Programmable Logic Controller for Cassava Centrifugal Machine

Chaiyaphum Starch Co. Ltd. is one of many starch manufacturers that has introduced machinery to aid in manufacturing. Even though machinery has replaced many elements and is now a significant part in manufacturing processes, problems that must be solved with respect to current process flow to increase efficiency still exist. The paper-s aim is to increase productivity while maintaining desired quality of starch, by redesigning the flipping machine-s mechanical control system which has grossly low functional lifetime. Such problems stem from the mechanical control system-s bearings, as fluids and humidity can access into said bearing directly, in tandem with vibrations from the machine-s function itself. The wheel which is used to sense starch thickness occasionally falls from its shaft, due to high speed rotation during operation, while the shaft may bend from impact when processing dried bread. Redesigning its mechanical control system has increased its efficiency, allowing quality thickness measurement while increasing functional lifetime an additional 62 days.

Authors:

• R. Oonsivilai
• M. Oonsivilai
• J. Sanguemrum
• N. Thumsirirat
• A. Oonsivilai

Keywords:

• Control system
• Machinery
• Measurement
• Potato starch

References:

[1] Sriroth, K. and Piyachomkwan K., "Starch Technology", 3rd ed.,
Kasetsart Publishing, 2003.
[2] Norton, R.L., "Design of Machinery: An Introduction to the Synthesis
and Analysis of Mechanisms and Machines", McGraw-Hill, 2004.
[3] A. Oonsivilai, K. A. Greyson, "Optimization of distributed processors
for power system: Kalman Filters using Petri Net". Proc. WASET, May
27-29, Tokyo, Japan, 2009.
[4] A. Oonsivilai, and R. Oonsivilai, A genetic algorithm application in
natural cheese products. WSEAS TRANSACTIONS on SYSTEMS.
Issue 1, Vol 8, January, ISSN : 1109 - 2777, pp: 44 - 54, 2009.
[5] R. Oonsivilai, and A. Oonsivilai, "Temperature profiling during
fermenting processing differential evolution," Proceeding of the 9th
WSEAS International conference on energy and environment. Febuary
23- 25, Cambridge, London. 2010.
[6] R. Oonsivilai, and A. Oonsivilai, "Differential evolution application in
temperature profile of fermenting," WSEAS TRANSACTION on
SYSTEMS. Issue. ISSN: 1109-2777. Issue 6(9): 618-628, 2010.
[7] A.Oonsivilai, J. Satonsaowapak, T. Ratniyomchai, T.
Kulworawanichpong, P. Pao-La-Or, and B. Marungsri, "Response
surface method application in gasifier system identification for biomass
power plants,"WSEAS TRANSACTION on SYSTEMS, ISSN: 1109-
2777, Issue 6, vol. 9, June, 2010.
[8] R. Oonsivilai, C. Cheng, J. A. Bomser, M. G. Ferruzzi, and S.
Ningsanond, "Phytochemical profiling and detoxification properties of
Thunbergia Laurifolia Lindl (Rang Chuet) extracts," Journal of
Ethnopharmacology, vol 114, pp 300- 306, 2007.