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Fuzzy control coal dressing method

A technology of fuzzy control and coal preparation, applied in the direction of adaptive control, general control system, non-electric variable control, etc., can solve problems such as wrong conclusions, mathematical models matching, and inability to obtain accurate mathematical models

Inactive Publication Date: 2017-02-15
QUFU NORMAL UNIV
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Problems solved by technology

However, when a high-order system is simplified to a low-order mathematical model to describe the system, the result is often unsatisfactory, and even leads to wrong conclusions.
[0009] 3. Due to the time-varying and complex nature of the process control system, the established mathematical model cannot be completely consistent with the actual system, so an accurate mathematical model cannot be obtained, but only an approximation

Method used

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Embodiment Construction

[0028] refer to Figure 1 to Figure 7 The embodiments of the present invention will be further described.

[0029] Taking the relationship between coal washing equipment and the process parameters that affect the quality and efficiency of coal washing as the research object, a set of dense medium coal washing centralized monitoring and process parameter automatic measurement and control system is designed by combining the relatively mature technology of PID controller and fuzzy control theory. On-line detection, monitoring and stable control of process parameters in the process of dense medium coal washing, to solve the current situation of difficult adjustment of system response speed and overshoot due to large lag and large inertia links in the current heavy medium suspension and liquid level control system , so as to optimize the coal washing process, improve labor productivity, reduce labor intensity of workers, and improve economic benefits.

[0030] The system adopts ad...

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Abstract

The present invention discloses a PID fuzzy control combined control system which solves the problems that the control power of the density of an original dense medium suspension to the clean coal ash content values is not very strong, and the influence of the liquid level of a qualified medium barrel on the ash content values is not embodied at all. According to the present invention, by adopting an advanced controller, the correlation between the density of the dense medium suspension and the clean coal ash content values is enhanced obviously, the control power of the density to the ash content is enhanced. Meanwhile, the influence of the liquid level of the qualified medium barrel on the clean coal ash content values is also embodied. Under the joint action of the two, the quality of a clean coal product is improved greatly, and the production efficiency of the system is improved substantially.

Description

technical field [0001] The invention relates to a fuzzy control coal preparation method. Background technique [0002] The development and application of comprehensive automation systems is a prominent feature of domestic modern large-scale coal washing plants in recent years. The comprehensive system with industrial computer and programmable controller as the hardware core and computer information management, optimization and control as the software core has become the comprehensive information system of coal washing plants. typical model of The comprehensive information system covers monitoring, protection and alarming of equipment and production process, detection and adjustment of production process parameters, centralized control of production equipment, computer information management and optimization of coal washing plant, etc. [0003] The separation process of the dense medium cyclone is: the suspension is fed into the cyclone along the tangential direction at a ce...

Claims

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Application Information

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IPC IPC(8): G05B13/04G05D27/02
Inventor 张立华武玉强李坤王化建张文仲卢立晖刘鹤李文铅辛生
Owner QUFU NORMAL UNIV
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