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Method for researching sintering performance of iron ore by utilizing mini-sintering test

A technology of sintering test and sintering performance, which is applied in the field of testing

Inactive Publication Date: 2011-10-12
HBIS COMPANY LIMITED HANDAN BRANCH COMPANY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if the liquid phase fluidity of iron ore is too large, it will also have adverse effects

Method used

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  • Method for researching sintering performance of iron ore by utilizing mini-sintering test
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  • Method for researching sintering performance of iron ore by utilizing mini-sintering test

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Embodiment Construction

[0019] The method of the present invention is divided into five steps to complete, and the method of the present invention is described in detail in connection with the following embodiments and accompanying drawings:

[0020] a. Selection of test raw materials: Select the test iron ore according to the fluidity index of the iron ore liquid phase. The fluidity index of the liquid phase is combined with the ore types used in actual production to select the iron ore for the test according to the law of increasing fluidity index, and the conditions are as follows:

[0021] 1. N>L max -L min , where: N is the number of selected minerals; L max is the maximum liquidity index in the matched mineral; L min It is the minimum liquidity index in the matched ore.

[0022] 2. In L min and L max Within the scope, the liquidity index grades are divided according to equal intervals, and the interval is 0.5 to 1, and each liquidity index grade includes at least one mineral type.

[00...

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Abstract

The invention relates to a method for researching the sintering performance of iron ore by utilizing a mini-sintering test, which belongs to the technical field of a physical and chemical detection. The method provided by the invention is used for disclosing the law of the influence of a liquid phase fluidity index of the iron ore on a sintering ore strength index. The method provided by the invention is carried out according to the following steps: selecting tested iron ore according to the liquid phase fluidity index of iron ore; drying and pelletizing the selected iron ore, coke powder and quicklime; adding quicklime or mixed lime to the prepared material particles to obtain evenly mixed material according to the required alkalinity and carbon proportion and carrying out the mini-sintering test in a mini-sintering device; carrying out the strength measurement on the sintering ore with different size fractions in an strength testing device; and summarizing the law of the influence of the liquid phase fluidity index on the sintering ore strength index according to the test data. According to the method provided by the invention, the law of influence of the liquid phase fluidity index of the iron ore on the sintering ore strength index can be reflected conveniently and quantitatively through the test result and the optimized sintering ore proportioning scheme can be provided timely according to the quality requirements of the sintering ore. In the invention, the test method is simple; the parameter adjustment in the test process is flexible; and the repeatability is good.

Description

technical field [0001] The invention relates to a test method, in particular to a method for studying the sintering performance of iron ore by means of a micro sintering test, which belongs to the technical field of physical and chemical analysis. Background technique [0002] With the rapid development of the iron and steel industry, the demand for iron ore resources necessary for iron and steel smelting is increasing day by day, and the types of iron ore are also increasing. In order to obtain cost-effective iron ore resources and produce qualified sintered ore, the evaluation of iron ore performance has always been a concern in the production of iron and steel enterprises. In recent years, the basic performance of iron ore as an index reflecting the differences in the properties of different iron ores has aroused great interest in the industry. The various indicators in the basic performance of iron ore can reflect the high temperature behavior and The law of its respons...

Claims

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Application Information

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IPC IPC(8): G01N3/00G01N31/00
Inventor 李贵阳彭兆丰刘晓明张艳允
Owner HBIS COMPANY LIMITED HANDAN BRANCH COMPANY
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