Control Static Build-Up for Safety, Operator Comfort and Efficient media Separation

摘要

How many of us really read the owner's manual that accompanies our new purchase? Every Clemco owner's manual contains important information about the safe and efficient use of our equipment. Doing your homework and selecting the right equipment and media for your blast application are only the first steps to achieving an efficient operation. Blast equipment, by definition, brings together elements that as a matter of course have materials flowing through pipes or hoses; the activity and conditions surrounding blasting generate static electricity. Dry air, essential to an efficient blasting operation, contributes to the build up of static electricity. The movement of blast media particles through hoses to the nozzle/gun, over the part being blasted, and in the recovery hose generates static electricity. Cyclone-type separators and media classifiers, where media and dust swirl over large surface area, normally generate a static charge. This charge must be continuously dissipated to prevent an accumulation of an electrostatic charge that can result in a spark. If not dissipated, in a manual blast operation, the static charge is released when the operator comes in contact with the cabinet, usually around the armhole or wherever the operator leans against the cabinet.