A detection method of nucleation performance
A detection method and nucleation technology, which is applied in the field of metallurgical sintering technology, can solve problems such as the inability to determine the nucleation properties of nucleation particles
Inactive Publication Date: 2017-08-11
武汉钢铁有限公司
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[0005] The present invention solves the technical problem that the nucleation performance of nucleation particles cannot be determined in the prior art by providing a detection method for nucleation performance
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[0027] In order to solve the technical problem that the nucleation performance of the nucleation particles cannot be determined in the prior art, the present invention provides a detection method for the nucleation performance, by mixing the nucleation particles to be detected with the adhesion particles to obtain the first mixture, And the first mixture is granulated to obtain the first quasi-particles, according to the weight value of the particles whose particle size value is greater than the upper limit of the first particle size range in the first quasi-granules, and the weight value of the nucleated particles to be detected, it can be determined that the Detect the nucleation performance of the nucleation particles. After determining the nucleation performance of the nucleation particles, use the nucleation particles with high nucleation performance to produce high-quality quasi-particles, so that the sintering has good air permeability.
[0028] In order to make the purp...
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Abstract
The invention refers to the technical field of a metallurgy sintering technique. The invention provides a method for detecting nucleation performance. The method aims to solve the technical problem that the nucleation performance of a nucleation particle cannot be determined in the prior art. The method for detecting nucleation performance comprises the following steps: mixing the nucleation particle to be detected and an adhered particle and obtaining a first mixture, wherein the nucleation particle to be detected is possessed of a first weight value and a first particle size range; pelletizing the first mixture and obtaining a first quasi-particle, wherein the first quasi-particle includes the adhered particle which is not adhered by the nucleation particle to be detected; screening the first quasi-particle and obtaining a first reference particle, wherein the particle size value of the first reference particle is more than the upper limit of the first particle size range; obtaining the weight value of the first reference particle as the second weight value; based on the first weight value and the second weight value, determining the nucleation performance of the nucleation particle to be detected. Through determining the nucleation performance of the nucleation particle to be detected, the nucleation particle with high nucleation performance can produce the high-quality quasi-particle; and thereby good breathability is provided during the sintering.
Description
technical field [0001] The invention relates to the technical field of metallurgical sintering technology, in particular to a method for detecting nucleation performance. Background technique [0002] In order to make the sintering reaction proceed uniformly and fully, the mixing and granulation of the mixture before sintering are very important. During the granulation process of the mixture, the fine powder particles adhere to the nucleation particles, or gather together to form the so-called quasi-particles, so that the sintered material has good air permeability, and at the same time, the calcium oxide that adheres to the powder layer can The concentration is higher, so as to form the ideal calcium oxide concentration distribution and higher alkalinity. [0003] The behavior of materials of different particle sizes in the granulation process can be divided into three types, one is nucleation particles, one is adhesion particles, and the other is intermediate particles. ...
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IPC IPC(8): B22F3/10
Inventor 王素平李军史先菊余珊珊
Owner 武汉钢铁有限公司