ID#: 9469
Caption:
This historical drawing, provided by the Center for Disease Control's (CDC), National Institute for Occupational Safety and Health (NIOSH), detailed how to modify a basic electrical circuit, on Mine Safety Appliances (M.S.A.), electrostatic precipitator, model CT-43134, to handle a 6-volt direct current (DC) operation. The device filtered unburned particles from industrial burning operations, as in the case of coal fired electrical power plants, by electrically charging, or ionizing the particles. The positively charged particles then move toward negatively charged collecting electrodes, where they are trapped. The particles adhere to the collection plates, and build up into larger particles. The plates are then tapped, or rapped, which loosens the particles that then fall into hoppers, for collection and disposal. The drawing was published in the May, 1952 journal entitled, “Occupational Health”.
High Resolution: Click here for hi-resolution image (14.2 MB)
Content Provider(s): CDC/ Barbara Jenkins, NIOSH
Creation Date: 1952
Photo Credit: Unknown
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