Compressed Air Best Practices - February 2008 - (Page 21) Focus Industry BULK HANDLING | 02/08 | A Case Study This case study is of an older material transport system, which shows some of the pitfalls in running a system without the proper controls. The pneumatic transport system fills the eight supply silos with the appropriate material to be mixed and sent on to the furnace for production. Gravity feeds the material from the Blend Hold Hopper in the basement. The products are than pneumatically transported to two separate “Blender Hoppers” through 8" lines. These are for the two production lines. From the Blender Hopper, the mixed batch is pneumatically transported to three “Day Bins” for each line and then on to the furnace as required through 8" lines. At the current production levels, the batch transporter system needs to constantly handle 30,000 pounds per hour of mixture. In order to establish a 2-hour cushion of supply in the Day Bins, the system must be capable of runs of 90,000 pounds per hour. Over the years, in order to reach these continually increasing required transport levels, the basic system has been “adjusted,” particularly the air savers or boosters. These boosters are all running open with feed pressures from 30 psig to 90 psig as adjusted. Today, the measured average flow through the transport system is 1,500 scfm average (velocity up to 1,200 ft/min) and sustained peaks of 2,600 scfm (velocity 2,000 ft/min) for 2–3 minutes — 2,000 scfm for 6–8 minutes. These peak surge demands appear to occur at 10–45 minute intervals with five to six similar events during each hour. www.airbestpractices.com 21 http://www.airbestpractices.com
Table of Contents Feed for the Digital Edition of Compressed Air Best Practices - February 2008 Compressed Air Best Practices - February 2008 Contents From the Editor Utility-Air News February Audit of the Month: Dense-Phase Transport System Wreaks Havoc on Compressed Air System Real World Best Practices: Material Conveying with Pneumatic and Vacuum Systems Industrial Vacuum Cleaners Use Compressed Air in Portland Cement Manufacturing Processes The Numatics Air Preparation Group The Ins and Outs of Vacuum Generators Dekker Vacuum Technologies Do Your Meetings Sabotage Your Profits? Resources for Energy Engineers Wall Street Watch Advertiser Index Job Market Compressed Air Best Practices - February 2008 Compressed Air Best Practices - February 2008 - Compressed Air Best Practices - February 2008 (Page Cover1) Compressed Air Best Practices - February 2008 - Compressed Air Best Practices - February 2008 (Page Cover2) Compressed Air Best Practices - February 2008 - Compressed Air Best Practices - February 2008 (Page 3) Compressed Air Best Practices - February 2008 - Contents (Page 4) Compressed Air Best Practices - February 2008 - Contents (Page 5) Compressed Air Best Practices - February 2008 - Contents (Page 6) Compressed Air Best Practices - February 2008 - From the Editor (Page 7) Compressed Air Best Practices - February 2008 - Utility-Air News (Page 8) Compressed Air Best Practices - February 2008 - Utility-Air News (Page 9) Compressed Air Best Practices - February 2008 - February Audit of the Month: Dense-Phase Transport System Wreaks Havoc on Compressed Air System (Page 10) Compressed Air Best Practices - February 2008 - February Audit of the Month: Dense-Phase Transport System Wreaks Havoc on Compressed Air System (Page 11) Compressed Air Best Practices - February 2008 - February Audit of the Month: Dense-Phase Transport System Wreaks Havoc on Compressed Air System (Page 12) Compressed Air Best Practices - February 2008 - February Audit of the Month: Dense-Phase Transport System Wreaks Havoc on Compressed Air System (Page 13) Compressed Air Best Practices - February 2008 - February Audit of the Month: Dense-Phase Transport System Wreaks Havoc on Compressed Air System (Page 14) Compressed Air Best Practices - February 2008 - February Audit of the Month: Dense-Phase Transport System Wreaks Havoc on Compressed Air System (Page 15) Compressed Air Best Practices - February 2008 - February Audit of the Month: Dense-Phase Transport System Wreaks Havoc on Compressed Air System (Page 16) Compressed Air Best Practices - February 2008 - February Audit of the Month: Dense-Phase Transport System Wreaks Havoc on Compressed Air System (Page 17) Compressed Air Best Practices - February 2008 - Real World Best Practices: Material Conveying with Pneumatic and Vacuum Systems (Page 18) Compressed Air Best Practices - February 2008 - Real World Best Practices: Material Conveying with Pneumatic and Vacuum Systems (Page 19) Compressed Air Best Practices - February 2008 - Real World Best Practices: Material Conveying with Pneumatic and Vacuum Systems (Page 20) Compressed Air Best Practices - February 2008 - Real World Best Practices: Material Conveying with Pneumatic and Vacuum Systems (Page 21) Compressed Air Best Practices - February 2008 - Real World Best Practices: Material Conveying with Pneumatic and Vacuum Systems (Page 22) Compressed Air Best Practices - February 2008 - Real World Best Practices: Material Conveying with Pneumatic and Vacuum Systems (Page 23) Compressed Air Best Practices - February 2008 - Industrial Vacuum Cleaners Use Compressed Air in Portland Cement Manufacturing Processes (Page 24) Compressed Air Best Practices - February 2008 - Industrial Vacuum Cleaners Use Compressed Air in Portland Cement Manufacturing Processes (Page 25) Compressed Air Best Practices - February 2008 - Industrial Vacuum Cleaners Use Compressed Air in Portland Cement Manufacturing Processes (Page 26) Compressed Air Best Practices - February 2008 - Industrial Vacuum Cleaners Use Compressed Air in Portland Cement Manufacturing Processes (Page 27) Compressed Air Best Practices - February 2008 - The Numatics Air Preparation Group (Page 28) Compressed Air Best Practices - February 2008 - The Numatics Air Preparation Group (Page 29) Compressed Air Best Practices - February 2008 - The Numatics Air Preparation Group (Page 30) Compressed Air Best Practices - February 2008 - The Numatics Air Preparation Group (Page 31) Compressed Air Best Practices - February 2008 - The Numatics Air Preparation Group (Page 32) Compressed Air Best Practices - February 2008 - The Ins and Outs of Vacuum Generators (Page 33) Compressed Air Best Practices - February 2008 - The Ins and Outs of Vacuum Generators (Page 34) Compressed Air Best Practices - February 2008 - The Ins and Outs of Vacuum Generators (Page 35) Compressed Air Best Practices - February 2008 - Dekker Vacuum Technologies (Page 36) Compressed Air Best Practices - February 2008 - Dekker Vacuum Technologies (Page 37) Compressed Air Best Practices - February 2008 - Dekker Vacuum Technologies (Page 38) Compressed Air Best Practices - February 2008 - Dekker Vacuum Technologies (Page 39) Compressed Air Best Practices - February 2008 - Do Your Meetings Sabotage Your Profits? (Page 40) Compressed Air Best Practices - February 2008 - Do Your Meetings Sabotage Your Profits? (Page 41) Compressed Air Best Practices - February 2008 - Resources for Energy Engineers (Page 42) Compressed Air Best Practices - February 2008 - Resources for Energy Engineers (Page 43) Compressed Air Best Practices - February 2008 - Resources for Energy Engineers (Page 44) Compressed Air Best Practices - February 2008 - Resources for Energy Engineers (Page 45) Compressed Air Best Practices - February 2008 - Wall Street Watch (Page 46) Compressed Air Best Practices - February 2008 - Wall Street Watch (Page 47) Compressed Air Best Practices - February 2008 - Wall Street Watch (Page 48) Compressed Air Best Practices - February 2008 - Advertiser Index (Page 49) Compressed Air Best Practices - February 2008 - Job Market (Page 50) Compressed Air Best Practices - February 2008 - Job Market (Page Cover3) Compressed Air Best Practices - February 2008 - Job Market (Page Cover4)
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