EnviroTech has been working hand in hand with the mining industry for the past 50+ years. EnviroTech’s very first product was the worlds very first polymer drum filter. EnviroTech was foundedhttps://www.empslc.com/products/filter-plates/ based on the ability to transition old school wood and metal drum filters to plastic drum filters that proved to have better chemical resistance and durability than its wooden counterparts and significantly cheaper than the metal alloy drum filters being used at the time. We still produce 3’, 6’, 8’, 12’ and 14’ drum filters for a wide variety of clients to this day.
EnviroTech’s line of filter elements are being used in treatment plants around the world within the mining industry. Their most frequent application is for dewatering coal and coal-fine tailings as well as ore concentrates such as zinc, iron, copper and noble metals. These concentrates emerge from the flotation process where they then undergo dewatering to reach the required maximum permissible water content (TMC) for transportation. High-capacity processing is required so quick cycle times are necessary. Filtration times are reduced to a minimum resulting in high flow rates combined with abrasion in the fill channels and inlets/outlets. This is also the case for drying at the end of the filtration cycle where the water in the cake’s pores is blown out. Metals from the ore concentrates are solubilized using mineral acids and then chemically dissolved before being separated in a precipitation process. Membrane filter plates are preferred here to achieve high yields during cake washing. The filter material used here needs to have a high level of chemical resistance as well being able to cope with high temperatures.
EnviroTech’s unique custom injection molding capabilities and 50+ years’ experience of continuous improvement of our process controls, we are able to injection mold virtually any thermoplastic polymer resin and additive compositions to provide solutions never thought possible before.
Contact our product development team today to help solve the challenges of tomorrow.
Here are some of the products we are capable of producing in this area:
- Drum Filters
- Filter Plates
- Hydro-Cyclone Filters
- Liquid-Solid Separators
- Metal to Plastic Conversion
You can think it; we can mold it!