Scantech International Pty Ltd - Online Process Control Technology

Scantech specialises in the on-line analysis of bulk solids on conveyor belts to provide real time process control information of the quality of the materials. The COALSCAN and GEOSCAN range of monitors are world leaders in providing the resources sector with real time information on product quality for process control.

WIDE-RANGING PROCESS CONTROL EQUIPMENT

Scantech process control equipment can be used in a wide range of applications, including the monitoring of coal, iron ore, cement manufacture and a range of metal ores and concentrates.

We provide feed forward and feed back control at mines, beneficiation plants, power stations, steel plants and cement works.

A wide range of quality parameters can be measured, including moisture content, elemental content, ash and energy content in coal. A range of key process variables, such as energy content of coal, LSF in cement manufacture, or Fe:Mg ratio in metal concentrate smelting can be calculated and reported and trended in real time.

REAL TIME QUALITY CONTROL FEEDBACK

Real time information allows personnel to make real time decisions, instead of waiting hours, even days, for the feedback of key quality information from conventional sampling and analysis. Real time information puts you in control of the plant, instead of making forced decisions when product quality fails to meet specification.

Analysis takes place on the conveyor, without the need to take samples or to interfere with the flow of material or the operation of the conveyor. Avoiding regular conventional sampling reduces laboratory and maintenance costs, and makes the result more representative, replacing a series of sample cuts with continuous monitoring.

COALSCAN and GEOSCAN technologies are full, non-contact systems, which are independent of belt width, belt speed, trough angle or size of the ore lumps.

PROCESS CONTROL APPLICATIONS

Our equipment can be used to provide feedback to the mine face to minimise dilution and optimise the extraction of the resource. This enables lower grade zones to be scheduled together with higher grade zones.

The COALSCAN and GEOSCAN technologies can be used to monitor ore as it is placed on stockpiles feeding the plant. Many processes operate more efficiently when the feed is consistent and when crucial parameters and ratios are kept within acceptable limits.

Also, monitoring the concentrate from the beneficiation plant can be achieved, ensuring that it is within specification and rapidly detects abnormal products. This enables the process to be rectified quickly and the amount of abnormal products minimised.

COALSCAN and GEOSCAN are also suitable for:

• Blending from stockpiles, ensuring optimum feed to the down-stream process
• Load out monitoring, ensuring delivered product meets specification

These general applications can be customised to suit individual plants. Examples include:

• Monitoring the moisture in iron ore and coke fed to blast furnaces
• Monitoring the sulphur in coal fed to power stations, to ensure environmental guidelines are met and to minimise the costs of FGD plant operation.
• Automatic blending of limestone and additives to obtain the correct chemistry of the raw meal in cement clinker manufacture
• Monitoring moisture in just about any material, from washed coal to metalliferous concentrates.
• Monitoring dilution in coal mining: product specification coal can be directed to bypass the washery and feed straight to product stockpiles, increasing yield and resource life and reducing costs.
• Blending intermediate products to meet quality targets. The reporting system can be configured to control reclaim rates in real time to ensure close match to plant feed specifications.

CUSTOMISED SOLUTIONS

Scantech specialises in providing customised solutions to individual plant requirements. This ranges from customising the analyser to suit the conveyor and the material, to providing customised plant interfaces and operator displays.

CUSTOMISED SUPPORT PACKAGES

Scantech provides post-commissioning support through remote monitoring via modem or internet, Help Line access and on-ground support through its network of Authorised Service Representatives and scheduled maintenance by Scantech engineers.