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For a high energy loss and complex system of ball mill, this paper provide a ball mill load detection method based on genetic algorithm optimizing BP neural network. The effective frequency range of mill sound signal is analyzed. The soft measurement model of mill load based on mill sound signal is built.
A novel method of feature extraction based on the consistency weighted fusion algorithm for ball mill load measurement is proposed in the paper. The new method is according to the principle of multi-sensor consistency measuring and the method is suitable for the analysis of ball mill noise signal or vibration signal.
constant ball load of 28%. In the pilot scale experiments, the Magotteaux ball mill at Frank Concentrator was equipped with a Sensomag sensor for measuring the toe and shoulder angles of the slurry and ball load based on the principle of conductance and induction, respectively. The mill was configured to operate as a RoM ball mill.
Request PDF on ResearchGate | Experimental investigation of vibration signal of an industrial tubular ball mill: Monitoring and diagnosing | To achieve improvements in the production capacity and ...
Evaluation of Abrasive Wear Measurement Devices of Mill Liners. vibration from the Lulea University of Technology (Sweden), ... analysis of maintenance data, out of 6-8 mill ..... behaviour and power draw wear on a ball mill.
Study on the Method for Collecting Vibration Signals from Mill ... At present the method for measuring the ll level which used the vibration signal of mill shell shows its advantage compared with other methods. However, this method is developed late, and the technique for collecting the vibration signal from mill shell is ... ball mill system ...
Aug 01, 2010· Abstract. Real-time measurement of the mill load is the key to improve the production capacity and energy efficiency for the grinding process. In this paper, experimental analysis of the wet mill load based on the vibration signals of the laboratory-scale ball mill shell is presented.
analyze and explain the shell vibration signal. Results show that different decomposition algorithms have different advantages and shortcomings. The further research direction is that how to fuse these sub-signals and model load parameters inside the ball mill. .
4. A BALL MILL VIBRATION MEASUREMENT AND INTERPRETATION OF RESULTS Vibration measurement has been done by using a piezo electric accelerometer SA620 with sensitivity 100mV/g (Metrix, USA), an amplifier type Spider 8 with software for signal .
Ball mill load measurement is essential to control and operational optimization for the wet grinding process, which affects the production efficiency and energy consumption. A frequency spectral information fusion soft sensor model is proposed to estimation the mill load in the paper. PCA is used to extract the feature of frequency spectrum to deal with many, noise and collinear variables.
monitoring of the ball mill load based on shell vibration signal with high sensitivity and strong anti-interference improve the quantitative and qualitative measurement performance of mill load. Gugel et al (2007) [9] proposed dual-array accelerometers to obtain vibration signals from the shell wall, the result shows that the detection
Multi-Channel Vibration Feature Extraction of Ball Mill Using ... Vibration sensor can measure both static and dynamic vibration, or it can measure dynamic ... components [24]. The nature of the signal from the ball mill is chaotic in nature. The nature of the
Request PDF on ResearchGate | Experimental analysis of wet mill load based on vibration signals of laboratory-scale ball mill shell | Real-time measurement of the mill load is the key to improve ...
Study on the Method for Collecting Vibration Signals from. At present the method for measuring the fill level which used the vibration signal of mill shell shows its advantage compared with other methods. However, this method is developed late, and the technique for collecting the vibration signal from mill shell is immature.
CiteSeerX - Document Details (Isaac Councill, Lee Giles, Pradeep Teregowda): This paper deals with the experimental investigation of vibrations of a ball mill under variable load. The common causes of vibrations of the ball mill are described in short. The exciting frequencies at which the possible causes of vibration can be recognised are estimated for all principle parts of the ball mill.
Amongst current techniques of measuring the fill level, the vibration .... In Figure 5, a trigger device of photoelectric switch is placed below the mill. ..... of wet mill load based on vibration signals of laboratory scale ball mill shell,... Get Price Planetary Ball Mill PM 100 CM RETSCH gentle size reduction. The Planetary Ball Mill PM 100 ...
Method for Detecting Load of Ball Mill . Date：2016-10-04 Source：zk corp Views: Ball mill load, ... When measuring the pulp in the face of ball mill, determine the height of the pulp in the mill according to the output of the electrodes with the electrode detector. ... noise and vibration signal detection, double power double vibration ...
MEASUREMENT POINT BALL MILL DRIVES, LOADED, WAVEFORM LEVELS, SEPTEMBER 1A 1B • Above is a plot of the waveform vibration levels at both the 1A & 1B ball mills when loaded (acceleration). • Note how waveform levels at 1A ball mill are higher than that at 1B ball mill for every measurement and
An unplanned stop must be avoided at almost any cost. Many years ago, SPM Instrument installed a VCM system on the mill gearbox and motor. Image 1. The ball mill at Orcem Netherlands. Image 2. The gearbox, just renovated, with the shock pulse and vibration sensors. Image 3. A principal overview of the ball mill. 4 System setup. 4.1 Measuring ...
Mechanical vibration signals at different locations are used to build mill load soft measuring models for different types of ball mills in various application backgrounds. The measuring devices are installed on an industrial-scale dry ball mill (only ball and material loads are inside the mill) in .
A soft sensor method is proposed to estimate the mill load in this paper. Vibration signal of mill shell in time domain is first transformed into power spectral density (PSD) using fast Fourier transform (FFT), such that the relative amplitudes of different frequencies contain mill load information directly.
Evaluation of Abrasive Wear Measurement Devices of Mill Liners. vibration from the Lulea University of Technology (Sweden), ... analysis of maintenance data, out of 6-8 mill ..... behaviour and power draw wear on a ball mill. ... Accurate detection of the ball mill load is one of the key factors to realize the ... square (PLS) based approach is ...
At present the method for measuring the fill level which used the vibration signal of mill shell shows its advantage compared with other methods. However, this method is developed late, and the technique for collecting the vibration signal from mill shell is immature. In this paper, a novel method for collecting the vibration data from mill shell is proposed.
Abstract: Ball mill load monitoring and rational parameters setting are important to ensure the ball mill long-term stable operation. Although vibration and acoustic signal of shell contain plenty of information about mill load, it is difficult to select the feature of them in time domain.
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