Material group distribution detection and regulation system and method in variable-ellipse equal-thickness screening process

Abstract

The invention discloses a material group distribution detection and regulation system and method in the variable-ellipse equal-thickness screening process. The system comprises a variable-ellipse equal-thickness screen, a screen surface vibration testing and analyzing device, a material group high-speed camera shooting testing and analyzing device and an excitation regulation device, wherein the screen surface vibration testing and analyzing device detects the movement tracks of different areas of the screen surface of the variable-ellipse equal-thickness screen in real time; the material group high-speed camera shooting testing and analyzing device detects the movement speed and spatial distribution of a material group in real time; and the excitation regulation device regulates the excitation parameters of an unbalanced exciter. According to the material group distribution detection and regulation system and method in the variable-ellipse equal-thickness screening process, for different screening operation conditions, the parameters of the unbalanced exciter are regulated through the excitation regulation device according to the real-time online detection results of the screen surface vibration testing and analyzing device and the material group high-speed camera shooting testing and analyzing device so as to change the movement tracks of different areas of the screen surface, then the movement speed and spatial distribution of the material group in the screening process of the variable-ellipse equal-thickness screen are regulated, and variable-ellipse equal-thickness efficient screening of materials under different conditions is achieved.

Description

technical field [0001] The invention relates to a system and method for detecting and controlling the distribution of material groups in a variable ellipse and equal thickness screening process, belonging to the technical field of screening. Background technique [0002] Screening refers to the process of dividing mixed materials with different particle sizes into several different particle size grades through single-layer or multi-layer screen surfaces. It is widely used in mineral classification, pre-deliming, product dehydration and de-intermediation operations. Single inclination equal-amplitude vibrating screen, the amplitude and vibration intensity from the feed end to the discharge end are the same, the material at the feed end is easy to accumulate, the thickness of the material layer on the screen is large, the material layering is slow, and the material layer at the discharge end becomes thinner rapidly. The sieving time of difficult-to-sieve particles is short, th...

AI Technical Summary

Problems solved by technology

In the actual production process, under different working conditions, the spatial distribution of the material group changes dynamically, and the excitation parameters required to achieve the best screening effect are different; the traditional method and system have not realized the movement trajectory of the screen surface during the screening process. , Real-time online monitoring of the spatial distribution of the material group; and the real-time regulation of the excitation parameters cannot be realized, and it is difficult to realize the equal thickness and high-efficiency screening of the material group under different working condition parameters

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