Coal
MEP have over 35 years of experience in coal preparation.
We use our experience in coal preparation to design and produce the most efficient equipment and plant. Our proven equipment has time and again come out on top of the competition and continues to do so worldwide.
Modular Fine Coal Treatment Plant
The plant comprises seven modules of rigid compact design, fitted with proven equipment which can be easily transported to site and rapidly erected. Moreover, the modular concept of construction ensures the most economical design and hence lower overall costs. Another advantage is that the entire plant can be easily dismantled, moved and re-erected at a different site.
The MEP Fine Coal Treatment Plant can be used in conjunction with any coarse coal washing system and by increasing the aperture size of ‘Pre-wet’ and ‘drain and rinse’ screens, significant increase in overall production throughout the washery can be achieved.
1. The underflow from the raw coat screens is pumped at approximately 15% w/w solids to the MEP 4 way in-line Cyclone manifold. The excess water and slimes is overflowed and piped to flotation or effluent treatment. The cyclone underflow feeds an MEP TBS Hydroiszer.
2. The TBS Hydrosizer is a hindered settling classifier using upward current water to create a zone of teeter to separate coal from the rejects. The density in the machine is constantly monitored and automatically controlled to give an accurate separation. The density of separation can be adjusted to vary the ash content of the clean coal.
3. The low ash coal overflows the TBS Hydrosizer with the majority of the water and reports by gravity to the secondary sump.
4. High ash refuse is rejected through the spigot valves in the base of the machine and is collected in the effluent sump and subsequently pumped to flotation r effluent treatment.
5. Upward current water is provided by a pump from a sump with a level probe to maintain a constant head of water.
6. The water is pumped at a constant pressure and volume to the TBS Hydrosizer, creating the necessary teeter bed within the vessel.
7. The TBS Hydrosizer product from the overflow is pumped to a secondary Cyclone where it is de-slimed.
8. The underflow passes over a Sieve Bend or Screen which further de-slimes and de-waters the coal.
9. The coal is then fed by gravity to a MEP / CMI fine coal slurry Centrifuge, which completes the de-watering and provides a low surface moisture product which is added to the coarse coal.
