Study on the Detection of Slurry Concentration in the Thickener

Abstract:

The detection of flocculation in the thickener has a significant impact on the realization of the closed-loop control of the thickener production. In this paper, a slurry concentration detector is designed based on a parallel plate capacitive sensor. The relation between the slurry concentration and the measurement of the capacitive sensor is obtained for mass percentage concentration of the slurry between 5% and 25% through a large amount of experiments. The results are compared and verified by a known relation experimentally and the errors are less than 5%. The reliability of the relation and the feasibility of the detector equipment are verified, which provides a reliable detection method for the realization of closed-loop control of the thickener production.

• Periodical: Applied Mechanics and Materials (Volumes 513-517)
• Pages: 2947-2953
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.513-517.2947
• Online since: February 2014
• Authors: Cheng Lian Zhang*, Gong Peng Zhang, Jie Ma
• Keywords: Concentration Detection, Parallel Plate Capacitive Sensor, Slime Water

References

[1] Chenglian Zhang. Testing Research of Slurry Water Concentration Based on Natural Gamma-Ray Attenuation Method. 20113rd International Conference on Computer and Network Technology (ICCNT 2011), 2011, pp.507-509.

[2] Chenglian Zhang. Study on the regularity of the Natural gamma-ray attenuation in the slurry water. Advanced Materials Research Vols. 468-471(2012), pp.1031-1035.

DOI: 10.4028/www.scientific.net/amr.468-471.1031

[3] Chaodong, Tong. Automatic Control System the Medicament into Coal Preparation of Dongtan Coal Mine[J]. Clean Coal Technology. 2001, 7(1).

[4] Ling Jiang, Dongchen Zhang, Chao Zhang. The present research situation and Prospect of china in thickener's auto dosing[J]. Ming&ProcessingEquipment, 2007, 35(1).

[5] Weidong, Wang, ZHANG chenglian. ARM based Coal water slurry viscosity online testing device. Coal Mine Machinery, [J], 2011. 2, PP149-150.

[6] Xianmei Dong，Guijun Gao，Ziming Kou, Based on coal slime interface detection of flocculation dissolved liquid automatically add system research ,  Coal Preparation Technology, 2007，4: 102~104.