Coal flotation process automatic control system and method

Abstract

The invention relates to a coal flotation process automatic control system and method. The coal flotation process automatic control system comprises a flotation machine, an ore slurry pre-treatment machine, a colloidal mill, a collecting agent storage tank, a frothing agent storage tank, detection equipment and executing equipment, wherein the colloidal mill is connected with each of the flotation machine and the ore slurry pre-treatment machine; the frothing agent storage tank is connected with each of the flotation machine and the ore slurry pre-treatment machine; the detection equipment connected with the executing equipment is arranged in the flotation machine. According to the coal flotation process automatic control system and method, a video camera is utilized to perform real-time detection on flotation froth and floatation tailings subjected to pressure filtration, so that the image information of froth and tailings subjected to pressure filtration can be collected and uploaded to an industrial personal computer, and meanwhile real-time state feature parameter values of the froth and tailings images are extracted and compared with a given threshold value determined by an off-line standard experiment, so as to obtain the froth information of enrichment clean coal and the coal leakage quantity information of tailings; besides, the dosage, the clear water quantity and the air input are adjusted in real time through the industrial personal computer according to the froth information and the coal leakage quantity by adopting the control method, the flotation machine can maintain a better working state, and a stable product quality can be ensured.

Description

technical field [0001] The invention relates to an automatic control system and method, in particular to an automatic control system and method for the flotation coal preparation process suitable for separation of coal and mineral impurities. Background technique [0002] In the process of flotation coal preparation, there are many variable factors that need to be judged by the operator, and the experience of the operator has an important impact on ensuring the quality and yield of the final product. The automatic control of the flotation coal preparation process can overcome the shortcomings of manual operation, ensure that each process parameter is in the best state, increase production, save chemicals, and reduce labor intensity on the premise of ensuring the quality of clean coal. At present, the effect of coal slime flotation mainly depends on the operating experience and carefulness of the flotation operator. The realization of various economic indicators of flotation...

AI Technical Summary

Problems solved by technology

The realization of various economic indicators of flotation and the stability and adjustment of the production process require the operator to carry out regular and timely operations, such as the concentration of the flotation coal slurry, the addition of flotation agents, the amount of air inflation, etc. The control not only requires the operator to have extremely high professionalism and work experience, but also requires a lot of energy, which is labor-intensive.

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