Coordination control method for buffer slot

Abstract

The invention relates to a coordination control method for a buffer slot. The method comprises the following steps of: 1) setting a coordination control system; 2) performing initialized setting on an industrial control computer; 3) starting a drive motor and a centrifugal pump, inputting the slurry through an inlet pipeline and outputting the slurry through an outlet pipeline continuously by thebuffer slot; 4) acquiring the detection values of liquid level detection equipment and rotation speed detection equipment at intervals of sampling period and transmitting the acquired liquid level detection value h and the corresponding centrifugal pump rotation speed to the industrial control computer by data acquisition equipment; 5) carrying out the coordination control on the buffer slot according to parameters and data set and acquired in the steps 2)-4) through a working condition judgment module, a constant control module and a PI control module by the industrial control computer; 6) repeating the steps 4)-5) till the system stops working. The coordination control method has the advantages of ingenious conception, accuracy and practicability, and can be widely used in the coordination control process of the actual production.

Description

technical field [0001] The invention relates to a control method, in particular to a coordinated control method for buffer tanks in the ore dressing process. Background technique [0002] Single-capacity water tanks are widely used in industry. According to different actual production and application requirements, single-capacity water tanks usually have two structures: one is to install a regulating valve at the output port of the single-capacity water tank. When the liquid level is stable, the output flow can be stable, so it is usually necessary to control the liquid level of the water tank to keep constant; the other is to install a centrifugal pump at the output port of the single-capacity water tank. Altitude is independent and is determined by the speed of the centrifugal pump. [0003] This kind of single-capacity water tank equipped with a centrifugal pump at the output is usually used as a buffer device, so it is also called a buffer tank. Its function is to allev...

AI Technical Summary

Problems solved by technology

But in actual operation, this kind of rolling optimization is too complicated, and it is inconvenient for industrial field application and debugging. Moreover, adopting this scheme will make the centrifugal pump speed constantly adjusted. Many fluctuations that can be suppressed by the buffer tank itself also need to adjust the centrifugal pump. The speed is stable, which is not good for the stability of the outlet flow of the buffer tank and the downstream production links.

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