The MEP Hydrolig is a hindered settling classifier based on the principles of the TBS Hydrosizer, however it has been adapted to handle materials of up to 40 mm in size. It is ideally suited to remove lightweight contaminates.
The Hydrolig uses upward current water and the natural sand within the feedstock to create a column of teeter in the vessel. This is in effect a dense media which causes the lightweight and smaller particles to separate and report to the overflow, whereas the larger particles report to the discharge spigot.
If the natural sand is not present it becomes necessary to introduce sand in a closed circuit system.
The Hydrolig works on a fail safe control system. The control system is electronic and it provides automatic and immediate response to variations in feed conditions.
It is essential for the successful operation of the Hydrolig to maintain a constant supply of upward current water at a constant pressure. The Hydrolig uses the Teeter Plate system to evenly distribute the upward current water within the machine; this helps to give a controlled and steady condition in the vessel to provide maximum efficiency of separation.
The Hydrolig operates on material up to 40 mm. The system is such that much of the sand, together with all the contaminates, report to the overflow of the machine. It is therefore normal to screen the overflow material at approximately 5 mm to separate the larger contaminates. The < 5 mm material will then need to be retreated in a TBS Hydrosizer to remove lignite from the sand sizes.
Product Benefits
- Best separation efficiency.
- Low running and maintenance costs.
- Low energy requirement.
- Small footprint.
- Less operator attention than other devices.
Typical Applications
The Hydrolig can be used on alluvial, river terrace, marine dredged aggregates or recycled materials. It is simple to operate and the most effective and efficient method of treating this type of feed material. The system offers a low cost treatment of contaminated ballast and can prevent large claims against contaminated material.
