Flotation process fuzzy control method based on foam flow velocity

A technology of fuzzy control and flotation process, applied in flotation, solid separation and other directions, can solve the problems of complex and changeable flotation process and changes in control indicators, so as to overcome subjective uncertainty, enhance robustness, improve The effect of economic and technical indicators

Pending Publication Date: 2022-06-24
云南华迅达智能科技有限公司
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  • Application Information

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Problems solved by technology

However, due to the complex and changeable flotation process, the control index often changes, so it is necessary to calibrate the fuzzy controller

Method used

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  • Flotation process fuzzy control method based on foam flow velocity
  • Flotation process fuzzy control method based on foam flow velocity
  • Flotation process fuzzy control method based on foam flow velocity

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Embodiment 1

[0045] see figure 1 , figure 2 , this embodiment discloses a flotation process fuzzy control method based on froth flow rate, including:

[0046] Set the flow rate setting value according to the flotation conditions;

[0047] Detect the foam flow rate to obtain the flow rate detection value, and calculate the flow rate variation trend;

[0048] Judging whether the current working condition is normal, if the current working condition is abnormal, the flow rate control will not be carried out, and if the current working condition is normal, the flow velocity control will be carried out;

[0049] The flow rate control includes: adjusting the parameters of the fuzzy controller with the flow velocity set value, the flow velocity detection value and the flow velocity change trend as the input of the fuzzy controller, calculating the air pressure setting value and the foam layer thickness setting value through the fuzzy control method, and according to the calculation results Adj...

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Abstract

The invention relates to the field of froth flotation automation, and discloses a flotation process fuzzy control method based on froth flow velocity. The method comprises the following steps: firstly, detecting flotation froth flow velocity by adopting an image processing method, respectively calculating set values of inflation pressure and froth layer thickness in the flotation process by adopting a fuzzy control method in combination with a flow velocity set value, and sending the set values to a PID controller; in order to enhance the adaptive capability of a fuzzy controller and meet the control requirements under various flow rate set values, a multi-input multi-output fuzzy control method for adaptive parameters according to the flow rate set values is provided, so that the foam flow rate tracking set value is better realized. According to the method, subjective uncertainty of manual adjustment of air pressure and foam layer thickness is overcome, the purpose of tracking the flow rate set value by the actual flow rate of foam is achieved, conditions are provided for subsequent grade and recovery rate regulation and control, and economic and technical indexes of the flotation process are improved.

Description

technical field [0001] The invention relates to the field of froth flotation automation, in particular to a flotation process fuzzy control method based on froth flow rate. Background technique [0002] Mineral resources play an important role in the development of the national economy. More than 95% of energy and 85% of industrial raw materials in my country are derived from mineral resources. Most of the natural mineral resources need to be separated before they can be used. Since mineral resources are non-renewable natural resources, with the increasing consumption of high-grade mineral resources, in order to make full use of limited mineral resources and protect the ecological environment on which human beings live, people pay more and more attention to the sorting level of minerals. [0003] Froth flotation is the only flotation method still in use today, and it is also the most important and widely used beneficiation method in mineral processing technology. The main ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03D1/02
CPCB03D1/028
Inventor 王晓丽杨洋朱雁兵卢明阳春华张浩蔡贵红桂卫华
Owner 云南华迅达智能科技有限公司
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