Issue link: https://www.e-digitaleditions.com/i/1242780
2 / May 2020 powderbulk.com Powder and Bulk Engineering (ISSN 0897-6627) is published monthly, twelve times per year by CSC Publishing Inc., 1155 Northland Drive, St. Paul, MN 55120. Periodicals postage paid at St. Paul, MN and additional mailing office. POSTMASTER: Send address changes to Powder and Bulk Engineering, 1155 Northland Drive, St. Paul, MN 55120. May 2020 | Volume 34 Number 5 www.powderbulk.com T H E AU T H O R I T Y S I N C E 1 9 8 7 8 Industry news 13 Markets update 15 Research notes 19 Special section: Rotary airlocks 39 Calendar 40 Continuing education 43 What's new 44 Supplier notes 44 People news 44 Product news C3 Classified advertising C3 Advertiser index DEPARTMENTS INDUSTRY PERSPECTIVE 7 The pandemic's effect on industry Todd Smith 7 Letter to readers PBE staff BAGGING AND PACKAGING 24 Sizing, filling, and handling flexible intermediate bulk containers Don Mackrill 33 Focus products 48 Suppliers' tips How do I increase bagging speed without sacrificing accuracy? GENERAL FEATURES 16 Dust Doctor: A brief introduction to dust collection hoods John A. Constance 30 Air pollution control products 36 Explosion protection: Safely managing process changes David Grandaw 36 43 On the cover: Model AP 2600 bag filler is installed at a major flour milling operation in the central US. Unit fills 25- to 50-pound bags at the speed of 10 bags per minute. Courtesy of Chantland MHS, Humboldt, IA, 515-332-4045 (www.chantland.com). 24