Wet method ball mill belly expansion fault prediction device and method

Abstract

The invention relates to a wet method ball mill belly expansion fault prediction device and a method. The invention is characterized in that the device comprises a vibration signal detecting device and a monitoring computer, wherein the vibration signal detecting device is arranged on the surface of a tube wall of a ball mill and has the wireless communication function, the monitoring computer is arranged near the ball mill and has the wireless communication function, an acceleration sensor, an analog-to-digital conversion unit, a central processing unit, a data storage unit and a wireless data sending unit are prearranged in the vibration signal detecting device, a wireless data receiving unit, a ball mill belly expansion fault model training unit and a ball mill belly expansion fault prediction unit are prearranged in the monitoring computer, the central processing unit controls the analog-to-digital conversion unit to carry out analog-to-digital conversion on vibration acceleration signals collected by the acceleration sensor and to store the vibration acceleration signals into the data storage unit, the central processing unit calculates the data stored in the data storage unit, and sends the data to the wireless data receiving unit through the wireless data sending unit, and the wireless data receiving unit transmits the received data to the belly expansion fault model training unit and the fault prediction unit.

Description

technical field [0001] The invention relates to a fault prediction device and method, in particular to a wet ball mill swelling fault prediction device and method. Background technique [0002] The ball mill is an important grinding equipment in the production of mineral resources. Its main function is to grind the ore to the particle size required by the subsequent production process. There are two types of ball mills: dry ball mill and wet ball mill. The main difference is whether water needs to be added as an intermediate grinding medium during ore grinding, and the way the ore is discharged from the ball mill. The dry ball mill does not need to add water when it is working, and the ground ore is discharged from the ball mill in time through the blast; the wet ball mill needs to add water when it is working, and the fluidity of the slurry mixed with ground ore and water and the inclination angle inside the ball mill are used. The ground ore is discharged from the ball mi...

AI Technical Summary

Problems solved by technology

Due to the large working noise of other equipment on the grinding site, the noise detection device is easily disturbed, so the application effect is poor

In the wet ball mill, the material in the ball mill will move centrifugally with the wall of the cylinder only when the belly is already inflated, resulting in a sudden decrease in the work of the drive motor. Therefore, the detection of the driving current cannot play a role in predicting the failure of the inflated belly.

Therefore, for wet ball mills, there is still a lack of effective belly failure prediction methods and devices for practical applications.

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