Demier International Co.

Wang Thonglang, Thailand

Demier International Co.

Wang Thonglang, Thailand
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Puaughom C.,Demier International Co. | Pankarnchanato P.,Demier International Co. | Limsutthiphong P.,Demier International Co. | Julsereewong P.,King Mongkut's University of Technology Thonburi
ICIC Express Letters, Part B: Applications | Year: 2014

This article presents an automation system of continuous evaporating crystallization based on the DECHAROEN™ technology. The proposed system can be designed in two different ways to support all users' requirements in computerized automation controllers. The first solution is realized based on the use of distributed control system (DCS). The second solution is implemented by using combination of programmable logic controller (PLC) and supervisory control and data acquisition (SCADA). Hardware configurations using SIEMENS PCS7 and using SIEMENS S7-300/WinCC are included to demonstrate the designed concepts. Results of modernized and automated raw sugar boilings using continuous vacuum pans (CVPs) are compared to data of previous processes using batch pans for verifying the effectiveness of the proposed system. Moreover, the proposed automation system is widely accepted by 16 cane sugar manufacturers located in China and Thailand. © 2014 ISSN 2185-2766.


Puaughom C.,Demier International Co. | Pankarnchanato P.,Demier International Co. | Limsutthiphong P.,Demier International Co. | Julsereewong A.,King Mongkut's University of Technology Thonburi
ICIC Express Letters, Part B: Applications | Year: 2014

This article presents a new technique for improving low-grade sugar boiling station to produce a single grade raw sugar. The proposed modification method is based on a seed production using two-stage batch system with two pans. Daily reports of production of quality raw sugar of about 99° Z during the period before (2011/12 crushing season) and after (2012/13 crushing season) the improvement at Saraburi Sugar Co., Ltd., Thailand, whose crystallization process was modified, are used to validate the new proposed technique. Comparison results show that the proposed sugar boiling system provides more efficient crystallization and less steam and electrical power consumptions to produce raw sugar with acceptable characteristics. © 2014 ISSN 2185-2766.

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