Application Case

Haiwell Application in coal mining industry at ZA

2019-08-23 15:17:32 Xiamen Haiwell Technology Co., Ltd. Read

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

CPP Plant


Technological Requirements

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 

Haiwell Application in coal mining industry at ZA

CPP control cabinet


Allocation Plan 

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.


Haiwell Application in coal mining industry at ZA

CPP Plant & Haiwell IPC SCADA interface


Part of SCADA and PLC program

1. IPC SCADA design

Haiwell Application in coal mining industry at ZA

IPC SCADA interface


2. PLC Program

Haiwell Application in coal mining industry at ZA

Program of Remote I/O Internet communication


Haiwell Application in coal mining industry at ZA

PLC Logic Control Program