Fuzzy control device and method for controlling filling-material concentration

Abstract

The invention relates to fuzzy control equipment and a fuzzy control method for controlling the concentration of filled slurry. The fuzzy control equipment comprises a dry sand quantity and moisture content calculation unit, an auxiliary material and water initial add quantity calculation unit, an auxiliary material and water practical add quantity detection unit, a compensator, an auxiliary material and water preset add quantity calculation unit and an auxiliary material and water add control unit. The fuzzy control equipment is used to correct auxiliary material preset add quantity by meansof auxiliary material practical add quantity and control the add quantity of auxiliary material on the basis of the corrected auxiliary material preset add quantity; moreover, the fuzzy control equipment also corrects water preset add quantity by means of water practical add quantity and controls the add quantity of water on the basis of the corrected preset add quantity. The fuzzy control equipment is suitable for practical process conditions and overcomes the disadvantage of greater consumption cost of auxiliary material in a continuous preparation method; filling concentration is detected and water initial add quantity is corrected through a fuzzy control unit; and the fuzzy control equipment eliminates system accumulated error or deviation and ensures filling quality and key parameters.

Description

Fuzzy control equipment and fuzzy control method for controlling the concentration of filling slurry technical field The invention relates to a fuzzy control device and method for controlling the addition of auxiliary materials and water to mine goaf filling tailings, in particular to a fuzzy control device and a fuzzy control method for controlling the concentration of filling slurry. Background technique With the continuous reduction of global mineral resources, the filling method is adopted by more and more mines as a safe, environmentally friendly and low-loss mining method. Abroad usually adopts slurry batch preparation technology: in which tailings, auxiliary materials and water are weighed in advance according to a certain proportion and stirred evenly, and then sent to the goaf underground. Although this technology is easy to implement in terms of ensuring the ratio and concentration of lime-sand, the procedure is more complicated. Most of the domestic slurry con...

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Problems solved by technology

The increase of lime-sand ratio increases the consumption cost of auxiliary materials, such as cement (such as cement)

Secondly, although the existing slurry continuous preparation process also utilizes the feedback of the slurry concentration discharged from the stirring tank to control the amount of water added to the stirring tank, the control effect is not very satisfactory, mainly due to the lag in the discharge of the stirring tank , and the lag time is also fluctuating

In addition, the daily calibration of the concentration meter under the stirring tank is inconvenient, and the accuracy is usually low

In this way, the concentration of the filling material released from the stirring tank changes greatly, which affects the filling effect.

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