An intelligent control system and method for a dense medium separation process
An intelligent control system and sorting process technology, applied in chemical instruments and methods, solid separation, wet separation, etc., can solve the problem that the setting of sorting density relies heavily on experience, without comprehensive consideration of sorting density factors, product Quality control lags behind problems such as manual intervention in the control system, so as to reduce the dependence on experience and realize the effect of real-time control
Active Publication Date: 2021-10-22
CHINA UNIV OF MINING & TECH
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[0003] In view of the above analysis, the present invention aims to provide an intelligent control system and method for the dense medium sorting process, which is used to solve the problem that the existing sorting density setting relies heavily on experience, and does not comprehensively consider other factors affecting the sorting density, Product quality control lag, manual intervention control system problems
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Embodiment 2
[0074] In Embodiment 2 of the present invention, an intelligent control method for dense medium sorting process is disclosed, the flow chart is as follows image 3 shown, including the following steps:
[0075] Step S1: Real-time detection of raw coal ash content, clean coal ash content and circulating medium density value at the current moment, and fitting to obtain the selectability curve at the current moment;
[0076] Step S2: Obtain the theoretical sorting density at the current moment according to the measured value of the circulating medium density at the current moment, the ash content of the clean coal and the selectivity curve;
[0077] Step S3: According to the relationship curve between the theoretical sorting density and the circulating medium density, the set value of the circulating medium density at the current moment corresponding to the theoretical sorting density at the current moment is obtained;
[0078] Step S4: Adjust the density of the circulating medi...
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The invention relates to an intelligent control system and method for a dense medium sorting process, which belongs to the technical field of sorting and processing, and solves the problem that the existing sorting density setting relies heavily on experience and does not comprehensively consider other factors affecting the sorting density, product Quality control lags, problems with human intervention in control systems. The system includes: a first ash measurement device for measuring the ash content of raw coal; a second ash measurement device for real-time measurement of the ash content of clean coal obtained after the raw coal is sorted by circulating media; a production index prediction module for processing the raw coal The ash content and the ash content of the clean coal are used to obtain the set value of the density of the circulating medium; the density adjustment module of the circulating medium adjusts the density of the circulating medium based on the deviation between the set value of the density of the circulating medium and the measured value of the density of the circulating medium. The system effectively reduces the dependence of the sorting density setting process on experience, can make full use of historical data, and improves the timeliness of product quality control.
Description
technical field [0001] The invention relates to the technical field of sorting and processing, in particular to an intelligent control system and method for a dense medium sorting process. Background technique [0002] The dense medium coal preparation technology is an important separation technology in the coal preparation industry. It is widely used because of its good separation effect. The density of the dense medium determines the quality of the separation effect, so the separation of the dense medium can be controlled in real time. Density is essential. The density control method of the existing coal preparation plant is to manually set the circulating medium density value of the dense medium system (hereinafter referred to as the set density), and to use the PID algorithm to track the set density to carry out systematic density control; mainly there are the following defects: (1) The setting density is set by the operator, which largely depends on experience and is n...
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IPC IPC(8): B03B5/44
CPCB03B5/44
Inventor 匡亚莉王光辉王章国
Owner CHINA UNIV OF MINING & TECH