The Research of Mica Pulp Concentration Detecting which Is Based on Laser with 650nm Wavelength

Abstract:

In order to solve the in-line inspection concerning mica-pulp which is in the state of lower concentration (0-6‰)& general concentration (1%-5%).And according to the photometric characteristics of absorption and scattering about mica-particles, we propose that the laser of wavelength (650nm) can be implemented the in-line inspection of concentration. Meanwhile, we gained the good effects regardless of whether adopted the theory of single scattering in the limit of lower concentration or use the theory of multiple scattering with respect to particle systems in the limit of general concentration. Thus, we can divide the inspection areas of concentration into linear zone (single scattering) & exponential region (multiple scattering) through the experiments data.Whereas, the precision of inspection can be up to 0.1‰ among the limit of lower concentration. Due to some phenomena anomalous scattering which its concentration only can be up to 6% in the certain condition of incident light. If adding intensity of light source which can increase the width of linear zone & exponential region, the valid region of inspection will be improved naturally. Thus, as for mica, the method of laser is extremely nice; its precision of inspection is high either.

• Periodical: Advanced Materials Research (Volumes 443-444)
• Pages: 389-394
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.443-444.389
• Online since: January 2012
• Authors: Yi Zhang, Ying Bo Zhu
• Keywords: Laser Mica Pulp Concentration

References

[1] Compile Group of Mica Integration Utilize. Mica Integration Utilize [M]. Beijing：China Building Industry Press，1982, pp：1-2.

[2] Zhang Yi. Auto-control Design of Mica-paper Production Line Based on PLC [J]. Non-Metallic Mines vol 235, JUN, 2007, pp: 23-25.

[3] Chen Fu-Tao. Study of Particle Sizing on, Welding Fume Based on Laser Scattering [D]. Tianjin: Tianjin university, 2005, pp: 18-20.

[4] Hu Dend. Investigation of Dust Density Measurement Based on Scattering Theory [D]. Suzhou: Suzhou University, 2007, pp: 25-28.

[5] Yang Jian. Research and design of scattering underwater on-line turbidimeter[D]. Shanghai: Shanghai Jiao Tong University, 2007, pp: 15-16.

[6] Li Yi-Jun. Theoretical and Experimental Study on Particulate Density and Granularity Measurement Based on Mie Scattering Theory[D]. Taiyuan：North University of China，2005, pp：43-45.

[7] Liu Hai-bo. Calculation on Laser Scattering Phase Function of Water PSO in Wet Steam[J]. Journal of Jilin University, vol 132, APR, 2007, pp: 398-402.

[8] Akira Ishimaru. Wave Propagation and Scattering in Random Media[M]. Beijing: science press, 1986, pp: 288-295.