PBS_Powder & Bulk Solids

Powder & Bulk Solids, June 2017

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PowderBulkSolids.com T h e S o u r c e f o r D r y P r o c e s s i n g a n d B u l k H a n d l i n g Te c h n o l o g y Official Publication of PowderShow.com Vol. 35, No. 7 Particle Segregation Can Be Costly Most processes must produce solids products that are uniformly mixed. Segregation of these particles can occur as they are being handled, and the results can be quite costly. Page 6 Applying Gate Valves with Rotary Airlocks in Pneumatic Conveying Applying gate valves above or below rotary airlocks in dilute phase pneumatic conveying systems can provide significant production benefits and cost savings for dry bulk material processors. Page 18 Preventing Silo Failures Regardless of the degree of silo failure, indications of structural damage should not be ignored, and proper design and construction practices must be enforced. Page 24 • IN THIS ISSUE J U N E 2 01 7 Drop-In Dust Collector Valve for Airlock Applications The ACS AN-X Series dust collector valve for airlock applications is ready to eat your dust and replace your non- compliant FT or AN valves. This NFPA 68 and 69 compliant rotary valve provides continuous transfer of any discharge particles from the hopper to your collection system. The AN-X 8-vane rotor consists of NFPA-compliant steel rotor tips to replace noncompliant rubber tips in FT and AN valves. Unlike rubber tips that won't withstand the heat of an explosion, steel tips can contain any flames and prevent deflagration from spreading through your machinery. The AN-X dust collector valvealso replaces noncompliant inboard bearings featured in FT and AN valves with NFPA- compliant outboard bearings. ACS Valves, Caledonia, ON, Canada 905-765-2004 acsvalves.com Wear Elimination & Abrasion Reduction Valve The Meyer Wear Elimination & Abrasion Reduction (W.E.A.R.) valve is designed and engineered for appli- cations where abrasive material build-up is an issue. The valve internals are coated with a variety of wear-resistant coatings specifically matched for the materials conveyed. Housing coating options include heavy chrome, diamond chrome, ceramic, and chrome carbide, along with all white iron cast designs. The rotor is a closed-end type and typi- cally hard faced on all tip contact areas with Stellite and precision ground. The shaft-packing area is purged through a lantern ring design for optimal life. The design injects clean air between the headplate and the closed end rotor. Conveying air is diverted to each headplate cavity via an engineered orifice place. The air is then reintroduced with the material back into the conveying system. WM. W. Meyer & Sons Inc., Libertyville, IL 847-918-0111 www.meyerindustrial.com Unloading Ammonium Nitrate Prill with a Tubular Drag Conveyor Page 10

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