Method for detecting mixing uniformity of powdery material
A material mixing and detection method technology, applied in the direction of measuring devices, material capacitance, analysis materials, etc., to achieve the effects of simple operation, improved detection efficiency, and guaranteed detection accuracy
Active Publication Date: 2020-08-04
郑州星驰智能科技有限公司
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[0003] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide a method for detecting the mixing uniformity of powdery materials, which can effectively solve the problem of analyzing the mixing uniformity of powdery materials and improve the detection accuracy of powdery material mixing uniformity. and efficiency issues
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[0022] The specific implementation of the present invention will be described in detail below in combination with specific situations.
[0023] A method for detecting the mixing uniformity of powdery materials in the present invention, first install the equipment, and then proceed according to the following steps:
[0024] 1. Fill the measured powder mixture into the plate capacitor C 1 、C 2 、C 3 、C 4 In , the plate area of each plate capacitor is S, and the initial plate spacing is a constant value H;
[0025] 2. Input the composition and ratio of the tested mixed material through the touch screen, and use the microprocessor to calculate the theoretical value of the dielectric constant ε of the tested powdered mixture after theoretical mixing. 0 ;
[0026] 3. The microprocessor sends instructions to each controllable and adjustable pressure cylinder, the controllable and adjustable pressure cylinder drives the upper plate of each flat capacitor to move downward, and th...
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The invention relates to a method for detecting mixing uniformity of a powdery material, which effectively solves problems of analyzing the mixing uniformity of the powdery material and improving detection precision and efficiency. The method comprises the following steps of filling the detected powdery mixed material into plate capacitors, and calculating a theoretical dielectric constant value of the mixed material; compressing the mixed material, calculating a distance between upper and lower polar plates of the plate capacitors, and outputting a sinusoidal signal according to components and a proportion of the measured mixed material; collecting the sinusoidal signal by a shift circuit, and analyzing the reference signal and the shifted signal to obtain a phase difference between the shift signal and a standard reference signal; averaging the dielectric constants of each group of plate capacitors to obtain an average value of the dielectric constants and a variance of the dielectric constants of the measured material; and when the variance and the theoretically calculated absolute value of the dielectric constant of the measured material are within a preset threshold value, considering that the measured material is uniformly mixed. Equipment is easy to install, the method is simple to operate, detection precision is ensured, and detection efficiency is greatly improved.
Description
technical field [0001] The invention relates to material detection, in particular to a detection method for mixing uniformity of powdery materials. Background technique [0002] The mixing of powdery materials is a complex stochastic process, and the evaluation and measurement methods of mixing quality have always been a thorny problem that plagues people. With the development of the times and the advancement of science and technology, the method of judging the uniformity of mixing by human five senses has fallen behind. Judging the mixing uniformity in a scientific and quantitative form is the quantitative analysis of powder mixing. To achieve quantitative analysis, there must be several processes of sampling, testing, and statistical analysis (data processing), so as to obtain a single value to express the uniformity of the mixture. At present, the methods of mixing uniformity include tracer method, chemical analysis method, digital image analysis method, near-infrared s...
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IPC IPC(8): G01N27/22
CPCG01N27/221
Inventor 桑小田陈仲库孔凡连董雪峰
Owner 郑州星驰智能科技有限公司