Control method with deviation rate adjustment function

A rate adjustment and rate technology, applied in liquid level control, non-electric variable control, control/regulation systems, etc., can solve the problems of inaccurate adjustment accuracy, unstable product quality, and oscillation of the adjustment loop, and achieve precise adjustment control, Avoid production erratic effects

Inactive Publication Date: 2015-06-17
SHANXI TAIGANG STAINLESS STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Iron ore flotation foam liquid level control adopts PID regulation loop control, and the regulation loop oscillation phenomenon often occurs in the production process, resulting in inaccurate regulation accuracy, resulting in unstable production and unstable product quality

Method used

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Embodiment Construction

[0016] figure 1 As shown, the present invention is composed of a laser liquid level sensor, a PLC, and a pneumatic control valve. The input of the pneumatic control valve is connected to the output of the PLC, the input of the PLC is connected to the output of the laser liquid level sensor, and the input of the laser liquid level sensor is connected to the flotation device. The slurry outlet and the output of the pneumatic regulating valve are connected to the inlet.

[0017] The PLC uses Siemens 417 system.

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Abstract

The invention provides a control method with a deviation rate adjustment function, and belongs to the field of mineral separation control. The control method is realized through a laser liquid level sensor, a PLC and a pneumatic adjustment valve, wherein the input of the pneumatic adjustment valve is connected with the output of the PLC, the input of the PLC is connected with the output of the laser liquid level sensor, the laser liquid level sensor is arranged inside a floating cell, and the pneumatic adjustment valve is connected with an ore pulp input pipe. By the adoption of the control method, adjustment control is accurate and the phenomena of unstable production and unstable product quality can be avoided.

Description

Technical field [0001] The invention belongs to the field of beneficiation control, and specifically relates to a control method with a deviation rate adjustment function. Background technique [0002] The foam level control of iron ore flotation adopts PID regulation loop control. During the production process, the regulation loop oscillation phenomenon often occurs, resulting in inaccurate regulation accuracy, resulting in unstable production and unstable product quality. Summary of the invention [0003] The invention provides a control method with a deviation rate adjustment function with accurate adjustment accuracy. [0004] The invention consists of a laser liquid level sensor, a PLC, and a pneumatic regulating valve. The input of the pneumatic regulating valve is connected to the output of the PLC, and the input of the PLC is connected to the output of the laser liquid level sensor. The laser liquid level sensor is arranged in the flotation tank and the pneumatic regulating...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05D9/12
Inventor 陈若珩宋迎春刘志杰
Owner SHANXI TAIGANG STAINLESS STEEL CO LTD
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