By: Hayes from South Africa
Coal wash Plant
A coal preparation plant (CPP; also known as a coal handling and preparation plant (CHPP), coal handling plant, prep plant, tipple or wash plant) is a facility that washes coal of soil and rock, crushes it into graded sized chunks (sorting), stockpiles grades preparing it for transport to market, and more often than not, also loads coal into rail cars, barges, or ships.
The more of this waste material that can be removed from coal, the lower its total ash content, the greater its market value and the lower its transportation costs
Control and instrumentation is a very important part of a CPP. Measurement of flow, density, levels, ash and moisture are inputs to the control system. PLCs are used extensively in plant design. SCADA systems are typically used to control the process. Other instrumentation found in plants include density gauges and online elemental coal analysers.
Depends on the CPP a lot of I/O is required from the plc and need a strong remote I/O infrastructure
CPP control cabinet
By using Haiwell PLC in the CPP application，Haiwell partner from South Africa achieve a low cost PLC with fast processing power and large remote I/O function with strong communication platform exceeding 600 I/O points with ease.
The strong Haiwell SCADA P21” industrial PC interfacing smoothly with plc and can be accessed from anywhere in the world giving investors the ability to data any time and any place.
CPP Plant & Haiwell IPC SCADA interface
Part of SCADA and PLC program
1. IPC SCADA design
IPC SCADA interface
2. PLC Program
Program of Remote I/O Internet communication
PLC Logic Control Program