Material Level Noise Measuring For Steel Ball Coal Mill
A new material level noise measuring method of steel ball coal mill was proposed on the basis of energy entropy of wavelet packet and least squares support vector machines. first, four layers wavelet packet decomposition of the acquired noise signals was performed and the wavelet packet energy entropy was extracted; then the eigenvector of wave packet of the noise signals was.Alibaba.com offers 268 coal powder burner products. about 8% of these are energy saving equipment. a wide variety of coal powder burner options are available to you, such as local service location, key selling points, and applicable.