Coal flotation process automatic control system and method

An automatic control system, coal preparation technology, applied in flotation, solid separation and other directions, can solve problems such as high labor intensity

Active Publication Date: 2017-06-30
CHINA UNIV OF MINING & TECH
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  • Summary
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  • Description
  • Claims
  • Application Information

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 slur

Method used

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  • Coal flotation process automatic control system and method
  • Coal flotation process automatic control system and method

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Embodiment 1: The flotation equipment is started to work, the selected coal slurry valve 16 on the selected coal slurry pipeline is opened, the input selected coal slurry enters the slurry preprocessor 13, and the collector storage tank 11 transports the collector into the colloid mill 12, pre-processed The treatment foaming agent dosing valve 18 and the pretreatment collector dosing valve 19 are manually determined and kept constant according to the concentration of the selected coal slurry. The foaming agent and the emulsified collector are mixed with the selected coal slurry evenly. Generate the floating coal slurry, the pulp preprocessor 13 transports the floating coal slurry into the flotation machine 14, and the flotation machine 14 starts the flotation operation. The flotation foam 4 enriched in clean coal is produced in the flotation chamber, and the flotation tailings 8 are sent to press filtration; the first camera 1 takes images of the flotation foam 4 enriche...

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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...

Claims

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Application Information

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IPC IPC(8): B03D1/02B03D1/001B03D1/14
CPCB03D1/001B03D1/028B03D1/14
Inventor 窦东阳张勇王艳飞
Owner CHINA UNIV OF MINING & TECH
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