Rotofeed Pneumatic Injector
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Catalog excerpts

Rotofeed Pneumatic Injector - 1

Rotofeed Pneumatic Injector Introduction Schenck Process RotoFeed range is designed to effectively inject solid materials into processes, either continuously or on a batch basis, to one or multiple points. This system injects materials with accuracies of 2% by volume or 0.5% by weight depending on the control method employed volumetric or weight related respectively. Materials can be injected into processes at distances of up to 500 metres, with back pressure of up to 30 bar(g). The vessel utilises the Original Dome Valve™ and the RotoFeed pneumatic injection dispensing unit. The original Dome Valve® Central to the operating efficiency of all Schenck Process pneumatic conveying systems, or as a stand alone valve is the original Dome Valve ® which incorporates a unique and highly reliable inflatable sealing arrangement. The original Dome Valve ® was developed by Clyde Materials Handling* in 1974 for use with pneumatic conveying systems and as a stand alone product. The Operation of a RotoFeed The RotoFeed machine consists of two pressure vessels, a rotating volumetric feeder at the outlet and valves to control the air supply, material flow and vessel pressure. The volumetric feeder will be driven through a gearbox by a standard induction motor. The dispensing vessel is used to provide a constant supply of material to the volumetric feeder. When material is being injected, the dispensing vessel will be pressurised. The lock vessel is used to periodically replenish the dispensing vessel with material. In this way, injection of material to the process can be continually maintained. The conveying air will enter the cupola along with the material and will leave the cupola along with the other process gases. RotoFeed Applications The RotoFeed system has been widely used in the steel and pig-iron industries, in order to continuously inject coal into their blast furnaces, reducing the requirements of coke, and allowing fines to be injected straight into the blast furnace. Injection rates usually average at 185kg/ton of hot metal, although some operations have injected up to 210kg/ton. Example: A pulverised charcoal injector, with injection capacity equal or superior to 150kg/ton of pig iron. *Clyde Materials Handling Ltd was purchased by Schenck Process in 2011 and the Original Dome Valve™ is part of Schenck Process technologies

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Rotofeed Pneumatic Injector - 2

Schenck Process UK Limited Carolina Court, Lakeside, Doncaster DN4 5RA England Tel: +44 (0) 1302 321 313 Fax: +44 (0) 1302 554 400 enquiries@schenckprocess.co.uk www.schenckprocess.co.uk 08/13. All information is given without obligation. All specifications are subject to change. RotoFeed in combination with pressure vessels and Dome Valves

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