EMS CLASSIFIER CONT’D Operating as a batch process, the powerful drive and robust stainless steel structure allow the classifier to stand idle, sometimes for several hours while the grit accumulates inside. The grit is then discharged in a matter of minutes delivering maximum energy savings with minimal wear & tear. The inverter control of the drive also provides varying rotational speeds for the auger. All EMS products are designed and manufactured in the UK. EMS also provides site surveys, optioneering, system design and consultation as well as manufacture, mechanical and electrical installation, commissioning and after sales service all from its factory base in Stoke on Trent.
• GC250 • GC500 • GC1000 • GC1500 • GC2000
DETRITOR The Detritor is a continuous flow tank in which the grit settles due to gravity and the water overflows through the outlet weir on the opposite side. The settled grit is scraped by means of a scraper mechanism towards the grit hopper openings situated on the Detritor sidewall at the bottom. The collecting mechanism consists of three structural steel arms that are attached to a vertical shaft and fitted with outward raking blades with scoops fitted on the ends. A Detritor motor/gearbox drive arrangement would be mounted centrally on the Detritor bridge from which would be suspended a central drive column for the grit collection scrapers. Current designs feature a robust, bridge mounted slewing ring driving a much heavier centre tube. This provides an assembly that can withstand all the lateral forces generated by the power of the drive and the resistance to scraping the grit on the floor of the Detritor. A worm wheel gearbox along with a torque limiter and drive motor are mounted on a galvanised steel bridge featuring galvanised hand rails and galvanised open mesh flooring with kick plates. The drive motor would be driven by a variable speed drive, delivering speed control, saving energy and more importantly providing superior protection for the scraper bridge assemblies. EMS offers two options with regards to removing the grit from the collection hoppers: • The EMS HYDRAKE • EMS grit pumping arrangement. Both systems deliver superior grit removal and an excellent “whole life cost”.
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