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Method for detecting reaction performance of furnace slag

A technology of reaction performance and slag, which is applied in the field of metallurgy, can solve the problems of large influence of subjective factors and inaccurate detection results, and achieve the effects of easy operation, simplicity, accuracy and detection efficiency

Active Publication Date: 2019-01-11
马鞍山赤源冶金科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] The purpose of the present invention is to overcome the shortcomings of the prior art that the subjective factors have a great influence on the detection of calcium oxide and slag reaction performance and the inaccurate detection results. , to detect the time required for the slag to dissolve a certain thickness of calcium oxide, and judge the reaction to reach the set position through the change of the physical signal, which can improve the accuracy and detection efficiency of the detection of the reaction ability of calcium oxide dissolved in the slag

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  • Method for detecting reaction performance of furnace slag
  • Method for detecting reaction performance of furnace slag
  • Method for detecting reaction performance of furnace slag

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Embodiment 1

[0049] Such as Figure 1-Figure 4 As shown, a method for detecting the reaction performance of slag in this embodiment adopts a special detection system for the reaction performance of slag, and proceeds according to the following steps:

[0050] S1. Slag system configuration: the slag system is configured with pure chemical reagents CaO and SiO 2 , 3CaO·P 2 o 5 , FeC 2 o 4 as raw material;

[0051] S2, slag system heating treatment: Weigh the quantitatively prepared slag and put it into the heating furnace to heat, so that the slag sample is evenly melted; specifically, weigh the quantitative slag (such as 200g) and put it into the heating furnace, and the furnace temperature is set at 1200- 1400°C, the heating process is three-stage heating, firstly keep warm for 30-40min under the temperature conditions of 300-400°C and 700-800°C, respectively, to prevent the slag sample from being heated unevenly during the melting process of the slag sample due to excessive heating, ...

Embodiment 2

[0067] A method for detecting the reactivity of slag in this embodiment is basically the same as in Embodiment 1, except that it is different in the following steps:

[0068] S2. Slag system heating treatment: Weigh quantitative slag and put it into the heating furnace. The furnace temperature is set at 1400°C. The heating process is three-stage heating. First, keep the temperature at 300°C and 700°C for 30 minutes respectively, and wait for the temperature to rise. At 1400°C, keep warm for another 30 minutes to ensure sufficient reaction between the compounds and then carry out the detection operation;

[0069] S3. Grinding to prepare calcium oxide powder: crush and grind blocky calcium oxide into small particles of calcium oxide in a mortar, then use a 100-mesh round hole sieve to sieve, and put the sieved material into an agate mortar and continue fine grinding for 15 minutes Above, make it pass through a 200-mesh round hole sieve, and use it now to prevent water absorption...

Embodiment 3

[0073] A method for detecting the reactivity of slag in this embodiment is basically the same as in Embodiment 1, except that it is different in the following steps:

[0074] S2. Slag system heating treatment: Weigh quantitative slag and put it into the heating furnace. The furnace temperature is set at 1200°C. The heating process is three-stage heating. First, keep the temperature at 400°C and 800°C for 40 minutes respectively, and wait for the temperature to rise. Keep warm for another 40 minutes at 1200°C;

[0075] S3. Grinding and preparing calcium oxide powder: crush and grind blocky calcium oxide into small particles of calcium oxide in a mortar, then use a 150-mesh round hole sieve to sieve, and put the sieved material into an agate mortar and continue fine grinding for 15 minutes Above, make it pass through a 250-mesh round hole sieve, and use it now to prevent water absorption and deterioration;

[0076] S4. Compressing calcium oxide tablets: under a pressure of 12 M...

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Abstract

The invention discloses a method for detecting the reaction performance of furnace slag and belongs to the field of metallurgy. The method adopts a system for detecting the reaction performance of thefurnace slag and is carried out according to the following steps: S1, preparing a slag system; S2, carrying out temperature-rising treatment on the slag system: weighing quantitative furnace slag andputting the furnace slag into a temperature-rising furnace; heating and melting; S3, grinding to prepare calcium oxide powder; S4, pressing calcium oxide sheets: pressing the calcium oxide powder into the calcium oxide sheets; and S5, adding the calcium oxide sheets and the furnace slag into a detection system and starting to detect. According to the method disclosed by the invention, the disadvantages in the prior art that subjective factor influences on the detection of the reaction performance of calcium oxide and the furnace slag are great and a detection result is not accurate are overcome; the furnace slag is injected into a calcium oxide groove to detect the time needed by dissolving the calcium oxide with a certain thickness through the furnace slag; and changes of a physical signal are used for judging whether reaction reaches a pre-set position, and the accuracy and detection efficiency of detecting the reaction capability of the calcium oxide dissolved in the furnace slag can be improved.

Description

technical field [0001] The invention relates to the technical field of metallurgy, in particular to a method for detecting the reaction performance of slag. Background technique [0002] The iron and steel industry is the main basic industry of the national economy. The converter steelmaking process is an indispensable and important part of the iron and steel process. While rapidly realizing the transformation from molten iron to molten steel, it also causes huge environmental pollution and waste of resources. In the whole long process of iron and steel, converter steelmaking generally adopts high-basicity dephosphorization, which requires the preparation of high-basic converter slag and the use of a large amount of alkaline raw materials such as lime, which not only increases the cost of steelmaking, but also generates a lot of waste. waste residue. In order to improve the dephosphorization efficiency of the converter, it is necessary to carry out the influence of various ...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N1/28
CPCG01N1/286G01N3/08
Inventor 张超
Owner 马鞍山赤源冶金科技有限公司
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