw material

Abstract

The invention discloses a device and a method for detecting an iron ore raw material. The detection device replaces a suspending detection device in the prior art and comprises a vertical electrothermal furnace system, a mechanical lifting system, an electronic balance, a lifting vertical pipe system, a computer control system and a gas supply system, wherein a weighing balance is placed at the bottom of the furnace body; and the balance supports an iron ore reducing test sample through a lifting vertical pipe, measures the mass of the test sample in real time and calculates the reducing degree of the test sample according to the mass loss after reduction of the test sample and the oxygen content before reduction. The detection device for detecting according to the detection method provided by the invention has the characteristics of simple structure, low work environment temperature of the balance, high detection precision, convenience in operation and the like.

Description

technical field [0001] The invention relates to the field of detection of metallurgical properties of iron-containing materials. More specifically, it relates to a detection device and method for detection of iron ore raw materials. Background technique [0002] In order to truly realize the efficient and clean utilization of metallurgical resources, it is first necessary to fully grasp the metallurgical properties of the iron-containing materials in the furnace. Among them, the reducibility and free reduction expansion are important physical property indicators of the iron-containing materials. Accurate measurement of the above two indicators is conducive to formulating Reasonable ironmaking process. [0003] At present, there are two ways to detect the reducibility of iron ore: one is the hanging basket type, that is, the sample is put into a mesh hanging basket woven by high-temperature-resistant iron-chromium-aluminum wire, and then vertically hung in the upper part of ...

AI Technical Summary

Problems solved by technology

However, due to the long hanging tube, it is difficult to ensure that the hanging tube does not touch the furnace tube or heating parts when the hanging type is used. Once there is contact, the balance cannot accurately measure the accurate weight loss of the material, resulting in poor operational stability.

In addition, the gas in this method will contact the sample without sufficient preheating and uniform flow in the hanging tube, which will also have a great impact on the reduction process of the material.

[0005] More importantly, because the above two methods are suspended, the balance is located on the upper part of the furnace body. The temperature of the weighing balance is as high as 100 degrees, causing the gravity sensor of the balance to fail, unable to achieve accurate measurement and even causing the balance to be damaged

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