Rotoshear Internally Fed Rotating Wedgewire Drum Screen EZ Care Brochure

Internally-Fed Rotating Drum ScreenRotoshear® EZ-CARE™ – Higher capture rates, better product recovery – Custom designs for municipal WWTPs and industrial applications – Application experience (over 1,000 units sold) – Quality, robust design with installations over 30 years old – First and only “Periodic Maintenance-Free” rotating drum screenRotoshear® EZ-CARE™ applicationsAvailable screen media typesWhy use rotary drum screensinstead of other screens? What is the Rotoshear® EZ-CARE™?The Rotoshear® screen is a high capacity, self- cleaning, fine screen that uses wedgewire media to separate solids from liquid streams. It was developed over three decades ago and it has been continually updated with new design enhancements. The “EZ-CARE” upgrade makes the Rotoshear® the first and only “Periodic Maintenance-Free” rotating drum screen in the market. There are ten models available with many application-specific custom features.How does Rotoshear® EZ-CARE™ work?Rotoshear® EZ-CARE™ unit is an internally-fed rotary wedgewire cylindrical screen that operates with minimal attendance. Influent enters through the inlet pipe and flows into a headbox. The headbox fills and the influent cascades over the weirs and contacts two sides of the rotating cylinder screen. As the influent hits the turning screen, the solids are caught inside the cylinder and the liquid passes through the screen into the process or on for further treatment. Diverters on the cylinder move the solids along the length of the screen to discharge. The unit is equipped with spray bar(s) to clean the screen.Municipal – Pretreatment at wastewater treatment plants – Pre-membrane screening – Fine screening in lieu of primary clarification – Sludge screening (RAS / WAS / Combined) – Scum and grease screening – Final effluent screeningIn Municipal Applications: – High capacity, high capture rate – Eliminate costly primary clarifiers – Cleanest WWTPs are designed with rotating drum screens – Eliminate the risk of bypass associated with other screen types – Totally enclosed (minimizes odors) – Eliminate costly channelsIndustrial – Meat Processing – Poultry – Fruit and vegetable processing – Beverage (wine, beer, other) – Pulp and paper – Tanneries – Plastics recycling – PetrochemicalsWedgewire0.010” to 0.100”Rotoshear® Rotoshear® PF RotomeshPerforated Panels1mm or 2mmWiremesh30µm to 1000µmIn Industrial Applications: – High product recovery – Self-cleaning – Minimal downtime and maintenance – Simple operation – Finer openingsMaintenance SavingsTypical Maintenance Requirements of Rotating Drum ScreensPeriodic Maintenance ItemRotoshear® EZ-CARE™ Competitor’s Design* 20 Year Savings**Drive System None Daily $75,000Trunnion Wheels None Weekly $60,000Stabilizer Pads / Wheels None Weekly $30,000Rotoshear® EZ-CARE™ screen dimensions (in inches)Model Length Width Height Hp (kW)HRS2448DV 91½ 50½ 41½ ½ (.37)HRS3648DV 95 58½ 53½ ½ (.37)HRS3672DV 119 58½ 53½ ½ (.37)HRS4860 145 84 66 1HRS4872 160 84 66 1HRS6072DV 145 92 81 1 (.75)HRS6096DV 174 92 81 1½ (1.11)HRS60120DV 194½ 92 81 2 (1.5)HRS60160DV 235¾ 92 81 2 (1.5)HRS80160 251 114 107 5 (3.8)* Different manufacturers require different periodic maintenance per IOMs. Other manufacturers’ requirements are selected based on the commonality.** Maintenance savings include labor and lubricant costs. Labor cost is assumed as $25.00 an hour. These numbers are subject to change per application.BASEFRAMEDIVERTERFLIGHTSSPRAYSYSTEMROTATINGWEDGEWIRECYLINDERHEADBOXINFLUENTDRIVESYSTEMDISTRIBUTIONPANFeatures and benefits: designed with the operator in mindFort LauderdaleChicagoMontrealDubaiMumbai1.888.PARKSONtechnology@parkson.comwww.parkson.comThe Rotoshear® EZ-CARE™ screen is built for high capacityThe Rotoshear® EZ-CARE™ has application-specific custom headbox designs which were developed over the years with application experience. While the headbox design maximizes the capacity, it ensures the dryness of the captured solids.Lube-free drive system (patent pending)The Rotoshear® EZ-CARE™ utilizes reliable chain and sprocket coupling to rotate the screen cylinder. The hybrid design drive system’s wear factor is so low the drive system runs for years without any lubrication.Lube-free trunnion wheels (patent pending) (optional)The Rotoshear® EZ-CARE™ is applying a patented lubrication technology to the wastewater treatment industry. The self-lubricating polymeric components are heat processed into the wheel bearings. Using the patented technology eliminates the need for periodic external lubrication and acts as a secondary seal mechanism extending the life of the trunnion wheel bearings. In addition, the new trunnion wheel bracket permits the operator to replace the trunnion wheels within minutes minimizing any downtime.Lube-free stabilizer pads (patent pending) (optional)It is very important to keep the screen cylinder stabilized for optimum performance of the screen. Some designs utilize stabilizing wheels or pads which require lubrication. The Rotoshear® EZ-CARE™ places the stabilizer pad at a very convenient location for ease of inspection. Its unique design eliminates the need for lubrication. Special drum design maximizes captureThe Rotoshear® EZ-CARE™ screen is constructed of quality stainless steel wedgewire, perforated panels or woven wiremesh which are recognized for their ability to handle stringy fibers and greasy solids. Automatic spray system with quick disconnect nozzlesThe Rotoshear® unit has two separate spray systems: an internal spray to clean the screening surface of the cylinder, and an external spray system to keep the screen openings clear. The spray system is designed for easy nozzle cleaning. Fast, easy installationRotoshear® EZ-CARE™ units are shipped assembled – only piping, power and water require on-site connections. Rotoshear® EZ-CARE™ screens can have custom options such as flanges, support legs, and drain pans to make the unit free standing, and end enclosures are available to control odors.SCWW-HRS-EZ_071712